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Merge pull request #800 from ahocevar/transform

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Use GPU where available; animated zooming. r=@elemoine
This commit is contained in:
ahocevar
2013-02-14 01:15:18 -08:00
parent 18b0c5fc7d d0249643b3
commit 4b163e0482
23 changed files with 491 additions and 173 deletions
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20
lib/OpenLayers/Control/Navigation.js
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@@ -245,8 +245,7 @@ OpenLayers.Control.Navigation = OpenLayers.Class(OpenLayers.Control, {
* evt - {Event}
*/
defaultDblClick: function (evt) {
var newCenter = this.map.getLonLatFromViewPortPx( evt.xy );
this.map.setCenter(newCenter, this.map.zoom + 1);
this.map.zoomTo(this.map.zoom + 1, evt.xy);
},
/**
@@ -256,8 +255,7 @@ OpenLayers.Control.Navigation = OpenLayers.Class(OpenLayers.Control, {
* evt - {Event}
*/
defaultDblRightClick: function (evt) {
var newCenter = this.map.getLonLatFromViewPortPx( evt.xy );
this.map.setCenter(newCenter, this.map.zoom - 1);
this.map.zoomTo(this.map.zoom - 1, evt.xy);
},
/**
@@ -271,22 +269,14 @@ OpenLayers.Control.Navigation = OpenLayers.Class(OpenLayers.Control, {
if (!this.map.fractionalZoom) {
deltaZ = Math.round(deltaZ);
}
var currentZoom = this.map.getZoom();
var newZoom = this.map.getZoom() + deltaZ;
var currentZoom = this.map.getZoom(),
newZoom = currentZoom + deltaZ;
newZoom = Math.max(newZoom, 0);
newZoom = Math.min(newZoom, this.map.getNumZoomLevels());
if (newZoom === currentZoom) {
return;
}
var size = this.map.getSize();
var deltaX = size.w/2 - evt.xy.x;
var deltaY = evt.xy.y - size.h/2;
var newRes = this.map.baseLayer.getResolutionForZoom(newZoom);
var zoomPoint = this.map.getLonLatFromPixel(evt.xy);
var newCenter = new OpenLayers.LonLat(
zoomPoint.lon + deltaX * newRes,
zoomPoint.lat + deltaY * newRes );
this.map.setCenter( newCenter, newZoom );
this.map.zoomTo(newZoom, evt.xy);
},
/**