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author | Chris Schlaeger <chris@linux.com> | 2014-08-12 21:56:44 +0200 |
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committer | Chris Schlaeger <chris@linux.com> | 2014-08-12 21:56:44 +0200 |
commit | ea346a785dc1b3f7c156f6fc33da634e1f1a627b (patch) | |
tree | af67530553d20b6e82ad60fd79593e9c4abf5565 /misc/openlayers/lib/OpenLayers/Control/DragPan.js | |
parent | 59741cd535c47f25971bf8c32b25da25ceadc6d5 (diff) | |
download | postrunner-0.0.4.zip |
Adding jquery, flot and openlayers to be included with the GEM.v0.0.4
Diffstat (limited to 'misc/openlayers/lib/OpenLayers/Control/DragPan.js')
-rw-r--r-- | misc/openlayers/lib/OpenLayers/Control/DragPan.js | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/misc/openlayers/lib/OpenLayers/Control/DragPan.js b/misc/openlayers/lib/OpenLayers/Control/DragPan.js new file mode 100644 index 0000000..981a649 --- /dev/null +++ b/misc/openlayers/lib/OpenLayers/Control/DragPan.js @@ -0,0 +1,156 @@ +/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for + * full list of contributors). Published under the 2-clause BSD license. + * See license.txt in the OpenLayers distribution or repository for the + * full text of the license. */ + +/** + * @requires OpenLayers/Control.js + * @requires OpenLayers/Handler/Drag.js + */ + +/** + * Class: OpenLayers.Control.DragPan + * The DragPan control pans the map with a drag of the mouse. + * + * Inherits from: + * - <OpenLayers.Control> + */ +OpenLayers.Control.DragPan = OpenLayers.Class(OpenLayers.Control, { + + /** + * Property: type + * {OpenLayers.Control.TYPES} + */ + type: OpenLayers.Control.TYPE_TOOL, + + /** + * Property: panned + * {Boolean} The map moved. + */ + panned: false, + + /** + * Property: interval + * {Integer} The number of milliseconds that should ellapse before + * panning the map again. Defaults to 0 milliseconds, which means that + * no separate cycle is used for panning. In most cases you won't want + * to change this value. For slow machines/devices larger values can be + * tried out. + */ + interval: 0, + + /** + * APIProperty: documentDrag + * {Boolean} If set to true, mouse dragging will continue even if the + * mouse cursor leaves the map viewport. Default is false. + */ + documentDrag: false, + + /** + * Property: kinetic + * {<OpenLayers.Kinetic>} The OpenLayers.Kinetic object. + */ + kinetic: null, + + /** + * APIProperty: enableKinetic + * {Boolean} Set this option to enable "kinetic dragging". Can be + * set to true or to an object. If set to an object this + * object will be passed to the {<OpenLayers.Kinetic>} + * constructor. Defaults to true. + * To get kinetic dragging, ensure that OpenLayers/Kinetic.js is + * included in your build config. + */ + enableKinetic: true, + + /** + * APIProperty: kineticInterval + * {Integer} Interval in milliseconds between 2 steps in the "kinetic + * scrolling". Applies only if enableKinetic is set. Defaults + * to 10 milliseconds. + */ + kineticInterval: 10, + + + /** + * Method: draw + * Creates a Drag handler, using <panMap> and + * <panMapDone> as callbacks. + */ + draw: function() { + if (this.enableKinetic && OpenLayers.Kinetic) { + var config = {interval: this.kineticInterval}; + if(typeof this.enableKinetic === "object") { + config = OpenLayers.Util.extend(config, this.enableKinetic); + } + this.kinetic = new OpenLayers.Kinetic(config); + } + this.handler = new OpenLayers.Handler.Drag(this, { + "move": this.panMap, + "done": this.panMapDone, + "down": this.panMapStart + }, { + interval: this.interval, + documentDrag: this.documentDrag + } + ); + }, + + /** + * Method: panMapStart + */ + panMapStart: function() { + if(this.kinetic) { + this.kinetic.begin(); + } + }, + + /** + * Method: panMap + * + * Parameters: + * xy - {<OpenLayers.Pixel>} Pixel of the mouse position + */ + panMap: function(xy) { + if(this.kinetic) { + this.kinetic.update(xy); + } + this.panned = true; + this.map.pan( + this.handler.last.x - xy.x, + this.handler.last.y - xy.y, + {dragging: true, animate: false} + ); + }, + + /** + * Method: panMapDone + * Finish the panning operation. Only call setCenter (through <panMap>) + * if the map has actually been moved. + * + * Parameters: + * xy - {<OpenLayers.Pixel>} Pixel of the mouse position + */ + panMapDone: function(xy) { + if(this.panned) { + var res = null; + if (this.kinetic) { + res = this.kinetic.end(xy); + } + this.map.pan( + this.handler.last.x - xy.x, + this.handler.last.y - xy.y, + {dragging: !!res, animate: false} + ); + if (res) { + var self = this; + this.kinetic.move(res, function(x, y, end) { + self.map.pan(x, y, {dragging: !end, animate: false}); + }); + } + this.panned = false; + } + }, + + CLASS_NAME: "OpenLayers.Control.DragPan" +}); |