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1. Change the calling syntax for events on this control so that they go

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from this instead of this.map. This has practical as well as idealogical 
benefits, namely that we can now call other methods on the control from 
within a control. This is neccesary for...
2. When the shift key is lifted, stop the zoomBox. This is the way in 
which users can *not* zoom once they've started.


git-svn-id: http://svn.openlayers.org/trunk/openlayers@217 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
This commit is contained in:
crschmidt
2006-05-21 00:35:04 +00:00
parent 24eb8fe144
commit d0da958e57
1 changed files with 36 additions and 30 deletions
Download Patch File Download Diff File Expand all files Collapse all files

66
lib/OpenLayers/Control/MouseDefaults.js
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@@ -7,19 +7,19 @@ OpenLayers.Control.MouseDefaults.prototype =
}, },
draw: function() { draw: function() {
this.map.events.register( "dblclick", this.map, this.defaultDblClick ); this.map.events.register( "dblclick", this, this.defaultDblClick );
this.map.events.register( "mousedown", this.map, this.defaultMouseDown ); this.map.events.register( "mousedown", this, this.defaultMouseDown );
this.map.events.register( "mouseup", this.map, this.defaultMouseUp ); this.map.events.register( "mouseup", this, this.defaultMouseUp );
this.map.events.register( "mousemove", this.map, this.defaultMouseMove ); this.map.events.register( "mousemove", this, this.defaultMouseMove );
//this.map.events.register( "mouseout", this.map, this.defaultMouseUp ); //this.map.events.register( "mouseout", this, this.defaultMouseUp );
}, },
/** /**
* @param {Event} evt * @param {Event} evt
*/ */
defaultDblClick: function (evt) { defaultDblClick: function (evt) {
var newCenter = this.getLonLatFromPixel( evt.xy ); var newCenter = this.map.getLonLatFromPixel( evt.xy );
this.setCenter(newCenter, this.zoom + 1); this.map.setCenter(newCenter, this.map.zoom + 1);
}, },
/** /**
@@ -28,16 +28,16 @@ OpenLayers.Control.MouseDefaults.prototype =
defaultMouseDown: function (evt) { defaultMouseDown: function (evt) {
this.mouseDragStart = evt.xy.copyOf(); this.mouseDragStart = evt.xy.copyOf();
if (evt.shiftKey) { if (evt.shiftKey) {
this.div.style.cursor = "crosshair"; this.map.div.style.cursor = "crosshair";
this.zoomBox = OpenLayers.Util.createDiv('zoomBox'); this.zoomBox = OpenLayers.Util.createDiv('zoomBox');
this.zoomBox.style.border = '1px solid red'; this.zoomBox.style.border = '1px solid red';
this.zoomBox.style.position="absolute"; this.zoomBox.style.position="absolute";
this.zoomBox.style.zIndex=1000; this.zoomBox.style.zIndex=1000;
this.zoomBox.style.top=this.mouseDragStart.y; this.zoomBox.style.top=this.mouseDragStart.y;
this.zoomBox.style.left=this.mouseDragStart.x; this.zoomBox.style.left=this.mouseDragStart.x;
this.viewPortDiv.appendChild(this.zoomBox); this.map.viewPortDiv.appendChild(this.zoomBox);
} else { } else {
this.div.style.cursor = "move"; this.map.div.style.cursor = "move";
} }
Event.stop(evt); Event.stop(evt);
}, },
@@ -48,6 +48,10 @@ OpenLayers.Control.MouseDefaults.prototype =
defaultMouseMove: function (evt) { defaultMouseMove: function (evt) {
if (this.mouseDragStart != null) { if (this.mouseDragStart != null) {
if (this.zoomBox) { if (this.zoomBox) {
if (!evt.shiftKey) {
this.defaultMouseUp(evt);
return;
}
var deltaX = Math.abs(this.mouseDragStart.x - evt.xy.x); var deltaX = Math.abs(this.mouseDragStart.x - evt.xy.x);
var deltaY = Math.abs(this.mouseDragStart.y - evt.xy.y); var deltaY = Math.abs(this.mouseDragStart.y - evt.xy.y);
this.zoomBox.style.width = deltaX+"px"; this.zoomBox.style.width = deltaX+"px";
@@ -59,14 +63,14 @@ OpenLayers.Control.MouseDefaults.prototype =
this.zoomBox.style.top = evt.xy.y+"px"; this.zoomBox.style.top = evt.xy.y+"px";
} }
} else { } else {
var deltaX = this.mouseDragStart.x - evt.xy.x; var deltaX = this.map.mouseDragStart.x - evt.xy.x;
var deltaY = this.mouseDragStart.y - evt.xy.y; var deltaY = this.map.mouseDragStart.y - evt.xy.y;
var size = this.getSize(); var size = this.map.getSize();
var newXY = new OpenLayers.Pixel(size.w / 2 + deltaX, var newXY = new OpenLayers.Pixel(size.w / 2 + deltaX,
size.h / 2 + deltaY); size.h / 2 + deltaY);
var newCenter = this.getLonLatFromPixel( newXY ); var newCenter = this.map.getLonLatFromPixel( newXY );
this.setCenter(newCenter); this.map.setCenter(newCenter);
this.mouseDragStart = evt.xy.copyOf(); this.map.mouseDragStart = evt.xy.copyOf();
} }
} }
}, },
@@ -76,23 +80,25 @@ OpenLayers.Control.MouseDefaults.prototype =
*/ */
defaultMouseUp: function (evt) { defaultMouseUp: function (evt) {
if (this.zoomBox) { if (this.zoomBox) {
var start = this.getLonLatFromPixel( this.mouseDragStart ); if (evt.shiftKey) {
var end = this.getLonLatFromPixel( evt.xy ); var start = this.map.getLonLatFromPixel( this.mouseDragStart );
var top = (start.lat > end.lat ? start.lat : end.lat); var end = this.map.getLonLatFromPixel( evt.xy );
var bottom = (start.lat < end.lat ? start.lat : end.lat); var top = Math.max(start.lat, end.lat);
var left = (start.lon < end.lon ? start.lon : end.lon); var bottom = Math.min(start.lat, end.lat);
var right = (start.lon > end.lon ? start.lon : end.lon); var left = Math.min(start.lon, end.lon);
var bounds = new OpenLayers.Bounds(left, bottom, right, top); var right = Math.max(start.lon, end.lon);
var zoom = this.getZoomForExtent(bounds); var bounds = new OpenLayers.Bounds(left, bottom, right, top);
this.setCenter(new OpenLayers.LonLat( var zoom = this.map.getZoomForExtent(bounds);
(start.lon + end.lon) / 2, this.map.setCenter(new OpenLayers.LonLat(
(start.lat + end.lat) / 2 (start.lon + end.lon) / 2,
), zoom); (start.lat + end.lat) / 2
this.viewPortDiv.removeChild(document.getElementById("zoomBox")); ), zoom);
}
this.map.viewPortDiv.removeChild(document.getElementById("zoomBox"));
this.zoomBox = null; this.zoomBox = null;
} }
this.mouseDragStart = null; this.mouseDragStart = null;
this.div.style.cursor = "default"; this.map.div.style.cursor = "default";
} }
}); });