java.lang.Object
- javax.swing.plaf.ComponentUI
- - javax.swing.plaf.ButtonUI
  - - javax.swing.plaf.basic.BasicButtonUI

Direct Known Subclasses:

BasicToggleButtonUI, MetalButtonUI, SynthButtonUI
```
public class BasicButtonUI
extends ButtonUI
```
BasicButton implementation

Field Summary

Fields
Modifier and Type Field and Description

protected int defaultTextIconGap

protected int defaultTextShiftOffset

Eerste pagina van API Java Inhoudsopgave Haut

Constructor Summary

Constructors
Constructor and Description

BasicButtonUI()

Eerste pagina van API Java Inhoudsopgave Haut

Method Summary

Methods
Modifier and Type	Method and Description
`protected void`	`clearTextShiftOffset()`
`protected BasicButtonListener`	`createButtonListener(AbstractButton b)`
`static ComponentUI`	`createUI(JComponent c)`
`int`	`getBaseline(JComponent c, int width, int height)` Returns the baseline.
`Component.BaselineResizeBehavior`	`getBaselineResizeBehavior(JComponent c)` Returns an enum indicating how the baseline of the component changes as the size changes.
`int`	`getDefaultTextIconGap(AbstractButton b)`
`Dimension`	`getMaximumSize(JComponent c)` Returns the specified component's maximum size appropriate for the look and feel.
`Dimension`	`getMinimumSize(JComponent c)` Returns the specified component's minimum size appropriate for the look and feel.
`Dimension`	`getPreferredSize(JComponent c)` Returns the specified component's preferred size appropriate for the look and feel.
`protected String`	`getPropertyPrefix()`
`protected int`	`getTextShiftOffset()`
`protected void`	`installDefaults(AbstractButton b)`
`protected void`	`installKeyboardActions(AbstractButton b)`
`protected void`	`installListeners(AbstractButton b)`
`void`	`installUI(JComponent c)` Configures the specified component appropriately for the look and feel.
`void`	`paint(Graphics g, JComponent c)` Paints the specified component appropriately for the look and feel.
`protected void`	`paintButtonPressed(Graphics g, AbstractButton b)`
`protected void`	`paintFocus(Graphics g, AbstractButton b, Rectangle viewRect, Rectangle textRect, Rectangle iconRect)`
`protected void`	`paintIcon(Graphics g, JComponent c, Rectangle iconRect)`
`protected void`	`paintText(Graphics g, AbstractButton b, Rectangle textRect, String text)` Method which renders the text of the current button.
`protected void`	`paintText(Graphics g, JComponent c, Rectangle textRect, String text)` As of Java 2 platform v 1.4 this method should not be used or overriden.
`protected void`	`setTextShiftOffset()`
`protected void`	`uninstallDefaults(AbstractButton b)`
`protected void`	`uninstallKeyboardActions(AbstractButton b)`
`protected void`	`uninstallListeners(AbstractButton b)`
`void`	`uninstallUI(JComponent c)` Reverses configuration which was done on the specified component during `installUI`.

Eerste pagina van API Java Inhoudsopgave Haut

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
  - defaultTextIconGap
```
protected int defaultTextIconGap
```
  - defaultTextShiftOffset
```
protected int defaultTextShiftOffset
```
- Constructor Detail
  - BasicButtonUI
```
public BasicButtonUI()
```
- Method Detail
  - createUI
```
public static ComponentUI createUI(JComponent c)
```
  - getPropertyPrefix
```
protected String getPropertyPrefix()
```
  - installUI
```
public void installUI(JComponent c)
```
    Description copied from class: ComponentUI
    Configures the specified component appropriately 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 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()
  - installDefaults
```
protected void installDefaults(AbstractButton b)
```
  - installListeners
```
protected void installListeners(AbstractButton b)
```
  - installKeyboardActions
```
protected void installKeyboardActions(AbstractButton b)
```
  - 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()
  - uninstallKeyboardActions
```
protected void uninstallKeyboardActions(AbstractButton b)
```
  - uninstallListeners
```
protected void uninstallListeners(AbstractButton b)
```
  - uninstallDefaults
```
protected void uninstallDefaults(AbstractButton b)
```
  - createButtonListener
```
protected BasicButtonListener createButtonListener(AbstractButton b)
```
  - getDefaultTextIconGap
```
public int getDefaultTextIconGap(AbstractButton b)
```
  - paint
```
public void paint(Graphics g,
         JComponent c)
```
    Description copied from class: ComponentUI
    
    Paints the specified component appropriately for the look and feel. This method is invoked from the ComponentUI.update method when the specified component is being painted. Subclasses should override this method and use the specified Graphics object to render the content of the component.
    
    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)
  - paintIcon
```
protected void paintIcon(Graphics g,
             JComponent c,
             Rectangle iconRect)
```
  - paintText
```
protected void paintText(Graphics g,
             JComponent c,
             Rectangle textRect,
             String text)
```
    As of Java 2 platform v 1.4 this method should not be used or overriden. Use the paintText method which takes the AbstractButton argument.
  - paintText
```
protected void paintText(Graphics g,
             AbstractButton b,
             Rectangle textRect,
             String text)
```
    Method which renders the text of the current button.
    
    Parameters:
    g - Graphics context
    b - Current button to render
    textRect - Bounding rectangle to render the text.
    text - String to render
    Since:
    
    1.4
  - paintFocus
```
protected void paintFocus(Graphics g,
              AbstractButton b,
              Rectangle viewRect,
              Rectangle textRect,
              Rectangle iconRect)
```
  - paintButtonPressed
```
protected void paintButtonPressed(Graphics g,
                      AbstractButton b)
```
  - clearTextShiftOffset
```
protected void clearTextShiftOffset()
```
  - setTextShiftOffset
```
protected void setTextShiftOffset()
```
  - getTextShiftOffset
```
protected int getTextShiftOffset()
```
  - getMinimumSize
```
public Dimension getMinimumSize(JComponent c)
```
    Description copied from class: ComponentUI
    
    Returns the specified component's minimum size appropriate for the look and feel. If null is returned, the minimum size will be calculated by the component's layout manager instead (this is the preferred approach for any component with a specific layout manager installed). The default implementation of this method invokes getPreferredSize and returns that value.
    
    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)
  - getPreferredSize
```
public Dimension getPreferredSize(JComponent c)
```
    Description copied from class: ComponentUI
    
    Returns the specified component's preferred size appropriate for the look and feel. If null is returned, the preferred size will be calculated by the component's layout manager instead (this is the preferred approach for any component with a specific layout manager installed). The default implementation of this method returns null.
    
    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)
  - getMaximumSize
```
public Dimension getMaximumSize(JComponent c)
```
    Description copied from class: ComponentUI
    
    Returns the specified component's maximum size appropriate for the look and feel. If null is returned, the maximum size will be calculated by the component's layout manager instead (this is the preferred approach for any component with a specific layout manager installed). The default implementation of this method invokes getPreferredSize and returns that value.
    
    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)
  - getBaseline
```
public int getBaseline(JComponent c,
              int width,
              int height)
```
    Returns the baseline.
    
    Overrides:
    
    getBaseline in class ComponentUI
    
    Parameters:
    c - JComponent baseline is being requested for
    width - the width to get the baseline for
    height - the height to get the baseline for
    
    Returns:
    baseline or a value < 0 indicating there is no reasonable baseline
    
    Throws:
    
    NullPointerException - if c is null
    
    IllegalArgumentException - if width or height is < 0
    Since:
    
    1.6
    
    See Also:
    JComponent.getBaseline(int, int)
  - getBaselineResizeBehavior
```
public Component.BaselineResizeBehavior getBaselineResizeBehavior(JComponent c)
```
    Returns an enum indicating how the baseline of the component changes as the size changes.
    
    Overrides:
    
    getBaselineResizeBehavior in class ComponentUI
    
    Parameters:
    c - JComponent to return baseline resize behavior for
    
    Returns:
    an enum indicating how the baseline changes as the component size changes
    
    Throws:
    
    NullPointerException - if c is null
    Since:
    
    1.6
    
    See Also:
    JComponent.getBaseline(int, int)

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Document heeft de 11/06/2005 gemaakt, de laatste keer de 04/03/2020 gewijzigd
Bron van het afgedrukte document:https://www.gaudry.be/nl/java-api-rf-javax/swing/plaf/basic/BasicButtonUI.html

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Referenties

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Inhoudsopgave Haut

Modifier and Type	Field and Description
`protected int`	`defaultTextIconGap`
`protected int`	`defaultTextShiftOffset`

Class BasicButtonUI

Field Summary

Constructor Summary

Method Summary

Methods inherited from class javax.swing.plaf.ComponentUI

Methods inherited from class java.lang.Object

Field Detail

defaultTextIconGap

defaultTextShiftOffset

Constructor Detail

BasicButtonUI

Method Detail

createUI

getPropertyPrefix

installUI

installDefaults

installListeners

installKeyboardActions

uninstallUI

uninstallKeyboardActions

uninstallListeners

uninstallDefaults

createButtonListener

getDefaultTextIconGap

paint

paintIcon

paintText

paintText

paintFocus

paintButtonPressed

clearTextShiftOffset

setTextShiftOffset

getTextShiftOffset

getMinimumSize

getPreferredSize

getMaximumSize

getBaseline

getBaselineResizeBehavior

Referenties