/*
* 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.
*
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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;
}
}