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comparison doodle/dia/layer_stack.d @ 74:c03ed75c0f8e

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Icky
author "David Bryant <bagnose@gmail.com>"
date Sun, 15 Aug 2010 01:11:58 +0930
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children b759414d2b72
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73:6f2525e170f2 74:c03ed75c0f8e
1 module doodle.dia.layer_stack;
2
3 public {
4 import doodle.dia.icanvas;
5 }
6
7 final class LayerStack {
8 this(in Layer[] layers) {
9 _layers = layers.dup;
10 }
11
12 Rectangle bounds() const {
13 // Take the union of all layer bounds
14 Rectangle bounds = Rectangle.DEFAULT;
15 foreach (layer; _layers) { bounds = bounds | layer.bounds; }
16 assert(bounds.valid);
17 return bounds;
18 }
19
20 void draw(in Rectangle pixelDamage, scope Context pixelCr,
21 in Rectangle modelDamage, scope Context modelCr) {
22 foreach(layer; _layers) {
23 layer.draw(pixelDamage, pixelCr, modelDamage, modelCr);
24 }
25 }
26
27 private {
28 Layer[] _layers;
29 }
30 }