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root / trunk / web / dojo / dojox / drawing / ui / dom / Pan.js

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/*
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        Copyright (c) 2004-2010, The Dojo Foundation All Rights Reserved.
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        Available via Academic Free License >= 2.1 OR the modified BSD license.
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        see: http://dojotoolkit.org/license for details
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*/
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if(!dojo._hasResource["dojox.drawing.ui.dom.Pan"]){
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dojo._hasResource["dojox.drawing.ui.dom.Pan"]=true;
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dojo.provide("dojox.drawing.ui.dom.Pan");
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dojo.require("dojox.drawing.plugins._Plugin");
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dojo.deprecated("dojox.drawing.ui.dom.Pan","It may not even make it to the 1.4 release.",1.4);
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dojox.drawing.ui.dom.Pan=dojox.drawing.util.oo.declare(dojox.drawing.plugins._Plugin,function(_1){
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this.domNode=_1.node;
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var _2;
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dojo.connect(this.domNode,"click",this,"onSetPan");
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dojo.connect(this.keys,"onKeyUp",this,"onKeyUp");
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dojo.connect(this.keys,"onKeyDown",this,"onKeyDown");
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dojo.connect(this.anchors,"onAnchorUp",this,"checkBounds");
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dojo.connect(this.stencils,"register",this,"checkBounds");
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dojo.connect(this.canvas,"resize",this,"checkBounds");
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dojo.connect(this.canvas,"setZoom",this,"checkBounds");
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dojo.connect(this.canvas,"onScroll",this,function(){
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if(this._blockScroll){
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this._blockScroll=false;
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return;
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}
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_2&&clearTimeout(_2);
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_2=setTimeout(dojo.hitch(this,"checkBounds"),200);
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});
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this._mouseHandle=this.mouse.register(this);
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},{selected:false,type:"dojox.drawing.ui.dom.Pan",onKeyUp:function(_3){
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if(_3.keyCode==32){
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this.onSetPan(false);
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}
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},onKeyDown:function(_4){
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if(_4.keyCode==32){
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this.onSetPan(true);
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}
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},onSetPan:function(_5){
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if(_5===true||_5===false){
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this.selected=!_5;
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}
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if(this.selected){
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this.selected=false;
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dojo.removeClass(this.domNode,"selected");
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}else{
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this.selected=true;
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dojo.addClass(this.domNode,"selected");
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}
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this.mouse.setEventMode(this.selected?"pan":"");
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},onPanDrag:function(_6){
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var x=_6.x-_6.last.x;
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var y=_6.y-_6.last.y;
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this.canvas.domNode.parentNode.scrollTop-=_6.move.y;
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this.canvas.domNode.parentNode.scrollLeft-=_6.move.x;
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this.canvas.onScroll();
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},onStencilUp:function(_7){
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this.checkBounds();
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},onStencilDrag:function(_8){
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},checkBounds:function(){
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var _9=function(){
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};
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var _a=function(){
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};
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var t=Infinity,r=-Infinity,b=-Infinity,l=Infinity,sx=0,sy=0,dy=0,dx=0,mx=this.stencils.group?this.stencils.group.getTransform():{dx:0,dy:0},sc=this.mouse.scrollOffset(),_b=sc.left?10:0,_c=sc.top?10:0,ch=this.canvas.height,cw=this.canvas.width,z=this.canvas.zoom,_d=this.canvas.parentHeight,_e=this.canvas.parentWidth;
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this.stencils.withSelected(function(m){
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var o=m.getBounds();
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_a("SEL BOUNDS:",o);
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t=Math.min(o.y1+mx.dy,t);
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r=Math.max(o.x2+mx.dx,r);
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b=Math.max(o.y2+mx.dy,b);
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l=Math.min(o.x1+mx.dx,l);
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});
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this.stencils.withUnselected(function(m){
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var o=m.getBounds();
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_a("UN BOUNDS:",o);
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t=Math.min(o.y1,t);
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r=Math.max(o.x2,r);
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b=Math.max(o.y2,b);
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l=Math.min(o.x1,l);
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});
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b*=z;
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var _f=0,_10=0;
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_9("Bottom test","b:",b,"z:",z,"ch:",ch,"pch:",_d,"top:",sc.top,"sy:",sy);
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if(b>_d||sc.top){
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_9("*bottom scroll*");
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ch=Math.max(b,_d+sc.top);
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sy=sc.top;
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_f+=this.canvas.getScrollWidth();
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}else{
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if(!sy&&ch>_d){
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_9("*bottom remove*");
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ch=_d;
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}
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}
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r*=z;
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if(r>_e||sc.left){
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cw=Math.max(r,_e+sc.left);
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sx=sc.left;
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_10+=this.canvas.getScrollWidth();
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}else{
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if(!sx&&cw>_e){
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cw=_e;
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}
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}
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cw+=_f*2;
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ch+=_10*2;
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this._blockScroll=true;
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this.stencils.group&&this.stencils.group.applyTransform({dx:dx,dy:dy});
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this.stencils.withUnselected(function(m){
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m.transformPoints({dx:dx,dy:dy});
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});
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this.canvas.setDimensions(cw,ch,sx,sy);
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}});
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dojox.drawing.ui.dom.Pan.setup={name:"dojox.drawing.ui.dom.Pan",tooltip:"Pan Tool",iconClass:"iconPan"};
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dojox.drawing.register(dojox.drawing.ui.dom.Pan.setup,"plugin");
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}