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
23using namespace android;
24
25class NinePatchPeeker : public SkImageDecoder::Peeker {
26private:
27    // the host lives longer than we do, so a raw ptr is safe
28    SkImageDecoder* mHost;
29public:
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