//: 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();
}
} ///:~ |