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/*
Copyright (c) 2004-2011, The Dojo Foundation All Rights Reserved.
Available via Academic Free License >= 2.1 OR the modified BSD license.
see: http://dojotoolkit.org/license for details
*/
if(!dojo._hasResource["dojox.drawing.plugins.tools.Zoom"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
dojo._hasResource["dojox.drawing.plugins.tools.Zoom"] = true;
dojo.provide("dojox.drawing.plugins.tools.Zoom");
dojo.require("dojox.drawing.plugins._Plugin");
(function(){
//
// zoomInc: Float
// The amount of zoom that will occur upon each click.
var zoomInc = Math.pow(2.0,0.25),
//
// maxZoom: Number
// The maximum the canvas can be zoomed in. 10 = 1000%
maxZoom = 10,
//
// minZoom: Float
// The most the canvas can be zoomed out. .1 = 10%
minZoom = 0.1,
//
// zoomFactor: [readonly] Float
// The current zoom amount
zoomFactor = 1,
dt = dojox.drawing.plugins.tools;
dt.ZoomIn = dojox.drawing.util.oo.declare(
// summary:
// A plugin that allows for zooming the canvas in and out. An
// action-tool is added to the toolbar with plus, minus and 100%
// buttons.
//
function(options){
// mix in private vars
},
{}
);
dt.ZoomIn = dojox.drawing.util.oo.declare(
// summary:
dojox.drawing.plugins._Plugin,
function(options){
},
{
type:"dojox.drawing.plugins.tools.ZoomIn",
onZoomIn: function(){
// summary:
// Handles zoom in.
//
zoomFactor *= zoomInc;
zoomFactor = Math.min(zoomFactor, maxZoom);
this.canvas.setZoom(zoomFactor);
this.mouse.setZoom(zoomFactor);
},
onClick: function(){
this.onZoomIn();
}
}
);
dt.Zoom100 = dojox.drawing.util.oo.declare(
// summary:
dojox.drawing.plugins._Plugin,
function(options){
},
{
type:"dojox.drawing.plugins.tools.Zoom100",
onZoom100: function(){
// summary:
// Zooms to 100%
//
zoomFactor = 1;
this.canvas.setZoom(zoomFactor);
this.mouse.setZoom(zoomFactor);
},
onClick: function(){
this.onZoom100();
}
}
);
dt.ZoomOut = dojox.drawing.util.oo.declare(
// summary:
dojox.drawing.plugins._Plugin,
function(options){
},
{
type:"dojox.drawing.plugins.tools.ZoomOut",
onZoomOut: function(){
// summary:
// Handles zoom out.
//
zoomFactor /= zoomInc;
zoomFactor = Math.max(zoomFactor, minZoom);
this.canvas.setZoom(zoomFactor);
this.mouse.setZoom(zoomFactor);
},
onClick: function(){
this.onZoomOut();
}
}
);
dt.ZoomIn.setup = {
name:"dojox.drawing.plugins.tools.ZoomIn",
tooltip:"Zoom In"
};
dojox.drawing.register(dt.ZoomIn.setup, "plugin");
dt.Zoom100.setup = {
name:"dojox.drawing.plugins.tools.Zoom100",
tooltip:"Zoom to 100%"
};
dojox.drawing.register(dt.Zoom100.setup, "plugin");
dt.ZoomOut.setup = {
name:"dojox.drawing.plugins.tools.ZoomOut",
tooltip:"Zoom In"
};
dojox.drawing.register(dt.ZoomOut.setup, "plugin");
})();
}
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