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package james.dsp.preference;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.os.IBinder;
import android.preference.DialogPreference;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import james.dsp.R;
import james.dsp.service.HeadsetService;
import java.util.Locale;
public class EqualizerPreference extends DialogPreference
{
private EqualizerSurface mListEqualizer, mDialogEqualizer;
private HeadsetService mHeadsetService;
private final ServiceConnection connectionForDialog = new ServiceConnection()
{
@Override
public void onServiceConnected(ComponentName name, IBinder binder)
{
mHeadsetService = ((HeadsetService.LocalBinder) binder).getService();
updateDspFromDialogEqualizer();
}
@Override
public void onServiceDisconnected(ComponentName name)
{
mHeadsetService = null;
}
};
public EqualizerPreference(Context context, AttributeSet attributeSet)
{
super(context, attributeSet);
setLayoutResource(R.layout.equalizer);
setDialogLayoutResource(R.layout.equalizer_popup);
}
private void updateDspFromDialogEqualizer()
{
if (mHeadsetService != null)
{
float[] levels = new float[15];
for (int i = 0; i < levels.length; i++)
levels[i] = mDialogEqualizer.getBand(i);
mHeadsetService.setEqualizerLevels(levels);
}
}
private void updateListEqualizerFromValue()
{
String value = getPersistedString(null);
if (value != null && mListEqualizer != null)
{
String[] levelsStr = value.split(";");
for (int i = 0; i < 15; i++)
mListEqualizer.setBand(i, Float.valueOf(levelsStr[i]));
}
}
@Override
protected void onBindDialogView(View view)
{
super.onBindDialogView(view);
mDialogEqualizer = view.findViewById(R.id.FrequencyResponse);
mDialogEqualizer.setOnTouchListener(new OnTouchListener()
{
@Override
public boolean onTouch(View v, MotionEvent event)
{
float x = event.getX();
float y = event.getY();
/* Which band is closest to the position user pressed? */
int band = mDialogEqualizer.findClosest(x);
int wy = v.getHeight();
float level = (y / wy) * (EqualizerSurface.MIN_DB - EqualizerSurface.MAX_DB) - EqualizerSurface.MIN_DB;
if (level < EqualizerSurface.MIN_DB)
level = EqualizerSurface.MIN_DB;
if (level > EqualizerSurface.MAX_DB)
level = EqualizerSurface.MAX_DB;
mDialogEqualizer.setBand(band, level);
updateDspFromDialogEqualizer();
return true;
}
});
if (mListEqualizer != null)
{
for (int i = 0; i < 15; i++)
mDialogEqualizer.setBand(i, mListEqualizer.getBand(i));
}
getContext().bindService(new Intent(getContext(), HeadsetService.class), connectionForDialog, 0);
}
@Override
protected void onDialogClosed(boolean positiveResult)
{
if (positiveResult)
{
StringBuilder value = new StringBuilder();
for (int i = 0; i < 15; i++)
value.append(String.format(Locale.ROOT, "%.7f", mDialogEqualizer.getBand(i))).append(";");
persistString(value.toString());
updateListEqualizerFromValue();
}
if (mHeadsetService != null)
mHeadsetService.setEqualizerLevels(null);
getContext().unbindService(connectionForDialog);
}
@Override
protected void onBindView(View view)
{
super.onBindView(view);
mListEqualizer = view.findViewById(R.id.FrequencyResponse);
updateListEqualizerFromValue();
}
@Override
protected void onSetInitialValue(boolean restorePersistedValue, Object defaultValue)
{
String value = restorePersistedValue ? getPersistedString(null) : (String) defaultValue;
if (shouldPersist())
persistString(value);
}
public void refreshFromPreference()
{
onSetInitialValue(true, null);
}
}
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