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/*
* Copyright (C) 2014 The CyanogenMod 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 org.cyanogenmod.themes.provider.util;
import android.content.Context;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager.NameNotFoundException;
import android.content.pm.ThemeUtils;
import android.content.res.AssetManager;
import android.content.res.Resources;
import android.content.res.ThemeConfig;
import android.graphics.Bitmap;
import android.provider.ThemesContract.PreviewColumns;
import android.text.TextUtils;
import org.cyanogenmod.themes.provider.R;
import java.io.File;
import java.io.IOException;
import java.util.LinkedList;
import java.util.List;
public class WallpaperPreviewGenerator {
private static final String WALLPAPER_ASSET_PATH = "wallpapers";
private static final String LOCKSCREEN_ASSET_PATH = "lockscreen";
private Context mContext;
private int mPreviewSize;
private int mThumbnailSize;
public WallpaperPreviewGenerator(Context context) {
mContext = context;
final Resources res = context.getResources();
mPreviewSize = res.getDimensionPixelSize(R.dimen.wallpaper_preview_size);
mThumbnailSize = res.getDimensionPixelSize(R.dimen.wallpaper_thumbnail_size);
}
public WallpaperItems generateWallpaperPreviews(PackageInfo themeInfo)
throws NameNotFoundException, IOException {
WallpaperItems items = new WallpaperItems();
WallpaperItem item = null;
Bitmap preview = null;
String baseDir = mContext.getFilesDir().getAbsolutePath();
String pkgName;
if (themeInfo == null) {
pkgName = ThemeConfig.SYSTEM_DEFAULT;
Resources res = mContext.getPackageManager().getThemedResourcesForApplication("android",
ThemeConfig.SYSTEM_DEFAULT);
if (preview != null) {
preview.recycle();
}
preview = BitmapUtils.decodeResource(res,
com.android.internal.R.drawable.default_wallpaper, mPreviewSize, mPreviewSize);
item = createWallpaperItems(0, baseDir, null, pkgName, preview, false);
if (item != null) {
items.wallpapers.add(item);
items.lockscreen = item;
}
} else {
final Context themeContext = mContext.createPackageContext(themeInfo.packageName, 0);
final AssetManager assets = themeContext.getAssets();
pkgName = themeInfo.packageName;
// Get all wallpapers
List<String> paths = ThemeUtils.getWallpaperPathList(assets);
int id = 0;
for (String path : paths) {
if (!TextUtils.isEmpty(path)) {
if (preview != null) {
preview.recycle();
}
preview = BitmapUtils.getBitmapFromAsset(themeContext, path,
mPreviewSize, mPreviewSize);
item = createWallpaperItems(id, baseDir, path, pkgName, preview, false);
if (item != null) {
items.wallpapers.add(item);
id++;
}
}
}
// Get the lockscreen
String path = ThemeUtils.getLockscreenWallpaperPath(assets);
if (!TextUtils.isEmpty(path)) {
if (preview != null) {
preview.recycle();
}
preview = BitmapUtils.getBitmapFromAsset(themeContext, path,
mPreviewSize, mPreviewSize);
items.lockscreen = createWallpaperItems(0, baseDir, path, pkgName, preview, true);
}
}
return items;
}
private WallpaperItem createWallpaperItems(int id, String baseDir, String assetPath,
String pkgName, Bitmap preview, boolean isLockWallpaper) {
if (TextUtils.isEmpty(assetPath) && preview == null) {
return null;
}
String componentID = String.format("%03d", id);
WallpaperItem item = new WallpaperItem();
item.assetPath = assetPath;
if (preview != null) {
String filePrefix = isLockWallpaper ? PreviewColumns.LOCK_WALLPAPER_PREVIEW :
PreviewColumns.WALLPAPER_PREVIEW;
String fileName = filePrefix + componentID;
item.previewPath = PreviewUtils.compressAndSaveJpg(preview, baseDir, pkgName, fileName);
Bitmap thumbnail = Bitmap.createScaledBitmap(preview, mThumbnailSize, mThumbnailSize,
true);
filePrefix = isLockWallpaper ? PreviewColumns.LOCK_WALLPAPER_THUMBNAIL :
PreviewColumns.LOCK_WALLPAPER_THUMBNAIL;
fileName = filePrefix + componentID;
item.thumbnailPath = PreviewUtils.compressAndSavePng(thumbnail, baseDir, pkgName,
fileName);
}
return item;
}
public class WallpaperItem {
public String assetPath;
public String previewPath;
public String thumbnailPath;
}
public class WallpaperItems {
// Wallpaper items
public List<WallpaperItem> wallpapers;
// Lockscreen wallpaper item
public WallpaperItem lockscreen;
public WallpaperItems() {
wallpapers = new LinkedList<WallpaperItem>();
lockscreen = null;
}
}
}
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