1 /*
2  * Copyright (C) 2009 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 
17 package com.android.camera;
18 
19 import android.content.Context;
20 import android.content.res.Resources;
21 import android.content.res.TypedArray;
22 import android.util.AttributeSet;
23 
24 import com.android.camera.R;
25 
26 import java.util.List;
27 
28 /** A {@code ListPreference} where each entry has a corresponding icon. */
29 public class IconListPreference extends ListPreference {
30     private int mSingleIconId;
31     private int mIconIds[];
32     private int mLargeIconIds[];
33     private int mImageIds[];
34 
IconListPreference(Context context, AttributeSet attrs)35     public IconListPreference(Context context, AttributeSet attrs) {
36         super(context, attrs);
37         TypedArray a = context.obtainStyledAttributes(
38                 attrs, R.styleable.IconListPreference, 0, 0);
39         Resources res = context.getResources();
40         mSingleIconId = a.getResourceId(
41                 R.styleable.IconListPreference_singleIcon, 0);
42         mIconIds = getIds(res, a.getResourceId(
43                 R.styleable.IconListPreference_icons, 0));
44         mLargeIconIds = getIds(res, a.getResourceId(
45                 R.styleable.IconListPreference_largeIcons, 0));
46         mImageIds = getIds(res, a.getResourceId(
47                 R.styleable.IconListPreference_images, 0));
48         a.recycle();
49     }
50 
getSingleIcon()51     public int getSingleIcon() {
52         return mSingleIconId;
53     }
54 
getIconIds()55     public int[] getIconIds() {
56         return mIconIds;
57     }
58 
getLargeIconIds()59     public int[] getLargeIconIds() {
60         return mLargeIconIds;
61     }
62 
getImageIds()63     public int[] getImageIds() {
64         return mImageIds;
65     }
66 
setIconIds(int[] iconIds)67     public void setIconIds(int[] iconIds) {
68         mIconIds = iconIds;
69     }
70 
setLargeIconIds(int[] largeIconIds)71     public void setLargeIconIds(int[] largeIconIds) {
72         mLargeIconIds = largeIconIds;
73     }
74 
getIds(Resources res, int iconsRes)75     private int[] getIds(Resources res, int iconsRes) {
76         if (iconsRes == 0) return null;
77         TypedArray array = res.obtainTypedArray(iconsRes);
78         int n = array.length();
79         int ids[] = new int[n];
80         for (int i = 0; i < n; ++i) {
81             ids[i] = array.getResourceId(i, 0);
82         }
83         array.recycle();
84         return ids;
85     }
86 
87     @Override
filterUnsupported(List<String> supported)88     public void filterUnsupported(List<String> supported) {
89         CharSequence entryValues[] = getEntryValues();
90         IntArray iconIds = new IntArray();
91         IntArray largeIconIds = new IntArray();
92         IntArray imageIds = new IntArray();
93 
94         for (int i = 0, len = entryValues.length; i < len; i++) {
95             if (supported.indexOf(entryValues[i].toString()) >= 0) {
96                 if (mIconIds != null) iconIds.add(mIconIds[i]);
97                 if (mLargeIconIds != null) largeIconIds.add(mLargeIconIds[i]);
98                 if (mImageIds != null) imageIds.add(mImageIds[i]);
99             }
100         }
101         if (mIconIds != null) mIconIds = iconIds.toArray(new int[iconIds.size()]);
102         if (mLargeIconIds != null) {
103             mLargeIconIds = largeIconIds.toArray(new int[largeIconIds.size()]);
104         }
105         if (mImageIds != null) mImageIds = imageIds.toArray(new int[imageIds.size()]);
106         super.filterUnsupported(supported);
107     }
108 }
109