package nl.rigault.colormix.view;

import java.util.Observable;
import java.util.Observer;

import nl.rigault.colormix.R;
import nl.rigault.colormix.model.ColorModel;

import android.content.Context;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.widget.LinearLayout;
import android.widget.SeekBar;

public class RGBSeekBarView extends LinearLayout implements Observer {

    protected ColorModel model;
    private SeekBar r, g, b;

    public RGBSeekBarView(Context context) {
        super(context);
        init();
    }

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

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

    private void init() {
        LayoutInflater  inflater = (LayoutInflater) getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        inflater.inflate(R.layout.rgbseekbar, this);

        r = (SeekBar) findViewById(R.id.seekBar1);
        g = (SeekBar) findViewById(R.id.seekBar2);
        b = (SeekBar) findViewById(R.id.seekBar3);

        SeekBarChangeListener listener = new SeekBarChangeListener();

        r.setOnSeekBarChangeListener(listener);
        g.setOnSeekBarChangeListener(listener);
        b.setOnSeekBarChangeListener(listener);

        model = ColorModel.getInstance();
        model.addObserver(this);

    }

    @Override
    public void update(Observable observable, Object data) {
        r.setProgress(model.getR());
        g.setProgress(model.getG());
        b.setProgress(model.getB());

    }

    private class SeekBarChangeListener implements SeekBar.OnSeekBarChangeListener {

        @Override
        public void onProgressChanged(SeekBar seekBar, int progress,
                boolean fromUser) {

            if (!fromUser) {
                return;
            }

            if (seekBar == r) {
                model.setR(progress);
            }
            else if (seekBar == g) {
                model.setG(progress);
            }
            else {
                model.setB(progress);
            }


        }

        @Override
        public void onStartTrackingTouch(SeekBar seekBar) {
            // TODO Auto-generated method stub

        }

        @Override
        public void onStopTrackingTouch(SeekBar seekBar) {
            // TODO Auto-generated method stub

        }

    }
}