af236b5aa9
BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1978573003 Committed: https://skia.googlesource.com/skia/+/56a11e4d6f3d436a3c2497c9c9e71a117d78a93f Review-Url: https://codereview.chromium.org/1978573003
66 lines
1.5 KiB
C++
66 lines
1.5 KiB
C++
/*
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* Copyright 2016 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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#ifndef Viewer_DEFINED
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#define Viewer_DEFINED
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#include "sk_app/Application.h"
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#include "sk_app/CommandSet.h"
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#include "sk_app/Window.h"
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#include "gm.h"
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#include "SkAnimTimer.h"
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#include "Slide.h"
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class SkCanvas;
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class Viewer : public sk_app::Application {
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public:
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Viewer(int argc, char** argv, void* platformData);
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~Viewer() override;
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void onPaint(SkCanvas* canvas);
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void onIdle(double ms) override;
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bool onTouch(int owner, sk_app::Window::InputState state, float x, float y);
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private:
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void initSlides();
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void updateTitle();
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void setupCurrentSlide(int previousSlide);
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void drawStats(SkCanvas* canvas);
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void changeZoomLevel(float delta);
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SkMatrix computeMatrix();
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sk_app::Window* fWindow;
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static const int kMeasurementCount = 64; // should be power of 2 for fast mod
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double fMeasurements[kMeasurementCount];
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int fCurrentMeasurement;
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SkAnimTimer fAnimTimer;
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SkTArray<sk_sp<Slide>> fSlides;
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int fCurrentSlide;
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bool fDisplayStats;
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sk_app::Window::BackendType fBackendType;
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// transform data
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SkScalar fZoomCenterX;
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SkScalar fZoomCenterY;
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SkScalar fZoomLevel;
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SkScalar fZoomScale;
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sk_app::CommandSet fCommands;
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SkTouchGesture fGesture;
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};
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#endif
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