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2010-06-01T04:57:42Z

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в 17:44, 31 мая 2010

2010-05-31T17:44:27Z

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== Adding Internal Frames to a JDesktopPane ==

<p>The JDesktopPane doesn"t implement RootPaneContainer.</p>



<source lang="java">
import java.awt.BorderLayout;
import javax.swing.JDesktopPane;
import javax.swing.JFrame;
import javax.swing.JInternalFrame;
import javax.swing.JLabel;
public class AddingInternalFramestoaJDesktopPane {
public static void main(final String[] args) {
JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JDesktopPane desktop = new JDesktopPane();
JInternalFrame internalFrame = new JInternalFrame("Can Do All", true, true, true, true);
desktop.add(internalFrame);
internalFrame.setBounds(25, 25, 200, 100);
JLabel label = new JLabel(internalFrame.getTitle(), JLabel.CENTER);
internalFrame.add(label, BorderLayout.CENTER);
internalFrame.setVisible(true);
frame.add(desktop, BorderLayout.CENTER);
frame.setSize(500, 300);
frame.setVisible(true);
}
}</source>



== Create a virtual desktop in your application ==



<source lang="java">
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JDesktopPane;
import javax.swing.JFrame;
import javax.swing.JInternalFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
public class Main extends JFrame {
public Main() {
JMenuBar bar = new JMenuBar();
JMenu addMenu = new JMenu("Add");
JMenuItem newFrame = new JMenuItem("Internal Frame");
addMenu.add(newFrame);
bar.add(addMenu);
setJMenuBar(bar);
final JDesktopPane theDesktop = new JDesktopPane();
getContentPane().add(theDesktop);
newFrame.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
JInternalFrame frame = new JInternalFrame("Internal Frame", true, true, true, true);
Container c = frame.getContentPane();
MyJPanel panel = new MyJPanel();
c.add(panel, BorderLayout.CENTER);
frame.setSize(200,200);
frame.setOpaque(true);
theDesktop.add(frame);
}
});
setSize(500, 400);
setVisible(true);
}
public static void main(String args[]) {
Main app = new Main();
}
}
class MyJPanel extends JPanel {
public MyJPanel() {
add(new JLabel("adf"));
}
}</source>



== Creating a JDesktopPane Container ==



<source lang="java">
import java.awt.BorderLayout;
import javax.swing.JDesktopPane;
import javax.swing.JFrame;
import javax.swing.JInternalFrame;
import javax.swing.JTextArea;
public class Main {
public static void main(String[] argv) throws Exception {
boolean resizable = true;
boolean closeable = true;
boolean maximizable = true;
boolean iconifiable = true;
String title = "Frame Title";
JInternalFrame iframe = new JInternalFrame(title, resizable, closeable, maximizable,
iconifiable);
iframe.setSize(300, 300);
iframe.setVisible(true);
iframe.getContentPane().add(new JTextArea());
JDesktopPane desktop = new JDesktopPane();
desktop.add(iframe);
JFrame frame = new JFrame();
frame.getContentPane().add(desktop, BorderLayout.CENTER);
frame.setSize(300, 300);
frame.setVisible(true);
}
}</source>



== Customizing a JDesktopPane Look and Feel ==

Property StringObject TypedesktopColorDesktop.ancestorInputMapInputMapDesktop.backgroundColorDesktop.windowBindingsObject[ ]DesktopPane.actionMapActionMapDesktopPaneUIString

== extends JDesktopPane implements Scrollable ==



<source lang="java">
import java.awt.Dimension;
import java.awt.Rectangle;
import javax.swing.JDesktopPane;
import javax.swing.JFrame;
import javax.swing.JInternalFrame;
import javax.swing.JLabel;
import javax.swing.JScrollPane;
import javax.swing.Scrollable;
class ScrollDesktop extends JDesktopPane implements Scrollable {
public Dimension getPreferredScrollableViewportSize() {
return getPreferredSize();
}
public int getScrollableUnitIncrement(Rectangle r, int axis, int dir) {
return 50;
}
public int getScrollableBlockIncrement(Rectangle r, int axis, int dir) {
return 200;
}
public boolean getScrollableTracksViewportWidth() {
return false;
}
public boolean getScrollableTracksViewportHeight() {
return false;
}
}
public class Main extends JFrame {
public Main() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JDesktopPane desk = new ScrollDesktop();
desk.setPreferredSize(new Dimension(1000, 1000));
getContentPane().add(new JScrollPane(desk), "Center");
JInternalFrame f1 = new JInternalFrame("Frame 1");
f1.getContentPane().add(new JLabel("This is frame f1"));
f1.setResizable(true);
f1.pack();
f1.setVisible(true);
desk.add(f1, new Integer(10));
JInternalFrame f2 = new JInternalFrame("Frame 2");
f2.getContentPane().add(new JLabel("Content for f2"));
f2.setResizable(true);
f2.pack();
f2.setVisible(true);
desk.add(f2, new Integer(20));
JInternalFrame f3 = new JInternalFrame("Frame 3");
f3.getContentPane().add(new JLabel("Content for f3"));
f3.setResizable(true);
f3.pack();
f3.setVisible(true);
desk.add(f3, new Integer(20));
f3.toFront();
try {
f3.setSelected(true);
} catch (java.beans.PropertyVetoException ignored) {
}
pack();
setSize(300, 300);
setVisible(true);
}
public static void main(String arg[]) {
new Main();
}
}</source>



== Getting All Frames in a JDesktopPane Container ==



<source lang="java">
import javax.swing.JDesktopPane;
import javax.swing.JInternalFrame;
public class Main {
public static void main(String[] argv) throws Exception {
JDesktopPane desktop = new JDesktopPane();
JInternalFrame[] frames = desktop.getAllFrames();
for (int i = 0; i < frames.length; i++) {
String title = frames[i].getTitle();
boolean isVisible = frames[i].isVisible();
boolean isCloseable = frames[i].isClosable();
boolean isResizeable = frames[i].isResizable();
boolean isIconifiable = frames[i].isIconifiable();
boolean isIcon = frames[i].isIcon();
boolean isMaximizable = frames[i].isMaximizable();
boolean isSelected = frames[i].isSelected();
}
}
}</source>



== JDesktopPane is a specialized JLayeredPane. ==

<p>The management of the frames within a desktop is the responsibility of a DesktopManager, in which the default implementation that"s provided is DefaultDesktopManager.</p>

== JDesktopPane.PALETTE_LAYER ==



<source lang="java">
import java.awt.BorderLayout;
import javax.swing.JDesktopPane;
import javax.swing.JFrame;
import javax.swing.JInternalFrame;

public class InternalFramePaletteSample {
public static void main(final String[] args) {
JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JDesktopPane desktop = new JDesktopPane();

JInternalFrame palette = new JInternalFrame("Palette", true, false, true, false);
palette.setBounds(350, 150, 100, 100);
palette.putClientProperty("JInternalFrame.isPalette", Boolean.TRUE);
desktop.add(palette, JDesktopPane.PALETTE_LAYER);
palette.setVisible(true);

frame.add(desktop, BorderLayout.CENTER);
frame.setSize(500, 300);
frame.setVisible(true);
}
}</source>

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Java Tutorial/Swing/JDesktopPane - История изменений

Admin: 1 версия

в 17:44, 31 мая 2010