+++ /dev/null
-/* Copyright (c) 2006 MetaCarta, Inc., published under the BSD license.
- * See http://svn.openlayers.org/trunk/openlayers/license.txt for the full
- * text of the license. */
-// @require: OpenLayers/Control/PanZoom.js
-
-//
-// default zoom/pan controls
-//
-OpenLayers.Control.PanZoomBar = Class.create();
-OpenLayers.Control.PanZoomBar.X = 4;
-OpenLayers.Control.PanZoomBar.Y = 4;
-OpenLayers.Control.PanZoomBar.prototype =
- Object.extend( new OpenLayers.Control.PanZoom(), {
- /** @type Array(...) */
- buttons: null,
-
- /** @type int */
- zoomStopWidth: 18,
-
- /** @type int */
- zoomStopHeight: 11,
-
- initialize: function() {
- OpenLayers.Control.PanZoom.prototype.initialize.apply(this, arguments);
- this.position = new OpenLayers.Pixel(OpenLayers.Control.PanZoomBar.X,
- OpenLayers.Control.PanZoomBar.Y);
- },
-
- /**
- * @param {OpenLayers.Pixel} px
- */
- draw: function(px) {
- // initialize our internal div
- OpenLayers.Control.prototype.draw.apply(this, arguments);
- px = this.position;
-
- // place the controls
- this.buttons = new Array();
-
- var sz = new OpenLayers.Size(18,18);
- var centered = new OpenLayers.Pixel(px.x+sz.w/2, px.y);
-
- this._addButton("panup", "north-mini.png", centered, sz);
- px.y = centered.y+sz.h;
- this._addButton("panleft", "west-mini.png", px, sz);
- this._addButton("panright", "east-mini.png", px.add(sz.w, 0), sz);
- this._addButton("pandown", "south-mini.png", centered.add(0, sz.h*2), sz);
- this._addButton("zoomin", "zoom-plus-mini.png", centered.add(0, sz.h*3+5), sz);
- centered = this._addZoomBar(centered.add(0, sz.h*4 + 5));
- this._addButton("zoomout", "zoom-minus-mini.png", centered, sz);
- return this.div;
- },
-
- /**
- * @param {OpenLayers.Pixel} location where zoombar drawing is to start.
- */
- _addZoomBar:function(centered) {
- var imgLocation = OpenLayers.Util.getImagesLocation();
-
- var id = "OpenLayers_Control_PanZoomBar_Slider" + this.map.id;
- var slider = OpenLayers.Util.createAlphaImageDiv(id,
- centered.add(-1,
- (this.map.getZoomLevels())*this.zoomStopHeight),
- new OpenLayers.Size(20,9),
- imgLocation+"slider.png",
- "absolute");
- this.slider = slider;
-
- this.sliderEvents = new OpenLayers.Events(this, slider);
- this.sliderEvents.register("mousedown", this, this.zoomBarDown);
- this.sliderEvents.register("mousemove", this, this.zoomBarDrag);
- this.sliderEvents.register("mouseup", this, this.zoomBarUp);
- this.sliderEvents.register("dblclick", this, this.doubleClick);
- this.sliderEvents.register("click", this, this.doubleClick);
-
- sz = new OpenLayers.Size();
- sz.h = this.zoomStopHeight*(this.map.getZoomLevels()+1);
- sz.w = this.zoomStopWidth;
- var div = null
-
- if (OpenLayers.Util.alphaHack()) {
- var id = "OpenLayers_Control_PanZoomBar" + this.map.id;
- div = OpenLayers.Util.createAlphaImageDiv(id, centered,
- new OpenLayers.Size(sz.w,
- this.zoomStopHeight),
- imgLocation + "zoombar.png",
- "absolute", null, "crop");
- div.style.height = sz.h;
- } else {
- div = OpenLayers.Util.createDiv(
- 'OpenLayers_Control_PanZoomBar_Zoombar' + this.map.id,
- centered,
- sz,
- imgLocation+"zoombar.png");
- }
-
- this.zoombarDiv = div;
-
- this.divEvents = new OpenLayers.Events(this, div);
- this.divEvents.register("mousedown", this, this.divClick);
- this.divEvents.register("mousemove", this, this.passEventToSlider);
- this.divEvents.register("dblclick", this, this.doubleClick);
- this.divEvents.register("click", this, this.doubleClick);
-
- this.div.appendChild(div);
-
- this.startTop = parseInt(div.style.top);
- this.div.appendChild(slider);
-
- this.map.events.register("zoomend", this, this.moveZoomBar);
-
- centered = centered.add(0,
- this.zoomStopHeight*(this.map.getZoomLevels()+1));
- return centered;
- },
- /*
- * @param evt
- * This function is used to pass events that happen on the div, or the map,
- * through to the slider, which then does its moving thing.
- */
- passEventToSlider:function(evt) {
- this.sliderEvents.handleBrowserEvent(evt);
- },
-
- /*
- * divClick: Picks up on clicks directly on the zoombar div
- * and sets the zoom level appropriately.
- */
- divClick: function (evt) {
- if (!Event.isLeftClick(evt)) return;
- var y = evt.xy.y;
- var top = Position.page(evt.object)[1];
- var levels = Math.floor((y - top)/this.zoomStopHeight);
- this.map.zoomTo(this.map.getZoomLevels() - levels);
- Event.stop(evt);
- },
-
- /*
- * @param evt
- * event listener for clicks on the slider
- */
- zoomBarDown:function(evt) {
- if (!Event.isLeftClick(evt)) return;
- this.map.events.register("mousemove", this, this.passEventToSlider);
- this.map.events.register("mouseup", this, this.passEventToSlider);
- this.mouseDragStart = evt.xy.copyOf();
- this.zoomStart = evt.xy.copyOf();
- this.div.style.cursor = "move";
- Event.stop(evt);
- },
-
- /*
- * @param evt
- * This is what happens when a click has occurred, and the client is dragging.
- * Here we must ensure that the slider doesn't go beyond the bottom/top of the
- * zoombar div, as well as moving the slider to its new visual location
- */
- zoomBarDrag:function(evt) {
- if (this.mouseDragStart != null) {
- var deltaY = this.mouseDragStart.y - evt.xy.y
- var offsets = Position.page(this.zoombarDiv);
- if ((evt.clientY - offsets[1]) > 0 &&
- (evt.clientY - offsets[1]) < parseInt(this.zoombarDiv.style.height) - 2) {
- var newTop = parseInt(this.slider.style.top) - deltaY;
- this.slider.style.top = newTop+"px";
- }
- this.mouseDragStart = evt.xy.copyOf();
- }
- Event.stop(evt);
- },
-
- /*
- * @param evt
- * Perform cleanup when a mouseup event is received -- discover new zoom level
- * and switch to it.
- */
- zoomBarUp:function(evt) {
- if (!Event.isLeftClick(evt)) return;
- if (this.zoomStart) {
- this.div.style.cursor="default";
- this.map.events.remove("mousemove");
- this.map.events.remove("mouseup");
- var deltaY = this.zoomStart.y - evt.xy.y
- this.map.zoomTo(this.map.zoom + Math.round(deltaY/this.zoomStopHeight));
- this.moveZoomBar();
- this.mouseDragStart = null;
- Event.stop(evt);
- }
- },
-
- /*
- * Change the location of the slider to match the current zoom level.
- */
- moveZoomBar:function() {
- var newTop =
- (this.map.getZoomLevels() - this.map.getZoom()) * this.zoomStopHeight
- + this.startTop + 1;
- this.slider.style.top = newTop + "px";
- },
-
- CLASS_NAME: "OpenLayers.Control.PanZoomBar"
-});
projects / rails.git / blobdiff