Crop wallpaper and lockscreen images before saving them (d604ab35) · Commits · e / os / android_frameworks_base

core/java/com/android/internal/util/cm/ImageUtils.java

0 → 100644

+309 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2013-2014 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 com.android.internal.util.cm;

		import android.app.WallpaperManager;
		import android.content.Context;
		import android.content.pm.PackageInfo;
		import android.content.pm.ThemeUtils;
		import android.content.res.AssetManager;
		import android.content.res.Resources;
		import android.database.Cursor;
		import android.graphics.Bitmap;
		import android.graphics.BitmapFactory;
		import android.graphics.Point;
		import android.net.Uri;
		import android.provider.ThemesContract;
		import android.provider.ThemesContract.ThemesColumns;
		import android.text.TextUtils;
		import android.util.Log;
		import android.webkit.URLUtil;
		import java.io.ByteArrayInputStream;
		import java.io.ByteArrayOutputStream;
		import java.io.InputStream;

		import libcore.io.IoUtils;

		public class ImageUtils {
		private static final String TAG = ImageUtils.class.getSimpleName();

		private static final String ASSET_URI_PREFIX = "file:///android_asset/";
		private static final int DEFAULT_IMG_QUALITY = 100;

		/**
		* Gets the Width and Height of the image
		*
		* @param inputStream The input stream of the image
		*
		* @return A point structure that holds the Width and Height (x and y)/*"
		*/
		public static Point getImageDimension(InputStream inputStream) {
		if (inputStream == null) {
		throw new IllegalArgumentException("'inputStream' cannot be null!");
		}
		BitmapFactory.Options options = new BitmapFactory.Options();
		options.inJustDecodeBounds = true;
		BitmapFactory.decodeStream(inputStream, null, options);
		Point point = new Point(options.outWidth,options.outHeight);
		return point;
		}

		/**
		* Crops the input image and returns a new InputStream of the cropped area
		*
		* @param inputStream The input stream of the image
		* @param imageWidth Width of the input image
		* @param imageHeight Height of the input image
		* @param inputStream Desired Width
		* @param inputStream Desired Width
		*
		* @return a new InputStream of the cropped area/*"
		*/
		public static InputStream cropImage(InputStream inputStream, int imageWidth, int imageHeight,
		int outWidth, int outHeight) throws IllegalArgumentException {
		if (inputStream == null){
		throw new IllegalArgumentException("inputStream cannot be null");
		}

		if (imageWidth <= 0 \|\| imageHeight <= 0) {
		throw new IllegalArgumentException(
		String.format("imageWidth and imageHeight must be > 0: imageWidth=%d" +
		" imageHeight=%d", imageWidth, imageHeight));
		}

		if (outWidth <= 0 \|\| outHeight <= 0) {
		throw new IllegalArgumentException(
		String.format("outWidth and outHeight must be > 0: outWidth=%d" +
		" outHeight=%d", imageWidth, outHeight));
		}

		int scaleDownSampleSize = Math.min(imageWidth / outWidth, imageHeight / outHeight);
		if (scaleDownSampleSize > 0) {
		imageWidth /= scaleDownSampleSize;
		imageHeight /= scaleDownSampleSize;
		} else {
		float ratio = (float) outWidth / outHeight;
		if (imageWidth < imageHeight * ratio) {
		outWidth = imageWidth;
		outHeight = (int) (outWidth / ratio);
		} else {
		outHeight = imageHeight;
		outWidth = (int) (outHeight * ratio);
		}
		}
		int left = (imageWidth - outWidth) / 2;
		int top = (imageHeight - outHeight) / 2;
		InputStream compressed = null;
		try {
		BitmapFactory.Options options = new BitmapFactory.Options();
		if (scaleDownSampleSize > 1) {
		options.inSampleSize = scaleDownSampleSize;
		}
		Bitmap bitmap = BitmapFactory.decodeStream(inputStream, null, options);
		if (bitmap == null) {
		return null;
		}
		Bitmap cropped = Bitmap.createBitmap(bitmap, left, top, outWidth, outHeight);
		ByteArrayOutputStream tmpOut = new ByteArrayOutputStream(2048);
		if (cropped.compress(Bitmap.CompressFormat.PNG, DEFAULT_IMG_QUALITY, tmpOut)) {
		byte[] outByteArray = tmpOut.toByteArray();
		compressed = new ByteArrayInputStream(outByteArray);
		}
		} catch (Exception e) {
		Log.e(TAG, "Exception " + e);
		}
		return compressed;
		}

		/**
		* Crops the lock screen image and returns a new InputStream of the cropped area
		*
		* @param pkgName Name of the theme package
		* @param context The context
		*
		* @return a new InputStream of the cropped image/*"
		*/
		public static InputStream getCroppedKeyguardStream(String pkgName, Context context)
		throws IllegalArgumentException {
		if (TextUtils.isEmpty(pkgName)) {
		throw new IllegalArgumentException("'pkgName' cannot be null or empty!");
		}
		if (context == null) {
		throw new IllegalArgumentException("'context' cannot be null!");
		}

		InputStream cropped = null;
		InputStream stream = null;
		try {
		stream = getOriginalKeyguardStream(pkgName, context);
		if (stream == null) {
		return null;
		}
		Point point = getImageDimension(stream);
		IoUtils.closeQuietly(stream);
		if (point == null \|\| point.x == 0 \|\| point.y == 0) {
		return null;
		}
		WallpaperManager wm = WallpaperManager.getInstance(context);
		int outWidth = wm.getDesiredMinimumWidth();
		int outHeight = wm.getDesiredMinimumHeight();
		stream = getOriginalKeyguardStream(pkgName, context);
		if (stream == null) {
		return null;
		}
		cropped = cropImage(stream, point.x, point.y, outWidth, outHeight);
		} catch (Exception e) {
		Log.e(TAG, "Exception " + e);
		} finally {
		IoUtils.closeQuietly(stream);
		}
		return cropped;
		}

		/**
		* Crops the wallpaper image and returns a new InputStream of the cropped area
		*
		* @param pkgName Name of the theme package
		* @param context The context
		*
		* @return a new InputStream of the cropped image/*"
		*/
		public static InputStream getCroppedWallpaperStream(String pkgName, Context context) {
		if (TextUtils.isEmpty(pkgName)) {
		throw new IllegalArgumentException("'pkgName' cannot be null or empty!");
		}
		if (context == null) {
		throw new IllegalArgumentException("'context' cannot be null!");
		}

		InputStream cropped = null;
		InputStream stream = null;
		try {
		stream = getOriginalWallpaperStream(pkgName, context);
		if (stream == null) {
		return null;
		}
		Point point = getImageDimension(stream);
		IoUtils.closeQuietly(stream);
		if (point == null \|\| point.x == 0 \|\| point.y == 0) {
		return null;
		}
		WallpaperManager wm = WallpaperManager.getInstance(context);
		int outWidth = wm.getDesiredMinimumWidth();
		int outHeight = wm.getDesiredMinimumHeight();
		stream = getOriginalWallpaperStream(pkgName, context);
		if (stream == null) {
		return null;
		}
		cropped = cropImage(stream, point.x, point.y, outWidth, outHeight);
		} catch (Exception e) {
		Log.e(TAG, "Exception " + e);
		} finally {
		IoUtils.closeQuietly(stream);
		}
		return cropped;
		}

		private static InputStream getOriginalKeyguardStream(String pkgName, Context context) {
		if (TextUtils.isEmpty(pkgName) \|\| context == null) {
		return null;
		}

		InputStream inputStream = null;
		try {
		//Get input WP stream from the theme
		Context themeCtx = context.createPackageContext(pkgName,
		Context.CONTEXT_IGNORE_SECURITY);
		AssetManager assetManager = themeCtx.getAssets();
		String wpPath = ThemeUtils.getLockscreenWallpaperPath(assetManager);
		if (wpPath == null) {
		Log.w(TAG, "Not setting lockscreen wp because wallpaper file was not found.");
		} else {
		inputStream = ThemeUtils.getInputStreamFromAsset(themeCtx,
		ASSET_URI_PREFIX + wpPath);
		}
		} catch (Exception e) {
		Log.e(TAG, "There was an error setting lockscreen wp for pkg " + pkgName, e);
		}
		return inputStream;
		}

		private static InputStream getOriginalWallpaperStream(String pkgName, Context context) {
		if (TextUtils.isEmpty(pkgName) \|\| context == null) {
		return null;
		}

		InputStream inputStream = null;
		String selection = ThemesContract.ThemesColumns.PKG_NAME + "= ?";
		String[] selectionArgs = {pkgName};
		Cursor c = context.getContentResolver().query(ThemesColumns.CONTENT_URI,
		null, selection,
		selectionArgs, null);
		if (c == null \|\| c.getCount() < 1) {
		if (c != null) c.close();
		return null;
		} else {
		c.moveToFirst();
		}

		try {
		Context themeContext = context.createPackageContext(pkgName,
		Context.CONTEXT_IGNORE_SECURITY);
		boolean isLegacyTheme = c.getInt(
		c.getColumnIndex(ThemesColumns.IS_LEGACY_THEME)) == 1;
		if (!isLegacyTheme) {
		String wallpaper = c.getString(
		c.getColumnIndex(ThemesColumns.WALLPAPER_URI));
		if (wallpaper != null) {
		if (URLUtil.isAssetUrl(wallpaper)) {
		inputStream = ThemeUtils.getInputStreamFromAsset(themeContext, wallpaper);
		} else {
		inputStream = context.getContentResolver().openInputStream(
		Uri.parse(wallpaper));
		}
		} else {
		// try and get the wallpaper directly from the apk if the URI was null
		Context themeCtx = context.createPackageContext(pkgName,
		Context.CONTEXT_IGNORE_SECURITY);
		AssetManager assetManager = themeCtx.getAssets();
		String wpPath = ThemeUtils.getWallpaperPath(assetManager);
		if (wpPath == null) {
		Log.e(TAG, "Not setting wp because wallpaper file was not found.");
		} else {
		inputStream = ThemeUtils.getInputStreamFromAsset(themeCtx,
		ASSET_URI_PREFIX + wpPath);
		}
		}
		} else {
		Resources resources = context.getResources();
		PackageInfo pi = context.getPackageManager().getPackageInfo(pkgName, 0);

		if (pi.legacyThemeInfos != null && pi.legacyThemeInfos.length > 0) {
		inputStream =
		resources.openRawResource(pi.legacyThemeInfos[0].wallpaperResourceId);
		}
		}
		} catch (Exception e) {
		Log.e(TAG, "getWallpaperStream: " + e);
		} finally {
		c.close();
		}

		return inputStream;
		}
		}

services/java/com/android/server/ThemeService.java

+7 −52

Original line number	Diff line number	Diff line
		@@ -43,7 +43,6 @@ import android.database.Cursor;
		import android.graphics.Bitmap;
		import android.graphics.BitmapFactory;
		import android.media.RingtoneManager;
		import android.net.Uri;
		import android.os.Binder;
		import android.os.Environment;
		import android.os.FileUtils;
		@@ -62,9 +61,9 @@ import android.provider.ThemesContract.MixnMatchColumns;
		import android.provider.ThemesContract.ThemesColumns;
		import android.text.TextUtils;
		import android.util.Log;
		import android.webkit.URLUtil;

		import com.android.internal.R;
		import com.android.internal.util.cm.ImageUtils;

		import java.io.BufferedInputStream;
		import java.io.File;
		@@ -587,19 +586,11 @@ public class ThemeService extends IThemeService.Stub {
		} else if (TextUtils.isEmpty(pkgName)) {
		wm.clearKeyguardWallpaper();
		} else {
		//Get input WP stream from the theme
		Context themeCtx = mContext.createPackageContext(pkgName,
		Context.CONTEXT_IGNORE_SECURITY);
		AssetManager assetManager = themeCtx.getAssets();
		String wpPath = ThemeUtils.getLockscreenWallpaperPath(assetManager);
		if (wpPath == null) {
		Log.w(TAG, "Not setting lockscreen wp because wallpaper file was not found.");
		return false;
		InputStream in = ImageUtils.getCroppedKeyguardStream(pkgName, mContext);
		if (in != null) {
		wm.setKeyguardStream(in);
		ThemeUtils.closeQuietly(in);
		}
		InputStream is = ThemeUtils.getInputStreamFromAsset(themeCtx,
		"file:///android_asset/" + wpPath);

		wm.setKeyguardStream(is);
		}
		} catch (Exception e) {
		Log.e(TAG, "There was an error setting lockscreen wp for pkg " + pkgName, e);
		@@ -635,45 +626,9 @@ public class ThemeService extends IThemeService.Stub {
		} else {
		InputStream in = null;
		try {
		Context themeContext = mContext.createPackageContext(pkgName,
		Context.CONTEXT_IGNORE_SECURITY);
		boolean isLegacyTheme = c.getInt(
		c.getColumnIndex(ThemesColumns.IS_LEGACY_THEME)) == 1;
		if (!isLegacyTheme) {
		String wallpaper = c.getString(
		c.getColumnIndex(ThemesColumns.WALLPAPER_URI));
		if (wallpaper != null) {
		if (URLUtil.isAssetUrl(wallpaper)) {
		in = ThemeUtils.getInputStreamFromAsset(themeContext, wallpaper);
		} else {
		in = mContext.getContentResolver().openInputStream(
		Uri.parse(wallpaper));
		}
		} else {
		// try and get the wallpaper directly from the apk if the URI was null
		Context themeCtx = mContext.createPackageContext(pkgName,
		Context.CONTEXT_IGNORE_SECURITY);
		AssetManager assetManager = themeCtx.getAssets();
		String wpPath = ThemeUtils.getWallpaperPath(assetManager);
		if (wpPath == null) {
		Log.w(TAG, "Not setting wp because wallpaper file was not found.");
		return false;
		}
		in = ThemeUtils.getInputStreamFromAsset(themeCtx, "file:///android_asset/"
		+ wpPath);
		}
		in = ImageUtils.getCroppedWallpaperStream(pkgName, mContext);
		if (in != null)
		wm.setStream(in);
		} else {
		PackageInfo pi = mPM.getPackageInfo(pkgName, 0);
		if (pi.legacyThemeInfos != null && pi.legacyThemeInfos.length > 0) {
		// we need to get an instance of the WallpaperManager using the theme's
		// context so it can retrieve the resource
		wm = WallpaperManager.getInstance(themeContext);
		wm.setResource(pi.legacyThemeInfos[0].wallpaperResourceId);
		} else {
		return false;
		}
		}
		} catch (Exception e) {
		return false;
		} finally {