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/*
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* Copyright (c) 1998, 2005, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package javax.swing.plaf.metal;
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import java.awt.*;
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import java.awt.event.*;
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import javax.swing.*;
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import javax.swing.plaf.*;
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import javax.swing.border.*;
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import javax.swing.plaf.basic.*;
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import java.io.Serializable;
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import java.beans.*;
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/**
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* Metal UI for JComboBox
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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
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* appropriate for short term storage or RMI between applications running
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* the same version of Swing. As of 1.4, support for long term storage
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* of all JavaBeans<sup><font size="-2">TM</font></sup>
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* has been added to the <code>java.beans</code> package.
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* Please see {@link java.beans.XMLEncoder}.
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*
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* @see MetalComboBoxEditor
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* @see MetalComboBoxButton
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* @author Tom Santos
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*/
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public class MetalComboBoxUI extends BasicComboBoxUI {
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public static ComponentUI createUI(JComponent c) {
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return new MetalComboBoxUI();
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}
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public void paint(Graphics g, JComponent c) {
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if (MetalLookAndFeel.usingOcean()) {
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super.paint(g, c);
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}
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}
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/**
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* If necessary paints the currently selected item.
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*
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* @param g Graphics to paint to
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* @param bounds Region to paint current value to
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* @param hasFocus whether or not the JComboBox has focus
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* @throws NullPointerException if any of the arguments are null.
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* @since 1.5
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*/
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public void paintCurrentValue(Graphics g, Rectangle bounds,
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boolean hasFocus) {
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// This is really only called if we're using ocean.
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if (MetalLookAndFeel.usingOcean()) {
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bounds.x += 2;
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bounds.width -= 3;
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if (arrowButton != null) {
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Insets buttonInsets = arrowButton.getInsets();
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bounds.y += buttonInsets.top;
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bounds.height -= (buttonInsets.top + buttonInsets.bottom);
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}
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else {
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bounds.y += 2;
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bounds.height -= 4;
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}
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super.paintCurrentValue(g, bounds, hasFocus);
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}
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else if (g == null || bounds == null) {
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throw new NullPointerException(
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"Must supply a non-null Graphics and Rectangle");
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}
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}
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/**
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* If necessary paints the background of the currently selected item.
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*
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* @param g Graphics to paint to
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* @param bounds Region to paint background to
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* @param hasFocus whether or not the JComboBox has focus
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* @throws NullPointerException if any of the arguments are null.
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* @since 1.5
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*/
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public void paintCurrentValueBackground(Graphics g, Rectangle bounds,
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boolean hasFocus) {
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// This is really only called if we're using ocean.
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if (MetalLookAndFeel.usingOcean()) {
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g.setColor(MetalLookAndFeel.getControlDarkShadow());
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g.drawRect(bounds.x, bounds.y, bounds.width, bounds.height - 1);
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g.setColor(MetalLookAndFeel.getControlShadow());
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g.drawRect(bounds.x + 1, bounds.y + 1, bounds.width - 2,
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bounds.height - 3);
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if (hasFocus && !isPopupVisible(comboBox) &&
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arrowButton != null) {
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g.setColor(listBox.getSelectionBackground());
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Insets buttonInsets = arrowButton.getInsets();
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if (buttonInsets.top > 2) {
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g.fillRect(bounds.x + 2, bounds.y + 2, bounds.width - 3,
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buttonInsets.top - 2);
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}
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if (buttonInsets.bottom > 2) {
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g.fillRect(bounds.x + 2, bounds.y + bounds.height -
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buttonInsets.bottom, bounds.width - 3,
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buttonInsets.bottom - 2);
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}
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}
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}
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else if (g == null || bounds == null) {
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throw new NullPointerException(
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"Must supply a non-null Graphics and Rectangle");
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}
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}
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/**
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* Returns the baseline.
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*
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* @throws NullPointerException {@inheritDoc}
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* @throws IllegalArgumentException {@inheritDoc}
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* @see javax.swing.JComponent#getBaseline(int, int)
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* @since 1.6
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*/
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public int getBaseline(JComponent c, int width, int height) {
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int baseline;
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if (MetalLookAndFeel.usingOcean()) {
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height -= 4;
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baseline = super.getBaseline(c, width, height);
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if (baseline >= 0) {
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baseline += 2;
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}
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}
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else {
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baseline = super.getBaseline(c, width, height);
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}
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return baseline;
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}
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protected ComboBoxEditor createEditor() {
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return new MetalComboBoxEditor.UIResource();
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}
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protected ComboPopup createPopup() {
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return super.createPopup();
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}
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protected JButton createArrowButton() {
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boolean iconOnly = (comboBox.isEditable() ||
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MetalLookAndFeel.usingOcean());
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JButton button = new MetalComboBoxButton( comboBox,
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new MetalComboBoxIcon(),
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iconOnly,
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currentValuePane,
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listBox );
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button.setMargin( new Insets( 0, 1, 1, 3 ) );
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if (MetalLookAndFeel.usingOcean()) {
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// Disabled rollover effect.
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button.putClientProperty(MetalBorders.NO_BUTTON_ROLLOVER,
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Boolean.TRUE);
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}
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updateButtonForOcean(button);
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return button;
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}
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/**
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* Resets the necessary state on the ComboBoxButton for ocean.
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*/
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private void updateButtonForOcean(JButton button) {
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if (MetalLookAndFeel.usingOcean()) {
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// Ocean renders the focus in a different way, this
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// would be redundant.
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button.setFocusPainted(comboBox.isEditable());
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}
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}
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public PropertyChangeListener createPropertyChangeListener() {
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return new MetalPropertyChangeListener();
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}
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/**
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* This inner class is marked "public" due to a compiler bug.
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* This class should be treated as a "protected" inner class.
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* Instantiate it only within subclasses of <FooUI>.
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*/
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public class MetalPropertyChangeListener extends BasicComboBoxUI.PropertyChangeHandler {
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public void propertyChange(PropertyChangeEvent e) {
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super.propertyChange( e );
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String propertyName = e.getPropertyName();
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if ( propertyName == "editable" ) {
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if(arrowButton instanceof MetalComboBoxButton) {
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MetalComboBoxButton button = (MetalComboBoxButton)arrowButton;
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button.setIconOnly( comboBox.isEditable() ||
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MetalLookAndFeel.usingOcean() );
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}
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comboBox.repaint();
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updateButtonForOcean(arrowButton);
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} else if ( propertyName == "background" ) {
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Color color = (Color)e.getNewValue();
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arrowButton.setBackground(color);
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listBox.setBackground(color);
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} else if ( propertyName == "foreground" ) {
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Color color = (Color)e.getNewValue();
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arrowButton.setForeground(color);
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listBox.setForeground(color);
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}
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}
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}
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/**
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* As of Java 2 platform v1.4 this method is no longer used. Do not call or
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* override. All the functionality of this method is in the
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* MetalPropertyChangeListener.
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*
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* @deprecated As of Java 2 platform v1.4.
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*/
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@Deprecated
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protected void editablePropertyChanged( PropertyChangeEvent e ) { }
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protected LayoutManager createLayoutManager() {
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return new MetalComboBoxLayoutManager();
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}
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/**
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* This inner class is marked "public" due to a compiler bug.
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* This class should be treated as a "protected" inner class.
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* Instantiate it only within subclasses of <FooUI>.
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*/
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public class MetalComboBoxLayoutManager extends BasicComboBoxUI.ComboBoxLayoutManager {
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public void layoutContainer( Container parent ) {
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layoutComboBox( parent, this );
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}
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public void superLayout( Container parent ) {
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super.layoutContainer( parent );
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}
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}
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// This is here because of a bug in the compiler.
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// When a protected-inner-class-savvy compiler comes out we
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// should move this into MetalComboBoxLayoutManager.
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public void layoutComboBox( Container parent, MetalComboBoxLayoutManager manager ) {
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if (comboBox.isEditable() && !MetalLookAndFeel.usingOcean()) {
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manager.superLayout( parent );
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return;
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}
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if (arrowButton != null) {
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if (MetalLookAndFeel.usingOcean() ) {
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Insets insets = comboBox.getInsets();
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int buttonWidth = arrowButton.getMinimumSize().width;
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arrowButton.setBounds(MetalUtils.isLeftToRight(comboBox)
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? (comboBox.getWidth() - insets.right - buttonWidth)
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: insets.left,
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insets.top, buttonWidth,
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comboBox.getHeight() - insets.top - insets.bottom);
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}
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else {
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Insets insets = comboBox.getInsets();
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int width = comboBox.getWidth();
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int height = comboBox.getHeight();
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arrowButton.setBounds( insets.left, insets.top,
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width - (insets.left + insets.right),
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height - (insets.top + insets.bottom) );
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}
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}
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if (editor != null && MetalLookAndFeel.usingOcean()) {
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Rectangle cvb = rectangleForCurrentValue();
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editor.setBounds(cvb);
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}
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}
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/**
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* As of Java 2 platform v1.4 this method is no
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* longer used.
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*
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* @deprecated As of Java 2 platform v1.4.
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*/
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@Deprecated
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protected void removeListeners() {
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if ( propertyChangeListener != null ) {
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comboBox.removePropertyChangeListener( propertyChangeListener );
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}
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}
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// These two methods were overloaded and made public. This was probably a
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// mistake in the implementation. The functionality that they used to
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// provide is no longer necessary and should be removed. However,
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// removing them will create an uncompatible API change.
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public void configureEditor() {
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super.configureEditor();
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}
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public void unconfigureEditor() {
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super.unconfigureEditor();
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}
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public Dimension getMinimumSize( JComponent c ) {
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if ( !isMinimumSizeDirty ) {
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return new Dimension( cachedMinimumSize );
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}
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Dimension size = null;
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if ( !comboBox.isEditable() &&
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arrowButton != null) {
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Insets buttonInsets = arrowButton.getInsets();
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Insets insets = comboBox.getInsets();
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size = getDisplaySize();
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size.width += insets.left + insets.right;
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size.width += buttonInsets.right;
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size.width += arrowButton.getMinimumSize().width;
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size.height += insets.top + insets.bottom;
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size.height += buttonInsets.top + buttonInsets.bottom;
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}
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else if ( comboBox.isEditable() &&
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arrowButton != null &&
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editor != null ) {
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size = super.getMinimumSize( c );
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Insets margin = arrowButton.getMargin();
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size.height += margin.top + margin.bottom;
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size.width += margin.left + margin.right;
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}
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else {
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size = super.getMinimumSize( c );
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}
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cachedMinimumSize.setSize( size.width, size.height );
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isMinimumSizeDirty = false;
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return new Dimension( cachedMinimumSize );
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}
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/**
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* This inner class is marked "public" due to a compiler bug.
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* This class should be treated as a "protected" inner class.
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* Instantiate it only within subclasses of <FooUI>.
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*
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* This class is now obsolete and doesn't do anything and
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* is only included for backwards API compatibility. Do not call or
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* override.
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*
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* @deprecated As of Java 2 platform v1.4.
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*/
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@Deprecated
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public class MetalComboPopup extends BasicComboPopup {
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public MetalComboPopup( JComboBox cBox) {
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super( cBox );
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}
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// This method was overloaded and made public. This was probably
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// mistake in the implementation. The functionality that they used to
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// provide is no longer necessary and should be removed. However,
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// removing them will create an uncompatible API change.
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public void delegateFocus(MouseEvent e) {
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super.delegateFocus(e);
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}
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}
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}
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