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Parameterize pixel delta

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This commit is contained in:
Tom Payne
2012-08-04 15:50:28 +02:00
parent 7ab3b3dd82
commit 97eabc8693
2 changed files with 16 additions and 6 deletions
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2
src/ol/base/createmap.js
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@@ -91,7 +91,7 @@ ol.createMap = function(target, opt_values, opt_rendererHints) {
var controls = new ol.Collection();
controls.push(new ol.control.DblClickZoom(constraints));
controls.push(new ol.control.DragPan(constraints));
controls.push(new ol.control.KeyboardPan(constraints));
controls.push(new ol.control.KeyboardPan(constraints, 16));
controls.push(new ol.control.KeyboardZoom(constraints));
controls.push(new ol.control.MouseWheelZoom(constraints));
controls.push(new ol.control.ShiftDragRotateAndZoom(constraints));

20
src/ol/control/keyboardpan.js
View File

@@ -11,9 +11,18 @@ goog.require('ol.control.Constraints');
* @constructor
* @extends {ol.Control}
* @param {ol.control.Constraints} constraints Constraints.
* @param {number} pixelDelta Pixel delta.
*/
ol.control.KeyboardPan = function(constraints) {
ol.control.KeyboardPan = function(constraints, pixelDelta) {
goog.base(this, constraints);
/**
* @private
* @type {number}
*/
this.pixelDelta_ = pixelDelta;
};
goog.inherits(ol.control.KeyboardPan, ol.Control);
@@ -34,15 +43,16 @@ ol.control.KeyboardPan.prototype.handleMapBrowserEvent =
var map = mapBrowserEvent.map;
var resolution = map.getResolution();
var delta;
var mapUnitsDelta = resolution * this.pixelDelta_;
if (keyCode == goog.events.KeyCodes.DOWN) {
delta = new ol.Coordinate(0, -16 * resolution);
delta = new ol.Coordinate(0, -mapUnitsDelta);
} else if (keyCode == goog.events.KeyCodes.LEFT) {
delta = new ol.Coordinate(-16 * resolution, 0);
delta = new ol.Coordinate(-mapUnitsDelta, 0);
} else if (keyCode == goog.events.KeyCodes.RIGHT) {
delta = new ol.Coordinate(16 * resolution, 0);
delta = new ol.Coordinate(mapUnitsDelta, 0);
} else {
goog.asserts.assert(keyCode == goog.events.KeyCodes.UP);
delta = new ol.Coordinate(0, 16 * resolution);
delta = new ol.Coordinate(0, mapUnitsDelta);
}
this.pan(map, delta);
keyEvent.preventDefault();