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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.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;
if (themeInfo == null) {
Resources res = mContext.getPackageManager().getThemedResourcesForApplication("android",
ThemeConfig.SYSTEM_DEFAULT);
item = new WallpaperItem();
item.preview = BitmapUtils.decodeResource(res,
com.android.internal.R.drawable.default_wallpaper, mPreviewSize, mPreviewSize);
item.thumbnail = Bitmap.createScaledBitmap(item.preview, mThumbnailSize, mThumbnailSize,
true);
if (item != null) {
items.wallpapers.add(item);
items.lockscreen = item;
}
} else {
final Context themeContext = mContext.createPackageContext(themeInfo.packageName, 0);
final AssetManager assets = themeContext.getAssets();
// Get all wallpapers
List<String> paths = ThemeUtils.getWallpaperPathList(assets);
for (String path : paths) {
if (!TextUtils.isEmpty(path)) {
preview = BitmapUtils.getBitmapFromAsset(themeContext, path,
mPreviewSize, mPreviewSize);
item = createWallpaperItems(path, preview);
if (item != null) {
items.wallpapers.add(item);
}
}
}
// Get the lockscreen
String path = ThemeUtils.getLockscreenWallpaperPath(assets);
if (!TextUtils.isEmpty(path)) {
preview = BitmapUtils.getBitmapFromAsset(themeContext, path,
mPreviewSize, mPreviewSize);
items.lockscreen = createWallpaperItems(path, preview);
}
}
return items;
}
private WallpaperItem createWallpaperItems(String path, Bitmap preview) {
if (TextUtils.isEmpty(path) || preview == null) {
return null;
}
WallpaperItem item = new WallpaperItem();
item.assetPath = path;
item.preview = preview;
item.thumbnail = Bitmap.createScaledBitmap(item.preview, mThumbnailSize, mThumbnailSize,
true);
return item;
}
public class WallpaperItem {
public String assetPath;
public Bitmap preview;
public Bitmap thumbnail;
}
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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