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Implement ol.control.DragPan

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This commit is contained in:
Tom Payne
2012-07-18 23:59:58 +02:00
parent 4299cf4fae
commit 1d6101a5a1
1 changed files with 9 additions and 22 deletions
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31
src/ol/control/dragpan.js
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@@ -1,5 +1,7 @@
goog.provide('ol.control.DragPan');
goog.require('goog.functions');
goog.require('goog.math.Coordinate');
goog.require('ol.MapBrowserEvent');
goog.require('ol.control.Drag');
@@ -19,31 +21,16 @@ goog.inherits(ol.control.DragPan, ol.control.Drag);
* @inheritDoc
*/
ol.control.DragPan.prototype.handleDrag = function(event) {
window.console.log(
'drag delta (' + this.deltaX + ', ' + this.deltaY + ')');
var map = event.map;
var resolution = map.getResolution();
var center = new goog.math.Coordinate(
this.startCenter.x - resolution * this.deltaX,
this.startCenter.y + resolution * this.deltaY);
map.setCenter(center);
};
/**
* @inheritDoc
*/
ol.control.DragPan.prototype.handleDragEnd = function(event) {
window.console.log(
'drag end at delta (' + this.deltaX + ', ' + this.deltaY + ')');
};
/**
* @inheritDoc
*/
ol.control.DragPan.prototype.handleDragStart = function(event) {
var browserEventObject = event.getBrowserEventObject();
if (browserEventObject.shiftKey) {
window.console.log('not starting drag while shift key is pressed');
return false;
} else {
window.console.log(
'drag start at (' + this.startX + ', ' + this.startY + ')');
return true;
}
};
ol.control.DragPan.prototype.handleDragStart = goog.functions.TRUE;