1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "gm.h"
static void saveLayer(SkCanvas* canvas, SkScalar l, SkScalar t, SkScalar r, SkScalar b) {
uint32_t flag = 1U << 31;
SkRect rect = SkRect::MakeLTRB(l, t, r, b);
canvas->saveLayer({ &rect, nullptr, nullptr, flag });
}
static void do_draw(SkCanvas* canvas) {
SkPaint paint;
SkRandom rand;
SkAutoCanvasRestore acr(canvas, true);
for (int i = 0; i < 20; ++i) {
paint.setColor(rand.nextU() | (0xFF << 24));
canvas->drawRect({ 15, 15, 290, 40 }, paint);
canvas->translate(0, 30);
}
}
DEF_SIMPLE_GM(savelayer_unclipped, canvas, 320, 640) {
const SkScalar L = 10;
const SkScalar T = 10;
const SkScalar R = 310;
const SkScalar B = 630;
canvas->clipRect({ L, T, R, B });
for (int i = 0; i < 100; ++i) {
SkAutoCanvasRestore acr(canvas, true);
saveLayer(canvas, L, T, R, T + 20);
saveLayer(canvas, L, B - 20, R, B);
do_draw(canvas);
}
}
|
