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add svg powered rendering

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This commit is contained in:
Niklas von Hertzen
2012-03-06 17:11:10 +02:00
parent 59306c839b
commit c08ac5d0c4
3 changed files with 160 additions and 156 deletions
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123
src/renderers/Canvas.js
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@@ -107,85 +107,88 @@ html2canvas.Renderer.Canvas = function( options ) {
ctx.fillRect(0, 0, canvas.width, canvas.height);
ctx.fillStyle = fstyle;
for (i = 0, queueLen = queue.length; i < queueLen; i+=1){
if ( options.svgRendering && zStack.svgRender !== undefined ) {
// TODO: enable async rendering to support this
ctx.drawImage( zStack.svgRender, 0, 0 );
} else {
for ( i = 0, queueLen = queue.length; i < queueLen; i+=1 ) {
storageContext = queue.splice(0, 1)[0];
storageContext.canvasPosition = storageContext.canvasPosition || {};
storageContext = queue.splice(0, 1)[0];
storageContext.canvasPosition = storageContext.canvasPosition || {};
//this.canvasRenderContext(storageContext,parentctx);
//this.canvasRenderContext(storageContext,parentctx);
// set common settings for canvas
ctx.textBaseline = "bottom";
// set common settings for canvas
ctx.textBaseline = "bottom";
if (storageContext.clip){
ctx.save();
ctx.beginPath();
// console.log(storageContext);
ctx.rect(storageContext.clip.left, storageContext.clip.top, storageContext.clip.width, storageContext.clip.height);
ctx.clip();
if (storageContext.clip){
ctx.save();
ctx.beginPath();
// console.log(storageContext);
ctx.rect(storageContext.clip.left, storageContext.clip.top, storageContext.clip.width, storageContext.clip.height);
ctx.clip();
}
}
if (storageContext.ctx.storage){
if (storageContext.ctx.storage){
for (a = 0, storageLen = storageContext.ctx.storage.length; a < storageLen; a+=1){
for (a = 0, storageLen = storageContext.ctx.storage.length; a < storageLen; a+=1){
renderItem = storageContext.ctx.storage[a];
renderItem = storageContext.ctx.storage[a];
switch(renderItem.type){
case "variable":
ctx[renderItem.name] = renderItem['arguments'];
break;
case "function":
if (renderItem.name === "fillRect") {
switch(renderItem.type){
case "variable":
ctx[renderItem.name] = renderItem['arguments'];
break;
case "function":
if (renderItem.name === "fillRect") {
if (!usingFlashcanvas || renderItem['arguments'][0] + renderItem['arguments'][2] < flashMaxSize && renderItem['arguments'][1] + renderItem['arguments'][3] < flashMaxSize) {
ctx.fillRect.apply( ctx, renderItem['arguments'] );
}
}else if(renderItem.name === "fillText") {
if (!usingFlashcanvas || renderItem['arguments'][1] < flashMaxSize && renderItem['arguments'][2] < flashMaxSize) {
ctx.fillText.apply( ctx, renderItem['arguments'] );
}
}else if(renderItem.name === "drawImage") {
if (renderItem['arguments'][8] > 0 && renderItem['arguments'][7]){
if ( hasCTX && options.taintTest ) {
if ( safeImages.indexOf( renderItem['arguments'][ 0 ].src ) === -1 ) {
testctx.drawImage( renderItem['arguments'][ 0 ], 0, 0 );
try {
testctx.getImageData( 0, 0, 1, 1 );
} catch(e) {
testCanvas = doc.createElement("canvas");
testctx = testCanvas.getContext("2d");
continue;
}
safeImages.push( renderItem['arguments'][ 0 ].src );
}
if (!usingFlashcanvas || renderItem['arguments'][0] + renderItem['arguments'][2] < flashMaxSize && renderItem['arguments'][1] + renderItem['arguments'][3] < flashMaxSize) {
ctx.fillRect.apply( ctx, renderItem['arguments'] );
}
ctx.drawImage.apply( ctx, renderItem['arguments'] );
}
}
}else if(renderItem.name === "fillText") {
if (!usingFlashcanvas || renderItem['arguments'][1] < flashMaxSize && renderItem['arguments'][2] < flashMaxSize) {
ctx.fillText.apply( ctx, renderItem['arguments'] );
}
}else if(renderItem.name === "drawImage") {
if (renderItem['arguments'][8] > 0 && renderItem['arguments'][7]){
if ( hasCTX && options.taintTest ) {
if ( safeImages.indexOf( renderItem['arguments'][ 0 ].src ) === -1 ) {
testctx.drawImage( renderItem['arguments'][ 0 ], 0, 0 );
try {
testctx.getImageData( 0, 0, 1, 1 );
} catch(e) {
testCanvas = doc.createElement("canvas");
testctx = testCanvas.getContext("2d");
continue;
}
safeImages.push( renderItem['arguments'][ 0 ].src );
}
}
ctx.drawImage.apply( ctx, renderItem['arguments'] );
}
}
break;
default:
break;
default:
}
}
}
}
if (storageContext.clip){
ctx.restore();
}
}
if (storageContext.clip){
ctx.restore();
}
}
}
h2clog("html2canvas: Renderer: Canvas renderer done - returning canvas obj");
queueLen = options.elements.length;