CheckBoxedArrayAdapter.java

/*
 *  This file is part of Oekaki Mobile.
 *  Copyright (C) 2013 Jeremy Lam
 *  
 *  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 3 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, see <http://www.gnu.org/licenses/>.
 */

package idv.jlchntoz.oekakimobile;

import java.util.ArrayList;

import android.content.Context;
import android.content.res.Resources;
import android.view.*;
import android.view.View.OnTouchListener;
import android.widget.*;
import android.widget.CompoundButton.OnCheckedChangeListener;

public class CheckBoxedArrayAdapter extends
		ArrayAdapter<CheckBoxedArrayAdapter.ContentHolder> {
	private list entries;
	private int resource, checkBoxResourceId, textViewResourceId;
	private Context context;
	OnCheckChangedListener CheckListener;
	OnItemClickListener ClickListener;
	Resources res;

	public interface OnCheckChangedListener {
		public void OnCheckedChange(CompoundButton buttonView, int position,
				boolean isChecked);
	}

	public interface OnItemClickListener {
		public void OnItemClick(View view, int position);
	}

	@SuppressWarnings("serial")
	public final static class list extends ArrayList<ContentHolder> {
		public list() {
			super();
		}
	}

	public CheckBoxedArrayAdapter(Context context, int resource,
			int checkBoxResourceId, int textViewResourceId, list entries) {
		super(context, resource, textViewResourceId, entries);
		this.context = context;
		this.resource = resource;
		this.checkBoxResourceId = checkBoxResourceId;
		this.textViewResourceId = textViewResourceId;
		this.entries = entries;
		res = context.getResources();
	}

	@Override
	public View getView(final int position, View convertView, ViewGroup parent) {
		ViewHolder VH;
		if (convertView == null) {
			LayoutInflater VI = (LayoutInflater) context
					.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
			convertView = VI.inflate(resource, null);
			VH = new ViewHolder();
			VH.TVName = (TextView) convertView.findViewById(textViewResourceId);
			VH.Checker = (CheckBox) convertView.findViewById(checkBoxResourceId);
			convertView.setTag(VH);
		} else
			VH = (ViewHolder) convertView.getTag();
		final ContentHolder CH = entries.get(position);
		if (CH != null) {
			VH.TVName.setText(CH.name);
			VH.Checker.setChecked(CH.Checked);
			if (CheckListener != null)
				VH.Checker.setOnCheckedChangeListener(new OnCheckedChangeListener() {
					@Override
					public void onCheckedChanged(CompoundButton buttonView,
							boolean isChecked) {
						CheckListener.OnCheckedChange(buttonView, position, isChecked);
					}
				});
			if (CH.Selected)
				convertView.setBackgroundColor(res
						.getColor(android.R.color.darker_gray));
			else
				convertView.setBackgroundColor(res
						.getColor(android.R.color.transparent));
		}
		OnTouchListener OTL = new OnTouchListener() {
			@Override
			public boolean onTouch(View v, MotionEvent e) {
				switch (e.getAction()) {
				case MotionEvent.ACTION_DOWN:
					if (ClickListener != null)
						ClickListener.OnItemClick(v, position);
					break;
				}
				return false;
			}
		};
		convertView.setOnTouchListener(OTL);
		VH.TVName.setOnTouchListener(OTL);
		return convertView;
	}

	public void setOnCheckedChangeListener(OnCheckChangedListener listener) {
		CheckListener = listener;
	}

	public void setOnClickListener(OnItemClickListener listener) {
		ClickListener = listener;
	}

	public void add(String name, Boolean Checked, Boolean Selected) {
		super.add(new ContentHolder(name, Checked, Selected));
	}

	public void insert(String name, Boolean Checked, Boolean Selected, int index) {
		super.insert(new ContentHolder(name, Checked, Selected), index);
	}

	private class ViewHolder {
		public TextView TVName;
		public CheckBox Checker;
	}

	public class ContentHolder {
		public String name;
		public Boolean Checked;
		public Boolean Selected;

		public ContentHolder() {
			this("");
		}

		public ContentHolder(String name) {
			this(name, false);
		}

		public ContentHolder(String name, Boolean Checked) {
			this(name, Checked, false);
		}

		public ContentHolder(String name, Boolean Checked, Boolean Selected) {
			this.name = name;
			this.Checked = Checked;
			this.Selected = Selected;
		}
	}
}