/
elabel.js
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elabel.js
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// Version 0.2 the .copy() parameters were wrong
// version 1.0 added .show() .hide() .setContents() .setPoint() .setOpacity() .overlap
// version 1.1 Works with GMarkerManager in v2.67, v2.68, v2.69, v2.70 and v2.71
// version 1.2 Works with GMarkerManager in v2.72, v2.73, v2.74 and v2.75
// version 1.3 add .isHidden()
// version 1.4 permit .hide and .show to be used before addOverlay()
// version 1.5 fix positioning bug while label is hidden
// version 1.6 added .supportsHide()
// version 1.7 fix .supportsHide()
function ELabel(point, html, classname, pixelOffset, percentOpacity, overlap) {
// Mandatory parameters
this.point = point;
this.html = html;
// Optional parameters
this.classname = classname||"";
this.pixelOffset = pixelOffset||new GSize(0,0);
if (percentOpacity) {
if(percentOpacity<0){percentOpacity=0;}
if(percentOpacity>100){percentOpacity=100;}
}
this.percentOpacity = percentOpacity;
this.overlap=overlap||false;
this.hidden = false;
}
ELabel.prototype = new GOverlay();
ELabel.prototype.initialize = function(map) {
var div = document.createElement("div");
div.style.position = "absolute";
div.innerHTML = '<div class="' + this.classname + '">' + this.html + '</div>' ;
map.getPane(G_MAP_FLOAT_SHADOW_PANE).appendChild(div);
this.map_ = map;
this.div_ = div;
if (this.percentOpacity) {
if(typeof(div.style.filter)=='string'){div.style.filter='alpha(opacity:'+this.percentOpacity+')';}
if(typeof(div.style.KHTMLOpacity)=='string'){div.style.KHTMLOpacity=this.percentOpacity/100;}
if(typeof(div.style.MozOpacity)=='string'){div.style.MozOpacity=this.percentOpacity/100;}
if(typeof(div.style.opacity)=='string'){div.style.opacity=this.percentOpacity/100;}
}
if (this.overlap) {
var z = GOverlay.getZIndex(this.point.lat());
this.div_.style.zIndex = z;
}
if (this.hidden) {
this.hide();
}
}
ELabel.prototype.remove = function() {
this.div_.parentNode.removeChild(this.div_);
}
ELabel.prototype.copy = function() {
return new ELabel(this.point, this.html, this.classname, this.pixelOffset, this.percentOpacity, this.overlap);
}
ELabel.prototype.redraw = function(force) {
var p = this.map_.fromLatLngToDivPixel(this.point);
var h = parseInt(this.div_.clientHeight);
//this.div_.style.left = (p.x + this.pixelOffset.width) + "px";
//this.div_.style.top = (p.y +this.pixelOffset.height - h) + "px";
this.div_.style.left = p.x + "px";
this.div_.style.top = (p.y - h) + "px";
this.dragZoom_ = this.map_.getZoom();
this.dragObject = new GDraggableObject(this.div_);
this.dragObject.parent = this;
}
ELabel.prototype.show = function() {
if (this.div_) {
this.div_.style.display="";
this.redraw();
}
this.hidden = false;
}
ELabel.prototype.hide = function() {
if (this.div_) {
this.div_.style.display="none";
}
this.hidden = true;
}
ELabel.prototype.isHidden = function() {
return this.hidden;
}
ELabel.prototype.supportsHide = function() {
return true;
}
ELabel.prototype.setContents = function(html) {
this.html = html;
this.div_.innerHTML = '<div class="' + this.classname + '">' + this.html + '</div>' ;
this.redraw(true);
}
ELabel.prototype.setPoint = function(point) {
this.point = point;
if (this.overlap) {
var z = GOverlay.getZIndex(this.point.lat());
this.div_.style.zIndex = z;
}
this.redraw(true);
}
ELabel.prototype.makeDraggable = function() {
this.dragZoom_ = this.map_.getZoom();
this.dragObject = new GDraggableObject(this.div_);
this.dragObject.parent = this;
GEvent.addListener(this.dragObject, "dragstart", function() {
this.parent.left=this.left;
this.parent.top=this.top;
});
GEvent.addListener(this.dragObject, "dragend", function() {
var pixels = this.parent.map_.fromLatLngToDivPixel(this.parent.point);
var newpixels = new GPoint(pixels.x + this.left - this.parent.left, pixels.y +this.top -this.parent.top);
this.parent.point = this.parent.map_.fromDivPixelToLatLng(newpixels);
this.parent.redraw(true);
GEvent.trigger(this.parent, "dragend", this.parent.point);
});
}
ELabel.prototype.setOpacity = function(percentOpacity) {
if (percentOpacity) {
if(percentOpacity<0){percentOpacity=0;}
if(percentOpacity>100){percentOpacity=100;}
}
this.percentOpacity = percentOpacity;
if (this.percentOpacity) {
if(typeof(this.div_.style.filter)=='string'){this.div_.style.filter='alpha(opacity:'+this.percentOpacity+')';}
if(typeof(this.div_.style.KHTMLOpacity)=='string'){this.div_.style.KHTMLOpacity=this.percentOpacity/100;}
if(typeof(this.div_.style.MozOpacity)=='string'){this.div_.style.MozOpacity=this.percentOpacity/100;}
if(typeof(this.div_.style.opacity)=='string'){this.div_.style.opacity=this.percentOpacity/100;}
}
}
ELabel.prototype.getPoint = function() {
return this.point;
}
ELabel.prototype.U = function() {
return this.point;
}
ELabel.prototype.V = function() {
return this.point;
}
ELabel.prototype.W = function() {
return this.point;
}
ELabel.prototype.X = function() {
return this.point;
}
ELabel.prototype.Y = function() {
return this.point;
}
ELabel.prototype.Z = function() {
return this.point;
}