summaryrefslogtreecommitdiffstats
path: root/DeviceSettings/src/com/cyanogenmod/settings/device/AudioOut.java
blob: 179a7dd2096a16d16f0e668c015b1a194f181697 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
/*
 * Copyright (C) 2013 The CyanogenMod Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.cyanogenmod.settings.device;

import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.graphics.Color;
import android.graphics.LightingColorFilter;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.LayerDrawable;
import android.os.Bundle;
import android.os.Vibrator;
import android.preference.DialogPreference;
import android.preference.PreferenceManager;
import android.util.AttributeSet;
import android.util.Log;
import android.view.View;
import android.widget.SeekBar;
import android.widget.TextView;
import android.widget.Button;

import java.lang.Math;
import java.text.DecimalFormat;

/**
 * Special preference type that allows configuration of audio out volume on some smdk4412
 * Devices
 */
public class AudioOut extends DialogPreference implements SeekBar.OnSeekBarChangeListener {
    private static final String TAG = "DeviceSettings_AudioOut";

    private static String AUDIOOUT_HEADPHONE_FILE = "/data/local/audio/out_headphone";
    private static String AUDIOOUT_SPEAKER_FILE = "/data/local/audio/out_speaker";
    private static int MAX_VALUE;
    private static int WARNING_THRESHOLD;
    private static int DEFAULT_VALUE;
    private static int MIN_VALUE;

    private SeekBar mHeadphoneSeekBar;
    private SeekBar mSpeakerSeekBar;
    private TextView mHeadphoneValue;
    private TextView mSpeakerValue;
    private TextView mWarning;

    private String mHeadphoneOgValue;
    private String mSpeakerOgValue;
    private int mHeadphoneOgPercent;
    private int mSpeakerOgPercent;

    private Drawable mHeadphoneProgressDrawable;
    private Drawable mSpeakerProgressDrawable;
    private Drawable mHeadphoneProgressThumb;
    private Drawable mSpeakerProgressThumb;
    private LightingColorFilter mRedFilter;

    private enum Device {
        headphone,
        speaker
    }

    public AudioOut(Context context, AttributeSet attrs) {
        super(context, attrs);

        MAX_VALUE = Integer.valueOf(context.getResources().getString(R.string.audioout_max_value));
        WARNING_THRESHOLD = Integer.valueOf(context.getResources().getString(R.string.audioout_warning_threshold));
        DEFAULT_VALUE = Integer.valueOf(context.getResources().getString(R.string.audioout_default_value));
        MIN_VALUE = Integer.valueOf(context.getResources().getString(R.string.audioout_min_value));

        setDialogLayoutResource(R.layout.preference_dialog_output_audio_tuning);
    }

    @Override
    protected void onPrepareDialogBuilder(AlertDialog.Builder builder) {
        builder.setNeutralButton(R.string.defaults_button, new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
            }
        });
    }

    @Override
    protected void onBindDialogView(View view) {
        super.onBindDialogView(view);

        mHeadphoneSeekBar = (SeekBar) view.findViewById(R.id.audioout_headphone_seekbar);
        mHeadphoneValue = (TextView) view.findViewById(R.id.audioout_headphone_value);
        mSpeakerSeekBar = (SeekBar) view.findViewById(R.id.audioout_speaker_seekbar);
        mSpeakerValue = (TextView) view.findViewById(R.id.audioout_speaker_value);
        mWarning = (TextView) view.findViewById(R.id.audioout_textWarn);

        String strWarnMsg = getContext().getResources().getString(R.string.audioout_warning, volumeToPercent(WARNING_THRESHOLD));
        mWarning.setText(strWarnMsg);

        Drawable progressDrawableHeadphone = mHeadphoneSeekBar.getProgressDrawable();
        if (progressDrawableHeadphone instanceof LayerDrawable) {
            LayerDrawable ldHeadphone = (LayerDrawable) progressDrawableHeadphone;
            mHeadphoneProgressDrawable = ldHeadphone.findDrawableByLayerId(android.R.id.progress);
        }
        Drawable progressDrawableSpeaker = mSpeakerSeekBar.getProgressDrawable();
        if (progressDrawableSpeaker instanceof LayerDrawable) {
            LayerDrawable ldSpeaker = (LayerDrawable) progressDrawableSpeaker;
            mSpeakerProgressDrawable = ldSpeaker.findDrawableByLayerId(android.R.id.progress);
        }

        mHeadphoneProgressThumb = mHeadphoneSeekBar.getThumb();
        mSpeakerProgressThumb = mSpeakerSeekBar.getThumb();

        mRedFilter = new LightingColorFilter(Color.BLACK,
                getContext().getResources().getColor(android.R.color.holo_red_light));

        mHeadphoneOgValue = Utils.readOneLine(AUDIOOUT_HEADPHONE_FILE);
        mHeadphoneOgPercent = volumeToPercent(Integer.parseInt(mHeadphoneOgValue));

        mHeadphoneSeekBar.setOnSeekBarChangeListener(this);
        mHeadphoneSeekBar.setProgress(Integer.valueOf(mHeadphoneOgPercent));

        mSpeakerOgValue = Utils.readOneLine(AUDIOOUT_SPEAKER_FILE);
        mSpeakerOgPercent = volumeToPercent(Integer.parseInt(mSpeakerOgValue));

        mSpeakerSeekBar.setOnSeekBarChangeListener(this);
        mSpeakerSeekBar.setProgress(Integer.valueOf(mSpeakerOgPercent));
    }

    @Override
    protected void showDialog(Bundle state) {
        super.showDialog(state);

        // can't use onPrepareDialogBuilder for this as we want the dialog
        // to be kept open on click
        AlertDialog d = (AlertDialog) getDialog();
        Button defaultsButton = d.getButton(DialogInterface.BUTTON_NEUTRAL);
        defaultsButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                mHeadphoneSeekBar.setProgress(volumeToPercent(DEFAULT_VALUE));
                mSpeakerSeekBar.setProgress(volumeToPercent(DEFAULT_VALUE));
            }
        });
    }

    @Override
    protected void onDialogClosed(boolean positiveResult) {
        super.onDialogClosed(positiveResult);
        int volumeHeadphone, volumeSpeaker;

        if (positiveResult) {
            Editor editor = getEditor();

            volumeHeadphone = percentToVolume(mHeadphoneSeekBar.getProgress());
            editor.putString(AUDIOOUT_HEADPHONE_FILE, String.valueOf(volumeHeadphone));
            volumeSpeaker = percentToVolume(mSpeakerSeekBar.getProgress());
            editor.putString(AUDIOOUT_SPEAKER_FILE, String.valueOf(volumeSpeaker));
            editor.commit();
        } else {
            Utils.writeValue(AUDIOOUT_HEADPHONE_FILE, String.valueOf(mHeadphoneOgValue));
            Utils.writeValue(AUDIOOUT_SPEAKER_FILE, String.valueOf(mSpeakerOgValue));
        }
    }

    public static void restore(Context context) {
        SharedPreferences sharedPrefs = PreferenceManager.getDefaultSharedPreferences(context);

        if (isSupported("headphone"))
            Utils.writeValue(AUDIOOUT_HEADPHONE_FILE, sharedPrefs.getString(AUDIOOUT_HEADPHONE_FILE, "50"));
        if (isSupported("speaker"))
            Utils.writeValue(AUDIOOUT_SPEAKER_FILE, sharedPrefs.getString(AUDIOOUT_SPEAKER_FILE, "50"));
    }

    public static boolean isSupported(String output) {
        String FILE = null;
        Device outputDevice = Device.valueOf(output);

        switch(outputDevice) {
            case headphone:
                FILE = AUDIOOUT_HEADPHONE_FILE;
            case speaker:
                FILE = AUDIOOUT_SPEAKER_FILE;
        }
        return Utils.fileExists(FILE);
    }

    @Override
    public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
        boolean shouldWarn = progress >= volumeToPercent(WARNING_THRESHOLD);
        int stepSize = 1;
        progress = Math.round(progress/stepSize)*stepSize;

        if(seekBar == mHeadphoneSeekBar){
            if (mHeadphoneProgressDrawable != null) {
                mHeadphoneProgressDrawable.setColorFilter(shouldWarn ? mRedFilter : null);
            }
            if (mHeadphoneProgressThumb != null) {
                mHeadphoneProgressThumb.setColorFilter(shouldWarn ? mRedFilter : null);
            }
            mHeadphoneSeekBar.setProgress(progress);
            Utils.writeValue(AUDIOOUT_HEADPHONE_FILE, String.valueOf(percentToVolume(progress)));
            mHeadphoneValue.setText(String.format("%d%%", progress));
        }else if(seekBar == mSpeakerSeekBar){
            if (mSpeakerProgressDrawable != null) {
                mSpeakerProgressDrawable.setColorFilter(shouldWarn ? mRedFilter : null);
            }
            if (mSpeakerProgressThumb != null) {
                mSpeakerProgressThumb.setColorFilter(shouldWarn ? mRedFilter : null);
            }
            mSpeakerSeekBar.setProgress(progress);
            Utils.writeValue(AUDIOOUT_SPEAKER_FILE, String.valueOf(percentToVolume(progress)));
            mSpeakerValue.setText(String.format("%d%%", progress));
        }
    }

    @Override
    public void onStartTrackingTouch(SeekBar seekBar) {
        // Do nothing
    }

    @Override
    public void onStopTrackingTouch(SeekBar seekBar) {
        //Vibrator vib = (Vibrator) getContext().getSystemService(Context.VIBRATOR_SERVICE);
        //vib.vibrate(200);
    }

    /**
    * Convert volume to percent
    */
    public static int volumeToPercent(int volume) {
        double maxValue = MAX_VALUE;
        double minValue = MIN_VALUE;

        double percent = Math.round((volume - minValue) * (100 / (maxValue - minValue)));

        if (percent > 100)
            percent = 100;
        else if (percent < 0)
            percent = 0;

        return (int) percent;
    }

    /**
    * Convert percent to volume
    */
    public static int percentToVolume(int percent) {
        int volume = Math.round((((MAX_VALUE - MIN_VALUE) * percent) / 100) + MIN_VALUE);

        if (volume > MAX_VALUE)
            volume = MAX_VALUE;
        else if (volume < MIN_VALUE)
            volume = MIN_VALUE;

        return volume;
    }
}