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
|
/*
* Copyright 2011 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 "SkView.h"
#include "SkCanvas.h"
#include "SkAnimator.h"
#include "SkStream.h"
#include "SkDOM.h"
#include <memory>
///////////////////////////////////////////////////////////////////////////////
class SkAnimatorView : public SkView {
public:
SkAnimatorView();
virtual ~SkAnimatorView();
void setURIBase(const char dir[]);
SkAnimator* getAnimator() const { return fAnimator; }
bool decodeFile(const char path[]);
bool decodeMemory(const void* buffer, size_t size);
bool decodeStream(SkStream* stream);
protected:
// overrides
virtual void onDraw(SkCanvas*);
virtual bool onQuery(SkEvent* evt);
private:
SkString fBaseURI;
SkAnimator* fAnimator;
typedef SkView INHERITED;
};
SkAnimatorView::SkAnimatorView() : fAnimator(nullptr) {}
SkAnimatorView::~SkAnimatorView() {
delete fAnimator;
}
void SkAnimatorView::setURIBase(const char dir[]) {
fBaseURI.set(dir);
}
bool SkAnimatorView::decodeFile(const char path[]) {
std::unique_ptr<SkStream> is = SkStream::MakeFromFile(path);
return is && this->decodeStream(is.get());
}
bool SkAnimatorView::decodeMemory(const void* buffer, size_t size) {
SkMemoryStream is(buffer, size);
return this->decodeStream(&is);
}
static const SkDOMNode* find_nodeID(const SkDOM& dom,
const SkDOMNode* node, const char name[]) {
if (nullptr == node) {
node = dom.getRootNode();
}
do {
const char* idval = dom.findAttr(node, "id");
if (idval && !strcmp(idval, name)) {
return node;
}
const SkDOMNode* child = dom.getFirstChild(node);
if (child) {
const SkDOMNode* found = find_nodeID(dom, child, name);
if (found) {
return found;
}
}
} while ((node = dom.getNextSibling(node)) != nullptr);
return nullptr;
}
bool SkAnimatorView::decodeStream(SkStream* stream) {
delete fAnimator;
fAnimator = new SkAnimator;
fAnimator->setURIBase(fBaseURI.c_str());
#if 0
if (!fAnimator->decodeStream(stream)) {
delete fAnimator;
fAnimator = nullptr;
return false;
}
#else
size_t len = stream->getLength();
char* text = (char*)sk_malloc_throw(len);
stream->read(text, len);
SkDOM dom;
const SkDOM::Node* root = dom.build(text, len);
if (nullptr == root) {
return false;
}
if (!fAnimator->decodeDOM(dom, root)) {
delete fAnimator;
fAnimator = nullptr;
return false;
}
for (int i = 0; i <= 10; i++) {
SkString name("glyph");
name.appendS32(i);
const SkDOM::Node* node = find_nodeID(dom, nullptr, name.c_str());
SkASSERT(node);
SkRect r;
dom.findScalar(node, "left", &r.fLeft);
dom.findScalar(node, "top", &r.fTop);
dom.findScalar(node, "width", &r.fRight); r.fRight += r.fLeft;
dom.findScalar(node, "height", &r.fBottom); r.fBottom += r.fTop;
SkDebugf("--- %s [%g %g %g %g]\n", name.c_str(),
r.fLeft, r.fTop, r.fRight, r.fBottom);
}
#endif
return true;
}
#include "SkTime.h"
void SkAnimatorView::onDraw(SkCanvas* canvas) {
canvas->drawColor(SK_ColorWHITE);
if (fAnimator) {
fAnimator->draw(canvas, 0);
#if 0
canvas->save();
canvas->translate(120, 30);
canvas->scale(0.5, 0.5);
fAnimator->draw(canvas, 0);
canvas->restore();
canvas->save();
canvas->translate(190, 40);
canvas->scale(0.25, 0.25);
fAnimator->draw(canvas, 0);
canvas->restore();
this->inval(nullptr);
#endif
}
}
bool SkAnimatorView::onQuery(SkEvent* evt) {
if (SampleCode::TitleQ(*evt)) {
SampleCode::TitleR(evt, "Animator");
return true;
}
return this->INHERITED::onQuery(evt);
}
//////////////////////////////////////////////////////////////////////////////
static SkView* MyFactory() {
SkAnimatorView* av = new SkAnimatorView;
// av->decodeFile("/skimages/test.xml");
#if 0
av->setURIBase("/skia/trunk/animations/");
av->decodeFile("/skia/trunk/animations/checkbox.xml");
#else
av->setURIBase("/");
av->decodeFile("/testanim.txt");
#endif
return av;
}
static SkViewRegister reg(MyFactory);
|
