72 lines
2.4 KiB
C++
72 lines
2.4 KiB
C++
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/*
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* Copyright 2014 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "CanvasStateHelpers.h"
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#ifdef SK_SUPPORT_LEGACY_CLIPTOLAYERFLAG
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#include "SkCanvas.h"
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#include "SkCanvasStateUtils.h"
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#include "SkPaint.h"
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#include "SkRect.h"
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#include "SkRegion.h"
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void complex_layers_draw(SkCanvas* canvas, float left, float top,
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float right, float bottom, int32_t spacer) {
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SkPaint bluePaint;
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bluePaint.setColor(SK_ColorBLUE);
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bluePaint.setStyle(SkPaint::kFill_Style);
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SkRect rect = SkRect::MakeLTRB(left, top, right, bottom);
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canvas->drawRect(rect, bluePaint);
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canvas->translate(0, rect.height() + spacer);
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canvas->drawRect(rect, bluePaint);
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}
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extern "C" bool complex_layers_draw_from_canvas_state(SkCanvasState* state,
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float left, float top, float right, float bottom, int32_t spacer) {
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SkCanvas* canvas = SkCanvasStateUtils::CreateFromCanvasState(state);
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if (!canvas) {
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return false;
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}
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complex_layers_draw(canvas, left, top, right, bottom, spacer);
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canvas->unref();
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return true;
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}
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void complex_clips_draw(SkCanvas* canvas, int32_t left, int32_t top,
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int32_t right, int32_t bottom, int32_t clipOp, const SkRegion& localRegion) {
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canvas->save();
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SkRect clipRect = SkRect::MakeLTRB(SkIntToScalar(left), SkIntToScalar(top),
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SkIntToScalar(right), SkIntToScalar(bottom));
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canvas->clipRect(clipRect, (SkRegion::Op) clipOp);
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canvas->drawColor(SK_ColorBLUE);
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canvas->restore();
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canvas->clipRegion(localRegion, (SkRegion::Op) clipOp);
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canvas->drawColor(SK_ColorBLUE);
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}
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extern "C" bool complex_clips_draw_from_canvas_state(SkCanvasState* state,
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int32_t left, int32_t top, int32_t right, int32_t bottom, int32_t clipOp,
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int32_t regionRects, int32_t* rectCoords) {
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SkCanvas* canvas = SkCanvasStateUtils::CreateFromCanvasState(state);
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if (!canvas) {
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return false;
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}
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SkRegion localRegion;
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for (int32_t i = 0; i < regionRects; ++i) {
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localRegion.op(rectCoords[0], rectCoords[1], rectCoords[2], rectCoords[3],
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SkRegion::kUnion_Op);
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rectCoords += 4;
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}
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complex_clips_draw(canvas, left, top, right, bottom, clipOp, localRegion);
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canvas->unref();
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return true;
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}
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#endif // SK_SUPPORT_LEGACY_CLIPTOLAYERFLAG
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