blob: 1ed135d819ac85202c9cc798b6da89af8e0e124b [file] [log] [blame]
/*
* 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 "SkTouchGesture.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() override;
bool onTouch(intptr_t owner, sk_app::Window::InputState state, float x, float y);
void onUIStateChanged(const SkString& stateName, const SkString& stateValue);
private:
void initSlides();
void updateTitle();
void setupCurrentSlide(int previousSlide);
void updateUIState();
void drawSlide(SkCanvas* canvs, bool inSplitScreen);
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;
bool fRefresh; // whether to continuously refresh for measuring render time
// whether to split the screen and draw two copies of the slide, one with sRGB and one without
bool fSplitScreen;
sk_app::Window::BackendType fBackendType;
// transform data
SkScalar fZoomCenterX;
SkScalar fZoomCenterY;
SkScalar fZoomLevel;
SkScalar fZoomScale;
sk_app::CommandSet fCommands;
SkTouchGesture fGesture;
// identity unless the window initially scales the content to fit the screen.
SkMatrix fDefaultMatrix;
SkMatrix fDefaultMatrixInv;
Json::Value fAllSlideNames; // cache all slide names for fast updateUIState
};
#endif