/** @file
* Copyright (C) 2005 John D Lamb (J.D.Lamb@btinternet.com)
* Copyright (C) 2007, 2008, 2011 John D Lamb (J.D.Lamb@btinternet.com)
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
package jscicalc.button;
import jscicalc.CalculatorApplet;
import jscicalc.pobject.Info;
/**
* Information button.
*
* @author J. D. Lamb
* @version $Revision: 1.18 $
*/
public class InfoButton extends CalculatorButton {
/**
* Constructor. Sets PObject to Info.
* @param applet The <em>controller</em> object.
*/
public InfoButton( CalculatorApplet applet ){
this.applet = applet;
pobject = new Info();
shortcut = pobject.shortcut();
tooltip = pobject.tooltip();
setToolTipText();
int size = applet.minSize();
if( size < 3 ) size = 3;
if( size > 9 ) size = 9;
StringBuilder s = new StringBuilder( "/jscicalc/icons/" );
s.append( Integer.toString( size ) );
s.append( "info.png" );
java.io.InputStream inputStream =
getClass().getResourceAsStream( s.toString() );
java.io.BufferedInputStream bufferedInputStream
= new java.io.BufferedInputStream( inputStream );
byte[] buffer = new byte[4096];
try {
bufferedInputStream.read( buffer, 0, 4096 );
} catch( Exception e ){
System.err.println( "Failed to read image." );
}
java.awt.Image image
= java.awt.Toolkit.getDefaultToolkit().createImage( buffer );
setIcon( new javax.swing.ImageIcon( image ) );
addActionListener( this );
}
/**
* Puts up a popup dialog showing a copyleft message.
* @param actionEvent The event that generated this method call: usually a button
* press or called when CalculatorApplet responded to the key associated with
* this button
*/
public void actionPerformed( java.awt.event.ActionEvent actionEvent ){
if( getApplet().getMode() != 0 )
return;
javax.swing.JOptionPane
.showMessageDialog( applet,
"<html>"
+ "Java Scientific Calculator "
+ version
+ ", http://jscicalc.sourceforge.net/"
+ "<br><br>"
+ "Copyright © 2004–5, 2007–8, 2011, "
+ "John D Lamb"
+ " <J.D.Lamb@btinternet.com><br>"
+ "This is free software; see the"
+ " source for copying "
+ "conditions. There is NO "
+ "warranty;<br>not even for"
+ " MERCHANTABILITY or FITNESS"
+ " FOR A PARTICULAR PURPOSE.</html>",
"About",
javax.swing.JOptionPane
.INFORMATION_MESSAGE );
getApplet().requestFocusInWindow();
}
/**
* Version string
*/
final static String version = "2:0.4";
private static final long serialVersionUID = 1L;
}