1/*
2 * Copyright (C) 2013 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.settings.accessibility;
18
19import android.content.Context;
20import android.util.AttributeSet;
21import android.view.View;
22import android.view.accessibility.CaptioningManager;
23import android.view.accessibility.CaptioningManager.CaptionStyle;
24import android.widget.TextView;
25
26import com.android.internal.widget.SubtitleView;
27import com.android.settings.R;
28
29public class PresetPreference extends ListDialogPreference {
30    private static final float DEFAULT_FONT_SIZE = 32f;
31
32    private final CaptioningManager mCaptioningManager;
33
34    public PresetPreference(Context context, AttributeSet attrs) {
35        super(context, attrs);
36
37        setDialogLayoutResource(R.layout.grid_picker_dialog);
38        setListItemLayoutResource(R.layout.preset_picker_item);
39
40        mCaptioningManager = (CaptioningManager) context.getSystemService(
41                Context.CAPTIONING_SERVICE);
42    }
43
44    @Override
45    public boolean shouldDisableDependents() {
46        return getValue() != CaptionStyle.PRESET_CUSTOM
47                || super.shouldDisableDependents();
48    }
49
50    @Override
51    protected void onBindListItem(View view, int index) {
52        final View previewViewport = view.findViewById(R.id.preview_viewport);
53        final SubtitleView previewText = (SubtitleView) view.findViewById(R.id.preview);
54        final int value = getValueAt(index);
55        CaptionPropertiesFragment.applyCaptionProperties(
56                mCaptioningManager, previewText, previewViewport, value);
57
58        final float density = getContext().getResources().getDisplayMetrics().density;
59        previewText.setTextSize(DEFAULT_FONT_SIZE * density);
60
61        final CharSequence title = getTitleAt(index);
62        if (title != null) {
63            final TextView summary = (TextView) view.findViewById(R.id.summary);
64            summary.setText(title);
65        }
66    }
67}
68