Returns true if the specified x,y location is contained within the look and feel's defined shape of the specified component.

  Returns true if the specified x,y location is
contained within the look and feel's defined shape of the specified
component. x and y are defined to be relative
to the coordinate system of the specified component. Although
a component's bounds is constrained to a rectangle,
this method provides the means for defining a non-rectangular
shape within those bounds for the purpose of hit detection.
Parameters:
- c - the component where the x,y location is being queried; this argument is often ignored, but might be used if the UI object is stateless and shared by multiple components
- x - the x coordinate of the point
- y - the y coordinate of the point
See Also: JComponent.contains(int, int), Component.contains(int, int),

  Returns the ith Accessible child of the object.

  Returns the ith Accessible child of the object. UIs might need to override this if they present areas on the screen that can be viewed as components, but actual components are not used for presenting those areas.

Note: As of v1.3, it is recommended that developers call Component.AccessibleAWTComponent.getAccessibleChild() instead of this method.
Returns: the ith Accessible child of the object
Parameters:
- i - zero-based index of child
See Also: ComponentUI.getAccessibleChildrenCount(javax.swing.JComponent),

  Returns the number of accessible children in the object.

  Returns the number of accessible children in the object. If all
of the children of this object implement Accessible,
this
method should return the number of children of this object.
UIs might wish to override this if they present areas on the
screen that can be viewed as components, but actual components
are not used for presenting those areas.

Note: As of v1.3, it is recommended that developers call
Component.AccessibleAWTComponent.getAccessibleChildrenCount() instead
of this method.
Returns: the number of accessible children in the object
See Also: ComponentUI.getAccessibleChild(javax.swing.JComponent, int),

  Returns the baseline.

  Returns the baseline. The baseline is measured from the top of the component. This method is primarily meant for LayoutManagers to align components along their baseline. A return value less than 0 indicates this component does not have a reasonable baseline and that LayoutManagers should not align this component on its baseline.

This method returns -1. Subclasses that have a meaningful baseline should override appropriately.
Returns: baseline or a value < 0 indicating there is no reasonable baseline
Parameters:
- c - JComponent baseline is being requested for
- width - the width to get the baseline for
- height - the height to get the baseline for
Throws:
- NullPointerException - if c is null
- IllegalArgumentException - if width or height is < 0
Since: 1.6
See Also: JComponent.getBaseline(int,int),

  Returns an enum indicating how the baseline of he component changes as the size changes.

  Returns an enum indicating how the baseline of he component changes as the size changes. This method is primarily meant for layout managers and GUI builders.

This method returns BaselineResizeBehavior.OTHER. Subclasses that support a baseline should override appropriately.
Returns: an enum indicating how the baseline changes as the component size changes
Parameters:
- c - JComponent to return baseline resize behavior for
Throws:
- NullPointerException - if c is null
Since: 1.6
See Also: JComponent.getBaseline(int, int),

  Returns the specified component's maximum size appropriate for the look and feel.

  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.
Returns: a Dimension object or null
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
See Also: JComponent.getMaximumSize(), LayoutManager2.maximumLayoutSize(java.awt.Container),

  Returns the specified component's minimum size appropriate for the look and feel.

  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.
Returns: a Dimension object or null
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
See Also: JComponent.getMinimumSize(), LayoutManager.minimumLayoutSize(java.awt.Container), ComponentUI.getPreferredSize(javax.swing.JComponent),

  Returns the Popup that will be responsible for displaying the JPopupMenu.

  Returns the Popup that will be responsible for
displaying the JPopupMenu.
Returns: Popup that will show the JPopupMenu
Parameters:
- popup - JPopupMenu requesting Popup
- x - Screen x location Popup is to be shown at
- y - Screen y location Popup is to be shown at.
Since: 1.4

  Returns the specified component's preferred size appropriate for the look and feel.

  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.
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),

  Paints the specified component appropriate for the look and feel.

  Paints the specified component appropriate 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.
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),

  Notifies this UI delegate that it's time to paint the specified component.

  Notifies this UI delegate that it's time to paint the specified
component. This method is invoked by JComponent
when the specified component is being painted.
By default this method will fill the specified component with
its background color (if its opaque property is
true) and then immediately call paint.
In general this method need not be overridden by subclasses;
all look-and-feel rendering code should reside in the paint
method.
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.paint(java.awt.Graphics, javax.swing.JComponent), JComponent.paintComponent(java.awt.Graphics),