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Smooth GDragging at last. Thanks to overstdr for digging up the getDragObject method. With v2.93 and later we no longer get flickers on panning. Non-API smooth dragging is no longer supported. r=crschmidt,me (closes #1402)

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git-svn-id: http://svn.openlayers.org/trunk/openlayers@6492 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
This commit is contained in:
Tim Schaub
2008-03-11 18:32:17 +00:00
parent 008c820e2b
commit d12fd7c04c
6 changed files with 47 additions and 45 deletions
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22
lib/OpenLayers/Map.js
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@@ -1317,27 +1317,33 @@ OpenLayers.Map = OpenLayers.Class({
* Parameters:
* dx - {Integer}
* dy - {Integer}
* options - {Object} Only one at this time: "animate", which uses
* panTo instead of setCenter. Default is true.
* options - {Object} Options to configure panning:
* - *animate* {Boolean} Use panTo instead of setCenter. Default is true.
* - *dragging* {Boolean} Call setCenter with dragging true. Default is
* false.
*/
pan: function(dx, dy, options) {
// this should be pushed to applyDefaults and extend
if (!options) {
options = {animate: true}
}
options = {};
}
OpenLayers.Util.applyDefaults(options, {
animate: true,
dragging: false
});
// getCenter
var centerPx = this.getViewPortPxFromLonLat(this.getCenter());
// adjust
var newCenterPx = centerPx.add(dx, dy);
// only call setCenter if there has been a change
if (!newCenterPx.equals(centerPx)) {
// only call setCenter if not dragging or there has been a change
if (!options.dragging || !newCenterPx.equals(centerPx)) {
var newCenterLonLat = this.getLonLatFromViewPortPx(newCenterPx);
if (options.animate) {
this.panTo(newCenterLonLat);
} else {
this.setCenter(newCenterLonLat);
this.setCenter(newCenterLonLat, null, options.dragging);
}
}