FileDocCategorySizeDatePackage
ToeTest.javaAPI DocExample5109Mon Apr 06 18:10:22 BST 1998None

ToeTest.java

//: ToeTest.java
//////////////////////////////////////////////////
// Copyright (c) Bruce Eckel, 1998
// Source code file from the book "Thinking in Java"
// All rights reserved EXCEPT as allowed by the
// following statements: You can freely use this file
// for your own work (personal or commercial),
// including modifications and distribution in
// executable form only. Permission is granted to use
// this file in classroom situations, including its
// use in presentation materials, as long as the book
// "Thinking in Java" is cited as the source. 
// Except in classroom situations, you cannot copy
// and distribute this code; instead, the sole
// distribution point is http://www.BruceEckel.com 
// (and official mirror sites) where it is
// freely available. You cannot remove this
// copyright and notice. You cannot distribute
// modified versions of the source code in this
// package. You cannot use this file in printed
// media without the express permission of the
// author. Bruce Eckel makes no representation about
// the suitability of this software for any purpose.
// It is provided "as is" without express or implied
// warranty of any kind, including any implied
// warranty of merchantability, fitness for a
// particular purpose or non-infringement. The entire
// risk as to the quality and performance of the
// software is with you. Bruce Eckel and the
// publisher shall not be liable for any damages
// suffered by you or any third party as a result of
// using or distributing software. In no event will
// Bruce Eckel or the publisher be liable for any
// lost revenue, profit, or data, or for direct,
// indirect, special, consequential, incidental, or
// punitive damages, however caused and regardless of
// the theory of liability, arising out of the use of
// or inability to use software, even if Bruce Eckel
// and the publisher have been advised of the
// possibility of such damages. Should the software
// prove defective, you assume the cost of all
// necessary servicing, repair, or correction. If you
// think you've found an error, please email all
// modified files with clearly commented changes to:
// Bruce@EckelObjects.com. (Please use the same
// address for non-code errors found in the book.)
/////////////////////////////////////////////////

// Demonstration of dialog boxes
// and creating your own components
import java.awt.*;

class ToeButton extends Canvas {
  int state = ToeDialog.BLANK;
  ToeDialog parent;
  ToeButton(ToeDialog parent) {
    this.parent = parent;
  }
  public void paint(Graphics  g) {
    int x1 = 0;
    int y1 = 0;
    int x2 = size().width - 1;
    int y2 = size().height - 1;
    g.drawRect(x1, y1, x2, y2);
    x1 = x2/4;
    y1 = y2/4;
    int wide = x2/2;
    int high = y2/2;
    if(state == ToeDialog.XX) {
      g.drawLine(x1, y1, x1 + wide, y1 + high);
      g.drawLine(x1, y1 + high, x1 + wide, y1);
    }
    if(state == ToeDialog.OO) {
      g.drawOval(x1, y1, x1+wide/2, y1+high/2);
    }
  }
  public boolean 
  mouseDown(Event evt, int x, int y) {
    if(state == ToeDialog.BLANK) {
      state = parent.turn;
      parent.turn= (parent.turn == ToeDialog.XX ?
        ToeDialog.OO : ToeDialog.XX);
    } 
    else
      state = (state == ToeDialog.XX ? 
        ToeDialog.OO : ToeDialog.XX);
    repaint();
    return true;
  }
}

class ToeDialog extends Dialog {
  // w = number of cells wide
  // h = number of cells high
  static final int BLANK = 0;
  static final int XX = 1;
  static final int OO = 2;
  int turn = XX; // Start with x's turn
  public ToeDialog(Frame parent, int w, int h) {
    super(parent, "The game itself", false);
    setLayout(new GridLayout(w, h));
    for(int i = 0; i < w * h; i++)
      add(new ToeButton(this));
    resize(w * 50, h * 50);
  }
  public boolean handleEvent(Event evt) {
    if(evt.id == Event.WINDOW_DESTROY) 
      dispose();
    else 
      return super.handleEvent(evt);
    return true;
  }
}

public class ToeTest extends Frame {
  TextField rows = new TextField("3");
  TextField cols = new TextField("3");
  public ToeTest() {
    setTitle("Toe Test");
    Panel p = new Panel();
    p.setLayout(new GridLayout(2,2));
    p.add(new Label("Rows", Label.CENTER));
    p.add(rows);
    p.add(new Label("Columns", Label.CENTER));
    p.add(cols);
    add("North", p);
    add("South", new Button("go"));
  }
  public boolean handleEvent(Event evt) {
    if(evt.id == Event.WINDOW_DESTROY) 
      System.exit(0);
    else 
      return super.handleEvent(evt);
    return true;
  }
  public boolean action(Event evt, Object arg) {
    if(arg.equals("go")) {
      Dialog d = new ToeDialog(
        this, 
        Integer.parseInt(rows.getText()),
        Integer.parseInt(cols.getText()));
      d.show();
    } 
    else 
      return super.action(evt, arg);
    return true;
  }
  public static void main(String[] args) {
    Frame f = new ToeTest();
    f.resize(200,100);
    f.show();
  }
} ///:~