Mega Code Archive
Create, position, and size the slider and its two children (_track and _thumb) make the thumb drag-repositionable
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<!-- The following code is revised from SmartClient demo code(SmartClient_70rc2_LGPL.zip).-->
<HTML><HEAD>
<SCRIPT>var isomorphicDir = "isomorphic/";</SCRIPT>
<SCRIPT SRC=isomorphic/system/modules/ISC_Core.js></SCRIPT>
<SCRIPT SRC=isomorphic/system/modules/ISC_Foundation.js></SCRIPT>
<SCRIPT SRC=isomorphic/system/modules/ISC_Containers.js></SCRIPT>
<SCRIPT SRC=isomorphic/system/modules/ISC_Grids.js></SCRIPT>
<SCRIPT SRC=isomorphic/system/modules/ISC_Forms.js></SCRIPT>
<SCRIPT SRC=isomorphic/system/modules/ISC_DataBinding.js></SCRIPT>
<SCRIPT SRC=isomorphic/skins/standard/load_skin.js></SCRIPT>
<SCRIPT>
/*----------> SimpleSlider_1.js <----------*/
// Step 1
// * create, position, and size the slider and its two children (_track and _thumb)
// * make the thumb drag-repositionable, just for fun
ClassFactory.defineClass("SimpleSlider", Canvas);
SimpleSlider.addProperties({
length:200,
vertical:true,
thumbThickWidth:30,
thumbThinWidth:10,
trackWidth:4,
initWidget : function () {
this.Super("initWidget", arguments);
var width, height;
if (this.vertical) {
width = Math.max(this.thumbThickWidth, this.trackWidth);
height = this.length;
} else {
width = this.length;
height = Math.max(this.thumbThickWidth, this.trackWidth);
}
this.setWidth(width);
this.setHeight(height);
this._usableLength = this.length-this.thumbThinWidth;
this._track = this.addChild(this._createTrack());
this._thumb = this.addChild(this._createThumb());
},
_createTrack : function () {
return Canvas.create({
autoDraw:false,
left:(this.vertical ? Math.floor((this.getWidth() - this.trackWidth)/2) : 0),
top:(this.vertical ? 0 : Math.floor((this.getHeight() - this.trackWidth)/2)),
width:(this.vertical ? this.trackWidth : this.getWidth()),
height:(this.vertical ? this.getHeight() : this.trackWidth),
vertical:this.vertical,
backgroundColor:"#666666",
overflow:Canvas.HIDDEN
});
},
_createThumb : function () {
return Canvas.create({
autoDraw:false,
left:(this.vertical ? Math.floor((this.getWidth() - this.thumbThickWidth)/2) : 0),
top:(this.vertical ? 0 : Math.floor((this.getHeight() - this.thumbThickWidth)/2)),
width:(this.vertical ? this.thumbThickWidth : this.thumbThinWidth),
height:(this.vertical ? this.thumbThinWidth : this.thumbThickWidth),
canDragReposition:true,
dragAppearance:EventHandler.TARGET,
backgroundColor:"#AAAAAA"
});
}
});
</SCRIPT>
</HEAD><BODY BGCOLOR='powderblue'>
<SCRIPT>
//--------------------------------------------------
// sliders
//--------------------------------------------------
SimpleSlider.create({
ID:"vSlider",
left:100,
top:100
});
SimpleSlider.create({
ID:"hSlider",
left:300,
top:180,
vertical:false
});
</SCRIPT>
</BODY>
</HTML>
]]>