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justcorners.js

Uploaded on Oct 08 2009 01:41 by scamus

/**
* justcorners.js 1.81 (21-Mar-2009)
* (c) by Christian Effenberger
* All Rights Reserved
* Source: corner.netzgesta.de
* Distributed under Netzgestade Software License Agreement
* http://www.netzgesta.de/cvi/LICENSE.txt
* License permits free of charge
* use on non-commercial and
* private web sites only
**/

var tmp = navigator.appName == 'Microsoft Internet Explorer' && navigator.userAgent.indexOf('Opera') < 1 ? 1 : 0;
if(tmp) var isIE = document.namespaces && !window.opera ? 1 : 0;

if(isIE) {
if(document.namespaces['v']==null) {
var e=["shape","shapetype","group","background","path","formulas","handles","fill","stroke","shadow","textbox","textpath","imagedata","line","polyline","curve","roundrect","oval","rect","arc","image"],s=document.createStyleSheet();
for(var i=0; i<e.length; i++) {s.addRule("v\\:"+e[i],"behavior: url(#default#VML);");} document.namespaces.add("v","urn:schemas-microsoft-com:vml");
}
}

function roundedCorners(ctx,width,height,radius,lt,rt,lb,rb){
ctx.beginPath(); ctx.moveTo(0,radius);
if(lb==1) {ctx.lineTo(0,height-radius); ctx.quadraticCurveTo(0,height,radius,height); }else {ctx.lineTo(0,height); }
if(rb==1) {ctx.lineTo(width-radius,height); ctx.quadraticCurveTo(width,height,width,height-radius); }else {ctx.lineTo(width,height); }
if(rt==1) {ctx.lineTo(width,radius); ctx.quadraticCurveTo(width,0,width-radius,0); }else {ctx.lineTo(width,0); }
if(lt==1) {ctx.lineTo(radius,0); ctx.quadraticCurveTo(0,0,0,radius); }else {ctx.lineTo(0,0); }
ctx.closePath();
}

function addRoundedIECorners() {
var image, object, vml, classNames, data, classes = '';
var iradius = 0, iborder = 0, icolor = '', newClasses = '';
var maxdim = 0, mindim = 0, i, j, child, tmp = '';
var radius = null, display = "", flt = "", color = '';
var tl = 1, tr = 1, bl = 1, br = 1;
var children = document.getElementsByTagName('img');
var theimages = new Array();
for(i=0;i<children.length;i++) {
child = children[i];
classNames = child.className.split(' ');
for(j=0;j<classNames.length; j++) {
if(classNames[j] == 'corners') {theimages.push(child); break; }
}
}
for(i=0;i<theimages.length;i++) {
image = theimages[i]; iradius = 16; color = '0000ff';
tl = 1; tr = 1; bl = 1; br = 1; iborder = 0;
object = image.parentNode;
classes = image.className.split(' ');
for(j=0;j<classes.length;j++) {
if(classes[j].indexOf("iradius") == 0) {
iradius = classes[j].substring(7);
}else if(classes[j].indexOf("iborder") == 0) {
iborder = classes[j].substring(7);
}else if(classes[j].indexOf("icolor") == 0) {
icolor = classes[j].substring(6);
}else if(classes[j].indexOf("iradiae") == 0) {
tmp = classes[j].substring(7);
tl = (tmp.substr(0,1)!="1"?0:1);
tr = (tmp.substr(1,1)!="1"?0:1);
bl = (tmp.substr(2,1)!="1"?0:1);
br = (tmp.substr(3,1)!="1"?0:1);
}
} newClasses = '';
for(j=0;j<classes.length;j++) {
if(classes[j] != "corners") {
if(newClasses) { newClasses += ' '; }
newClasses += classes[j];
}
}
maxdim = Math.min(image.width,image.height)/2;
mindim = (iradius==0?16:iradius);
radius = Math.min(maxdim,mindim);
iborder = Math.min(iborder,2);
color = (icolor.match(/^[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]$/i)?icolor:color);
display = (image.currentStyle.display.toLowerCase()=='block')?'block':'inline-block';
vml = document.createElement(['<var style="zoom:1;overflow:hidden;display:' + display + ';width:' + image.width + 'px;height:' + image.height + 'px;padding:0;">'].join(''));
flt = image.currentStyle.styleFloat.toLowerCase();
display = (flt=='left'||flt=='right')?'inline':display;
var path = "m 0," + radius;
if(bl==1) {path += " l 0," + (image.height-radius) + " qy " + radius + "," + image.height;}else {path += " l 0," + image.height;}
if(br==1) {path += " l " + (image.width-radius) + "," + image.height + " qx " + image.width + "," + (image.height-radius);}else {path += " l " + image.width + "," + image.height;}
if(tr==1) {path += " l " + image.width + "," + radius + " qy " + (image.width-radius) + ",0";}else {path += " l " + image.width + ",0";}
if(tl==1) {path += " l " + radius + ",0 qx 0," + radius;}else {path += " l 0,0";}
path += " x e"; data = '<v:shape strokeweight="'+iborder+'px" stroked="'+(iborder>0?"t":"f")+'" strokecolor="#'+color+'" filled="t" fillcolor="#ffffff" coordorigin="0,0" coordsize="' + image.width + ',' + image.height + '" path="' + path + '" style="zoom:1;margin:-1px 0 0 -1px;padding: 0;display:' + display + ';width:' + image.width + 'px;height:' + image.height + 'px;"><v:fill src="' + image.src + '" type="frame" /></v:shape>';
vml.innerHTML = [data ].join('');
vml.className = newClasses;
vml.style.cssText = image.style.cssText;
vml.style.visibility = 'visible';
vml.src = image.src; vml.alt = image.alt;
if(image.id!='') vml.id = image.id;
if(image.title!='') vml.title = image.title;
if(image.getAttribute('onclick')!='') vml.setAttribute('onclick',image.getAttribute('onclick'));
image.insertAdjacentElement('BeforeBegin',vml);
if(image.getAttribute("usemap")) {
object.style.position = 'relative';
object.style.height = image.height+'px';
object.style.width = image.width+'px';
image.left = 0; image.top = 0;
image.style.position = 'absolute';
image.style.height = image.height+'px';
image.style.width = image.width+'px';
image.style.left = 0 + 'px';
image.style.top = 0 + 'px';
image.style.filter = "Alpha(opacity=0)";
}else {
image.style.display = 'none';
}
}
}

function addRoundedCorners() {
var image, object, canvas, context, classNames, classes = '';
var iradius = 0, iborder = 0, icolor = '', newClasses = '';
var maxdim = 0, mindim = 0, i, j, child, tmp = '';
var tl = 1, tr = 1, bl = 1, br = 1, color = '';
var children = document.getElementsByTagName('img');
var theimages = new Array();
for(i=0;i<children.length;i++) {
child = children[i];
classNames = child.className.split(' ');
for(j=0;j<classNames.length; j++) {
if (classNames[j] == 'corners') {theimages.push(child); break; }
}
}
for(i=0;i<theimages.length;i++) {
image = theimages[i]; iradius = 16; color = '0000ff';
tl = 1; tr = 1; bl = 1; br = 1; iborder = 0;
object = image.parentNode;
canvas = document.createElement('canvas');
if(canvas.getContext) {
classes = image.className.split(' ');
for(j=0;j<classes.length;j++) {
if(classes[j].indexOf("iradius") == 0) {
iradius = classes[j].substring(7);
}else if(classes[j].indexOf("iborder") == 0) {
iborder = classes[j].substring(7);
}else if(classes[j].indexOf("icolor") == 0) {
icolor = classes[j].substring(6);
}else if(classes[j].indexOf("iradiae") == 0) {
tmp = classes[j].substring(7);
tl = (tmp.substr(0,1)!="1"?0:1);
tr = (tmp.substr(1,1)!="1"?0:1);
bl = (tmp.substr(2,1)!="1"?0:1);
br = (tmp.substr(3,1)!="1"?0:1);
}
} newClasses = '';
for(j=0;j<classes.length;j++) {
if(classes[j] != "corners") {
if(newClasses) { newClasses += ' '; }
newClasses += classes[j];
}
}
canvas.className = newClasses;
canvas.style.cssText = image.style.cssText;
canvas.style.height = image.height+'px';
canvas.style.width = image.width+'px';
canvas.height = image.height;
canvas.width = image.width;
canvas.src = image.src; canvas.alt = image.alt;
if(image.id!='') canvas.id = image.id;
if(image.title!='') canvas.title = image.title;
if(image.getAttribute('onclick')!='') canvas.setAttribute('onclick',image.getAttribute('onclick'));
maxdim = Math.min(canvas.width,canvas.height)/2;
mindim = (iradius==0?16:iradius);
iradius = Math.min(maxdim,mindim);
iborder = Math.min(iborder*2,iradius);
color = (icolor.match(/^[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]$/i)?icolor:color);
context = canvas.getContext("2d");
if(image.getAttribute("usemap")) {
object.style.position = 'relative';
object.style.height = image.height+'px';
object.style.width = image.width+'px';
canvas.left = 0; canvas.top = 0;
canvas.style.position = 'absolute';
canvas.style.left = 0 + 'px';
canvas.style.top = 0 + 'px';
image.left = 0; image.top = 0;
image.style.position = 'absolute';
image.style.height = image.height+'px';
image.style.width = image.width+'px';
image.style.left = 0 + 'px';
image.style.top = 0 + 'px';
image.style.opacity = 0;
object.insertBefore(canvas,image);
}else {
object.replaceChild(canvas,image);
}
context.clearRect(0,0,canvas.width,canvas.height);
globalCompositeOperation = "source-in";
roundedCorners(context,canvas.width,canvas.height,iradius,tl,tr,bl,br);
context.clip();
context.fillStyle = 'rgba(0,0,0,0)';
context.fillRect(0,0,canvas.width,canvas.height);
context.drawImage(image,0,0,canvas.width,canvas.height);
if(iborder>0) {
roundedCorners(context,canvas.width,canvas.height,iradius,tl,tr,bl,br);
context.strokeStyle = '#'+color;
context.lineWidth = iborder;
context.stroke();
}
canvas.style.visibility = 'visible';
}
}
}

var cornersOnload = window.onload;
window.onload = function () { if(cornersOnload) cornersOnload(); if(isIE){addRoundedIECorners(); }else {addRoundedCorners();}}

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