1 /*
2  * Copyright (C) 2010 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.ui;
18 
19 import com.android.camera.CameraSettings;
20 import com.android.camera.IconListPreference;
21 import com.android.camera.R;
22 
23 import android.content.Context;
24 import android.util.Log;
25 import android.view.LayoutInflater;
26 import android.view.ViewGroup;
27 
28 // An indicator button that represents one camera setting. Ex: flash. Pressing it opens a popup
29 // window.
30 public class IndicatorButton extends AbstractIndicatorButton
31         implements BasicSettingPopup.Listener, EffectSettingPopup.Listener{
32     private final String TAG = "IndicatorButton";
33     private IconListPreference mPreference;
34     // Scene mode can override the original preference value.
35     private String mOverrideValue;
36     private Listener mListener;
37 
38     static public interface Listener {
onSettingChanged()39         public void onSettingChanged();
40     }
41 
setSettingChangedListener(Listener listener)42     public void setSettingChangedListener(Listener listener) {
43         mListener = listener;
44     }
45 
IndicatorButton(Context context, IconListPreference pref)46     public IndicatorButton(Context context, IconListPreference pref) {
47         super(context);
48         mPreference = pref;
49         reloadPreference();
50     }
51 
52     @Override
reloadPreference()53     public void reloadPreference() {
54         int[] iconIds = mPreference.getLargeIconIds();
55         if (iconIds != null) {
56             // Each entry has a corresponding icon.
57             int index;
58             if (mOverrideValue == null) {
59                 index = mPreference.findIndexOfValue(mPreference.getValue());
60             } else {
61                 index = mPreference.findIndexOfValue(mOverrideValue);
62                 if (index == -1) {
63                     // Avoid the crash if camera driver has bugs.
64                     Log.e(TAG, "Fail to find override value=" + mOverrideValue);
65                     mPreference.print();
66                     return;
67                 }
68             }
69             setImageResource(iconIds[index]);
70         } else {
71             // The preference only has a single icon to represent it.
72             setImageResource(mPreference.getSingleIcon());
73         }
74         super.reloadPreference();
75     }
76 
getKey()77     public String getKey() {
78         return mPreference.getKey();
79     }
80 
81     @Override
isOverridden()82     public boolean isOverridden() {
83         return mOverrideValue != null;
84     }
85 
86     @Override
overrideSettings(final String ... keyvalues)87     public void overrideSettings(final String ... keyvalues) {
88         mOverrideValue = null;
89         for (int i = 0; i < keyvalues.length; i += 2) {
90             String key = keyvalues[i];
91             String value = keyvalues[i + 1];
92             if (key.equals(getKey())) {
93                 mOverrideValue = value;
94                 setEnabled(value == null);
95                 break;
96             }
97         }
98         reloadPreference();
99     }
100 
101     @Override
initializePopup()102     protected void initializePopup() {
103         LayoutInflater inflater = (LayoutInflater) getContext().getSystemService(
104                 Context.LAYOUT_INFLATER_SERVICE);
105         ViewGroup root = (ViewGroup) getRootView().findViewById(R.id.frame_layout);
106 
107         AbstractSettingPopup popup;
108         if (CameraSettings.KEY_VIDEO_EFFECT.equals(getKey())) {
109             EffectSettingPopup effect = (EffectSettingPopup) inflater.inflate(
110                     R.layout.effect_setting_popup, root, false);
111             effect.initialize(mPreference);
112             effect.setSettingChangedListener(this);
113             mPopup = effect;
114         } else {
115             BasicSettingPopup basic = (BasicSettingPopup) inflater.inflate(
116                     R.layout.basic_setting_popup, root, false);
117             basic.initialize(mPreference);
118             basic.setSettingChangedListener(this);
119             mPopup = basic;
120         }
121         root.addView(mPopup);
122     }
123 
124     @Override
onSettingChanged()125     public void onSettingChanged() {
126         reloadPreference();
127         // Dismiss later so the activated state can be updated before dismiss.
128         dismissPopupDelayed();
129         if (mListener != null) {
130             mListener.onSettingChanged();
131         }
132     }
133 }
134