JDice.java

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.*;
import java.io.*;

/*
JDice: Java Dice Rolling Program
Copyright (C) 2006 Andrew D. Hilton  (adhilton@cis.upenn.edu)


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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

 */
public class JDice {
    static final String CLEAR="Clear";
    static final String ROLL="Roll Selection";
    static void showError(String s) {
    }
    private static class JDiceListener implements ActionListener {
	Vector<String> listItems;
	JList resultList;
	JComboBox inputBox;
	long lastEvent; /* hack to prevent double events with text
			   entry */
	public JDiceListener(JList resultList,
			     JComboBox inputBox){

	    this.listItems=new Vector<String>();
	    this.resultList=resultList;
	    this.inputBox=inputBox;
	    lastEvent=0;
	}
	public void actionPerformed(ActionEvent e) {

	    if(e.getWhen()==lastEvent)
		return;
	    lastEvent=e.getWhen();
	    if(e.getSource() instanceof JComboBox ||
	       e.getActionCommand().equals(ROLL)) {
		String s=inputBox.getSelectedItem().toString();
		String[] arr=s.split("=");
		String name="";
		for(int i=0;i<arr.length-2;i++) {
		    name=arr[i]+"=";
		}
		if(arr.length>=2)
		    name=name+arr[arr.length-2];
		doRoll(name,arr[arr.length-1]);
	    }
	    else if(e.getActionCommand().equals(CLEAR)){ 
		doClear();
	    }
	    else {
		doRoll(null,e.getActionCommand());
	    }
	}
	private void doClear(){
	    resultList.clearSelection();
	    listItems.clear();
	    resultList.setListData(listItems);
	}
	private void doRoll(String name,
			    String diceString) {
	    String prepend="";
	    int start=0;
	    int i;
	    Vector<DieRoll> v=DiceParser.parseRoll(diceString);
	    if(v==null) {
		showError("Invalid dice string" +diceString);
		return;
	    }
	    if(name!=null) {
		listItems.add(0,name);
		start=1;
		prepend="  ";
	    }
	    int[] selectionIndices=new int[start+v.size()];
	    for(i=0;i<v.size();i++) {
		DieRoll dr=v.get(i);
		RollResult rr=dr.makeRoll();
		String toAdd=prepend+dr+"  =>  "+rr;
		listItems.add(i+start,toAdd);
	    }
	    for(i=0;i<selectionIndices.length;i++) {
		selectionIndices[i]=i;
	    }
	    System.out.println("dog, duck, hipop, monkey");
	    resultList.setSelectedIndices(selectionIndices);
		listItems.add(i+start,toAdd);
		public String toString() {
			return total +"  <= " +rolls.toString()+ 
				(modifier>0?("+"+modifier):
				 modifier<0?modifier:"");
		}
			}
		public static void main(String[] args) {
			
		}
	}
    }
    
    public static void main(String[] args) {
	Vector<String> v=new Vector<String>();
	if(args.length>=1) {
	    try {
		BufferedReader br=new BufferedReader(new FileReader(args[0]));
		String s;
		while((s=br.readLine())!=null) {
		    v.add(s);
		}
	    }
	    catch(IOException ioe){
		ioe.printStackTrace();
		System.err.println("***********\n**********\n");
		System.err.println("Could not read input file: "+args[0]);
		System.err.println("***********\n**********\n");
	    }
	}
	JFrame jf=new JFrame("Dice Roller");
	Container c=jf.getContentPane();
	c.setLayout(new BorderLayout());
	JList jl=new JList();
	c.add(jl,BorderLayout.CENTER);
	JComboBox jcb=new JComboBox(v);
	jcb.setEditable(true);
	c.add(jcb,BorderLayout.NORTH);
	JDiceListener jdl=new JDiceListener(jl,jcb);
	jcb.addActionListener(jdl);
	JPanel rightSide=new JPanel();
	rightSide.setLayout(new BoxLayout(rightSide,
					  BoxLayout.Y_AXIS));
	String[] buttons={ROLL,
			  "d4",
			  "d6",
			  "d8",
			  "d10",
			  "d12",
			  "d20",
			  "d100",
			  CLEAR};
	for(int i=0;i<buttons.length;i++) {
	    JButton newButton=new JButton(buttons[i]);
	    rightSide.add(newButton);
	    newButton.addActionListener(jdl);
	}
	c.add(rightSide,BorderLayout.EAST);
	jf.setSize(450,500);
	jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	jf.setVisible(true);
    }
}