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Diffstat (limited to 'src/com/android/gallery3d/glrenderer/NinePatchChunk.java')
-rw-r--r--src/com/android/gallery3d/glrenderer/NinePatchChunk.java82
1 files changed, 82 insertions, 0 deletions
diff --git a/src/com/android/gallery3d/glrenderer/NinePatchChunk.java b/src/com/android/gallery3d/glrenderer/NinePatchChunk.java
new file mode 100644
index 000000000..9dc326622
--- /dev/null
+++ b/src/com/android/gallery3d/glrenderer/NinePatchChunk.java
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.gallery3d.glrenderer;
+
+import android.graphics.Rect;
+
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+
+// See "frameworks/base/include/utils/ResourceTypes.h" for the format of
+// NinePatch chunk.
+class NinePatchChunk {
+
+ public static final int NO_COLOR = 0x00000001;
+ public static final int TRANSPARENT_COLOR = 0x00000000;
+
+ public Rect mPaddings = new Rect();
+
+ public int mDivX[];
+ public int mDivY[];
+ public int mColor[];
+
+ private static void readIntArray(int[] data, ByteBuffer buffer) {
+ for (int i = 0, n = data.length; i < n; ++i) {
+ data[i] = buffer.getInt();
+ }
+ }
+
+ private static void checkDivCount(int length) {
+ if (length == 0 || (length & 0x01) != 0) {
+ throw new RuntimeException("invalid nine-patch: " + length);
+ }
+ }
+
+ public static NinePatchChunk deserialize(byte[] data) {
+ ByteBuffer byteBuffer =
+ ByteBuffer.wrap(data).order(ByteOrder.nativeOrder());
+
+ byte wasSerialized = byteBuffer.get();
+ if (wasSerialized == 0) return null;
+
+ NinePatchChunk chunk = new NinePatchChunk();
+ chunk.mDivX = new int[byteBuffer.get()];
+ chunk.mDivY = new int[byteBuffer.get()];
+ chunk.mColor = new int[byteBuffer.get()];
+
+ checkDivCount(chunk.mDivX.length);
+ checkDivCount(chunk.mDivY.length);
+
+ // skip 8 bytes
+ byteBuffer.getInt();
+ byteBuffer.getInt();
+
+ chunk.mPaddings.left = byteBuffer.getInt();
+ chunk.mPaddings.right = byteBuffer.getInt();
+ chunk.mPaddings.top = byteBuffer.getInt();
+ chunk.mPaddings.bottom = byteBuffer.getInt();
+
+ // skip 4 bytes
+ byteBuffer.getInt();
+
+ readIntArray(chunk.mDivX, byteBuffer);
+ readIntArray(chunk.mDivY, byteBuffer);
+ readIntArray(chunk.mColor, byteBuffer);
+
+ return chunk;
+ }
+} \ No newline at end of file