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
|
/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SampleCode.h"
#include "SkCanvas.h"
#if SK_SUPPORT_GPU
# include "GrContext.h"
#else
class GrContext;
#endif
//////////////////////////////////////////////////////////////////////////////
bool SampleCode::CharQ(const SkEvent& evt, SkUnichar* outUni) {
if (evt.isType(gCharEvtName, sizeof(gCharEvtName) - 1)) {
if (outUni) {
*outUni = evt.getFast32();
}
return true;
}
return false;
}
bool SampleCode::KeyQ(const SkEvent& evt, SkKey* outKey) {
if (evt.isType(gKeyEvtName, sizeof(gKeyEvtName) - 1)) {
if (outKey) {
*outKey = (SkKey)evt.getFast32();
}
return true;
}
return false;
}
bool SampleCode::TitleQ(const SkEvent& evt) {
return evt.isType(gTitleEvtName, sizeof(gTitleEvtName) - 1);
}
void SampleCode::TitleR(SkEvent* evt, const char title[]) {
SkASSERT(evt && TitleQ(*evt));
evt->setString(gTitleEvtName, title);
}
bool SampleCode::RequestTitle(SkView* view, SkString* title) {
SkEvent evt(gTitleEvtName);
if (view->doQuery(&evt)) {
title->set(evt.findString(gTitleEvtName));
return true;
}
return false;
}
bool SampleCode::PrefSizeQ(const SkEvent& evt) {
return evt.isType(gPrefSizeEvtName, sizeof(gPrefSizeEvtName) - 1);
}
void SampleCode::PrefSizeR(SkEvent* evt, SkScalar width, SkScalar height) {
SkASSERT(evt && PrefSizeQ(*evt));
SkScalar size[2];
size[0] = width;
size[1] = height;
evt->setScalars(gPrefSizeEvtName, 2, size);
}
bool SampleCode::FastTextQ(const SkEvent& evt) {
return evt.isType(gFastTextEvtName, sizeof(gFastTextEvtName) - 1);
}
SkViewRegister* SkViewRegister::gHead;
SkViewRegister::SkViewRegister(SkViewFactory* fact) : fFact(fact) {
fFact->ref();
fChain = gHead;
gHead = this;
}
///////////////////////////////////////////////////////////////////////////////
SkFuncViewFactory::SkFuncViewFactory(SkViewCreateFunc func)
: fCreateFunc(func) {
}
SkView* SkFuncViewFactory::operator() () const {
return (*fCreateFunc)();
}
#include "GMSampleView.h"
SkGMSampleViewFactory::SkGMSampleViewFactory(GMFactoryFunc func)
: fFunc(func) {
}
SkView* SkGMSampleViewFactory::operator() () const {
skiagm::GM* gm = fFunc(nullptr);
gm->setMode(skiagm::GM::kSample_Mode);
return new GMSampleView(gm);
}
SkViewRegister::SkViewRegister(SkViewCreateFunc func) {
fFact = new SkFuncViewFactory(func);
fChain = gHead;
gHead = this;
}
SkViewRegister::SkViewRegister(GMFactoryFunc func) {
fFact = new SkGMSampleViewFactory(func);
fChain = gHead;
gHead = this;
}
///////////////////////////////////////////////////////////////////////////////
static const char is_sample_view_tag[] = "sample-is-sample-view";
static const char repeat_count_tag[] = "sample-set-repeat-count";
bool SampleView::IsSampleView(SkView* view) {
SkEvent evt(is_sample_view_tag);
return view->doQuery(&evt);
}
bool SampleView::SetRepeatDraw(SkView* view, int count) {
SkEvent evt(repeat_count_tag);
evt.setFast32(count);
return view->doEvent(evt);
}
bool SampleView::onEvent(const SkEvent& evt) {
if (evt.isType(repeat_count_tag)) {
fRepeatCount = evt.getFast32();
return true;
}
return this->INHERITED::onEvent(evt);
}
bool SampleView::onQuery(SkEvent* evt) {
if (evt->isType(is_sample_view_tag)) {
return true;
}
return this->INHERITED::onQuery(evt);
}
void SampleView::onDraw(SkCanvas* canvas) {
if (!fHaveCalledOnceBeforeDraw) {
fHaveCalledOnceBeforeDraw = true;
this->onOnceBeforeDraw();
}
this->onDrawBackground(canvas);
for (int i = 0; i < fRepeatCount; i++) {
SkAutoCanvasRestore acr(canvas, true);
this->onDrawContent(canvas);
#if SK_SUPPORT_GPU
// Ensure the GrContext doesn't combine GrDrawOps across draw loops.
if (GrContext* context = canvas->getGrContext()) {
context->flush();
}
#endif
}
}
void SampleView::onDrawBackground(SkCanvas* canvas) {
canvas->drawColor(fBGColor);
}
|
