PrintPanel is the base for an open-ended series of classes : Print « 2D Graphics GUI « Java
PrintPanel is the base for an open-ended series of classes
/*
* Copyright (c) Ian F. Darwin, http://www.darwinsys.com/, 1996-2002.
* All rights reserved. Software written by Ian F. Darwin and others.
* $Id: LICENSE,v 1.8 2004/02/09 03:33:38 ian Exp $
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* Java, the Duke mascot, and all variants of Sun's Java "steaming coffee
* cup" logo are trademarks of Sun Microsystems. Sun's, and James Gosling's,
* pioneering role in inventing and promulgating (and standardizing) the Java
* language and environment is gratefully acknowledged.
*
* The pioneering role of Dennis Ritchie and Bjarne Stroustrup, of AT&T, for
* inventing predecessor languages C and C++ is also gratefully acknowledged.
*/
import java.awt.BorderLayout;
import java.awt.Button;
import java.awt.CardLayout;
import java.awt.Checkbox;
import java.awt.Choice;
import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.Frame;
import java.awt.GridLayout;
import java.awt.Label;
import java.awt.Panel;
import java.awt.TextField;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
/**
* PrintPanel is the base for an open-ended series of classes that implement
* printing of one type. We provide two examples to start: First prints a phone
* book, second prints labels, etc. To add more, for example a Mail List/Form
* Letter Merge, define a class for it below and insert in the "add" loop in the
* main constructor.
*/
abstract class PrintPanel extends Panel {
/** Returns the string to use in a Choice to display this panel */
public abstract String getChoice();
/** Print the data in the format for this type of printout */
public abstract void doPrint();
}
/**
* PhonesPanel extends PrintPanel to provide the UI for printing a user's phone
* book.
*/
class PhonesPanel extends PrintPanel {
PhonesPanel() {
super();
setBackground(Color.red);
setLayout(new FlowLayout());
add(new Label("Tab markers at edge of page?"));
add(new Checkbox());
add(new Label("Each letter starts page?"));
add(new Checkbox());
}
public String getChoice() {
return "Phone Book";
}
public void doPrint() {
// code here to print Phone book
}
}
/**
* LabelsPanel extends PrintPanel to provide the UI for printing name and
* address labels
*/
class LabelsPanel extends PrintPanel {
LabelsPanel() {
super();
setBackground(Color.green);
setLayout(new GridLayout(3, 2));
add(new Label("Left Offset:"));
add(new TextField(5));
add(new Label("Rows:"));
add(new TextField(5));
add(new Label("Cols:"));
add(new TextField(5));
}
public String getChoice() {
return "Labels";
}
public void doPrint() {
// code here to print Labels
}
}
/**
* CardLayDemo2 -- Prototype of a Print Dialog for JabaDex
*
* @author Ian F. Darwin
* @version 0.0, September, 1996
*/
public class CardLayDemo2 extends Frame {
PrintPanel[] pps = new PrintPanel[2];
private int runType = 0;
private Choice runTypeChoice;
private Panel tp, mainP, bp; // top, middle, bottom.
CardLayout cardlay;
private Button printButton, sampleButton, cancelButton;
/** Construct a Print dialog. */
CardLayDemo2(String title) {
super(title);
// Top panel (tp) has choices for labels/phonebook/etc.
// and paper size.
// Middle panel (mainP, managed by CardLayout) is details
// for either Labels or Phonebook
// Shows either a PhonesPanel or a LabelsPanel or ...
// Bottom panel (bp) has Print/Preview/Cancel buttons.
tp = new Panel();
tp.setLayout(new FlowLayout());
mainP = new Panel();
mainP.setLayout(cardlay = new CardLayout());
tp.add(runTypeChoice = new Choice());
runTypeChoice.addItemListener(new ItemListener() {
public void itemStateChanged(ItemEvent e) {
runType = runTypeChoice.getSelectedIndex();
cardlay.show(mainP, pps[runType].getChoice());
}
});
/* create one instance of each PrintPanel type. */
pps[0] = new PhonesPanel();
pps[1] = new LabelsPanel();
/* Add each print type to the choice and to mainP */
for (int i = 0; i < pps.length; i++) {
runTypeChoice.add(pps[i].getChoice());
mainP.add(pps[i].getChoice(), pps[i]);
}
cardlay.show(mainP, pps[runType].getChoice());
// Bottom has a Panel with push buttons
bp = new Panel();
bp.setLayout(new FlowLayout());
bp.add(printButton = new Button("Print"));
printButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
doPrint(true);
setVisible(false);
System.exit(0);
}
});
bp.add(sampleButton = new Button("Print Sample"));
sampleButton.setEnabled(false);
bp.add(cancelButton = new Button("Cancel"));
cancelButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
System.out.println("Printing canceled");
setVisible(false);
System.exit(0);
}
});
setLayout(new BorderLayout());
add(tp, BorderLayout.NORTH);
add(mainP, BorderLayout.CENTER);
add(bp, BorderLayout.SOUTH);
pack();
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
// If windowClosing() does setVisible and dispose,
// then the close action completes
setVisible(false);
dispose();
System.exit(0);
}
});
}
/** Print the current list. */
protected void doPrint(boolean toRealDevice) {
// open a PrintStream to the printer device to file on disk.
// PrintStream pf = ...
// call the appropriate doPrint()
// pps[runType].doPrint(pf);
System.err.println("Print completed");
}
public static void main(String[] args) {
// Generate some data...
// ...
// pop up the print dialog to print it
(new CardLayDemo2("Print Tester")).setVisible(true);
}
}
