<!--{{{-->
<link rel='alternate' type='application/rss+xml' title='RSS' href='index.xml'/>
<!--}}}-->
Background: #fff
Foreground: #000
PrimaryPale: #8cf
PrimaryLight: #18f
PrimaryMid: #04b
PrimaryDark: #014
SecondaryPale: #ffc
SecondaryLight: #fe8
SecondaryMid: #db4
SecondaryDark: #841
TertiaryPale: #eee
TertiaryLight: #ccc
TertiaryMid: #999
TertiaryDark: #666
Error: #f88
/*{{{*/
body {background:[[ColorPalette::Background]]; color:[[ColorPalette::Foreground]];}

a {color:[[ColorPalette::PrimaryMid]];}
a:hover {background-color:[[ColorPalette::PrimaryMid]]; color:[[ColorPalette::Background]];}
a img {border:0;}

h1,h2,h3,h4,h5,h6 {color:[[ColorPalette::SecondaryDark]]; background:transparent;}
h1 {border-bottom:2px solid [[ColorPalette::TertiaryLight]];}
h2,h3 {border-bottom:1px solid [[ColorPalette::TertiaryLight]];}

.button {color:[[ColorPalette::PrimaryDark]]; border:1px solid [[ColorPalette::Background]];}
.button:hover {color:[[ColorPalette::PrimaryDark]]; background:[[ColorPalette::SecondaryLight]]; border-color:[[ColorPalette::SecondaryMid]];}
.button:active {color:[[ColorPalette::Background]]; background:[[ColorPalette::SecondaryMid]]; border:1px solid [[ColorPalette::SecondaryDark]];}

.header {background:[[ColorPalette::PrimaryMid]];}
.headerShadow {color:[[ColorPalette::Foreground]];}
.headerShadow a {font-weight:normal; color:[[ColorPalette::Foreground]];}
.headerForeground {color:[[ColorPalette::Background]];}
.headerForeground a {font-weight:normal; color:[[ColorPalette::PrimaryPale]];}

.tabSelected{color:[[ColorPalette::PrimaryDark]];
	background:[[ColorPalette::TertiaryPale]];
	border-left:1px solid [[ColorPalette::TertiaryLight]];
	border-top:1px solid [[ColorPalette::TertiaryLight]];
	border-right:1px solid [[ColorPalette::TertiaryLight]];
}
.tabUnselected {color:[[ColorPalette::Background]]; background:[[ColorPalette::TertiaryMid]];}
.tabContents {color:[[ColorPalette::PrimaryDark]]; background:[[ColorPalette::TertiaryPale]]; border:1px solid [[ColorPalette::TertiaryLight]];}
.tabContents .button {border:0;}

#sidebar {}
#sidebarOptions input {border:1px solid [[ColorPalette::PrimaryMid]];}
#sidebarOptions .sliderPanel {background:[[ColorPalette::PrimaryPale]];}
#sidebarOptions .sliderPanel a {border:none;color:[[ColorPalette::PrimaryMid]];}
#sidebarOptions .sliderPanel a:hover {color:[[ColorPalette::Background]]; background:[[ColorPalette::PrimaryMid]];}
#sidebarOptions .sliderPanel a:active {color:[[ColorPalette::PrimaryMid]]; background:[[ColorPalette::Background]];}

.wizard {background:[[ColorPalette::PrimaryPale]]; border:1px solid [[ColorPalette::PrimaryMid]];}
.wizard h1 {color:[[ColorPalette::PrimaryDark]]; border:none;}
.wizard h2 {color:[[ColorPalette::Foreground]]; border:none;}
.wizardStep {background:[[ColorPalette::Background]]; color:[[ColorPalette::Foreground]];
	border:1px solid [[ColorPalette::PrimaryMid]];}
.wizardStep.wizardStepDone {background:[[ColorPalette::TertiaryLight]];}
.wizardFooter {background:[[ColorPalette::PrimaryPale]];}
.wizardFooter .status {background:[[ColorPalette::PrimaryDark]]; color:[[ColorPalette::Background]];}
.wizard .button {color:[[ColorPalette::Foreground]]; background:[[ColorPalette::SecondaryLight]]; border: 1px solid;
	border-color:[[ColorPalette::SecondaryPale]] [[ColorPalette::SecondaryDark]] [[ColorPalette::SecondaryDark]] [[ColorPalette::SecondaryPale]];}
.wizard .button:hover {color:[[ColorPalette::Foreground]]; background:[[ColorPalette::Background]];}
.wizard .button:active {color:[[ColorPalette::Background]]; background:[[ColorPalette::Foreground]]; border: 1px solid;
	border-color:[[ColorPalette::PrimaryDark]] [[ColorPalette::PrimaryPale]] [[ColorPalette::PrimaryPale]] [[ColorPalette::PrimaryDark]];}

#messageArea {border:1px solid [[ColorPalette::SecondaryMid]]; background:[[ColorPalette::SecondaryLight]]; color:[[ColorPalette::Foreground]];}
#messageArea .button {color:[[ColorPalette::PrimaryMid]]; background:[[ColorPalette::SecondaryPale]]; border:none;}

.popupTiddler {background:[[ColorPalette::TertiaryPale]]; border:2px solid [[ColorPalette::TertiaryMid]];}

.popup {background:[[ColorPalette::TertiaryPale]]; color:[[ColorPalette::TertiaryDark]]; border-left:1px solid [[ColorPalette::TertiaryMid]]; border-top:1px solid [[ColorPalette::TertiaryMid]]; border-right:2px solid [[ColorPalette::TertiaryDark]]; border-bottom:2px solid [[ColorPalette::TertiaryDark]];}
.popup hr {color:[[ColorPalette::PrimaryDark]]; background:[[ColorPalette::PrimaryDark]]; border-bottom:1px;}
.popup li.disabled {color:[[ColorPalette::TertiaryMid]];}
.popup li a, .popup li a:visited {color:[[ColorPalette::Foreground]]; border: none;}
.popup li a:hover {background:[[ColorPalette::SecondaryLight]]; color:[[ColorPalette::Foreground]]; border: none;}
.popup li a:active {background:[[ColorPalette::SecondaryPale]]; color:[[ColorPalette::Foreground]]; border: none;}
.popupHighlight {background:[[ColorPalette::Background]]; color:[[ColorPalette::Foreground]];}
.listBreak div {border-bottom:1px solid [[ColorPalette::TertiaryDark]];}

.tiddler .defaultCommand {font-weight:bold;}

.shadow .title {color:[[ColorPalette::TertiaryDark]];}

.title {color:[[ColorPalette::SecondaryDark]];}
.subtitle {color:[[ColorPalette::TertiaryDark]];}

.toolbar {color:[[ColorPalette::PrimaryMid]];}
.toolbar a {color:[[ColorPalette::TertiaryLight]];}
.selected .toolbar a {color:[[ColorPalette::TertiaryMid]];}
.selected .toolbar a:hover {color:[[ColorPalette::Foreground]];}

.tagging, .tagged {border:1px solid [[ColorPalette::TertiaryPale]]; background-color:[[ColorPalette::TertiaryPale]];}
.selected .tagging, .selected .tagged {background-color:[[ColorPalette::TertiaryLight]]; border:1px solid [[ColorPalette::TertiaryMid]];}
.tagging .listTitle, .tagged .listTitle {color:[[ColorPalette::PrimaryDark]];}
.tagging .button, .tagged .button {border:none;}

.footer {color:[[ColorPalette::TertiaryLight]];}
.selected .footer {color:[[ColorPalette::TertiaryMid]];}

.sparkline {background:[[ColorPalette::PrimaryPale]]; border:0;}
.sparktick {background:[[ColorPalette::PrimaryDark]];}

.error, .errorButton {color:[[ColorPalette::Foreground]]; background:[[ColorPalette::Error]];}
.warning {color:[[ColorPalette::Foreground]]; background:[[ColorPalette::SecondaryPale]];}
.lowlight {background:[[ColorPalette::TertiaryLight]];}

.zoomer {background:none; color:[[ColorPalette::TertiaryMid]]; border:3px solid [[ColorPalette::TertiaryMid]];}

.imageLink, #displayArea .imageLink {background:transparent;}

.annotation {background:[[ColorPalette::SecondaryLight]]; color:[[ColorPalette::Foreground]]; border:2px solid [[ColorPalette::SecondaryMid]];}

.viewer .listTitle {list-style-type:none; margin-left:-2em;}
.viewer .button {border:1px solid [[ColorPalette::SecondaryMid]];}
.viewer blockquote {border-left:3px solid [[ColorPalette::TertiaryDark]];}

.viewer table, table.twtable {border:2px solid [[ColorPalette::TertiaryDark]];}
.viewer th, .viewer thead td, .twtable th, .twtable thead td {background:[[ColorPalette::SecondaryMid]]; border:1px solid [[ColorPalette::TertiaryDark]]; color:[[ColorPalette::Background]];}
.viewer td, .viewer tr, .twtable td, .twtable tr {border:1px solid [[ColorPalette::TertiaryDark]];}

.viewer pre {border:1px solid [[ColorPalette::SecondaryLight]]; background:[[ColorPalette::SecondaryPale]];}
.viewer code {color:[[ColorPalette::SecondaryDark]];}
.viewer hr {border:0; border-top:dashed 1px [[ColorPalette::TertiaryDark]]; color:[[ColorPalette::TertiaryDark]];}

.highlight, .marked {background:[[ColorPalette::SecondaryLight]];}

.editor input {border:1px solid [[ColorPalette::PrimaryMid]];}
.editor textarea {border:1px solid [[ColorPalette::PrimaryMid]]; width:100%;}
.editorFooter {color:[[ColorPalette::TertiaryMid]];}

#backstageArea {background:[[ColorPalette::Foreground]]; color:[[ColorPalette::TertiaryMid]];}
#backstageArea a {background:[[ColorPalette::Foreground]]; color:[[ColorPalette::Background]]; border:none;}
#backstageArea a:hover {background:[[ColorPalette::SecondaryLight]]; color:[[ColorPalette::Foreground]]; }
#backstageArea a.backstageSelTab {background:[[ColorPalette::Background]]; color:[[ColorPalette::Foreground]];}
#backstageButton a {background:none; color:[[ColorPalette::Background]]; border:none;}
#backstageButton a:hover {background:[[ColorPalette::Foreground]]; color:[[ColorPalette::Background]]; border:none;}
#backstagePanel {background:[[ColorPalette::Background]]; border-color: [[ColorPalette::Background]] [[ColorPalette::TertiaryDark]] [[ColorPalette::TertiaryDark]] [[ColorPalette::TertiaryDark]];}
.backstagePanelFooter .button {border:none; color:[[ColorPalette::Background]];}
.backstagePanelFooter .button:hover {color:[[ColorPalette::Foreground]];}
#backstageCloak {background:[[ColorPalette::Foreground]]; opacity:0.6; filter:'alpha(opacity:60)';}
/*}}}*/
/*{{{*/
* html .tiddler {height:1%;}

body {font-size:.75em; font-family:arial,helvetica; margin:0; padding:0;}

h1,h2,h3,h4,h5,h6 {font-weight:bold; text-decoration:none;}
h1,h2,h3 {padding-bottom:1px; margin-top:1.2em;margin-bottom:0.3em;}
h4,h5,h6 {margin-top:1em;}
h1 {font-size:1.35em;}
h2 {font-size:1.25em;}
h3 {font-size:1.1em;}
h4 {font-size:1em;}
h5 {font-size:.9em;}

hr {height:1px;}

a {text-decoration:none;}

dt {font-weight:bold;}

ol {list-style-type:decimal;}
ol ol {list-style-type:lower-alpha;}
ol ol ol {list-style-type:lower-roman;}
ol ol ol ol {list-style-type:decimal;}
ol ol ol ol ol {list-style-type:lower-alpha;}
ol ol ol ol ol ol {list-style-type:lower-roman;}
ol ol ol ol ol ol ol {list-style-type:decimal;}

.txtOptionInput {width:11em;}

#contentWrapper .chkOptionInput {border:0;}

.externalLink {text-decoration:underline;}

.indent {margin-left:3em;}
.outdent {margin-left:3em; text-indent:-3em;}
code.escaped {white-space:nowrap;}

.tiddlyLinkExisting {font-weight:bold;}
.tiddlyLinkNonExisting {font-style:italic;}

/* the 'a' is required for IE, otherwise it renders the whole tiddler in bold */
a.tiddlyLinkNonExisting.shadow {font-weight:bold;}

#mainMenu .tiddlyLinkExisting,
	#mainMenu .tiddlyLinkNonExisting,
	#sidebarTabs .tiddlyLinkNonExisting {font-weight:normal; font-style:normal;}
#sidebarTabs .tiddlyLinkExisting {font-weight:bold; font-style:normal;}

.header {position:relative;}
.header a:hover {background:transparent;}
.headerShadow {position:relative; padding:4.5em 0em 1em 1em; left:-1px; top:-1px;}
.headerForeground {position:absolute; padding:4.5em 0em 1em 1em; left:0px; top:0px;}

.siteTitle {font-size:3em;}
.siteSubtitle {font-size:1.2em;}

#mainMenu {position:absolute; left:0; width:10em; text-align:right; line-height:1.6em; padding:1.5em 0.5em 0.5em 0.5em; font-size:1.1em;}

#sidebar {position:absolute; right:3px; width:16em; font-size:.9em;}
#sidebarOptions {padding-top:0.3em;}
#sidebarOptions a {margin:0em 0.2em; padding:0.2em 0.3em; display:block;}
#sidebarOptions input {margin:0.4em 0.5em;}
#sidebarOptions .sliderPanel {margin-left:1em; padding:0.5em; font-size:.85em;}
#sidebarOptions .sliderPanel a {font-weight:bold; display:inline; padding:0;}
#sidebarOptions .sliderPanel input {margin:0 0 .3em 0;}
#sidebarTabs .tabContents {width:15em; overflow:hidden;}

.wizard {padding:0.1em 1em 0em 2em;}
.wizard h1 {font-size:2em; font-weight:bold; background:none; padding:0em 0em 0em 0em; margin:0.4em 0em 0.2em 0em;}
.wizard h2 {font-size:1.2em; font-weight:bold; background:none; padding:0em 0em 0em 0em; margin:0.4em 0em 0.2em 0em;}
.wizardStep {padding:1em 1em 1em 1em;}
.wizard .button {margin:0.5em 0em 0em 0em; font-size:1.2em;}
.wizardFooter {padding:0.8em 0.4em 0.8em 0em;}
.wizardFooter .status {padding:0em 0.4em 0em 0.4em; margin-left:1em;}
.wizard .button {padding:0.1em 0.2em 0.1em 0.2em;}

#messageArea {position:fixed; top:2em; right:0em; margin:0.5em; padding:0.5em; z-index:2000; _position:absolute;}
.messageToolbar {display:block; text-align:right; padding:0.2em 0.2em 0.2em 0.2em;}
#messageArea a {text-decoration:underline;}

.tiddlerPopupButton {padding:0.2em 0.2em 0.2em 0.2em;}
.popupTiddler {position: absolute; z-index:300; padding:1em 1em 1em 1em; margin:0;}

.popup {position:absolute; z-index:300; font-size:.9em; padding:0; list-style:none; margin:0;}
.popup .popupMessage {padding:0.4em;}
.popup hr {display:block; height:1px; width:auto; padding:0; margin:0.2em 0em;}
.popup li.disabled {padding:0.4em;}
.popup li a {display:block; padding:0.4em; font-weight:normal; cursor:pointer;}
.listBreak {font-size:1px; line-height:1px;}
.listBreak div {margin:2px 0;}

.tabset {padding:1em 0em 0em 0.5em;}
.tab {margin:0em 0em 0em 0.25em; padding:2px;}
.tabContents {padding:0.5em;}
.tabContents ul, .tabContents ol {margin:0; padding:0;}
.txtMainTab .tabContents li {list-style:none;}
.tabContents li.listLink { margin-left:.75em;}

#contentWrapper {display:block;}
#splashScreen {display:none;}

#displayArea {margin:1em 17em 0em 14em;}

.toolbar {text-align:right; font-size:.9em;}

.tiddler {padding:1em 1em 0em 1em;}

.missing .viewer,.missing .title {font-style:italic;}

.title {font-size:1.6em; font-weight:bold;}

.missing .subtitle {display:none;}
.subtitle {font-size:1.1em;}

.tiddler .button {padding:0.2em 0.4em;}

.tagging {margin:0.5em 0.5em 0.5em 0; float:left; display:none;}
.isTag .tagging {display:block;}
.tagged {margin:0.5em; float:right;}
.tagging, .tagged {font-size:0.9em; padding:0.25em;}
.tagging ul, .tagged ul {list-style:none; margin:0.25em; padding:0;}
.tagClear {clear:both;}

.footer {font-size:.9em;}
.footer li {display:inline;}

.annotation {padding:0.5em; margin:0.5em;}

* html .viewer pre {width:99%; padding:0 0 1em 0;}
.viewer {line-height:1.4em; padding-top:0.5em;}
.viewer .button {margin:0em 0.25em; padding:0em 0.25em;}
.viewer blockquote {line-height:1.5em; padding-left:0.8em;margin-left:2.5em;}
.viewer ul, .viewer ol {margin-left:0.5em; padding-left:1.5em;}

.viewer table, table.twtable {border-collapse:collapse; margin:0.8em 1.0em;}
.viewer th, .viewer td, .viewer tr,.viewer caption,.twtable th, .twtable td, .twtable tr,.twtable caption {padding:3px;}
table.listView {font-size:0.85em; margin:0.8em 1.0em;}
table.listView th, table.listView td, table.listView tr {padding:0px 3px 0px 3px;}

.viewer pre {padding:0.5em; margin-left:0.5em; font-size:1.2em; line-height:1.4em; overflow:auto;}
.viewer code {font-size:1.2em; line-height:1.4em;}

.editor {font-size:1.1em;}
.editor input, .editor textarea {display:block; width:100%; font:inherit;}
.editorFooter {padding:0.25em 0em; font-size:.9em;}
.editorFooter .button {padding-top:0px; padding-bottom:0px;}

.fieldsetFix {border:0; padding:0; margin:1px 0px 1px 0px;}

.sparkline {line-height:1em;}
.sparktick {outline:0;}

.zoomer {font-size:1.1em; position:absolute; overflow:hidden;}
.zoomer div {padding:1em;}

* html #backstage {width:99%;}
* html #backstageArea {width:99%;}
#backstageArea {display:none; position:relative; overflow: hidden; z-index:150; padding:0.3em 0.5em 0.3em 0.5em;}
#backstageToolbar {position:relative;}
#backstageArea a {font-weight:bold; margin-left:0.5em; padding:0.3em 0.5em 0.3em 0.5em;}
#backstageButton {display:none; position:absolute; z-index:175; top:0em; right:0em;}
#backstageButton a {padding:0.1em 0.4em 0.1em 0.4em; margin:0.1em 0.1em 0.1em 0.1em;}
#backstage {position:relative; width:100%; z-index:50;}
#backstagePanel {display:none; z-index:100; position:absolute; margin:0em 3em 0em 3em; padding:1em 1em 1em 1em;}
.backstagePanelFooter {padding-top:0.2em; float:right;}
.backstagePanelFooter a {padding:0.2em 0.4em 0.2em 0.4em;}
#backstageCloak {display:none; z-index:20; position:absolute; width:100%; height:100px;}

.whenBackstage {display:none;}
.backstageVisible .whenBackstage {display:block;}
/*}}}*/
/***
StyleSheet for use when a translation requires any css style changes.
This StyleSheet can be used directly by languages such as Chinese, Japanese and Korean which need larger font sizes.
***/
/*{{{*/
body {font-size:0.8em;}
#sidebarOptions {font-size:1.05em;}
#sidebarOptions a {font-style:normal;}
#sidebarOptions .sliderPanel {font-size:0.95em;}
.subtitle {font-size:0.8em;}
.viewer table.listView {font-size:0.95em;}
/*}}}*/
/*{{{*/
@media print {
#mainMenu, #sidebar, #messageArea, .toolbar, #backstageButton, #backstageArea {display: none ! important;}
#displayArea {margin: 1em 1em 0em 1em;}
/* Fixes a feature in Firefox 1.5.0.2 where print preview displays the noscript content */
noscript {display:none;}
}
/*}}}*/
<!--{{{-->
<div class='header' macro='gradient vert [[ColorPalette::PrimaryLight]] [[ColorPalette::PrimaryMid]]'>
<div class='headerShadow'>
<span class='siteTitle' refresh='content' tiddler='SiteTitle'></span>&nbsp;
<span class='siteSubtitle' refresh='content' tiddler='SiteSubtitle'></span>
</div>
<div class='headerForeground'>
<span class='siteTitle' refresh='content' tiddler='SiteTitle'></span>&nbsp;
<span class='siteSubtitle' refresh='content' tiddler='SiteSubtitle'></span>
</div>
</div>
<div id='mainMenu' refresh='content' tiddler='MainMenu'></div>
<div id='sidebar'>
<div id='sidebarOptions' refresh='content' tiddler='SideBarOptions'></div>
<div id='sidebarTabs' refresh='content' force='true' tiddler='SideBarTabs'></div>
</div>
<div id='displayArea'>
<div id='messageArea'></div>
<div id='tiddlerDisplay'></div>
</div>
<!--}}}-->
<!--{{{-->
<div class='toolbar' macro='toolbar [[ToolbarCommands::ViewToolbar]]'></div>
<div class='title' macro='view title'></div>
<div class='subtitle'><span macro='view modifier link'></span>, <span macro='view modified date'></span> (<span macro='message views.wikified.createdPrompt'></span> <span macro='view created date'></span>)</div>
<div class='tagging' macro='tagging'></div>
<div class='tagged' macro='tags'></div>
<div class='viewer' macro='view text wikified'></div>
<div class='tagClear'></div>
<!--}}}-->
<!--{{{-->
<div class='toolbar' macro='toolbar [[ToolbarCommands::EditToolbar]]'></div>
<div class='title' macro='view title'></div>
<div class='editor' macro='edit title'></div>
<div macro='annotations'></div>
<div class='editor' macro='edit text'></div>
<div class='editor' macro='edit tags'></div><div class='editorFooter'><span macro='message views.editor.tagPrompt'></span><span macro='tagChooser'></span></div>
<!--}}}-->
To get started with this blank TiddlyWiki, you'll need to modify the following tiddlers:
* SiteTitle & SiteSubtitle: The title and subtitle of the site, as shown above (after saving, they will also appear in the browser title bar)
* MainMenu: The menu (usually on the left)
* DefaultTiddlers: Contains the names of the tiddlers that you want to appear when the TiddlyWiki is opened
You'll also need to enter your username for signing your edits: <<option txtUserName>>
These InterfaceOptions for customising TiddlyWiki are saved in your browser

Your username for signing your edits. Write it as a WikiWord (eg JoeBloggs)

<<option txtUserName>>
<<option chkSaveBackups>> SaveBackups
<<option chkAutoSave>> AutoSave
<<option chkRegExpSearch>> RegExpSearch
<<option chkCaseSensitiveSearch>> CaseSensitiveSearch
<<option chkAnimate>> EnableAnimations

----
Also see AdvancedOptions
<<importTiddlers>>
by Daniel Shiffman. Create a more complex wave by adding two waves together.

<<Processing 

int xspacing = 8;   // How far apart should each horizontal location be spaced
int w;              // Width of entire wave
int maxwaves = 4;   // total # of waves to add together

float theta = 0.0f;
float[] amplitude = new float[maxwaves];   // Height of wave
float[] dx = new float[maxwaves];          // Value for incrementing X, to be calculated as a function of period and xspacing
float[] yvalues;                           // Using an array to store height values for the wave (not entirely necessary)

void setup() {
  size(200,200);
  frameRate(30);
  colorMode(RGB,255,255,255,100);
  smooth();
  w = width+16;

  for (int i = 0; i < maxwaves; i++) {
    amplitude[i] = random(10,30);
    float period = random(100,300); // How many pixels before the wave repeats
    dx[i] = (TWO_PI / period) * xspacing;
  }

  yvalues = new float[w/xspacing];
}

void draw() {
  background(0);
  calcWave();
  renderWave();
}

void calcWave() {
  // Increment theta (try different values for 'angular velocity' here
  theta += 0.02;

  // Set all height values to zero
  for (int i = 0; i < yvalues.length; i++) {
    yvalues[i] = 0.0f;
  }
 
  // Accumulate wave height values
  for (int j = 0; j < maxwaves; j++) {
    float x = theta;
    for (int i = 0; i < yvalues.length; i++) {
      // Every other wave is cosine instead of sine
      if (j % 2 == 0)  yvalues[i] += sin(x)*amplitude[j];
      else yvalues[i] += cos(x)*amplitude[j];
      x+=dx[j];
    }
  }
}

void renderWave() {
  // A simple way to draw the wave with an ellipse at each location
  noStroke();
  fill(255,50);
  ellipseMode(CENTER);
  for (int x = 0; x < yvalues.length; x++) {
    ellipse(x*xspacing,width/2+yvalues[x],16,16);
  }
}

>>

Taken from [[basic/additivewave.html|http://ejohn.org/apps/processing.js/examples/basic/additivewave.html]]
The angle of each segment is controlled with the mouseX and mouseY position. The transformations applied to the first segment are also applied to the second segment because they are inside the same pushMatrix() and popMatrix() group.

<<Processing 

float x = 50;
float y = 100;
float angle1 = 0.0;
float angle2 = 0.0;
float segLength = 50;

void setup() {
  size(200, 200);
  smooth(); 
  strokeWeight(20.0);
  stroke(0, 100);
}

void draw() {
  background(226);
  
  angle1 = (mouseX/float(width) - 0.5) * -PI;
  angle2 = (mouseY/float(height) - 0.5) * PI;
  
  pushMatrix();
  segment(x, y, angle1); 
  segment(segLength, 0, angle2);
  popMatrix();
}

void segment(float x, float y, float a) {
  translate(x, y);
  rotate(a);
  line(0, 0, segLength, 0);
}

>>

Taken from [[basic/arm.html|http://ejohn.org/apps/processing.js/examples/basic/arm.html]]
The first two parameters for the bezier() function specify the first point in the curve and the last two parameters specify the last point. The middle parameters set the control points that define the shape of the curve.

<<Processing 

size(200, 200); 
background(0); 
stroke(255);
noFill();
smooth(); 

for(int i = 0; i < 100; i += 20) {
  bezier(90-(i/2.0), 20+i, 210, 10, 220, 150, 120-(i/8.0), 150+(i/4.0));
}

>>

Taken from [[basic/bezier.html|http://ejohn.org/apps/processing.js/examples/basic/bezier.html]]
The current time can be read with the second(), minute(), and hour() functions. In this example, sin() and cos() values are used to set the position of the hands. *

<<Processing 

void setup() {
  size(200, 200);
  stroke(255);
  smooth();
}
void draw() {
  background(0);
  fill(80);
  noStroke();
  // Angles for sin() and cos() start at 3 o'clock;
  // subtract HALF_PI to make them start at the top
  ellipse(100, 100, 160, 160);
  float s = map(second(), 0, 60, 0, TWO_PI) - HALF_PI;
  float m = map(minute(), 0, 60, 0, TWO_PI) - HALF_PI;
  float h = map(hour() % 12, 0, 12, 0, TWO_PI) - HALF_PI;
  stroke(255);
  strokeWeight(1);
  line(100, 100, cos(s) * 72 + 100, sin(s) * 72 + 100);
  strokeWeight(2);
  line(100, 100, cos(m) * 60 + 100, sin(m) * 60 + 100);
  strokeWeight(4);
  line(100, 100, cos(h) * 50 + 100, sin(h) * 50 + 100);
}

>>

Taken from [[basic/clock.html|http://ejohn.org/apps/processing.js/examples/basic/clock.html]]
/***
|Name:|CloseOnCancelPlugin|
|Description:|Closes the tiddler if you click new tiddler then cancel. Default behaviour is to leave it open|
|Version:|3.0.1 ($Rev: 3861 $)|
|Date:|$Date: 2008-03-08 10:53:09 +1000 (Sat, 08 Mar 2008) $|
|Source:|http://mptw.tiddlyspot.com/#CloseOnCancelPlugin|
|Author:|Simon Baird <simon.baird@gmail.com>|
|License:|http://mptw.tiddlyspot.com/#TheBSDLicense|
***/
//{{{
merge(config.commands.cancelTiddler,{

	handler_mptw_orig_closeUnsaved: config.commands.cancelTiddler.handler,

	handler: function(event,src,title) {
		this.handler_mptw_orig_closeUnsaved(event,src,title);
		if (!store.tiddlerExists(title) && !store.isShadowTiddler(title))
			story.closeTiddler(title,true);
	 	return false;
	}

});

//}}}

Name: MptwSmoke
Background: #fff
Foreground: #000
PrimaryPale: #aaa
PrimaryLight: #777
PrimaryMid: #111
PrimaryDark: #000
SecondaryPale: #ffc
SecondaryLight: #fe8
SecondaryMid: #db4
SecondaryDark: #841
TertiaryPale: #eee
TertiaryLight: #ccc
TertiaryMid: #999
TertiaryDark: #666
Error: #f88

by Ira Greenberg. The primaries are red, yellow, and blue. The secondaries are green, purple, and orange. The tertiaries are  yellow-orange, red-orange, red-purple, blue-purple, blue-green, and yellow-green. Create a shade or tint of the subtractive color wheel using SHADE or TINT parameters.

<<Processing 

int segs = 12;
int steps = 6;
float rotAdjust = radians(360.0/segs/2.0);
float radius = 95.0;
float segWidth = radius/steps;
float interval = TWO_PI/segs;
int SHADE = 0;
int TINT = 1;

void setup(){
  size(200, 200);
  background(127);
  smooth();
  ellipseMode(CENTER_RADIUS);
  noStroke();
 // you can substitue TINT for SHADE argument
 createWheel(width/2, height/2, SHADE);
}

void createWheel(int x, int y, int valueShift){
  if (valueShift == SHADE){
    for (int j=0; j<steps; j++){
      color[]cols = { 
        color(255-(255/steps)*j, 255-(255/steps)*j, 0), 
        color(255-(255/steps)*j, (255/1.5)-((255/1.5)/steps)*j, 0), 
        color(255-(255/steps)*j, (255/2)-((255/2)/steps)*j, 0), 
        color(255-(255/steps)*j, (255/2.5)-((255/2.5)/steps)*j, 0), 
        color(255-(255/steps)*j, 0, 0), 
        color(255-(255/steps)*j, 0, (255/2)-((255/2)/steps)*j), 
        color(255-(255/steps)*j, 0, 255-(255/steps)*j), 
        color((255/2)-((255/2)/steps)*j, 0, 255-(255/steps)*j), 
        color(0, 0, 255-(255/steps)*j),
        color(0, 255-(255/steps)*j, (255/2.5)-((255/2.5)/steps)*j), 
        color(0, 255-(255/steps)*j, 0), 
        color((255/2)-((255/2)/steps)*j, 255-(255/steps)*j, 0) };
      for (int i=0; i< segs; i++){
        fill(cols[i]);
        arc(x, y, radius, radius, interval*i+rotAdjust, interval*(i+1)+rotAdjust);
      }
      radius -= segWidth;
    }
  } else  if (valueShift == TINT){
    for (int j=0; j<steps; j++){
      color[]cols = { 
        color((255/steps)*j, (255/steps)*j, 0), 
        color((255/steps)*j, ((255/1.5)/steps)*j, 0), 
        color((255/steps)*j, ((255/2)/steps)*j, 0), 
        color((255/steps)*j, ((255/2.5)/steps)*j, 0), 
        color((255/steps)*j, 0, 0), 
        color((255/steps)*j, 0, ((255/2)/steps)*j), 
        color((255/steps)*j, 0, (255/steps)*j), 
        color(((255/2)/steps)*j, 0, (255/steps)*j), 
        color(0, 0, (255/steps)*j),
        color(0, (255/steps)*j, ((255/2.5)/steps)*j), 
        color(0, (255/steps)*j, 0), 
        color(((255/2)/steps)*j, (255/steps)*j, 0) };
      for (int i=0; i< segs; i++){
        fill(cols[i]);
        arc(x, y, radius, radius, interval*i+rotAdjust, interval*(i+1)+rotAdjust);
      }
      radius -= segWidth;
    }
  } 
}

>>

Taken from [[basic/colorwheel.html|http://ejohn.org/apps/processing.js/examples/basic/colorwheel.html]]
An object can include several other objects. Creating such composite objects is a good way to use the principles of modularity and build higher levels of abstraction within a program.

<<Processing 

EggRing er1, er2;

void setup() 
{
  size(200, 200);
  smooth();
  er1 = new EggRing(66, 132, 0.1, 66);
  er2 = new EggRing(132, 180, 0.05, 132);
}

void draw() 
{
  background(0);
  er1.transmit();
  er2.transmit();
}

class EggRing 
{
  Egg ovoid;
  Ring circle = new Ring();
  EggRing(int x, int y, float t, float sp) {
    ovoid = new Egg(x, y, t, sp);
    circle.start(x, y - sp/2);
  }
  void transmit() {
    ovoid.wobble();
    ovoid.display();
    circle.grow();
    circle.display();
    if (circle.on == false) {
      circle.on = true;
    }
  }
}

class Egg {
  float x, y; // X-coordinate, y-coordinate
  float tilt; // Left and right angle offset
  float angle; // Used to define the tilt
  float scalar; // Height of the egg
  // Constructor
  Egg(int xpos, int ypos, float t, float s) {
    x = xpos;
    y = ypos;
    tilt = t;
    scalar = s / 100.0;
  }
  void wobble() {
    tilt = cos(angle) / 8;
    angle += 0.1;
  }
  void display() {
    noStroke();
    fill(255);
    pushMatrix();
    translate(x, y);
    rotate(tilt);
    scale(scalar);
    beginShape();
    vertex(0, -100);
    bezierVertex(25, -100, 40, -65, 40, -40);
    bezierVertex(40, -15, 25, 0, 0, 0);
    bezierVertex(-25, 0, -40, -15, -40, -40);
    bezierVertex(-40, -65, -25, -100, 0, -100);
    endShape();
    popMatrix();
  }
}

class Ring {
  float x, y; // X-coordinate, y-coordinate
  float diameter; // Diameter of the ring
  boolean on = false; // Turns the display on and off
  void start(float xpos, float ypos) {
    x = xpos;
    y = ypos;
    on = true;
    diameter = 1;
  }
  void grow() {
    if (on == true) {
      diameter += 0.5;
      if (diameter > width*2) {
        diameter = 0.0;
      }
    }
  }
  void display() {
    if (on == true) {
      noFill();
      strokeWeight(4);
      stroke(155, 153);
      ellipse(x, y, diameter, diameter);
    }
  }
}

>>

Taken from [[basic/compositeobjects.html|http://ejohn.org/apps/processing.js/examples/basic/compositeobjects.html]]
TiddlyProcessing Spiral
Embedding "for" structures allows repetition in two dimensions.

<<Processing 

float box_size = 11; 
float box_space = 12; 
int margin = 7; 
 
size(200, 200); 
background(0); 
noStroke(); 
 
// Draw gray boxes 
 
for(int i = margin; i < width-margin; i += box_space) { 
  for(int j = margin; j < height-margin; j += box_space) { 
    fill(255 - box_size*10); 
    rect(j, i, box_size, box_size); 
  } 
  box_size = box_size - 0.6; 
}

>>

Taken from [[basic/embeddediteration.html|http://ejohn.org/apps/processing.js/examples/basic/embeddediteration.html]]
/***
|Name:|ExtentTagButtonPlugin|
|Description:|Adds a New tiddler button in the tag drop down|
|Version:|3.2 ($Rev: 3861 $)|
|Date:|$Date: 2008-03-08 10:53:09 +1000 (Sat, 08 Mar 2008) $|
|Source:|http://mptw.tiddlyspot.com/#ExtendTagButtonPlugin|
|Author:|Simon Baird <simon.baird@gmail.com>|
|License|http://mptw.tiddlyspot.com/#TheBSDLicense|
***/
//{{{

window.onClickTag_mptw_orig = window.onClickTag;
window.onClickTag = function(e) {
	window.onClickTag_mptw_orig.apply(this,arguments);
	var tag = this.getAttribute("tag");
	var title = this.getAttribute("tiddler");
	// Thanks Saq, you're a genius :)
	var popup = Popup.stack[Popup.stack.length-1].popup;
	createTiddlyElement(createTiddlyElement(popup,"li",null,"listBreak"),"div");
	wikify("<<newTiddler label:'New tiddler' tag:'"+tag+"'>>",createTiddlyElement(popup,"li"));
	return false;
}

//}}}

The draw_target() function makes it easy to draw many distinct targets. Each call to draw_target() specifies the position, size, and number of rings for each target.

<<Processing 

void setup() 
{
  size(200, 200);
  background(51);
  noStroke();
  smooth();
  noLoop();
}

void draw() 
{
  draw_target(68, 34, 200, 10);
  draw_target(152, 16, 100, 3);
  draw_target(100, 144, 80, 5);
}

void draw_target(int xloc, int yloc, int size, int num) 
{
  float grayvalues = 255/num;
  float steps = size/num;
  for(int i=0; i<num; i++) {
    fill(i*grayvalues);
    ellipse(xloc, yloc, size-i*steps, size-i*steps);
  }
}

>>

Taken from [[basic/functions.html|http://ejohn.org/apps/processing.js/examples/basic/functions.html]]
/***
|Name:|HideWhenPlugin|
|Description:|Allows conditional inclusion/exclusion in templates|
|Version:|3.1 ($Rev: 3919 $)|
|Date:|$Date: 2008-03-13 02:03:12 +1000 (Thu, 13 Mar 2008) $|
|Source:|http://mptw.tiddlyspot.com/#HideWhenPlugin|
|Author:|Simon Baird <simon.baird@gmail.com>|
|License:|http://mptw.tiddlyspot.com/#TheBSDLicense|
For use in ViewTemplate and EditTemplate. Example usage:
{{{<div macro="showWhenTagged Task">[[TaskToolbar]]</div>}}}
{{{<div macro="showWhen tiddler.modifier == 'BartSimpson'"><img src="bart.gif"/></div>}}}
***/
//{{{

window.hideWhenLastTest = false;

window.removeElementWhen = function(test,place) {
	window.hideWhenLastTest = test;
	if (test) {
		removeChildren(place);
		place.parentNode.removeChild(place);
	}
};


merge(config.macros,{

	hideWhen: { handler: function(place,macroName,params,wikifier,paramString,tiddler) {
		removeElementWhen( eval(paramString), place);
	}},

	showWhen: { handler: function(place,macroName,params,wikifier,paramString,tiddler) {
		removeElementWhen( !eval(paramString), place);
	}},

	hideWhenTagged: { handler: function (place,macroName,params,wikifier,paramString,tiddler) {
		removeElementWhen( tiddler.tags.containsAll(params), place);
	}},

	showWhenTagged: { handler: function (place,macroName,params,wikifier,paramString,tiddler) {
		removeElementWhen( !tiddler.tags.containsAll(params), place);
	}},

	hideWhenTaggedAny: { handler: function (place,macroName,params,wikifier,paramString,tiddler) {
		removeElementWhen( tiddler.tags.containsAny(params), place);
	}},

	showWhenTaggedAny: { handler: function (place,macroName,params,wikifier,paramString,tiddler) {
		removeElementWhen( !tiddler.tags.containsAny(params), place);
	}},

	hideWhenTaggedAll: { handler: function (place,macroName,params,wikifier,paramString,tiddler) {
		removeElementWhen( tiddler.tags.containsAll(params), place);
	}},

	showWhenTaggedAll: { handler: function (place,macroName,params,wikifier,paramString,tiddler) {
		removeElementWhen( !tiddler.tags.containsAll(params), place);
	}},

	hideWhenExists: { handler: function(place,macroName,params,wikifier,paramString,tiddler) {
		removeElementWhen( store.tiddlerExists(params[0]) || store.isShadowTiddler(params[0]), place);
	}},

	showWhenExists: { handler: function(place,macroName,params,wikifier,paramString,tiddler) {
		removeElementWhen( !(store.tiddlerExists(params[0]) || store.isShadowTiddler(params[0])), place);
	}},

	hideWhenTitleIs: { handler: function(place,macroName,params,wikifier,paramString,tiddler) {
		removeElementWhen( tiddler.title == params[0], place);
	}},

	showWhenTitleIs: { handler: function(place,macroName,params,wikifier,paramString,tiddler) {
		removeElementWhen( tiddler.title != params[0], place);
	}},

	'else': { handler: function(place,macroName,params,wikifier,paramString,tiddler) {
		removeElementWhen( !window.hideWhenLastTest, place);
	}}

});

//}}}

A class can be defined using another class as a foundation. In object-oriented programming terminology, one class can inherit fi elds and methods from another. An object that inherits from another is called a subclass, and the object it inherits from is called a superclass. A subclass extends the superclass.

<<Processing 

SpinSpots spots;
SpinArm arm;

void setup() 
{
  size(200, 200);
  smooth();
  arm = new SpinArm(width/2, height/2, 0.01);
  spots = new SpinSpots(width/2, height/2, -0.02, 33.0);
}

void draw() 
{
  background(204);
  arm.update();
  arm.display();
  spots.update();
  spots.display();
}

class Spin 
{
  float x, y, speed;
  float angle = 0.0;
  Spin(float xpos, float ypos, float s) {
    x = xpos;
    y = ypos;
    speed = s;
  }
  void update() {
    angle += speed;
  }
}

class SpinArm extends Spin 
{
  SpinArm(float x, float y, float s) {
    super(x, y, s);
  }
  void display() {
    strokeWeight(1);
    stroke(0);
    pushMatrix();
    translate(x, y);
    angle += speed;
    rotate(angle);
    line(0, 0, 66, 0);
    popMatrix();
  }
}

class SpinSpots extends Spin 
{
  float dim;
  SpinSpots(float x, float y, float s, float d) {
    super(x, y, s);
    dim = d;
  }
  void display() {
    noStroke();
    pushMatrix();
    translate(x, y);
    angle += speed;
    rotate(angle);
    ellipse(-dim/2, 0, dim, dim);
    ellipse(dim/2, 0, dim, dim);
    popMatrix();
  }
}

>>

Taken from [[basic/inheritance.html|http://ejohn.org/apps/processing.js/examples/basic/inheritance.html]]
/***
|Name:|InstantTimestampPlugin|
|Description:|A handy way to insert timestamps in your tiddler content|
|Version:|1.0.10 ($Rev: 3646 $)|
|Date:|$Date: 2008-02-27 02:34:38 +1000 (Wed, 27 Feb 2008) $|
|Source:|http://mptw.tiddlyspot.com/#InstantTimestampPlugin|
|Author:|Simon Baird <simon.baird@gmail.com>|
|License:|http://mptw.tiddlyspot.com/#TheBSDLicense|
!!Usage
If you enter {ts} in your tiddler content (without the spaces) it will be replaced with a timestamp when you save the tiddler. Full list of formats:
* {ts} or {t} -> timestamp
* {ds} or {d} -> datestamp
* !ts or !t at start of line -> !!timestamp
* !ds or !d at start of line -> !!datestamp
(I added the extra ! since that's how I like it. Remove it from translations below if required)
!!Notes
* Change the timeFormat and dateFormat below to suit your preference.
* See also http://mptw2.tiddlyspot.com/#AutoCorrectPlugin
* You could invent other translations and add them to the translations array below.
***/
//{{{

config.InstantTimestamp = {

	// adjust to suit
	timeFormat: 'DD/0MM/YY 0hh:0mm',
	dateFormat: 'DD/0MM/YY',

	translations: [
		[/^!ts?$/img,  "'!!{{ts{'+now.formatString(config.InstantTimestamp.timeFormat)+'}}}'"],
		[/^!ds?$/img,  "'!!{{ds{'+now.formatString(config.InstantTimestamp.dateFormat)+'}}}'"],

		// thanks Adapted Cat
		[/\{ts?\}(?!\}\})/ig,"'{{ts{'+now.formatString(config.InstantTimestamp.timeFormat)+'}}}'"],
		[/\{ds?\}(?!\}\})/ig,"'{{ds{'+now.formatString(config.InstantTimestamp.dateFormat)+'}}}'"]
		
	],

	excludeTags: [
		"noAutoCorrect",
		"noTimestamp",
		"html",
		"CSS",
		"css",
		"systemConfig",
		"systemConfigDisabled",
		"zsystemConfig",
		"Plugins",
		"Plugin",
		"plugins",
		"plugin",
		"javascript",
		"code",
		"systemTheme",
		"systemPalette"
	],

	excludeTiddlers: [
		"StyleSheet",
		"StyleSheetLayout",
		"StyleSheetColors",
		"StyleSheetPrint"
		// more?
	]

}; 

TiddlyWiki.prototype.saveTiddler_mptw_instanttimestamp = TiddlyWiki.prototype.saveTiddler;
TiddlyWiki.prototype.saveTiddler = function(title,newTitle,newBody,modifier,modified,tags,fields,clearChangeCount,created) {

	tags = (typeof(tags) == "string") ? tags.readBracketedList() : tags;
	var conf = config.InstantTimestamp;

	if ( !tags.containsAny(conf.excludeTags) && !conf.excludeTiddlers.contains(newTitle) ) {

		var now = new Date();
		var trans = conf.translations;
		for (var i=0;i<trans.length;i++) {
			newBody = newBody.replace(trans[i][0], eval(trans[i][1]));
		}
	}

	// TODO: use apply() instead of naming all args?
	return this.saveTiddler_mptw_instanttimestamp(title,newTitle,newBody,modifier,modified,tags,fields,clearChangeCount,created);
}

// you can override these in StyleSheet 
setStylesheet(".ts,.ds { background-color:#ddd; font-style:italic; }","instantTimestampStyles");

//}}}

/***
|Name:|LessBackupsPlugin|
|Description:|Intelligently limit the number of backup files you create|
|Version:|3.0.1 ($Rev: 2320 $)|
|Date:|$Date: 2007-06-18 22:37:46 +1000 (Mon, 18 Jun 2007) $|
|Source:|http://mptw.tiddlyspot.com/#LessBackupsPlugin|
|Author:|Simon Baird|
|Email:|simon.baird@gmail.com|
|License:|http://mptw.tiddlyspot.com/#TheBSDLicense|
!!Description
You end up with just backup one per year, per month, per weekday, per hour, minute, and second.  So total number won't exceed about 200 or so. Can be reduced by commenting out the seconds/minutes/hours line from modes array
!!Notes
Works in IE and Firefox only.  Algorithm by Daniel Baird. IE specific code by by Saq Imtiaz.
***/
//{{{

var MINS  = 60 * 1000;
var HOURS = 60 * MINS;
var DAYS  = 24 * HOURS;

if (!config.lessBackups) {
	config.lessBackups = {
		// comment out the ones you don't want or set config.lessBackups.modes in your 'tweaks' plugin
		modes: [
			["YYYY",  365*DAYS], // one per year for ever
			["MMM",   31*DAYS],  // one per month
			["ddd",   7*DAYS],   // one per weekday
			//["d0DD",  1*DAYS],   // one per day of month
			["h0hh",  24*HOURS], // one per hour
			["m0mm",  1*HOURS],  // one per minute
			["s0ss",  1*MINS],   // one per second
			["latest",0]         // always keep last version. (leave this).
		]
	};
}

window.getSpecialBackupPath = function(backupPath) {

	var now = new Date();

	var modes = config.lessBackups.modes;

	for (var i=0;i<modes.length;i++) {

		// the filename we will try
		var specialBackupPath = backupPath.replace(/(\.)([0-9]+\.[0-9]+)(\.html)$/,
				'$1'+now.formatString(modes[i][0]).toLowerCase()+'$3')

		// open the file
		try {
			if (config.browser.isIE) {
				var fsobject = new ActiveXObject("Scripting.FileSystemObject")
				var fileExists  = fsobject.FileExists(specialBackupPath);
				if (fileExists) {
					var fileObject = fsobject.GetFile(specialBackupPath);
					var modDate = new Date(fileObject.DateLastModified).valueOf();
				}
			}
			else {
				netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
				var file = Components.classes["@mozilla.org/file/local;1"].createInstance(Components.interfaces.nsILocalFile);
				file.initWithPath(specialBackupPath);
				var fileExists = file.exists();
				if (fileExists) {
					var modDate = file.lastModifiedTime;
				}
			}
		}
		catch(e) {
			// give up
			return backupPath;
		}

		// expiry is used to tell if it's an 'old' one. Eg, if the month is June and there is a
		// June file on disk that's more than an month old then it must be stale so overwrite
		// note that "latest" should be always written because the expiration period is zero (see above)
		var expiry = new Date(modDate + modes[i][1]);
		if (!fileExists || now > expiry)
			return specialBackupPath;
	}
}

// hijack the core function
window.getBackupPath_mptw_orig = window.getBackupPath;
window.getBackupPath = function(localPath) {
	return getSpecialBackupPath(getBackupPath_mptw_orig(localPath));
}

//}}}

/***
|''Name:''|LoadRemoteFileThroughProxy (previous LoadRemoteFileHijack)|
|''Description:''|When the TiddlyWiki file is located on the web (view over http) the content of [[SiteProxy]] tiddler is added in front of the file url. If [[SiteProxy]] does not exist "/proxy/" is added. |
|''Version:''|1.1.0|
|''Date:''|mar 17, 2007|
|''Source:''|http://tiddlywiki.bidix.info/#LoadRemoteFileHijack|
|''Author:''|BidiX (BidiX (at) bidix (dot) info)|
|''License:''|[[BSD open source license|http://tiddlywiki.bidix.info/#%5B%5BBSD%20open%20source%20license%5D%5D ]]|
|''~CoreVersion:''|2.2.0|
***/
//{{{
version.extensions.LoadRemoteFileThroughProxy = {
 major: 1, minor: 1, revision: 0, 
 date: new Date("mar 17, 2007"), 
 source: "http://tiddlywiki.bidix.info/#LoadRemoteFileThroughProxy"};

if (!window.bidix) window.bidix = {}; // bidix namespace
if (!bidix.core) bidix.core = {};

bidix.core.loadRemoteFile = loadRemoteFile;
loadRemoteFile = function(url,callback,params)
{
 if ((document.location.toString().substr(0,4) == "http") && (url.substr(0,4) == "http")){ 
  url = store.getTiddlerText("SiteProxy", "/proxy/") + url;
 }
 return bidix.core.loadRemoteFile(url,callback,params);
}
//}}}
MPTW is a distribution or edition of TiddlyWiki that includes a standard TiddlyWiki core packaged with some plugins designed to improve usability and provide a better way to organise your information. For more information see http://mptw.tiddlyspot.com/.
TiddlyProcessing
<<tag [[Processing Examples]]>>
<<tag [[ProcessingjsPlugin Demos]]>>
ProcessingjsPlugin
A millisecond is 1/1000 of a second. Processing keeps track of the number of milliseconds a program has run. By modifying this number with the modulo(%) operator, different patterns in time are created.

<<Processing 

float scale;

void setup()
{
  size(200, 200);
  noStroke();
  scale = width/10;
}

void draw()
{ 
  for(int i=0; i<scale; i++) {
    colorMode(RGB, (i+1) * scale * 10);
    fill(millis()%((i+1) * scale * 10) );
    rect(i*scale, 0, scale, height);
  }
}

>>

Taken from [[basic/milliseconds.html|http://ejohn.org/apps/processing.js/examples/basic/milliseconds.html]]
The modulo operator (%) returns the remainder of a number divided by another. As in this example, it is often used to keep numerical values within a set range. Created 12 January 2003.

<<Processing 

int num = 20;
float c;

void setup()
{
  size(200,200);
  fill(255);
  frameRate(30);
}

void draw() 
{ 
  background(0);
  c+=0.1;
  for(int i=1; i<height/num; i++) { 
    float x = (c%i)*i*i;
    stroke(102);
    line(0, i*num, x, i*num);
    noStroke();
    rect(x, i*num-num/2, 8, num);
  } 
}

>>

Taken from [[basic/modulo.html|http://ejohn.org/apps/processing.js/examples/basic/modulo.html]]
Move the mouse left and right to shift the balance. The "mouseX" variable is used to control both the size and color of the rectangles.

<<Processing 

int gx = 15;
int gy = 35;
float leftColor = 0.0;
float rightColor = 0.0;

void setup() 
{
  size(200, 200);
  colorMode(RGB, 1.0);
  noStroke();
}

void draw() 
{
  background(0.0);
  update(mouseX); 
  fill(0.0, leftColor + 0.4, leftColor + 0.6); 
  rect(width/4-gx, width/2-gx, gx*2, gx*2); 
  fill(0.0, rightColor + 0.2, rightColor + 0.4); 
  rect(width/1.33-gy, width/2-gy, gy*2, gy*2);
}

void update(int x) 
{
  leftColor = -0.002 * x/2 + 0.06;
  rightColor =  0.002 * x/2 + 0.06;
	
  gx = x/2;
  gy = 100-x/2;

  if (gx < 10) {
    gx = 10;
  } else if (gx > 90) {
    gx = 90;
  }

  if (gy > 90) {
    gy = 90;
  } else if (gy < 10) {
    gy = 10;
  }
}

>>

Taken from [[basic/mouse1d.html|http://ejohn.org/apps/processing.js/examples/basic/mouse1d.html]]
Moving the mouse changes the position and size of each box.

<<Processing 

void setup() 
{
  size(200, 200); 
  noStroke();
  colorMode(RGB, 255, 255, 255, 100);
  rectMode(CENTER);
}

void draw() 
{   
  background(51); 
  fill(255, 80);
  rect(mouseX, height/2, mouseY/2+10, mouseY/2+10);
  fill(255, 80);
  rect(width-mouseX, height/2, ((height-mouseY)/2)+10, ((height-mouseY)/2)+10);
}

>>

Taken from [[basic/mouse2d.html|http://ejohn.org/apps/processing.js/examples/basic/mouse2d.html]]
Name: MptwBlack
Background: #000
Foreground: #fff
PrimaryPale: #333
PrimaryLight: #555
PrimaryMid: #888
PrimaryDark: #aaa
SecondaryPale: #111
SecondaryLight: #222
SecondaryMid: #555
SecondaryDark: #888
TertiaryPale: #222
TertiaryLight: #666
TertiaryMid: #888
TertiaryDark: #aaa
Error: #300

This is in progress. Help appreciated.


Name: MptwBlue
Background: #fff
Foreground: #000
PrimaryPale: #cdf
PrimaryLight: #57c
PrimaryMid: #114
PrimaryDark: #012
SecondaryPale: #ffc
SecondaryLight: #fe8
SecondaryMid: #db4
SecondaryDark: #841
TertiaryPale: #eee
TertiaryLight: #ccc
TertiaryMid: #999
TertiaryDark: #666
Error: #f88

/***
|Name:|MptwConfigPlugin|
|Description:|Miscellaneous tweaks used by MPTW|
|Version:|1.0 ($Rev: 3646 $)|
|Date:|$Date: 2008-02-27 02:34:38 +1000 (Wed, 27 Feb 2008) $|
|Source:|http://mptw.tiddlyspot.com/#MptwConfigPlugin|
|Author:|Simon Baird <simon.baird@gmail.com>|
|License:|http://mptw.tiddlyspot.com/#MptwConfigPlugin|
!!Note: instead of editing this you should put overrides in MptwUserConfigPlugin
***/
//{{{
var originalReadOnly = readOnly;

config.options.chkHttpReadOnly = false; 		// means web visitors can experiment with your site by clicking edit
readOnly = false;								// needed because the above doesn't work any more post 2.1 (??)

config.options.chkInsertTabs = true;    		// tab inserts a tab when editing a tiddler
config.views.wikified.defaultText = "";			// don't need message when a tiddler doesn't exist
config.views.editor.defaultText = "";			// don't need message when creating a new tiddler 

config.options.chkSaveBackups = true;			// do save backups
config.options.txtBackupFolder = 'twbackup';	// put backups in a backups folder

config.options.chkAutoSave = (window.location.protocol == "file:"); // do autosave if we're in local file

config.mptwVersion = "2.4.1";

config.macros.mptwVersion={handler:function(place){wikify(config.mptwVersion,place);}};

if (config.options.txtTheme == '')
	config.options.txtTheme = 'MptwTheme';

// add to default GettingStarted
config.shadowTiddlers.GettingStarted += "\n\nSee also [[MPTW]].";

// add select theme and palette controls in default OptionsPanel
config.shadowTiddlers.OptionsPanel = config.shadowTiddlers.OptionsPanel.replace(/(\n\-\-\-\-\nAlso see AdvancedOptions)/, "{{select{<<selectTheme>>\n<<selectPalette>>}}}$1");

// these are used by ViewTemplate
config.mptwDateFormat = 'DD/MM/YY';
config.mptwJournalFormat = 'Journal DD/MM/YY';

//}}}
Name: MptwGreen
Background: #fff
Foreground: #000
PrimaryPale: #9b9
PrimaryLight: #385
PrimaryMid: #031
PrimaryDark: #020
SecondaryPale: #ffc
SecondaryLight: #fe8
SecondaryMid: #db4
SecondaryDark: #841
TertiaryPale: #eee
TertiaryLight: #ccc
TertiaryMid: #999
TertiaryDark: #666
Error: #f88

Name: MptwRed
Background: #fff
Foreground: #000
PrimaryPale: #eaa
PrimaryLight: #c55
PrimaryMid: #711
PrimaryDark: #500
SecondaryPale: #ffc
SecondaryLight: #fe8
SecondaryMid: #db4
SecondaryDark: #841
TertiaryPale: #eee
TertiaryLight: #ccc
TertiaryMid: #999
TertiaryDark: #666
Error: #f88

|Name|MptwRounded|
|Description|Mptw Theme with some rounded corners (Firefox only)|
|ViewTemplate|MptwTheme##ViewTemplate|
|EditTemplate|MptwTheme##EditTemplate|
|PageTemplate|MptwTheme##PageTemplate|
|StyleSheet|##StyleSheet|

!StyleSheet
/*{{{*/

[[MptwTheme##StyleSheet]]

.tiddler,
.sliderPanel,
.button,
.tiddlyLink,
.tabContents
{ -moz-border-radius: 1em; }

.tab {
	-moz-border-radius-topleft: 0.5em;
	-moz-border-radius-topright: 0.5em;
}
#topMenu {
	-moz-border-radius-bottomleft: 2em;
	-moz-border-radius-bottomright: 2em;
}

/*}}}*/

Name: MptwSmoke
Background: #fff
Foreground: #000
PrimaryPale: #aaa
PrimaryLight: #777
PrimaryMid: #111
PrimaryDark: #000
SecondaryPale: #ffc
SecondaryLight: #fe8
SecondaryMid: #db4
SecondaryDark: #841
TertiaryPale: #eee
TertiaryLight: #ccc
TertiaryMid: #999
TertiaryDark: #666
Error: #f88

|Name|MptwStandard|
|Description|Mptw Theme with the default TiddlyWiki PageLayout and Styles|
|ViewTemplate|MptwTheme##ViewTemplate|
|EditTemplate|MptwTheme##EditTemplate|
Name: MptwTeal
Background: #fff
Foreground: #000
PrimaryPale: #B5D1DF
PrimaryLight: #618FA9
PrimaryMid: #1a3844
PrimaryDark: #000
SecondaryPale: #ffc
SecondaryLight: #fe8
SecondaryMid: #db4
SecondaryDark: #841
TertiaryPale: #f8f8f8
TertiaryLight: #bbb
TertiaryMid: #999
TertiaryDark: #888
Error: #f88
|Name|MptwTheme|
|Description|Mptw Theme including custom PageLayout|
|PageTemplate|MptwTheme##PageTemplate|
|ViewTemplate|MptwTheme##ViewTemplate|
|EditTemplate|MptwTheme##EditTemplate|
|StyleSheet|MptwTheme##StyleSheet|

http://mptw.tiddlyspot.com/#MptwTheme ($Rev: 1829 $)

!PageTemplate
<!--{{{-->
<div class='header' macro='gradient vert [[ColorPalette::PrimaryLight]] [[ColorPalette::PrimaryMid]]'>
	<div class='headerShadow'>
		<span class='siteTitle' refresh='content' tiddler='SiteTitle'></span>&nbsp;
		<span class='siteSubtitle' refresh='content' tiddler='SiteSubtitle'></span>
	</div>
	<div class='headerForeground'>
		<span class='siteTitle' refresh='content' tiddler='SiteTitle'></span>&nbsp;
		<span class='siteSubtitle' refresh='content' tiddler='SiteSubtitle'></span>
	</div>
</div>
<!-- horizontal MainMenu -->
<div id='topMenu' refresh='content' tiddler='MainMenu'></div>
<!-- original MainMenu menu -->
<!-- <div id='mainMenu' refresh='content' tiddler='MainMenu'></div> -->
<div id='sidebar'>
	<div id='sidebarOptions' refresh='content' tiddler='SideBarOptions'></div>
	<div id='sidebarTabs' refresh='content' force='true' tiddler='SideBarTabs'></div>
</div>
<div id='displayArea'>
	<div id='messageArea'></div>
	<div id='tiddlerDisplay'></div>
</div>
<!--}}}-->

!ViewTemplate
<!--{{{-->
[[MptwTheme##ViewTemplateToolbar]]

<div class="tagglyTagged" macro="tags"></div>

<div class='titleContainer'>
	<span class='title' macro='view title'></span>
	<span macro="miniTag"></span>
</div>

<div class='subtitle'>
	(updated <span macro='view modified date {{config.mptwDateFormat?config.mptwDateFormat:"MM/0DD/YY"}}'></span>
	by <span macro='view modifier link'></span>)
	<!--
	(<span macro='message views.wikified.createdPrompt'></span>
	<span macro='view created date {{config.mptwDateFormat?config.mptwDateFormat:"MM/0DD/YY"}}'></span>)
	-->
</div>

<div macro="showWhenTagged processing">
	<div class='viewer' macro='view text processing'></div>
</div>
<div macro="else">
 <div macro="showWhen tiddler.tags.containsAny(['css','html','pre','systemConfig']) && !tiddler.text.match('{{'+'{')">
	<div class='viewer'><pre macro='view text'></pre></div>
 </div>
 <div macro="else">
	<div class='viewer' macro='view text wikified'></div>
 </div>
</div>

<div class="tagglyTagging" macro="tagglyTagging"></div>

<!--}}}-->

!ViewTemplateToolbar
<!--{{{-->
<div class='toolbar'>
	<span macro="showWhenTagged systemConfig">
		<span macro="toggleTag systemConfigDisable . '[[disable|systemConfigDisable]]'"></span>
	</span>
	<span macro="showWhenTagged systemTheme"><span macro="applyTheme"></span></span>
	<span macro="showWhenTagged systemPalette"><span macro="applyPalette"></span></span>
	<span macro="showWhen tiddler.tags.contains('css') || tiddler.title == 'StyleSheet'"><span macro="refreshAll"></span></span>
	<span style="padding:1em;"></span>
	<span macro='toolbar closeTiddler closeOthers +editTiddler deleteTiddler refresh > fields syncing permalink references jump'></span> <span macro='newHere label:"new here"'></span>
	<span macro='newJournalHere {{config.mptwJournalFormat?config.mptwJournalFormat:"MM/0DD/YY"}}'></span>
</div>
<!--}}}-->

!EditTemplate
<!--{{{-->
<div class="toolbar" macro="toolbar +saveTiddler saveCloseTiddler closeOthers -cancelTiddler cancelCloseTiddler deleteTiddler"></div>
<div class="title" macro="view title"></div>
<div class="editLabel">Title</div><div class="editor" macro="edit title"></div>
<div macro='annotations'></div>
<div macro="showWhenExists EditPanelTemplate">[[EditPanelTemplate]]</div>
<div class="editLabel">Content</div><div class="editor" macro="edit text"></div>
<div class="editLabel">Tags</div><div class="editor" macro="edit tags"></div>
<div class="editorFooter"><span macro="message views.editor.tagPrompt"></span><span macro="tagChooser"></span></div>
<!--}}}-->

!StyleSheet
/*{{{*/

/* a contrasting background so I can see where one tiddler ends and the other begins */
body {
	background: [[ColorPalette::TertiaryLight]];
}

/* sexy colours and font for the header */
.headerForeground {
	color: [[ColorPalette::PrimaryPale]];
}
.headerShadow, .headerShadow a {
	color: [[ColorPalette::PrimaryMid]];
}

/* separate the top menu parts */
.headerForeground, .headerShadow {
	padding: 1em 1em 0;
}

.headerForeground, .headerShadow {
	font-family: 'Trebuchet MS' sans-serif;
	font-weight:bold;
}
.headerForeground .siteSubtitle {
	color: [[ColorPalette::PrimaryLight]];
}
.headerShadow .siteSubtitle {
	color: [[ColorPalette::PrimaryMid]];
}

/* make shadow go and down right instead of up and left */
.headerShadow {
	left: 1px;
	top: 1px;
}

/* prefer monospace for editing */
.editor textarea, .editor input {
	font-family: 'Consolas' monospace;
	background-color:[[ColorPalette::TertiaryPale]];
}


/* sexy tiddler titles */
.title {
	font-size: 250%;
	color: [[ColorPalette::PrimaryLight]];
	font-family: 'Trebuchet MS' sans-serif;
}

/* more subtle tiddler subtitle */
.subtitle {
	padding:0px;
	margin:0px;
	padding-left:1em;
	font-size: 90%;
	color: [[ColorPalette::TertiaryMid]];
}
.subtitle .tiddlyLink {
	color: [[ColorPalette::TertiaryMid]];
}

/* a little bit of extra whitespace */
.viewer {
	padding-bottom:3px;
}

/* don't want any background color for headings */
h1,h2,h3,h4,h5,h6 {
	background-color: transparent;
	color: [[ColorPalette::Foreground]];
}

/* give tiddlers 3d style border and explicit background */
.tiddler {
	background: [[ColorPalette::Background]];
	border-right: 2px [[ColorPalette::TertiaryMid]] solid;
	border-bottom: 2px [[ColorPalette::TertiaryMid]] solid;
	margin-bottom: 1em;
	padding:1em 2em 2em 1.5em;
}

/* make options slider look nicer */
#sidebarOptions .sliderPanel {
	border:solid 1px [[ColorPalette::PrimaryLight]];
}

/* the borders look wrong with the body background */
#sidebar .button {
	border-style: none;
}

/* this means you can put line breaks in SidebarOptions for readability */
#sidebarOptions br {
	display:none;
}
/* undo the above in OptionsPanel */
#sidebarOptions .sliderPanel br {
	display:inline;
}

/* horizontal main menu stuff */
#displayArea {
	margin: 1em 15.7em 0em 1em; /* use the freed up space */
}
#topMenu br {
	display: none;
}
#topMenu {
	background: [[ColorPalette::PrimaryMid]];
	color:[[ColorPalette::PrimaryPale]];
}
#topMenu {
	padding:2px;
}
#topMenu .button, #topMenu .tiddlyLink, #topMenu a {
	margin-left: 0.5em;
	margin-right: 0.5em;
	padding-left: 3px;
	padding-right: 3px;
	color: [[ColorPalette::PrimaryPale]];
	font-size: 115%;
}
#topMenu .button:hover, #topMenu .tiddlyLink:hover {
	background: [[ColorPalette::PrimaryDark]];
}

/* make 2.2 act like 2.1 with the invisible buttons */
.toolbar {
	visibility:hidden;
}
.selected .toolbar {
	visibility:visible;
}

/* experimental. this is a little borked in IE7 with the button 
 * borders but worth it I think for the extra screen realestate */
.toolbar { float:right; }

/* fix for TaggerPlugin. from sb56637. improved by FND */
.popup li .tagger a {
   display:inline;
}

/* makes theme selector look a little better */
#sidebarOptions .sliderPanel .select .button {
  padding:0.5em;
  display:block;
}
#sidebarOptions .sliderPanel .select br {
	display:none;
}

/* make it print a little cleaner */
@media print {
	#topMenu {
		display: none ! important;
	}
	/* not sure if we need all the importants */
	.tiddler {
		border-style: none ! important;
		margin:0px ! important;
		padding:0px ! important;
		padding-bottom:2em ! important;
	}
	.tagglyTagging .button, .tagglyTagging .hidebutton {
		display: none ! important;
	}
	.headerShadow {
		visibility: hidden ! important;
	}
	.tagglyTagged .quickopentag, .tagged .quickopentag {
		border-style: none ! important;
	}
	.quickopentag a.button, .miniTag {
		display: none ! important;
	}
}

/* get user styles specified in StyleSheet */
[[StyleSheet]]

/*}}}*/

|Name|MptwTrim|
|Description|Mptw Theme with a reduced header to increase useful space|
|ViewTemplate|MptwTheme##ViewTemplate|
|EditTemplate|MptwTheme##EditTemplate|
|StyleSheet|MptwTheme##StyleSheet|
|PageTemplate|##PageTemplate|

!PageTemplate
<!--{{{-->

<!-- horizontal MainMenu -->
<div id='topMenu' macro='gradient vert [[ColorPalette::PrimaryLight]] [[ColorPalette::PrimaryMid]]'>
<span refresh='content' tiddler='SiteTitle' style="padding-left:1em;font-weight:bold;"></span>:
<span refresh='content' tiddler='MainMenu'></span>
</div>
<div id='sidebar'>
	<div id='sidebarOptions'>
		<div refresh='content' tiddler='SideBarOptions'></div>
		<div style="margin-left:0.1em;"
			macro='slider chkTabSliderPanel SideBarTabs {{"tabs \u00bb"}} "Show Timeline, All, Tags, etc"'></div>
	</div>
</div>
<div id='displayArea'>
	<div id='messageArea'></div>
	<div id='tiddlerDisplay'></div>
</div>

For upgrading. See [[ImportTiddlers]].
URL: http://mptw.tiddlyspot.com/upgrade.html
/***
|Description:|A place to put your config tweaks so they aren't overwritten when you upgrade MPTW|
See http://www.tiddlywiki.org/wiki/Configuration_Options for other options you can set. In some cases where there are clashes with other plugins it might help to rename this to zzMptwUserConfigPlugin so it gets executed last.
***/
//{{{

// example: set your preferred date format
//config.mptwDateFormat = 'MM/0DD/YY';
//config.mptwJournalFormat = 'Journal MM/0DD/YY';

// example: set the theme you want to start with
//config.options.txtTheme = 'MptwRoundTheme';

// example: switch off autosave, switch on backups and set a backup folder
//config.options.chkSaveBackups = true;
//config.options.chkAutoSave = false;
//config.options.txtBackupFolder = 'backups';

//}}}
/***
|Name:|NewHerePlugin|
|Description:|Creates the new here and new journal macros|
|Version:|3.0 ($Rev: 3861 $)|
|Date:|$Date: 2008-03-08 10:53:09 +1000 (Sat, 08 Mar 2008) $|
|Source:|http://mptw.tiddlyspot.com/#NewHerePlugin|
|Author:|Simon Baird <simon.baird@gmail.com>|
|License|http://mptw.tiddlyspot.com/#TheBSDLicense|
***/
//{{{
merge(config.macros, {
	newHere: {
		handler: function(place,macroName,params,wikifier,paramString,tiddler) {
			wikify("<<newTiddler "+paramString+" tag:[["+tiddler.title+"]]>>",place,null,tiddler);
		}
	},
	newJournalHere: {
		handler: function(place,macroName,params,wikifier,paramString,tiddler) {
			wikify("<<newJournal "+paramString+" tag:[["+tiddler.title+"]]>>",place,null,tiddler);
		}
	}
});

//}}}

/***
|Name:|NewMeansNewPlugin|
|Description:|If 'New Tiddler' already exists then create 'New Tiddler (1)' and so on|
|Version:|1.1 ($Rev: 2263 $)|
|Date:|$Date: 2007-06-13 04:22:32 +1000 (Wed, 13 Jun 2007) $|
|Source:|http://mptw.tiddlyspot.com/empty.html#NewMeansNewPlugin|
|Author:|Simon Baird <simon.baird@gmail.com>|
|License|http://mptw.tiddlyspot.com/#TheBSDLicense|
!!Note: I think this should be in the core
***/
//{{{

String.prototype.getNextFreeName = function() {
       var numberRegExp = / \(([0-9]+)\)$/;
       var match = numberRegExp.exec(this);
       if (match) {
               var num = parseInt(match[1]) + 1;
               return this.replace(numberRegExp," ("+num+")");
       }
       else {
               return this + " (1)";
       }
}

config.macros.newTiddler.checkForUnsaved = function(newName) {
	var r = false;
	story.forEachTiddler(function(title,element) {
		if (title == newName)
			r = true;
	});
	return r;
}

config.macros.newTiddler.getName = function(newName) {
       while (store.getTiddler(newName) || config.macros.newTiddler.checkForUnsaved(newName))
               newName = newName.getNextFreeName();
       return newName;
}


config.macros.newTiddler.onClickNewTiddler = function()
{
	var title = this.getAttribute("newTitle");
	if(this.getAttribute("isJournal") == "true") {
		var now = new Date();
		title = now.formatString(title.trim());
	}

	title = config.macros.newTiddler.getName(title); // <--- only changed bit

	var params = this.getAttribute("params");
	var tags = params ? params.split("|") : [];
	var focus = this.getAttribute("newFocus");
	var template = this.getAttribute("newTemplate");
	var customFields = this.getAttribute("customFields");
	story.displayTiddler(null,title,template,false,null,null);
	var tiddlerElem = document.getElementById(story.idPrefix + title);
	if(customFields)
		story.addCustomFields(tiddlerElem,customFields);
	var text = this.getAttribute("newText");
	if(typeof text == "string")
		story.getTiddlerField(title,"text").value = text.format([title]);
	for(var t=0;t<tags.length;t++)
		story.setTiddlerTag(title,tags[t],+1);
	story.focusTiddler(title,focus);
	return false;
};

//}}}

/***
|Name:|PrettyDatesPlugin|
|Description:|Provides a new date format ('pppp') that displays times such as '2 days ago'|
|Version:|1.0 ($Rev: 3646 $)|
|Date:|$Date: 2008-02-27 02:34:38 +1000 (Wed, 27 Feb 2008) $|
|Source:|http://mptw.tiddlyspot.com/#PrettyDatesPlugin|
|Author:|Simon Baird <simon.baird@gmail.com>|
|License:|http://mptw.tiddlyspot.com/#TheBSDLicense|
!!Notes
* If you want to you can rename this plugin. :) Some suggestions: LastUpdatedPlugin, RelativeDatesPlugin, SmartDatesPlugin, SexyDatesPlugin.
* Inspired by http://ejohn.org/files/pretty.js
***/
//{{{
Date.prototype.prettyDate = function() {
	var diff = (((new Date()).getTime() - this.getTime()) / 1000);
	var day_diff = Math.floor(diff / 86400);

	if (isNaN(day_diff))      return "";
	else if (diff < 0)        return "in the future";
	else if (diff < 60)       return "just now";
	else if (diff < 120)      return "1 minute ago";
	else if (diff < 3600)     return Math.floor(diff/60) + " minutes ago";
	else if (diff < 7200)     return "1 hour ago";
	else if (diff < 86400)    return Math.floor(diff/3600) + " hours ago";
	else if (day_diff == 1)   return "Yesterday";
	else if (day_diff < 7)    return day_diff + " days ago";
	else if (day_diff < 14)   return  "a week ago";
	else if (day_diff < 31)   return Math.ceil(day_diff/7) + " weeks ago";
	else if (day_diff < 62)   return "a month ago";
	else if (day_diff < 365)  return "about " + Math.ceil(day_diff/31) + " months ago";
	else if (day_diff < 730)  return "a year ago";
	else                      return Math.ceil(day_diff/365) + " years ago";
}

Date.prototype.formatString_orig_mptw = Date.prototype.formatString;

Date.prototype.formatString = function(template) {
	return this.formatString_orig_mptw(template).replace(/pppp/,this.prettyDate());
}

// for MPTW. otherwise edit your ViewTemplate as required.
// config.mptwDateFormat = 'pppp (DD/MM/YY)'; 
config.mptwDateFormat = 'pppp'; 

//}}}

I've just picked out a few since some examples are too slow and some don't work. If you want to see every example from the Processing.js examples (which were in turn taken from the Processing examples) [[go here|http://whatfettle.com/2008/05/TiddlyProcessing/#BasicExample]].
/***
|''Name:''|ProcessingPlugin|
|''Description:''|TiddlyWiki Bundle of John Ressig's processing.js|
|''Date:''|May 9, 2008|
|''Author:''|PaulDowney (psd (at) osmosoft (dot) com)|
|''CodeRepository:''|http://svn.tiddlywiki.org/Trunk/contributors/PaulDowney/plugins/ProcessingPlugin.js|
|''Version:''|0.2|
|''License:''|[[MIT license]]|
|''Comments:''|Please make comments at http://groups.google.co.uk/group/TiddlyWikiDev |
|''~CoreVersion:''|2.2|

With contributions from Simon Baird.

***/

//{{{

// Ensure Plugin is only installed once.
if(!version.extensions.Processingjs) {
version.extensions.Processingjs = {installed:true};

config.macros.Processing = {
	counter: 0,
	handler: function (place,macroName,params,wikifier,paramString,tiddler) {
		var id = "processingcanvas"+this.counter;
		var canvas = createTiddlyElement(place,"canvas",id);

		// inlined code
		var code = paramString;

		// quick and dirty grab of code from a named tiddler
		if (store.tiddlerExists(params[0])) {
			code = store.getTiddlerText(params[0]);
		}

		// or with no params, grab code from this tiddler
		if (paramString.trim() == '') {
			code = tiddler.text;
		}

		createTiddlyElement(place,"br");
		var restartBtn = createTiddlyButton(place,"restart","restart",function() {
				story.refreshTiddler(tiddler.title,null,true);
				return false;
			},
			'processingRestart' // it's a class so you can style the button
		);

		Processing(canvas,code);
	}
};

// requires 2.4
merge(config.macros.view.views,{
	processing: function(value,place,params,wikifier,paramString,tiddler) {
		wikify("<<Processing\n"+value+"\n>>",place,highlightHack,tiddler);
	}
});

/*
 *  inlined copy of Processing.js
 *  latest code at: http://ejohn.org/blog/processingjs/
 */

/*
 * Processing.js - John Resig (http://ejohn.org/)
 * MIT Licensed
 * http://ejohn.org/blog/processingjs/
 *
 * This is a port of the Processing Visualization Language.
 * More information: http://processing.org/
 */

(function(){

this.Processing = function Processing( aElement, aCode )
{
  var p = buildProcessing( aElement );
  p.init( aCode );
  return p;
};

function log()
{
  try
  {
    console.log.apply( console, arguments );
  }
  catch(e)
  {
    try
    {
      opera.postError.apply( opera, arguments );
    }
    catch(e){}
  }
}

function parse( aCode, p )
{
  // Angels weep at this parsing code :-(

  // Remove end-of-line comments
  aCode = aCode.replace(/\/\/ .*\n/g, "\n");

  // Weird parsing errors with %
  aCode = aCode.replace(/([^\s])%([^\s])/g, "$1 % $2");
 
  // Simple convert a function-like thing to function
  aCode = aCode.replace(/(?:static )?(\w+ )(\w+)\s*(\([^\)]*\)\s*{)/g, function(all, type, name, args)
  {
    if ( name == "if" || name == "for" || name == "while" )
    {
      return all;
    }
    else
    {
      return "Processing." + name + " = function " + name + args;
    }
  });

  // Force .length() to be .length
  aCode = aCode.replace(/\.length\(\)/g, ".length");

  // foo( int foo, float bar )
  aCode = aCode.replace(/([\(,]\s*)(\w+)((?:\[\])+| )\s*(\w+\s*[\),])/g, "$1$4");
  aCode = aCode.replace(/([\(,]\s*)(\w+)((?:\[\])+| )\s*(\w+\s*[\),])/g, "$1$4");

  // float[] foo = new float[5];
  aCode = aCode.replace(/new (\w+)((?:\[([^\]]*)\])+)/g, function(all, name, args)
  {
    return "new ArrayList(" + args.slice(1,-1).split("][").join(", ") + ")";
  });
  
  aCode = aCode.replace(/(?:static )?\w+\[\]\s*(\w+)\[?\]?\s*=\s*{.*?};/g, function(all)
  {
    return all.replace(/{/g, "[").replace(/}/g, "]");
  });

  // int|float foo;
  var intFloat = /(\n\s*(?:int|float)(?:\[\])?(?:\s*|[^\(]*?,\s*))([a-z]\w*)(;|,)/i;
  while ( intFloat.test(aCode) )
  {
    aCode = aCode.replace(new RegExp(intFloat), function(all, type, name, sep)
    {
      return type + " " + name + " = 0" + sep;
    });
  }

  // float foo = 5;
  aCode = aCode.replace(/(?:static )?(\w+)((?:\[\])+| ) *(\w+)\[?\]?(\s*[=,;])/g, function(all, type, arr, name, sep)
  {
    if ( type == "return" )
      return all;
    else
      return "var " + name + sep;
  });

  // Fix Array[] foo = {...} to [...]
  aCode = aCode.replace(/=\s*{((.|\s)*?)};/g, function(all,data)
  {
    return "= [" + data.replace(/{/g, "[").replace(/}/g, "]") + "]";
  });
  
  // static { ... } blocks
  aCode = aCode.replace(/static\s*{((.|\n)*?)}/g, function(all, init)
  {
    // Convert the static definitons to variable assignments
    //return init.replace(/\((.*?)\)/g, " = $1");
    return init;
  });

  // super() is a reserved word
  aCode = aCode.replace(/super\(/g, "superMethod(");

  var classes = ["int", "float", "boolean", "string"];

  function ClassReplace(all, name, extend, vars, last)
  {
    classes.push( name );

    var static = "";

    vars = vars.replace(/final\s+var\s+(\w+\s*=\s*.*?;)/g, function(all,set)
    {
      static += " " + name + "." + set;
      return "";
    });

    // Move arguments up from constructor and wrap contents with
    // a with(this), and unwrap constructor
    return "function " + name + "() {with(this){\n  " +
      (extend ? "var __self=this;function superMethod(){extendClass(__self,arguments," + extend + ");}\n" : "") +
      // Replace var foo = 0; with this.foo = 0;
      // and force var foo; to become this.foo = null;
      vars
        .replace(/,\s?/g, ";\n  this.")
        .replace(/\b(var |final |public )+\s*/g, "this.")
        .replace(/this.(\w+);/g, "this.$1 = null;") + 
	(extend ? "extendClass(this, " + extend + ");\n" : "") +
        "<CLASS " + name + " " + static + ">" + (typeof last == "string" ? last : name + "(");
  }

  var matchClasses = /(?:public |abstract |static )*class (\w+)\s*(?:extends\s*(\w+)\s*)?{\s*((?:.|\n)*?)\b\1\s*\(/g;
  var matchNoCon = /(?:public |abstract |static )*class (\w+)\s*(?:extends\s*(\w+)\s*)?{\s*((?:.|\n)*?)(Processing)/g;
  
  aCode = aCode.replace(matchClasses, ClassReplace);
  aCode = aCode.replace(matchNoCon, ClassReplace);

  var matchClass = /<CLASS (\w+) (.*?)>/, m;
  
  while ( (m = aCode.match( matchClass )) )
  {
    var left = RegExp.leftContext,
      allRest = RegExp.rightContext,
      rest = nextBrace(allRest),
      className = m[1],
      staticVars = m[2] || "";
      
    allRest = allRest.slice( rest.length + 1 );

    rest = rest.replace(new RegExp("\\b" + className + "\\(([^\\)]*?)\\)\\s*{", "g"), function(all, args)
    {
      args = args.split(/,\s*?/);
      
      if ( args[0].match(/^\s*$/) )
        args.shift();
      
      var fn = "if ( arguments.length == " + args.length + " ) {\n";
        
      for ( var i = 0; i < args.length; i++ )
      {
        fn += "    var " + args[i] + " = arguments[" + i + "];\n";
      }
        
      return fn;
    });
    
    // Fix class method names
    // this.collide = function() { ... }
    // and add closing } for with(this) ...
    rest = rest.replace(/(?:public )?Processing.\w+ = function (\w+)\((.*?)\)/g, function(all, name, args)
    {
      return "ADDMETHOD(this, '" + name + "', function(" + args + ")";
    });
    
    var matchMethod = /ADDMETHOD([\s\S]*?{)/, mc;
    var methods = "";
    
    while ( (mc = rest.match( matchMethod )) )
    {
      var prev = RegExp.leftContext,
        allNext = RegExp.rightContext,
        next = nextBrace(allNext);

      methods += "addMethod" + mc[1] + next + "});"
      
      rest = prev + allNext.slice( next.length + 1 );
      
    }

    rest = methods + rest;
    
    aCode = left + rest + "\n}}" + staticVars + allRest;
  }

  // Do some tidying up, where necessary
  aCode = aCode.replace(/Processing.\w+ = function addMethod/g, "addMethod");
  
  function nextBrace( right )
  {
    var rest = right;
    var position = 0;
    var leftCount = 1, rightCount = 0;
    
    while ( leftCount != rightCount )
    {
      var nextLeft = rest.indexOf("{");
      var nextRight = rest.indexOf("}");
      
      if ( nextLeft < nextRight && nextLeft != -1 )
      {
        leftCount++;
        rest = rest.slice( nextLeft + 1 );
        position += nextLeft + 1;
      }
      else
      {
        rightCount++;
        rest = rest.slice( nextRight + 1 );
        position += nextRight + 1;
      }
    }
    
    return right.slice(0, position - 1);
  }

  // Handle (int) Casting
  aCode = aCode.replace(/\(int\)/g, "0|");

  // Remove Casting
  aCode = aCode.replace(new RegExp("\\((" + classes.join("|") + ")(\\[\\])?\\)", "g"), "");
  
  // Convert 3.0f to just 3.0
  aCode = aCode.replace(/(\d+)f/g, "$1");

  // Force numbers to exist
  //aCode = aCode.replace(/([^.])(\w+)\s*\+=/g, "$1$2 = ($2||0) +");

  // Force characters-as-bytes to work
  aCode = aCode.replace(/('[a-zA-Z0-9]')/g, "$1.charCodeAt(0)");

  // Convert #aaaaaa into color
  aCode = aCode.replace(/#([a-f0-9]{6})/ig, function(m, hex){
    var num = toNumbers(hex);
    return "color(" + num[0] + "," + num[1] + "," + num[2] + ")";
  });

  function toNumbers( str ){
    var ret = [];
     str.replace(/(..)/g, function(str){
      ret.push( parseInt( str, 16 ) );
    });
    return ret;
  }

//log(aCode);

  return aCode;
}

function buildProcessing( curElement ){

  var p = {};

  // init
  p.PI = Math.PI;
  p.TWO_PI = 2 * p.PI;
  p.HALF_PI = p.PI / 2;
  p.P3D = 3;
  p.CORNER = 0;
  p.CENTER = 1;
  p.CENTER_RADIUS = 2;
  p.RADIUS = 2;
  p.POLYGON = 1;
  p.TRIANGLES = 6;
  p.POINTS = 7;
  p.LINES = 8;
  p.TRIANGLE_STRIP = 9;
  p.CORNERS = 10;
  p.CLOSE = true;
  p.RGB = 1;
  p.HSB = 2;

  // "Private" variables used to maintain state
  var curContext = curElement.getContext("2d");
  var doFill = true;
  var doStroke = true;
  var loopStarted = false;
  var hasBackground = false;
  var doLoop = true;
  var curRectMode = p.CORNER;
  var curEllipseMode = p.CENTER;
  var inSetup = false;
  var inDraw = false;
  var curBackground = "rgba(204,204,204,1)";
  var curFrameRate = 1000;
  var curShape = p.POLYGON;
  var curShapeCount = 0;
  var opacityRange = 255;
  var redRange = 255;
  var greenRange = 255;
  var blueRange = 255;
  var pathOpen = false;
  var mousePressed = false;
  var keyPressed = false;
  var firstX, firstY, prevX, prevY;
  var curColorMode = p.RGB;
  var curTint = -1;
  var curTextSize = 12;
  var curTextFont = "Arial";
  var getLoaded = false;
  var start = (new Date).getTime();

  // Global vars for tracking mouse position
  p.pmouseX = 0;
  p.pmouseY = 0;
  p.mouseX = 0;
  p.mouseY = 0;

  // Will be replaced by the user, most likely
  p.mouseDragged = undefined;
  p.mouseMoved = undefined;
  p.mousePressed = undefined;
  p.mouseReleased = undefined;
  p.keyPressed = undefined;
  p.keyReleased = undefined;
  p.draw = undefined;
  p.setup = undefined;

  // The height/width of the canvas
  p.width = curElement.width - 0;
  p.height = curElement.height - 0;
  
  // In case I ever need to do HSV conversion:
  // http://srufaculty.sru.edu/david.dailey/javascript/js/5rml.js
  p.color = function color( aValue1, aValue2, aValue3, aValue4 )
  {
    var aColor = "";
    
    if ( arguments.length == 3 )
    {
      aColor = p.color( aValue1, aValue2, aValue3, opacityRange );
    }
    else if ( arguments.length == 4 )
    {
      var a = aValue4 / opacityRange;
      a = isNaN(a) ? 1 : a;

      if ( curColorMode == p.HSB )
      {
        var rgb = HSBtoRGB(aValue1, aValue2, aValue3);
        var r = rgb[0], g = rgb[1], b = rgb[2];
      }
      else
      {
        var r = getColor(aValue1, redRange);
        var g = getColor(aValue2, greenRange);
        var b = getColor(aValue3, blueRange);
      }

      aColor = "rgba(" + r + "," + g + "," + b + "," + a + ")";
    }
    else if ( typeof aValue1 == "string" )
    {
      aColor = aValue1;

      if ( arguments.length == 2 )
      {
        var c = aColor.split(",");
	c[3] = (aValue2 / opacityRange) + ")";
	aColor = c.join(",");
      }
    }
    else if ( arguments.length == 2 )
    {
      aColor = p.color( aValue1, aValue1, aValue1, aValue2 );
    }
    else if ( typeof aValue1 == "number" )
    {
      aColor = p.color( aValue1, aValue1, aValue1, opacityRange );
    }
    else
    {
      aColor = p.color( redRange, greenRange, blueRange, opacityRange );
    }

    // HSB conversion function from Mootools, MIT Licensed
    function HSBtoRGB(h, s, b)
    {
      h = (h / redRange) * 100;
      s = (s / greenRange) * 100;
      b = (b / blueRange) * 100;
      if (s == 0){
        return [b, b, b];
      } else {
        var hue = h % 360;
        var f = hue % 60;
        var br = Math.round(b / 100 * 255);
        var p = Math.round((b * (100 - s)) / 10000 * 255);
        var q = Math.round((b * (6000 - s * f)) / 600000 * 255);
        var t = Math.round((b * (6000 - s * (60 - f))) / 600000 * 255);
        switch (Math.floor(hue / 60)){
          case 0: return [br, t, p];
          case 1: return [q, br, p];
          case 2: return [p, br, t];
          case 3: return [p, q, br];
          case 4: return [t, p, br];
          case 5: return [br, p, q];
        }
      }
    }

    function getColor( aValue, range )
    {
      return Math.round(255 * (aValue / range));
    }
    
    return aColor;
  }

  p.nf = function( num, pad )
  {
    var str = "" + num;
    while ( pad - str.length )
      str = "0" + str;
    return str;
  };

  p.AniSprite = function( prefix, frames )
  {
    this.images = [];
    this.pos = 0;

    for ( var i = 0; i < frames; i++ )
    {
      this.images.push( prefix + p.nf( i, ("" + frames).length ) + ".gif" );
    }

    this.display = function( x, y )
    {
      p.image( this.images[ this.pos ], x, y );

      if ( ++this.pos >= frames )
        this.pos = 0;
    };

    this.getWidth = function()
    {
      return getImage(this.images[0]).width;
    };

    this.getHeight = function()
    {
      return getImage(this.images[0]).height;
    };
  };

  function buildImageObject( obj )
  {
    var pixels = obj.data;
    var data = p.createImage( obj.width, obj.height );

    if ( data.__defineGetter__ && data.__lookupGetter__ && !data.__lookupGetter__("pixels") )
    {
      var pixelsDone;
      data.__defineGetter__("pixels", function()
      {
        if ( pixelsDone )
	  return pixelsDone;

	pixelsDone = [];

        for ( var i = 0; i < pixels.length; i += 4 )
        {
          pixelsDone.push( p.color(pixels[i], pixels[i+1], pixels[i+2], pixels[i+3]) );
        }

	return pixelsDone;
      });
    }
    else
    {
      data.pixels = [];

      for ( var i = 0; i < pixels.length; i += 4 )
      {
        data.pixels.push( p.color(pixels[i], pixels[i+1], pixels[i+2], pixels[i+3]) );
      }
    }

    return data;
  }

  p.createImage = function createImage( w, h, mode )
  {
    var data = {
      width: w,
      height: h,
      pixels: new Array( w * h ),
      get: function(x,y)
      {
        return this.pixels[w*y+x];
      },
      _mask: null,
      mask: function(img)
      {
        this._mask = img;
      },
      loadPixels: function()
      {
      },
      updatePixels: function()
      {
      }
    };

    return data;
  }

  p.createGraphics = function createGraphics( w, h )
  {
    var canvas = document.createElement("canvas");
    var ret = buildProcessing( canvas );
    ret.size( w, h );
    ret.canvas = canvas;
    return ret;
  }

  p.beginDraw = function beginDraw()
  {

  }

  p.endDraw = function endDraw()
  {

  }

  p.tint = function tint( rgb, a )
  {
    curTint = a;
  }

  function getImage( img ) {
    if ( typeof img == "string" )
    {
      return document.getElementById(img);
    }

    if ( img.img || img.canvas )
    {
      return img.img || img.canvas;
    }

    img.data = [];

    for ( var i = 0, l = img.pixels.length; i < l; i++ )
    {
      var c = (img.pixels[i] || "rgba(0,0,0,1)").slice(5,-1).split(",");
      img.data.push( parseInt(c[0]), parseInt(c[1]), parseInt(c[2]), parseFloat(c[3]) * 100 );
    }

    var canvas = document.createElement("canvas")
    canvas.width = img.width;
    canvas.height = img.height;
    var context = canvas.getContext("2d");
    context.putImageData( img, 0, 0 );

    img.canvas = canvas;

    return canvas;
  }

  p.image = function image( img, x, y, w, h )
  {
    x = x || 0;
    y = y || 0;

    var obj = getImage(img);

    if ( curTint >= 0 )
    {
      var oldAlpha = curContext.globalAlpha;
      curContext.globalAlpha = curTint / opacityRange;
    }

    if ( arguments.length == 3 )
    {
      curContext.drawImage( obj, x, y );
    }
    else
    {
      curContext.drawImage( obj, x, y, w, h );
    }

    if ( curTint >= 0 )
    {
      curContext.globalAlpha = oldAlpha;
    }

    if ( img._mask )
    {
      var oldComposite = curContext.globalCompositeOperation;
      curContext.globalCompositeOperation = "darker";
      p.image( img._mask, x, y );
      curContext.globalCompositeOperation = oldComposite;
    }
  }

  p.exit = function exit()
  {

  }

  p.save = function save( file )
  {

  }

  p.loadImage = function loadImage( file )
  {
    var img = document.getElementById(file);
    if ( !img )
      return;

    var h = img.height, w = img.width;

    var canvas = document.createElement("canvas");
    canvas.width = w;
    canvas.height = h;
    var context = canvas.getContext("2d");

    context.drawImage( img, 0, 0 );
    var data = buildImageObject( context.getImageData( 0, 0, w, h ) );
    data.img = img;
    return data;
  }

  p.loadFont = function loadFont( name )
  {
    return {
      name: name,
      width: function( str )
      {
        if ( curContext.mozMeasureText )
          return curContext.mozMeasureText( typeof str == "number" ?
            String.fromCharCode( str ) :
            str) / curTextSize;
	else
	  return 0;
      }
    };
  }

  p.textFont = function textFont( name, size )
  {
    curTextFont = name;
    p.textSize( size );
  }

  p.textSize = function textSize( size )
  {
    if ( size )
    {
      curTextSize = size;
    }
  }

  p.textAlign = function textAlign()
  {

  }

  p.text = function text( str, x, y )
  {
    if ( str && curContext.mozDrawText )
    {
      curContext.save();
      curContext.mozTextStyle = curTextSize + "px " + curTextFont.name;
      curContext.translate(x, y);
      curContext.mozDrawText( typeof str == "number" ?
        String.fromCharCode( str ) :
	str );
      curContext.restore();
    }
  }

  p.char = function char( key )
  {
    //return String.fromCharCode( key );
    return key;
  }

  p.println = function println()
  {

  }

  p.map = function map( value, istart, istop, ostart, ostop )
  {
    return ostart + (ostop - ostart) * ((value - istart) / (istop - istart));
  };

  String.prototype.replaceAll = function(re, replace)
  {
    return this.replace(new RegExp(re, "g"), replace);
  };

  p.Point = function Point( x, y )
  {
    this.x = x;
    this.y = y;
    this.copy = function()
    {
      return new Point( x, y );
    }
  }

  p.Random = function()
  {
    var haveNextNextGaussian = false;
    var nextNextGaussian;

    this.nextGaussian = function()
    {
      if (haveNextNextGaussian) {
        haveNextNextGaussian = false;

        return nextNextGaussian;
      } else {
        var v1, v2, s;
        do { 
          v1 = 2 * p.random(1) - 1;   // between -1.0 and 1.0
          v2 = 2 * p.random(1) - 1;   // between -1.0 and 1.0
          s = v1 * v1 + v2 * v2;
        } while (s >= 1 || s == 0);
        var multiplier = Math.sqrt(-2 * Math.log(s)/s);
        nextNextGaussian = v2 * multiplier;
        haveNextNextGaussian = true;

        return v1 * multiplier;
      }
    };
  }

  p.ArrayList = function ArrayList( size, size2, size3 )
  {
    var array = new Array( 0 | size );
    
    if ( size2 )
    {
      for ( var i = 0; i < size; i++ )
      {
        array[i] = [];

        for ( var j = 0; j < size2; j++ )
        {
	  var a = array[i][j] = size3 ? new Array( size3 ) : 0;
	  for ( var k = 0; k < size3; k++ )
	  {
	    a[k] = 0;
	  }
        }
      }
    }
    else
    {
      for ( var i = 0; i < size; i++ )
      {
        array[i] = 0;
      }
    }
    
    array.size = function()
    {
      return this.length;
    };
    array.get = function( i )
    {
      return this[ i ];
    };
    array.remove = function( i )
    {
      return this.splice( i, 1 );
    };
    array.add = function( item )
    {
      for ( var i = 0; this[ i ] != undefined; i++ ) {}
      this[ i ] = item;
    };
    array.clone = function()
    {
      var a = new ArrayList( size );
      for ( var i = 0; i < size; i++ )
      {
        a[ i ] = this[ i ];
      }
      return a;
    };
    array.isEmpty = function()
    {
      return !this.length;
    };
    array.clear = function()
    {
      this.length = 0;
    };
    
    return array;
  }
  
  p.colorMode = function colorMode( mode, range1, range2, range3, range4 )
  {
    curColorMode = mode;

    if ( arguments.length >= 4 )
    {
      redRange = range1;
      greenRange = range2;
      blueRange = range3;
    }

    if ( arguments.length == 5 )
    {
      opacityRange = range4;
    }

    if ( arguments.length == 2 )
    {
      p.colorMode( mode, range1, range1, range1, range1 );
    }
  }
  
  p.beginShape = function beginShape( type )
  {
    curShape = type;
    curShapeCount = 0; 
  }
  
  p.endShape = function endShape( close )
  {
    if ( curShapeCount != 0 )
    {
      curContext.lineTo( firstX, firstY );

      if ( doFill )
        curContext.fill();
        
      if ( doStroke )
        curContext.stroke();
    
      curContext.closePath();
      curShapeCount = 0;
      pathOpen = false;
    }

    if ( pathOpen )
    {
      curContext.closePath();
    }
  }
  
  p.vertex = function vertex( x, y, x2, y2, x3, y3 )
  {
    if ( curShapeCount == 0 && curShape != p.POINTS )
    {
      pathOpen = true;
      curContext.beginPath();
      curContext.moveTo( x, y );
    }
    else
    {
      if ( curShape == p.POINTS )
      {
        p.point( x, y );
      }
      else if ( arguments.length == 2 )
      {
        if ( curShape == p.TRIANGLE_STRIP && curShapeCount == 2 )
	{
          curContext.moveTo( prevX, prevY );
          curContext.lineTo( firstX, firstY );
	}

        curContext.lineTo( x, y );
      }
      else if ( arguments.length == 4 )
      {
        if ( curShapeCount > 1 )
        {
	  curContext.moveTo( prevX, prevY );
          curContext.quadraticCurveTo( firstX, firstY, x, y );
	  curShapeCount = 1;
        }
      }
      else if ( arguments.length == 6 )
      {
        curContext.bezierCurveTo( x, y, x2, y2, x3, y3 );
        curShapeCount = -1;
      }
    }

    prevX = firstX;
    prevY = firstY;
    firstX = x;
    firstY = y;

    
    curShapeCount++;
    
    if ( curShape == p.LINES && curShapeCount == 2 ||
         (curShape == p.TRIANGLES || curShape == p.TRIANGLE_STRIP) && curShapeCount == 3 )
    {
      p.endShape();
    }

    if ( curShape == p.TRIANGLE_STRIP && curShapeCount == 3 )
    {
      curShapeCount = 2;
    }
  }

  p.curveTightness = function()
  {

  }

  // Unimplmented - not really possible with the Canvas API
  p.curveVertex = function( x, y, x2, y2 )
  {
    p.vertex( x, y, x2, y2 );
  }

  p.bezierVertex = p.vertex
  
  p.rectMode = function rectMode( aRectMode )
  {
    curRectMode = aRectMode;
  }

  p.imageMode = function()
  {

  }
  
  p.ellipseMode = function ellipseMode( aEllipseMode )
  {
    curEllipseMode = aEllipseMode;
  }
  
  p.dist = function dist( x1, y1, x2, y2 )
  {
    return Math.sqrt( Math.pow( x2 - x1, 2 ) + Math.pow( y2 - y1, 2 ) );
  }

  p.year = function year()
  {
    return (new Date).getYear() + 1900;
  }

  p.month = function month()
  {
    return (new Date).getMonth();
  }

  p.day = function day()
  {
    return (new Date).getDay();
  }

  p.hour = function hour()
  {
    return (new Date).getHours();
  }

  p.minute = function minute()
  {
    return (new Date).getMinutes();
  }

  p.second = function second()
  {
    return (new Date).getSeconds();
  }

  p.millis = function millis()
  {
    return (new Date).getTime() - start;
  }
  
  p.ortho = function ortho()
  {
  
  }
  
  p.translate = function translate( x, y )
  {
    curContext.translate( x, y );
  }
  
  p.scale = function scale( x, y )
  {
    curContext.scale( x, y || x );
  }
  
  p.rotate = function rotate( aAngle )
  {
    curContext.rotate( aAngle );
  }
  
  p.pushMatrix = function pushMatrix()
  {
    curContext.save();
  }
  
  p.popMatrix = function popMatrix()
  {
    curContext.restore();
  }
  
  p.redraw = function redraw()
  {
    if ( hasBackground )
    {
      p.background();
    }
    
    inDraw = true;
    p.pushMatrix();
    p.draw();
    p.popMatrix();
    inDraw = false;
  }
  
  p.loop = function loop()
  {
    if ( loopStarted )
      return;
    
    var looping = setInterval(function()
    {
      try
      {
        p.redraw();
      }
      catch(e)
      {
        clearInterval( looping );
        throw e;
      }
    }, 1000 / curFrameRate );
    
    loopStarted = true;
  }
  
  p.frameRate = function frameRate( aRate )
  {
    curFrameRate = aRate;
  }
  
  p.background = function background( img )
  {
    if ( arguments.length )
    {
      if ( img && img.img )
      {
        curBackground = img;
      }
      else
      {
        curBackground = p.color.apply( this, arguments );
      }
    }
    

    if ( curBackground.img )
    {
      p.image( curBackground, 0, 0 );
    }
    else
    {
      var oldFill = curContext.fillStyle;
      curContext.fillStyle = curBackground + "";
      curContext.fillRect( 0, 0, p.width, p.height );
      curContext.fillStyle = oldFill;
    }
  }

  p.sq = function sq( aNumber )
  {
    return aNumber * aNumber;
  }

  p.sqrt = function sqrt( aNumber )
  {
    return Math.sqrt( aNumber );
  }
  
  p.int = function int( aNumber )
  {
    return Math.floor( aNumber );
  }

  p.min = function min( aNumber, aNumber2 )
  {
    return Math.min( aNumber, aNumber2 );
  }

  p.max = function max( aNumber, aNumber2 )
  {
    return Math.max( aNumber, aNumber2 );
  }

  p.ceil = function ceil( aNumber )
  {
    return Math.ceil( aNumber );
  }

  p.floor = function floor( aNumber )
  {
    return Math.floor( aNumber );
  }

  p.float = function float( aNumber )
  {
    return typeof aNumber == "string" ?
	p.float( aNumber.charCodeAt(0) ) :
        parseFloat( aNumber );
  }

  p.byte = function byte( aNumber )
  {
    return aNumber || 0;
  }
  
  p.random = function random( aMin, aMax )
  {
    return arguments.length == 2 ?
      aMin + (Math.random() * (aMax - aMin)) :
      Math.random() * aMin;
  }

  // From: http://freespace.virgin.net/hugo.elias/models/m_perlin.htm
  p.noise = function( x, y, z )
  {
    return arguments.length >= 2 ?
      PerlinNoise_2D( x, y ) :
      PerlinNoise_2D( x, x );
  }

  function Noise(x, y)
  {
    var n = x + y * 57;
    n = (n<<13) ^ n;
    return Math.abs(1.0 - (((n * ((n * n * 15731) + 789221) + 1376312589) & 0x7fffffff) / 1073741824.0));
  }

  function SmoothedNoise(x, y)
  {
    var corners = ( Noise(x-1, y-1)+Noise(x+1, y-1)+Noise(x-1, y+1)+Noise(x+1, y+1) ) / 16;
    var sides   = ( Noise(x-1, y)  +Noise(x+1, y)  +Noise(x, y-1)  +Noise(x, y+1) ) /  8;
    var center  =  Noise(x, y) / 4;
    return corners + sides + center;
  }

  function InterpolatedNoise(x, y)
  {
    var integer_X    = Math.floor(x);
    var fractional_X = x - integer_X;

    var integer_Y    = Math.floor(y);
    var fractional_Y = y - integer_Y;

    var v1 = SmoothedNoise(integer_X,     integer_Y);
    var v2 = SmoothedNoise(integer_X + 1, integer_Y);
    var v3 = SmoothedNoise(integer_X,     integer_Y + 1);
    var v4 = SmoothedNoise(integer_X + 1, integer_Y + 1);

    var i1 = Interpolate(v1 , v2 , fractional_X);
    var i2 = Interpolate(v3 , v4 , fractional_X);

    return Interpolate(i1 , i2 , fractional_Y);
  }

  function PerlinNoise_2D(x, y)
  {
      var total = 0;
      var p = 0.25;
      var n = 3;

      for ( var i = 0; i <= n; i++ )
      {
          var frequency = Math.pow(2, i);
          var amplitude = Math.pow(p, i);

          total = total + InterpolatedNoise(x * frequency, y * frequency) * amplitude;
      }

      return total;
  }

  function Interpolate(a, b, x)
  {
    var ft = x * p.PI;
    var f = (1 - p.cos(ft)) * .5;
    return  a*(1-f) + b*f;
  }

  p.red = function( aColor )
  {
    return parseInt(aColor.slice(5));
  }

  p.green = function( aColor )
  {
    return parseInt(aColor.split(",")[1]);
  }

  p.blue = function( aColor )
  {
    return parseInt(aColor.split(",")[2]);
  }

  p.alpha = function( aColor )
  {
    return parseInt(aColor.split(",")[3]);
  }

  p.abs = function abs( aNumber )
  {
    return Math.abs( aNumber );
  }
  
  p.cos = function cos( aNumber )
  {
    return Math.cos( aNumber );
  }
  
  p.sin = function sin( aNumber )
  {
    return Math.sin( aNumber );
  }
  
  p.pow = function pow( aNumber, aExponent )
  {
    return Math.pow( aNumber, aExponent );
  }
  
  p.constrain = function constrain( aNumber, aMin, aMax )
  {
    return Math.min( Math.max( aNumber, aMin ), aMax );
  }
  
  p.sqrt = function sqrt( aNumber )
  {
  	return Math.sqrt( aNumber );
  }
  
  p.atan2 = function atan2( aNumber, aNumber2 )
  {
  	return Math.atan2( aNumber, aNumber2 );
  }
  
  p.radians = function radians( aAngle )
  {
    return ( aAngle / 180 ) * p.PI;
  }
  
  p.size = function size( aWidth, aHeight )
  {
    var fillStyle = curContext.fillStyle;
    var strokeStyle = curContext.strokeStyle;

    curElement.width = p.width = aWidth;
    curElement.height = p.height = aHeight;

    curContext.fillStyle = fillStyle;
    curContext.strokeStyle = strokeStyle;
  }
  
  p.noStroke = function noStroke()
  {
    doStroke = false;
  }
  
  p.noFill = function noFill()
  {
    doFill = false;
  }
  
  p.smooth = function smooth()
  {
  
  }
  
  p.noLoop = function noLoop()
  {
    doLoop = false;
  }
  
  p.fill = function fill()
  {
    doFill = true;
    curContext.fillStyle = p.color.apply( this, arguments );
  }
  
  p.stroke = function stroke()
  {
    doStroke = true;
    curContext.strokeStyle = p.color.apply( this, arguments );
  }

  p.strokeWeight = function strokeWeight( w )
  {
    curContext.lineWidth = w;
  }
  
  p.point = function point( x, y )
  {
    var oldFill = curContext.fillStyle;
    curContext.fillStyle = curContext.strokeStyle;
    curContext.fillRect( Math.round( x ), Math.round( y ), 1, 1 );
    curContext.fillStyle = oldFill;
  }

  p.get = function get( x, y )
  {
    if ( arguments.length == 0 )
    {
      var c = p.createGraphics( p.width, p.height );
      c.image( curContext, 0, 0 );
      return c;
    }

    if ( !getLoaded )
    {
      getLoaded = buildImageObject( curContext.getImageData(0, 0, p.width, p.height) );
    }

    return getLoaded.get( x, y );
  }

  p.set = function set( x, y, color )
  {
    var oldFill = curContext.fillStyle;
    curContext.fillStyle = color;
    curContext.fillRect( Math.round( x ), Math.round( y ), 1, 1 );
    curContext.fillStyle = oldFill;
  }
  
  p.arc = function arc( x, y, width, height, start, stop )
  {
    if ( width <= 0 )
      return;

    if ( curEllipseMode == p.CORNER )
    {
      x += width / 2;
      y += height / 2;
    }

    curContext.beginPath();
  
    curContext.moveTo( x, y );
    curContext.arc( x, y, curEllipseMode == p.CENTER_RADIUS ? width : width/2, start, stop, false );
    
    if ( doFill )
      curContext.fill();
      
    if ( doStroke )
      curContext.stroke();
    
    curContext.closePath();
  }
  
  p.line = function line( x1, y1, x2, y2 )
  {
    curContext.lineCap = "round";
    curContext.beginPath();
  
    curContext.moveTo( x1 || 0, y1 || 0 );
    curContext.lineTo( x2 || 0, y2 || 0 );
    
    curContext.stroke();
    
    curContext.closePath();
  }

  p.bezier = function bezier( x1, y1, x2, y2, x3, y3, x4, y4 )
  {
    curContext.lineCap = "butt";
    curContext.beginPath();
  
    curContext.moveTo( x1, y1 );
    curContext.bezierCurveTo( x2, y2, x3, y3, x4, y4 );
    
    curContext.stroke();
    
    curContext.closePath();
  }

  p.triangle = function triangle( x1, y1, x2, y2, x3, y3 )
  {
    p.beginShape();
    p.vertex( x1, y1 );
    p.vertex( x2, y2 );
    p.vertex( x3, y3 );
    p.endShape();
  }

  p.quad = function quad( x1, y1, x2, y2, x3, y3, x4, y4 )
  {
    p.beginShape();
    p.vertex( x1, y1 );
    p.vertex( x2, y2 );
    p.vertex( x3, y3 );
    p.vertex( x4, y4 );
    p.endShape();
  }
  
  p.rect = function rect( x, y, width, height )
  {
    if ( width == 0 && height == 0 )
      return;

    curContext.beginPath();
    
    var offsetStart = 0;
    var offsetEnd = 0;

    if ( curRectMode == p.CORNERS )
    {
      width -= x;
      height -= y;
    }
    
    if ( curRectMode == p.RADIUS )
    {
      width *= 2;
      height *= 2;
    }
    
    if ( curRectMode == p.CENTER || curRectMode == p.RADIUS )
    {
      x -= width / 2;
      y -= height / 2;
    }
  
    curContext.rect(
      Math.round( x ) - offsetStart,
      Math.round( y ) - offsetStart,
      Math.round( width ) + offsetEnd,
      Math.round( height ) + offsetEnd
    );
      
    if ( doFill )
      curContext.fill();
      
    if ( doStroke )
      curContext.stroke();
    
    curContext.closePath();
  }
  
  p.ellipse = function ellipse( x, y, width, height )
  {
    x = x || 0;
    y = y || 0;

    if ( width <= 0 && height <= 0 )
      return;

    curContext.beginPath();
    
    if ( curEllipseMode == p.RADIUS )
    {
      width *= 2;
      height *= 2;
    }
    
    var offsetStart = 0;
    
    // Shortcut for drawing a circle
    if ( width == height )
      curContext.arc( x - offsetStart, y - offsetStart, width / 2, 0, Math.PI * 2, false );
  
    if ( doFill )
      curContext.fill();
      
    if ( doStroke )
      curContext.stroke();
    
    curContext.closePath();
  }

  p.link = function( href, target )
  {
    window.location = href;
  }

  p.loadPixels = function()
  {
    p.pixels = buildImageObject( curContext.getImageData(0, 0, p.width, p.height) ).pixels;
  }

  p.updatePixels = function()
  {
    var colors = /(\d+),(\d+),(\d+),(\d+)/;
    var pixels = {};
    var data = pixels.data = [];
    pixels.width = p.width;
    pixels.height = p.height;

    var pos = 0;

    for ( var i = 0, l = p.pixels.length; i < l; i++ ) {
      var c = (p.pixels[i] || "rgba(0,0,0,1)").match(colors);
      data[pos] = parseInt(c[1]);
      data[pos+1] = parseInt(c[2]);
      data[pos+2] = parseInt(c[3]);
      data[pos+3] = parseFloat(c[4]) * 100;
      pos += 4;
    }

    curContext.putImageData(pixels, 0, 0);
  }

  p.extendClass = function extendClass( obj, args, fn )
  {
    if ( arguments.length == 3 )
    {
      fn.apply( obj, args );
    }
    else
    {
      args.call( obj );
    }
  }

  p.addMethod = function addMethod( object, name, fn )
  {
    if ( object[ name ] )
    {
      var args = fn.length;
      
      var oldfn = object[ name ];
      object[ name ] = function()
      {
        if ( arguments.length == args )
          return fn.apply( this, arguments );
        else
          return oldfn.apply( this, arguments );
      };
    }
    else
    {
      object[ name ] = fn;
    }
  }

  p.init = function init(code){
    p.stroke( 0 );
    p.fill( 255 );
  
    // Canvas has trouble rendering single pixel stuff on whole-pixel
    // counts, so we slightly offset it (this is super lame).
    curContext.translate( 0.5, 0.5 );

    if ( code )
    {
      (function(Processing){with (p){
        eval(parse(code, p));
      }})(p);
    }
  
    if ( p.setup )
    {
      inSetup = true;
      p.setup();
    }
    
    inSetup = false;
    
    if ( p.draw )
    {
      if ( !doLoop )
      {
        p.redraw();
      }
      else
      {
        p.loop();
      }
    }
    
    attach( curElement, "mousemove", function(e)
    {
      p.pmouseX = p.mouseX;
      p.pmouseY = p.mouseY;
      p.mouseX = e.clientX - curElement.offsetLeft;
      p.mouseY = e.clientY - curElement.offsetTop;

      if ( p.mouseMoved )
      {
        p.mouseMoved();
      }      

      if ( mousePressed && p.mouseDragged )
      {
        p.mouseDragged();
      }      
    });
    
    attach( curElement, "mousedown", function(e)
    {
      mousePressed = true;

      if ( typeof p.mousePressed == "function" )
      {
        p.mousePressed();
      }
      else
      {
        p.mousePressed = true;
      }
    });
      
    attach( curElement, "mouseup", function(e)
    {
      mousePressed = false;

      if ( typeof p.mousePressed != "function" )
      {
        p.mousePressed = false;
      }

      if ( p.mouseReleased )
      {
        p.mouseReleased();
      }
    });

    attach( document, "keydown", function(e)
    {
      keyPressed = true;

      p.key = e.keyCode + 32;

      if ( e.shiftKey )
      {
        p.key = String.fromCharCode(p.key).toUpperCase().charCodeAt(0);
      }

      if ( typeof p.keyPressed == "function" )
      {
        p.keyPressed();
      }
      else
      {
        p.keyPressed = true;
      }
    });

    attach( document, "keyup", function(e)
    {
      keyPressed = false;

      if ( typeof p.keyPressed != "function" )
      {
        p.keyPressed = false;
      }

      if ( p.keyReleased )
      {
        p.keyReleased();
      }
    });

    function attach(elem, type, fn)
    {
      if ( elem.addEventListener )
        elem.addEventListener( type, fn, false );
      else
        elem.attachEvent( "on" + type, fn );
    }
  };

  return p;
}


})();


} //# end of "install only once"
//}}}
These are demos for different ways you can use ProcessingjsPlugin. See TemplateTweak for the tweak required in ViewTemplate.
/***
|Name:|QuickOpenTagPlugin|
|Description:|Changes tag links to make it easier to open tags as tiddlers|
|Version:|3.0.1 ($Rev: 3861 $)|
|Date:|$Date: 2008-03-08 10:53:09 +1000 (Sat, 08 Mar 2008) $|
|Source:|http://mptw.tiddlyspot.com/#QuickOpenTagPlugin|
|Author:|Simon Baird <simon.baird@gmail.com>|
|License:|http://mptw.tiddlyspot.com/#TheBSDLicense|
***/
//{{{
config.quickOpenTag = {

	dropdownChar: (document.all ? "\u25bc" : "\u25be"), // the little one doesn't work in IE?

	createTagButton: function(place,tag,excludeTiddler) {
		// little hack so we can do this: <<tag PrettyTagName|RealTagName>>
		var splitTag = tag.split("|");
		var pretty = tag;
		if (splitTag.length == 2) {
			tag = splitTag[1];
			pretty = splitTag[0];
		}
		
		var sp = createTiddlyElement(place,"span",null,"quickopentag");
		createTiddlyText(createTiddlyLink(sp,tag,false),pretty);
		
		var theTag = createTiddlyButton(sp,config.quickOpenTag.dropdownChar,
                        config.views.wikified.tag.tooltip.format([tag]),onClickTag);
		theTag.setAttribute("tag",tag);
		if (excludeTiddler)
			theTag.setAttribute("tiddler",excludeTiddler);
    		return(theTag);
	},

	miniTagHandler: function(place,macroName,params,wikifier,paramString,tiddler) {
		var tagged = store.getTaggedTiddlers(tiddler.title);
		if (tagged.length > 0) {
			var theTag = createTiddlyButton(place,config.quickOpenTag.dropdownChar,
                        	config.views.wikified.tag.tooltip.format([tiddler.title]),onClickTag);
			theTag.setAttribute("tag",tiddler.title);
			theTag.className = "miniTag";
		}
	},

	allTagsHandler: function(place,macroName,params) {
		var tags = store.getTags(params[0]);
		var filter = params[1]; // new feature
		var ul = createTiddlyElement(place,"ul");
		if(tags.length == 0)
			createTiddlyElement(ul,"li",null,"listTitle",this.noTags);
		for(var t=0; t<tags.length; t++) {
			var title = tags[t][0];
			if (!filter || (title.match(new RegExp('^'+filter)))) {
				var info = getTiddlyLinkInfo(title);
				var theListItem =createTiddlyElement(ul,"li");
				var theLink = createTiddlyLink(theListItem,tags[t][0],true);
				var theCount = " (" + tags[t][1] + ")";
				theLink.appendChild(document.createTextNode(theCount));
				var theDropDownBtn = createTiddlyButton(theListItem," " +
					config.quickOpenTag.dropdownChar,this.tooltip.format([tags[t][0]]),onClickTag);
				theDropDownBtn.setAttribute("tag",tags[t][0]);
			}
		}
	},

	// todo fix these up a bit
	styles: [
"/*{{{*/",
"/* created by QuickOpenTagPlugin */",
".tagglyTagged .quickopentag, .tagged .quickopentag ",
"	{ margin-right:1.2em; border:1px solid #eee; padding:2px; padding-right:0px; padding-left:1px; }",
".quickopentag .tiddlyLink { padding:2px; padding-left:3px; }",
".quickopentag a.button { padding:1px; padding-left:2px; padding-right:2px;}",
"/* extra specificity to make it work right */",
"#displayArea .viewer .quickopentag a.button, ",
"#displayArea .viewer .quickopentag a.tiddyLink, ",
"#mainMenu .quickopentag a.tiddyLink, ",
"#mainMenu .quickopentag a.tiddyLink ",
"	{ border:0px solid black; }",
"#displayArea .viewer .quickopentag a.button, ",
"#mainMenu .quickopentag a.button ",
"	{ margin-left:0px; padding-left:2px; }",
"#displayArea .viewer .quickopentag a.tiddlyLink, ",
"#mainMenu .quickopentag a.tiddlyLink ",
"	{ margin-right:0px; padding-right:0px; padding-left:0px; margin-left:0px; }",
"a.miniTag {font-size:150%;} ",
"#mainMenu .quickopentag a.button ",
"	/* looks better in right justified main menus */",
"	{ margin-left:0px; padding-left:2px; margin-right:0px; padding-right:0px; }", 
"#topMenu .quickopentag { padding:0px; margin:0px; border:0px; }",
"#topMenu .quickopentag .tiddlyLink { padding-right:1px; margin-right:0px; }",
"#topMenu .quickopentag .button { padding-left:1px; margin-left:0px; border:0px; }",
"/*}}}*/",
		""].join("\n"),

	init: function() {
		// we fully replace these builtins. can't hijack them easily
		window.createTagButton = this.createTagButton;
		config.macros.allTags.handler = this.allTagsHandler;
		config.macros.miniTag = { handler: this.miniTagHandler };
		config.shadowTiddlers["QuickOpenTagStyles"] = this.styles;
		store.addNotification("QuickOpenTagStyles",refreshStyles);
	}
}

config.quickOpenTag.init();

//}}}

Random numbers create the basis of this image. Each time the program is loaded the result is different.

<<Processing 

size(200, 200);
smooth();
background(0);
strokeWeight(10);

for(int i = 0; i < width; i++) {
  float r = random(255);
  float x = random(0, width);
  stroke(r, 100);
  line(i, 0, x, height);
}

>>

Taken from [[basic/random.html|http://ejohn.org/apps/processing.js/examples/basic/random.html]]
A demonstration of recursion, which means functions call themselves. Notice how the drawCircle() function calls itself at the end of its block. It continues to do this until the variable "level" is equal to 1.

<<Processing 

void setup() 
{
  size(200, 200);
  noStroke();
  smooth();
  noLoop();
}

void draw() 
{
  drawCircle(126, 170, 6);
}

void drawCircle(int x, int radius, int level) 
{                    
  float tt = 126 * level/4.0;
  fill(tt);
  ellipse(x, 100, radius*2, radius*2);      
  if(level > 1) {
    level = level - 1;
    drawCircle(x - radius/2, radius/2, level);
    drawCircle(x + radius/2, radius/2, level);
  }
}

>>

Taken from [[basic/recursion.html|http://ejohn.org/apps/processing.js/examples/basic/recursion.html]]
merge(config.commands, {
	refresh: {
		text: 'refresh',
		tooltip: 'Refresh this tiddler',
		handler: function(e,src,title) {
			clearMessage();
			story.refreshTiddler(title,null,true);
			return false;			
		}
	}
});
/***
|Name:|RenameTagsPlugin|
|Description:|Allows you to easily rename or delete tags across multiple tiddlers|
|Version:|3.0 ($Rev: 3861 $)|
|Date:|$Date: 2008-03-08 10:53:09 +1000 (Sat, 08 Mar 2008) $|
|Source:|http://mptw.tiddlyspot.com/#RenameTagsPlugin|
|Author:|Simon Baird <simon.baird@gmail.com>|
|License|http://mptw.tiddlyspot.com/#TheBSDLicense|
Rename a tag and you will be prompted to rename it in all its tagged tiddlers.
***/
//{{{
config.renameTags = {

	prompts: {
		rename: "Rename the tag '%0' to '%1' in %2 tidder%3?",
		remove: "Remove the tag '%0' from %1 tidder%2?"
	},

	removeTag: function(tag,tiddlers) {
		store.suspendNotifications();
		for (var i=0;i<tiddlers.length;i++) {
			store.setTiddlerTag(tiddlers[i].title,false,tag);
		}
		store.resumeNotifications();
		store.notifyAll();
	},

	renameTag: function(oldTag,newTag,tiddlers) {
		store.suspendNotifications();
		for (var i=0;i<tiddlers.length;i++) {
			store.setTiddlerTag(tiddlers[i].title,false,oldTag); // remove old
			store.setTiddlerTag(tiddlers[i].title,true,newTag);  // add new
		}
		store.resumeNotifications();
		store.notifyAll();
	},

	storeMethods: {

		saveTiddler_orig_renameTags: TiddlyWiki.prototype.saveTiddler,

		saveTiddler: function(title,newTitle,newBody,modifier,modified,tags,fields) {
			if (title != newTitle) {
				var tagged = this.getTaggedTiddlers(title);
				if (tagged.length > 0) {
					// then we are renaming a tag
					if (confirm(config.renameTags.prompts.rename.format([title,newTitle,tagged.length,tagged.length>1?"s":""])))
						config.renameTags.renameTag(title,newTitle,tagged);

					if (!this.tiddlerExists(title) && newBody == "")
						// dont create unwanted tiddler
						return null;
				}
			}
			return this.saveTiddler_orig_renameTags(title,newTitle,newBody,modifier,modified,tags,fields);
		},

		removeTiddler_orig_renameTags: TiddlyWiki.prototype.removeTiddler,

		removeTiddler: function(title) {
			var tagged = this.getTaggedTiddlers(title);
			if (tagged.length > 0)
				if (confirm(config.renameTags.prompts.remove.format([title,tagged.length,tagged.length>1?"s":""])))
					config.renameTags.removeTag(title,tagged);
			return this.removeTiddler_orig_renameTags(title);
		}

	},

	init: function() {
		merge(TiddlyWiki.prototype,this.storeMethods);
	}
}

config.renameTags.init();

//}}}

/***
|Name:|SaveCloseTiddlerPlugin|
|Description:|Provides two extra toolbar commands, saveCloseTiddler and cancelCloseTiddler|
|Version:|3.0 ($Rev: 3861 $)|
|Date:|$Date: 2008-03-08 10:53:09 +1000 (Sat, 08 Mar 2008) $|
|Source:|http://mptw.tiddlyspot.com/#SaveCloseTiddlerPlugin|
|Author:|Simon Baird <simon.baird@gmail.com>|
|License:|http://mptw.tiddlyspot.com/#TheBSDLicense|
To use these you must add them to the tool bar in your EditTemplate
***/
//{{{
merge(config.commands,{

	saveCloseTiddler: {
		text: 'done/close',
		tooltip: 'Save changes to this tiddler and close it',
		handler: function(e,src,title) {
			config.commands.saveTiddler.handler(e,src,title);
			config.commands.closeTiddler.handler(e,src,title);
			return false;
		}
	},

	cancelCloseTiddler: {
		text: 'cancel/close',
		tooltip: 'Undo changes to this tiddler and close it',
		handler: function(e,src,title) {
			config.commands.cancelTiddler.handler(e,src,title);
			config.commands.closeTiddler.handler(e,src,title);
			return false;
		}
	}

});

//}}}

by Denis Grutze. Paramenters for the scale() function are values specified as decimal percentages. For example, the method call scale(2.0) will increase the dimension of the shape by 200 percent. Objects always scale from the origin.

<<Processing 

float a = 0.0;
float s = 0.0;

void setup()
{
  size(200,200);
  noStroke();
  rectMode(CENTER);
  frameRate(30);
}

void draw()
{
  background(102);
  
  a = a + 0.04;
  s = cos(a)*2;
  
  translate(width/2, height/2);
  scale(s); 
  fill(51);
  rect(0, 0, 50, 50); 
  
  translate(75, 0);
  fill(255);
  scale(s);
  rect(0, 0, 50, 50);       
}

>>

Taken from [[basic/scale.html|http://ejohn.org/apps/processing.js/examples/basic/scale.html]]
/***
|Name:|SelectThemePlugin|
|Description:|Lets you easily switch theme and palette|
|Version:|1.0 ($Rev: 3646 $)|
|Date:|$Date: 2008-02-27 02:34:38 +1000 (Wed, 27 Feb 2008) $|
|Source:|http://mptw.tiddlyspot.com/#SelectThemePlugin|
|Author:|Simon Baird <simon.baird@gmail.com>|
|License:|http://mptw.tiddlyspot.com/#TheBSDLicense|
!Notes
* Borrows largely from ThemeSwitcherPlugin by Martin Budden http://www.martinswiki.com/#ThemeSwitcherPlugin
* Theme is cookie based. But set a default by setting config.options.txtTheme in MptwConfigPlugin (for example)
* Palette is not cookie based. It actually overwrites your ColorPalette tiddler when you select a palette, so beware. 
!Usage
* {{{<<selectTheme>>}}} makes a dropdown selector
* {{{<<selectPalette>>}}} makes a dropdown selector
* {{{<<applyTheme>>}}} applies the current tiddler as a theme
* {{{<<applyPalette>>}}} applies the current tiddler as a palette
* {{{<<applyTheme TiddlerName>>}}} applies TiddlerName as a theme
* {{{<<applyPalette TiddlerName>>}}} applies TiddlerName as a palette
***/
//{{{

config.macros.selectTheme = {
	label: {
      		selectTheme:"select theme",
      		selectPalette:"select palette"
	},
	prompt: {
		selectTheme:"Select the current theme",
		selectPalette:"Select the current palette"
	},
	tags: {
		selectTheme:'systemTheme',
		selectPalette:'systemPalette'
	}
};

config.macros.selectTheme.handler = function(place,macroName)
{
	var btn = createTiddlyButton(place,this.label[macroName],this.prompt[macroName],this.onClick);
	// want to handle palettes and themes with same code. use mode attribute to distinguish
	btn.setAttribute('mode',macroName);
};

config.macros.selectTheme.onClick = function(ev)
{
	var e = ev ? ev : window.event;
	var popup = Popup.create(this);
	var mode = this.getAttribute('mode');
	var tiddlers = store.getTaggedTiddlers(config.macros.selectTheme.tags[mode]);
	// for default
	if (mode == "selectPalette") {
		var btn = createTiddlyButton(createTiddlyElement(popup,'li'),"(default)","default color palette",config.macros.selectTheme.onClickTheme);
		btn.setAttribute('theme',"(default)");
		btn.setAttribute('mode',mode);
	}
	for(var i=0; i<tiddlers.length; i++) {
		var t = tiddlers[i].title;
		var name = store.getTiddlerSlice(t,'Name');
		var desc = store.getTiddlerSlice(t,'Description');
		var btn = createTiddlyButton(createTiddlyElement(popup,'li'),name ? name : title,desc ? desc : config.macros.selectTheme.label['mode'],config.macros.selectTheme.onClickTheme);
		btn.setAttribute('theme',t);
		btn.setAttribute('mode',mode);
	}
	Popup.show();
	return stopEvent(e);
};

config.macros.selectTheme.onClickTheme = function(ev)
{
	var mode = this.getAttribute('mode');
	var theme = this.getAttribute('theme');
	if (mode == 'selectTheme')
		story.switchTheme(theme);
	else // selectPalette
		config.macros.selectTheme.updatePalette(theme);
	return false;
};

config.macros.selectTheme.updatePalette = function(title)
{
	if (title != "") {
		store.deleteTiddler("ColorPalette");
		if (title != "(default)")
			store.saveTiddler("ColorPalette","ColorPalette",store.getTiddlerText(title),
					config.options.txtUserName,undefined,"");
		refreshAll();
		if(config.options.chkAutoSave)
			saveChanges(true);
	}
};

config.macros.applyTheme = {
	label: "apply",
	prompt: "apply this theme or palette" // i'm lazy
};

config.macros.applyTheme.handler = function(place,macroName,params,wikifier,paramString,tiddler) {
	var useTiddler = params[0] ? params[0] : tiddler.title;
	var btn = createTiddlyButton(place,this.label,this.prompt,config.macros.selectTheme.onClickTheme);
	btn.setAttribute('theme',useTiddler);
	btn.setAttribute('mode',macroName=="applyTheme"?"selectTheme":"selectPalette"); // a bit untidy here
}

config.macros.selectPalette = config.macros.selectTheme;
config.macros.applyPalette = config.macros.applyTheme;

config.macros.refreshAll = { handler: function(place,macroName,params,wikifier,paramString,tiddler) {
	createTiddlyButton(place,"refresh","refresh layout and styles",function() { refreshAll(); });
}};

//}}}

Simple curves are drawn with simple equations. By using numbers with values between 0 and 1 in the equations, a series of elegant curves are created. The numbers are then scaled to fill the screen.

<<Processing 

void setup() {
  size(200, 200);
  colorMode(RGB, 100);
  background(0);
  noFill();
  noLoop();
}

void draw() {
  stroke(40);
  beginShape();
  for(int i=0; i<width; i++) {
   vertex(i, singraph((float)i/width)*height);
  }
  endShape();
  
  stroke(55);
  beginShape();
  for(int i=0; i<width; i++) {
   vertex(i, quad((float)i/width)*height);
  }
  endShape();
  
  stroke(70);
  beginShape();
  for(int i=0; i<width; i++) {
   vertex(i, quadHump((float)i/width)*height);
  }
  endShape();
  
  stroke(85);
  beginShape();
  for(int i=0; i<width; i++) {
   vertex(i, hump((float)i/width)*height);
  }
  endShape();
  
  stroke(100);
  beginShape();
  for(int i=0; i<width; i++) {
   vertex(i, squared((float)i/width)*height);
  }
  endShape();
}

float singraph(float sa) {
  sa = (sa - 0.5) * 1.0; //scale from -1 to 1
  sa = sin(sa*PI)/2 + 0.5;
  return sa;
}

float quad(float sa) {
  return sa*sa*sa*sa;
}

float quadHump(float sa) {
  sa = (sa - 0.5); //scale from -2 to 2
  sa = sa*sa*sa*sa * 16;
  return sa;
}

float hump(float sa) {
  sa = (sa - 0.5) * 2; //scale from -2 to 2
  sa = sa*sa;
  if(sa > 1) { sa = 1; }
  return 1-sa;
}

float squared(float sa) {
  sa = sa*sa;
  return sa;
}

>>

Taken from [[basic/simplecurves.html|http://ejohn.org/apps/processing.js/examples/basic/simplecurves.html]]
Smoothly scaling size with the sin() function.

<<Processing 

float spin = 0.0; 
float diameter = 84.0; 
float angle;

float angle_rot; 
int rad_points = 90;

void setup() 
{
  size(200, 200);
  noStroke();
  smooth();
}

void draw() 
{ 
  background(153);
  
  translate(130, 65);
  
  fill(255);
  ellipse(0, 0, 16, 16);
  
  angle_rot = 0;
  fill(51);

  for(int i=0; i<5; i++) {
    pushMatrix();
    rotate(angle_rot + -45);
    ellipse(-116, 0, diameter, diameter);
    popMatrix();
    angle_rot += PI*2/5;
  }

  diameter = 34 * sin(angle) + 168;
  
  angle += 0.02;
  if (angle > TWO_PI) { angle = 0; }
}

>>

Taken from [[basic/sine.html|http://ejohn.org/apps/processing.js/examples/basic/sine.html]]
Linear movement with sin() and cos(). Numbers between 0 and PI*2 (TWO_PI which is roughly 6.28) are put into these functions and numbers between -1 and 1 are returned. These values are then scaled to produce larger movements.

<<Processing 

int i = 45;
int j = 225; 
float pos1 = 0; 
float pos2 = 0; 
float pos3 = 0; 
float pos4 = 0;
int sc = 40;

void setup() 
{
  size(200, 200);
  noStroke();
  smooth();
}

void draw() 
{
  background(0);
  
  fill(51);
  rect(60, 60, 80, 80);

  fill(255);
  ellipse(pos1, 36, 32, 32);

  fill(153);
  ellipse(36, pos2, 32, 32);

  fill(255);
  ellipse(pos3, 164, 32, 32);

  fill(153);
  ellipse(164, pos4, 32, 32);

  i += 3;
  j -= 3;

  if(i > 405) {
    i = 45;
    j = 225;
  }

  float ang1 = radians(i); // convert degrees to radians
  float ang2 = radians(j); // convert degrees to radians
  pos1 = width/2 + (sc * cos(ang1));
  pos2 = width/2 + (sc * sin(ang1));
  pos3 = width/2 + (sc * cos(ang2));
  pos4 = width/2 + (sc * sin(ang2));
}

>>

Taken from [[basic/sinecosine.html|http://ejohn.org/apps/processing.js/examples/basic/sinecosine.html]]
by Daniel Shiffman. Render a simple sine wave.

<<Processing 

int xspacing = 8;   // How far apart should each horizontal location be spaced
int w;              // Width of entire wave

float theta = 0.0;       // Start angle at 0
float amplitude = 75.0;  // Height of wave
float period = 500.0;    // How many pixels before the wave repeats
float dx;                 // Value for incrementing X, to be calculated as a function of period and xspacing
float[] yvalues;          // Using an array to store height values for the wave (not entirely necessary)

void setup() {
  size(200,200);
  frameRate(30);
  colorMode(RGB,255,255,255,100);
  smooth();
  w = width+16;
  dx = (TWO_PI / period) * xspacing;
  yvalues = new float[w/xspacing];
}

void draw() {
  background(0);
  calcWave();
  renderWave();

}

void calcWave() {
  // Increment theta (try different values for 'angular velocity' here
  theta += 0.02;

  // For every x value, calculate a y value with sine function
  float x = theta;
  for (int i = 0; i < yvalues.length; i++) {
    yvalues[i] = sin(x)*amplitude;
    x+=dx;
  }
}

void renderWave() {
  // A simple way to draw the wave with an ellipse at each location
  for (int x = 0; x < yvalues.length; x++) {
    noStroke();
    fill(255,50);
    ellipseMode(CENTER);
    ellipse(x*xspacing,width/2+yvalues[x],16,16);
  }
}

>>

Taken from [[basic/sinewave.html|http://ejohn.org/apps/processing.js/examples/basic/sinewave.html]]
playing about with ProcessingjsPlugin
Processing
<<Processing

// All Examples Written by Casey Reas and Ben Fry
// unless otherwise stated.
// center point
float centerX = 0, centerY = 0;

float radius = 45, rotAngle = -90;
float accelX, accelY;
float springing = .0085, damping = .98;

//corner nodes
int nodes = 5;
float nodeStartX[] = new float[nodes];
float nodeStartY[] = new float[nodes];
float[]nodeX = new float[nodes];
float[]nodeY = new float[nodes];
float[]angle = new float[nodes];
float[]frequency = new float[nodes];

// soft-body dynamics
float organicConstant = 1;

void setup() {
  size(200, 200);
  //center shape in window
  centerX = width/2;
  centerY = height/2;
  // iniitalize frequencies for corner nodes
  for (int i=0; i<nodes; i++){
    frequency[i] = random(5, 12);
  }
  noStroke();
  smooth();
  frameRate(30);
}

void draw() {
  //fade background
  fill(0, 100);
  rect(0,0,width, height);
  drawShape();
  moveShape();
}

void drawShape() {
  //  calculate node  starting locations
  for (int i=0; i<nodes; i++){
    nodeStartX[i] = centerX+cos(radians(rotAngle))*radius;
    nodeStartY[i] = centerY+sin(radians(rotAngle))*radius;
    rotAngle += 360.0/nodes;
  }

  // draw polygon
  curveTightness(organicConstant);
  fill(255);
  beginShape();
  for (int i=0; i<nodes; i++){
    curveVertex(nodeX[i], nodeY[i]);
  }
  for (int i=0; i<nodes-1; i++){
    curveVertex(nodeX[i], nodeY[i]);
  }
  endShape(CLOSE);
}

void moveShape() {
  //move center point
  float deltaX = mouseX-centerX;
  float deltaY = mouseY-centerY;

  // create springing effect
  deltaX *= springing;
  deltaY *= springing;
  accelX += deltaX;
  accelY += deltaY;

  // move predator's center
  centerX += accelX;
  centerY += accelY;

  // slow down springing
  accelX *= damping;
  accelY *= damping;

  // change curve tightness
  organicConstant = 1-((abs(accelX)+abs(accelY))*.1);

  //move nodes
  for (int i=0; i<nodes; i++){
    nodeX[i] = nodeStartX[i]+sin(radians(angle[i]))*(accelX*2);
    nodeY[i] = nodeStartY[i]+sin(radians(angle[i]))*(accelY*2);
    angle[i]+=frequency[i];
  }
}

>>
/***
Source: http://ejohn.org/apps/spiral/process.html
<<Processing>> 
***/
//{{{

int pos = 0, dir = 1;

void setup(){
	size(500, 500);
	noStroke();
	background( 0 );
}

void draw(){
	rotate( 15 * pos );
	
	fill(0, 10);
	rect(0, 0, width, height);
	
	fill(255, 0, 0);
	rect( pos, pos, 20, 20 );
	
	pos += dir;
	
	if ( pos > width ) {
		dir = -1;
	} else if ( pos + 20 < 0 ) {
		dir = 1;
	}
}

//}}}
<<allTags excludeLists>>
<<tabs txtMoreTab "Tags" "All Tags" TabAllTags "Miss" "Missing tiddlers" TabMoreMissing "Orph" "Orphaned tiddlers" TabMoreOrphans "Shad" "Shadowed tiddlers" TabMoreShadowed>>
<<allTags excludeLists [a-z]>>
/***
|Name:|TagglyTaggingPlugin|
|Description:|tagglyTagging macro is a replacement for the builtin tagging macro in your ViewTemplate|
|Version:|3.1 ($Rev: 4092 $)|
|Date:|$Date: 2008-03-24 12:32:33 +1000 (Mon, 24 Mar 2008) $|
|Source:|http://mptw.tiddlyspot.com/#TagglyTaggingPlugin|
|Author:|Simon Baird <simon.baird@gmail.com>|
|License:|http://mptw.tiddlyspot.com/#TheBSDLicense|
!Notes
See http://mptw.tiddlyspot.com/#TagglyTagging
***/
//{{{
config.taggly = {

	// for translations
	lingo: {
		labels: {
			asc:        "\u2191", // down arrow
			desc:       "\u2193", // up arrow
			title:      "title",
			modified:   "modified",
			created:    "created",
			show:       "+",
			hide:       "-",
			normal:     "normal",
			group:      "group",
			commas:     "commas",
			sitemap:    "sitemap",
			numCols:    "cols\u00b1", // plus minus sign
			label:      "Tagged as '%0':",
			excerpts:   "excerpts",
			descr:      "descr",
			slices:     "slices",
			contents:   "contents",
			sliders:    "sliders",
			noexcerpts: "title only"
		},

		tooltips: {
			title:    "Click to sort by title",
			modified: "Click to sort by modified date",
			created:  "Click to sort by created date",
			show:     "Click to show tagging list",
			hide:     "Click to hide tagging list",
			normal:   "Click to show a normal ungrouped list",
			group:    "Click to show list grouped by tag",
			sitemap:  "Click to show a sitemap style list",
			commas:   "Click to show a comma separated list",
			numCols:  "Click to change number of columns",
			excerpts: "Click to show excerpts",
			descr:    "Click to show the description slice",
			slices:    "Click to show all slices",
			contents: "Click to show entire tiddler contents",
			sliders:  "Click to show tiddler contents in sliders",
			noexcerpts: "Click to show entire title only"
		}
	},

	config: {
		showTaggingCounts: true,
		listOpts: {
			// the first one will be the default
			sortBy:     ["title","modified","created"],
			sortOrder:  ["asc","desc"],
			hideState:  ["show","hide"],
			listMode:   ["normal","group","sitemap","commas"],
			numCols:    ["1","2","3","4","5","6"],
			excerpts:   ["noexcerpts","excerpts","descr","slices","contents","sliders"]
		},
		valuePrefix: "taggly.",
		excludeTags: ["excludeLists","excludeTagging"],
		excerptSize: 50,
		excerptMarker: "/%"+"%/"
	},

	getTagglyOpt: function(title,opt) {
		var val = store.getValue(title,this.config.valuePrefix+opt);
		return val ? val : this.config.listOpts[opt][0];
	},

	setTagglyOpt: function(title,opt,value) {
		if (!store.tiddlerExists(title))
			// create it silently
			store.saveTiddler(title,title,config.views.editor.defaultText.format([title]),config.options.txtUserName,new Date(),"");
		// if value is default then remove it to save space
		return store.setValue(title,
			this.config.valuePrefix+opt,
			value == this.config.listOpts[opt][0] ? null : value);
	},

	getNextValue: function(title,opt) {
		var current = this.getTagglyOpt(title,opt);
		var pos = this.config.listOpts[opt].indexOf(current);
		// a little usability enhancement. actually it doesn't work right for grouped or sitemap
		var limit = (opt == "numCols" ? store.getTaggedTiddlers(title).length : this.config.listOpts[opt].length);
		var newPos = (pos + 1) % limit;
		return this.config.listOpts[opt][newPos];
	},

	toggleTagglyOpt: function(title,opt) {
		var newVal = this.getNextValue(title,opt);
		this.setTagglyOpt(title,opt,newVal);
	}, 

	createListControl: function(place,title,type) {
		var lingo = config.taggly.lingo;
		var label;
		var tooltip;
		var onclick;

		if ((type == "title" || type == "modified" || type == "created")) {
			// "special" controls. a little tricky. derived from sortOrder and sortBy
			label = lingo.labels[type];
			tooltip = lingo.tooltips[type];

			if (this.getTagglyOpt(title,"sortBy") == type) {
				label += lingo.labels[this.getTagglyOpt(title,"sortOrder")];
				onclick = function() {
					config.taggly.toggleTagglyOpt(title,"sortOrder");
					return false;
				}
			}
			else {
				onclick = function() {
					config.taggly.setTagglyOpt(title,"sortBy",type);
					config.taggly.setTagglyOpt(title,"sortOrder",config.taggly.config.listOpts.sortOrder[0]);
					return false;
				}
			}
		}
		else {
			// "regular" controls, nice and simple
			label = lingo.labels[type == "numCols" ? type : this.getNextValue(title,type)];
			tooltip = lingo.tooltips[type == "numCols" ? type : this.getNextValue(title,type)];
			onclick = function() {
				config.taggly.toggleTagglyOpt(title,type);
				return false;
			}
		}

		// hide button because commas don't have columns
		if (!(this.getTagglyOpt(title,"listMode") == "commas" && type == "numCols"))
			createTiddlyButton(place,label,tooltip,onclick,type == "hideState" ? "hidebutton" : "button");
	},

	makeColumns: function(orig,numCols) {
		var listSize = orig.length;
		var colSize = listSize/numCols;
		var remainder = listSize % numCols;

		var upperColsize = colSize;
		var lowerColsize = colSize;

		if (colSize != Math.floor(colSize)) {
			// it's not an exact fit so..
			upperColsize = Math.floor(colSize) + 1;
			lowerColsize = Math.floor(colSize);
		}

		var output = [];
		var c = 0;
		for (var j=0;j<numCols;j++) {
			var singleCol = [];
			var thisSize = j < remainder ? upperColsize : lowerColsize;
			for (var i=0;i<thisSize;i++) 
				singleCol.push(orig[c++]);
			output.push(singleCol);
		}

		return output;
	},

	drawTable: function(place,columns,theClass) {
		var newTable = createTiddlyElement(place,"table",null,theClass);
		var newTbody = createTiddlyElement(newTable,"tbody");
		var newTr = createTiddlyElement(newTbody,"tr");
		for (var j=0;j<columns.length;j++) {
			var colOutput = "";
			for (var i=0;i<columns[j].length;i++) 
				colOutput += columns[j][i];
			var newTd = createTiddlyElement(newTr,"td",null,"tagglyTagging"); // todo should not need this class
			wikify(colOutput,newTd);
		}
		return newTable;
	},

	createTagglyList: function(place,title) {
		switch(this.getTagglyOpt(title,"listMode")) {
			case "group":  return this.createTagglyListGrouped(place,title); break;
			case "normal": return this.createTagglyListNormal(place,title,false); break;
			case "commas": return this.createTagglyListNormal(place,title,true); break;
			case "sitemap":return this.createTagglyListSiteMap(place,title); break;
		}
	},

	getTaggingCount: function(title) {
		// thanks to Doug Edmunds
		if (this.config.showTaggingCounts) {
			var tagCount = store.getTaggedTiddlers(title).length;
			if (tagCount > 0)
				return " ("+tagCount+")";
		}
		return "";
	},

	getExcerpt: function(inTiddlerTitle,title,indent) {
		if (!indent)
			indent = 1;

		var displayMode = this.getTagglyOpt(inTiddlerTitle,"excerpts");
		var t = store.getTiddler(title);

		if (t && displayMode == "excerpts") {
			var text = t.text.replace(/\n/," ");
			var marker = text.indexOf(this.config.excerptMarker);
			if (marker != -1) {
				return " {{excerpt{<nowiki>" + text.substr(0,marker) + "</nowiki>}}}";
			}
			else if (text.length < this.config.excerptSize) {
				return " {{excerpt{<nowiki>" + t.text + "</nowiki>}}}";
			}
			else {
				return " {{excerpt{<nowiki>" + t.text.substr(0,this.config.excerptSize) + "..." + "</nowiki>}}}";
			}
		}
		else if (t && displayMode == "contents") {
			return "\n{{contents indent"+indent+"{\n" + t.text + "\n}}}";
		}
		else if (t && displayMode == "sliders") {
			return "<slider slide>\n{{contents{\n" + t.text + "\n}}}\n</slider>";
		}
		else if (t && displayMode == "descr") {
			var descr = store.getTiddlerSlice(title,'Description');
			return descr ? " {{excerpt{" + descr  + "}}}" : "";
		}
		else if (t && displayMode == "slices") {
			var result = "";
			var slices = store.calcAllSlices(title);
			for (var s in slices)
				result += "|%0|<nowiki>%1</nowiki>|\n".format([s,slices[s]]);
			return result ? "\n{{excerpt excerptIndent{\n" + result  + "}}}" : "";
		}
		return "";
	},

	notHidden: function(t,inTiddler) {
		if (typeof t == "string") 
			t = store.getTiddler(t);
		return (!t || !t.tags.containsAny(this.config.excludeTags) ||
				(inTiddler && this.config.excludeTags.contains(inTiddler)));
	},

	// this is for normal and commas mode
	createTagglyListNormal: function(place,title,useCommas) {

		var list = store.getTaggedTiddlers(title,this.getTagglyOpt(title,"sortBy"));

		if (this.getTagglyOpt(title,"sortOrder") == "desc")
			list = list.reverse();

		var output = [];
		var first = true;
		for (var i=0;i<list.length;i++) {
			if (this.notHidden(list[i],title)) {
				var countString = this.getTaggingCount(list[i].title);
				var excerpt = this.getExcerpt(title,list[i].title);
				if (useCommas)
					output.push((first ? "" : ", ") + "[[" + list[i].title + "]]" + countString + excerpt);
				else
					output.push("*[[" + list[i].title + "]]" + countString + excerpt + "\n");

				first = false;
			}
		}

		return this.drawTable(place,
			this.makeColumns(output,useCommas ? 1 : parseInt(this.getTagglyOpt(title,"numCols"))),
			useCommas ? "commas" : "normal");
	},

	// this is for the "grouped" mode
	createTagglyListGrouped: function(place,title) {
		var sortBy = this.getTagglyOpt(title,"sortBy");
		var sortOrder = this.getTagglyOpt(title,"sortOrder");

		var list = store.getTaggedTiddlers(title,sortBy);

		if (sortOrder == "desc")
			list = list.reverse();

		var leftOvers = []
		for (var i=0;i<list.length;i++)
			leftOvers.push(list[i].title);

		var allTagsHolder = {};
		for (var i=0;i<list.length;i++) {
			for (var j=0;j<list[i].tags.length;j++) {

				if (list[i].tags[j] != title) { // not this tiddler

					if (this.notHidden(list[i].tags[j],title)) {

						if (!allTagsHolder[list[i].tags[j]])
							allTagsHolder[list[i].tags[j]] = "";

						if (this.notHidden(list[i],title)) {
							allTagsHolder[list[i].tags[j]] += "**[["+list[i].title+"]]"
										+ this.getTaggingCount(list[i].title) + this.getExcerpt(title,list[i].title) + "\n";

							leftOvers.setItem(list[i].title,-1); // remove from leftovers. at the end it will contain the leftovers

						}
					}
				}
			}
		}

		var allTags = [];
		for (var t in allTagsHolder)
			allTags.push(t);

		var sortHelper = function(a,b) {
			if (a == b) return 0;
			if (a < b) return -1;
			return 1;
		};

		allTags.sort(function(a,b) {
			var tidA = store.getTiddler(a);
			var tidB = store.getTiddler(b);
			if (sortBy == "title") return sortHelper(a,b);
			else if (!tidA && !tidB) return 0;
			else if (!tidA) return -1;
			else if (!tidB) return +1;
			else return sortHelper(tidA[sortBy],tidB[sortBy]);
		});

		var leftOverOutput = "";
		for (var i=0;i<leftOvers.length;i++)
			if (this.notHidden(leftOvers[i],title))
				leftOverOutput += "*[["+leftOvers[i]+"]]" + this.getTaggingCount(leftOvers[i]) + this.getExcerpt(title,leftOvers[i]) + "\n";

		var output = [];

		if (sortOrder == "desc")
			allTags.reverse();
		else if (leftOverOutput != "")
			// leftovers first...
			output.push(leftOverOutput);

		for (var i=0;i<allTags.length;i++)
			if (allTagsHolder[allTags[i]] != "")
				output.push("*[["+allTags[i]+"]]" + this.getTaggingCount(allTags[i]) + this.getExcerpt(title,allTags[i]) + "\n" + allTagsHolder[allTags[i]]);

		if (sortOrder == "desc" && leftOverOutput != "")
			// leftovers last...
			output.push(leftOverOutput);

		return this.drawTable(place,
				this.makeColumns(output,parseInt(this.getTagglyOpt(title,"numCols"))),
				"grouped");

	},

	// used to build site map
	treeTraverse: function(title,depth,sortBy,sortOrder) {

		var list = store.getTaggedTiddlers(title,sortBy);
		if (sortOrder == "desc")
			list.reverse();

		var indent = "";
		for (var j=0;j<depth;j++)
			indent += "*"

		var childOutput = "";
		for (var i=0;i<list.length;i++)
			if (list[i].title != title)
				if (this.notHidden(list[i].title,this.config.inTiddler))
					childOutput += this.treeTraverse(list[i].title,depth+1,sortBy,sortOrder);

		if (depth == 0)
			return childOutput;
		else
			return indent + "[["+title+"]]" + this.getTaggingCount(title) + this.getExcerpt(this.config.inTiddler,title,depth) + "\n" + childOutput;
	},

	// this if for the site map mode
	createTagglyListSiteMap: function(place,title) {
		this.config.inTiddler = title; // nasty. should pass it in to traverse probably
		var output = this.treeTraverse(title,0,this.getTagglyOpt(title,"sortBy"),this.getTagglyOpt(title,"sortOrder"));
		return this.drawTable(place,
				this.makeColumns(output.split(/(?=^\*\[)/m),parseInt(this.getTagglyOpt(title,"numCols"))), // regexp magic
				"sitemap"
				);
	},

	macros: {
		tagglyTagging: {
			handler: function (place,macroName,params,wikifier,paramString,tiddler) {
				var refreshContainer = createTiddlyElement(place,"div");
				// do some refresh magic to make it keep the list fresh - thanks Saq
				refreshContainer.setAttribute("refresh","macro");
				refreshContainer.setAttribute("macroName",macroName);
				if (params[0])
					refreshContainer.setAttribute("title",params[0]);
				else {
        			refreshContainer.setAttribute("title",tiddler.title);
				}
				this.refresh(refreshContainer);
			},

			refresh: function(place) {
				var title = place.getAttribute("title");
				removeChildren(place);
				addClass(place,"tagglyTagging");
				if (store.getTaggedTiddlers(title).length > 0) {
					var lingo = config.taggly.lingo;
					config.taggly.createListControl(place,title,"hideState");
					if (config.taggly.getTagglyOpt(title,"hideState") == "show") {
						createTiddlyElement(place,"span",null,"tagglyLabel",lingo.labels.label.format([title]));
						config.taggly.createListControl(place,title,"title");
						config.taggly.createListControl(place,title,"modified");
						config.taggly.createListControl(place,title,"created");
						config.taggly.createListControl(place,title,"listMode");
						config.taggly.createListControl(place,title,"excerpts");
						config.taggly.createListControl(place,title,"numCols");
						config.taggly.createTagglyList(place,title);
					}
				}
			}
		}
	},

	// todo fix these up a bit
	styles: [
"/*{{{*/",
"/* created by TagglyTaggingPlugin */",
".tagglyTagging { padding-top:0.5em; }",
".tagglyTagging li.listTitle { display:none; }",
".tagglyTagging ul {",
"	margin-top:0px; padding-top:0.5em; padding-left:2em;",
"	margin-bottom:0px; padding-bottom:0px;",
"}",
".tagglyTagging { vertical-align: top; margin:0px; padding:0px; }",
".tagglyTagging table { margin:0px; padding:0px; }",
".tagglyTagging .button { visibility:hidden; margin-left:3px; margin-right:3px; }",
".tagglyTagging .button, .tagglyTagging .hidebutton {",
"	color:[[ColorPalette::TertiaryLight]]; font-size:90%;",
"	border:0px; padding-left:0.3em;padding-right:0.3em;",
"}",
".tagglyTagging .button:hover, .hidebutton:hover, ",
".tagglyTagging .button:active, .hidebutton:active  {",
"	border:0px; background:[[ColorPalette::TertiaryPale]]; color:[[ColorPalette::TertiaryDark]];",
"}",
".selected .tagglyTagging .button { visibility:visible; }",
".tagglyTagging .hidebutton { color:[[ColorPalette::Background]]; }",
".selected .tagglyTagging .hidebutton { color:[[ColorPalette::TertiaryLight]] }",
".tagglyLabel { color:[[ColorPalette::TertiaryMid]]; font-size:90%; }",
".tagglyTagging ul {padding-top:0px; padding-bottom:0.5em; margin-left:1em; }",
".tagglyTagging ul ul {list-style-type:disc; margin-left:-1em;}",
".tagglyTagging ul ul li {margin-left:0.5em; }",
".editLabel { font-size:90%; padding-top:0.5em; }",
".tagglyTagging .commas { padding-left:1.8em; }",
"/* not technically tagglytagging but will put them here anyway */",
".tagglyTagged li.listTitle { display:none; }",
".tagglyTagged li { display: inline; font-size:90%; }",
".tagglyTagged ul { margin:0px; padding:0px; }",
".excerpt { color:[[ColorPalette::TertiaryDark]]; }",
".excerptIndent { margin-left:4em; }",
"div.tagglyTagging table,",
"div.tagglyTagging table tr,",
"td.tagglyTagging",
" {border-style:none!important; }",
".tagglyTagging .contents { border-bottom:2px solid [[ColorPalette::TertiaryPale]]; padding:0 1em 1em 0.5em;",
"  margin-bottom:0.5em; }",
".tagglyTagging .indent1  { margin-left:3em;  }",
".tagglyTagging .indent2  { margin-left:4em;  }",
".tagglyTagging .indent3  { margin-left:5em;  }",
".tagglyTagging .indent4  { margin-left:6em;  }",
".tagglyTagging .indent5  { margin-left:7em;  }",
".tagglyTagging .indent6  { margin-left:8em;  }",
".tagglyTagging .indent7  { margin-left:9em;  }",
".tagglyTagging .indent8  { margin-left:10em; }",
".tagglyTagging .indent9  { margin-left:11em; }",
".tagglyTagging .indent10 { margin-left:12em; }",
"/*}}}*/",
		""].join("\n"),

	init: function() {
		merge(config.macros,this.macros);
		config.shadowTiddlers["TagglyTaggingStyles"] = this.styles;
		store.addNotification("TagglyTaggingStyles",refreshStyles);
	}
};

config.taggly.init();

//}}}

/***
InlineSlidersPlugin
By Saq Imtiaz
http://tw.lewcid.org/sandbox/#InlineSlidersPlugin

// syntax adjusted to not clash with NestedSlidersPlugin
// added + syntax to start open instead of closed

***/
//{{{
config.formatters.unshift( {
	name: "inlinesliders",
	// match: "\\+\\+\\+\\+|\\<slider",
	match: "\\<slider",
	// lookaheadRegExp: /(?:\+\+\+\+|<slider) (.*?)(?:>?)\n((?:.|\n)*?)\n(?:====|<\/slider>)/mg,
	lookaheadRegExp: /(?:<slider)(\+?) (.*?)(?:>)\n((?:.|\n)*?)\n(?:<\/slider>)/mg,
	handler: function(w) {
		this.lookaheadRegExp.lastIndex = w.matchStart;
		var lookaheadMatch = this.lookaheadRegExp.exec(w.source)
		if(lookaheadMatch && lookaheadMatch.index == w.matchStart ) {
			var btn = createTiddlyButton(w.output,lookaheadMatch[2] + " "+"\u00BB",lookaheadMatch[2],this.onClickSlider,"button sliderButton");
			var panel = createTiddlyElement(w.output,"div",null,"sliderPanel");
			panel.style.display = (lookaheadMatch[1] == '+' ? "block" : "none");
			wikify(lookaheadMatch[3],panel);
			w.nextMatch = lookaheadMatch.index + lookaheadMatch[0].length;
		}
   },
   onClickSlider : function(e) {
		if(!e) var e = window.event;
		var n = this.nextSibling;
		n.style.display = (n.style.display=="none") ? "block" : "none";
		return false;
	}
});

//}}}

The tweak required in your ViewTemplate (or MptwTheme##ViewTemplate) looks something like this:
{{{
<div macro="showWhenTagged processing">
  <div class='viewer' macro='view text processing'>
</div>
<div macro="else">
  <div class='viewer' macro='view text wikified'></div>
</div>
}}}

(That's a simplified version to demonstrate the technique, see MptwTheme for the version in use here.)

You need HideWhenPlugin of course.
We will get the source from another tiddler. (Edit this tiddler to see how it looks).

<<Processing 'The code is the tiddler text but use the macro so you can see the tiddler contents'>>
Any wiki text here..

<<Processing 

size(200, 200);
smooth();
background(0);
strokeWeight(10);

for(int i = 0; i < width; i++) {
  float r = random(255);
  float x = random(0, width);
  stroke(r, 100);
  line(i, 0, x, height);
}

>>

Or here etc...
size(200, 200);
smooth();
background(0);
strokeWeight(10);

for(int i = 0; i < width; i++) {
  float r = random(255);
  float x = random(0, width);
  stroke(r, 100);
  line(i, 0, x, height);
}
/***
Notice you can see the source code. Requires the comment section to comment out our wiki text (the same as in a typical TiddlyWiki plugin). Edit this tiddler to see what it looks like.

<<Processing>>

***/
//{{{

size(200, 200);
smooth();
background(0);
strokeWeight(10);

for(int i = 0; i < width; i++) {
  float r = random(255);
  float x = random(0, width);
  stroke(r, 100);
  line(i, 0, x, height);
}


//}}}
TiddlyProcessing and the ProcessingjsPlugin were created by Paul Downey. See:
* http://blog.whatfettle.com/2008/05/11/tiddlyprocessing/
* http://whatfettle.com/2008/05/TiddlyProcessing/

This site is to showcase his nice work in an MPTW ~TiddlyWiki.

Note: Processing.js pushes Firefox pretty hard. It's designed for Firefox 3.0. My experience with Firefox 2 is that it will start to act strangely after a bit of time looking at these demos. So be warned.

Of course it wouldn't be possible without:
* http://ejohn.org/blog/processingjs/
* http://www.tiddlywiki.com/

-Simon Baird
/***
|Name:|ToggleTagPlugin|
|Description:|Makes a checkbox which toggles a tag in a tiddler|
|Version:|3.1.0 ($Rev: 4907 $)|
|Date:|$Date: 2008-05-13 03:15:46 +1000 (Tue, 13 May 2008) $|
|Source:|http://mptw.tiddlyspot.com/#ToggleTagPlugin|
|Author:|Simon Baird <simon.baird@gmail.com>|
|License:|http://mptw.tiddlyspot.com/#TheBSDLicense|
!!Usage
{{{<<toggleTag }}}//{{{TagName TiddlerName LabelText}}}//{{{>>}}}
* TagName - the tag to be toggled, default value "checked"
* TiddlerName - the tiddler to toggle the tag in, default value the current tiddler
* LabelText - the text (gets wikified) to put next to the check box, default value is '{{{[[TagName]]}}}' or '{{{[[TagName]] [[TiddlerName]]}}}'
(If a parameter is '.' then the default will be used)
* TouchMod flag - if non empty then touch the tiddlers mod date. Note, can set config.toggleTagAlwaysTouchModDate to always touch mod date
!!Examples
|Code|Description|Example|h
|{{{<<toggleTag>>}}}|Toggles the default tag (checked) in this tiddler|<<toggleTag>>|
|{{{<<toggleTag TagName>>}}}|Toggles the TagName tag in this tiddler|<<toggleTag TagName>>|
|{{{<<toggleTag TagName TiddlerName>>}}}|Toggles the TagName tag in the TiddlerName tiddler|<<toggleTag TagName TiddlerName>>|
|{{{<<toggleTag TagName TiddlerName 'click me'>>}}}|Same but with custom label|<<toggleTag TagName TiddlerName 'click me'>>|
|{{{<<toggleTag . . 'click me'>>}}}|dot means use default value|<<toggleTag . . 'click me'>>|
!!Notes
* If TiddlerName doesn't exist it will be silently created
* Set label to '-' to specify no label
* See also http://mgtd-alpha.tiddlyspot.com/#ToggleTag2
!!Known issues
* Doesn't smoothly handle the case where you toggle a tag in a tiddler that is current open for editing
* Should convert to use named params
***/
//{{{

if (config.toggleTagAlwaysTouchModDate == undefined) config.toggleTagAlwaysTouchModDate = false;

merge(config.macros,{

	toggleTag: {

		createIfRequired: true,
		shortLabel: "[[%0]]",
		longLabel: "[[%0]] [[%1]]",

		handler: function(place,macroName,params,wikifier,paramString,tiddler) {
			var tiddlerTitle = tiddler ? tiddler.title : '';
			var tag   = (params[0] && params[0] != '.') ? params[0] : "checked";
			var title = (params[1] && params[1] != '.') ? params[1] : tiddlerTitle;
			var defaultLabel = (title == tiddlerTitle ? this.shortLabel : this.longLabel);
			var label = (params[2] && params[2] != '.') ? params[2] : defaultLabel;
			var touchMod = (params[3] && params[3] != '.') ? params[3] : "";
			label = (label == '-' ? '' : label); // dash means no label
			var theTiddler = (title == tiddlerTitle ? tiddler : store.getTiddler(title));
			var cb = createTiddlyCheckbox(place, label.format([tag,title]), theTiddler && theTiddler.isTagged(tag), function(e) {
				if (!store.tiddlerExists(title)) {
					if (config.macros.toggleTag.createIfRequired) {
						var content = store.getTiddlerText(title); // just in case it's a shadow
						store.saveTiddler(title,title,content?content:"",config.options.txtUserName,new Date(),null);
					}
					else 
						return false;
				}
				if ((touchMod != "" || config.toggleTagAlwaysTouchModDate) && theTiddler)
						theTiddler.modified = new Date();
				store.setTiddlerTag(title,this.checked,tag);
				return true;
			});
		}
	}
});

//}}}

<<Processing

// All Examples Written by Casey Reas and Ben Fry
// unless otherwise stated.
float theta;   
void setup() {
  size(200,200);
  smooth();
}

void draw() {
  background(0);
  frameRate(30);
  stroke(255);
  // Let's pick an angle 0 to 90 degrees based on the mouse position
  float a = (mouseX / (float) width) * 90f;
  // Convert it to radians
  theta = radians(a);
  // Start the tree from the bottom of the screen
  translate(width/2,height);
  // Draw a line 60 pixels
  line(0,0,0,-60);
  // Move to the end of that line
  translate(0,-60);
  // Start the recursive branching!
  branch(60);

}

void branch(float h) {
  // Each branch will be 2/3rds the size of the previous one
  h *= 0.66f;
  
  // All recursive functions must have an exit condition!!!!
  // Here, ours is when the length of the branch is 2 pixels or less
  if (h > 2) {
    pushMatrix();    // Save the current state of transformation (i.e. where are we now)
    rotate(theta);   // Rotate by theta
    line(0,0,0,-h);  // Draw the branch
    translate(0,-h); // Move to the end of the branch
    branch(h);       // Ok, now call myself to draw two new branches!!
    popMatrix();     // Whenever we get back here, we "pop" in order to restore the previous matrix state
    
    // Repeat the same thing, only branch off to the "left" this time!
    pushMatrix();
    rotate(-theta);
    line(0,0,0,-h);
    translate(0,-h);
    branch(h);
    popMatrix();
  }
}

>>
By Ira Greenberg Using rotate() and triangle() functions generate a pretty flower. Uncomment the line // rotate(rot+=radians(spin)); in the triBlur() function for a nice variation.

<<Processing 

Point[]p = new Point[3];
float shift = 1.0;
float fade = 0;
float fillCol = 0;
float rot = 0;
float spin = 0;

void setup(){
  size(200, 200);
  background(0);
  smooth();
  fade = 255.0/(width/2.0/shift);
  spin = 360.0/(width/2.0/shift);
  p[0] = new Point(-width/2, height/2);
  p[1] = new Point(width/2, height/2);
  p[2] = new Point(0, -height/2);
  noStroke();
  translate(width/2, height/2);
  triBlur();
}

void triBlur(){
  fill(fillCol);
  fillCol+=fade;
  rotate(spin);
  // another interesting variation: uncomment the line below 
  rotate(rot+=radians(spin));
  triangle(p[0].x+=shift, p[0].y-=shift/2, p[1].x-=shift, p[1].y-=shift/2, p[2].x, p[2].y+=shift); 
  if(p[0].x<0){
    // recursive call
    triBlur();
  }
}

>>

Taken from [[basic/triangleflower.html|http://ejohn.org/apps/processing.js/examples/basic/triangleflower.html]]
/***
Contains the stuff you need to use Tiddlyspot
Note you must also have UploadPlugin installed
***/
//{{{

// edit this if you are migrating sites or retrofitting an existing TW
config.tiddlyspotSiteId = 'processing';

// make it so you can by default see edit controls via http
config.options.chkHttpReadOnly = false;
window.readOnly = false; // make sure of it (for tw 2.2)
window.showBackstage = true; // show backstage too

// disable autosave in d3
if (window.location.protocol != "file:")
	config.options.chkGTDLazyAutoSave = false;

// tweak shadow tiddlers to add upload button, password entry box etc
with (config.shadowTiddlers) {
	SiteUrl = 'http://'+config.tiddlyspotSiteId+'.tiddlyspot.com';
	SideBarOptions = SideBarOptions.replace(/(<<saveChanges>>)/,"$1<<tiddler TspotSidebar>>");
	OptionsPanel = OptionsPanel.replace(/^/,"<<tiddler TspotOptions>>");
	DefaultTiddlers = DefaultTiddlers.replace(/^/,"[[WelcomeToTiddlyspot]] ");
	MainMenu = MainMenu.replace(/^/,"[[WelcomeToTiddlyspot]] ");
}

// create some shadow tiddler content
merge(config.shadowTiddlers,{

'WelcomeToTiddlyspot':[
 "This document is a ~TiddlyWiki from tiddlyspot.com.  A ~TiddlyWiki is an electronic notebook that is great for managing todo lists, personal information, and all sorts of things.",
 "",
 "@@font-weight:bold;font-size:1.3em;color:#444; //What now?// &nbsp;&nbsp;@@ Before you can save any changes, you need to enter your password in the form below.  Then configure privacy and other site settings at your [[control panel|http://" + config.tiddlyspotSiteId + ".tiddlyspot.com/controlpanel]] (your control panel username is //" + config.tiddlyspotSiteId + "//).",
 "<<tiddler TspotControls>>",
 "See also GettingStarted.",
 "",
 "@@font-weight:bold;font-size:1.3em;color:#444; //Working online// &nbsp;&nbsp;@@ You can edit this ~TiddlyWiki right now, and save your changes using the \"save to web\" button in the column on the right.",
 "",
 "@@font-weight:bold;font-size:1.3em;color:#444; //Working offline// &nbsp;&nbsp;@@ A fully functioning copy of this ~TiddlyWiki can be saved onto your hard drive or USB stick.  You can make changes and save them locally without being connected to the Internet.  When you're ready to sync up again, just click \"upload\" and your ~TiddlyWiki will be saved back to tiddlyspot.com.",
 "",
 "@@font-weight:bold;font-size:1.3em;color:#444; //Help!// &nbsp;&nbsp;@@ Find out more about ~TiddlyWiki at [[TiddlyWiki.com|http://tiddlywiki.com]].  Also visit [[TiddlyWiki.org|http://tiddlywiki.org]] for documentation on learning and using ~TiddlyWiki. New users are especially welcome on the [[TiddlyWiki mailing list|http://groups.google.com/group/TiddlyWiki]], which is an excellent place to ask questions and get help.  If you have a tiddlyspot related problem email [[tiddlyspot support|mailto:support@tiddlyspot.com]].",
 "",
 "@@font-weight:bold;font-size:1.3em;color:#444; //Enjoy :)// &nbsp;&nbsp;@@ We hope you like using your tiddlyspot.com site.  Please email [[feedback@tiddlyspot.com|mailto:feedback@tiddlyspot.com]] with any comments or suggestions."
].join("\n"),

'TspotControls':[
 "| tiddlyspot password:|<<option pasUploadPassword>>|",
 "| site management:|<<upload http://" + config.tiddlyspotSiteId + ".tiddlyspot.com/store.cgi index.html . .  " + config.tiddlyspotSiteId + ">>//(requires tiddlyspot password)//<br>[[control panel|http://" + config.tiddlyspotSiteId + ".tiddlyspot.com/controlpanel]], [[download (go offline)|http://" + config.tiddlyspotSiteId + ".tiddlyspot.com/download]]|",
 "| links:|[[tiddlyspot.com|http://tiddlyspot.com/]], [[FAQs|http://faq.tiddlyspot.com/]], [[blog|http://tiddlyspot.blogspot.com/]], email [[support|mailto:support@tiddlyspot.com]] & [[feedback|mailto:feedback@tiddlyspot.com]], [[donate|http://tiddlyspot.com/?page=donate]]|"
].join("\n"),

'TspotSidebar':[
 "<<upload http://" + config.tiddlyspotSiteId + ".tiddlyspot.com/store.cgi index.html . .  " + config.tiddlyspotSiteId + ">><html><a href='http://" + config.tiddlyspotSiteId + ".tiddlyspot.com/download' class='button'>download</a></html>"
].join("\n"),

'TspotOptions':[
 "tiddlyspot password:",
 "<<option pasUploadPassword>>",
 ""
].join("\n")

});
//}}}
| !date | !user | !location | !storeUrl | !uploadDir | !toFilename | !backupdir | !origin |
| 15/05/2008 23:19:58 | YourName | [[/|http://processing.tiddlyspot.com/]] | [[store.cgi|http://processing.tiddlyspot.com/store.cgi]] | . | [[index.html | http://processing.tiddlyspot.com/index.html]] | . | ok |
| 15/05/2008 23:22:11 | YourName | [[/|http://processing.tiddlyspot.com/]] | [[store.cgi|http://processing.tiddlyspot.com/store.cgi]] | . | [[index.html | http://processing.tiddlyspot.com/index.html]] | . |
| 15/05/2008 23:29:41 | YourName | [[/|http://processing.tiddlyspot.com/]] | [[store.cgi|http://processing.tiddlyspot.com/store.cgi]] | . | [[index.html | http://processing.tiddlyspot.com/index.html]] | . |
| 15/05/2008 23:30:23 | YourName | [[/|http://processing.tiddlyspot.com/]] | [[store.cgi|http://processing.tiddlyspot.com/store.cgi]] | . | [[index.html | http://processing.tiddlyspot.com/index.html]] | . | ok |
| 16/05/2008 00:19:00 | YourName | [[/|http://processing.tiddlyspot.com/#Clock]] | [[store.cgi|http://processing.tiddlyspot.com/store.cgi]] | . | [[index.html | http://processing.tiddlyspot.com/index.html]] | . |
| 06/07/2008 00:01:39 | YourName | [[/|http://processing.tiddlyspot.com/]] | [[store.cgi|http://processing.tiddlyspot.com/store.cgi]] | . | [[index.html | http://processing.tiddlyspot.com/index.html]] | . | failed |
| 06/07/2008 00:02:35 | YourName | [[/|http://processing.tiddlyspot.com/]] | [[store.cgi|http://processing.tiddlyspot.com/store.cgi]] | . | [[index.html | http://processing.tiddlyspot.com/index.html]] | . |
| 23/09/2008 14:13:07 | YourName | [[/|http://processing.tiddlyspot.com/]] | [[store.cgi|http://processing.tiddlyspot.com/store.cgi]] | . | [[index.html | http://processing.tiddlyspot.com/index.html]] | . | ok |
| 23/09/2008 14:16:45 | YourName | [[/|http://processing.tiddlyspot.com/]] | [[store.cgi|http://processing.tiddlyspot.com/store.cgi]] | . | [[index.html | http://processing.tiddlyspot.com/index.html]] | . |
| 23/09/2008 15:06:01 | YourName | [[/|http://processing.tiddlyspot.com/]] | [[store.cgi|http://processing.tiddlyspot.com/store.cgi]] | . | [[index.html | http://processing.tiddlyspot.com/index.html]] | . |
/***
|''Name:''|PasswordOptionPlugin|
|''Description:''|Extends TiddlyWiki options with non encrypted password option.|
|''Version:''|1.0.2|
|''Date:''|Apr 19, 2007|
|''Source:''|http://tiddlywiki.bidix.info/#PasswordOptionPlugin|
|''Author:''|BidiX (BidiX (at) bidix (dot) info)|
|''License:''|[[BSD open source license|http://tiddlywiki.bidix.info/#%5B%5BBSD%20open%20source%20license%5D%5D ]]|
|''~CoreVersion:''|2.2.0 (Beta 5)|
***/
//{{{
version.extensions.PasswordOptionPlugin = {
	major: 1, minor: 0, revision: 2, 
	date: new Date("Apr 19, 2007"),
	source: 'http://tiddlywiki.bidix.info/#PasswordOptionPlugin',
	author: 'BidiX (BidiX (at) bidix (dot) info',
	license: '[[BSD open source license|http://tiddlywiki.bidix.info/#%5B%5BBSD%20open%20source%20license%5D%5D]]',
	coreVersion: '2.2.0 (Beta 5)'
};

config.macros.option.passwordCheckboxLabel = "Save this password on this computer";
config.macros.option.passwordInputType = "password"; // password | text
setStylesheet(".pasOptionInput {width: 11em;}\n","passwordInputTypeStyle");

merge(config.macros.option.types, {
	'pas': {
		elementType: "input",
		valueField: "value",
		eventName: "onkeyup",
		className: "pasOptionInput",
		typeValue: config.macros.option.passwordInputType,
		create: function(place,type,opt,className,desc) {
			// password field
			config.macros.option.genericCreate(place,'pas',opt,className,desc);
			// checkbox linked with this password "save this password on this computer"
			config.macros.option.genericCreate(place,'chk','chk'+opt,className,desc);			
			// text savePasswordCheckboxLabel
			place.appendChild(document.createTextNode(config.macros.option.passwordCheckboxLabel));
		},
		onChange: config.macros.option.genericOnChange
	}
});

merge(config.optionHandlers['chk'], {
	get: function(name) {
		// is there an option linked with this chk ?
		var opt = name.substr(3);
		if (config.options[opt]) 
			saveOptionCookie(opt);
		return config.options[name] ? "true" : "false";
	}
});

merge(config.optionHandlers, {
	'pas': {
 		get: function(name) {
			if (config.options["chk"+name]) {
				return encodeCookie(config.options[name].toString());
			} else {
				return "";
			}
		},
		set: function(name,value) {config.options[name] = decodeCookie(value);}
	}
});

// need to reload options to load passwordOptions
loadOptionsCookie();

/*
if (!config.options['pasPassword'])
	config.options['pasPassword'] = '';

merge(config.optionsDesc,{
		pasPassword: "Test password"
	});
*/
//}}}

/***
|''Name:''|UploadPlugin|
|''Description:''|Save to web a TiddlyWiki|
|''Version:''|4.1.0|
|''Date:''|May 5, 2007|
|''Source:''|http://tiddlywiki.bidix.info/#UploadPlugin|
|''Documentation:''|http://tiddlywiki.bidix.info/#UploadPluginDoc|
|''Author:''|BidiX (BidiX (at) bidix (dot) info)|
|''License:''|[[BSD open source license|http://tiddlywiki.bidix.info/#%5B%5BBSD%20open%20source%20license%5D%5D ]]|
|''~CoreVersion:''|2.2.0 (#3125)|
|''Requires:''|PasswordOptionPlugin|
***/
//{{{
version.extensions.UploadPlugin = {
	major: 4, minor: 1, revision: 0,
	date: new Date("May 5, 2007"),
	source: 'http://tiddlywiki.bidix.info/#UploadPlugin',
	author: 'BidiX (BidiX (at) bidix (dot) info',
	coreVersion: '2.2.0 (#3125)'
};

//
// Environment
//

if (!window.bidix) window.bidix = {}; // bidix namespace
bidix.debugMode = false;	// true to activate both in Plugin and UploadService
	
//
// Upload Macro
//

config.macros.upload = {
// default values
	defaultBackupDir: '',	//no backup
	defaultStoreScript: "store.php",
	defaultToFilename: "index.html",
	defaultUploadDir: ".",
	authenticateUser: true	// UploadService Authenticate User
};
	
config.macros.upload.label = {
	promptOption: "Save and Upload this TiddlyWiki with UploadOptions",
	promptParamMacro: "Save and Upload this TiddlyWiki in %0",
	saveLabel: "save to web", 
	saveToDisk: "save to disk",
	uploadLabel: "upload"	
};

config.macros.upload.messages = {
	noStoreUrl: "No store URL in parmeters or options",
	usernameOrPasswordMissing: "Username or password missing"
};

config.macros.upload.handler = function(place,macroName,params) {
	if (readOnly)
		return;
	var label;
	if (document.location.toString().substr(0,4) == "http") 
		label = this.label.saveLabel;
	else
		label = this.label.uploadLabel;
	var prompt;
	if (params[0]) {
		prompt = this.label.promptParamMacro.toString().format([this.destFile(params[0], 
			(params[1] ? params[1]:bidix.basename(window.location.toString())), params[3])]);
	} else {
		prompt = this.label.promptOption;
	}
	createTiddlyButton(place, label, prompt, function() {config.macros.upload.action(params);}, null, null, this.accessKey);
};

config.macros.upload.action = function(params)
{
		// for missing macro parameter set value from options
		var storeUrl = params[0] ? params[0] : config.options.txtUploadStoreUrl;
		var toFilename = params[1] ? params[1] : config.options.txtUploadFilename;
		var backupDir = params[2] ? params[2] : config.options.txtUploadBackupDir;
		var uploadDir = params[3] ? params[3] : config.options.txtUploadDir;
		var username = params[4] ? params[4] : config.options.txtUploadUserName;
		var password = config.options.pasUploadPassword; // for security reason no password as macro parameter	
		// for still missing parameter set default value
		if ((!storeUrl) && (document.location.toString().substr(0,4) == "http")) 
			storeUrl = bidix.dirname(document.location.toString())+'/'+config.macros.upload.defaultStoreScript;
		if (storeUrl.substr(0,4) != "http")
			storeUrl = bidix.dirname(document.location.toString()) +'/'+ storeUrl;
		if (!toFilename)
			toFilename = bidix.basename(window.location.toString());
		if (!toFilename)
			toFilename = config.macros.upload.defaultToFilename;
		if (!uploadDir)
			uploadDir = config.macros.upload.defaultUploadDir;
		if (!backupDir)
			backupDir = config.macros.upload.defaultBackupDir;
		// report error if still missing
		if (!storeUrl) {
			alert(config.macros.upload.messages.noStoreUrl);
			clearMessage();
			return false;
		}
		if (config.macros.upload.authenticateUser && (!username || !password)) {
			alert(config.macros.upload.messages.usernameOrPasswordMissing);
			clearMessage();
			return false;
		}
		bidix.upload.uploadChanges(false,null,storeUrl, toFilename, uploadDir, backupDir, username, password); 
		return false; 
};

config.macros.upload.destFile = function(storeUrl, toFilename, uploadDir) 
{
	if (!storeUrl)
		return null;
		var dest = bidix.dirname(storeUrl);
		if (uploadDir && uploadDir != '.')
			dest = dest + '/' + uploadDir;
		dest = dest + '/' + toFilename;
	return dest;
};

//
// uploadOptions Macro
//

config.macros.uploadOptions = {
	handler: function(place,macroName,params) {
		var wizard = new Wizard();
		wizard.createWizard(place,this.wizardTitle);
		wizard.addStep(this.step1Title,this.step1Html);
		var markList = wizard.getElement("markList");
		var listWrapper = document.createElement("div");
		markList.parentNode.insertBefore(listWrapper,markList);
		wizard.setValue("listWrapper",listWrapper);
		this.refreshOptions(listWrapper,false);
		var uploadCaption;
		if (document.location.toString().substr(0,4) == "http") 
			uploadCaption = config.macros.upload.label.saveLabel;
		else
			uploadCaption = config.macros.upload.label.uploadLabel;
		
		wizard.setButtons([
				{caption: uploadCaption, tooltip: config.macros.upload.label.promptOption, 
					onClick: config.macros.upload.action},
				{caption: this.cancelButton, tooltip: this.cancelButtonPrompt, onClick: this.onCancel}
				
			]);
	},
	refreshOptions: function(listWrapper) {
		var uploadOpts = [
			"txtUploadUserName",
			"pasUploadPassword",
			"txtUploadStoreUrl",
			"txtUploadDir",
			"txtUploadFilename",
			"txtUploadBackupDir",
			"chkUploadLog",
			"txtUploadLogMaxLine",
			]
		var opts = [];
		for(i=0; i<uploadOpts.length; i++) {
			var opt = {};
			opts.push()
			opt.option = "";
			n = uploadOpts[i];
			opt.name = n;
			opt.lowlight = !config.optionsDesc[n];
			opt.description = opt.lowlight ? this.unknownDescription : config.optionsDesc[n];
			opts.push(opt);
		}
		var listview = ListView.create(listWrapper,opts,this.listViewTemplate);
		for(n=0; n<opts.length; n++) {
			var type = opts[n].name.substr(0,3);
			var h = config.macros.option.types[type];
			if (h && h.create) {
				h.create(opts[n].colElements['option'],type,opts[n].name,opts[n].name,"no");
			}
		}
		
	},
	onCancel: function(e)
	{
		backstage.switchTab(null);
		return false;
	},
	
	wizardTitle: "Upload with options",
	step1Title: "These options are saved in cookies in your browser",
	step1Html: "<input type='hidden' name='markList'></input><br>",
	cancelButton: "Cancel",
	cancelButtonPrompt: "Cancel prompt",
	listViewTemplate: {
		columns: [
			{name: 'Description', field: 'description', title: "Description", type: 'WikiText'},
			{name: 'Option', field: 'option', title: "Option", type: 'String'},
			{name: 'Name', field: 'name', title: "Name", type: 'String'}
			],
		rowClasses: [
			{className: 'lowlight', field: 'lowlight'} 
			]}
}

//
// upload functions
//

if (!bidix.upload) bidix.upload = {};

if (!bidix.upload.messages) bidix.upload.messages = {
	//from saving
	invalidFileError: "The original file '%0' does not appear to be a valid TiddlyWiki",
	backupSaved: "Backup saved",
	backupFailed: "Failed to upload backup file",
	rssSaved: "RSS feed uploaded",
	rssFailed: "Failed to upload RSS feed file",
	emptySaved: "Empty template uploaded",
	emptyFailed: "Failed to upload empty template file",
	mainSaved: "Main TiddlyWiki file uploaded",
	mainFailed: "Failed to upload main TiddlyWiki file. Your changes have not been saved",
	//specific upload
	loadOriginalHttpPostError: "Can't get original file",
	aboutToSaveOnHttpPost: 'About to upload on %0 ...',
	storePhpNotFound: "The store script '%0' was not found."
};

bidix.upload.uploadChanges = function(onlyIfDirty,tiddlers,storeUrl,toFilename,uploadDir,backupDir,username,password)
{
	var callback = function(status,uploadParams,original,url,xhr) {
		if (!status) {
			displayMessage(bidix.upload.messages.loadOriginalHttpPostError);
			return;
		}
		if (bidix.debugMode) 
			alert(original.substr(0,500)+"\n...");
		// Locate the storeArea div's 
		var posDiv = locateStoreArea(original);
		if((posDiv[0] == -1) || (posDiv[1] == -1)) {
			alert(config.messages.invalidFileError.format([localPath]));
			return;
		}
		bidix.upload.uploadRss(uploadParams,original,posDiv);
	};
	
	if(onlyIfDirty && !store.isDirty())
		return;
	clearMessage();
	// save on localdisk ?
	if (document.location.toString().substr(0,4) == "file") {
		var path = document.location.toString();
		var localPath = getLocalPath(path);
		saveChanges();
	}
	// get original
	var uploadParams = Array(storeUrl,toFilename,uploadDir,backupDir,username,password);
	var originalPath = document.location.toString();
	// If url is a directory : add index.html
	if (originalPath.charAt(originalPath.length-1) == "/")
		originalPath = originalPath + "index.html";
	var dest = config.macros.upload.destFile(storeUrl,toFilename,uploadDir);
	var log = new bidix.UploadLog();
	log.startUpload(storeUrl, dest, uploadDir,  backupDir);
	displayMessage(bidix.upload.messages.aboutToSaveOnHttpPost.format([dest]));
	if (bidix.debugMode) 
		alert("about to execute Http - GET on "+originalPath);
	var r = doHttp("GET",originalPath,null,null,null,null,callback,uploadParams,null);
	if (typeof r == "string")
		displayMessage(r);
	return r;
};

bidix.upload.uploadRss = function(uploadParams,original,posDiv) 
{
	var callback = function(status,params,responseText,url,xhr) {
		if(status) {
			var destfile = responseText.substring(responseText.indexOf("destfile:")+9,responseText.indexOf("\n", responseText.indexOf("destfile:")));
			displayMessage(bidix.upload.messages.rssSaved,bidix.dirname(url)+'/'+destfile);
			bidix.upload.uploadMain(params[0],params[1],params[2]);
		} else {
			displayMessage(bidix.upload.messages.rssFailed);			
		}
	};
	// do uploadRss
	if(config.options.chkGenerateAnRssFeed) {
		var rssPath = uploadParams[1].substr(0,uploadParams[1].lastIndexOf(".")) + ".xml";
		var rssUploadParams = Array(uploadParams[0],rssPath,uploadParams[2],'',uploadParams[4],uploadParams[5]);
		bidix.upload.httpUpload(rssUploadParams,convertUnicodeToUTF8(generateRss()),callback,Array(uploadParams,original,posDiv));
	} else {
		bidix.upload.uploadMain(uploadParams,original,posDiv);
	}
};

bidix.upload.uploadMain = function(uploadParams,original,posDiv) 
{
	var callback = function(status,params,responseText,url,xhr) {
		var log = new bidix.UploadLog();
		if(status) {
			// if backupDir specified
			if ((params[3]) && (responseText.indexOf("backupfile:") > -1))  {
				var backupfile = responseText.substring(responseText.indexOf("backupfile:")+11,responseText.indexOf("\n", responseText.indexOf("backupfile:")));
				displayMessage(bidix.upload.messages.backupSaved,bidix.dirname(url)+'/'+backupfile);
			}
			var destfile = responseText.substring(responseText.indexOf("destfile:")+9,responseText.indexOf("\n", responseText.indexOf("destfile:")));
			displayMessage(bidix.upload.messages.mainSaved,bidix.dirname(url)+'/'+destfile);
			store.setDirty(false);
			log.endUpload("ok");
		} else {
			alert(bidix.upload.messages.mainFailed);
			displayMessage(bidix.upload.messages.mainFailed);
			log.endUpload("failed");			
		}
	};
	// do uploadMain
	var revised = bidix.upload.updateOriginal(original,posDiv);
	bidix.upload.httpUpload(uploadParams,revised,callback,uploadParams);
};

bidix.upload.httpUpload = function(uploadParams,data,callback,params)
{
	var localCallback = function(status,params,responseText,url,xhr) {
		url = (url.indexOf("nocache=") < 0 ? url : url.substring(0,url.indexOf("nocache=")-1));
		if (xhr.status == httpStatus.NotFound)
			alert(bidix.upload.messages.storePhpNotFound.format([url]));
		if ((bidix.debugMode) || (responseText.indexOf("Debug mode") >= 0 )) {
			alert(responseText);
			if (responseText.indexOf("Debug mode") >= 0 )
				responseText = responseText.substring(responseText.indexOf("\n\n")+2);
		} else if (responseText.charAt(0) != '0') 
			alert(responseText);
		if (responseText.charAt(0) != '0')
			status = null;
		callback(status,params,responseText,url,xhr);
	};
	// do httpUpload
	var boundary = "---------------------------"+"AaB03x";	
	var uploadFormName = "UploadPlugin";
	// compose headers data
	var sheader = "";
	sheader += "--" + boundary + "\r\nContent-disposition: form-data; name=\"";
	sheader += uploadFormName +"\"\r\n\r\n";
	sheader += "backupDir="+uploadParams[3] +
				";user=" + uploadParams[4] +
				";password=" + uploadParams[5] +
				";uploaddir=" + uploadParams[2];
	if (bidix.debugMode)
		sheader += ";debug=1";
	sheader += ";;\r\n"; 
	sheader += "\r\n" + "--" + boundary + "\r\n";
	sheader += "Content-disposition: form-data; name=\"userfile\"; filename=\""+uploadParams[1]+"\"\r\n";
	sheader += "Content-Type: text/html;charset=UTF-8" + "\r\n";
	sheader += "Content-Length: " + data.length + "\r\n\r\n";
	// compose trailer data
	var strailer = new String();
	strailer = "\r\n--" + boundary + "--\r\n";
	data = sheader + data + strailer;
	if (bidix.debugMode) alert("about to execute Http - POST on "+uploadParams[0]+"\n with \n"+data.substr(0,500)+ " ... ");
	var r = doHttp("POST",uploadParams[0],data,"multipart/form-data; boundary="+boundary,uploadParams[4],uploadParams[5],localCallback,params,null);
	if (typeof r == "string")
		displayMessage(r);
	return r;
};

// same as Saving's updateOriginal but without convertUnicodeToUTF8 calls
bidix.upload.updateOriginal = function(original, posDiv)
{
	if (!posDiv)
		posDiv = locateStoreArea(original);
	if((posDiv[0] == -1) || (posDiv[1] == -1)) {
		alert(config.messages.invalidFileError.format([localPath]));
		return;
	}
	var revised = original.substr(0,posDiv[0] + startSaveArea.length) + "\n" +
				store.allTiddlersAsHtml() + "\n" +
				original.substr(posDiv[1]);
	var newSiteTitle = getPageTitle().htmlEncode();
	revised = revised.replaceChunk("<title"+">","</title"+">"," " + newSiteTitle + " ");
	revised = updateMarkupBlock(revised,"PRE-HEAD","MarkupPreHead");
	revised = updateMarkupBlock(revised,"POST-HEAD","MarkupPostHead");
	revised = updateMarkupBlock(revised,"PRE-BODY","MarkupPreBody");
	revised = updateMarkupBlock(revised,"POST-SCRIPT","MarkupPostBody");
	return revised;
};

//
// UploadLog
// 
// config.options.chkUploadLog :
//		false : no logging
//		true : logging
// config.options.txtUploadLogMaxLine :
//		-1 : no limit
//      0 :  no Log lines but UploadLog is still in place
//		n :  the last n lines are only kept
//		NaN : no limit (-1)

bidix.UploadLog = function() {
	if (!config.options.chkUploadLog) 
		return; // this.tiddler = null
	this.tiddler = store.getTiddler("UploadLog");
	if (!this.tiddler) {
		this.tiddler = new Tiddler();
		this.tiddler.title = "UploadLog";
		this.tiddler.text = "| !date | !user | !location | !storeUrl | !uploadDir | !toFilename | !backupdir | !origin |";
		this.tiddler.created = new Date();
		this.tiddler.modifier = config.options.txtUserName;
		this.tiddler.modified = new Date();
		store.addTiddler(this.tiddler);
	}
	return this;
};

bidix.UploadLog.prototype.addText = function(text) {
	if (!this.tiddler)
		return;
	// retrieve maxLine when we need it
	var maxLine = parseInt(config.options.txtUploadLogMaxLine,10);
	if (isNaN(maxLine))
		maxLine = -1;
	// add text
	if (maxLine != 0) 
		this.tiddler.text = this.tiddler.text + text;
	// Trunck to maxLine
	if (maxLine >= 0) {
		var textArray = this.tiddler.text.split('\n');
		if (textArray.length > maxLine + 1)
			textArray.splice(1,textArray.length-1-maxLine);
			this.tiddler.text = textArray.join('\n');		
	}
	// update tiddler fields
	this.tiddler.modifier = config.options.txtUserName;
	this.tiddler.modified = new Date();
	store.addTiddler(this.tiddler);
	// refresh and notifiy for immediate update
	story.refreshTiddler(this.tiddler.title);
	store.notify(this.tiddler.title, true);
};

bidix.UploadLog.prototype.startUpload = function(storeUrl, toFilename, uploadDir,  backupDir) {
	if (!this.tiddler)
		return;
	var now = new Date();
	var text = "\n| ";
	var filename = bidix.basename(document.location.toString());
	if (!filename) filename = '/';
	text += now.formatString("0DD/0MM/YYYY 0hh:0mm:0ss") +" | ";
	text += config.options.txtUserName + " | ";
	text += "[["+filename+"|"+location + "]] |";
	text += " [[" + bidix.basename(storeUrl) + "|" + storeUrl + "]] | ";
	text += uploadDir + " | ";
	text += "[[" + bidix.basename(toFilename) + " | " +toFilename + "]] | ";
	text += backupDir + " |";
	this.addText(text);
};

bidix.UploadLog.prototype.endUpload = function(status) {
	if (!this.tiddler)
		return;
	this.addText(" "+status+" |");
};

//
// Utilities
// 

bidix.checkPlugin = function(plugin, major, minor, revision) {
	var ext = version.extensions[plugin];
	if (!
		(ext  && 
			((ext.major > major) || 
			((ext.major == major) && (ext.minor > minor))  ||
			((ext.major == major) && (ext.minor == minor) && (ext.revision >= revision))))) {
			// write error in PluginManager
			if (pluginInfo)
				pluginInfo.log.push("Requires " + plugin + " " + major + "." + minor + "." + revision);
			eval(plugin); // generate an error : "Error: ReferenceError: xxxx is not defined"
	}
};

bidix.dirname = function(filePath) {
	if (!filePath) 
		return;
	var lastpos;
	if ((lastpos = filePath.lastIndexOf("/")) != -1) {
		return filePath.substring(0, lastpos);
	} else {
		return filePath.substring(0, filePath.lastIndexOf("\\"));
	}
};

bidix.basename = function(filePath) {
	if (!filePath) 
		return;
	var lastpos;
	if ((lastpos = filePath.lastIndexOf("#")) != -1) 
		filePath = filePath.substring(0, lastpos);
	if ((lastpos = filePath.lastIndexOf("/")) != -1) {
		return filePath.substring(lastpos + 1);
	} else
		return filePath.substring(filePath.lastIndexOf("\\")+1);
};

bidix.initOption = function(name,value) {
	if (!config.options[name])
		config.options[name] = value;
};

//
// Initializations
//

// require PasswordOptionPlugin 1.0.1 or better
bidix.checkPlugin("PasswordOptionPlugin", 1, 0, 1);

// styleSheet
setStylesheet('.txtUploadStoreUrl, .txtUploadBackupDir, .txtUploadDir {width: 22em;}',"uploadPluginStyles");

//optionsDesc
merge(config.optionsDesc,{
	txtUploadStoreUrl: "Url of the UploadService script (default: store.php)",
	txtUploadFilename: "Filename of the uploaded file (default: in index.html)",
	txtUploadDir: "Relative Directory where to store the file (default: . (downloadService directory))",
	txtUploadBackupDir: "Relative Directory where to backup the file. If empty no backup. (default: ''(empty))",
	txtUploadUserName: "Upload Username",
	pasUploadPassword: "Upload Password",
	chkUploadLog: "do Logging in UploadLog (default: true)",
	txtUploadLogMaxLine: "Maximum of lines in UploadLog (default: 10)"
});

// Options Initializations
bidix.initOption('txtUploadStoreUrl','');
bidix.initOption('txtUploadFilename','');
bidix.initOption('txtUploadDir','');
bidix.initOption('txtUploadBackupDir','');
bidix.initOption('txtUploadUserName','');
bidix.initOption('pasUploadPassword','');
bidix.initOption('chkUploadLog',true);
bidix.initOption('txtUploadLogMaxLine','10');


/* don't want this for tiddlyspot sites

// Backstage
merge(config.tasks,{
	uploadOptions: {text: "upload", tooltip: "Change UploadOptions and Upload", content: '<<uploadOptions>>'}
});
config.backstageTasks.push("uploadOptions");

*/


//}}}