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 _ANDROID_GRAPHICS_NINE_PATCH_PEEKER_H_ 18 #define _ANDROID_GRAPHICS_NINE_PATCH_PEEKER_H_ 19 20 #include "SkPngChunkReader.h" 21 #include <androidfw/ResourceTypes.h> 22 23 #include <jni.h> 24 25 using namespace android; 26 27 class NinePatchPeeker : public SkPngChunkReader { 28 public: 29 NinePatchPeeker() 30 : mPatch(NULL) 31 , mPatchSize(0) 32 , mHasInsets(false) 33 , mOutlineRadius(0) 34 , mOutlineAlpha(0) { 35 memset(mOpticalInsets, 0, 4 * sizeof(int32_t)); 36 memset(mOutlineInsets, 0, 4 * sizeof(int32_t)); 37 } 38 39 ~NinePatchPeeker() { 40 free(mPatch); 41 } 42 43 bool readChunk(const char tag[], const void* data, size_t length) override; 44 45 jobject createNinePatchInsets(JNIEnv*, float scale) const; 46 void getPadding(JNIEnv*, jobject outPadding) const; 47 void scale(float scaleX, float scaleY, int scaledWidth, int scaledHeight); 48 49 Res_png_9patch* mPatch; 50 size_t mPatchSize; 51 bool mHasInsets; 52 private: 53 int32_t mOpticalInsets[4]; 54 int32_t mOutlineInsets[4]; 55 float mOutlineRadius; 56 uint8_t mOutlineAlpha; 57 }; 58 59 #endif // _ANDROID_GRAPHICS_NINE_PATCH_PEEKER_H_ 60
