| /* |
| * Copyright (C) 2011 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 android.holo.cts; |
| |
| import android.content.Context; |
| import android.content.res.Resources; |
| import android.graphics.Bitmap; |
| import android.graphics.Bitmap.CompressFormat; |
| import android.graphics.drawable.BitmapDrawable; |
| import android.graphics.drawable.Drawable; |
| import android.holo.cts.LayoutAdapter.LayoutInfo; |
| import android.holo.cts.ThemeAdapter.ThemeInfo; |
| import android.os.Environment; |
| import android.util.Log; |
| |
| import java.io.File; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| |
| /** |
| * Collection of utility methods to handle creation and deletion of assets. |
| * |
| * It creates a directory called "cts-holo-assets" on the external storage. |
| * Below that it creates a directory called "reference" to store images |
| * generated by the generator and "failure" to store images that failed to |
| * match when running the test. |
| */ |
| class BitmapAssets { |
| |
| private static final String TAG = BitmapAssets.class.getSimpleName(); |
| |
| static final int TYPE_REFERENCE = 0; |
| |
| static final int TYPE_FAILED = 1; |
| |
| static final int TYPE_DIFF = 2; |
| |
| public static boolean clearDirectory(int type) { |
| if (!isExternalStorageReady()) { |
| return false; |
| } |
| |
| File dir = getBitmapDir(type); |
| if (dir.exists()) { |
| File[] files = dir.listFiles(); |
| int numFiles = files.length; |
| for (int i = 0; i < numFiles; i++) { |
| files[i].delete(); |
| } |
| } |
| return true; |
| } |
| |
| private static boolean isExternalStorageReady() { |
| return Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState()); |
| } |
| |
| public static File getBitmapDir(int type) { |
| String subDir; |
| switch (type) { |
| case TYPE_REFERENCE: |
| subDir = "reference"; |
| break; |
| case TYPE_FAILED: |
| subDir = "failed"; |
| break; |
| case TYPE_DIFF: |
| subDir = "diff"; |
| break; |
| default: |
| throw new IllegalArgumentException("Bad type: " + type); |
| } |
| |
| File file = new File(Environment.getExternalStorageDirectory(), "cts-holo-assets"); |
| return new File(file, subDir); |
| } |
| |
| public static String getBitmapName(ThemeInfo themeInfo, LayoutInfo layoutInfo) { |
| return themeInfo.getBitmapName() + "_" + layoutInfo.getBitmapName(); |
| } |
| |
| public static Bitmap getBitmap(Context context, String bitmapName) { |
| Resources resources = context.getResources(); |
| int resourceId = resources.getIdentifier(bitmapName, "drawable", context.getPackageName()); |
| return ((BitmapDrawable) resources.getDrawable(resourceId)).getBitmap(); |
| } |
| |
| public static File getBitmapPath(String bitmapName, int type) { |
| String prefix; |
| switch (type) { |
| case TYPE_REFERENCE: |
| prefix = ""; |
| break; |
| case TYPE_FAILED: |
| prefix = "failed_"; |
| break; |
| case TYPE_DIFF: |
| prefix = "diff_"; |
| break; |
| default: |
| throw new IllegalArgumentException("Bad type: " + type); |
| } |
| |
| return new File(getBitmapDir(type), prefix + bitmapName + ".png"); |
| } |
| |
| public static String saveBitmap(Bitmap bitmap, String bitmapName, int type) throws IOException { |
| if (!isExternalStorageReady()) { |
| Log.i(TAG, "External storage for saving bitmaps is not mounted"); |
| return null; |
| } |
| |
| File file = getBitmapPath(bitmapName, type); |
| File dir = file.getParentFile(); |
| dir.mkdirs(); |
| |
| FileOutputStream stream = new FileOutputStream(file); |
| bitmap.compress(CompressFormat.PNG, 100, stream); |
| stream.close(); |
| return file.getAbsolutePath(); |
| } |
| } |