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BasicTableUI (Java 2 Platform SE v1.4.1) - JDK 5 Documentation v1.4.1, Java 2 SDK 英文文档

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javax.swing.plaf.basic
Class BasicTableUI

java.lang.Object
  |
  +--javax.swing.plaf.ComponentUI
        |
        +--javax.swing.plaf.TableUI
              |
              +--javax.swing.plaf.basic.BasicTableUI

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public class BasicTableUI

extends TableUI

BasicTableUI implementation

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Nested Class Summary
class	BasicTableUI.FocusHandler           This inner class is marked "public" due to a compiler bug.
class	BasicTableUI.KeyHandler           This inner class is marked "public" due to a compiler bug.
class	BasicTableUI.MouseInputHandler           This inner class is marked "public" due to a compiler bug.

 

Field Summary
protected  FocusListener	focusListener
protected  KeyListener	keyListener
protected  MouseInputListener	mouseInputListener
protected  CellRendererPane	rendererPane
protected  JTable	table

 

Constructor Summary

BasicTableUI()

 

Method Summary
protected  FocusListener	createFocusListener()           Creates the focus listener for handling keyboard navigation in the JTable.
protected  KeyListener	createKeyListener()           Creates the key listener for handling keyboard navigation in the JTable.
protected  MouseInputListener	createMouseInputListener()           Creates the mouse listener for the JTable.
static ComponentUI	createUI(JComponent c)           Returns an instance of the UI delegate for the specified component.
Dimension	getMaximumSize(JComponent c)           Return the maximum size of the table.
Dimension	getMinimumSize(JComponent c)           Return the minimum size of the table.
Dimension	getPreferredSize(JComponent c)           Return the preferred size of the table.
protected  void	installDefaults()           Initialize JTable properties, e.g.
protected  void	installKeyboardActions()           Register all keyboard actions on the JTable.
protected  void	installListeners()           Attaches listeners to the JTable.
void	installUI(JComponent c)           Configures the specified component appropriate for the look and feel.
void	paint(Graphics g, JComponent c)           Paint a representation of the table instance that was set in installUI().
protected  void	uninstallDefaults()
protected  void	uninstallKeyboardActions()
protected  void	uninstallListeners()
void	uninstallUI(JComponent c)           Reverses configuration which was done on the specified component during installUI.

 

Methods inherited from class javax.swing.plaf.ComponentUI

contains, getAccessibleChild, getAccessibleChildrenCount, update

 

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Field Detail

table

protected JTable table

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rendererPane

protected CellRendererPane rendererPane

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keyListener

protected KeyListener keyListener

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focusListener

protected FocusListener focusListener

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mouseInputListener

protected MouseInputListener mouseInputListener

Constructor Detail

BasicTableUI

public BasicTableUI()

Method Detail

createKeyListener

protected KeyListener createKeyListener()

Creates the key listener for handling keyboard navigation in the JTable.

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createFocusListener

protected FocusListener createFocusListener()

Creates the focus listener for handling keyboard navigation in the JTable.

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createMouseInputListener

protected MouseInputListener createMouseInputListener()

Creates the mouse listener for the JTable.

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createUI

public static ComponentUI createUI(JComponent c)

Description copied from class: ComponentUI

Returns an instance of the UI delegate for the specified component. Each subclass must provide its own static createUI method that returns an instance of that UI delegate subclass. If the UI delegate subclass is stateless, it may return an instance that is shared by multiple components. If the UI delegate is stateful, then it should return a new instance per component. The default implementation of this method throws an error, as it should never be invoked.

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installUI

public void installUI(JComponent c)

Description copied from class: ComponentUI

Configures the specified component appropriate for the look and feel. This method is invoked when the ComponentUI instance is being installed as the UI delegate on the specified component. This method should completely configure the component for the look and feel, including the following:

1. Install any default property values for color, fonts, borders, icons, opacity, etc. on the component. Whenever possible, property values initialized by the client program should not be overridden.
2. Install a LayoutManager on the component if necessary.
3. Create/add any required sub-components to the component.
4. Create/install event listeners on the component.
5. Create/install a PropertyChangeListener on the component in order to detect and respond to component property changes appropriately.
6. Install keyboard UI (mnemonics, traversal, etc.) on the component.
7. Initialize any appropriate instance data.

Overrides:

installUI in class ComponentUI

Parameters:

c - the component where this UI delegate is being installed

See Also:

ComponentUI.uninstallUI(javax.swing.JComponent), JComponent.setUI(javax.swing.plaf.ComponentUI), JComponent.updateUI()

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installDefaults

protected void installDefaults()

Initialize JTable properties, e.g. font, foreground, and background. The font, foreground, and background properties are only set if their current value is either null or a UIResource, other properties are set if the current value is null.

See Also:

installUI(javax.swing.JComponent)

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installListeners

protected void installListeners()

Attaches listeners to the JTable.

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installKeyboardActions

protected void installKeyboardActions()

Register all keyboard actions on the JTable.

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uninstallUI

public void uninstallUI(JComponent c)

Description copied from class: ComponentUI

Reverses configuration which was done on the specified component during installUI. This method is invoked when this UIComponent instance is being removed as the UI delegate for the specified component. This method should undo the configuration performed in installUI, being careful to leave the JComponent instance in a clean state (no extraneous listeners, look-and-feel-specific property objects, etc.). This should include the following:

1. Remove any UI-set borders from the component.
2. Remove any UI-set layout managers on the component.
3. Remove any UI-added sub-components from the component.
4. Remove any UI-added event/property listeners from the component.
5. Remove any UI-installed keyboard UI from the component.
6. Nullify any allocated instance data objects to allow for GC.

Overrides:

uninstallUI in class ComponentUI

Parameters:

c - the component from which this UI delegate is being removed; this argument is often ignored, but might be used if the UI object is stateless and shared by multiple components

See Also:

ComponentUI.installUI(javax.swing.JComponent), JComponent.updateUI()

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uninstallDefaults

protected void uninstallDefaults()

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uninstallListeners

protected void uninstallListeners()

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uninstallKeyboardActions

protected void uninstallKeyboardActions()

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getMinimumSize

public Dimension getMinimumSize(JComponent c)

Return the minimum size of the table. The minimum height is the row height times the number of rows. The minimum width is the sum of the minimum widths of each column.

Overrides:

getMinimumSize in class ComponentUI

Parameters:

c - the component whose minimum size is being queried; this argument is often ignored, but might be used if the UI object is stateless and shared by multiple components

Returns:

a Dimension object or null

See Also:

JComponent.getMinimumSize(), LayoutManager.minimumLayoutSize(java.awt.Container), ComponentUI.getPreferredSize(javax.swing.JComponent)

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getPreferredSize

public Dimension getPreferredSize(JComponent c)

Return the preferred size of the table. The preferred height is the row height times the number of rows. The preferred width is the sum of the preferred widths of each column.

Overrides:

getPreferredSize in class ComponentUI

Parameters:

c - the component whose preferred size is being queried; this argument is often ignored, but might be used if the UI object is stateless and shared by multiple components

See Also:

JComponent.getPreferredSize(), LayoutManager.preferredLayoutSize(java.awt.Container)

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getMaximumSize

public Dimension getMaximumSize(JComponent c)

Return the maximum size of the table. The maximum height is the row heighttimes the number of rows. The maximum width is the sum of the maximum widths of each column.

Overrides:

getMaximumSize in class ComponentUI

Parameters:

c - the component whose maximum size is being queried; this argument is often ignored, but might be used if the UI object is stateless and shared by multiple components

Returns:

a Dimension object or null

See Also:

JComponent.getMaximumSize(), LayoutManager2.maximumLayoutSize(java.awt.Container)

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paint

public void paint(Graphics g,
                  JComponent c)

Paint a representation of the table instance that was set in installUI().

Overrides:

paint in class ComponentUI

Parameters:

g - the Graphics context in which to paint

c - the component being painted; this argument is often ignored, but might be used if the UI object is stateless and shared by multiple components

See Also:

ComponentUI.update(java.awt.Graphics, javax.swing.JComponent)

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

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