skia2/samplecode/SampleApp.h
mtklein 2766c00fc0 remove SkInstCnt
It's been outclassed by Valgrind and leak sanitizer,
and it seems to be causing problems for external folks building Skia.

I'm not sure why our own builds seem unaffected.

Latest thread:
https://groups.google.com/forum/#!topic/skia-discuss/oj9FsQwwSF0

BUG=skia:

Review URL: https://codereview.chromium.org/1217573002
2015-06-26 11:45:03 -07:00

244 lines
6.7 KiB
C++

/*
* Copyright 2011 Skia
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SampleApp_DEFINED
#define SampleApp_DEFINED
#include "SkOSMenu.h"
#include "SkPath.h"
#include "SkPicture.h"
#include "SkPictureRecorder.h"
#include "SkScalar.h"
#include "SkTDArray.h"
#include "SkTouchGesture.h"
#include "SkWindow.h"
class GrContext;
class GrRenderTarget;
class SkCanvas;
class SkData;
class SkDeferredCanvas;
class SkDocument;
class SkEvent;
class SkTypeface;
class SkViewFactory;
class SampleWindow : public SkOSWindow {
SkTDArray<const SkViewFactory*> fSamples;
public:
enum DeviceType {
kRaster_DeviceType,
kPicture_DeviceType,
#if SK_SUPPORT_GPU
kGPU_DeviceType,
#if SK_ANGLE
kANGLE_DeviceType,
#endif // SK_ANGLE
#endif // SK_SUPPORT_GPU
kDeferred_DeviceType,
kDeviceTypeCnt
};
static bool IsGpuDeviceType(DeviceType devType) {
#if SK_SUPPORT_GPU
switch (devType) {
case kGPU_DeviceType:
#if SK_ANGLE
case kANGLE_DeviceType:
#endif // SK_ANGLE
return true;
default:
return false;
}
#endif // SK_SUPPORT_GPU
return false;
}
/**
* SampleApp ports can subclass this manager class if they want to:
* * filter the types of devices supported
* * customize plugging of SkBaseDevice objects into an SkCanvas
* * customize publishing the results of draw to the OS window
* * manage GrContext / GrRenderTarget lifetimes
*/
class DeviceManager : public SkRefCnt {
public:
virtual void setUpBackend(SampleWindow* win, int msaaSampleCount) = 0;
virtual void tearDownBackend(SampleWindow* win) = 0;
// called before drawing. should install correct device
// type on the canvas. Will skip drawing if returns false.
virtual SkSurface* createSurface(DeviceType dType, SampleWindow* win) = 0;
// called after drawing, should get the results onto the
// screen.
virtual void publishCanvas(DeviceType dType,
SkCanvas* canvas,
SampleWindow* win) = 0;
// called when window changes size, guaranteed to be called
// at least once before first draw (after init)
virtual void windowSizeChanged(SampleWindow* win) = 0;
// return the GrContext backing gpu devices (NULL if not built with GPU support)
virtual GrContext* getGrContext() = 0;
// return the GrRenderTarget backing gpu devices (NULL if not built with GPU support)
virtual GrRenderTarget* getGrRenderTarget() = 0;
private:
typedef SkRefCnt INHERITED;
};
SampleWindow(void* hwnd, int argc, char** argv, DeviceManager*);
virtual ~SampleWindow();
SkSurface* createSurface() override {
SkSurface* surface = NULL;
if (fDevManager) {
surface = fDevManager->createSurface(fDeviceType, this);
}
if (NULL == surface) {
surface = this->INHERITED::createSurface();
}
return surface;
}
void draw(SkCanvas*) override;
void setDeviceType(DeviceType type);
void toggleRendering();
void toggleSlideshow();
void toggleFPS();
void showOverview();
void toggleDistanceFieldFonts();
GrContext* getGrContext() const { return fDevManager->getGrContext(); }
void setZoomCenter(float x, float y);
void changeZoomLevel(float delta);
bool nextSample();
bool previousSample();
bool goToSample(int i);
SkString getSampleTitle(int i);
int sampleCount();
bool handleTouch(int ownerId, float x, float y,
SkView::Click::State state);
void saveToPdf();
void postInvalDelay();
DeviceType getDeviceType() const { return fDeviceType; }
protected:
void onDraw(SkCanvas* canvas) override;
bool onHandleKey(SkKey key) override;
bool onHandleChar(SkUnichar) override;
void onSizeChange() override;
SkCanvas* beforeChildren(SkCanvas*) override;
void afterChildren(SkCanvas*) override;
void beforeChild(SkView* child, SkCanvas* canvas) override;
bool onEvent(const SkEvent& evt) override;
bool onQuery(SkEvent* evt) override;
virtual bool onDispatchClick(int x, int y, Click::State, void* owner,
unsigned modi) override;
bool onClick(Click* click) override;
virtual Click* onFindClickHandler(SkScalar x, SkScalar y,
unsigned modi) override;
private:
class DefaultDeviceManager;
int fCurrIndex;
SkPictureRecorder fRecorder;
SkAutoTDelete<SkSurface> fDeferredSurface;
SkAutoTDelete<SkDeferredCanvas> fDeferredCanvas;
SkAutoTDelete<SkCanvas> fFlagsFilterCanvas;
SkPath fClipPath;
SkTouchGesture fGesture;
SkScalar fZoomLevel;
SkScalar fZoomScale;
DeviceType fDeviceType;
DeviceManager* fDevManager;
bool fSaveToPdf;
SkAutoTUnref<SkDocument> fPDFDocument;
bool fUseClip;
bool fAnimating;
bool fRotate;
bool fPerspAnim;
bool fRequestGrabImage;
bool fMeasureFPS;
SkMSec fMeasureFPS_Time;
SkMSec fMeasureFPS_StartTime;
bool fMagnify;
int fTilingMode;
SkOSMenu::TriState fPipeState; // Mixed uses a tiled pipe
// On uses a normal pipe
// Off uses no pipe
int fUsePipeMenuItemID;
// The following are for the 'fatbits' drawing
// Latest position of the mouse.
int fMouseX, fMouseY;
int fFatBitsScale;
// Used by the text showing position and color values.
SkTypeface* fTypeface;
bool fShowZoomer;
SkOSMenu::TriState fLCDState;
SkOSMenu::TriState fAAState;
SkOSMenu::TriState fSubpixelState;
int fHintingState;
int fFilterQualityIndex;
unsigned fFlipAxis;
int fMSAASampleCount;
int fScrollTestX, fScrollTestY;
SkScalar fZoomCenterX, fZoomCenterY;
//Stores global settings
SkOSMenu* fAppMenu; // We pass ownership to SkWindow, when we call addMenu
//Stores slide specific settings
SkOSMenu* fSlideMenu; // We pass ownership to SkWindow, when we call addMenu
int fTransitionNext;
int fTransitionPrev;
void loadView(SkView*);
void updateTitle();
bool getRawTitle(SkString*);
bool zoomIn();
bool zoomOut();
void updatePointer(int x, int y);
void magnify(SkCanvas* canvas);
void showZoomer(SkCanvas* canvas);
void updateMatrix();
void postAnimatingEvent();
int findByTitle(const char*);
void listTitles();
SkSize tileSize() const;
bool sendAnimatePulse();
typedef SkOSWindow INHERITED;
};
#endif