An.stop.fragments.ClockFragment.java Source code

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Here is the source code for An.stop.fragments.ClockFragment.java

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/***************************************************************************
 *   Copyright (C) 2009-2012 by mj <fakeacc.mj@gmail.com>,                *
 *                        Jeremy Monin <jeremy@nand.net>             *
 *                                                                      *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/

package An.stop.fragments;

import java.text.NumberFormat;

import An.stop.AnstopActivity;
import An.stop.Clock;
import An.stop.R;
import An.stop.util.Util;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.TextView;

/**
 * Abstract class which represents a Fragment played in the ViewPager from
 * {@link AnstopActivity}.
 * Handles basic things like starting and stopping the clock ({@link #clock},
 * and updating the labels ({@link #hoursView}, ...).
 */
public abstract class ClockFragment extends Fragment {

    private Handler updateHandler = new Handler() {

        @Override
        public void handleMessage(Message msg) {
            switch (msg.arg1) {
            case Clock.UPDATE_DECI_SECONDS:
                deciSecondsView.setText("" + msg.arg2);
                break;
            case Clock.UPDATE_SECONDS:
                secondsView.setText(nf.format(msg.arg2));
                break;
            case Clock.UPDATE_MINUTES:
                minutesView.setText(nf.format(msg.arg2));
                break;
            case Clock.UPDATE_HOURS:
                hoursView.setText("" + msg.arg2);
                break;
            }
        }
    };

    protected Clock clock;
    private int layoutId;

    private Button startButton;
    private Button resetButton;
    private TextView hoursView;
    private TextView minutesView;
    private TextView secondsView;
    private TextView deciSecondsView;

    private NumberFormat nf;

    /**
     * Initializes a new ClockFragment.
     * @param layoutId the layout which should be inflated
     * @param mode The mode the clock should have
     */
    ClockFragment(int layoutId, int mode) {
        clock = new Clock(mode, updateHandler);
        this.layoutId = layoutId;
        nf = Util.getTwoDigitFormat();
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        View view = inflater.inflate(layoutId, container, false);
        startButton = (Button) view.findViewById(R.id.start_button);
        resetButton = (Button) view.findViewById(R.id.reset_button);
        hoursView = (TextView) view.findViewById(R.id.hour_view);
        minutesView = (TextView) view.findViewById(R.id.min_view);
        secondsView = (TextView) view.findViewById(R.id.seconds_view);
        deciSecondsView = (TextView) view.findViewById(R.id.dseconds_view);

        startButton.setOnClickListener(new OnClickListener() {

            public void onClick(View v) {
                count();
            }

        });

        resetButton.setOnClickListener(new OnClickListener() {

            public void onClick(View v) {
                if (!clock.isActive())
                    reset();
            }
        });

        return view;
    }

    @Override
    public void onResume() {
        super.onResume();
        restoreState();
    }

    @Override
    public void onPause() {
        super.onPause();
        saveState();
    }

    /**
     * Saves the current state to the Preferences.
     * <br>
     * If you override this method be sure to call this method!
     * @see #restoreState()
     */
    protected void saveState() {
        clock.saveState(getActivity());
    }

    /**
     * Restores the previous state from the Preferences.
     * <br>
     * If you override this method be sure to call this method!
     * @see #saveState()
     */
    protected void restoreState() {
        clock.restoreState(getActivity());

        // make values visible to user
        int[] times = clock.getValues();

        setHours(times[0]);
        setMinutes(times[1]);
        setSeconds(times[2]);
        setDeciSeconds(times[3]);
    }

    /**
     * Starts counting if clock is not active
     * @see #clock
     * @see Clock#isActive()
     */
    protected void count() {
        if (!clock.isActive())
            clock.count();
        else
            clock.stop();
    }

    /**
     * Sets the text of deci seconds TextView to the specified value.
     * @param value
     */
    protected void setDeciSeconds(int value) {
        deciSecondsView.setText("" + value);
    }

    /**
     * Sets the text of seconds TextView to the specified value.
     * @param value
     */
    protected void setSeconds(int value) {
        secondsView.setText(nf.format(value));
    }

    /**
     * Sets the text of minutes TextView to the specified value.
     * @param value
     */
    protected void setMinutes(int value) {
        minutesView.setText(nf.format(value));
    }

    /**
     * Sets the text of hours TextView to the specified value.
     * @param value
     */
    protected void setHours(int value) {
        hoursView.setText("" + value);
    }

    /**
     * Resets the current time. This can be to zero or maybe to the time
     * which should be counted down!
     */
    protected abstract void reset();
}