Home | History | Annotate | Download | only in graphics
      1 /*
      2  * Copyright (C) 2011 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef NinePatchPeeker_h
     18 #define NinePatchPeeker_h
     19 
     20 #include "SkImageDecoder.h"
     21 #include <androidfw/ResourceTypes.h>
     22 
     23 using namespace android;
     24 
     25 class NinePatchPeeker : public SkImageDecoder::Peeker {
     26 private:
     27     // the host lives longer than we do, so a raw ptr is safe
     28     SkImageDecoder* mHost;
     29 public:
     30     NinePatchPeeker(SkImageDecoder* host)
     31             : mHost(host)
     32             , mPatch(NULL)
     33             , mPatchSize(0)
     34             , mHasInsets(false)
     35             , mOutlineRadius(0)
     36             , mOutlineAlpha(0) {
     37         memset(mOpticalInsets, 0, 4 * sizeof(int32_t));
     38         memset(mOutlineInsets, 0, 4 * sizeof(int32_t));
     39     }
     40 
     41     ~NinePatchPeeker() {
     42         free(mPatch);
     43     }
     44 
     45     virtual bool peek(const char tag[], const void* data, size_t length);
     46 
     47     Res_png_9patch* mPatch;
     48     size_t mPatchSize;
     49     bool mHasInsets;
     50     int32_t mOpticalInsets[4];
     51     int32_t mOutlineInsets[4];
     52     float mOutlineRadius;
     53     uint8_t mOutlineAlpha;
     54 };
     55 
     56 #endif // NinePatchPeeker_h
     57