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115 lines
2.8 KiB
115 lines
2.8 KiB
/*
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* Copyright (c) 1997, 2005, Oracle and/or its affiliates. All rights reserved.
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* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*/
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package com.sun.java.swing.plaf.motif;
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import sun.swing.SwingUtilities2;
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import javax.swing.*;
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import javax.swing.event.*;
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import javax.swing.border.*;
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import java.awt.Color;
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import java.awt.Component;
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import java.awt.Container;
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import java.awt.Dimension;
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import java.awt.Font;
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import java.awt.FontMetrics;
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import java.awt.Frame;
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import java.awt.Graphics;
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import java.awt.Insets;
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import java.awt.LayoutManager;
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import java.awt.Point;
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import java.awt.Rectangle;
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import java.awt.event.*;
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import javax.swing.plaf.*;
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import javax.swing.plaf.basic.BasicPopupMenuUI;
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/**
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* A Motif L&F implementation of PopupMenuUI.
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* <p>
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* <strong>Warning:</strong>
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* Serialized objects of this class will not be compatible with
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* future Swing releases. The current serialization support is appropriate
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* for short term storage or RMI between applications running the same
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* version of Swing. A future release of Swing will provide support for
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* long term persistence.
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*
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* @author Georges Saab
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* @author Rich Schiavi
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*/
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public class MotifPopupMenuUI extends BasicPopupMenuUI {
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private static Border border = null;
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private Font titleFont = null;
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public static ComponentUI createUI(JComponent x) {
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return new MotifPopupMenuUI();
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}
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/* This has to deal with the fact that the title may be wider than
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the widest child component.
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*/
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public Dimension getPreferredSize(JComponent c) {
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LayoutManager layout = c.getLayout();
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Dimension d = layout.preferredLayoutSize(c);
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String title = ((JPopupMenu)c).getLabel();
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if (titleFont == null) {
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UIDefaults table = UIManager.getLookAndFeelDefaults();
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titleFont = table.getFont("PopupMenu.font");
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}
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FontMetrics fm = c.getFontMetrics(titleFont);
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int stringWidth = 0;
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if (title!=null) {
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stringWidth += SwingUtilities2.stringWidth(c, fm, title);
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}
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if (d.width < stringWidth) {
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d.width = stringWidth + 8;
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Insets i = c.getInsets();
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if (i!=null) {
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d.width += i.left + i.right;
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}
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if (border != null) {
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i = border.getBorderInsets(c);
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d.width += i.left + i.right;
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}
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return d;
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}
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return null;
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}
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protected ChangeListener createChangeListener(JPopupMenu m) {
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return new ChangeListener() {
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public void stateChanged(ChangeEvent e) {}
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};
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}
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public boolean isPopupTrigger(MouseEvent e) {
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return ((e.getID()==MouseEvent.MOUSE_PRESSED)
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&& ((e.getModifiers() & MouseEvent.BUTTON3_MASK)!=0));
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}
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}
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