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JavaTM 2 Platform Std. Ed. v1.6.0
javax.swing
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Nested Class Summary | |
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protected class |
JDesktopPane.AccessibleJDesktopPane
This class implements accessibility support for the JDesktopPane class. |
Nested classes/interfaces inherited from class javax.swing.JLayeredPane |
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JLayeredPane.AccessibleJLayeredPane |
Nested classes/interfaces inherited from class javax.swing.JComponent |
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JComponent.AccessibleJComponent |
Nested classes/interfaces inherited from class java.awt.Container |
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Container.AccessibleAWTContainer |
Nested classes/interfaces inherited from class java.awt.Component |
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Component.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategy |
Field Summary | |
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static int |
LIVE_DRAG_MODE
Indicates that the entire contents of the item being dragged should appear inside the desktop pane. |
static int |
OUTLINE_DRAG_MODE
Indicates that an outline only of the item being dragged should appear inside the desktop pane. |
Fields inherited from class javax.swing.JLayeredPane |
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DEFAULT_LAYER, DRAG_LAYER, FRAME_CONTENT_LAYER, LAYER_PROPERTY, MODAL_LAYER, PALETTE_LAYER, POPUP_LAYER |
Fields inherited from class javax.swing.JComponent |
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accessibleContext, listenerList, TOOL_TIP_TEXT_KEY, ui, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOW |
Fields inherited from class java.awt.Component |
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BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT |
Fields inherited from interface java.awt.image.ImageObserver |
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ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH |
Constructor Summary | |
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JDesktopPane()
Creates a new JDesktopPane . |
Method Summary | |
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protected void |
addImpl(Component comp,
Object constraints,
int index)
Adds the specified component to this container at the specified index. |
AccessibleContext |
getAccessibleContext()
Gets the AccessibleContext associated with this
JDesktopPane . |
JInternalFrame[] |
getAllFrames()
Returns all JInternalFrames currently displayed in the
desktop. |
JInternalFrame[] |
getAllFramesInLayer(int layer)
Returns all JInternalFrames currently displayed in the
specified layer of the desktop. |
DesktopManager |
getDesktopManager()
Returns the DesktopManger that handles
desktop-specific UI actions. |
int |
getDragMode()
Gets the current "dragging style" used by the desktop pane. |
JInternalFrame |
getSelectedFrame()
Returns the currently active JInternalFrame
in this JDesktopPane , or null
if no JInternalFrame is currently active. |
DesktopPaneUI |
getUI()
Returns the L&F object that renders this component. |
String |
getUIClassID()
Returns the name of the L&F class that renders this component. |
protected String |
paramString()
Returns a string representation of this JDesktopPane . |
void |
remove(int index)
Remove the indexed component from this pane. |
void |
removeAll()
Removes all the components from this container. |
JInternalFrame |
selectFrame(boolean forward)
Selects the next JInternalFrame in this desktop pane. |
void |
setComponentZOrder(Component comp,
int index)
Moves the specified component to the specified z-order index in the container. |
void |
setDesktopManager(DesktopManager d)
Sets the DesktopManger that will handle
desktop-specific UI actions. |
void |
setDragMode(int dragMode)
Sets the "dragging style" used by the desktop pane. |
void |
setSelectedFrame(JInternalFrame f)
Sets the currently active JInternalFrame
in this JDesktopPane . |
void |
setUI(DesktopPaneUI ui)
Sets the L&F object that renders this component. |
void |
updateUI()
Notification from the UIManager that the L&F has changed. |
Methods inherited from class javax.swing.JLayeredPane |
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getComponentCountInLayer, getComponentsInLayer, getComponentToLayer, getIndexOf, getLayer, getLayer, getLayeredPaneAbove, getObjectForLayer, getPosition, highestLayer, insertIndexForLayer, isOptimizedDrawingEnabled, lowestLayer, moveToBack, moveToFront, paint, putLayer, setLayer, setLayer, setPosition |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
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public static final int LIVE_DRAG_MODE
public static final int OUTLINE_DRAG_MODE
LIVE_DRAG_MODE
,
setDragMode(int)
,
Constant Field ValuesConstructor Detail |
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public JDesktopPane()
JDesktopPane
.
Method Detail |
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public DesktopPaneUI getUI()
DesktopPaneUI
object that
renders this componentpublic void setUI(DesktopPaneUI ui)
ui
- the DesktopPaneUI L&F objectUIDefaults.getUI(javax.swing.JComponent)
public void setDragMode(int dragMode)
dragMode
- the style of drag to use for items in the DesktopLIVE_DRAG_MODE
,
OUTLINE_DRAG_MODE
public int getDragMode()
Live_DRAG_MODE
or
OUTLINE_DRAG_MODE
setDragMode(int)
public DesktopManager getDesktopManager()
DesktopManger
that handles
desktop-specific UI actions.
public void setDesktopManager(DesktopManager d)
DesktopManger
that will handle
desktop-specific UI actions.
d
- the DesktopManager
to usepublic void updateUI()
UIManager
that the L&F has changed.
Replaces the current UI object with the latest version from the
UIManager
.
updateUI
in class JComponent
JComponent.updateUI()
public String getUIClassID()
getUIClassID
in class JComponent
JComponent.getUIClassID()
,
UIDefaults.getUI(javax.swing.JComponent)
public JInternalFrame[] getAllFrames()
JInternalFrames
currently displayed in the
desktop. Returns iconified frames as well as expanded frames.
JInternalFrame
objectspublic JInternalFrame getSelectedFrame()
JInternalFrame
in this JDesktopPane
, or null
if no JInternalFrame
is currently active.
JInternalFrame
or
null
public void setSelectedFrame(JInternalFrame f)
JInternalFrame
in this JDesktopPane
. This method is used to bridge
the package gap between JDesktopPane and the platform implementation
code and should not be called directly. To visually select the frame
the client must call JInternalFrame.setSelected(true) to activate
the frame.
f
- the internal frame that's currently selectedJInternalFrame.setSelected(boolean)
public JInternalFrame[] getAllFramesInLayer(int layer)
JInternalFrames
currently displayed in the
specified layer of the desktop. Returns iconified frames as well
expanded frames.
layer
- an int specifying the desktop layer
JInternalFrame
objectsJLayeredPane
public JInternalFrame selectFrame(boolean forward)
JInternalFrame
in this desktop pane.
forward
- a boolean indicating which direction to select in;
true
for forward, false
for
backward
null
if nothing was selectedprotected void addImpl(Component comp, Object constraints, int index)
addLayoutComponent
method.
The constraints are
defined by the particular layout manager being used. For
example, the BorderLayout
class defines five
constraints: BorderLayout.NORTH
,
BorderLayout.SOUTH
, BorderLayout.EAST
,
BorderLayout.WEST
, and BorderLayout.CENTER
.
The GridBagLayout
class requires a
GridBagConstraints
object. Failure to pass
the correct type of constraints object results in an
IllegalArgumentException
.
If the current layout manager implements LayoutManager2
, then
LayoutManager2.addLayoutComponent(Component,Object)
is invoked on
it. If the current layout manager does not implement
LayoutManager2
, and constraints is a String
, then
LayoutManager.addLayoutComponent(String,Component)
is invoked on it.
If the component is not an ancestor of this container and has a non-null parent, it is removed from its current parent before it is added to this container.
This is the method to override if a program needs to track every add request to a container as all other add methods defer to this one. An overriding method should usually include a call to the superclass's version of the method:
super.addImpl(comp, constraints, index)
addImpl
in class JLayeredPane
comp
- the component to be addedconstraints
- an object expressing layout constraints
for this componentindex
- the position in the container's list at which to
insert the component, where -1
means append to the endContainer.add(Component)
,
Container.add(Component, int)
,
Container.add(Component, java.lang.Object)
,
LayoutManager
,
LayoutManager2
public void remove(int index)
remove
in class JLayeredPane
index
- an int specifying the component to removeJLayeredPane.getIndexOf(java.awt.Component)
public void removeAll()
removeAll
in class JLayeredPane
Container.add(java.awt.Component)
,
Container.remove(int)
public void setComponentZOrder(Component comp, int index)
If the component is a child of some other container, it is
removed from that container before being added to this container.
The important difference between this method and
java.awt.Container.add(Component, int)
is that this method
doesn't call removeNotify
on the component while
removing it from its previous container unless necessary and when
allowed by the underlying native windowing system. This way, if the
component has the keyboard focus, it maintains the focus when
moved to the new position.
This property is guaranteed to apply only to lightweight
non-Container
components.
Note: Not all platforms support changing the z-order of
heavyweight components from one container into another without
the call to removeNotify
. There is no way to detect
whether a platform supports this, so developers shouldn't make
any assumptions.
setComponentZOrder
in class Container
comp
- the component to be movedindex
- the position in the container's list to
insert the component, where getComponentCount()
appends to the endContainer.getComponentZOrder(java.awt.Component)
protected String paramString()
JDesktopPane
.
This method is intended to be used only for debugging purposes, and the
content and format of the returned string may vary between
implementations. The returned string may be empty but may not
be null
.
paramString
in class JLayeredPane
JDesktopPane
public AccessibleContext getAccessibleContext()
AccessibleContext
associated with this
JDesktopPane
. For desktop panes, the
AccessibleContext
takes the form of an
AccessibleJDesktopPane
.
A new AccessibleJDesktopPane
instance is created if necessary.
getAccessibleContext
in interface Accessible
getAccessibleContext
in class JLayeredPane
AccessibleJDesktopPane
that serves as the
AccessibleContext
of this JDesktopPane