- 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.
- Since:
- 1.2
- See Also:
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Method Summary
Modifier and TypeMethodDescriptionvoid
Generally, indicate that this frame has focus.void
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 method is normally called when the user has indicated that they will begin resizing the frame.void
Generally, this call should remove the frame from its parent.void
Generally, indicate that this frame has lost focus.void
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
This method signals the end of the dragging session.void
This method signals the end of the resize session.void
Generally, remove this frame from its parent and add an iconic representation.void
Generally, the frame should be resized to match its parents bounds.void
Generally, this indicates that the frame should be restored to its size and position prior to a maximizeFrame() call.void
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.
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Method Details
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openFrame
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.- Parameters:
f
- theJInternalFrame
to be displayed
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closeFrame
Generally, this call should remove the frame from its parent.- Parameters:
f
- theJInternalFrame
to be removed
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maximizeFrame
Generally, the frame should be resized to match its parents bounds.- Parameters:
f
- theJInternalFrame
to be resized
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minimizeFrame
Generally, this indicates that the frame should be restored to its size and position prior to a maximizeFrame() call.- Parameters:
f
- theJInternalFrame
to be restored
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iconifyFrame
Generally, remove this frame from its parent and add an iconic representation.- Parameters:
f
- theJInternalFrame
to be iconified
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deiconifyFrame
Generally, remove any iconic representation that is present and restore the frame to it's original size and location.- Parameters:
f
- theJInternalFrame
to be de-iconified
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activateFrame
Generally, indicate that this frame has focus. This is usually called after the JInternalFrame's IS_SELECTED_PROPERTY has been set to true.- Parameters:
f
- theJInternalFrame
to be activated
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deactivateFrame
Generally, indicate that this frame has lost focus. This is usually called after the JInternalFrame's IS_SELECTED_PROPERTY has been set to false.- Parameters:
f
- theJInternalFrame
to be deactivated
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beginDraggingFrame
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.- Parameters:
f
- theJComponent
being dragged
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dragFrame
The user has moved the frame. Calls to this method will be preceded by calls to beginDraggingFrame(). Normally f will be a JInternalFrame.- Parameters:
f
- theJComponent
being draggednewX
- the new x-coordinatenewY
- the new y-coordinate
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endDraggingFrame
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.- Parameters:
f
- theJComponent
being dragged
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beginResizingFrame
This method 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.- Parameters:
f
- theJComponent
being resizeddirection
- the direction
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resizeFrame
The user has resized the component. Calls to this method will be preceded by calls to beginResizingFrame(). Normally f will be a JInternalFrame.- Parameters:
f
- theJComponent
being resizednewX
- the new x-coordinatenewY
- the new y-coordinatenewWidth
- the new widthnewHeight
- the new height
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endResizingFrame
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.- Parameters:
f
- theJComponent
being resized
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setBoundsForFrame
This is a primitive reshape method.- Parameters:
f
- theJComponent
being moved or resizednewX
- the new x-coordinatenewY
- the new y-coordinatenewWidth
- the new widthnewHeight
- the new height
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