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/*
* $Id: FullScreenWindow.java,v 1.3 2007/12/20 18:33:33 rbair Exp $
*
* Copyright 2004 Sun Microsystems, Inc., 4150 Network Circle,
* Santa Clara, California 95054, U.S.A. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
package com.sun.pdfview;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.DisplayMode;
import java.awt.GraphicsConfiguration;
import java.awt.GraphicsDevice;
import java.awt.GraphicsEnvironment;
import java.awt.Rectangle;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JFrame;
/**
* A window that takes over the full screen. You can put exactly one
* JComponent into the window. If there are multiple screens attached
* to the computer, this class will display buttons on each screen so
* that the user can select which one receives the full-screen window.
*/
public class FullScreenWindow
{
/**
* The screen that the user last chose for displaying a
* FullScreenWindow
*/
private static GraphicsDevice defaultScreen;
/** The current screen for the FullScreenWindow */
private GraphicsDevice screen;
/** The JFrame filling the screen */
private JFrame jf;
/**
* Whether this FullScreenWindow has been used. Each FullScreenWindow
* can only be displayed once.
*/
private boolean dead= false;
/**
* Create a full screen window containing a JComponent, and ask the
* user which screen they'd like to use if more than one is present.
* @param part the JComponent to display
* @param forcechoice true if you want force the display of the screen
* choice buttons. If false, buttons will only display if the user
* hasn't previously picked a screen.
*/
public FullScreenWindow(JComponent part, boolean forcechoice) {
// super();
init(part, forcechoice);
}
/**
* Create a full screen window containing a JComponent. The user
* will only be asked which screen to display on if there are multiple
* monitors attached and the user hasn't already made a choice.
* @param part the JComponent to display
*/
public FullScreenWindow(JComponent part) {
// super();
init(part, false);
}
/**
* Close the full screen window. This particular FullScreenWindow
* object cannot be used again.
*/
public void close() {
dead= true;
flag.set();
screen.setFullScreenWindow(null);
if (jf!=null) {
jf.dispose();
}
}
/**
* Create the window, asking for which screen to use if there are
* multiple monitors and either forcechoice is true, or the user
* hasn't already picked a screen.
* @param part the JComponent to display
* @param forcechoice false if user shouldn't be asked twice which
* of several monitors to use.
*/
private void init(JComponent part, boolean forcechoice) {
if (forcechoice) {
defaultScreen= null;
}
screen= null;
GraphicsEnvironment ge=
GraphicsEnvironment.getLocalGraphicsEnvironment();
GraphicsDevice screens[]= ge.getScreenDevices();
if (defaultScreen!=null) {
for (int i=0; i<screens.length; i++) {
if (screens[i]== defaultScreen) {
screen= defaultScreen;
}
}
}
if (screens.length==1) {
screen= screens[0];
}
if (screen==null) {
screen= pickScreen(screens);
}
if (dead) {
return;
}
defaultScreen= screen;
DisplayMode dm= screen.getDisplayMode();
GraphicsConfiguration gc= screen.getDefaultConfiguration();
jf= new JFrame(gc);
jf.setUndecorated(true);
jf.setBounds(gc.getBounds());
jf.getContentPane().add(part);
jf.show();
screen.setFullScreenWindow(jf);
}
/**
* A button that appears on a particular graphics device, asking
* whether that device should be used for multiple-monitor choices.
*/
class PickMe extends JFrame {
GraphicsDevice mygd;
/**
* Creates the PickMe button on a particular display.
* @param gd the GraphicsDevice (display) to use for this button
*/
public PickMe(GraphicsDevice gd) {
super(gd.getDefaultConfiguration());
// super((java.awt.Frame)null, false);
setUndecorated(true);
mygd= gd;
JButton jb= new JButton("Click here to use this screen");
jb.setBackground(Color.yellow);
jb.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
pickDevice(mygd);
}
});
Dimension sz= jb.getPreferredSize();
sz.width+= 30;
sz.height= 200;
jb.setPreferredSize(sz);
getContentPane().add(jb);
pack();
Rectangle bounds= gd.getDefaultConfiguration().getBounds();
int x= bounds.width/2-sz.width/2+bounds.x;
int y= bounds.height/2-sz.height/2+bounds.y;
// System.out.println("Opening picker at "+x+","+y);
setLocation(x,y);
show();
}
}
/**
* Flag indicating whether the user has selected a screen or not.
*/
private Flag flag= new Flag();
private GraphicsDevice pickedDevice;
/**
* Select a particular screen for display of this window, and set
* the flag.
*/
private void pickDevice(GraphicsDevice gd) {
pickedDevice= gd;
flag.set();
}
/**
* Displays a button on each attached monitor, and returns the
* GraphicsDevice object associated with that monitor.
* @param scrns a list of GraphicsDevices on which to display buttons
* @return the GraphicsDevice selected.
*/
private GraphicsDevice pickScreen(GraphicsDevice scrns[]) {
flag.clear();
int count=0;
PickMe pickers[]= new PickMe[scrns.length];
for (int i=0; i<scrns.length; i++) {
if (scrns[i].isFullScreenSupported()) {
count++;
}
pickers[i]= new PickMe(scrns[i]);
}
flag.waitForFlag();
for (int i=0; i<pickers.length; i++) {
if (pickers[i]!=null) {
pickers[i].dispose();
}
}
return pickedDevice;
}
}
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