JDK8/Java8源码在线阅读
/*
* Copyright (c) 1997, 2006, 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 com.sun.java.swing.plaf.motif;
import java.awt.*;
import javax.swing.*;
import javax.swing.plaf.*;
import javax.swing.border.*;
import javax.swing.plaf.basic.*;
import java.io.Serializable;
import java.awt.event.*;
import java.beans.*;
/**
* ComboBox motif look and feel
* <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. A future release of Swing will provide support for
* long term persistence.
*
* @author Arnaud Weber
*/
public class MotifComboBoxUI extends BasicComboBoxUI implements Serializable {
Icon arrowIcon;
static final int HORIZ_MARGIN = 3;
public static ComponentUI createUI(JComponent c) {
return new MotifComboBoxUI();
}
public void installUI(JComponent c) {
super.installUI(c);
arrowIcon = new MotifComboBoxArrowIcon(UIManager.getColor("controlHighlight"),
UIManager.getColor("controlShadow"),
UIManager.getColor("control"));
Runnable initCode = new Runnable() {
public void run(){
if ( motifGetEditor() != null ) {
motifGetEditor().setBackground( UIManager.getColor( "text" ) );
}
}
};
SwingUtilities.invokeLater( initCode );
}
public Dimension getMinimumSize( JComponent c ) {
if ( !isMinimumSizeDirty ) {
return new Dimension( cachedMinimumSize );
}
Dimension size;
Insets insets = getInsets();
size = getDisplaySize();
size.height += insets.top + insets.bottom;
int buttonSize = iconAreaWidth();
size.width += insets.left + insets.right + buttonSize;
cachedMinimumSize.setSize( size.width, size.height );
isMinimumSizeDirty = false;
return size;
}
protected ComboPopup createPopup() {
return new MotifComboPopup( comboBox );
}
/**
* Overriden to empty the MouseMotionListener.
*/
protected class MotifComboPopup extends BasicComboPopup {
public MotifComboPopup( JComboBox comboBox ) {
super( comboBox );
}
/**
* Motif combo popup should not track the mouse in the list.
*/
public MouseMotionListener createListMouseMotionListener() {
return new MouseMotionAdapter() {};
}
public KeyListener createKeyListener() {
return super.createKeyListener();
}
protected class InvocationKeyHandler extends BasicComboPopup.InvocationKeyHandler {
protected InvocationKeyHandler() {
MotifComboPopup.this.super();
}
}
}
protected void installComponents() {
if ( comboBox.isEditable() ) {
addEditor();
}
comboBox.add( currentValuePane );
}
protected void uninstallComponents() {
removeEditor();
comboBox.removeAll();
}
public void paint(Graphics g, JComponent c) {
boolean hasFocus = comboBox.hasFocus();
Rectangle r;
if (comboBox.isEnabled()) {
g.setColor(comboBox.getBackground());
} else {
g.setColor(UIManager.getColor("ComboBox.disabledBackground"));
}
g.fillRect(0,0,c.getWidth(),c.getHeight());
if ( !comboBox.isEditable() ) {
r = rectangleForCurrentValue();
paintCurrentValue(g,r,hasFocus);
}
r = rectangleForArrowIcon();
arrowIcon.paintIcon(c,g,r.x,r.y);
if ( !comboBox.isEditable() ) {
Border border = comboBox.getBorder();
Insets in;
if ( border != null ) {
in = border.getBorderInsets(comboBox);
}
else {
in = new Insets( 0, 0, 0, 0 );
}
// Draw the separation
if(MotifGraphicsUtils.isLeftToRight(comboBox)) {
r.x -= (HORIZ_MARGIN + 2);
}
else {
r.x += r.width + HORIZ_MARGIN + 1;
}
r.y = in.top;
r.width = 1;
r.height = comboBox.getBounds().height - in.bottom - in.top;
g.setColor(UIManager.getColor("controlShadow"));
g.fillRect(r.x,r.y,r.width,r.height);
r.x++;
g.setColor(UIManager.getColor("controlHighlight"));
g.fillRect(r.x,r.y,r.width,r.height);
}
}
public void paintCurrentValue(Graphics g,Rectangle bounds,boolean hasFocus) {
ListCellRenderer renderer = comboBox.getRenderer();
Component c;
Dimension d;
c = renderer.getListCellRendererComponent(listBox, comboBox.getSelectedItem(), -1, false, false);
c.setFont(comboBox.getFont());
if ( comboBox.isEnabled() ) {
c.setForeground(comboBox.getForeground());
c.setBackground(comboBox.getBackground());
}
else {
c.setForeground(UIManager.getColor("ComboBox.disabledForeground"));
c.setBackground(UIManager.getColor("ComboBox.disabledBackground"));
}
d = c.getPreferredSize();
currentValuePane.paintComponent(g,c,comboBox,bounds.x,bounds.y,
bounds.width,d.height);
}
protected Rectangle rectangleForArrowIcon() {
Rectangle b = comboBox.getBounds();
Border border = comboBox.getBorder();
Insets in;
if ( border != null ) {
in = border.getBorderInsets(comboBox);
}
else {
in = new Insets( 0, 0, 0, 0 );
}
b.x = in.left;
b.y = in.top;
b.width -= (in.left + in.right);
b.height -= (in.top + in.bottom);
if(MotifGraphicsUtils.isLeftToRight(comboBox)) {
b.x = b.x + b.width - HORIZ_MARGIN - arrowIcon.getIconWidth();
}
else {
b.x += HORIZ_MARGIN;
}
b.y = b.y + (b.height - arrowIcon.getIconHeight()) / 2;
b.width = arrowIcon.getIconWidth();
b.height = arrowIcon.getIconHeight();
return b;
}
protected Rectangle rectangleForCurrentValue() {
int width = comboBox.getWidth();
int height = comboBox.getHeight();
Insets insets = getInsets();
if(MotifGraphicsUtils.isLeftToRight(comboBox)) {
return new Rectangle(insets.left, insets.top,
(width - (insets.left + insets.right)) -
iconAreaWidth(),
height - (insets.top + insets.bottom));
}
else {
return new Rectangle(insets.left + iconAreaWidth(), insets.top,
(width - (insets.left + insets.right)) -
iconAreaWidth(),
height - (insets.top + insets.bottom));
}
}
public int iconAreaWidth() {
if ( comboBox.isEditable() )
return arrowIcon.getIconWidth() + (2 * HORIZ_MARGIN);
else
return arrowIcon.getIconWidth() + (3 * HORIZ_MARGIN) + 2;
}
public void configureEditor() {
super.configureEditor();
editor.setBackground( UIManager.getColor( "text" ) );
}
protected LayoutManager createLayoutManager() {
return new ComboBoxLayoutManager();
}
private Component motifGetEditor() {
return editor;
}
/**
* This inner class is marked "public" due to a compiler bug.
* This class should be treated as a "protected" inner class.
* Instantiate it only within subclasses of <FooUI>.
*/
public class ComboBoxLayoutManager extends BasicComboBoxUI.ComboBoxLayoutManager {
public ComboBoxLayoutManager() {
MotifComboBoxUI.this.super();
}
public void layoutContainer(Container parent) {
if ( motifGetEditor() != null ) {
Rectangle cvb = rectangleForCurrentValue();
cvb.x += 1;
cvb.y += 1;
cvb.width -= 1;
cvb.height -= 2;
motifGetEditor().setBounds(cvb);
}
}
}
static class MotifComboBoxArrowIcon implements Icon, Serializable {
private Color lightShadow;
private Color darkShadow;
private Color fill;
public MotifComboBoxArrowIcon(Color lightShadow, Color darkShadow, Color fill) {
this.lightShadow = lightShadow;
this.darkShadow = darkShadow;
this.fill = fill;
}
public void paintIcon(Component c, Graphics g, int xo, int yo) {
int w = getIconWidth();
int h = getIconHeight();
g.setColor(lightShadow);
g.drawLine(xo, yo, xo+w-1, yo);
g.drawLine(xo, yo+1, xo+w-3, yo+1);
g.setColor(darkShadow);
g.drawLine(xo+w-2, yo+1, xo+w-1, yo+1);
for ( int x = xo+1, y = yo+2, dx = w-6; y+1 < yo+h; y += 2 ) {
g.setColor(lightShadow);
g.drawLine(x, y, x+1, y);
g.drawLine(x, y+1, x+1, y+1);
if ( dx > 0 ) {
g.setColor(fill);
g.drawLine(x+2, y, x+1+dx, y);
g.drawLine(x+2, y+1, x+1+dx, y+1);
}
g.setColor(darkShadow);
g.drawLine(x+dx+2, y, x+dx+3, y);
/**代码未完, 请加载全部代码(NowJava.com).**/
关注时代Java
关注时代Java