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function initialize()
{
var goo = google.maps,
map_in = new goo.Map(document.getElementById('map_in'),
{ zoom: 12,
center: new goo.LatLng(32.344, 51.048)
}),
map_out = new goo.Map(document.getElementById('map_out'),
{ zoom: 12,
center: new goo.LatLng(32.344, 51.048)
}),
shapes = [],
selected_shape = null,
drawman = new goo.drawing.DrawingManager({map:map_in}),
byId = function(s){return document.getElementById(s)},
clearSelection = function(){
if(selected_shape){
selected_shape.set((selected_shape.type
===
google.maps.drawing.OverlayType.MARKER
)?'draggable':'editable',false);
selected_shape = null;
}
},
setSelection = function(shape){
clearSelection();
selected_shape=shape;
selected_shape.set((selected_shape.type
===
google.maps.drawing.OverlayType.MARKER
)?'draggable':'editable',true);
},
clearShapes = function(){
for(var i=0;i<shapes.length;++i){
shapes[i].setMap(null);
}
shapes=[];
};
map_in.bindTo('center',map_out,'center');
map_in.bindTo('zoom',map_out,'zoom');
goo.event.addListener(drawman, 'overlaycomplete', function(e) {
var shape = e.overlay;
shape.type = e.type;
goo.event.addListener(shape, 'click', function() {
setSelection(this);
});
setSelection(shape);
shapes.push(shape);
});
goo.event.addListener(map_in, 'click',clearSelection);
goo.event.addDomListener(byId('clear_shapes'), 'click', clearShapes);
goo.event.addDomListener(byId('save_encoded'), 'click', function(){
var data=IO.IN(shapes,true);byId('data').value=JSON.stringify(data);});
goo.event.addDomListener(byId('save_raw'), 'click', function(){
var data=IO.IN(shapes,false);byId('data').value=JSON.stringify(data);});
goo.event.addDomListener(byId('restore'), 'click', function(){
if(this.shapes){
for(var i=0;i<this.shapes.length;++i){
this.shapes[i].setMap(null);
}
}
this.shapes=IO.OUT(JSON.parse(byId('data').value),map_out);
});
}
var IO={
//returns array with storable google.maps.Overlay-definitions
IN:function(arr,//array with google.maps.Overlays
encoded//boolean indicating whether pathes should be stored encoded
){
var shapes = [],
goo=google.maps,
shape,tmp;
for(var i = 0; i < arr.length; i++)
{
shape=arr[i];
tmp={type:this.t_(shape.type),id:shape.id||null};
switch(tmp.type){
case 'CIRCLE':
tmp.radius=shape.getRadius();
tmp.geometry=this.p_(shape.getCenter());
break;
case 'MARKER':
tmp.geometry=this.p_(shape.getPosition());
break;
case 'RECTANGLE':
tmp.geometry=this.b_(shape.getBounds());
break;
case 'POLYLINE':
tmp.geometry=this.l_(shape.getPath(),encoded);
break;
case 'POLYGON':
tmp.geometry=this.m_(shape.getPaths(),encoded);
break;
}
shapes.push(tmp);
}
return shapes;
},
//returns array with google.maps.Overlays
OUT:function(arr,//array containg the stored shape-definitions
map//map where to draw the shapes
){
var shapes = [],
goo=google.maps,
map=map||null,
shape,tmp;
for(var i = 0; i < arr.length; i++)
{
shape=arr[i];
switch(shape.type){
case 'CIRCLE':
tmp=new goo.Circle({radius:Number(shape.radius),center:this.pp_.apply(this,shape.geometry)});
break;
case 'MARKER':
tmp=new goo.Marker({position:this.pp_.apply(this,shape.geometry)});
break;
case 'RECTANGLE':
tmp=new goo.Rectangle({bounds:this.bb_.apply(this,shape.geometry)});
break;
case 'POLYLINE':
tmp=new goo.Polyline({path:this.ll_(shape.geometry)});
break;
case 'POLYGON':
tmp=new goo.Polygon({paths:this.mm_(shape.geometry)});
break;
}
tmp.setValues({map:map,id:shape.id})
shapes.push(tmp);
}
return shapes;
},
l_:function(path,e){
path=(path.getArray)?path.getArray():path;
if(e){
return google.maps.geometry.encoding.encodePath(path);
}else{
var r=[];
for(var i=0;i<path.length;++i){
r.push(this.p_(path[i]));
}
return r;
}
},
ll_:function(path){
if(typeof path==='string'){
return google.maps.geometry.encoding.decodePath(path);
}
else{
var r=[];
for(var i=0;i<path.length;++i){
r.push(this.pp_.apply(this,path[i]));
}
return r;
}
},
m_:function(paths,e){
var r=[];
paths=(paths.getArray)?paths.getArray():paths;
for(var i=0;i<paths.length;++i){
r.push(this.l_(paths[i],e));
}
return r;
},
mm_:function(paths){
var r=[];
for(var i=0;i<paths.length;++i){
r.push(this.ll_.call(this,paths[i]));
}
return r;
},
p_:function(latLng){
return([latLng.lat(),latLng.lng()]);
},
pp_:function(lat,lng){
return new google.maps.LatLng(lat,lng);
},
b_:function(bounds){
return([this.p_(bounds.getSouthWest()),
this.p_(bounds.getNorthEast())]);
},
bb_:function(sw,ne){
return new google.maps.LatLngBounds(this.pp_.apply(this,sw),
this.pp_.apply(this,ne));
},
t_:function(s){
var t=['CIRCLE','MARKER','RECTANGLE','POLYLINE','POLYGON'];
for(var i=0;i<t.length;++i){
if(s===google.maps.drawing.OverlayType[t[i]]){
return t[i];
}
}
}
}
google.maps.event.addDomListener(window, 'load', initialize); |
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