mirror of git://gcc.gnu.org/git/gcc.git
387 lines
11 KiB
Java
387 lines
11 KiB
Java
/* JDesktopPane.java --
|
|
Copyright (C) 2002, 2004 Free Software Foundation, Inc.
|
|
|
|
This file is part of GNU Classpath.
|
|
|
|
GNU Classpath 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, or (at your option)
|
|
any later version.
|
|
|
|
GNU Classpath 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 GNU Classpath; see the file COPYING. If not, write to the
|
|
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
|
|
02110-1301 USA.
|
|
|
|
Linking this library statically or dynamically with other modules is
|
|
making a combined work based on this library. Thus, the terms and
|
|
conditions of the GNU General Public License cover the whole
|
|
combination.
|
|
|
|
As a special exception, the copyright holders of this library give you
|
|
permission to link this library with independent modules to produce an
|
|
executable, regardless of the license terms of these independent
|
|
modules, and to copy and distribute the resulting executable under
|
|
terms of your choice, provided that you also meet, for each linked
|
|
independent module, the terms and conditions of the license of that
|
|
module. An independent module is a module which is not derived from
|
|
or based on this library. If you modify this library, you may extend
|
|
this exception to your version of the library, but you are not
|
|
obligated to do so. If you do not wish to do so, delete this
|
|
exception statement from your version. */
|
|
|
|
|
|
package javax.swing;
|
|
|
|
import gnu.java.lang.CPStringBuilder;
|
|
|
|
import java.awt.Component;
|
|
import java.beans.PropertyVetoException;
|
|
|
|
import javax.accessibility.Accessible;
|
|
import javax.accessibility.AccessibleContext;
|
|
import javax.accessibility.AccessibleRole;
|
|
import javax.swing.plaf.DesktopPaneUI;
|
|
|
|
/**
|
|
* JDesktopPane is a container (usually for JInternalFrames) that simulates a
|
|
* desktop. Typically, the user will create JInternalFrames and place them in
|
|
* a JDesktopPane. The user can then interact with JInternalFrames like they
|
|
* usually would with JFrames. The actions (minimize, maximize, close, etc)
|
|
* are done by using a DesktopManager that is associated with the
|
|
* JDesktopPane.
|
|
*/
|
|
public class JDesktopPane extends JLayeredPane implements Accessible
|
|
{
|
|
private static final long serialVersionUID = 766333777224038726L;
|
|
|
|
/**
|
|
* This specifies that when dragged, a JInternalFrame should be completely
|
|
* visible.
|
|
*
|
|
* @specnote final since 1.5.0.
|
|
*/
|
|
public static final int LIVE_DRAG_MODE = 0;
|
|
|
|
/**
|
|
* This specifies that when dragged, a JInternalFrame should only be visible
|
|
* as an outline.
|
|
*
|
|
* @specnote final since 1.5.0.
|
|
*/
|
|
public static final int OUTLINE_DRAG_MODE = 1;
|
|
|
|
/** The selected frame in the JDesktopPane. */
|
|
private transient JInternalFrame selectedFrame;
|
|
|
|
/** The JDesktopManager to use for acting on JInternalFrames. */
|
|
transient DesktopManager desktopManager;
|
|
|
|
/** The drag mode used by the JDesktopPane. */
|
|
private transient int dragMode = LIVE_DRAG_MODE;
|
|
|
|
/**
|
|
* Indicates if the dragMode property has been set by a client
|
|
* program or by the UI.
|
|
*
|
|
* @see #setUIProperty(String, Object)
|
|
* @see LookAndFeel#installProperty(JComponent, String, Object)
|
|
*/
|
|
private boolean clientDragModeSet = false;
|
|
|
|
/**
|
|
* Provides the accessibility features for the <code>JDesktopPane</code>
|
|
* component.
|
|
*/
|
|
protected class AccessibleJDesktopPane extends AccessibleJComponent
|
|
{
|
|
private static final long serialVersionUID = 6079388927946077570L;
|
|
|
|
/**
|
|
* Creates a new <code>AccessibleJDesktopPane</code> instance.
|
|
*/
|
|
protected AccessibleJDesktopPane()
|
|
{
|
|
// Nothing to do here.
|
|
}
|
|
|
|
/**
|
|
* Returns the accessible role for the <code>JSlider</code> component.
|
|
*
|
|
* @return {@link AccessibleRole#DESKTOP_PANE}.
|
|
*/
|
|
public AccessibleRole getAccessibleRole()
|
|
{
|
|
return AccessibleRole.DESKTOP_PANE;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Creates a new JDesktopPane object.
|
|
*/
|
|
public JDesktopPane()
|
|
{
|
|
setLayout(null);
|
|
updateUI();
|
|
}
|
|
|
|
/**
|
|
* This method returns the UI used with the JDesktopPane.
|
|
*
|
|
* @return The UI used with the JDesktopPane.
|
|
*/
|
|
public DesktopPaneUI getUI()
|
|
{
|
|
return (DesktopPaneUI) ui;
|
|
}
|
|
|
|
/**
|
|
* This method sets the UI used with the JDesktopPane.
|
|
*
|
|
* @param ui The UI to use with the JDesktopPane.
|
|
*/
|
|
public void setUI(DesktopPaneUI ui)
|
|
{
|
|
super.setUI(ui);
|
|
}
|
|
|
|
/**
|
|
* This method sets the drag mode to use with the JDesktopPane.
|
|
*
|
|
* @param mode The drag mode to use.
|
|
*
|
|
* @throws IllegalArgumentException If the drag mode given is not
|
|
* LIVE_DRAG_MODE or OUTLINE_DRAG_MODE.
|
|
*/
|
|
public void setDragMode(int mode)
|
|
{
|
|
if ((mode != LIVE_DRAG_MODE) && (mode != OUTLINE_DRAG_MODE))
|
|
throw new IllegalArgumentException("Drag mode not valid.");
|
|
|
|
clientDragModeSet = true;
|
|
|
|
// FIXME: Unsupported mode.
|
|
if (mode == OUTLINE_DRAG_MODE)
|
|
// throw new IllegalArgumentException("Outline drag modes are
|
|
// unsupported.");
|
|
mode = LIVE_DRAG_MODE;
|
|
|
|
dragMode = mode;
|
|
}
|
|
|
|
/**
|
|
* This method returns the drag mode used with the JDesktopPane.
|
|
*
|
|
* @return The drag mode used with the JDesktopPane.
|
|
*/
|
|
public int getDragMode()
|
|
{
|
|
return dragMode;
|
|
}
|
|
|
|
/**
|
|
* This method returns the DesktopManager used with the JDesktopPane.
|
|
*
|
|
* @return The DesktopManager to use with the JDesktopPane.
|
|
*/
|
|
public DesktopManager getDesktopManager()
|
|
{
|
|
return desktopManager;
|
|
}
|
|
|
|
/**
|
|
* This method sets the DesktopManager to use with the JDesktopPane.
|
|
*
|
|
* @param manager The DesktopManager to use with the JDesktopPane.
|
|
*/
|
|
public void setDesktopManager(DesktopManager manager)
|
|
{
|
|
desktopManager = manager;
|
|
}
|
|
|
|
/**
|
|
* This method restores the UI used with the JDesktopPane to the default.
|
|
*/
|
|
public void updateUI()
|
|
{
|
|
setUI((DesktopPaneUI) UIManager.getUI(this));
|
|
}
|
|
|
|
/**
|
|
* This method returns a String identifier that allows the UIManager to know
|
|
* which class will act as JDesktopPane's UI.
|
|
*
|
|
* @return A String identifier for the UI class to use.
|
|
*/
|
|
public String getUIClassID()
|
|
{
|
|
return "DesktopPaneUI";
|
|
}
|
|
|
|
/**
|
|
* This method returns all JInternalFrames that are in the JDesktopPane.
|
|
*
|
|
* @return All JInternalFrames that are in the JDesktopPane.
|
|
*/
|
|
public JInternalFrame[] getAllFrames()
|
|
{
|
|
return getFramesFromComponents(getComponents());
|
|
}
|
|
|
|
/**
|
|
* This method returns the currently selected frame in the JDesktopPane.
|
|
*
|
|
* @return The currently selected frame in the JDesktopPane.
|
|
*/
|
|
public JInternalFrame getSelectedFrame()
|
|
{
|
|
return selectedFrame;
|
|
}
|
|
|
|
/**
|
|
* This method sets the selected frame in the JDesktopPane.
|
|
*
|
|
* @param frame The selected frame in the JDesktopPane.
|
|
*/
|
|
public void setSelectedFrame(JInternalFrame frame)
|
|
{
|
|
if (selectedFrame != null)
|
|
{
|
|
try
|
|
{
|
|
selectedFrame.setSelected(false);
|
|
}
|
|
catch (PropertyVetoException e)
|
|
{
|
|
// We do nothing when the attempt is vetoed.
|
|
}
|
|
}
|
|
selectedFrame = null;
|
|
|
|
try
|
|
{
|
|
if (frame != null)
|
|
frame.setSelected(true);
|
|
|
|
selectedFrame = frame;
|
|
}
|
|
catch (PropertyVetoException e)
|
|
{
|
|
// We do nothing when the attempt is vetoed.
|
|
}
|
|
}
|
|
|
|
/**
|
|
* This method returns all the JInternalFrames in the given layer.
|
|
*
|
|
* @param layer The layer to grab frames in.
|
|
*
|
|
* @return All JInternalFrames in the given layer.
|
|
*/
|
|
public JInternalFrame[] getAllFramesInLayer(int layer)
|
|
{
|
|
return getFramesFromComponents(getComponentsInLayer(layer));
|
|
}
|
|
|
|
/**
|
|
* This method always returns true to indicate that it is not transparent.
|
|
*
|
|
* @return true.
|
|
*/
|
|
public boolean isOpaque()
|
|
{
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Returns an implementation-dependent string describing the attributes of
|
|
* this <code>JDesktopPane</code>.
|
|
*
|
|
* @return A string describing the attributes of this <code>JDesktopPane</code>
|
|
* (never <code>null</code>).
|
|
*/
|
|
protected String paramString()
|
|
{
|
|
String superParamStr = super.paramString();
|
|
CPStringBuilder sb = new CPStringBuilder();
|
|
sb.append(",isOptimizedDrawingPossible=");
|
|
sb.append(isOptimizedDrawingEnabled());
|
|
sb.append(",desktopManager=");
|
|
if (desktopManager != null)
|
|
sb.append(desktopManager);
|
|
return superParamStr + sb.toString();
|
|
}
|
|
|
|
/**
|
|
* This method returns all the JInternalFrames in the given Component array.
|
|
*
|
|
* @param components An array to search for JInternalFrames in.
|
|
*
|
|
* @return An array of JInternalFrames found in the Component array.
|
|
*/
|
|
private static JInternalFrame[] getFramesFromComponents(Component[] components)
|
|
{
|
|
int count = 0;
|
|
|
|
for (int i = 0; i < components.length; i++)
|
|
if (components[i] instanceof JInternalFrame)
|
|
count++;
|
|
|
|
JInternalFrame[] value = new JInternalFrame[count];
|
|
for (int i = 0, j = 0; i < components.length && j != count; i++)
|
|
if (components[i] instanceof JInternalFrame)
|
|
value[j++] = (JInternalFrame) components[i];
|
|
return value;
|
|
}
|
|
|
|
/**
|
|
* Returns the object that provides accessibility features for this
|
|
* <code>JDesktopPane</code> component.
|
|
*
|
|
* @return The accessible context (an instance of
|
|
* {@link AccessibleJDesktopPane}).
|
|
*/
|
|
public AccessibleContext getAccessibleContext()
|
|
{
|
|
if (accessibleContext == null)
|
|
accessibleContext = new AccessibleJDesktopPane();
|
|
|
|
return accessibleContext;
|
|
}
|
|
|
|
/**
|
|
* Helper method for
|
|
* {@link LookAndFeel#installProperty(JComponent, String, Object)}.
|
|
*
|
|
* @param propertyName the name of the property
|
|
* @param value the value of the property
|
|
*
|
|
* @throws IllegalArgumentException if the specified property cannot be set
|
|
* by this method
|
|
* @throws ClassCastException if the property value does not match the
|
|
* property type
|
|
* @throws NullPointerException if <code>c</code> or
|
|
* <code>propertyValue</code> is <code>null</code>
|
|
*/
|
|
void setUIProperty(String propertyName, Object value)
|
|
{
|
|
if (propertyName.equals("dragMode"))
|
|
{
|
|
if (! clientDragModeSet)
|
|
{
|
|
setDragMode(((Integer) value).intValue());
|
|
clientDragModeSet = false;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
super.setUIProperty(propertyName, value);
|
|
}
|
|
}
|
|
}
|