DimensionsInputDialog.java

import javax.swing.JOptionPane;
import java.awt.Component;
import java.util.Arrays;
public class DimensionsInputDialog
{
 static int[] showDialog(Component parent){
 return showDialog(parent, "Please imput dimensions"+UsefulStrings.getLineSeparator()+"Input should be of the form # of cells in the X coordinate,# of cells in the Y coordinate.", "30,30");
 }
 
 static int[] showDialogWithMessage(Component parent, String message){
 return showDialog(parent, message, "30,30");
 }
 
 static int[] showDialog(Component parent, String defaultValue){
 return showDialogWithDefault(parent, defaultValue);
 }
 
 static int[] showDialogWithDefault(Component parent, String defaultValue){
 return showDialog(parent, "Please imput dimensions"+UsefulStrings.getLineSeparator()+"Input should be of the form # of cells in the X coordinate,# of cells in the Y coordinate.", defaultValue);
 }
 
 static int[] showDialog(Component parent, String message, String defaultValue){
 String d = JOptionPane.showInputDialog(message, defaultValue);
 if(d==null) return null;
 String[] dimensions = d.split(",");
 int[] rVal = null;
 try{
 rVal = new int[]{new Integer(dimensions[0]),new Integer(dimensions[1])};
 }catch(NumberFormatException nfe){
 System.err.println(Arrays.toString(dimensions)+" is not a valid input");
 rVal = DimensionsInputDialog.showDialog(parent, message, defaultValue);
 }
 if(rVal.length!=2){
 System.err.println(Arrays.toString(dimensions)+" is not the right length");
 rVal = DimensionsInputDialog.showDialog(parent, message, defaultValue);
 }
 if(!(rVal[0]>0&&rVal[1]>0)){
 System.err.println(Arrays.toString(dimensions)+" is out of bounds (too small)");
 rVal = DimensionsInputDialog.showDialog(parent, message, defaultValue);
 }
 return rVal;
 }
}