| /* |
| * Copyright 2016 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef Viewer_DEFINED |
| #define Viewer_DEFINED |
| |
| #include "sk_app/Application.h" |
| #include "sk_app/CommandSet.h" |
| #include "sk_app/Window.h" |
| #include "gm.h" |
| #include "SkAnimTimer.h" |
| #include "Slide.h" |
| |
| class SkCanvas; |
| |
| class Viewer : public sk_app::Application { |
| public: |
| Viewer(int argc, char** argv, void* platformData); |
| ~Viewer() override; |
| |
| void onPaint(SkCanvas* canvas); |
| void onIdle(double ms) override; |
| bool onTouch(int owner, sk_app::Window::InputState state, float x, float y); |
| |
| private: |
| void initSlides(); |
| void updateTitle(); |
| void setupCurrentSlide(int previousSlide); |
| |
| void drawStats(SkCanvas* canvas); |
| |
| void changeZoomLevel(float delta); |
| SkMatrix computeMatrix(); |
| |
| sk_app::Window* fWindow; |
| |
| static const int kMeasurementCount = 64; // should be power of 2 for fast mod |
| double fMeasurements[kMeasurementCount]; |
| int fCurrentMeasurement; |
| |
| SkAnimTimer fAnimTimer; |
| SkTArray<sk_sp<Slide>> fSlides; |
| int fCurrentSlide; |
| |
| bool fDisplayStats; |
| |
| // transform data |
| SkScalar fZoomCenterX; |
| SkScalar fZoomCenterY; |
| SkScalar fZoomLevel; |
| SkScalar fZoomScale; |
| |
| sk_app::CommandSet fCommands; |
| |
| SkTouchGesture fGesture; |
| }; |
| |
| |
| #endif |