File "xt.zslider.js"
Full path: /www/map/mapserver-extensions/pmapper-4.2.0/javascript/src/xt.zslider.js
File size: 9.2 KiB (9424 bytes)
MIME-type: text/plain
Charset: utf-8
/************************************************************
Slider control creator
By Mark Wilton-Jones 12-13/10/2002
Version 1.1 updated 22/10/2003 to provide hand cursor option
*************************************************************
Please see http://www.howtocreate.co.uk/jslibs/ for details and a demo of this script
Please see http://www.howtocreate.co.uk/jslibs/termsOfUse.html for terms of use
___________________________________________________________________________________________*/
/* Modifications and new functions by Armin Burger for use with MapServer */
// ***************** START OF CODE BY Armin Burger ************************
/*
* Functions for setting scale to form input and load map
**************************************************************************/
var myslider;
var slScale;
function createZSlider(sliderElemId) {
if (_$(sliderElemId)) {
myslider = new slider(
sliderElemId, // id of DIV where slider is inserted
140, //height of track
14, //width of track
'#666666', //colour of track
1, //thickness of track border
'#000000', //colour of track border
2, //thickness of runner (in the middle of the track)
'#666666', //colour of runner
14, //height of button
20, //width of button
'#999999', //colour of button
1, //thickness of button border (shaded to give 3D effect)
'<img src="images/slider_updown.gif" style="display:block; margin:auto;" />', //text of button (if any)
//'', //text of button (if any)
false, //direction of travel (true = horizontal, false = vertical)
'sliderMove', //the name of the function to execute as the slider moves
'sliderStop', //the name of the function to execute when the slider stops
true //the functions must have already been defined (or use null for none)
);
}
}
/**
* Set Scale by moving slider
*/
function sliderMove(sliderPosition) {
currScale = PM.scale; //pMap_getMapScale();
if (PM.zsliderVertical) sliderPosition = 1 - sliderPosition;
slScale = sliderx2Scale(sliderPosition);
var strlenSlScale = parseInt(slScale).toString().length;
var redFact = Math.pow(10, strlenSlScale - 2);
slScale = Math.round(slScale/redFact) * redFact;
/* FEDE */
_$("scaleform").scale.value = slScale;
var scaleRatio = currScale / slScale;
//window.status = scaleRatio;
// Resize map image according to new scale
// call resizeMap() from zoombox.js
PM.ZoomBox.resizeMap(scaleRatio);
// Resize refbox according to new scale
// call resizeRefBox() from zoombox.js
PM.ZoomBox.resizeRefBox(scaleRatio);
}
function sliderx2Scale(x) {
var sliderScale = (1 - x) * PM.s1 + (x * PM.s2) - (x * (1 - x) * PM.s1) ;
return sliderScale;
}
function sliderStop() {
PM.Map.zoom2scale(slScale);
mouseIsPressed = false;
return false;
}
/**
* Returns the slider position value (0 to 1) with regard to the new map scale
* Contribution by Paul Hasenohr
*/
function getSliderPosition(curscale) {
var s1 = PM.s1;
var s2 = PM.s2;
var eqPart = Math.sqrt((s2*s2) + (4*s1*curscale) - (4*s1*s2));
var pos = ((2 * s1) - s2 + eqPart) / (2*s1) ;
if (pos < 0 || pos > 1) {
pos = ((2 * s1) - s2 - eqPart) / (2*s1) ;
}
if (pos > 1 || isNaN(pos)) pos = 1;
if (PM.zsliderVertical) pos = 1-pos;
return pos;
}
// ***************** START OF ORIGINAL CODE ************************
var mouseIsPressed = false;
var MWJ_slider_controls = 0;
function sliderMousePos(e) {
//get the position of the mouse
if( !e ) { e = window.event; } if( !e || ( typeof( e.pageX ) != 'number' && typeof( e.clientX ) != 'number' ) ) { return [0,0]; }
if( typeof( e.pageX ) == 'number' ) { var xcoord = e.pageX; var ycoord = e.pageY; } else {
var xcoord = e.clientX; var ycoord = e.clientY;
if( !( ( window.navigator.userAgent.indexOf( 'Opera' ) + 1 ) || ( window.ScriptEngine && ScriptEngine().indexOf( 'InScript' ) + 1 ) || window.navigator.vendor == 'KDE' ) ) {
if( document.documentElement && ( document.documentElement.scrollTop || document.documentElement.scrollLeft ) ) {
xcoord += document.documentElement.scrollLeft; ycoord += document.documentElement.scrollTop;
} else if( document.body && ( document.body.scrollTop || document.body.scrollLeft ) ) {
xcoord += document.body.scrollLeft; ycoord += document.body.scrollTop; } } }
return [xcoord,ycoord];
}
function slideIsDown(e) {
//make note of starting positions and detect mouse movements
window.msStartCoord = sliderMousePos(e); window.lyStartCoord = this.style?[parseInt(this.style.left),parseInt(this.style.top)]:[parseInt(this.left),parseInt(this.top)];
if( document.captureEvents && Event.MOUSEMOVE ) { document.captureEvents(Event.MOUSEMOVE); document.captureEvents(Event.MOUSEUP); }
window.storeMOUSEMOVE = document.onmousemove; window.storeMOUSEUP = document.onmouseup; window.storeLayer = this;
mouseIsPressed = true;
document.onmousemove = slideIsMove; document.onmouseup = slideIsMove; return false;
}
function slideIsMove(e) {
if (mouseIsPressed) {
//move the slider to its newest position
var msMvCo = sliderMousePos(e); if( !e ) { e = window.event ? window.event : ( new Object() ); }
var theLayer = window.storeLayer.style ? window.storeLayer.style : window.storeLayer; var oPix = document.childNodes ? 'px' : 0;
if( window.storeLayer.hor ) {
var theNewPos = window.lyStartCoord[0] + ( msMvCo[0] - window.msStartCoord[0] );
if( theNewPos < 0 ) { theNewPos = 0; } if( theNewPos > window.storeLayer.maxLength ) { theNewPos = window.storeLayer.maxLength; }
theLayer.left = theNewPos + oPix;
} else {
var theNewPos = window.lyStartCoord[1] + ( msMvCo[1] - window.msStartCoord[1] );
if( theNewPos < 0 ) { theNewPos = 0; } if( theNewPos > window.storeLayer.maxLength ) { theNewPos = window.storeLayer.maxLength; }
theLayer.top = theNewPos + oPix;
}
//run the user's functions and reset the mouse monitoring as before
if( e.type && e.type.toLowerCase() == 'mousemove' ) {
if( window.storeLayer.moveFunc ) { window.storeLayer.moveFunc(theNewPos/window.storeLayer.maxLength); }
} else {
document.onmousemove = storeMOUSEMOVE; document.onmouseup = window.storeMOUSEUP;
if( window.storeLayer.stopFunc ) { window.storeLayer.stopFunc(theNewPos/window.storeLayer.maxLength); }
}
}
}
function setSliderPosition(oPortion) {
//set the slider's position
if( isNaN( oPortion ) || oPortion < 0 ) { oPortion = 0; } if( oPortion > 1 ) { oPortion = 1; }
var theDiv = document.getElementById(this.id); if (!theDiv) {return false}; if( theDiv.style ) { theDiv = theDiv.style; }
oPortion = Math.round( oPortion * this.maxLength ); var oPix = document.childNodes ? 'px' : 0;
if( this.align ) { theDiv.left = oPortion + oPix; } else { theDiv.top = oPortion + oPix; }
}
function slider(sliderElemId,oThght,oTwdth,oTcol,oTBthk,oTBcol,oTRthk,oTRcol,oBhght,oBwdth,oBcol,oBthk,oBtxt,oAlgn,oMf,oSf,oCrs) {
//--- Modifications by Armin Burger ---//
//draw the slider using huge amounts of nested layers (makes the borders look normal in as many browsers as possible)
var sliderStr = (
'<div style="position:relative;left:0px;top:0px;height:'+(oThght+(2*oTBthk))+'px;width:'+(oTwdth+(2*oTBthk))+'px;background-color:'+oTBcol+';font-size:0px;">'+
'<div style="position:relative;left:'+oTBthk+'px;top:'+oTBthk+'px;height:'+oThght+'px;width:'+oTwdth+'px;background-color:'+oTcol+';font-size:0px;">'+
'<div style="position:absolute;left:'+(oAlgn?0:Math.floor((oTwdth-oTRthk)/2))+'px;top:'+(oAlgn?Math.floor((oThght-oTRthk)/2):0)+'px;height:'+(oAlgn?oTRthk:oThght)+'px;width:'+(oAlgn?oTwdth:oTRthk)+'px;background-color:'+oTRcol+';font-size:0px;"><\/div>'+
'<div style="position:absolute;left:'+(oAlgn?0:Math.floor((oTwdth-(oBwdth+(2*oBthk)))/2))+'px;top:'+(oAlgn?Math.floor((oThght-(oBhght+(2*oBthk)))/2):0)+'px;height:'+(oBhght+(2*oBthk))+'px;width:'+(oBwdth+(2*oBthk))+'px;font-size:0px;" ondragstart="return false;" onselectstart="return false;" onmouseover="this.hor='+oAlgn+';this.maxLength='+((oAlgn?oTwdth:oThght)-((oAlgn?oBwdth:oBhght)+(2*oBthk)))+';this.moveFunc='+oMf+';this.stopFunc='+oSf+';this.onmousedown=slideIsDown;" id="MWJ_slider_controls'+MWJ_slider_controls+'">'+
'<div style="border-top:'+oBthk+'px solid #ffffff;border-left:'+oBthk+'px solid #ffffff;border-right:'+oBthk+'px solid #000000;border-bottom:'+oBthk+'px solid #000000;">'+
'<div style="height:'+oBhght+'px;width:'+oBwdth+'px;font-size:0px;background-color:'+oBcol+';cursor:'+(oCrs?'pointer;cursor:move':'default')+';">'+
'<span style="width:100%;text-align:center;">'+oBtxt+'<\/span><\/div><\/div><\/div><\/div><\/div>'
);
document.getElementById(sliderElemId).innerHTML = sliderStr;
this.id = 'MWJ_slider_controls'+MWJ_slider_controls; this.maxLength = (oAlgn?oTwdth:oThght)-((oAlgn?oBwdth:oBhght)+(2*oBthk));
this.align = oAlgn; this.setPosition = setSliderPosition; MWJ_slider_controls++;
}