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
17package com.android.camera;
18
19import android.content.Context;
20import android.content.res.Resources;
21import android.content.res.TypedArray;
22import android.util.AttributeSet;
23
24import com.android.camera.R;
25
26import java.util.List;
27
28/** A {@code ListPreference} where each entry has a corresponding icon. */
29public class IconListPreference extends ListPreference {
30    private int mSingleIconId;
31    private int mIconIds[];
32    private int mLargeIconIds[];
33    private int mImageIds[];
34
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
51    public int getSingleIcon() {
52        return mSingleIconId;
53    }
54
55    public int[] getIconIds() {
56        return mIconIds;
57    }
58
59    public int[] getLargeIconIds() {
60        return mLargeIconIds;
61    }
62
63    public int[] getImageIds() {
64        return mImageIds;
65    }
66
67    public void setIconIds(int[] iconIds) {
68        mIconIds = iconIds;
69    }
70
71    public void setLargeIconIds(int[] largeIconIds) {
72        mLargeIconIds = largeIconIds;
73    }
74
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
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