diff options
Diffstat (limited to 'src/com/android/camera/PhotoGadgetProvider.java')
| -rw-r--r-- | src/com/android/camera/PhotoGadgetProvider.java | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/src/com/android/camera/PhotoGadgetProvider.java b/src/com/android/camera/PhotoGadgetProvider.java new file mode 100644 index 0000000..b03217d --- /dev/null +++ b/src/com/android/camera/PhotoGadgetProvider.java @@ -0,0 +1,223 @@ +/* + * Copyright (C) 2009 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 com.android.camera; + +import com.android.internal.util.XmlUtils; + +import org.xmlpull.v1.XmlPullParser; +import org.xmlpull.v1.XmlPullParserException; + +import android.app.Activity; +import android.app.PendingIntent; +import android.content.BroadcastReceiver; +import android.content.ComponentName; +import android.content.ContentResolver; +import android.content.ContentValues; +import android.content.Context; +import android.content.Intent; +import android.content.pm.ActivityInfo; +import android.content.pm.PackageManager; +import android.database.Cursor; +import android.database.SQLException; +import android.database.sqlite.SQLiteDatabase; +import android.database.sqlite.SQLiteException; +import android.database.sqlite.SQLiteOpenHelper; +import android.gadget.GadgetManager; +import android.gadget.GadgetProvider; +import android.graphics.Bitmap; +import android.graphics.BitmapFactory; +import android.net.Uri; +import android.os.Environment; +import android.provider.Settings; +import android.provider.Calendar.Attendees; +import android.provider.Calendar.Calendars; +import android.provider.Calendar.Instances; +import android.text.format.DateFormat; +import android.text.format.DateUtils; +import android.util.Config; +import android.util.Log; +import android.util.Xml; +import android.view.View; +import android.widget.RemoteViews; + +import java.io.ByteArrayOutputStream; +import java.io.File; +import java.io.FileNotFoundException; +import java.io.FileReader; +import java.io.IOException; + +/** + * Simple gadget to show a user-selected picture. + */ +public class PhotoGadgetProvider extends GadgetProvider { + static final String TAG = "PhotoGadgetProvider"; + static final boolean LOGD = Config.LOGD || true; + + @Override + public void onUpdate(Context context, GadgetManager gadgetManager, int[] gadgetIds) { + // Update each requested gadgetId with its unique photo + PhotoDatabaseHelper helper = new PhotoDatabaseHelper(context); + for (int gadgetId : gadgetIds) { + int[] specificGadget = new int[] { gadgetId }; + RemoteViews views = buildUpdate(context, gadgetId, helper); + if (LOGD) Log.d(TAG, "sending out views="+views+" for id="+gadgetId); + gadgetManager.updateGadget(specificGadget, views); + } + helper.close(); + } + + @Override + public void onDeleted(Context context, int[] gadgetIds) { + // Clean deleted photos out of our database + PhotoDatabaseHelper helper = new PhotoDatabaseHelper(context); + for (int gadgetId : gadgetIds) { + helper.deletePhoto(gadgetId); + } + helper.close(); + } + + /** + * Load photo for given gadget and build {@link RemoteViews} for it. + */ + static RemoteViews buildUpdate(Context context, int gadgetId, PhotoDatabaseHelper helper) { + RemoteViews views = null; + Bitmap bitmap = helper.getPhoto(gadgetId); + if (bitmap != null) { + views = new RemoteViews(context.getPackageName(), R.layout.photo_frame); + views.setImageViewBitmap(R.id.photo, bitmap); + } + return views; + } + + static class PhotoDatabaseHelper extends SQLiteOpenHelper { + private final Context mContext; + + private static final String DATABASE_NAME = "launcher.db"; + + private static final int DATABASE_VERSION = 1; + + static final String TABLE_PHOTOS = "photos"; + static final String FIELD_GADGET_ID = "gadgetId"; + static final String FIELD_PHOTO_BLOB = "photoBlob"; + + PhotoDatabaseHelper(Context context) { + super(context, DATABASE_NAME, null, DATABASE_VERSION); + mContext = context; + } + + @Override + public void onCreate(SQLiteDatabase db) { + db.execSQL("CREATE TABLE " + TABLE_PHOTOS + " (" + + FIELD_GADGET_ID + " INTEGER PRIMARY KEY," + + FIELD_PHOTO_BLOB + " BLOB" + + ");"); + } + + @Override + public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { + int version = oldVersion; + + if (version != DATABASE_VERSION) { + Log.w(TAG, "Destroying all old data."); + db.execSQL("DROP TABLE IF EXISTS " + TABLE_PHOTOS); + onCreate(db); + } + } + + /** + * Store the given bitmap in this database for the given gadgetId. + */ + public boolean setPhoto(int gadgetId, Bitmap bitmap) { + boolean success = false; + try { + // Try go guesstimate how much space the icon will take when serialized + // to avoid unnecessary allocations/copies during the write. + int size = bitmap.getWidth() * bitmap.getHeight() * 4; + ByteArrayOutputStream out = new ByteArrayOutputStream(size); + bitmap.compress(Bitmap.CompressFormat.PNG, 100, out); + out.flush(); + out.close(); + + ContentValues values = new ContentValues(); + values.put(PhotoDatabaseHelper.FIELD_GADGET_ID, gadgetId); + values.put(PhotoDatabaseHelper.FIELD_PHOTO_BLOB, out.toByteArray()); + + SQLiteDatabase db = getWritableDatabase(); + db.insertOrThrow(PhotoDatabaseHelper.TABLE_PHOTOS, null, values); + + success = true; + } catch (SQLiteException e) { + Log.e(TAG, "Could not open database", e); + } catch (IOException e) { + Log.e(TAG, "Could not serialize photo", e); + } + if (LOGD) Log.d(TAG, "setPhoto success="+success); + return success; + } + + static final String[] PHOTOS_PROJECTION = { + FIELD_PHOTO_BLOB, + }; + + static final int INDEX_PHOTO_BLOB = 0; + + /** + * Inflate and return a bitmap for the given gadgetId. + */ + public Bitmap getPhoto(int gadgetId) { + Cursor c = null; + Bitmap bitmap = null; + try { + SQLiteDatabase db = getReadableDatabase(); + String selection = String.format("%s=%d", FIELD_GADGET_ID, gadgetId); + c = db.query(TABLE_PHOTOS, PHOTOS_PROJECTION, selection, null, + null, null, null, null); + + if (c != null && LOGD) Log.d(TAG, "getPhoto query count="+c.getCount()); + + if (c != null && c.moveToFirst()) { + byte[] data = c.getBlob(INDEX_PHOTO_BLOB); + if (data != null) { + bitmap = BitmapFactory.decodeByteArray(data, 0, data.length); + } + } + } catch (SQLiteException e) { + Log.e(TAG, "Could not load photo from database", e); + } finally { + if (c != null) { + c.close(); + } + } + return bitmap; + } + + /** + * Remove any bitmap associated with the given gadgetId. + */ + public void deletePhoto(int gadgetId) { + try { + SQLiteDatabase db = getWritableDatabase(); + String whereClause = String.format("%s=%d", FIELD_GADGET_ID, gadgetId); + db.delete(TABLE_PHOTOS, whereClause, null); + } catch (SQLiteException e) { + Log.e(TAG, "Could not delete photo from database", e); + } + } + } + +} + |