org.fife.rsta.ui.MaxWidthComboBox Maven / Gradle / Ivy
/*
* 11/27/2004
*
* MaxWidthComboBox.java - A combo box with a maximum width, to avoid pesky
* layout problems when the combo contains lengthy strings.
* This library is distributed under a modified BSD license. See the included
* RSTAUI.License.txt file for details.
*/
package org.fife.rsta.ui;
import java.awt.Dimension;
import javax.swing.ComboBoxModel;
import javax.swing.JComboBox;
/**
* A combo box whose width cannot go over a specified value. This class is
* useful when you have a layout manager that adheres to the combo box's
* preferred/maximum sizes (such as SpringLayout), and your
* combo box contains a value longer than you'd like - the combo box is drawn
* too large and the GUI looks ugly. With this class you can set a maximum
* width for the combo box, and its height will never be affected.
*
* @author Robert Futrell
* @version 0.5
*/
public class MaxWidthComboBox extends JComboBox {
private static final long serialVersionUID = 1L;
/**
* The width of this combo box will never be greater than this value.
*/
private int maxWidth;
/**
* Constructor.
*
* @param maxWidth The maximum width for this combo box.
*/
public MaxWidthComboBox(int maxWidth) {
this.maxWidth = maxWidth;
}
/**
* Constructor.
*
* @param model The model for this combo box.
* @param maxWidth The maximum width for this combo box.
*/
public MaxWidthComboBox(ComboBoxModel model, int maxWidth) {
super(model);
this.maxWidth = maxWidth;
}
/**
* Overridden to ensure that the returned size has width no greater than
* the specified maximum.
*
* @return The maximum size of this combo box.
*/
public Dimension getMaximumSize() {
Dimension size = super.getMaximumSize();
size.width = Math.min(size.width, maxWidth);
return size;
}
/**
* Overridden to ensure that the returned size has width no greater than
* the specified maximum.
*
* @return The minimum size of this combo box.
*/
public Dimension getMinimumSize() {
Dimension size = super.getMinimumSize();
size.width = Math.min(size.width, maxWidth);
return size;
}
/**
* Overridden to ensure that the returned size has width no greater than
* the specified maximum.
*
* @return The preferred size of this combo box.
*/
public Dimension getPreferredSize() {
Dimension size = super.getPreferredSize();
size.width = Math.min(size.width, maxWidth);
return size;
}
}