reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame^] | 1 | /* libs/graphics/animator/SkDrawMatrix.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 "SkDrawMatrix.h" |
| 19 | #include "SkAnimateMaker.h" |
| 20 | #include "SkCanvas.h" |
| 21 | #include "SkPaint.h" |
| 22 | #include "SkParse.h" |
| 23 | #include "SkMatrixParts.h" |
| 24 | #include "SkScript.h" |
| 25 | #include "SkTypedArray.h" |
| 26 | |
| 27 | enum SkDrawMatrix_Properties { |
| 28 | SK_PROPERTY(perspectX), |
| 29 | SK_PROPERTY(perspectY), |
| 30 | SK_PROPERTY(rotate), |
| 31 | SK_PROPERTY(scale), |
| 32 | SK_PROPERTY(scaleX), |
| 33 | SK_PROPERTY(scaleY), |
| 34 | SK_PROPERTY(skewX), |
| 35 | SK_PROPERTY(skewY), |
| 36 | SK_PROPERTY(translate), |
| 37 | SK_PROPERTY(translateX), |
| 38 | SK_PROPERTY(translateY) |
| 39 | }; |
| 40 | |
| 41 | #if SK_USE_CONDENSED_INFO == 0 |
| 42 | |
| 43 | const SkMemberInfo SkDrawMatrix::fInfo[] = { |
| 44 | SK_MEMBER_ARRAY(matrix, Float), |
| 45 | SK_MEMBER_PROPERTY(perspectX, Float), |
| 46 | SK_MEMBER_PROPERTY(perspectY, Float), |
| 47 | SK_MEMBER_PROPERTY(rotate, Float), |
| 48 | SK_MEMBER_PROPERTY(scale, Float), |
| 49 | SK_MEMBER_PROPERTY(scaleX, Float), |
| 50 | SK_MEMBER_PROPERTY(scaleY, Float), |
| 51 | SK_MEMBER_PROPERTY(skewX, Float), |
| 52 | SK_MEMBER_PROPERTY(skewY, Float), |
| 53 | SK_MEMBER_PROPERTY(translate, Point), |
| 54 | SK_MEMBER_PROPERTY(translateX, Float), |
| 55 | SK_MEMBER_PROPERTY(translateY, Float) |
| 56 | }; |
| 57 | |
| 58 | #endif |
| 59 | |
| 60 | DEFINE_GET_MEMBER(SkDrawMatrix); |
| 61 | |
| 62 | SkDrawMatrix::SkDrawMatrix() : fChildHasID(false), fDirty(false) { |
| 63 | fConcat.reset(); |
| 64 | fMatrix.reset(); |
| 65 | } |
| 66 | |
| 67 | SkDrawMatrix::~SkDrawMatrix() { |
| 68 | for (SkMatrixPart** part = fParts.begin(); part < fParts.end(); part++) |
| 69 | delete *part; |
| 70 | } |
| 71 | |
| 72 | bool SkDrawMatrix::add(SkAnimateMaker& maker, SkDisplayable* child) { |
| 73 | SkASSERT(child && child->isMatrixPart()); |
| 74 | SkMatrixPart* part = (SkMatrixPart*) child; |
| 75 | *fParts.append() = part; |
| 76 | if (part->add()) |
| 77 | maker.setErrorCode(SkDisplayXMLParserError::kErrorAddingToMatrix); |
| 78 | return true; |
| 79 | } |
| 80 | |
| 81 | bool SkDrawMatrix::childrenNeedDisposing() const { |
| 82 | return false; |
| 83 | } |
| 84 | |
| 85 | SkDisplayable* SkDrawMatrix::deepCopy(SkAnimateMaker* maker) { |
| 86 | SkDrawMatrix* copy = (SkDrawMatrix*) |
| 87 | SkDisplayType::CreateInstance(maker, SkType_Matrix); |
| 88 | SkASSERT(fParts.count() == 0); |
| 89 | copy->fMatrix = fMatrix; |
| 90 | copy->fConcat = fConcat; |
| 91 | return copy; |
| 92 | } |
| 93 | |
| 94 | void SkDrawMatrix::dirty() { |
| 95 | fDirty = true; |
| 96 | } |
| 97 | |
| 98 | bool SkDrawMatrix::draw(SkAnimateMaker& maker) { |
| 99 | SkMatrix& concat = getMatrix(); |
| 100 | maker.fCanvas->concat(concat); |
| 101 | return false; |
| 102 | } |
| 103 | |
| 104 | #ifdef SK_DUMP_ENABLED |
| 105 | void SkDrawMatrix::dump(SkAnimateMaker* maker) { |
| 106 | dumpBase(maker); |
| 107 | if (fMatrix.isIdentity()) { |
| 108 | SkDebugf("matrix=\"identity\"/>\n"); |
| 109 | return; |
| 110 | } |
| 111 | SkScalar result; |
| 112 | result = fMatrix[SkMatrix::kMScaleX]; |
| 113 | if (result != SK_Scalar1) |
| 114 | SkDebugf("sx=\"%g\" ", SkScalarToFloat(result)); |
| 115 | result = fMatrix.getScaleY(); |
| 116 | if (result != SK_Scalar1) |
| 117 | SkDebugf("sy=\"%g\" ", SkScalarToFloat(result)); |
| 118 | result = fMatrix.getSkewX(); |
| 119 | if (result) |
| 120 | SkDebugf("skew-x=\"%g\" ", SkScalarToFloat(result)); |
| 121 | result = fMatrix.getSkewY(); |
| 122 | if (result) |
| 123 | SkDebugf("skew-y=\"%g\" ", SkScalarToFloat(result)); |
| 124 | result = fMatrix.getTranslateX(); |
| 125 | if (result) |
| 126 | SkDebugf("tx=\"%g\" ", SkScalarToFloat(result)); |
| 127 | result = fMatrix.getTranslateY(); |
| 128 | if (result) |
| 129 | SkDebugf("ty=\"%g\" ", SkScalarToFloat(result)); |
| 130 | result = fMatrix.getPerspX(); |
| 131 | if (result) |
| 132 | SkDebugf("perspect-x=\"%g\" ", SkScalarToFloat(result)); |
| 133 | result = fMatrix.getPerspY(); |
| 134 | if (result) |
| 135 | SkDebugf("perspect-y=\"%g\" ", SkScalarToFloat(result)); |
| 136 | SkDebugf("/>\n"); |
| 137 | } |
| 138 | #endif |
| 139 | |
| 140 | SkMatrix& SkDrawMatrix::getMatrix() { |
| 141 | if (fDirty == false) |
| 142 | return fConcat; |
| 143 | fMatrix.reset(); |
| 144 | for (SkMatrixPart** part = fParts.begin(); part < fParts.end(); part++) { |
| 145 | (*part)->add(); |
| 146 | fConcat = fMatrix; |
| 147 | } |
| 148 | fDirty = false; |
| 149 | return fConcat; |
| 150 | } |
| 151 | |
| 152 | bool SkDrawMatrix::getProperty(int index, SkScriptValue* value) const { |
| 153 | value->fType = SkType_Float; |
| 154 | SkScalar result; |
| 155 | switch (index) { |
| 156 | case SK_PROPERTY(perspectX): |
| 157 | result = fMatrix.getPerspX(); |
| 158 | break; |
| 159 | case SK_PROPERTY(perspectY): |
| 160 | result = fMatrix.getPerspY(); |
| 161 | break; |
| 162 | case SK_PROPERTY(scaleX): |
| 163 | result = fMatrix.getScaleX(); |
| 164 | break; |
| 165 | case SK_PROPERTY(scaleY): |
| 166 | result = fMatrix.getScaleY(); |
| 167 | break; |
| 168 | case SK_PROPERTY(skewX): |
| 169 | result = fMatrix.getSkewX(); |
| 170 | break; |
| 171 | case SK_PROPERTY(skewY): |
| 172 | result = fMatrix.getSkewY(); |
| 173 | break; |
| 174 | case SK_PROPERTY(translateX): |
| 175 | result = fMatrix.getTranslateX(); |
| 176 | break; |
| 177 | case SK_PROPERTY(translateY): |
| 178 | result = fMatrix.getTranslateY(); |
| 179 | break; |
| 180 | default: |
| 181 | // SkASSERT(0); |
| 182 | return false; |
| 183 | } |
| 184 | value->fOperand.fScalar = result; |
| 185 | return true; |
| 186 | } |
| 187 | |
| 188 | void SkDrawMatrix::initialize() { |
| 189 | fConcat = fMatrix; |
| 190 | } |
| 191 | |
| 192 | void SkDrawMatrix::onEndElement(SkAnimateMaker& ) { |
| 193 | if (matrix.count() > 0) { |
| 194 | SkScalar* vals = matrix.begin(); |
| 195 | fMatrix.setScaleX(vals[0]); |
| 196 | fMatrix.setSkewX(vals[1]); |
| 197 | fMatrix.setTranslateX(vals[2]); |
| 198 | fMatrix.setSkewY(vals[3]); |
| 199 | fMatrix.setScaleY(vals[4]); |
| 200 | fMatrix.setTranslateY(vals[5]); |
| 201 | #ifdef SK_SCALAR_IS_FIXED |
| 202 | fMatrix.setPerspX(SkFixedToFract(vals[6])); |
| 203 | fMatrix.setPerspY(SkFixedToFract(vals[7])); |
| 204 | #else |
| 205 | fMatrix.setPerspX(vals[6]); |
| 206 | fMatrix.setPerspY(vals[7]); |
| 207 | #endif |
| 208 | // fMatrix.setPerspW(vals[8]); |
| 209 | goto setConcat; |
| 210 | } |
| 211 | if (fChildHasID == false) { |
| 212 | { |
| 213 | for (SkMatrixPart** part = fParts.begin(); part < fParts.end(); part++) |
| 214 | delete *part; |
| 215 | } |
| 216 | fParts.reset(); |
| 217 | setConcat: |
| 218 | fConcat = fMatrix; |
| 219 | fDirty = false; |
| 220 | } |
| 221 | } |
| 222 | |
| 223 | void SkDrawMatrix::setChildHasID() { |
| 224 | fChildHasID = true; |
| 225 | } |
| 226 | |
| 227 | bool SkDrawMatrix::setProperty(int index, SkScriptValue& scriptValue) { |
| 228 | SkScalar number = scriptValue.fOperand.fScalar; |
| 229 | switch (index) { |
| 230 | case SK_PROPERTY(translate): |
| 231 | // SkScalar xy[2]; |
| 232 | SkASSERT(scriptValue.fType == SkType_Array); |
| 233 | SkASSERT(scriptValue.fOperand.fArray->getType() == SkType_Float); |
| 234 | SkASSERT(scriptValue.fOperand.fArray->count() == 2); |
| 235 | // SkParse::FindScalars(scriptValue.fOperand.fString->c_str(), xy, 2); |
| 236 | fMatrix.setTranslateX((*scriptValue.fOperand.fArray)[0].fScalar); |
| 237 | fMatrix.setTranslateY((*scriptValue.fOperand.fArray)[1].fScalar); |
| 238 | return true; |
| 239 | case SK_PROPERTY(perspectX): |
| 240 | #ifdef SK_SCALAR_IS_FIXED |
| 241 | fMatrix.setPerspX(SkFixedToFract(number)); |
| 242 | #else |
| 243 | fMatrix.setPerspX(number); |
| 244 | #endif |
| 245 | break; |
| 246 | case SK_PROPERTY(perspectY): |
| 247 | #ifdef SK_SCALAR_IS_FIXED |
| 248 | fMatrix.setPerspY(SkFixedToFract(number)); |
| 249 | #else |
| 250 | fMatrix.setPerspY(number); |
| 251 | #endif |
| 252 | break; |
| 253 | case SK_PROPERTY(rotate): { |
| 254 | SkMatrix temp; |
| 255 | temp.setRotate(number, 0, 0); |
| 256 | fMatrix.setScaleX(temp.getScaleX()); |
| 257 | fMatrix.setScaleY(temp.getScaleY()); |
| 258 | fMatrix.setSkewX(temp.getSkewX()); |
| 259 | fMatrix.setSkewY(temp.getSkewY()); |
| 260 | } break; |
| 261 | case SK_PROPERTY(scale): |
| 262 | fMatrix.setScaleX(number); |
| 263 | fMatrix.setScaleY(number); |
| 264 | break; |
| 265 | case SK_PROPERTY(scaleX): |
| 266 | fMatrix.setScaleX(number); |
| 267 | break; |
| 268 | case SK_PROPERTY(scaleY): |
| 269 | fMatrix.setScaleY(number); |
| 270 | break; |
| 271 | case SK_PROPERTY(skewX): |
| 272 | fMatrix.setSkewX(number); |
| 273 | break; |
| 274 | case SK_PROPERTY(skewY): |
| 275 | fMatrix.setSkewY(number); |
| 276 | break; |
| 277 | case SK_PROPERTY(translateX): |
| 278 | fMatrix.setTranslateX(number); |
| 279 | break; |
| 280 | case SK_PROPERTY(translateY): |
| 281 | fMatrix.setTranslateY(number); |
| 282 | break; |
| 283 | default: |
| 284 | SkASSERT(0); |
| 285 | return false; |
| 286 | } |
| 287 | fConcat = fMatrix; |
| 288 | return true; |
| 289 | } |
| 290 | |