javax.swing.plaf.basic

Class BasicOptionPaneUI

java.lang.Object

javax.swing.plaf.ComponentUI

javax.swing.plaf.OptionPaneUI

javax.swing.plaf.basic.BasicOptionPaneUI

Direct Known Subclasses:

SynthOptionPaneUI

public class BasicOptionPaneUI
extends OptionPaneUI

Provides the basic look and feel for a JOptionPane. BasicMessagePaneUI provides a means to place an icon, message and buttons into a Container. Generally, the layout will look like:

        ------------------
        | i | message    |
        | c | message    |
        | o | message    |
        | n | message    |
        ------------------
        |     buttons    |
        |________________|
 

icon is an instance of Icon that is wrapped inside a JLabel. The message is an opaque object and is tested for the following: if the message is a Component it is added to the Container, if it is an Icon it is wrapped inside a JLabel and added to the Container otherwise it is wrapped inside a JLabel.

The above layout is used when the option pane's ComponentOrientation property is horizontal, left-to-right. The layout will be adjusted appropriately for other orientations.

The Container, message, icon, and buttons are all determined from abstract methods.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	BasicOptionPaneUI.ButtonActionListener	This class should be treated as a "protected" inner class.
static class	BasicOptionPaneUI.ButtonAreaLayout	ButtonAreaLayout behaves in a similar manner to FlowLayout.
class	BasicOptionPaneUI.PropertyChangeHandler	This class should be treated as a "protected" inner class.

Field Summary

Fields

Modifier and Type	Field	Description
protected boolean	hasCustomComponents	This is set to true in validateComponent if a Component is contained in either the message or the buttons.
protected Component	initialFocusComponent	Component to receive focus when messaged with selectInitialValue.
protected JComponent	inputComponent	JComponent provide for input if optionPane.getWantsInput() returns true.
static int	MinimumHeight
protected Dimension	minimumSize
static int	MinimumWidth
protected JOptionPane	optionPane	JOptionPane that the receiver is providing the look and feel for.
protected PropertyChangeListener	propertyChangeListener

Constructor Summary

Constructors

Constructor	Description
BasicOptionPaneUI()

Method Summary

Modifier and Type	Method	Description
protected void	addButtonComponents(Container container, Object[] buttons, int initialIndex)	Creates the appropriate object to represent each of the objects in buttons and adds it to container.
protected void	addIcon(Container top)	Creates and adds a JLabel representing the icon returned from getIcon to top.
protected void	addMessageComponents(Container container, GridBagConstraints cons, Object msg, int maxll, boolean internallyCreated)	Creates the appropriate object to represent msg and places it into container.
protected void	burstStringInto(Container c, String d, int maxll)	Recursively creates new JLabel instances to represent d.
boolean	containsCustomComponents(JOptionPane op)	Returns true if in the last call to validateComponent the message or buttons contained a subclass of Component.
protected ActionListener	createButtonActionListener(int buttonIndex)
protected Container	createButtonArea()	Creates and returns a Container containing the buttons.
protected LayoutManager	createLayoutManager()
protected Container	createMessageArea()	Messaged from installComponents to create a Container containing the body of the message.
protected PropertyChangeListener	createPropertyChangeListener()
protected Container	createSeparator()
static ComponentUI	createUI(JComponent x)	Creates a new BasicOptionPaneUI instance.
protected Object[]	getButtons()	Returns the buttons to display from the JOptionPane the receiver is providing the look and feel for.
protected Icon	getIcon()	Returns the icon from the JOptionPane the receiver is providing the look and feel for, or the default icon as returned from getDefaultIcon.
protected Icon	getIconForType(int messageType)	Returns the icon to use for the passed in type.
protected int	getInitialValueIndex()	Returns the initial index into the buttons to select.
protected int	getMaxCharactersPerLineCount()	Returns the maximum number of characters to place on a line.
protected Object	getMessage()	Returns the message to display from the JOptionPane the receiver is providing the look and feel for.
Dimension	getMinimumOptionPaneSize()	Returns the minimum size the option pane should be.
Dimension