Andrej Cimperšek - diploma

/*

        Copyright (c) 2004-2010, 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.Pan"]){

dojo._hasResource["dojox.drawing.plugins.tools.Pan"]=true;

dojo.provide("dojox.drawing.plugins.tools.Pan");

dojo.require("dojox.drawing.plugins._Plugin");

dojox.drawing.plugins.tools.Pan=dojox.drawing.util.oo.declare(dojox.drawing.plugins._Plugin,function(_1){

this.domNode=_1.node;

var _2;

this.toolbar=_1.scope;

this.connect(this.toolbar,"onToolClick",this,function(){

this.onSetPan(false);

});

this.connect(this.keys,"onKeyUp",this,"onKeyUp");

this.connect(this.keys,"onKeyDown",this,"onKeyDown");

this.connect(this.keys,"onArrow",this,"onArrow");

this.connect(this.anchors,"onAnchorUp",this,"checkBounds");

this.connect(this.stencils,"register",this,"checkBounds");

this.connect(this.canvas,"resize",this,"checkBounds");

this.connect(this.canvas,"setZoom",this,"checkBounds");

this.connect(this.canvas,"onScroll",this,function(){

if(this._blockScroll){

this._blockScroll=false;

return;

}

_2&&clearTimeout(_2);

_2=setTimeout(dojo.hitch(this,"checkBounds"),200);

});

this._mouseHandle=this.mouse.register(this);

},{selected:false,keyScroll:false,type:"dojox.drawing.plugins.tools.Pan",onPanUp:function(_3){

if(_3.id==this.button.id){

this.onSetPan(false);

}

},onKeyUp:function(_4){

switch(_4.keyCode){

case 32:

this.onSetPan(false);

break;

case 39:

case 37:

case 38:

case 40:

clearInterval(this._timer);

break;

}

},onKeyDown:function(_5){

if(_5.keyCode==32){

this.onSetPan(true);

}

},interval:20,onArrow:function(_6){

if(this._timer){

clearInterval(this._timer);

}

this._timer=setInterval(dojo.hitch(this,function(_7){

this.canvas.domNode.parentNode.scrollLeft+=_7.x*10;

this.canvas.domNode.parentNode.scrollTop+=_7.y*10;

},_6),this.interval);

},onSetPan:function(_8){

if(_8===true||_8===false){

this.selected=!_8;

}

if(this.selected){

this.selected=false;

this.button.deselect();

}else{

this.selected=true;

this.button.select();

}

this.mouse.setEventMode(this.selected?"pan":"");

},onPanDrag:function(_9){

var x=_9.x-_9.last.x;

var y=_9.y-_9.last.y;

this.canvas.domNode.parentNode.scrollTop-=_9.move.y;

this.canvas.domNode.parentNode.scrollLeft-=_9.move.x;

this.canvas.onScroll();

},onUp:function(_a){

if(_a.withinCanvas){

this.keyScroll=true;

}else{

this.keyScroll=false;

}

},onStencilUp:function(_b){

this.checkBounds();

},onStencilDrag:function(_c){

},checkBounds:function(){

var _d=function(){

};

var _e=function(){

};

var t=Infinity,r=-Infinity,b=-10000,l=10000,sx=0,sy=0,dy=0,dx=0,mx=this.stencils.group?this.stencils.group.getTransform():{dx:0,dy:0},sc=this.mouse.scrollOffset(),_f=sc.left?10:0,scX=sc.top?10:0,ch=this.canvas.height,cw=this.canvas.width,z=this.canvas.zoom,pch=this.canvas.parentHeight,pcw=this.canvas.parentWidth;

this.stencils.withSelected(function(m){

var o=m.getBounds();

_e("SEL BOUNDS:",o);

t=Math.min(o.y1+mx.dy,t);

r=Math.max(o.x2+mx.dx,r);

b=Math.max(o.y2+mx.dy,b);

l=Math.min(o.x1+mx.dx,l);

});

this.stencils.withUnselected(function(m){

var o=m.getBounds();

_e("UN BOUNDS:",o);

t=Math.min(o.y1,t);

r=Math.max(o.x2,r);

b=Math.max(o.y2,b);

l=Math.min(o.x1,l);

_d("----------- B:",b,o.y2);

});

b*=z;

var _10=0,_11=0;

_d("Bottom test","b:",b,"z:",z,"ch:",ch,"pch:",pch,"top:",sc.top,"sy:",sy,"mx.dy:",mx.dy);

if(b>pch||sc.top){

_d("*bottom scroll*");

ch=Math.max(b,pch+sc.top);

sy=sc.top;

_10+=this.canvas.getScrollWidth();

}else{

if(!sy&&ch>pch){

_d("*bottom remove*");

ch=pch;

}

}

r*=z;

if(r>pcw||sc.left){

cw=Math.max(r,pcw+sc.left);

sx=sc.left;

_11+=this.canvas.getScrollWidth();

}else{

if(!sx&&cw>pcw){

cw=pcw;

}

}

cw+=_10*2;

ch+=_11*2;

this._blockScroll=true;

this.stencils.group&&this.stencils.group.applyTransform({dx:dx,dy:dy});

this.stencils.withUnselected(function(m){

m.transformPoints({dx:dx,dy:dy});

});

this.canvas.setDimensions(cw,ch,sx,sy);

}});

dojox.drawing.plugins.tools.Pan.setup={name:"dojox.drawing.plugins.tools.Pan",tooltip:"Pan Tool",iconClass:"iconPan",button:false};

dojox.drawing.register(dojox.drawing.plugins.tools.Pan.setup,"plugin");

}