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/SkColor.h"
16 #include "include/core/SkPaint.h"
17 #include "include/core/SkRect.h"
18 #include "include/core/SkRegion.h"
19 #include "include/core/SkScalar.h"
20 #include "include/utils/SkCanvasStateUtils.h"
21
22 #include <memory>
23
24 enum class SkClipOp;
25
complex_layers_draw(SkCanvas * canvas,float left,float top,float right,float bottom,int32_t spacer)26 void complex_layers_draw(SkCanvas* canvas, float left, float top,
27 float right, float bottom, int32_t spacer) {
28 SkPaint bluePaint;
29 bluePaint.setColor(SK_ColorBLUE);
30 bluePaint.setStyle(SkPaint::kFill_Style);
31
32 SkRect rect = SkRect::MakeLTRB(left, top, right, bottom);
33 canvas->drawRect(rect, bluePaint);
34 canvas->translate(0, rect.height() + spacer);
35 canvas->drawRect(rect, bluePaint);
36 }
37
complex_layers_draw_from_canvas_state(SkCanvasState * state,float left,float top,float right,float bottom,int32_t spacer)38 extern "C" bool complex_layers_draw_from_canvas_state(SkCanvasState* state,
39 float left, float top, float right, float bottom, int32_t spacer) {
40 std::unique_ptr<SkCanvas> canvas = SkCanvasStateUtils::MakeFromCanvasState(state);
41 if (!canvas) {
42 return false;
43 }
44 complex_layers_draw(canvas.get(), left, top, right, bottom, spacer);
45 return true;
46 }
47
complex_clips_draw(SkCanvas * canvas,int32_t left,int32_t top,int32_t right,int32_t bottom,int32_t clipOp,const SkRegion & localRegion)48 void complex_clips_draw(SkCanvas* canvas, int32_t left, int32_t top,
49 int32_t right, int32_t bottom, int32_t clipOp, const SkRegion& localRegion) {
50 canvas->save();
51 SkRect clipRect = SkRect::MakeLTRB(SkIntToScalar(left), SkIntToScalar(top),
52 SkIntToScalar(right), SkIntToScalar(bottom));
53 canvas->clipRect(clipRect, (SkRegion::Op) clipOp);
54 canvas->drawColor(SK_ColorBLUE);
55 canvas->restore();
56
57 canvas->clipRegion(localRegion, (SkClipOp) clipOp);
58 canvas->drawColor(SK_ColorBLUE);
59 }
60
complex_clips_draw_from_canvas_state(SkCanvasState * state,int32_t left,int32_t top,int32_t right,int32_t bottom,int32_t clipOp,int32_t regionRects,int32_t * rectCoords)61 extern "C" bool complex_clips_draw_from_canvas_state(SkCanvasState* state,
62 int32_t left, int32_t top, int32_t right, int32_t bottom, int32_t clipOp,
63 int32_t regionRects, int32_t* rectCoords) {
64 std::unique_ptr<SkCanvas> canvas = SkCanvasStateUtils::MakeFromCanvasState(state);
65 if (!canvas) {
66 return false;
67 }
68
69 SkRegion localRegion;
70 for (int32_t i = 0; i < regionRects; ++i) {
71 localRegion.op({rectCoords[0], rectCoords[1], rectCoords[2], rectCoords[3]},
72 SkRegion::kUnion_Op);
73 rectCoords += 4;
74 }
75
76 complex_clips_draw(canvas.get(), left, top, right, bottom, clipOp, localRegion);
77 return true;
78 }
79
80 #endif // SK_TEST_CANVAS_STATE_CROSS_LIBRARY
81