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1 /* libs/graphics/animator/SkDrawPath.cpp | |
2 ** | |
3 ** Copyright 2006, The Android Open Source Project | |
4 ** | |
5 ** Licensed under the Apache License, Version 2.0 (the "License"); | |
6 ** you may not use this file except in compliance with the License. | |
7 ** You may obtain a copy of the License at | |
8 ** | |
9 ** http://www.apache.org/licenses/LICENSE-2.0 | |
10 ** | |
11 ** Unless required by applicable law or agreed to in writing, software | |
12 ** distributed under the License is distributed on an "AS IS" BASIS, | |
13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
14 ** See the License for the specific language governing permissions and | |
15 ** limitations under the License. | |
16 */ | |
17 | |
18 #include "SkDrawPath.h" | |
19 #include "SkAnimateMaker.h" | |
20 #include "SkCanvas.h" | |
21 #include "SkMath.h" | |
22 #include "SkMatrixParts.h" | |
23 #include "SkPaint.h" | |
24 #include "SkPathParts.h" | |
25 | |
26 enum SkPath_Properties { | |
27 SK_PROPERTY(fillType), | |
28 SK_PROPERTY(length) | |
29 }; | |
30 | |
31 #if SK_USE_CONDENSED_INFO == 0 | |
32 | |
33 const SkMemberInfo SkDrawPath::fInfo[] = { | |
34 SK_MEMBER(d, String), | |
35 SK_MEMBER_PROPERTY(fillType, FillType), | |
36 SK_MEMBER_PROPERTY(length, Float) | |
37 }; | |
38 | |
39 #endif | |
40 | |
41 DEFINE_GET_MEMBER(SkDrawPath); | |
42 | |
43 SkDrawPath::SkDrawPath() | |
44 { | |
45 fParent = NULL; | |
46 fLength = SK_ScalarNaN; | |
47 fChildHasID = false; | |
48 fDirty = false; | |
49 } | |
50 | |
51 SkDrawPath::~SkDrawPath() { | |
52 for (SkPathPart** part = fParts.begin(); part < fParts.end(); part++) | |
53 delete *part; | |
54 } | |
55 | |
56 bool SkDrawPath::add(SkAnimateMaker& maker, SkDisplayable* child) { | |
57 SkASSERT(child && child->isPathPart()); | |
58 SkPathPart* part = (SkPathPart*) child; | |
59 *fParts.append() = part; | |
60 if (part->add()) | |
61 maker.setErrorCode(SkDisplayXMLParserError::kErrorAddingToPath); | |
62 fDirty = false; | |
63 return true; | |
64 } | |
65 | |
66 bool SkDrawPath::childrenNeedDisposing() const { | |
67 return false; | |
68 } | |
69 | |
70 void SkDrawPath::dirty() { | |
71 fDirty = true; | |
72 fLength = SK_ScalarNaN; | |
73 if (fParent) | |
74 fParent->dirty(); | |
75 } | |
76 | |
77 bool SkDrawPath::draw(SkAnimateMaker& maker) { | |
78 SkPath& path = getPath(); | |
79 SkBoundableAuto boundable(this, maker); | |
80 maker.fCanvas->drawPath(path, *maker.fPaint); | |
81 return false; | |
82 } | |
83 | |
84 SkDisplayable* SkDrawPath::getParent() const { | |
85 return fParent; | |
86 } | |
87 | |
88 #ifdef SK_DUMP_ENABLED | |
89 void SkDrawPath::dump(SkAnimateMaker* maker) { | |
90 dumpBase(maker); | |
91 dumpAttrs(maker); | |
92 bool closedYet = false; | |
93 SkDisplayList::fIndent += 4; | |
94 for(SkPathPart** part = fParts.begin(); part < fParts.end(); part++) { | |
95 if (closedYet == false) { | |
96 SkDebugf(">\n"); | |
97 closedYet = true; | |
98 } | |
99 (*part)->dump(maker); | |
100 } | |
101 SkDisplayList::fIndent -= 4; | |
102 if (closedYet) | |
103 dumpEnd(maker); | |
104 else | |
105 SkDebugf("/>\n"); | |
106 } | |
107 #endif | |
108 | |
109 SkPath& SkDrawPath::getPath() { | |
110 if (fDirty == false) | |
111 return fPath; | |
112 if (d.size() > 0) | |
113 { | |
114 parseSVG(); | |
115 d.reset(); | |
116 } | |
117 else | |
118 { | |
119 fPath.reset(); | |
120 for (SkPathPart** part = fParts.begin(); part < fParts.end(); part++) | |
121 (*part)->add(); | |
122 } | |
123 fDirty = false; | |
124 return fPath; | |
125 } | |
126 | |
127 void SkDrawPath::onEndElement(SkAnimateMaker& ) { | |
128 if (d.size() > 0) { | |
129 parseSVG(); | |
130 d.reset(); | |
131 fDirty = false; | |
132 return; | |
133 } | |
134 if (fChildHasID == false) { | |
135 for (SkPathPart** part = fParts.begin(); part < fParts.end(); part++) | |
136 delete *part; | |
137 fParts.reset(); | |
138 fDirty = false; | |
139 } | |
140 } | |
141 | |
142 bool SkDrawPath::getProperty(int index, SkScriptValue* value) const { | |
143 switch (index) { | |
144 case SK_PROPERTY(length): | |
145 if (SkScalarIsNaN(fLength)) { | |
146 const SkPath& path = ((SkDrawPath*) this)->getPath(); | |
147 SkPathMeasure pathMeasure(path, false); | |
148 fLength = pathMeasure.getLength(); | |
149 } | |
150 value->fType = SkType_Float; | |
151 value->fOperand.fScalar = fLength; | |
152 break; | |
153 case SK_PROPERTY(fillType): | |
154 value->fType = SkType_FillType; | |
155 value->fOperand.fS32 = (int) fPath.getFillType(); | |
156 break; | |
157 default: | |
158 SkASSERT(0); | |
159 return false; | |
160 } | |
161 return true; | |
162 } | |
163 | |
164 void SkDrawPath::setChildHasID() { | |
165 fChildHasID = true; | |
166 } | |
167 | |
168 bool SkDrawPath::setParent(SkDisplayable* parent) { | |
169 fParent = parent; | |
170 return false; | |
171 } | |
172 | |
173 bool SkDrawPath::setProperty(int index, SkScriptValue& value) | |
174 { | |
175 switch (index) { | |
176 case SK_PROPERTY(fillType): | |
177 SkASSERT(value.fType == SkType_FillType); | |
178 SkASSERT(value.fOperand.fS32 >= SkPath::kWinding_FillType && | |
179 value.fOperand.fS32 <= SkPath::kEvenOdd_FillType); | |
180 fPath.setFillType((SkPath::FillType) value.fOperand.fS32); | |
181 break; | |
182 default: | |
183 SkASSERT(0); | |
184 return false; | |
185 } | |
186 return true; | |
187 } | |
188 | |
189 #if SK_USE_CONDENSED_INFO == 0 | |
190 | |
191 const SkMemberInfo SkPolyline::fInfo[] = { | |
192 SK_MEMBER_ARRAY(points, Float) | |
193 }; | |
194 | |
195 #endif | |
196 | |
197 DEFINE_GET_MEMBER(SkPolyline); | |
198 | |
199 bool SkPolyline::add(SkAnimateMaker& , SkDisplayable*) const { | |
200 return false; | |
201 } | |
202 | |
203 void SkPolyline::onEndElement(SkAnimateMaker& maker) { | |
204 INHERITED::onEndElement(maker); | |
205 if (points.count() <= 0) | |
206 return; | |
207 fPath.reset(); | |
208 fPath.moveTo(points[0], points[1]); | |
209 int count = points.count(); | |
210 for (int index = 2; index < count; index += 2) | |
211 fPath.lineTo(points[index], points[index+1]); | |
212 } | |
213 | |
214 | |
215 #if SK_USE_CONDENSED_INFO == 0 | |
216 | |
217 const SkMemberInfo SkPolygon::fInfo[] = { | |
218 SK_MEMBER_INHERITED | |
219 }; | |
220 | |
221 #endif | |
222 | |
223 DEFINE_GET_MEMBER(SkPolygon); | |
224 | |
225 void SkPolygon::onEndElement(SkAnimateMaker& maker) { | |
226 INHERITED::onEndElement(maker); | |
227 fPath.close(); | |
228 } | |
229 | |
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