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/*
* Copyright (c) 1998, 2013, 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
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package javax.swing.plaf.metal;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.plaf.*;
import javax.swing.border.*;
import javax.swing.plaf.basic.*;
import java.io.Serializable;
import java.beans.*;
/**
* Metal UI for JComboBox
* <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™
* has been added to the <code>java.beans</code> package.
* Please see {@link java.beans.XMLEncoder}.
*
* @see MetalComboBoxEditor
* @see MetalComboBoxButton
* @author Tom Santos
*/
public class MetalComboBoxUI extends BasicComboBoxUI {
public static ComponentUI createUI(JComponent c) {
return new MetalComboBoxUI();
}
public void paint(Graphics g, JComponent c) {
if (MetalLookAndFeel.usingOcean()) {
super.paint(g, c);
}
}
/**
* If necessary paints the currently selected item.
*
* @param g Graphics to paint to
* @param bounds Region to paint current value to
* @param hasFocus whether or not the JComboBox has focus
* @throws NullPointerException if any of the arguments are null.
* @since 1.5
*/
public void paintCurrentValue(Graphics g, Rectangle bounds,
boolean hasFocus) {
// This is really only called if we're using ocean.
if (MetalLookAndFeel.usingOcean()) {
bounds.x += 2;
bounds.width -= 3;
if (arrowButton != null) {
Insets buttonInsets = arrowButton.getInsets();
bounds.y += buttonInsets.top;
bounds.height -= (buttonInsets.top + buttonInsets.bottom);
}
else {
bounds.y += 2;
bounds.height -= 4;
}
super.paintCurrentValue(g, bounds, hasFocus);
}
else if (g == null || bounds == null) {
throw new NullPointerException(
"Must supply a non-null Graphics and Rectangle");
}
}
/**
* If necessary paints the background of the currently selected item.
*
* @param g Graphics to paint to
* @param bounds Region to paint background to
* @param hasFocus whether or not the JComboBox has focus
* @throws NullPointerException if any of the arguments are null.
* @since 1.5
*/
public void paintCurrentValueBackground(Graphics g, Rectangle bounds,
boolean hasFocus) {
// This is really only called if we're using ocean.
if (MetalLookAndFeel.usingOcean()) {
g.setColor(MetalLookAndFeel.getControlDarkShadow());
g.drawRect(bounds.x, bounds.y, bounds.width, bounds.height - 1);
g.setColor(MetalLookAndFeel.getControlShadow());
g.drawRect(bounds.x + 1, bounds.y + 1, bounds.width - 2,
bounds.height - 3);
if (hasFocus && !isPopupVisible(comboBox) &&
arrowButton != null) {
g.setColor(listBox.getSelectionBackground());
Insets buttonInsets = arrowButton.getInsets();
if (buttonInsets.top > 2) {
g.fillRect(bounds.x + 2, bounds.y + 2, bounds.width - 3,
buttonInsets.top - 2);
}
if (buttonInsets.bottom > 2) {
g.fillRect(bounds.x + 2, bounds.y + bounds.height -
buttonInsets.bottom, bounds.width - 3,
buttonInsets.bottom - 2);
}
}
}
else if (g == null || bounds == null) {
throw new NullPointerException(
"Must supply a non-null Graphics and Rectangle");
}
}
/**
* Returns the baseline.
*
* @throws NullPointerException {@inheritDoc}
* @throws IllegalArgumentException {@inheritDoc}
* @see javax.swing.JComponent#getBaseline(int, int)
* @since 1.6
*/
public int getBaseline(JComponent c, int width, int height) {
int baseline;
if (MetalLookAndFeel.usingOcean() && height >= 4) {
height -= 4;
baseline = super.getBaseline(c, width, height);
if (baseline >= 0) {
baseline += 2;
}
}
else {
baseline = super.getBaseline(c, width, height);
}
return baseline;
}
protected ComboBoxEditor createEditor() {
return new MetalComboBoxEditor.UIResource();
}
protected ComboPopup createPopup() {
return super.createPopup();
}
protected JButton createArrowButton() {
boolean iconOnly = (comboBox.isEditable() ||
MetalLookAndFeel.usingOcean());
JButton button = new MetalComboBoxButton( comboBox,
new MetalComboBoxIcon(),
iconOnly,
currentValuePane,
listBox );
button.setMargin( new Insets( 0, 1, 1, 3 ) );
if (MetalLookAndFeel.usingOcean()) {
// Disabled rollover effect.
button.putClientProperty(MetalBorders.NO_BUTTON_ROLLOVER,
Boolean.TRUE);
}
updateButtonForOcean(button);
return button;
}
/**
* Resets the necessary state on the ComboBoxButton for ocean.
*/
private void updateButtonForOcean(JButton button) {
if (MetalLookAndFeel.usingOcean()) {
// Ocean renders the focus in a different way, this
// would be redundant.
button.setFocusPainted(comboBox.isEditable());
}
}
public PropertyChangeListener createPropertyChangeListener() {
return new MetalPropertyChangeListener();
}
/**
* This class should be treated as a "protected" inner class.
* Instantiate it only within subclasses of {@code MetalComboBoxUI}.
*/
public class MetalPropertyChangeListener extends BasicComboBoxUI.PropertyChangeHandler {
public void propertyChange(PropertyChangeEvent e) {
super.propertyChange( e );
String propertyName = e.getPropertyName();
if ( propertyName == "editable" ) {
if(arrowButton instanceof MetalComboBoxButton) {
MetalComboBoxButton button = (MetalComboBoxButton)arrowButton;
button.setIconOnly( comboBox.isEditable() ||
MetalLookAndFeel.usingOcean() );
}
comboBox.repaint();
updateButtonForOcean(arrowButton);
} else if ( propertyName == "background" ) {
Color color = (Color)e.getNewValue();
arrowButton.setBackground(color);
listBox.setBackground(color);
} else if ( propertyName == "foreground" ) {
Color color = (Color)e.getNewValue();
arrowButton.setForeground(color);
listBox.setForeground(color);
}
}
}
/**
* As of Java 2 platform v1.4 this method is no longer used. Do not call or
* override. All the functionality of this method is in the
* MetalPropertyChangeListener.
*
* @deprecated As of Java 2 platform v1.4.
*/
@Deprecated
protected void editablePropertyChanged( PropertyChangeEvent e ) { }
protected LayoutManager createLayoutManager() {
return new MetalComboBoxLayoutManager();
}
/**
* This class should be treated as a "protected" inner class.
* Instantiate it only within subclasses of {@code MetalComboBoxUI}.
*/
public class MetalComboBoxLayoutManager extends BasicComboBoxUI.ComboBoxLayoutManager {
public void layoutContainer( Container parent ) {
layoutComboBox( parent, this );
}
public void superLayout( Container parent ) {
super.layoutContainer( parent );
}
}
// This is here because of a bug in the compiler.
// When a protected-inner-class-savvy compiler comes out we
// should move this into MetalComboBoxLayoutManager.
public void layoutComboBox( Container parent, MetalComboBoxLayoutManager manager ) {
if (comboBox.isEditable() && !MetalLookAndFeel.usingOcean()) {
manager.superLayout( parent );
return;
}
if (arrowButton != null) {
if (MetalLookAndFeel.usingOcean() ) {
Insets insets = comboBox.getInsets();
int buttonWidth = arrowButton.getMinimumSize().width;
arrowButton.setBounds(MetalUtils.isLeftToRight(comboBox)
? (comboBox.getWidth() - insets.right - buttonWidth)
: insets.left,
insets.top, buttonWidth,
comboBox.getHeight() - insets.top - insets.bottom);
}
else {
Insets insets = comboBox.getInsets();
int width = comboBox.getWidth();
int height = comboBox.getHeight();
arrowButton.setBounds( insets.left, insets.top,
width - (insets.left + insets.right),
height - (insets.top + insets.bottom) );
}
}
if (editor != null && MetalLookAndFeel.usingOcean()) {
Rectangle cvb = rectangleForCurrentValue();
editor.setBounds(cvb);
}
}
/**
* As of Java 2 platform v1.4 this method is no
* longer used.
*
* @deprecated As of Java 2 platform v1.4.
*/
@Deprecated
protected void removeListeners() {
if ( propertyChangeListener != null ) {
comboBox.removePropertyChangeListener( propertyChangeListener );
}
}
// These two methods were overloaded and made public. This was probably a
// mistake in the implementation. The functionality that they used to
// provide is no longer necessary and should be removed. However,
// removing them will create an uncompatible API change.
public void configureEditor() {
super.configureEditor();
}
public void unconfigureEditor() {
super.unconfigureEditor();
}
public Dimension getMinimumSize( JComponent c ) {
if ( !isMinimumSizeDirty ) {
return new Dimension( cachedMinimumSize );
}
Dimension size = null;
if ( !comboBox.isEditable() &&
arrowButton != null) {
Insets buttonInsets = arrowButton.getInsets();
Insets insets = comboBox.getInsets();
size = getDisplaySize();
size.width += insets.left + insets.right;
size.width += buttonInsets.right;
size.width += arrowButton.getMinimumSize().width;
size.height += insets.top + insets.bottom;
size.height += buttonInsets.top + buttonInsets.bottom;
}
else if ( comboBox.isEditable() &&
arrowButton != null &&
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