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border-radius parsing

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Niklas von Hertzen
2012-06-26 17:18:34 +03:00
parent cce6e3537c
commit 730ebcfcaa
3 changed files with 43 additions and 27 deletions
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56
src/Parse.js
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@ -619,6 +619,7 @@ _html2canvas.Parse = function ( images, options ) {
by,
bw,
bh,
i,
borderArgs,
borderBounds,
borders = (function(el){
@ -636,9 +637,10 @@ _html2canvas.Parse = function ( images, options ) {
return borders;
}(el)),
// http://www.w3.org/TR/css3-background/#the-border-radius
borderRadius = (function( el ) {
var borders = [],
sides = ["TopLeft","TopRight","BottomLeft","BottomRight"],
sides = ["TopLeft","TopRight","BottomRight","BottomLeft"],
s;
for (s = 0; s < 4; s+=1){
@ -664,10 +666,11 @@ _html2canvas.Parse = function ( images, options ) {
// top border
bh = borders[0].width;
borderArgs[ 0 ] = [ bx, by ]; // top left
borderArgs[ 1 ] = [ bx + bw, by ]; // top right
borderArgs[ 2 ] = [ bx + bw - borders[ 1 ].width, by + bh ]; // bottom right
borderArgs[ 3 ] = [ bx + borders[ 3 ].width, by + bh ]; // bottom left
i = 0;
borderArgs[ i++ ] = [ "line", bx, by ]; // top left
borderArgs[ i++ ] = [ "line", bx + bw, by ]; // top right
borderArgs[ i++ ] = [ "line", bx + bw - borders[ 1 ].width, by + bh ]; // bottom right
borderArgs[ i++ ] = [ "line", bx + borders[ 3 ].width, by + bh ]; // bottom left
break;
case 1:
@ -675,31 +678,35 @@ _html2canvas.Parse = function ( images, options ) {
bx = x + w - (borders[1].width);
bw = borders[1].width;
borderArgs[ 0 ] = [ bx, by + borders[ 0 ].width]; // top left
borderArgs[ 1 ] = [ bx + bw, by ]; // top right
borderArgs[ 2 ] = [ bx + bw, by + bh + borders[ 2 ].width ]; // bottom right
borderArgs[ 3 ] = [ bx, by + bh ]; // bottom left
i = 0;
borderArgs[ i++ ] = [ "line", bx, by + borders[ 0 ].width]; // top left
borderArgs[ i++ ] = [ "line", bx + bw, by ]; // top right
borderArgs[ i++ ] = [ "line", bx + bw, by + bh + borders[ 2 ].width ]; // bottom right
borderArgs[ i++ ] = [ "line", bx, by + bh ]; // bottom left
break;
case 2:
// bottom border
by = (by + h) - (borders[2].width);
bh = borders[2].width;
borderArgs[ 0 ] = [ bx + borders[ 3 ].width, by ]; // top left
borderArgs[ 1 ] = [ bx + bw - borders[ 2 ].width, by ]; // top right
borderArgs[ 2 ] = [ bx + bw, by + bh ]; // bottom right
borderArgs[ 3 ] = [ bx, by + bh ]; // bottom left
i = 0;
borderArgs[ i++ ] = [ "line", bx + borders[ 3 ].width, by ]; // top left
borderArgs[ i++ ] = [ "line", bx + bw - borders[ 2 ].width, by ]; // top right
borderArgs[ i++ ] = [ "line", bx + bw, by + bh ]; // bottom right
borderArgs[ i++ ] = [ "line", bx, by + bh ]; // bottom left
break;
case 3:
// left border
bw = borders[3].width;
borderArgs[ 0 ] = [ bx, by ]; // top left
borderArgs[ 1 ] = [ bx + bw, by + borders[ 0 ].width ]; // top right
borderArgs[ 2 ] = [ bx + bw, by + bh ]; // bottom right
borderArgs[ 3 ] = [ bx, by + bh + borders[ 2 ].width ]; // bottom left
i = 0;
borderArgs[ i++ ] = [ "line", bx, by ]; // top left
borderArgs[ i++ ] = [ "line", bx + bw, by + borders[ 0 ].width ]; // top right
borderArgs[ i++ ] = [ "line", bx + bw, by + bh ]; // bottom right
borderArgs[ i++ ] = [ "line", bx, by + bh + borders[ 2 ].width ]; // bottom left
break;
}
@ -721,12 +728,13 @@ _html2canvas.Parse = function ( images, options ) {
if ( borderData.color !== "transparent" ){
ctx.setVariable( "fillStyle", borderData.color );
var shape = ctx.drawShape();
shape.moveTo.apply( null, borderArgs[ 0 ] ); // top left
shape.lineTo.apply( null, borderArgs[ 1 ] ); // top right
shape.lineTo.apply( null, borderArgs[ 2 ] ); // bottom right
shape.lineTo.apply( null, borderArgs[ 3 ] ); // bottom left
// ctx.fillRect (x, y, w, h);
var shape = ctx.drawShape(),
numBorderArgs = borderArgs.length;
for ( i = 0; i < numBorderArgs; i++ ) {
shape[( i === 0) ? "moveTo" : borderArgs[ i ][ 0 ] + "To" ].apply( null, borderArgs[ i ].slice(1) );
}
numDraws+=1;
}