ItemInfo.java revision 9c1289cb3bfb74f86e53ec7ac6dd76bb39666b2d 
1/*
2 * Copyright (C) 2008 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.launcher2;
18
19import java.io.ByteArrayOutputStream;
20import java.io.IOException;
21
22import android.content.ContentValues;
23import android.graphics.Bitmap;
24import android.util.Log;
25
26/**
27 * Represents an item in the launcher.
28 */
29class ItemInfo {
30
31    static final int NO_ID = -1;
32
33    /**
34     * The id in the settings database for this item
35     */
36    long id = NO_ID;
37
38    /**
39     * One of {@link LauncherSettings.Favorites#ITEM_TYPE_APPLICATION},
40     * {@link LauncherSettings.Favorites#ITEM_TYPE_SHORTCUT},
41     * {@link LauncherSettings.Favorites#ITEM_TYPE_USER_FOLDER}, or
42     * {@link LauncherSettings.Favorites#ITEM_TYPE_APPWIDGET}.
43     */
44    int itemType;
45
46    /**
47     * The id of the container that holds this item. For the desktop, this will be
48     * {@link LauncherSettings.Favorites#CONTAINER_DESKTOP}. For the all applications folder it
49     * will be {@link #NO_ID} (since it is not stored in the settings DB). For user folders
50     * it will be the id of the folder.
51     */
52    long container = NO_ID;
53
54    /**
55     * Iindicates the screen in which the shortcut appears.
56     */
57    int screen = -1;
58
59    /**
60     * Indicates the X position of the associated cell.
61     */
62    int cellX = -1;
63
64    /**
65     * Indicates the Y position of the associated cell.
66     */
67    int cellY = -1;
68
69    /**
70     * Indicates the X cell span.
71     */
72    int spanX = 1;
73
74    /**
75     * Indicates the Y cell span.
76     */
77    int spanY = 1;
78
79    /**
80     * Indicates whether the item is a gesture.
81     */
82    boolean isGesture = false;
83
84    ItemInfo() {
85    }
86
87    ItemInfo(ItemInfo info) {
88        id = info.id;
89        cellX = info.cellX;
90        cellY = info.cellY;
91        spanX = info.spanX;
92        spanY = info.spanY;
93        screen = info.screen;
94        itemType = info.itemType;
95        container = info.container;
96    }
97
98    /**
99     * Write the fields of this item to the DB
100     *
101     * @param values
102     */
103    void onAddToDatabase(ContentValues values) {
104        values.put(LauncherSettings.BaseLauncherColumns.ITEM_TYPE, itemType);
105        if (!isGesture) {
106            values.put(LauncherSettings.Favorites.CONTAINER, container);
107            values.put(LauncherSettings.Favorites.SCREEN, screen);
108            values.put(LauncherSettings.Favorites.CELLX, cellX);
109            values.put(LauncherSettings.Favorites.CELLY, cellY);
110            values.put(LauncherSettings.Favorites.SPANX, spanX);
111            values.put(LauncherSettings.Favorites.SPANY, spanY);
112        }
113    }
114
115    static void writeBitmap(ContentValues values, Bitmap bitmap) {
116        if (bitmap != null) {
117            // Try go guesstimate how much space the icon will take when serialized
118            // to avoid unnecessary allocations/copies during the write.
119            int size = bitmap.getWidth() * bitmap.getHeight() * 4;
120            ByteArrayOutputStream out = new ByteArrayOutputStream(size);
121            try {
122                bitmap.compress(Bitmap.CompressFormat.PNG, 100, out);
123                out.flush();
124                out.close();
125
126                values.put(LauncherSettings.Favorites.ICON, out.toByteArray());
127            } catch (IOException e) {
128                Log.w("Favorite", "Could not write icon");
129            }
130        }
131    }
132
133    void unbind() {
134    }
135}
136