import android.content.Context;
import android.graphics.Color;
import android.preference.DialogPreference;
import android.util.AttributeSet;
import android.util.Log;
import android.view.View;

public class rgbaPreference extends DialogPreference {
  rgbaView rgbaValue;
  int      mColor = -1;

  public rgbaPreference(Context context, AttributeSet attrs, int defStyle) {
    super( context, attrs, defStyle );
    init( context, attrs );
  }

  public rgbaPreference(Context context, AttributeSet attrs) {
    super( context, attrs );
    init( context, attrs );
  }

  private void init( Context context, AttributeSet attrs ) {
  }

  public rgbaPreference(Context context) {
    this( context, null );
  }

  @Override
  protected View onCreateDialogView() {
    rgbaValue = new rgbaView( getContext(), null );
    rgbaValue.setEnabled( true );
    rgbaValue.setColor( mColor );
    rgbaValue.setAlphaSliderVisible( true );
    return rgbaValue;
  }

  @Override
  protected void onSetInitialValue( boolean restorePersistedValue,
      Object defaultValue ) {
    if ( defaultValue instanceof Integer ) {
      Integer intDefaultValue = (Integer)defaultValue;
      setColor( restorePersistedValue ? getPersistedInt( mColor )
          : intDefaultValue );
    } else {
      setColor( restorePersistedValue ? getPersistedInt( mColor ) : Color.WHITE );
    }
  }

  private void setColor( int color ) {
    mColor = color;
  }

  @Override
  protected void onDialogClosed( boolean positiveResult ) {
    super.onDialogClosed( positiveResult );
    if ( positiveResult ) {
      Integer value = new Integer( rgbaValue.getColor() );
      if ( callChangeListener( value ) ) {
        storeColor( value );
      }
    }

    Log.i( "rgbaPreference", "Colour: " + mColor );
  }

  public void storeColor( int color ) {
    mColor = color;
    final boolean wasBlocking = shouldDisableDependents();
    persistInt( color );
    final boolean isBlocking = shouldDisableDependents();
    if ( isBlocking != wasBlocking ) {
      notifyDependencyChange( isBlocking );
    }
  }
}