1/*
2 * Copyright 2014 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8#include "include/core/SkTypes.h"
9
10#if !defined(SK_TEST_CANVAS_STATE_CROSS_LIBRARY)
11
12#include "tests/CanvasStateHelpers.h"
13
14#include "include/core/SkCanvas.h"
15#include "include/core/SkClipOp.h"
16#include "include/core/SkColor.h"
17#include "include/core/SkPaint.h"
18#include "include/core/SkRect.h"
19#include "include/core/SkRegion.h"
20#include "include/core/SkScalar.h"
21#include "include/utils/SkCanvasStateUtils.h"
22
23#include <memory>
24
25void complex_layers_draw(SkCanvas* canvas, float left, float top,
26                         float right, float bottom, int32_t spacer) {
27    SkPaint bluePaint;
28    bluePaint.setColor(SK_ColorBLUE);
29    bluePaint.setStyle(SkPaint::kFill_Style);
30
31    SkRect rect = SkRect::MakeLTRB(left, top, right, bottom);
32    canvas->drawRect(rect, bluePaint);
33    canvas->translate(0, rect.height() + spacer);
34    canvas->drawRect(rect, bluePaint);
35}
36
37extern "C" bool complex_layers_draw_from_canvas_state(SkCanvasState* state,
38        float left, float top, float right, float bottom, int32_t spacer) {
39    std::unique_ptr<SkCanvas> canvas = SkCanvasStateUtils::MakeFromCanvasState(state);
40    if (!canvas) {
41        return false;
42    }
43    complex_layers_draw(canvas.get(), left, top, right, bottom, spacer);
44    return true;
45}
46
47void complex_clips_draw(SkCanvas* canvas, int32_t left, int32_t top,
48        int32_t right, int32_t bottom, int32_t clipOp, const SkRegion& localRegion) {
49    canvas->save();
50    SkRect clipRect = SkRect::MakeLTRB(SkIntToScalar(left), SkIntToScalar(top),
51                                       SkIntToScalar(right), SkIntToScalar(bottom));
52    canvas->clipRect(clipRect, (SkRegion::Op) clipOp);
53    canvas->drawColor(SK_ColorBLUE);
54    canvas->restore();
55
56    canvas->clipRegion(localRegion, (SkClipOp) clipOp);
57    canvas->drawColor(SK_ColorBLUE);
58}
59
60extern "C" bool complex_clips_draw_from_canvas_state(SkCanvasState* state,
61        int32_t left, int32_t top, int32_t right, int32_t bottom, int32_t clipOp,
62        int32_t regionRects, int32_t* rectCoords) {
63    std::unique_ptr<SkCanvas> canvas = SkCanvasStateUtils::MakeFromCanvasState(state);
64    if (!canvas) {
65        return false;
66    }
67
68    SkRegion localRegion;
69    for (int32_t i = 0; i < regionRects; ++i) {
70        localRegion.op({rectCoords[0], rectCoords[1], rectCoords[2], rectCoords[3]},
71                       SkRegion::kUnion_Op);
72        rectCoords += 4;
73    }
74
75    complex_clips_draw(canvas.get(), left, top, right, bottom, clipOp, localRegion);
76    return true;
77}
78
79#endif // SK_TEST_CANVAS_STATE_CROSS_LIBRARY
80