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Specs: Simplify the paint model. Now you are not responsible for

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actually telling your child to paint, you just say where it would
paint. The platform then takes care of making sure all the dirty nodes
have their paint() methods called.

Review URL: https://codereview.chromium.org/744843003
This commit is contained in:
Hixie 2014-11-20 15:30:30 -08:00
parent edcbad7686
commit eedc2410f2
2 changed files with 16 additions and 18 deletions
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30
examples/style/hex-layout.sky
View file

@ -69,22 +69,20 @@
let loop = children.next();
while (!loop.done) {
let child = loop.value;
if (child.needsPaint || child.descendantNeedsPaint) {
canvas.save();
try {
canvas.beginPath();
canvas.moveTo(child.x, child.y + cellDim/4);
canvas.lineTo(child.x + cellDim/2, child.y);
canvas.lineTo(child.x + cellDim, child.y + cellDim/4);
canvas.lineTo(child.x + cellDim, child.y + 3*cellDim/4);
canvas.lineTo(child.x + cellDim/2, child.y + cellDim);
canvas.moveTo(child.x, child.y + 3*cellDim/4);
canvas.closePath();
canvas.clip();
this.paintChild(child);
} finally {
canvas.restore();
}
canvas.save();
try {
canvas.beginPath();
canvas.moveTo(child.x, child.y + cellDim/4);
canvas.lineTo(child.x + cellDim/2, child.y);
canvas.lineTo(child.x + cellDim, child.y + cellDim/4);
canvas.lineTo(child.x + cellDim, child.y + 3*cellDim/4);
canvas.lineTo(child.x + cellDim/2, child.y + cellDim);
canvas.moveTo(child.x, child.y + 3*cellDim/4);
canvas.closePath();
canvas.clip();
canvas.paintChild(child);
} finally {
canvas.restore();
}
loop = children.next();
}

4
examples/style/toolbar-layout.sky
View file

@ -188,9 +188,9 @@ SKY MODULE
let children = this.walkChildren();
let loop = children.next();
while ((!loop.done) && (loop.value != this.firstSkippedChild))
this.paintChild(loop.value, canvas);
canvas.paintChild(loop.value);
if (this.showingOverflow)
this.paintChild(this.overflowChild, canvas);
canvas.paintChild(this.overflowChild);
}
function inChild(child, x, y) {
return (x >= child.x) && (y >= child.y) && (x < child.x+child.width) && (y < child.y+child.height);