| /* |
| * Copyright 2016 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "gm/gm.h" |
| #include "include/core/SkCanvas.h" |
| #include "include/core/SkClipOp.h" |
| #include "include/core/SkColorSpace.h" |
| #include "include/core/SkImageInfo.h" |
| #include "include/core/SkMatrix.h" |
| #include "include/core/SkPaint.h" |
| #include "include/core/SkPoint.h" |
| #include "include/core/SkRRect.h" |
| #include "include/core/SkRect.h" |
| #include "include/core/SkRefCnt.h" |
| #include "include/core/SkRegion.h" |
| #include "include/core/SkSize.h" |
| #include "include/core/SkString.h" |
| #include "include/core/SkTypes.h" |
| #include "include/private/SkColorData.h" |
| #include "src/core/SkCanvasPriv.h" |
| #include "src/core/SkClipStack.h" |
| #include "tools/ToolUtils.h" |
| |
| #include <utility> |
| |
| constexpr static SkIRect kDeviceRect = {0, 0, 600, 600}; |
| constexpr static SkIRect kCoverRect = {50, 50, 550, 550}; |
| |
| namespace skiagm { |
| |
| //////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| /** |
| * Draws a clip that will exercise window rectangles if they are supported. |
| */ |
| class WindowRectanglesGM : public GM { |
| private: |
| DrawResult coverClipStack(const SkClipStack&, SkCanvas*, SkString* errorMsg); |
| |
| SkISize getISize() override { return SkISize::Make(kDeviceRect.width(), kDeviceRect.height()); } |
| SkString getName() const override { return SkString("windowrectangles"); } |
| DrawResult onDraw(SkCanvas*, SkString* errorMsg) override; |
| }; |
| |
| DrawResult WindowRectanglesGM::coverClipStack(const SkClipStack& stack, SkCanvas* canvas, |
| SkString* errorMsg) { |
| SkPaint paint; |
| paint.setColor(0xff00aa80); |
| |
| // Set up the canvas's clip to match our SkClipStack. |
| SkClipStack::Iter iter(stack, SkClipStack::Iter::kBottom_IterStart); |
| for (const SkClipStack::Element* element = iter.next(); element; element = iter.next()) { |
| SkASSERT(!element->isReplaceOp()); |
| SkClipOp op = element->getOp(); |
| bool isAA = element->isAA(); |
| switch (element->getDeviceSpaceType()) { |
| case SkClipStack::Element::DeviceSpaceType::kShader: |
| canvas->clipShader(element->refShader(), op); |
| break; |
| case SkClipStack::Element::DeviceSpaceType::kPath: |
| canvas->clipPath(element->getDeviceSpacePath(), op, isAA); |
| break; |
| case SkClipStack::Element::DeviceSpaceType::kRRect: |
| canvas->clipRRect(element->getDeviceSpaceRRect(), op, isAA); |
| break; |
| case SkClipStack::Element::DeviceSpaceType::kRect: |
| canvas->clipRect(element->getDeviceSpaceRect(), op, isAA); |
| break; |
| case SkClipStack::Element::DeviceSpaceType::kEmpty: |
| canvas->clipRect({ 0, 0, 0, 0 }, SkClipOp::kIntersect, false); |
| break; |
| } |
| } |
| |
| canvas->drawRect(SkRect::Make(kCoverRect), paint); |
| return DrawResult::kOk; |
| } |
| |
| DrawResult WindowRectanglesGM::onDraw(SkCanvas* canvas, SkString* errorMsg) { |
| ToolUtils::draw_checkerboard(canvas, 0xffffffff, 0xffc6c3c6, 25); |
| SkClipStack stack; |
| stack.clipRect(SkRect::MakeXYWH(370.75, 80.25, 149, 100), SkMatrix::I(), |
| SkClipOp::kDifference, false); |
| stack.clipRect(SkRect::MakeXYWH(80.25, 420.75, 150, 100), SkMatrix::I(), |
| SkClipOp::kDifference, true); |
| stack.clipRRect(SkRRect::MakeRectXY(SkRect::MakeXYWH(200, 200, 200, 200), 60, 45), |
| SkMatrix::I(), SkClipOp::kDifference, true); |
| |
| SkRRect nine; |
| nine.setNinePatch(SkRect::MakeXYWH(550 - 30.25 - 100, 370.75, 100, 150), 12, 35, 23, 20); |
| stack.clipRRect(nine, SkMatrix::I(), SkClipOp::kDifference, true); |
| |
| SkRRect complx; |
| SkVector complxRadii[4] = {{6, 4}, {8, 12}, {16, 24}, {48, 32}}; |
| complx.setRectRadii(SkRect::MakeXYWH(80.25, 80.75, 100, 149), complxRadii); |
| stack.clipRRect(complx, SkMatrix::I(), SkClipOp::kDifference, false); |
| |
| return this->coverClipStack(stack, canvas, errorMsg); |
| } |
| |
| DEF_GM( return new WindowRectanglesGM(); ) |
| } // namespace skiagm |