DesktopManager (Java Platform SE 6)
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Java™ PlatformStandard Ed. 6
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javax.swing
Interface DesktopManager
All Known Implementing Classes: DefaultDesktopManager
public interface DesktopManager
DesktopManager objects are owned by a JDesktopPane object. They are responsible
for implementing L&F specific behaviors for the JDesktopPane. JInternalFrame
implementations should delegate specific behaviors to the DesktopManager. For
instance, if a JInternalFrame was asked to iconify, it should try:
getDesktopPane().getDesktopManager().iconifyFrame(frame);
This delegation allows each L&F to provide custom behaviors for desktop-specific
actions. (For example, how and where the internal frame's icon would appear.)
This class provides a policy for the various JInternalFrame methods, it is not
meant to be called directly rather the various JInternalFrame methods will call
into the DesktopManager.
See Also:JDesktopPane,
JInternalFrame,
JInternalFrame.JDesktopIcon
Method Summary
void
activateFrame(JInternalFrame f)
Generally, indicate that this frame has focus.
void
beginDraggingFrame(JComponent f)
This method is normally called when the user has indicated that
they will begin dragging a component around.
void
beginResizingFrame(JComponent f,
int direction)
This methods is normally called when the user has indicated that
they will begin resizing the frame.
void
closeFrame(JInternalFrame f)
Generally, this call should remove the frame from it's parent.
void
deactivateFrame(JInternalFrame f)
Generally, indicate that this frame has lost focus.
void
deiconifyFrame(JInternalFrame f)
Generally, remove any iconic representation that is present and restore the
frame to it's original size and location.
void
dragFrame(JComponent f,
int newX,
int newY)
The user has moved the frame.
void
endDraggingFrame(JComponent f)
This method signals the end of the dragging session.
void
endResizingFrame(JComponent f)
This method signals the end of the resize session.
void
iconifyFrame(JInternalFrame f)
Generally, remove this frame from it's parent and add an iconic representation.
void
maximizeFrame(JInternalFrame f)
Generally, the frame should be resized to match it's parents bounds.
void
minimizeFrame(JInternalFrame f)
Generally, this indicates that the frame should be restored to it's
size and position prior to a maximizeFrame() call.
void
openFrame(JInternalFrame f)
If possible, display this frame in an appropriate location.
void
resizeFrame(JComponent f,
int newX,
int newY,
int newWidth,
int newHeight)
The user has resized the component.
void
setBoundsForFrame(JComponent f,
int newX,
int newY,
int newWidth,
int newHeight)
This is a primitive reshape method.
Method Detail
openFrame
void openFrame(JInternalFrame f)
If possible, display this frame in an appropriate location.
Normally, this is not called, as the creator of the JInternalFrame
will add the frame to the appropriate parent.
closeFrame
void closeFrame(JInternalFrame f)
Generally, this call should remove the frame from it's parent.
maximizeFrame
void maximizeFrame(JInternalFrame f)
Generally, the frame should be resized to match it's parents bounds.
minimizeFrame
void minimizeFrame(JInternalFrame f)
Generally, this indicates that the frame should be restored to it's
size and position prior to a maximizeFrame() call.
iconifyFrame
void iconifyFrame(JInternalFrame f)
Generally, remove this frame from it's parent and add an iconic representation.
deiconifyFrame
void deiconifyFrame(JInternalFrame f)
Generally, remove any iconic representation that is present and restore the
frame to it's original size and location.
activateFrame
void activateFrame(JInternalFrame f)
Generally, indicate that this frame has focus. This is usually called after
the JInternalFrame's IS_SELECTED_PROPERTY has been set to true.
deactivateFrame
void deactivateFrame(JInternalFrame f)
Generally, indicate that this frame has lost focus. This is usually called
after the JInternalFrame's IS_SELECTED_PROPERTY has been set to false.
beginDraggingFrame
void beginDraggingFrame(JComponent f)
This method is normally called when the user has indicated that
they will begin dragging a component around. This method should be called
prior to any dragFrame() calls to allow the DesktopManager to prepare any
necessary state. Normally f will be a JInternalFrame.
dragFrame
void dragFrame(JComponent f,
int newX,
int newY)
The user has moved the frame. Calls to this method will be preceded by calls
to beginDraggingFrame().
Normally f will be a JInternalFrame.
endDraggingFrame
void endDraggingFrame(JComponent f)
This method signals the end of the dragging session. Any state maintained by
the DesktopManager can be removed here. Normally f will be a JInternalFrame.
beginResizingFrame
void beginResizingFrame(JComponent f,
int direction)
This methods is normally called when the user has indicated that
they will begin resizing the frame. This method should be called
prior to any resizeFrame() calls to allow the DesktopManager to prepare any
necessary state. Normally f will be a JInternalFrame.
resizeFrame
void resizeFrame(JComponent f,
int newX,
int newY,
int newWidth,
int newHeight)
The user has resized the component. Calls to this method will be preceded by calls
to beginResizingFrame().
Normally f will be a JInternalFrame.
endResizingFrame
void endResizingFrame(JComponent f)
This method signals the end of the resize session. Any state maintained by
the DesktopManager can be removed here. Normally f will be a JInternalFrame.
setBoundsForFrame
void setBoundsForFrame(JComponent f,
int newX,
int newY,
int newWidth,
int newHeight)
This is a primitive reshape method.
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Java™ PlatformStandard Ed. 6
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Submit a bug or featureFor further API reference and developer documentation, see Java SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples. Copyright 2009 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.
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