diff options
Diffstat (limited to 'js/dojo-1.6/dojox/drawing/plugins/tools/Zoom.js')
| -rw-r--r-- | js/dojo-1.6/dojox/drawing/plugins/tools/Zoom.js | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/js/dojo-1.6/dojox/drawing/plugins/tools/Zoom.js b/js/dojo-1.6/dojox/drawing/plugins/tools/Zoom.js new file mode 100644 index 0000000..1410599 --- /dev/null +++ b/js/dojo-1.6/dojox/drawing/plugins/tools/Zoom.js @@ -0,0 +1,136 @@ +/*
+ 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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