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