public class BasicComboBoxRenderer extends JLabel implements ListCellRenderer, Serializable
ComboBox renderer
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 JavaBeans™ has been added to the java.beans
package. Please see XMLEncoder
.
Modifier and Type | Class and Description |
---|---|
static class |
BasicComboBoxRenderer.UIResource A subclass of BasicComboBoxRenderer that implements UIResource. |
JLabel.AccessibleJLabel
JComponent.AccessibleJComponent
Container.AccessibleAWTContainer
Component.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategy
protected static Border noFocusBorder
An empty Border
. This field might not be used. To change the Border
used by this renderer directly set it using the setBorder
method.
public BasicComboBoxRenderer()
public Dimension getPreferredSize()
Description copied from class: JComponent
If the preferredSize
has been set to a non-null
value just returns it. If the UI delegate's getPreferredSize
method returns a non null
value then return that; otherwise defer to the component's layout manager.
getPreferredSize
in class JComponent
preferredSize
propertyJComponent.setPreferredSize(java.awt.Dimension)
, ComponentUI
public Component getListCellRendererComponent(JList list, Object value, int index, boolean isSelected, boolean cellHasFocus)
Description copied from interface: ListCellRenderer
Return a component that has been configured to display the specified value. That component's paint
method is then called to "render" the cell. If it is necessary to compute the dimensions of a list because the list cells do not have a fixed size, this method is called to generate a component on which getPreferredSize
can be invoked.
getListCellRendererComponent
in interface ListCellRenderer
list
- The JList we're painting.value
- The value returned by list.getModel().getElementAt(index).index
- The cells index.isSelected
- True if the specified cell was selected.cellHasFocus
- True if the specified cell has the focus.JList
, ListSelectionModel
, ListModel
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