1666ea1b28a76aeba74744148b15099254d918671Owen Lin/* 2666ea1b28a76aeba74744148b15099254d918671Owen Lin * Copyright (C) 2009 The Android Open Source Project 3666ea1b28a76aeba74744148b15099254d918671Owen Lin * 4666ea1b28a76aeba74744148b15099254d918671Owen Lin * Licensed under the Apache License, Version 2.0 (the "License"); 5666ea1b28a76aeba74744148b15099254d918671Owen Lin * you may not use this file except in compliance with the License. 6666ea1b28a76aeba74744148b15099254d918671Owen Lin * You may obtain a copy of the License at 7666ea1b28a76aeba74744148b15099254d918671Owen Lin * 8666ea1b28a76aeba74744148b15099254d918671Owen Lin * http://www.apache.org/licenses/LICENSE-2.0 9666ea1b28a76aeba74744148b15099254d918671Owen Lin * 10666ea1b28a76aeba74744148b15099254d918671Owen Lin * Unless required by applicable law or agreed to in writing, software 11666ea1b28a76aeba74744148b15099254d918671Owen Lin * distributed under the License is distributed on an "AS IS" BASIS, 12666ea1b28a76aeba74744148b15099254d918671Owen Lin * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13666ea1b28a76aeba74744148b15099254d918671Owen Lin * See the License for the specific language governing permissions and 14666ea1b28a76aeba74744148b15099254d918671Owen Lin * limitations under the License. 15666ea1b28a76aeba74744148b15099254d918671Owen Lin */ 16666ea1b28a76aeba74744148b15099254d918671Owen Lin 17666ea1b28a76aeba74744148b15099254d918671Owen Linpackage com.android.camera; 18666ea1b28a76aeba74744148b15099254d918671Owen Lin 19d6c2fb7a38fcdb58742fcfffd67a4594487ec71cOwen Linimport com.android.gallery.R; 20d6c2fb7a38fcdb58742fcfffd67a4594487ec71cOwen Lin 21666ea1b28a76aeba74744148b15099254d918671Owen Linimport android.appwidget.AppWidgetManager; 22666ea1b28a76aeba74744148b15099254d918671Owen Linimport android.appwidget.AppWidgetProvider; 23666ea1b28a76aeba74744148b15099254d918671Owen Linimport android.content.ContentValues; 24666ea1b28a76aeba74744148b15099254d918671Owen Linimport android.content.Context; 25666ea1b28a76aeba74744148b15099254d918671Owen Linimport android.database.Cursor; 26666ea1b28a76aeba74744148b15099254d918671Owen Linimport android.database.sqlite.SQLiteDatabase; 27666ea1b28a76aeba74744148b15099254d918671Owen Linimport android.database.sqlite.SQLiteException; 28666ea1b28a76aeba74744148b15099254d918671Owen Linimport android.database.sqlite.SQLiteOpenHelper; 29666ea1b28a76aeba74744148b15099254d918671Owen Linimport android.graphics.Bitmap; 30666ea1b28a76aeba74744148b15099254d918671Owen Linimport android.graphics.BitmapFactory; 31666ea1b28a76aeba74744148b15099254d918671Owen Linimport android.util.Log; 32666ea1b28a76aeba74744148b15099254d918671Owen Linimport android.widget.RemoteViews; 33666ea1b28a76aeba74744148b15099254d918671Owen Lin 34666ea1b28a76aeba74744148b15099254d918671Owen Linimport java.io.ByteArrayOutputStream; 35666ea1b28a76aeba74744148b15099254d918671Owen Linimport java.io.IOException; 36666ea1b28a76aeba74744148b15099254d918671Owen Lin 37666ea1b28a76aeba74744148b15099254d918671Owen Lin/** 38666ea1b28a76aeba74744148b15099254d918671Owen Lin * Simple widget to show a user-selected picture. 39666ea1b28a76aeba74744148b15099254d918671Owen Lin */ 40666ea1b28a76aeba74744148b15099254d918671Owen Linpublic class PhotoAppWidgetProvider extends AppWidgetProvider { 41666ea1b28a76aeba74744148b15099254d918671Owen Lin private static final String TAG = "PhotoAppWidgetProvider"; 42666ea1b28a76aeba74744148b15099254d918671Owen Lin private static final boolean LOGD = true; 43666ea1b28a76aeba74744148b15099254d918671Owen Lin 44666ea1b28a76aeba74744148b15099254d918671Owen Lin @Override 45666ea1b28a76aeba74744148b15099254d918671Owen Lin public void onUpdate(Context context, AppWidgetManager appWidgetManager, 46666ea1b28a76aeba74744148b15099254d918671Owen Lin int[] appWidgetIds) { 47666ea1b28a76aeba74744148b15099254d918671Owen Lin // Update each requested appWidgetId with its unique photo 48666ea1b28a76aeba74744148b15099254d918671Owen Lin PhotoDatabaseHelper helper = new PhotoDatabaseHelper(context); 49666ea1b28a76aeba74744148b15099254d918671Owen Lin for (int appWidgetId : appWidgetIds) { 50666ea1b28a76aeba74744148b15099254d918671Owen Lin int[] specificAppWidget = new int[] { appWidgetId }; 51666ea1b28a76aeba74744148b15099254d918671Owen Lin RemoteViews views = buildUpdate(context, appWidgetId, helper); 52666ea1b28a76aeba74744148b15099254d918671Owen Lin if (LOGD) { 53666ea1b28a76aeba74744148b15099254d918671Owen Lin Log.d(TAG, "sending out views=" + views 54666ea1b28a76aeba74744148b15099254d918671Owen Lin + " for id=" + appWidgetId); 55666ea1b28a76aeba74744148b15099254d918671Owen Lin } 56666ea1b28a76aeba74744148b15099254d918671Owen Lin appWidgetManager.updateAppWidget(specificAppWidget, views); 57666ea1b28a76aeba74744148b15099254d918671Owen Lin } 58666ea1b28a76aeba74744148b15099254d918671Owen Lin helper.close(); 59666ea1b28a76aeba74744148b15099254d918671Owen Lin } 60666ea1b28a76aeba74744148b15099254d918671Owen Lin 61666ea1b28a76aeba74744148b15099254d918671Owen Lin @Override 62666ea1b28a76aeba74744148b15099254d918671Owen Lin public void onDeleted(Context context, int[] appWidgetIds) { 63666ea1b28a76aeba74744148b15099254d918671Owen Lin // Clean deleted photos out of our database 64666ea1b28a76aeba74744148b15099254d918671Owen Lin PhotoDatabaseHelper helper = new PhotoDatabaseHelper(context); 65666ea1b28a76aeba74744148b15099254d918671Owen Lin for (int appWidgetId : appWidgetIds) { 66666ea1b28a76aeba74744148b15099254d918671Owen Lin helper.deletePhoto(appWidgetId); 67666ea1b28a76aeba74744148b15099254d918671Owen Lin } 68666ea1b28a76aeba74744148b15099254d918671Owen Lin helper.close(); 69666ea1b28a76aeba74744148b15099254d918671Owen Lin } 70666ea1b28a76aeba74744148b15099254d918671Owen Lin 71666ea1b28a76aeba74744148b15099254d918671Owen Lin /** 72666ea1b28a76aeba74744148b15099254d918671Owen Lin * Load photo for given widget and build {@link RemoteViews} for it. 73666ea1b28a76aeba74744148b15099254d918671Owen Lin */ 74666ea1b28a76aeba74744148b15099254d918671Owen Lin static RemoteViews buildUpdate(Context context, int appWidgetId, 75666ea1b28a76aeba74744148b15099254d918671Owen Lin PhotoDatabaseHelper helper) { 76666ea1b28a76aeba74744148b15099254d918671Owen Lin RemoteViews views = null; 77666ea1b28a76aeba74744148b15099254d918671Owen Lin Bitmap bitmap = helper.getPhoto(appWidgetId); 78666ea1b28a76aeba74744148b15099254d918671Owen Lin if (bitmap != null) { 79666ea1b28a76aeba74744148b15099254d918671Owen Lin views = new RemoteViews(context.getPackageName(), 80666ea1b28a76aeba74744148b15099254d918671Owen Lin R.layout.photo_frame); 81666ea1b28a76aeba74744148b15099254d918671Owen Lin views.setImageViewBitmap(R.id.photo, bitmap); 82666ea1b28a76aeba74744148b15099254d918671Owen Lin } 83666ea1b28a76aeba74744148b15099254d918671Owen Lin return views; 84666ea1b28a76aeba74744148b15099254d918671Owen Lin } 85666ea1b28a76aeba74744148b15099254d918671Owen Lin 86666ea1b28a76aeba74744148b15099254d918671Owen Lin static class PhotoDatabaseHelper extends SQLiteOpenHelper { 87666ea1b28a76aeba74744148b15099254d918671Owen Lin private static final String DATABASE_NAME = "launcher.db"; 88666ea1b28a76aeba74744148b15099254d918671Owen Lin 89666ea1b28a76aeba74744148b15099254d918671Owen Lin private static final int DATABASE_VERSION = 2; 90666ea1b28a76aeba74744148b15099254d918671Owen Lin 91666ea1b28a76aeba74744148b15099254d918671Owen Lin static final String TABLE_PHOTOS = "photos"; 92666ea1b28a76aeba74744148b15099254d918671Owen Lin static final String FIELD_APPWIDGET_ID = "appWidgetId"; 93666ea1b28a76aeba74744148b15099254d918671Owen Lin static final String FIELD_PHOTO_BLOB = "photoBlob"; 94666ea1b28a76aeba74744148b15099254d918671Owen Lin 95666ea1b28a76aeba74744148b15099254d918671Owen Lin PhotoDatabaseHelper(Context context) { 96666ea1b28a76aeba74744148b15099254d918671Owen Lin super(context, DATABASE_NAME, null, DATABASE_VERSION); 97666ea1b28a76aeba74744148b15099254d918671Owen Lin } 98666ea1b28a76aeba74744148b15099254d918671Owen Lin 99666ea1b28a76aeba74744148b15099254d918671Owen Lin @Override 100666ea1b28a76aeba74744148b15099254d918671Owen Lin public void onCreate(SQLiteDatabase db) { 101666ea1b28a76aeba74744148b15099254d918671Owen Lin db.execSQL("CREATE TABLE " + TABLE_PHOTOS + " (" + 102666ea1b28a76aeba74744148b15099254d918671Owen Lin FIELD_APPWIDGET_ID + " INTEGER PRIMARY KEY," + 103666ea1b28a76aeba74744148b15099254d918671Owen Lin FIELD_PHOTO_BLOB + " BLOB" + 104666ea1b28a76aeba74744148b15099254d918671Owen Lin ");"); 105666ea1b28a76aeba74744148b15099254d918671Owen Lin } 106666ea1b28a76aeba74744148b15099254d918671Owen Lin 107666ea1b28a76aeba74744148b15099254d918671Owen Lin @Override 108666ea1b28a76aeba74744148b15099254d918671Owen Lin public void onUpgrade(SQLiteDatabase db, int oldVersion, 109666ea1b28a76aeba74744148b15099254d918671Owen Lin int newVersion) { 110666ea1b28a76aeba74744148b15099254d918671Owen Lin int version = oldVersion; 111666ea1b28a76aeba74744148b15099254d918671Owen Lin 112666ea1b28a76aeba74744148b15099254d918671Owen Lin if (version != DATABASE_VERSION) { 113666ea1b28a76aeba74744148b15099254d918671Owen Lin Log.w(TAG, "Destroying all old data."); 114666ea1b28a76aeba74744148b15099254d918671Owen Lin db.execSQL("DROP TABLE IF EXISTS " + TABLE_PHOTOS); 115666ea1b28a76aeba74744148b15099254d918671Owen Lin onCreate(db); 116666ea1b28a76aeba74744148b15099254d918671Owen Lin } 117666ea1b28a76aeba74744148b15099254d918671Owen Lin } 118666ea1b28a76aeba74744148b15099254d918671Owen Lin 119666ea1b28a76aeba74744148b15099254d918671Owen Lin /** 120666ea1b28a76aeba74744148b15099254d918671Owen Lin * Store the given bitmap in this database for the given appWidgetId. 121666ea1b28a76aeba74744148b15099254d918671Owen Lin */ 122666ea1b28a76aeba74744148b15099254d918671Owen Lin public boolean setPhoto(int appWidgetId, Bitmap bitmap) { 123666ea1b28a76aeba74744148b15099254d918671Owen Lin boolean success = false; 124666ea1b28a76aeba74744148b15099254d918671Owen Lin try { 125666ea1b28a76aeba74744148b15099254d918671Owen Lin // Try go guesstimate how much space the icon will take when 126666ea1b28a76aeba74744148b15099254d918671Owen Lin // serialized to avoid unnecessary allocations/copies during 127666ea1b28a76aeba74744148b15099254d918671Owen Lin // the write. 128666ea1b28a76aeba74744148b15099254d918671Owen Lin int size = bitmap.getWidth() * bitmap.getHeight() * 4; 129666ea1b28a76aeba74744148b15099254d918671Owen Lin ByteArrayOutputStream out = new ByteArrayOutputStream(size); 130666ea1b28a76aeba74744148b15099254d918671Owen Lin bitmap.compress(Bitmap.CompressFormat.PNG, 100, out); 131666ea1b28a76aeba74744148b15099254d918671Owen Lin out.flush(); 132666ea1b28a76aeba74744148b15099254d918671Owen Lin out.close(); 133666ea1b28a76aeba74744148b15099254d918671Owen Lin 134666ea1b28a76aeba74744148b15099254d918671Owen Lin ContentValues values = new ContentValues(); 135666ea1b28a76aeba74744148b15099254d918671Owen Lin values.put(PhotoDatabaseHelper.FIELD_APPWIDGET_ID, appWidgetId); 136666ea1b28a76aeba74744148b15099254d918671Owen Lin values.put(PhotoDatabaseHelper.FIELD_PHOTO_BLOB, 137666ea1b28a76aeba74744148b15099254d918671Owen Lin out.toByteArray()); 138666ea1b28a76aeba74744148b15099254d918671Owen Lin 139666ea1b28a76aeba74744148b15099254d918671Owen Lin SQLiteDatabase db = getWritableDatabase(); 140666ea1b28a76aeba74744148b15099254d918671Owen Lin db.insertOrThrow(PhotoDatabaseHelper.TABLE_PHOTOS, null, 141666ea1b28a76aeba74744148b15099254d918671Owen Lin values); 142666ea1b28a76aeba74744148b15099254d918671Owen Lin 143666ea1b28a76aeba74744148b15099254d918671Owen Lin success = true; 144666ea1b28a76aeba74744148b15099254d918671Owen Lin } catch (SQLiteException e) { 145666ea1b28a76aeba74744148b15099254d918671Owen Lin Log.e(TAG, "Could not open database", e); 146666ea1b28a76aeba74744148b15099254d918671Owen Lin } catch (IOException e) { 147666ea1b28a76aeba74744148b15099254d918671Owen Lin Log.e(TAG, "Could not serialize photo", e); 148666ea1b28a76aeba74744148b15099254d918671Owen Lin } 149666ea1b28a76aeba74744148b15099254d918671Owen Lin if (LOGD) { 150666ea1b28a76aeba74744148b15099254d918671Owen Lin Log.d(TAG, "setPhoto success=" + success); 151666ea1b28a76aeba74744148b15099254d918671Owen Lin } 152666ea1b28a76aeba74744148b15099254d918671Owen Lin return success; 153666ea1b28a76aeba74744148b15099254d918671Owen Lin } 154666ea1b28a76aeba74744148b15099254d918671Owen Lin 155666ea1b28a76aeba74744148b15099254d918671Owen Lin static final String[] PHOTOS_PROJECTION = { 156666ea1b28a76aeba74744148b15099254d918671Owen Lin FIELD_PHOTO_BLOB, 157666ea1b28a76aeba74744148b15099254d918671Owen Lin }; 158666ea1b28a76aeba74744148b15099254d918671Owen Lin 159666ea1b28a76aeba74744148b15099254d918671Owen Lin static final int INDEX_PHOTO_BLOB = 0; 160666ea1b28a76aeba74744148b15099254d918671Owen Lin 161666ea1b28a76aeba74744148b15099254d918671Owen Lin /** 162666ea1b28a76aeba74744148b15099254d918671Owen Lin * Inflate and return a bitmap for the given appWidgetId. 163666ea1b28a76aeba74744148b15099254d918671Owen Lin */ 164666ea1b28a76aeba74744148b15099254d918671Owen Lin public Bitmap getPhoto(int appWidgetId) { 165666ea1b28a76aeba74744148b15099254d918671Owen Lin Cursor c = null; 166666ea1b28a76aeba74744148b15099254d918671Owen Lin Bitmap bitmap = null; 167666ea1b28a76aeba74744148b15099254d918671Owen Lin try { 168666ea1b28a76aeba74744148b15099254d918671Owen Lin SQLiteDatabase db = getReadableDatabase(); 169666ea1b28a76aeba74744148b15099254d918671Owen Lin String selection = String.format("%s=%d", FIELD_APPWIDGET_ID, 170666ea1b28a76aeba74744148b15099254d918671Owen Lin appWidgetId); 171666ea1b28a76aeba74744148b15099254d918671Owen Lin c = db.query(TABLE_PHOTOS, PHOTOS_PROJECTION, selection, null, 172666ea1b28a76aeba74744148b15099254d918671Owen Lin null, null, null, null); 173666ea1b28a76aeba74744148b15099254d918671Owen Lin 174666ea1b28a76aeba74744148b15099254d918671Owen Lin if (c != null && LOGD) { 175666ea1b28a76aeba74744148b15099254d918671Owen Lin Log.d(TAG, "getPhoto query count=" + c.getCount()); 176666ea1b28a76aeba74744148b15099254d918671Owen Lin } 177666ea1b28a76aeba74744148b15099254d918671Owen Lin 178666ea1b28a76aeba74744148b15099254d918671Owen Lin if (c != null && c.moveToFirst()) { 179666ea1b28a76aeba74744148b15099254d918671Owen Lin byte[] data = c.getBlob(INDEX_PHOTO_BLOB); 180666ea1b28a76aeba74744148b15099254d918671Owen Lin if (data != null) { 181666ea1b28a76aeba74744148b15099254d918671Owen Lin bitmap = BitmapFactory.decodeByteArray(data, 0, 182666ea1b28a76aeba74744148b15099254d918671Owen Lin data.length); 183666ea1b28a76aeba74744148b15099254d918671Owen Lin } 184666ea1b28a76aeba74744148b15099254d918671Owen Lin } 185666ea1b28a76aeba74744148b15099254d918671Owen Lin } catch (SQLiteException e) { 186666ea1b28a76aeba74744148b15099254d918671Owen Lin Log.e(TAG, "Could not load photo from database", e); 187666ea1b28a76aeba74744148b15099254d918671Owen Lin } finally { 188666ea1b28a76aeba74744148b15099254d918671Owen Lin if (c != null) { 189666ea1b28a76aeba74744148b15099254d918671Owen Lin c.close(); 190666ea1b28a76aeba74744148b15099254d918671Owen Lin } 191666ea1b28a76aeba74744148b15099254d918671Owen Lin } 192666ea1b28a76aeba74744148b15099254d918671Owen Lin return bitmap; 193666ea1b28a76aeba74744148b15099254d918671Owen Lin } 194666ea1b28a76aeba74744148b15099254d918671Owen Lin 195666ea1b28a76aeba74744148b15099254d918671Owen Lin /** 196666ea1b28a76aeba74744148b15099254d918671Owen Lin * Remove any bitmap associated with the given appWidgetId. 197666ea1b28a76aeba74744148b15099254d918671Owen Lin */ 198666ea1b28a76aeba74744148b15099254d918671Owen Lin public void deletePhoto(int appWidgetId) { 199666ea1b28a76aeba74744148b15099254d918671Owen Lin try { 200666ea1b28a76aeba74744148b15099254d918671Owen Lin SQLiteDatabase db = getWritableDatabase(); 201666ea1b28a76aeba74744148b15099254d918671Owen Lin String whereClause = String.format("%s=%d", FIELD_APPWIDGET_ID, 202666ea1b28a76aeba74744148b15099254d918671Owen Lin appWidgetId); 203666ea1b28a76aeba74744148b15099254d918671Owen Lin db.delete(TABLE_PHOTOS, whereClause, null); 204666ea1b28a76aeba74744148b15099254d918671Owen Lin } catch (SQLiteException e) { 205666ea1b28a76aeba74744148b15099254d918671Owen Lin Log.e(TAG, "Could not delete photo from database", e); 206666ea1b28a76aeba74744148b15099254d918671Owen Lin } 207666ea1b28a76aeba74744148b15099254d918671Owen Lin } 208666ea1b28a76aeba74744148b15099254d918671Owen Lin } 209666ea1b28a76aeba74744148b15099254d918671Owen Lin 210666ea1b28a76aeba74744148b15099254d918671Owen Lin} 211666ea1b28a76aeba74744148b15099254d918671Owen Lin 212