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khtml.js
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khtml.js
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//
// khtml javascript library
// verion 0.34
// LGPL Bernhard Zwischenbrugger
// http://www.khtml.org/iphonemap/help.php
//
// css3vector should bring more speed for vector graphics in webkit (disabled because of bugs)
//
//
// styles for fonts, path,... it's just an array
//
function kStyle(){
this.arrayStyle=new Array();
this.myclass=null;
this.addStyle=function(name,value){
var style=new Array(name,value);
this.arrayStyle.push(style);
}
this.setClassName=function(name){
this.myClass=name;
}
this.getClassName=function(name){
return this.myClass;
}
this.removeStyle=function(name){
//not implemented
}
this.removeAllStyles=function(){
//not implemented
}
this.getArray=function(){
return this.arrayStyle;
}
}
//
// Marker Object - work in progress
// There should be a possibility to add orbitrary html as marker
//
function kMarker(point,el){
var div=document.createElement("div");
div.appendChild(el);
div.style.position="absolute";
div.style.top="0px";
div.style.left="0px";
this.marker=div;
this.point=point;
this.init=function(mapObj){
mapObj.overlayDiv.appendChild(this.marker);
this.render(mapObj);
}
this.render=function(mapObj){
var xy=mapObj.latlngToXY(this.point);
if(xy["x"] < 40 || xy["y"] < 40) { // <---- flag ; workaround for overflow:hidden bug
this.marker.style.display="none";
}else{
this.marker.style.display="";
this.marker.style.left=xy["x"]+"px";
this.marker.style.top=xy["y"]+"px";
}
}
this.destroy=function(){
this.marker.parentNode.removeChild(this.marker);
}
this.moveTo=function(point){
this.point=point;
}
}
//
// maybe this can be removed
//
function kRect(bounds){
this.bounds=bounds;
this.rect=document.createElement("div");
this.rect.style.position="absolute";
this.rect.style.opacity=0.5;
this.rect.style.border="2px solid red";
this.init=function(mapObj){
mapObj.overlayDiv.appendChild(this.rect);
this.render(mapObj);
}
this.render=function(mapObj){
var p1=this.bounds.getSW();
var p2=this.bounds.getNE();
var xy1=mapObj.latlngToXY(p1);
var xy2=mapObj.latlngToXY(p2);
//console.log(xy1["x"]+":"+xy1["y"]+":"+xy2["x"]+":"+xy2["y"]);
this.rect.style.top=xy2["y"]+"px";
this.rect.style.left=xy1["x"]+"px";
this.rect.style.width=(xy2["x"] - xy1["x"])+"px";
this.rect.style.height=(xy1["y"] - xy2["y"])+"px";
}
}
//
// Draws SVG Lines. The mathematics is not so easy but all difficult calculations are in latlng2XY and latlng2XYlayer
// There are too versions for drawing. One for 3d css and the other for browsers without 3d css.
// Code is a bit mixed (3dcss, non 3dcss)
//
function kPolyline(points,style){
this.oldIntZoom=null;
this.path=null;
this.paths=new Array();
this.text=null;
this.textPath=null;
this.renderComplete=new Array();
if(style){
this.styleArray=style.getArray();
}else{
this.styleArray=[];
}
if(points){
this.points=points;
}else{
this.points=new Array();
}
this.init=function(mapObj){
if(mapObj.svgSupport){
this.path=document.createElementNS("http://www.w3.org/2000/svg","path");
this.path.setAttribute("fill","none");
for(var i=0; i < this.styleArray.length;i++){
this.path.setAttribute(this.styleArray[i][0],this.styleArray[i][1]);
}
}else{
if(document.namespaces['v'] == null) {
var stl = document.createStyleSheet();
stl.addRule("v\\:*", "behavior: url(#default#VML);");
document.namespaces.add("v", "urn:schemas-microsoft-com:vml");
}
this.path=document.createElement("v:polyline");
this.path.strokecolor="green";
//this.path.setAttribute("fillcolor","none");
//this.path.setAttribute("stroked","f");
}
if(!mapObj.css3dvector){
mapObj.svg.appendChild(this.path);
//this.path.setAttribute("stroked","f");
}else{
if(mapObj.svgSupport){
this.pathsvg=document.createElementNS("http://www.w3.org/2000/svg","svg");
}else{
this.pathsvg=document.createElement("div");
}
this.pathsvg.style.width=mapObj.svgWidth;
this.pathsvg.style.height=mapObj.svgHeight;
this.pathsvg.style.position="absolute";
this.pathsvg.appendChild(this.path);
}
//dirty flag
while(this.renderComplete.length >0){
this.renderComplete.pop();
}
// this.render(mapObj);
}
this.render=function(mapObj){
if(!mapObj) return;
this.map=mapObj;
if(this.points.length < 2){
return;
}
var intZoom=mapObj.intZoom;
if(!mapObj.css3dvector){
var svg=mapObj.svg;
var path=this.path;
}
/*
if(!svg){
alert("big bug: 333");
return;
}
*/
if(mapObj.css3dvector){
if(this.renderComplete[intZoom]=="yes"){
return;
}
this.renderComplete[intZoom]="yes";
}
if(mapObj.css3dvector){
var svg=this.pathsvg.cloneNode(true);
var path=svg.firstChild;
}
this.paths.push(path);
if(mapObj.svgSupport){
var d="M";
}else{
var d="";
}
var c=0;
for(var point in this.points){
if(mapObj.css3dvector){
var xy=mapObj.latlngToXYlayer(this.points[point]);
}else{
var xy=mapObj.latlngToXY(this.points[point]);
}
if(mapObj.svgSupport){
if(d=="M"){
d+=xy["x"]+","+xy["y"];
}else{
d+=" L"+xy["x"]+","+xy["y"];
}
}else{
d+=xy["x"]+"px,"+xy["y"]+"px ";
}
}
//alert(d);
//console.log(d);
if(mapObj.svgSupport){
path.setAttribute("d",d);
}else{
//alert(path.outerHTML);
//path.setAttribute("points",d);
path.points.value=d;
//alert(path.outerHTML);
}
//alert(path.outerHTML);
if(!mapObj.css3dvector){
svg.appendChild(path);
}else{
mapObj.layers[intZoom]["svg"].appendChild(svg);
//this.pathsvg.appendChild(path);
}
if(this.text){
var id="khtml"+Math.random();
path.setAttribute("id",id);
if(!mapObj.css3dvector){
this.textPath.setAttributeNS("http://www.w3.org/1999/xlink","href","#"+id);
svg.appendChild(this.text);
}else{
var clonedText=this.text.cloneNode(true)
svg.appendChild(clonedText);
clonedText.firstChild.setAttributeNS("http://www.w3.org/1999/xlink","href","#"+id);
}
}
}
this.addPoint=function(point){
this.points.push(point);
if(this.map){
//this.render(this.map);
}
}
this.setText=function(text,style){
if(!this.map.svgSupport)return;
if(style){
this.textStyleArray=style.getArray();
}else{
this.textStyleArray=[];
}
if(this.text){
while(this.textPath.firstChild){
this.textPath.removeChild(this.textPath.firstChild);
}
}else{
this.text=document.createElementNS("http://www.w3.org/2000/svg","text");
this.text.setAttribute("y",-2);
this.textPath=document.createElementNS("http://www.w3.org/2000/svg","textPath");
this.textPath.setAttribute("startOffset","50%");
this.text.appendChild(this.textPath);
}
var textNode=document.createTextNode(text);
this.textPath.appendChild(textNode);
for(var i=0; i < this.textStyleArray.length;i++){
this.text.setAttribute(this.textStyleArray[i][0],this.textStyleArray[i][1]);
}
}
this.setPoints=function(points){
this.points=points;
if(this.map){
this.render(this.map);
}
}
this.deleteAllPoints=function(){
while(this.points.length >0){
this.points.pop();
}
if(this.map){
this.render(this.map);
}
}
this.destroy=function(){
while(this.renderComplete.length >0){
this.renderComplete.pop();
}
while(this.paths.length >0){
var p=this.paths.pop();
if(this.map.css3dvector){
p=p.parentNode;
}
if(p.parentNode){
p.parentNode.removeChild(p);
}
}
}
}
//
// A Point in 2D
//
function kPoint(lat,lng){
this.lat=parseFloat(lat);
this.lng=parseFloat(lng);
this.getLat=function(){
return this.lat;
}
this.getLng=function(){
return this.lng;
}
}
//
// An area defined by 2 Points
//
function kBounds(sw,ne){
this.sw=sw;
this.ne=ne;
this.center=new kPoint((sw.getLat() +ne.getLat())/2, (sw.getLng() +ne.getLng())/2);
this.getSW=function(){
return this.sw;
}
this.getNE=function(){
return this.ne;
}
this.getCenter=function(){
return this.center;
}
this.getOpticalCenter=function(themap){
var swXY=themap.latlngToXY(this.sw);
var neXY=themap.latlngToXY(this.ne);
var centerX=Math.abs(swXY["x"] + neXY["x"])/2;
var centerY=Math.abs(swXY["y"] + neXY["y"])/2;
var centerLatLng=themap.XYTolatlng(centerX,themap.height -centerY);
//alert(centerLatLng.getLat()+":"+centerLatLng.getLng());
return centerLatLng;
}
this.getZoomLevel=function(themap){
origZoom=themap.getZoom();
var swXY=themap.latlngToXY(this.sw);
var neXY=themap.latlngToXY(this.ne);
var dx=Math.abs(swXY["x"] - neXY["x"]);
var dy=Math.abs(swXY["y"] - neXY["y"]);
var zoomX=themap.width /dx;
var zoomY=themap.height /dy;
if(zoomX > zoomY) var zoom=zoomY;
if(zoomX <= zoomY) var zoom=zoomX;
var dzoom=(Math.log(zoom))/(Math.log(2));
//alert(dx+":"+dy+":"+zoomX+":"+zoomY+":"+origZoom+":"+zoom+":"+dzoom);
var newzoom=origZoom + dzoom ;
return(newzoom);
}
this.getDistance=function(){
return distance(this.sw.getLat(),this.sw.getLng(),this.ne.getLat(),this.ne.getLng());
}
this.getDistanceText=function(){
var d= parseFloat(distance(this.sw.getLat(),this.sw.getLng(),this.ne.getLat(),this.ne.getLng()));
if(d < 1000){
return Math.round(d)+"m";
}
if(d < 10000){
var km=Math.round(d/10)/100;
return km+"km";
}
if(d < 100000){
var km=Math.round(d/100)/10;
return km+"km";
}
var km=Math.round(d/1000);
return km +"km";
}
this.getInnerRadius=function(){
var w=distance(this.center.getLat(),this.sw.getLng(),this.center.getLat(),this.ne.getLng());
var h=distance(this.sw.getLat(),this.center.getLng(),this.ne.getLat(),this.center.getLng());
if(w > h){
return h/2;
}else{
return w/2;
}
}
function distance(latdeg1,lngdeg1,latdeg2,lngdeg2){
//Umrechnung von Grad auf Radian
var lat1=latdeg1*Math.PI/180;
var lng1=lngdeg1*Math.PI/180;
var lat2=latdeg2*Math.PI/180;
var lng2=lngdeg2*Math.PI/180;
//Eigentliche Berechnung
var w=Math.acos(Math.sin(lat1)*Math.sin(lat2) + Math.cos(lat1)*Math.cos(lat2)*Math.cos(lng2 - lng1))*180/Math.PI ;
var d=w/360*40000*1000;
return d; //in meter
}
}
//
//
// THIS IS THE MAIN CLASS
//
//
function kmap(map){
//Overlays
this.addOverlay=function(obj){
this.overlays.push(obj);
if(typeof(obj.init)=="function"){
obj.init(this);
}
this.renderOverlays();
}
this.renderOverlays=function(){
this.overlayDiv.style.display="";
//if(!this.internetExplorer){
this.svg.style.display="";
//}
var that=this;
for(obj in this.overlays){
this.overlays[obj].render(that);
}
}
this.hideOverlays=function(){
this.overlayDiv.style.display="none";
if(!this.internetExplorer){
this.svg.style.display="none";
}
/*
for(obj in this.overlays){
// this.overlays[obj].hide();
}
*/
}
this.removeOverlays=function(){
while(this.overlays.length >0){
var overlay=this.overlays.pop();
overlay.destroy();
}
}
this.removeOverlay=function(ov){
for(var i=0; i<this.overlays.length ;i++){
var overlay=this.overlays[i];
if(ov==overlay){
overlay.destroy();
}
}
}
//
// every change (lat,lng,zoom) will call a user defined function
//
this.callbackFunctions=new Array();
this.addCallbackFunction=function(func){
if(typeof(func)=="function"){
this.callbackFunctions.push(func);
}
}
this.executeCallbackFunctions=function(){
//alert(this.callbackFunctions.length);
for(var i=0;i< this.callbackFunctions.length;i++){
this.callbackFunctions[i].call();
}
}
//
// A simple distance measuring
//
this.startDistance=function(){
this.distanceMeasuring="yes";
}
this.endDistance=function(){
this.distanceMeasuring="no";
}
/*==================================================
//
// Touchscreen and Mouse EVENTS
//
===================================================*/
//
// Touchscreen
// Here also the multitouch zoom is done
//
this.start=function(evt){
if(evt.preventDefault){
evt.preventDefault(); // The W3C DOM way
} else {
evt.returnValue = false; // The IE way
}
this.moveAnimationBlocked=true;
this.hideOverlays();
if(evt.touches.length ==1){
this.startMoveX=this.moveX - evt.touches[0].pageX /this.faktor /this.sc;
this.startMoveY=this.moveY - evt.touches[0].pageY /this.faktor/this.sc;
if(this.mousedownTime!=null){
var now=(new Date()).getTime();
if(now - this.mousedownTime < this.doubleclickTime){
var zoomD=Math.ceil(0.01+this.getZoom() -this.intZoom);
this.autoZoomIn(evt.touches[0].pageX,evt.touches[0].pageY,zoomD);
}
}
this.mousedownTime=(new Date()).getTime();
var that=this;
var tempFunction=function () {that.autoZoomOut()};
this.zoomOutInterval=window.setInterval(tempFunction,20);
}
if(evt.touches.length ==2){
window.clearInterval(this.zoomOutInterval);
this.moveok=false;
var X1=evt.touches[0].pageX;
var Y1=evt.touches[0].pageY;
var X2=evt.touches[1].pageX;
var Y2=evt.touches[1].pageY;
this.startDistance=Math.sqrt(Math.pow((X2 - X1),2) + Math.pow((Y2 - Y1),2)) ;
this.startZZ=this.zoom;
var x=(X1+X2)/2 /this.faktor /this.sc;
var y=(Y1+Y2)/2 /this.faktor /this.sc;
this.startMoveX=this.moveX - x;
this.startMoveY=this.moveY - y;
}
}
this.move=function(evt){
if(evt.preventDefault){
evt.preventDefault(); // The W3C DOM way
} else {
evt.returnValue = false; // The IE way
}
// this.mousedownTime=null;
if(evt.touches.length ==1){
if(this.moveok){
this.lastMoveX=this.moveX;
this.lastMoveY=this.moveY;
this.moveX=evt.touches[0].pageX / this.faktor/this.sc + this.startMoveX;
this.moveY=evt.touches[0].pageY / this.faktor/this.sc + this.startMoveY;
if(!this.zoomOutStarted){
if((Math.abs(this.moveX -this.startMoveX) > 0.01) ||(Math.abs(this.moveY - this.startMoveY) >0.01)){
window.clearInterval(this.zoomOutInterval);
this.zoomOutSpeed=0.01;
this.mousedownTime=null;
}
var center=new kPoint(this.lat,this.lng);
this.setCenter2(center,this.zoom);
this.moveAnimationBlocked=false;
}
if((Math.abs(this.moveX -this.startMoveX) > 0.01) ||(Math.abs(this.moveY - this.startMoveY) >0.01)){
this.mousedownTime=null; //prevents doubleclick if map is moved already
}
}else{
//alert("no move");
}
}
if(evt.touches.length == 2){
this.mousedownTime=null;
var X1=evt.touches[0].pageX;
var Y1=evt.touches[0].pageY;
var X2=evt.touches[1].pageX;
var Y2=evt.touches[1].pageY;
var Distance=Math.sqrt(Math.pow((X2 - X1),2) + Math.pow((Y2 - Y1),2)) ;
var zoomDelta=(Distance / this.startDistance );
var zz=this.startZZ+zoomDelta -1;
if(zz < 1){
zz=1;
}
if(zz > 18){
zz=18;
zoomDelta=1;
}
var x=(X1+X2)/2;
var y=(Y1+Y2)/2;
faktor=Math.pow(2,zz);
var zoomCenterDeltaX=x /faktor -this.width/2;
var zoomCenterDeltaY=y /faktor -this.height/2;
var f=Math.pow(2,zoomDelta -1);
var dx=zoomCenterDeltaX - zoomCenterDeltaX*f;
var dy=zoomCenterDeltaY - zoomCenterDeltaY*f;
this.moveX=(x+dx) /faktor +this.startMoveX ;
this.moveY=(y+dy) /faktor +this.startMoveY ;
var center=new kPoint(this.lat,this.lng);
this.setCenter2(center,zz);
}
}
this.end=function(evt){
if(evt.preventDefault){
evt.preventDefault(); // The W3C DOM way
} else {
evt.returnValue = false; // The IE way
}
window.clearInterval(this.zoomOutInterval);
this.zoomOutStarted=false;
if(evt.touches.length==0){
this.moveok=true;
if(this.moveAnimationMobile){
if(this.moveAnimationBlocked==false){
var speedX=this.lastMoveX - this.moveX;
var speedY=this.lastMoveY - this.moveY;
clearTimeout(this.animateMoveTimeout);
this.animateMove(speedX,speedY);
}
}
/*
var that=this;
var tempFunction=function () {that.moveAnimationBlocked=false};
setTimeout(tempFunction,this.doubleclickTime);
*/
}
this.renderOverlays();
}
//
// mouse events
//
//ie sucks
this.pageX=function(evt){
try{
if (evt.pageX === undefined) {
var px= evt.clientX + document.body.scrollLeft;
}else{
var px= evt.pageX;
}
return px -this.mapLeft;
}catch(e){
return this.lastMouseX;
//return this.width/2 + this.mapLeft;
}
}
this.pageY=function(evt){
try{
if (evt.pageY === undefined) {
var py= evt.clientY + document.body.scrollTop;
}else{
var py= evt.pageY;
}
return py -this.mapTop;
}catch(e){
return this.lastMouseY;
//return this.height/2 +this.mapTop;
}
}
this.doubleclick=function(evt){
//console.log("doubleclick");
var zoom=this.getZoom();
var zoomD=Math.ceil(0.0001+this.getZoom())-zoom;
this.autoZoomIn(this.pageX(evt) ,this.pageY(evt) ,zoomD);
}
this.mousedown=function(evt){
this.mapParent.focus();
if(evt.preventDefault){
evt.preventDefault(); // The W3C DOM way
} else {
window.event.returnValue = false; // The IE way
}
this.lastMouseX=this.pageX(evt);
this.lastMouseY=this.pageY(evt);
this.moveAnimationBlocked=true;
if(this.mousedownTime2!=null){
var now=(new Date()).getTime();
if(now - this.mousedownTime2 < this.doubleclickTime2){
this.doubleclick(evt);
}
}
this.mousedownTime2=(new Date()).getTime();
if(this.distanceMeasuring=="yes"){
//this.normalize();
this.distanceStartpoint=this.XYTolatlng(this.moveX + this.pageX(evt),this.moveY+this.height - this.pageY(evt));
var img=document.createElement("img");
img.setAttribute("src","images/dot_green.png");
img.style.position="absolute";
img.style.top="-3px"; //<--- flag
img.style.left="-4px"; //<--- flag
img.style.width="8px"; //<--- flag
img.style.height="8px";
var marker=new kMarker(this.distanceStartpoint,img);
this.addOverlay(marker);
var img2=img.cloneNode(img);
this.moveMarker=new kMarker(this.distanceStartpoint,img2);
var points=new Array();
var style=new kStyle();
style.addStyle("stroke-width",1);
style.addStyle("stroke","green");
style.addStyle("stroked","green");
this.measureLine=new kPolyline(points,style);
this.addOverlay(this.measureLine);
return;
}
if(evt.shiftKey){
this.selectRectLeft= this.pageX(evt) ;
this.selectRectTop= this.pageY(evt) ;
// this.distanceStartpoint=this.XYTolatlng( this.pageX(evt),this.height - this.pageY(evt));
this.selectRect=document.createElement("div");
this.selectRect.style.left=this.selectRectLeft+"px";
this.selectRect.style.top=this.selectRectTop+"px";
this.selectRect.style.border="1px solid gray";
if(!this.internetExplorer){
this.selectRect.style.opacity=0.5;
this.selectRect.style.backgroundColor="white";
}
this.selectRect.style.position="absolute";
this.map.parentNode.appendChild(this.selectRect);
}else{
this.hideOverlays();
this.startMoveX=this.moveX - (this.pageX(evt) ) /this.faktor /this.sc;
this.startMoveY=this.moveY - (this.pageY(evt) ) /this.faktor/this.sc;
this.movestarted=true;
}
return false;
}
this.mousemove=function(evt){
if(evt.preventDefault){
evt.preventDefault(); // The W3C DOM way
} else {
window.event.returnValue = false; // The IE way
}
//this.mousedownTime2=0; //if it's moved it's not a doubleclick
this.lastMouseX=this.pageX(evt);
this.lastMouseY=this.pageY(evt);
if(this.distanceMeasuring){
if(this.moveMarker){
//this.normalize();
var movePoint=this.XYTolatlng( this.pageX(evt),this.height - this.pageY(evt));
this.moveMarker.moveTo(movePoint);
this.addOverlay(this.moveMarker);
//add line
var points=new Array();
if(this.distanceStartpoint.getLng() < movePoint.getLng()){
points.push(this.distanceStartpoint);
points.push(movePoint);
}else{
points.push(movePoint);
points.push(this.distanceStartpoint);
}
this.measureLine.setPoints(points);
var mbr=new kBounds(movePoint,this.distanceStartpoint);
var d=mbr.getDistanceText();
var style2=new kStyle();
style2.addStyle("fill","black");
style2.addStyle("stroke","white");
style2.addStyle("stroke-width",0.5);
style2.addStyle("font-size","18px");
if(navigator.userAgent.indexOf("Opera")!=-1){
style2.addStyle("font-size","15px");
}else{
style2.addStyle("font-weight","bold");
}
style2.addStyle("text-anchor","middle");
style2.addStyle("dy","-2");
this.measureLine.setText(d,style2);
var that=this;
this.measureLine.render(that);
return;
}
}
if(evt.shiftKey){
if(this.selectRect){
this.selectRect.style.width=Math.abs(this.pageX(evt) - this.selectRectLeft)+"px";
this.selectRect.style.height=Math.abs(this.pageY(evt) - this.selectRectTop)+"px";
if(this.pageX(evt) < this.selectRectLeft){
this.selectRect.style.left=this.pageX(evt);
}
if(this.pageY(evt) < this.selectRectTop){
this.selectRect.style.top=this.pageY(evt);
}
}
}else{
if(this.movestarted){
this.lastMoveX=this.moveX;
this.lastMoveY=this.moveY;
this.moveX=(this.pageX(evt) ) / this.faktor/this.sc + this.startMoveX;
this.moveY=(this.pageY(evt) ) / this.faktor/this.sc + this.startMoveY;
var center=new kPoint(this.lat,this.lng);
//alert(evt.pageX);
this.setCenter2(center,this.zoom);
this.moveAnimationBlocked=false;
}
}
return false;
}
this.mouseup=function(evt){
if(evt.preventDefault){
evt.preventDefault(); // The W3C DOM way
} else {
evt.returnValue = false; // The IE way
}
this.lastMouseX=this.pageX(evt);
this.lastMouseY=this.pageY(evt);
if(this.moveMarker){
this.moveMarker=null;
}
if(this.selectRect){
//this.normalize();
var p1=this.XYTolatlng(this.selectRect.offsetLeft ,this.height - this.selectRect.offsetTop -this.selectRect.offsetHeight );
var p2=this.XYTolatlng(this.selectRect.offsetLeft +this.selectRect.offsetWidth,this.height - this.selectRect.offsetTop );
var bounds=new kBounds(p1,p2);
this.setBounds(bounds);
this.selectRect.parentNode.removeChild(this.selectRect);
this.selectRect=null;
}
//using this normalize some things are working better, others not so goot.
//delelte it will solve some problems but bring other problems
//this.normalize();
if(this.wheelSpeedConfig["moveAnimateDesktop"]){
if(this.movestarted){
if(this.moveAnimationBlocked==false){
var speedX=this.lastMoveX - this.moveX;
var speedY=this.lastMoveY - this.moveY;
this.animateMove(speedX,speedY);
}
}
}else{
this.renderOverlays();
}
this.movestarted=false;
}
//
// this function should draw the map and remove any moveX,moveY
// Maybe buggy
//
/*
this.normalize=function(){
//normalize after move speed trick
if(!isNaN(this.movedLat)){
if(!isNaN(this.movedLng)){
var lat=this.movedLat;
var lng=this.movedLng;
var center=new kPoint(lat,lng);
var zoom=this.getZoom();
//this.moveX=0;
//this.moveY=0;
//this.setCenterNoLog(center,zoom);
//end normalize (maybe this.stop needs the same)
}
}
}
*/
//
// mouse wheel zoom
// the mousewheel speed depends on browser and os
// to optimize this could improve the map a lot.
// todo: wheelspeed
//
this.zoomAccelerate=0;
this.mousewheel=function(evt){
if(evt.preventDefault){
evt.preventDefault(); // The W3C DOM way
} else {
evt.returnValue = false; // The IE way
}
this.mapParent.focus();
this.wheelEventCounter++;
var that=this;
var tempFunction=function () {that.wheelEventCounter--};
window.setTimeout(tempFunction,1000);
delta=null;
if (!evt) /* For IE. */
evt = window.event;
if (evt.wheelDelta) { /* IE/Opera/Chrom. */
delta = evt.wheelDelta/60;
if (window.opera){
delta = delta/5;
}
} else if (evt.detail) { /** Mozilla case. */
delta = -evt.detail/3;
}
if(navigator.userAgent.indexOf("Chrome")!=-1){
if(navigator.userAgent.indexOf("Linux")!=-1){
delta = evt.wheelDelta/120;
}
}
var dzoom=delta* this.wheelSpeedConfig["acceleration"]*0.03;
if(dzoom > 0 && this.zoomAccelerate < 0) this.zoomAccelerate=0;
if(dzoom < 0 && this.zoomAccelerate > 0) this.zoomAccelerate=0;
if(!isNaN(dzoom)){
this.zoomAccelerate=this.zoomAccelerate+dzoom;
}else{
alert("hopala");
this.zoomAccelerate=0;
}
var that=this;
var tempFunction=function () {that.zooming(that.pageX(evt),that.pageY(evt))};
if(this.wheelZoomTimeout){
window.clearTimeout(this.wheelZoomTimeout);
}
window.setTimeout(tempFunction,20);
}
this.wheelZoomTimeout=null;
this.zooming=function(pageX,pageY){
var ttt=this.zoomAccelerate;