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      1 /* libs/graphics/animator/SkAnimateField.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 "SkAnimate.h"
     19 #include "SkAnimateMaker.h"
     20 #include "SkDrawable.h"
     21 #include "SkParse.h"
     22 
     23 #if SK_USE_CONDENSED_INFO == 0
     24 
     25 const SkMemberInfo SkAnimate::fInfo[] = {
     26     SK_MEMBER_INHERITED
     27 };
     28 
     29 #endif
     30 
     31 DEFINE_GET_MEMBER(SkAnimate);
     32 
     33 SkAnimate::SkAnimate() : fComponents(0) {
     34 }
     35 
     36 SkAnimate::~SkAnimate() {
     37 }
     38 
     39 int SkAnimate::components() {
     40     return fComponents;
     41 }
     42 
     43 #ifdef SK_DUMP_ENABLED
     44 void SkAnimate::dump(SkAnimateMaker* maker) {
     45     INHERITED::dump(maker); //from animateBase
     46     //SkSet inherits from this class
     47     if (getType() != SkType_Set) {
     48         if (fMirror)
     49             SkDebugf("mirror=\"true\" ");
     50         if (fReset)
     51             SkDebugf("reset=\"true\" ");
     52 #ifdef SK_CAN_USE_FLOAT
     53         SkDebugf("dur=\"%g\" ", SkScalarToFloat(SkScalarDiv(dur,1000)));
     54         if (repeat != SK_Scalar1)
     55             SkDebugf("repeat=\"%g\" ", SkScalarToFloat(repeat));
     56 #else
     57         SkDebugf("dur=\"%x\" ", SkScalarDiv(dur,1000));
     58         if (repeat != SK_Scalar1)
     59             SkDebugf("repeat=\"%x\" ", repeat);
     60 #endif
     61         //if (fHasValues)
     62         //    SkDebugf("values=\"%s\" ", values);
     63         if (blend.count() != 1 || blend[0] != SK_Scalar1) {
     64             SkDebugf("blend=\"[");
     65             bool firstElem = true;
     66             for (int i = 0; i < blend.count(); i++) {
     67                 if (!firstElem)
     68                     SkDebugf(",");
     69                 firstElem = false;
     70 #ifdef SK_CAN_USE_FLOAT
     71                 SkDebugf("%g", SkScalarToFloat(blend[i]));
     72 #else
     73                 SkDebugf("%x", blend[i]);
     74 #endif
     75             }
     76             SkDebugf("]\" ");
     77         }
     78         SkDebugf("/>\n");//i assume that if it IS, we will do it separately
     79     }
     80 }
     81 #endif
     82 
     83 bool SkAnimate::resolveCommon(SkAnimateMaker& maker) {
     84     if (fTarget == NULL) // if NULL, recall onEndElement after apply closes and sets target to scope
     85         return false;
     86     INHERITED::onEndElement(maker);
     87     return maker.hasError() == false;
     88 }
     89 
     90 void SkAnimate::onEndElement(SkAnimateMaker& maker) {
     91     bool resolved = resolveCommon(maker);
     92     if (resolved && fFieldInfo == NULL) {
     93         maker.setErrorNoun(field);
     94         maker.setErrorCode(SkDisplayXMLParserError::kFieldNotInTarget);
     95     }
     96     if (resolved == false || fFieldInfo == NULL)
     97         return;
     98     SkDisplayTypes outType = fFieldInfo->getType();
     99     if (fHasValues) {
    100         SkASSERT(to.size() > 0);
    101         fFieldInfo->setValue(maker, &fValues, 0, 0, NULL, outType, to);
    102         SkASSERT(0);
    103         // !!! this needs to set fComponents
    104         return;
    105     }
    106     fComponents = fFieldInfo->getCount();
    107     if (fFieldInfo->fType == SkType_Array) {
    108         SkTypedArray* array = (SkTypedArray*) fFieldInfo->memberData(fTarget);
    109         int count = array->count();
    110         if (count > 0)
    111             fComponents = count;
    112     }
    113     if (outType == SkType_ARGB) {
    114         fComponents <<= 2;  // four color components
    115         outType = SkType_Float;
    116     }
    117     fValues.setType(outType);
    118     if (formula.size() > 0){
    119         fComponents = 1;
    120         from.set("0");
    121         to.set("dur");
    122         outType = SkType_MSec;
    123     }
    124     int max = fComponents * 2;
    125     fValues.setCount(max);
    126     memset(fValues.begin(), 0, max * sizeof(fValues.begin()[0]));
    127     fFieldInfo->setValue(maker, &fValues, fFieldOffset, max, this, outType, from);
    128     fFieldInfo->setValue(maker, &fValues, fComponents + fFieldOffset, max, this, outType, to);
    129 }
    130 
    131