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Add drag box in shift drag zoom control

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This commit is contained in:
Tom Payne
2012-09-28 17:24:08 +02:00
parent 62dc6a1b45
commit 3eebed4580
1 changed files with 16 additions and 0 deletions
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16
src/ol/interaction/shiftdragzoom.js
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@@ -4,6 +4,7 @@ goog.provide('ol.interaction.ShiftDragZoom');
goog.require('ol.Extent');
goog.require('ol.MapBrowserEvent');
goog.require('ol.control.DragBox');
goog.require('ol.interaction.Drag');
@@ -27,7 +28,16 @@ ol.SHIFT_DRAG_ZOOM_HYSTERESIS_PIXELS_SQUARED =
* @extends {ol.interaction.Drag}
*/
ol.interaction.ShiftDragZoom = function() {
goog.base(this);
/**
* @type {ol.control.DragBox}
* @private
*/
this.dragBox_ = null;
};
goog.inherits(ol.interaction.ShiftDragZoom, ol.interaction.Drag);
@@ -37,6 +47,8 @@ goog.inherits(ol.interaction.ShiftDragZoom, ol.interaction.Drag);
*/
ol.interaction.ShiftDragZoom.prototype.handleDragEnd =
function(mapBrowserEvent) {
this.dragBox_.setMap(null);
this.dragBox = null;
if (this.deltaX * this.deltaX + this.deltaY * this.deltaY >=
ol.SHIFT_DRAG_ZOOM_HYSTERESIS_PIXELS_SQUARED) {
var map = mapBrowserEvent.map;
@@ -55,6 +67,10 @@ ol.interaction.ShiftDragZoom.prototype.handleDragStart =
function(mapBrowserEvent) {
var browserEvent = mapBrowserEvent.browserEvent;
if (browserEvent.isMouseActionButton() && browserEvent.shiftKey) {
this.dragBox_ = new ol.control.DragBox({
map: mapBrowserEvent.map,
startCoordinate: this.startCoordinate
});
return true;
} else {
return false;