javax.swing.plaf.basic

## Class BasicArrowButton

- java.lang.Object
- - java.awt.Component
  - - java.awt.Container
    - - javax.swing.JComponent
      - - javax.swing.AbstractButton
        - - javax.swing.JButton
          - - javax.swing.plaf.basic.BasicArrowButton

- All Implemented Interfaces:
    ImageObserver, ItemSelectable, MenuContainer, Serializable, Accessible, SwingConstants
  Direct Known Subclasses:
    MetalScrollButton

      public class BasicArrowButton
      extends JButton
      implements SwingConstants

  JButton object that draws a scaled Arrow in one of the cardinal directions.

  Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. As of 1.4, support for long term storage of all JavaBeansTM has been added to the `java.beans` package. Please see `XMLEncoder`.

- - ### Nested Class Summary

    - ### Nested classes/interfaces inherited from class javax.swing.JButton

      `JButton.AccessibleJButton`

    - ### Nested classes/interfaces inherited from class javax.swing.AbstractButton

      `AbstractButton.AccessibleAbstractButton, AbstractButton.ButtonChangeListener`

    - ### Nested classes/interfaces inherited from class javax.swing.JComponent

      `JComponent.AccessibleJComponent`

    - ### Nested classes/interfaces inherited from class java.awt.Container

      `Container.AccessibleAWTContainer`

    - ### Nested classes/interfaces inherited from class java.awt.Component

      `Component.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategy`

  - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `protected int` | `direction` The direction of the arrow.

    - ### Fields inherited from class javax.swing.AbstractButton

      `actionListener, BORDER_PAINTED_CHANGED_PROPERTY, changeEvent, changeListener, CONTENT_AREA_FILLED_CHANGED_PROPERTY, DISABLED_ICON_CHANGED_PROPERTY, DISABLED_SELECTED_ICON_CHANGED_PROPERTY, FOCUS_PAINTED_CHANGED_PROPERTY, HORIZONTAL_ALIGNMENT_CHANGED_PROPERTY, HORIZONTAL_TEXT_POSITION_CHANGED_PROPERTY, ICON_CHANGED_PROPERTY, itemListener, MARGIN_CHANGED_PROPERTY, MNEMONIC_CHANGED_PROPERTY, model, MODEL_CHANGED_PROPERTY, PRESSED_ICON_CHANGED_PROPERTY, ROLLOVER_ENABLED_CHANGED_PROPERTY, ROLLOVER_ICON_CHANGED_PROPERTY, ROLLOVER_SELECTED_ICON_CHANGED_PROPERTY, SELECTED_ICON_CHANGED_PROPERTY, TEXT_CHANGED_PROPERTY, VERTICAL_ALIGNMENT_CHANGED_PROPERTY, VERTICAL_TEXT_POSITION_CHANGED_PROPERTY`

    - ### Fields inherited from class javax.swing.JComponent

      `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

      `BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT`

    - ### Fields inherited from interface javax.swing.SwingConstants

      `BOTTOM, CENTER, EAST, HORIZONTAL, LEADING, LEFT, NEXT, NORTH, NORTH_EAST, NORTH_WEST, PREVIOUS, RIGHT, SOUTH, SOUTH_EAST, SOUTH_WEST, TOP, TRAILING, VERTICAL, WEST`

    - ### Fields inherited from interface java.awt.image.ImageObserver

      `ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `BasicArrowButton(int direction)` Creates a `BasicArrowButton` whose arrow is drawn in the specified direction.
    `BasicArrowButton(int direction, Color background, Color shadow, Color darkShadow, Color highlight)` Creates a `BasicArrowButton` whose arrow is drawn in the specified direction and with the specified colors.

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `int` | `getDirection()` Returns the direction of the arrow.
    `Dimension` | `getMaximumSize()` Returns the maximum size of the `BasicArrowButton`.
    `Dimension` | `getMinimumSize()` Returns the minimum size of the `BasicArrowButton`.
    `Dimension` | `getPreferredSize()` Returns the preferred size of the `BasicArrowButton`.
    `boolean` | `isFocusTraversable()` Returns whether the arrow button should get the focus.
    `void` | `paint(Graphics g)` Invoked by Swing to draw components.
    `void` | `paintTriangle(Graphics g, int x, int y, int size, int direction, boolean isEnabled)` Paints a triangle.
    `void` | `setDirection(int direction)` Sets the direction of the arrow.

    - ### Methods inherited from class javax.swing.JButton

      `getAccessibleContext, getUIClassID, isDefaultButton, isDefaultCapable, paramString, removeNotify, setDefaultCapable, updateUI`

    - ### Methods inherited from class javax.swing.AbstractButton

      `actionPropertyChanged, addActionListener, addChangeListener, addImpl, addItemListener, checkHorizontalKey, checkVerticalKey, configurePropertiesFromAction, createActionListener, createActionPropertyChangeListener, createChangeListener, createItemListener, doClick, doClick, fireActionPerformed, fireItemStateChanged, fireStateChanged, getAction, getActionCommand, getActionListeners, getChangeListeners, getDisabledIcon, getDisabledSelectedIcon, getDisplayedMnemonicIndex, getHideActionText, getHorizontalAlignment, getHorizontalTextPosition, getIcon, getIconTextGap, getItemListeners, getLabel, getMargin, getMnemonic, getModel, getMultiClickThreshhold, getPressedIcon, getRolloverIcon, getRolloverSelectedIcon, getSelectedIcon, getSelectedObjects, getText, getUI, getVerticalAlignment, getVerticalTextPosition, imageUpdate, init, isBorderPainted, isContentAreaFilled, isFocusPainted, isRolloverEnabled, isSelected, paintBorder, removeActionListener, removeChangeListener, removeItemListener, setAction, setActionCommand, setBorderPainted, setContentAreaFilled, setDisabledIcon, setDisabledSelectedIcon, setDisplayedMnemonicIndex, setEnabled, setFocusPainted, setHideActionText, setHorizontalAlignment, setHorizontalTextPosition, setIcon, setIconTextGap, setLabel, setLayout, setMargin, setMnemonic, setMnemonic, setModel, setMultiClickThreshhold, setPressedIcon, setRolloverEnabled, setRolloverIcon, setRolloverSelectedIcon, setSelected, setSelectedIcon, setText, setUI, setVerticalAlignment, setVerticalTextPosition`

    - ### Methods inherited from class javax.swing.JComponent

      `addAncestorListener, addNotify, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAncestorListeners, getAutoscrolls, getBaseline, getBaselineResizeBehavior, getBorder, getBounds, getClientProperty, getComponentGraphics, getComponentPopupMenu, getConditionForKeyStroke, getDebugGraphicsOptions, getDefaultLocale, getFontMetrics, getGraphics, getHeight, getInheritsPopupMenu, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, getListeners, getLocation, getNextFocusableComponent, getPopupLocation, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getTransferHandler, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, hide, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingForPrint, isPaintingOrigin, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paintChildren, paintComponent, paintImmediately, paintImmediately, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processKeyBinding, processKeyEvent, processMouseEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setActionMap, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setComponentPopupMenu, setDebugGraphicsOptions, setDefaultLocale, setDoubleBuffered, setFocusTraversalKeys, setFont, setForeground, setInheritsPopupMenu, setInputMap, setInputVerifier, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setTransferHandler, setUI, setVerifyInputWhenFocusTarget, setVisible, unregisterKeyboardAction, update`

    - ### Methods inherited from class java.awt.Container

      `add, add, add, add, add, addContainerListener, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getLayout, getMousePosition, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paintComponents, preferredSize, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, setComponentZOrder, setFocusCycleRoot, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, transferFocusDownCycle, validate, validateTree`

    - ### Methods inherited from class java.awt.Component

      `action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, createImage, createImage, createVolatileImage, createVolatileImage, disableEvents, dispatchEvent, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getForeground, getGraphicsConfiguration, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocale, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hasFocus, inside, isBackgroundSet, isCursorSet, isDisplayable, isEnabled, isFocusable, isFocusOwner, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isPreferredSizeSet, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setName, setSize, setSize, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle`

    - ### Methods inherited from class java.lang.Object

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

- - ### Field Detail

    - #### direction

          protected int direction

      The direction of the arrow. One of `SwingConstants.NORTH`, `SwingConstants.SOUTH`, `SwingConstants.EAST` or `SwingConstants.WEST`.

  - ### Constructor Detail

    - #### BasicArrowButton

          public BasicArrowButton(int direction,
                          Color background,
                          Color shadow,
                          Color darkShadow,
                          Color highlight)

      Creates a `BasicArrowButton` whose arrow is drawn in the specified direction and with the specified colors.
      Parameters:
        `direction` - the direction of the arrow; one of `SwingConstants.NORTH`, `SwingConstants.SOUTH`, `SwingConstants.EAST` or `SwingConstants.WEST`
        `background` - the background color of the button
        `shadow` - the color of the shadow
        `darkShadow` - the color of the dark shadow
        `highlight` - the color of the highlight
      Since:
        1.4

    - #### BasicArrowButton

          public BasicArrowButton(int direction)

      Creates a `BasicArrowButton` whose arrow is drawn in the specified direction.
      Parameters:
        `direction` - the direction of the arrow; one of `SwingConstants.NORTH`, `SwingConstants.SOUTH`, `SwingConstants.EAST` or `SwingConstants.WEST`

  - ### Method Detail

    - #### getDirection

          public int getDirection()

      Returns the direction of the arrow.

    - #### setDirection

          public void setDirection(int direction)

      Sets the direction of the arrow.
      Parameters:
        `direction` - the direction of the arrow; one of of `SwingConstants.NORTH`, `SwingConstants.SOUTH`, `SwingConstants.EAST` or `SwingConstants.WEST`

    - #### paint

          public void paint(Graphics g)

      Description copied from class: `JComponent`
      Invoked by Swing to draw components. Applications should not invoke `paint` directly, but should instead use the `repaint` method to schedule the component for redrawing.

      This method actually delegates the work of painting to three protected methods: `paintComponent`, `paintBorder`, and `paintChildren`. They're called in the order listed to ensure that children appear on top of component itself. Generally speaking, the component and its children should not paint in the insets area allocated to the border. Subclasses can just override this method, as always. A subclass that just wants to specialize the UI (look and feel) delegate's `paint` method should just override `paintComponent`.

      Overrides:
        `paint` in class `JComponent`
      Parameters:
        `g` - the `Graphics` context in which to paint
      See Also:
        `JComponent.paintComponent(java.awt.Graphics)`, `JComponent.paintBorder(java.awt.Graphics)`, `JComponent.paintChildren(java.awt.Graphics)`, `JComponent.getComponentGraphics(java.awt.Graphics)`, `JComponent.repaint(long, int, int, int, int)`

    - #### getPreferredSize

          public Dimension getPreferredSize()

      Returns the preferred size of the `BasicArrowButton`.
      Overrides:
        `getPreferredSize` in class `JComponent`
      Returns:
        the preferred size
      See Also:
        `JComponent.setPreferredSize(java.awt.Dimension)`, `ComponentUI`

    - #### getMinimumSize

          public Dimension getMinimumSize()

      Returns the minimum size of the `BasicArrowButton`.
      Overrides:
        `getMinimumSize` in class `JComponent`
      Returns:
        the minimum size
      See Also:
        `JComponent.setMinimumSize(java.awt.Dimension)`, `ComponentUI`

    - #### getMaximumSize

          public Dimension getMaximumSize()

      Returns the maximum size of the `BasicArrowButton`.
      Overrides:
        `getMaximumSize` in class `JComponent`
      Returns:
        the maximum size
      See Also:
        `JComponent.setMaximumSize(java.awt.Dimension)`, `ComponentUI`

    - #### isFocusTraversable

          public boolean isFocusTraversable()

      Returns whether the arrow button should get the focus. `BasicArrowButton`s are used as a child component of composite components such as `JScrollBar` and `JComboBox`. Since the composite component typically gets the focus, this method is overriden to return `false`.
      Overrides:
        `isFocusTraversable` in class `Component`
      Returns:
        `false`
      See Also:
        `Component.setFocusable(boolean)`

    - #### paintTriangle

          public void paintTriangle(Graphics g,
                           int x,
                           int y,
                           int size,
                           int direction,
                           boolean isEnabled)

      Paints a triangle.
      Parameters:
        `g` - the `Graphics` to draw to
        `x` - the x coordinate
        `y` - the y coordinate
        `size` - the size of the triangle to draw
        `direction` - the direction in which to draw the arrow; one of `SwingConstants.NORTH`, `SwingConstants.SOUTH`, `SwingConstants.EAST` or `SwingConstants.WEST`
        `isEnabled` - whether or not the arrow is drawn enabled

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