97 lines
2.6 KiB
C++
97 lines
2.6 KiB
C++
/*
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* Copyright 2015 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 "gm.h"
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#include "SkCanvas.h"
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#include "SkImage.h"
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#include "SkPictureRecorder.h"
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#if SK_SUPPORT_GPU
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#include "GrContext.h"
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#endif
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static void draw_something(SkCanvas* canvas, const SkRect& bounds) {
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SkPaint paint;
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paint.setAntiAlias(true);
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paint.setColor(SK_ColorRED);
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paint.setStyle(SkPaint::kStroke_Style);
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paint.setStrokeWidth(10);
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canvas->drawRect(bounds, paint);
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paint.setStyle(SkPaint::kFill_Style);
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paint.setColor(SK_ColorBLUE);
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canvas->drawOval(bounds, paint);
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}
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/*
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* Exercise drawing pictures inside an image, showing that the image version is pixelated
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* (correctly) when it is inside an image.
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*/
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class ImagePictGM : public skiagm::GM {
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SkAutoTUnref<SkPicture> fPicture;
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SkAutoTUnref<SkImage> fImage0;
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SkAutoTUnref<SkImage> fImage1;
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public:
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ImagePictGM() {}
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protected:
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SkString onShortName() override {
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return SkString("image-picture");
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}
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SkISize onISize() override {
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return SkISize::Make(850, 450);
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}
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void onOnceBeforeDraw() override {
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const SkRect bounds = SkRect::MakeXYWH(100, 100, 100, 100);
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SkPictureRecorder recorder;
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draw_something(recorder.beginRecording(bounds), bounds);
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fPicture.reset(recorder.endRecording());
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// extract enough just for the oval.
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const SkISize size = SkISize::Make(100, 100);
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SkMatrix matrix;
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matrix.setTranslate(-100, -100);
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fImage0.reset(SkImage::NewFromPicture(fPicture, size, &matrix, nullptr));
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matrix.postTranslate(-50, -50);
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matrix.postRotate(45);
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matrix.postTranslate(50, 50);
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fImage1.reset(SkImage::NewFromPicture(fPicture, size, &matrix, nullptr));
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}
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void drawSet(SkCanvas* canvas) const {
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SkMatrix matrix = SkMatrix::MakeTrans(-100, -100);
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canvas->drawPicture(fPicture, &matrix, nullptr);
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canvas->drawImage(fImage0, 150, 0);
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canvas->drawImage(fImage1, 300, 0);
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}
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void onDraw(SkCanvas* canvas) override {
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canvas->translate(20, 20);
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this->drawSet(canvas);
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canvas->save();
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canvas->translate(0, 130);
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canvas->scale(0.25f, 0.25f);
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this->drawSet(canvas);
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canvas->restore();
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canvas->save();
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canvas->translate(0, 200);
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canvas->scale(2, 2);
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this->drawSet(canvas);
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canvas->restore();
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}
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private:
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typedef skiagm::GM INHERITED;
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};
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DEF_GM( return new ImagePictGM; )
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