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| 1 /* libs/graphics/animator/SkDisplayXMLParser.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 "SkDisplayXMLParser.h" | |
| 19 #include "SkAnimateMaker.h" | |
| 20 #include "SkDisplayApply.h" | |
| 21 #include "SkUtils.h" | |
| 22 #ifdef SK_DEBUG | |
| 23 #include "SkTime.h" | |
| 24 #endif | |
| 25 | |
| 26 static char const* const gErrorStrings[] = { | |
| 27 "unknown error ", | |
| 28 "apply scopes itself", | |
| 29 "display tree too deep (circular reference?) ", | |
| 30 "element missing parent ", | |
| 31 "element type not allowed in parent ", | |
| 32 "error adding <data> to <post> ", | |
| 33 "error adding to <matrix> ", | |
| 34 "error adding to <paint> ", | |
| 35 "error adding to <path> ", | |
| 36 "error in attribute value ", | |
| 37 "error in script ", | |
| 38 "expected movie in sink attribute ", | |
| 39 "field not in target ", | |
| 40 "number of offsets in gradient must match number of colors", | |
| 41 "no offset in gradient may be greater than one", | |
| 42 "last offset in gradient must be one", | |
| 43 "offsets in gradient must be increasing", | |
| 44 "first offset in gradient must be zero", | |
| 45 "gradient attribute \"points\" must have length of four", | |
| 46 "in include ", | |
| 47 "in movie ", | |
| 48 "include name unknown or missing ", | |
| 49 "index out of range ", | |
| 50 "movie name unknown or missing ", | |
| 51 "no parent available to resolve sink attribute ", | |
| 52 "parent element can't contain ", | |
| 53 "saveLayer must specify a bounds", | |
| 54 "target id not found ", | |
| 55 "unexpected type " | |
| 56 }; | |
| 57 | |
| 58 SkDisplayXMLParserError::~SkDisplayXMLParserError() { | |
| 59 } | |
| 60 | |
| 61 void SkDisplayXMLParserError::getErrorString(SkString* str) const { | |
| 62 if (fCode > kUnknownError) | |
| 63 str->set(gErrorStrings[fCode - kUnknownError]); | |
| 64 else | |
| 65 str->reset(); | |
| 66 INHERITED::getErrorString(str); | |
| 67 } | |
| 68 | |
| 69 void SkDisplayXMLParserError::setInnerError(SkAnimateMaker* parent, const SkStri
ng& src) { | |
| 70 SkString inner; | |
| 71 getErrorString(&inner); | |
| 72 inner.prepend(": "); | |
| 73 inner.prependS32(getLineNumber()); | |
| 74 inner.prepend(", line "); | |
| 75 inner.prepend(src); | |
| 76 parent->setErrorNoun(inner); | |
| 77 } | |
| 78 | |
| 79 | |
| 80 SkDisplayXMLParser::SkDisplayXMLParser(SkAnimateMaker& maker) | |
| 81 : INHERITED(&maker.fError), fMaker(maker), fInInclude(maker.fInInclude), | |
| 82 fInSkia(maker.fInInclude), fCurrDisplayable(NULL) | |
| 83 { | |
| 84 } | |
| 85 | |
| 86 SkDisplayXMLParser::~SkDisplayXMLParser() { | |
| 87 if (fCurrDisplayable && fMaker.fChildren.find(fCurrDisplayable) < 0) | |
| 88 delete fCurrDisplayable; | |
| 89 for (Parent* parPtr = fParents.begin() + 1; parPtr < fParents.end(); parPtr+
+) { | |
| 90 SkDisplayable* displayable = parPtr->fDisplayable; | |
| 91 if (displayable == fCurrDisplayable) | |
| 92 continue; | |
| 93 SkASSERT(fMaker.fChildren.find(displayable) < 0); | |
| 94 if (fMaker.fHelpers.find(displayable) < 0) | |
| 95 delete displayable; | |
| 96 } | |
| 97 } | |
| 98 | |
| 99 | |
| 100 | |
| 101 bool SkDisplayXMLParser::onAddAttribute(const char name[], const char value[]) { | |
| 102 return onAddAttributeLen(name, value, strlen(value)); | |
| 103 } | |
| 104 | |
| 105 bool SkDisplayXMLParser::onAddAttributeLen(const char attrName[], const char att
rValue[], | |
| 106 size_t attrValueLen) | |
| 107 { | |
| 108 if (fCurrDisplayable == NULL) // this signals we should ignore attributes
for this element | |
| 109 return strncmp(attrName, "xmlns", sizeof("xmlns") - 1) != 0; | |
| 110 SkDisplayable* displayable = fCurrDisplayable; | |
| 111 SkDisplayTypes type = fCurrType; | |
| 112 | |
| 113 if (strcmp(attrName, "id") == 0) { | |
| 114 if (fMaker.find(attrValue, attrValueLen, NULL)) { | |
| 115 fError->setNoun(attrValue, attrValueLen); | |
| 116 fError->setCode(SkXMLParserError::kDuplicateIDs); | |
| 117 return true; | |
| 118 } | |
| 119 #ifdef SK_DEBUG | |
| 120 displayable->_id.set(attrValue, attrValueLen); | |
| 121 displayable->id = displayable->_id.c_str(); | |
| 122 #endif | |
| 123 fMaker.idsSet(attrValue, attrValueLen, displayable); | |
| 124 int parentIndex = fParents.count() - 1; | |
| 125 if (parentIndex > 0) { | |
| 126 SkDisplayable* parent = fParents[parentIndex - 1].fDisplayable; | |
| 127 parent->setChildHasID(); | |
| 128 } | |
| 129 return false; | |
| 130 } | |
| 131 const char* name = attrName; | |
| 132 const SkMemberInfo* info = SkDisplayType::GetMember(&fMaker, type, &name); | |
| 133 if (info == NULL) { | |
| 134 fError->setNoun(name); | |
| 135 fError->setCode(SkXMLParserError::kUnknownAttributeName); | |
| 136 return true; | |
| 137 } | |
| 138 if (info->setValue(fMaker, NULL, 0, info->getCount(), displayable, info->get
Type(), attrValue, | |
| 139 attrValueLen)) | |
| 140 return false; | |
| 141 if (fMaker.fError.hasError()) { | |
| 142 fError->setNoun(attrValue, attrValueLen); | |
| 143 return true; | |
| 144 } | |
| 145 SkDisplayable* ref = NULL; | |
| 146 if (fMaker.find(attrValue, attrValueLen, &ref) == false) { | |
| 147 ref = fMaker.createInstance(attrValue, attrValueLen); | |
| 148 if (ref == NULL) { | |
| 149 fError->setNoun(attrValue, attrValueLen); | |
| 150 fError->setCode(SkXMLParserError::kErrorInAttributeValue); | |
| 151 return true; | |
| 152 } else | |
| 153 fMaker.helperAdd(ref); | |
| 154 } | |
| 155 if (info->fType != SkType_MemberProperty) { | |
| 156 fError->setNoun(name); | |
| 157 fError->setCode(SkXMLParserError::kUnknownAttributeName); | |
| 158 return true; | |
| 159 } | |
| 160 SkScriptValue scriptValue; | |
| 161 scriptValue.fOperand.fDisplayable = ref; | |
| 162 scriptValue.fType = ref->getType(); | |
| 163 displayable->setProperty(info->propertyIndex(), scriptValue); | |
| 164 return false; | |
| 165 } | |
| 166 | |
| 167 bool SkDisplayXMLParser::onEndElement(const char elem[]) | |
| 168 { | |
| 169 int parentIndex = fParents.count() - 1; | |
| 170 if (parentIndex >= 0) { | |
| 171 Parent& container = fParents[parentIndex]; | |
| 172 SkDisplayable* displayable = container.fDisplayable; | |
| 173 fMaker.fEndDepth = parentIndex; | |
| 174 displayable->onEndElement(fMaker); | |
| 175 if (fMaker.fError.hasError()) | |
| 176 return true; | |
| 177 if (parentIndex > 0) { | |
| 178 SkDisplayable* parent = fParents[parentIndex - 1].fDisplayable; | |
| 179 bool result = parent->add(fMaker, displayable); | |
| 180 if (fMaker.hasError()) | |
| 181 return true; | |
| 182 if (result == false) { | |
| 183 int infoCount; | |
| 184 const SkMemberInfo* info = | |
| 185 SkDisplayType::GetMembers(&fMaker, fParents[parentIndex - 1]
.fType, &infoCount); | |
| 186 const SkMemberInfo* foundInfo; | |
| 187 if ((foundInfo = searchContainer(info, infoCount)) != NULL) { | |
| 188 parent->setReference(foundInfo, displayable); | |
| 189 // if (displayable->isHelper() == false) | |
| 190 fMaker.helperAdd(displayable); | |
| 191 } else { | |
| 192 fMaker.setErrorCode(SkDisplayXMLParserError::kElementTypeNot
AllowedInParent); | |
| 193 return true; | |
| 194 } | |
| 195 } | |
| 196 if (parent->childrenNeedDisposing()) | |
| 197 delete displayable; | |
| 198 } | |
| 199 fParents.remove(parentIndex); | |
| 200 } | |
| 201 fCurrDisplayable = NULL; | |
| 202 if (fInInclude == false && strcasecmp(elem, "screenplay") == 0) { | |
| 203 if (fMaker.fInMovie == false) { | |
| 204 fMaker.fEnableTime = fMaker.getAppTime(); | |
| 205 #if defined SK_DEBUG && defined SK_DEBUG_ANIMATION_TIMING | |
| 206 if (fMaker.fDebugTimeBase == (SkMSec) -1) | |
| 207 fMaker.fDebugTimeBase = fMaker.fEnableTime; | |
| 208 SkString debugOut; | |
| 209 SkMSec time = fMaker.getAppTime(); | |
| 210 debugOut.appendS32(time - fMaker.fDebugTimeBase); | |
| 211 debugOut.append(" onLoad enable="); | |
| 212 debugOut.appendS32(fMaker.fEnableTime - fMaker.fDebugTimeBase); | |
| 213 SkDebugf("%s\n", debugOut.c_str()); | |
| 214 #endif | |
| 215 fMaker.fEvents.doEvent(fMaker, SkDisplayEvent::kOnload, NULL); | |
| 216 if (fMaker.fError.hasError()) | |
| 217 return true; | |
| 218 fMaker.fEvents.removeEvent(SkDisplayEvent::kOnload, NULL); | |
| 219 | |
| 220 } | |
| 221 fInSkia = false; | |
| 222 } | |
| 223 return false; | |
| 224 } | |
| 225 | |
| 226 bool SkDisplayXMLParser::onStartElement(const char name[]) | |
| 227 { | |
| 228 return onStartElementLen(name, strlen(name)); | |
| 229 } | |
| 230 | |
| 231 bool SkDisplayXMLParser::onStartElementLen(const char name[], size_t len) { | |
| 232 fCurrDisplayable = NULL; // init so we'll ignore attributes if we exit early | |
| 233 | |
| 234 if (strncasecmp(name, "screenplay", len) == 0) { | |
| 235 fInSkia = true; | |
| 236 if (fInInclude == false) | |
| 237 fMaker.idsSet(name, len, &fMaker.fScreenplay); | |
| 238 return false; | |
| 239 } | |
| 240 if (fInSkia == false) | |
| 241 return false; | |
| 242 | |
| 243 SkDisplayable* displayable = fMaker.createInstance(name, len); | |
| 244 if (displayable == NULL) { | |
| 245 fError->setNoun(name, len); | |
| 246 fError->setCode(SkXMLParserError::kUnknownElement); | |
| 247 return true; | |
| 248 } | |
| 249 SkDisplayTypes type = displayable->getType(); | |
| 250 Parent record = { displayable, type }; | |
| 251 *fParents.append() = record; | |
| 252 if (fParents.count() == 1) | |
| 253 fMaker.childrenAdd(displayable); | |
| 254 else { | |
| 255 Parent* parent = fParents.end() - 2; | |
| 256 if (displayable->setParent(parent->fDisplayable)) { | |
| 257 fError->setNoun(name, len); | |
| 258 getError()->setCode(SkDisplayXMLParserError::kParentElementCantConta
in); | |
| 259 return true; | |
| 260 } | |
| 261 } | |
| 262 | |
| 263 // set these for subsequent calls to addAttribute() | |
| 264 fCurrDisplayable = displayable; | |
| 265 fCurrType = type; | |
| 266 return false; | |
| 267 } | |
| 268 | |
| 269 const SkMemberInfo* SkDisplayXMLParser::searchContainer(const SkMemberInfo* info
Base, | |
| 270 int infoCount) { | |
| 271 const SkMemberInfo* bestDisplayable = NULL; | |
| 272 const SkMemberInfo* lastResort = NULL; | |
| 273 for (int index = 0; index < infoCount; index++) { | |
| 274 const SkMemberInfo* info = &infoBase[index]; | |
| 275 if (info->fType == SkType_BaseClassInfo) { | |
| 276 const SkMemberInfo* inherited = info->getInherited(); | |
| 277 const SkMemberInfo* result = searchContainer(inherited, info->fCount
); | |
| 278 if (result != NULL) | |
| 279 return result; | |
| 280 continue; | |
| 281 } | |
| 282 Parent* container = fParents.end() - 1; | |
| 283 SkDisplayTypes type = (SkDisplayTypes) info->fType; | |
| 284 if (type == SkType_MemberProperty) | |
| 285 type = info->propertyType(); | |
| 286 SkDisplayTypes containerType = container->fType; | |
| 287 if (type == containerType && (type == SkType_Rect || type == SkType_Poly
gon || | |
| 288 type == SkType_Array || type == SkType_Int || type == SkType_Bitmap)
) | |
| 289 goto rectNext; | |
| 290 while (type != containerType) { | |
| 291 if (containerType == SkType_Displayable) | |
| 292 goto next; | |
| 293 containerType = SkDisplayType::GetParent(&fMaker, containerType); | |
| 294 if (containerType == SkType_Unknown) | |
| 295 goto next; | |
| 296 } | |
| 297 return info; | |
| 298 next: | |
| 299 if (type == SkType_Drawable || type == SkType_Displayable && | |
| 300 container->fDisplayable->isDrawable()) { | |
| 301 rectNext: | |
| 302 if (fParents.count() > 1) { | |
| 303 Parent* parent = fParents.end() - 2; | |
| 304 if (info == parent->fDisplayable->preferredChild(type)) | |
| 305 bestDisplayable = info; | |
| 306 else | |
| 307 lastResort = info; | |
| 308 } | |
| 309 } | |
| 310 } | |
| 311 if (bestDisplayable) | |
| 312 return bestDisplayable; | |
| 313 if (lastResort) | |
| 314 return lastResort; | |
| 315 return NULL; | |
| 316 } | |
| 317 | |
| 318 | |
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Chromium Code Reviews
Issue 113827:
Remove the remainder of the skia source code from the Chromium repo.... (Closed)
Base URL: svn://chrome-svn/chrome/trunk/src/