1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
|
/*
* 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 "SkScalar.h"
#include "SkTDArray.h"
#include "SkTouchGesture.h"
#include "SkWindow.h"
class GrContext;
class GrRenderTarget;
class SkCanvas;
class SkData;
class SkEvent;
class SkPicture;
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
kNullGPU_DeviceType,
#endif // SK_SUPPORT_GPU
kDeviceTypeCnt
};
static bool IsGpuDeviceType(DeviceType devType) {
#if SK_SUPPORT_GPU
switch (devType) {
case kGPU_DeviceType:
#if SK_ANGLE
case kANGLE_DeviceType:
#endif // SK_ANGLE
case kNullGPU_DeviceType:
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 SkDevice objects into an SkCanvas
* * customize publishing the results of draw to the OS window
* * manage GrContext / GrRenderTarget lifetimes
*/
class DeviceManager : public SkRefCnt {
public:
SK_DECLARE_INST_COUNT(DeviceManager)
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 SkCanvas* createCanvas(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();
virtual SkCanvas* createCanvas() SK_OVERRIDE {
SkCanvas* canvas = NULL;
if (fDevManager) {
canvas = fDevManager->createCanvas(fDeviceType, this);
}
if (NULL == canvas) {
canvas = this->INHERITED::createCanvas();
}
return canvas;
}
virtual void draw(SkCanvas* canvas);
void setDeviceType(DeviceType type);
void toggleRendering();
void toggleSlideshow();
void toggleFPS();
void showOverview();
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();
SkData* getPDFData() { return fPDFData; }
void postInvalDelay();
DeviceType getDeviceType() const { return fDeviceType; }
protected:
virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE;
virtual bool onHandleKey(SkKey key) SK_OVERRIDE;
virtual bool onHandleChar(SkUnichar) SK_OVERRIDE;
virtual void onSizeChange() SK_OVERRIDE;
virtual SkCanvas* beforeChildren(SkCanvas*) SK_OVERRIDE;
virtual void afterChildren(SkCanvas*) SK_OVERRIDE;
virtual void beforeChild(SkView* child, SkCanvas* canvas) SK_OVERRIDE;
virtual void afterChild(SkView* child, SkCanvas* canvas) SK_OVERRIDE;
virtual bool onEvent(const SkEvent& evt) SK_OVERRIDE;
virtual bool onQuery(SkEvent* evt) SK_OVERRIDE;
virtual bool onDispatchClick(int x, int y, Click::State, void* owner,
unsigned modi) SK_OVERRIDE;
virtual bool onClick(Click* click) SK_OVERRIDE;
virtual Click* onFindClickHandler(SkScalar x, SkScalar y,
unsigned modi) SK_OVERRIDE;
void registerPictFileSamples(char** argv, int argc);
void registerPictFileSample(char** argv, int argc);
private:
class DefaultDeviceManager;
int fCurrIndex;
SkPicture* fPicture;
SkPath fClipPath;
SkTouchGesture fGesture;
SkScalar fZoomLevel;
SkScalar fZoomScale;
DeviceType fDeviceType;
DeviceManager* fDevManager;
bool fSaveToPdf;
SkCanvas* fPdfCanvas;
SkData* fPDFData;
bool fUseClip;
bool fNClip;
bool fAnimating;
bool fRotate;
bool fPerspAnim;
SkScalar fPerspAnimTime;
bool fScale;
bool fRequestGrabImage;
bool fMeasureFPS;
SkMSec fMeasureFPS_Time;
SkMSec fMeasureFPS_StartTime;
bool fMagnify;
SkISize fTileCount;
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 fFilterState;
SkOSMenu::TriState fHintingState;
SkOSMenu::TriState fTilingState;
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 zoomIn();
bool zoomOut();
void updatePointer(int x, int y);
void magnify(SkCanvas* canvas);
void showZoomer(SkCanvas* canvas);
void updateMatrix();
void postAnimatingEvent();
void installDrawFilter(SkCanvas*);
int findByTitle(const char*);
void listTitles();
typedef SkOSWindow INHERITED;
};
#endif
|
