aboutsummaryrefslogtreecommitdiffhomepage
path: root/src/animator/SkDrawPath.cpp
blob: 10e92035e47dca5ee192c83399bd0a92cee5b074 (plain)
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

/*
 * Copyright 2006 The Android Open Source Project
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */


#include "SkDrawPath.h"
#include "SkAnimateMaker.h"
#include "SkCanvas.h"
#include "SkMath.h"
#include "SkMatrixParts.h"
#include "SkPaint.h"
#include "SkPathParts.h"

enum SkPath_Properties {
    SK_PROPERTY(fillType),
    SK_PROPERTY(length)
};

#if SK_USE_CONDENSED_INFO == 0

const SkMemberInfo SkDrawPath::fInfo[] = {
    SK_MEMBER(d, String),
    SK_MEMBER_PROPERTY(fillType, FillType),
    SK_MEMBER_PROPERTY(length, Float)
};

#endif

DEFINE_GET_MEMBER(SkDrawPath);

SkDrawPath::SkDrawPath()
{
    fParent = NULL;
    fLength = SK_ScalarNaN;
    fChildHasID = false;
    fDirty = false;
}

SkDrawPath::~SkDrawPath() {
    for (SkPathPart** part = fParts.begin(); part < fParts.end();  part++)
        delete *part;
}

bool SkDrawPath::add(SkAnimateMaker& maker, SkDisplayable* child) {
    SkASSERT(child && child->isPathPart());
    SkPathPart* part = (SkPathPart*) child;
    *fParts.append() = part;
    if (part->add())
        maker.setErrorCode(SkDisplayXMLParserError::kErrorAddingToPath); 
    fDirty = false;
    return true;
}

bool SkDrawPath::childrenNeedDisposing() const { 
    return false; 
}

void SkDrawPath::dirty() { 
    fDirty = true; 
    fLength = SK_ScalarNaN;
    if (fParent)
        fParent->dirty();
}

bool SkDrawPath::draw(SkAnimateMaker& maker) {
    SkPath& path = getPath();
    SkBoundableAuto boundable(this, maker);
    maker.fCanvas->drawPath(path, *maker.fPaint);
    return false;
}

SkDisplayable* SkDrawPath::getParent() const {
    return fParent;
}

#ifdef SK_DUMP_ENABLED
void SkDrawPath::dump(SkAnimateMaker* maker) {
    dumpBase(maker);
    dumpAttrs(maker);
    bool closedYet = false;
    SkDisplayList::fIndent += 4;
    for(SkPathPart** part = fParts.begin(); part < fParts.end(); part++) {
        if (closedYet == false) {
            SkDebugf(">\n");
            closedYet = true;
        }
        (*part)->dump(maker);
    }
    SkDisplayList::fIndent -= 4;
    if (closedYet)
        dumpEnd(maker);
    else
        SkDebugf("/>\n");
}
#endif

SkPath& SkDrawPath::getPath() {
    if (fDirty == false)
        return fPath;
    if (d.size() > 0)
    {
        parseSVG();
        d.reset();
    }
    else
    {
        fPath.reset();
        for (SkPathPart** part = fParts.begin(); part < fParts.end();  part++)
            (*part)->add();
    }
    fDirty = false;
    return fPath;
}
    
void SkDrawPath::onEndElement(SkAnimateMaker& ) {
    if (d.size() > 0) {
        parseSVG();
        d.reset();
        fDirty = false;
        return;
    }
    if (fChildHasID == false) {
        for (SkPathPart** part = fParts.begin(); part < fParts.end();  part++)
            delete *part;
        fParts.reset();
        fDirty = false;
    }
}

bool SkDrawPath::getProperty(int index, SkScriptValue* value) const {
    switch (index) {
        case SK_PROPERTY(length):
            if (SkScalarIsNaN(fLength)) {
                const SkPath& path = ((SkDrawPath*) this)->getPath();
                SkPathMeasure pathMeasure(path, false);
                fLength = pathMeasure.getLength();
            }
            value->fType = SkType_Float;
            value->fOperand.fScalar = fLength;
            break;
        case SK_PROPERTY(fillType):
            value->fType = SkType_FillType;
            value->fOperand.fS32 = (int) fPath.getFillType();
            break;
        default:
            SkASSERT(0);
            return false;
    }
    return true;
}

void SkDrawPath::setChildHasID() { 
    fChildHasID = true; 
}

bool SkDrawPath::setParent(SkDisplayable* parent) {
    fParent = parent;
    return false;
}

bool SkDrawPath::setProperty(int index, SkScriptValue& value)
{
    switch (index) {
        case SK_PROPERTY(fillType):
            SkASSERT(value.fType == SkType_FillType);
            SkASSERT(value.fOperand.fS32 >= SkPath::kWinding_FillType &&
                value.fOperand.fS32 <= SkPath::kEvenOdd_FillType);
            fPath.setFillType((SkPath::FillType) value.fOperand.fS32);
            break;
        default:
            SkASSERT(0);
            return false;
    }
    return true;
}

#if SK_USE_CONDENSED_INFO == 0

const SkMemberInfo SkPolyline::fInfo[] = {
    SK_MEMBER_ARRAY(points, Float)
};

#endif

DEFINE_GET_MEMBER(SkPolyline);

bool SkPolyline::add(SkAnimateMaker& , SkDisplayable*) const {
    return false; 
}

void SkPolyline::onEndElement(SkAnimateMaker& maker) {
    INHERITED::onEndElement(maker);
    if (points.count() <= 0)
        return;
    fPath.reset();
    fPath.moveTo(points[0], points[1]);
    int count = points.count();
    for (int index = 2; index < count; index += 2)
        fPath.lineTo(points[index], points[index+1]);
}


#if SK_USE_CONDENSED_INFO == 0

const SkMemberInfo SkPolygon::fInfo[] = {
    SK_MEMBER_INHERITED
};

#endif

DEFINE_GET_MEMBER(SkPolygon);

void SkPolygon::onEndElement(SkAnimateMaker& maker) {
    INHERITED::onEndElement(maker);
    fPath.close();
}