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/* * Copyright (c) 1998, 2004, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation.  Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package javax.swing.plaf.metal; import java.awt.*;import java.awt.event.*;import javax.swing.plaf.basic.*;import javax.swing.*;import javax.swing.plaf.*;import javax.swing.border.*;import java.io.Serializable; /** * JButton subclass to help out MetalComboBoxUI * <p> * <strong>Warning:</strong> * 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<sup><font size="-2">TM</font></sup> * has been added to the <code>java.beans</code> package. * Please see {@link java.beans.XMLEncoder}. * * @see MetalComboBoxButton * @author Tom Santos */public class MetalComboBoxButton extends JButton {    protected JComboBox comboBox;    protected JList listBox;    protected CellRendererPane rendererPane;    protected Icon comboIcon;    protected boolean iconOnly = false;     public final JComboBox getComboBox() { return comboBox;}    public final void setComboBox( JComboBox cb ) { comboBox = cb;}     public final Icon getComboIcon() { return comboIcon;}    public final void setComboIcon( Icon i ) { comboIcon = i;}     public final boolean isIconOnly() { return iconOnly;}    public final void setIconOnly( boolean isIconOnly ) { iconOnly = isIconOnly;}     MetalComboBoxButton() {        super( "" );        DefaultButtonModel model = new DefaultButtonModel() {            public void setArmed( boolean armed ) {                super.setArmed( isPressed() ? true : armed );            }        };        setModel( model );    }     public MetalComboBoxButton( JComboBox cb, Icon i,                                CellRendererPane pane, JList list ) {        this();        comboBox = cb;        comboIcon = i;        rendererPane = pane;        listBox = list;        setEnabled( comboBox.isEnabled() );    }     public MetalComboBoxButton( JComboBox cb, Icon i, boolean onlyIcon,                                CellRendererPane pane, JList list ) {        this( cb, i, pane, list );        iconOnly = onlyIcon;    }     public boolean isFocusTraversable() {        return false;    }     public void setEnabled(boolean enabled) {        super.setEnabled(enabled);         // Set the background and foreground to the combobox colors.        if (enabled) {            setBackground(comboBox.getBackground());            setForeground(comboBox.getForeground());        } else {            setBackground(UIManager.getColor("ComboBox.disabledBackground"));            setForeground(UIManager.getColor("ComboBox.disabledForeground"));        }    }     public void paintComponent( Graphics g ) {        boolean leftToRight = MetalUtils.isLeftToRight(comboBox);         // Paint the button as usual        super.paintComponent( g );         Insets insets = getInsets();         int width = getWidth() - (insets.left + insets.right);        int height = getHeight() - (insets.top + insets.bottom);         if ( height <= 0 || width <= 0 ) {            return;        }         int left = insets.left;        int top = insets.top;        int right = left + (width - 1);        int bottom = top + (height - 1);         int iconWidth = 0;        int iconLeft = (leftToRight) ? right : left;         // Paint the icon        if ( comboIcon != null ) {            iconWidth = comboIcon.getIconWidth();            int iconHeight = comboIcon.getIconHeight();            int iconTop = 0;             if ( iconOnly ) {                iconLeft = (getWidth() / 2) - (iconWidth / 2);                iconTop = (getHeight() / 2) - (iconHeight / 2);            }            else {                if (leftToRight) {                    iconLeft = (left + (width - 1)) - iconWidth;                }                else {                    iconLeft = left;                }                iconTop = (top + ((bottom - top) / 2)) - (iconHeight / 2);            }             comboIcon.paintIcon( this, g, iconLeft, iconTop );             // Paint the focus            if ( comboBox.hasFocus() && (!MetalLookAndFeel.usingOcean() ||                                         comboBox.isEditable())) {                g.setColor( MetalLookAndFeel.getFocusColor() );                g.drawRect( left - 1, top - 1, width + 3, height + 1 );            }        }         if (MetalLookAndFeel.usingOcean()) {            // With Ocean the button only paints the arrow, bail.            return;        }         // Let the renderer paint        if ( ! iconOnly && comboBox != null ) {            ListCellRenderer renderer = comboBox.getRenderer();            Component c;            boolean renderPressed = getModel().isPressed();            c = renderer.getListCellRendererComponent(listBox,                                                      comboBox.getSelectedItem(),                                                      -1,                                                      renderPressed,                                                      false);            c.setFont(rendererPane.getFont());             if ( model.isArmed() && model.isPressed() ) {                if ( isOpaque() ) {                    c.setBackground(UIManager.getColor("Button.select"));                }                c.setForeground(comboBox.getForeground());            }            else if ( !comboBox.isEnabled() ) {                if ( isOpaque() ) {                    c.setBackground(UIManager.getColor("ComboBox.disabledBackground"));                }                c.setForeground(UIManager.getColor("ComboBox.disabledForeground"));            }            else {                c.setForeground(comboBox.getForeground());                c.setBackground(comboBox.getBackground());            }              int cWidth = width - (insets.right + iconWidth);             // Fix for 4238829: should lay out the JPanel.            boolean shouldValidate = false;            if (c instanceof JPanel)  {                shouldValidate = true;            }             if (leftToRight) {                rendererPane.paintComponent( g, c, this,                                             left, top, cWidth, height, shouldValidate );            }            else {                rendererPane.paintComponent( g, c, this,                                             left + iconWidth, top, cWidth, height, shouldValidate );            }        }    }     public Dimension getMinimumSize() {        Dimension ret = new Dimension();        Insets insets = getInsets();        ret.width = insets.left + getComboIcon().getIconWidth() + insets.right;        ret.height = insets.bottom + getComboIcon().getIconHeight() + insets.top;        return ret;    }}