reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame^] | 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 | |