JDK14/Java14源码在线阅读
/*
* Copyright (c) 2009, 2017, 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 sun.awt.X11;
import java.awt.BorderLayout;
import java.awt.Button;
import java.awt.Color;
import java.awt.Component;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Frame;
import java.awt.GridLayout;
import java.awt.Image;
import java.awt.Insets;
import java.awt.Label;
import java.awt.MouseInfo;
import java.awt.Panel;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.Toolkit;
import java.awt.Window;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.text.BreakIterator;
import java.util.concurrent.ArrayBlockingQueue;
import sun.awt.SunToolkit;
import sun.awt.UNIXToolkit;
/**
* An utility window class. This is a base class for Tooltip and Balloon.
*/
@SuppressWarnings("serial") // JDK-implementation class
public abstract class InfoWindow extends Window {
private Container container;
private Closer closer;
protected InfoWindow(Frame parent, Color borderColor) {
super(parent);
setType(Window.Type.POPUP);
container = new Container() {
@Override
public Insets getInsets() {
return new Insets(1, 1, 1, 1);
}
};
setLayout(new BorderLayout());
setBackground(borderColor);
add(container, BorderLayout.CENTER);
container.setLayout(new BorderLayout());
closer = new Closer();
}
public Component add(Component c) {
container.add(c, BorderLayout.CENTER);
return c;
}
protected void setCloser(Runnable action, int time) {
closer.set(action, time);
}
// Must be executed on EDT.
@SuppressWarnings("deprecation")
protected void show(Point corner, int indent) {
assert SunToolkit.isDispatchThreadForAppContext(this);
pack();
Dimension size = getSize();
Rectangle scrSize = getGraphicsConfiguration().getBounds();
if (corner.x < scrSize.x + scrSize.width/2 && corner.y < scrSize.y + scrSize.height/2) { // 1st square
setLocation(corner.x + indent, corner.y + indent);
} else if (corner.x >= scrSize.x + scrSize.width/2 && corner.y < scrSize.y + scrSize.height/2) { // 2nd square
setLocation(corner.x - indent - size.width, corner.y + indent);
} else if (corner.x < scrSize.x + scrSize.width/2 && corner.y >= scrSize.y + scrSize.height/2) { // 3rd square
setLocation(corner.x + indent, corner.y - indent - size.height);
} else if (corner.x >= scrSize.x +scrSize.width/2 && corner.y >= scrSize.y +scrSize.height/2) { // 4th square
setLocation(corner.x - indent - size.width, corner.y - indent - size.height);
}
super.show();
closer.schedule();
}
@SuppressWarnings("deprecation")
public void hide() {
closer.close();
}
private class Closer implements Runnable {
Runnable action;
int time;
public void run() {
doClose();
}
void set(Runnable action, int time) {
this.action = action;
this.time = time;
}
void schedule() {
XToolkit.schedule(this, time);
}
void close() {
XToolkit.remove(this);
doClose();
}
// WARNING: this method may be executed on Toolkit thread.
@SuppressWarnings("deprecation")
private void doClose() {
SunToolkit.executeOnEventHandlerThread(InfoWindow.this, new Runnable() {
public void run() {
InfoWindow.super.hide();
invalidate();
if (action != null) {
action.run();
}
}
});
}
}
private interface LiveArguments {
/** Whether the target of the InfoWindow is disposed. */
boolean isDisposed();
/** The bounds of the target of the InfoWindow. */
Rectangle getBounds();
}
@SuppressWarnings("serial") // JDK-implementation class
public static class Tooltip extends InfoWindow {
public interface LiveArguments extends InfoWindow.LiveArguments {
/** The tooltip to be displayed. */
String getTooltipString();
}
private final Object target;
private final LiveArguments liveArguments;
private final Label textLabel = new Label("");
private final Runnable starter = new Runnable() {
public void run() {
display();
}};
private static final int TOOLTIP_SHOW_TIME = 10000;
private static final int TOOLTIP_START_DELAY_TIME = 1000;
private static final int TOOLTIP_MAX_LENGTH = 64;
private static final int TOOLTIP_MOUSE_CURSOR_INDENT = 5;
private static final Color TOOLTIP_BACKGROUND_COLOR = new Color(255, 255, 220);
private static final Font TOOLTIP_TEXT_FONT = XWindow.getDefaultFont();
public Tooltip(Frame parent, Object target,
LiveArguments liveArguments)
{
super(parent, Color.black);
this.target = target;
this.liveArguments = liveArguments;
XTrayIconPeer.suppressWarningString(this);
setCloser(null, TOOLTIP_SHOW_TIME);
textLabel.setBackground(TOOLTIP_BACKGROUND_COLOR);
textLabel.setFont(TOOLTIP_TEXT_FONT);
add(textLabel);
}
/*
* WARNING: this method is executed on Toolkit thread!
*/
private void display() {
// Execute on EDT to avoid deadlock (see 6280857).
SunToolkit.executeOnEventHandlerThread(target, new Runnable() {
public void run() {
if (liveArguments.isDisposed()) {
return;
}
String tooltipString = liveArguments.getTooltipString();
if (tooltipString == null) {
return;
} else if (tooltipString.length() > TOOLTIP_MAX_LENGTH) {
textLabel.setText(tooltipString.substring(0, TOOLTIP_MAX_LENGTH));
} else {
textLabel.setText(tooltipString);
}
Point pointer = AccessController.doPrivileged(
new PrivilegedAction<Point>() {
public Point run() {
if (!isPointerOverTrayIcon(liveArguments.getBounds())) {
return null;
}
return MouseInfo.getPointerInfo().getLocation();
}
});
if (pointer == null) {
return;
}
show(new Point(pointer.x, pointer.y), TOOLTIP_MOUSE_CURSOR_INDENT);
}
});
}
public void enter() {
XToolkit.schedule(starter, TOOLTIP_START_DELAY_TIME);
}
public void exit() {
XToolkit.remove(starter);
if (isVisible()) {
hide();
}
}
private boolean isPointerOverTrayIcon(Rectangle trayRect) {
Point p = MouseInfo.getPointerInfo().getLocation();
return !(p.x < trayRect.x || p.x > (trayRect.x + trayRect.width) ||
p.y < trayRect.y || p.y > (trayRect.y + trayRect.height));
}
}
@SuppressWarnings("serial") // JDK-implementation class
public static class Balloon extends InfoWindow {
public interface LiveArguments extends InfoWindow.LiveArguments {
/** The action to be performed upon clicking the baloon. */
String getActionCommand();
}
private final LiveArguments liveArguments;
private final Object target;
private static final int BALLOON_SHOW_TIME = 10000;
private static final int BALLOON_TEXT_MAX_LENGTH = 256;
private static final int BALLOON_WORD_LINE_MAX_LENGTH = 16;
private static final int BALLOON_WORD_LINE_MAX_COUNT = 4;
private static final int BALLOON_ICON_WIDTH = 32;
private static final int BALLOON_ICON_HEIGHT = 32;
private static final int BALLOON_TRAY_ICON_INDENT = 0;
private static final Color BALLOON_CAPTION_BACKGROUND_COLOR = new Color(200, 200 ,255);
private static final Font BALLOON_CAPTION_FONT = new Font(Font.DIALOG, Font.BOLD, 12);
private Panel mainPanel = new Panel();
private Panel captionPanel = new Panel();
private Label captionLabel = new Label("");
private Button closeButton = new Button("X");
private Panel textPanel = new Panel();
private XTrayIconPeer.IconCanvas iconCanvas = new XTrayIconPeer.IconCanvas(BALLOON_ICON_WIDTH, BALLOON_ICON_HEIGHT);
private Label[] lineLabels = new Label[BALLOON_WORD_LINE_MAX_COUNT];
private ActionPerformer ap = new ActionPerformer();
private Image iconImage;
private Image errorImage;
private Image warnImage;
private Image infoImage;
private boolean gtkImagesLoaded;
private Displayer displayer = new Displayer();
public Balloon(Frame parent, Object target, LiveArguments liveArguments) {
super(parent, new Color(90, 80 ,190));
this.liveArguments = liveArguments;
this.target = target;
XTrayIconPeer.suppressWarningString(this);
setCloser(new Runnable() {
public void run() {
if (textPanel != null) {
textPanel.removeAll();
textPanel.setSize(0, 0);
iconCanvas.setSize(0, 0);
XToolkit.awtLock();
try {
displayer.isDisplayed = false;
XToolkit.awtLockNotifyAll();
} finally {
XToolkit.awtUnlock();
}
}
}
}, BALLOON_SHOW_TIME);
add(mainPanel);
captionLabel.setFont(BALLOON_CAPTION_FONT);
captionLabel.addMouseListener(ap);
captionPanel.setLayout(new BorderLayout());
captionPanel.add(captionLabel, BorderLayout.WEST);
captionPanel.add(closeButton, BorderLayout.EAST);
captionPanel.setBackground(BALLOON_CAPTION_BACKGROUND_COLOR);
captionPanel.addMouseListener(ap);
closeButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
hide();
}
});
mainPanel.setLayout(new BorderLayout());
mainPanel.setBackground(Color.white);
mainPanel.add(captionPanel, BorderLayout.NORTH);
mainPanel.add(iconCanvas, BorderLayout.WEST);
mainPanel.add(textPanel, BorderLayout.CENTER);
iconCanvas.addMouseListener(ap);
for (int i = 0; i < BALLOON_WORD_LINE_MAX_COUNT; i++) {
lineLabels[i] = new Label();
lineLabels[i].addMouseListener(ap);
lineLabels[i].setBackground(Color.white);
}
displayer.thread.start();
}
public void display(String caption, String text, String messageType) {
if (!gtkImagesLoaded) {
loadGtkImages();
}
displayer.display(caption, text, messageType);
}
private void _display(String caption, String text, String messageType) {
captionLabel.setText(caption);
BreakIterator iter = BreakIterator.getWordInstance();
if (text != null) {
iter.setText(text);
int start = iter.first(), end;
int nLines = 0;
do {
end = iter.next();
if (end == BreakIterator.DONE ||
text.substring(start, end).length() >= 50)
{
lineLabels[nLines].setText(text.substring(start, end == BreakIterator.DONE ?
iter.last() : end));
textPanel.add(lineLabels[nLines++]);
start = end;
}
if (nLines == BALLOON_WORD_LINE_MAX_COUNT) {
if (end != BreakIterator.DONE) {
lineLabels[nLines - 1].setText(
new String(lineLabels[nLines - 1].getText() + " ..."));
}
break;
}
} while (end != BreakIterator.DONE);
textPanel.setLayout(new GridLayout(nLines, 1));
}
if ("ERROR".equals(messageType)) {
iconImage = errorImage;
} else if ("WARNING".equals(messageType)) {
iconImage = warnImage;
} else if ("INFO".equals(messageType)) {
iconImage = infoImage;
} else {
iconImage = null;
}
if (iconImage != null) {
Dimension tpSize = textPanel.getSize();
iconCanvas.setSize(BALLOON_ICON_WIDTH, (BALLOON_ICON_HEIGHT > tpSize.height ?
BALLOON_ICON_HEIGHT : tpSize.height));
iconCanvas.validate();
}
SunToolkit.executeOnEventHandlerThread(target, new Runnable() {
public void run() {
if (liveArguments.isDisposed()) {
return;
}
Point parLoc = getParent().getLocationOnScreen();
Dimension parSize = getParent().getSize();
show(new Point(parLoc.x + parSize.width/2, parLoc.y + parSize.height/2),
BALLOON_TRAY_ICON_INDENT);
if (iconImage != null) {
iconCanvas.updateImage(iconImage); // call it after the show(..) above
}
}
});
}
public void dispose() {
displayer.thread.interrupt();
super.dispose();
}
private void loadGtkImages() {
if (!gtkImagesLoaded) {
//check whether the gtk version is >= 3.10 as the Icon names were
//changed from this release
UNIXToolkit tk = (UNIXToolkit) Toolkit.getDefaultToolkit();
if (tk.checkGtkVersion(3, 10, 0)) {
errorImage = (Image) tk.getDesktopProperty(
"gtk.icon.dialog-error.6.rtl");
warnImage = (Image) tk.getDesktopProperty(
"gtk.icon.dialog-warning.6.rtl");
infoImage = (Image) tk.getDesktopProperty(
"gtk.icon.dialog-information.6.rtl");
} else {
errorImage = (Image) tk.getDesktopProperty(
"gtk.icon.gtk-dialog-error.6.rtl");
warnImage = (Image) tk.getDesktopProperty(
"gtk.icon.gtk-dialog-warning.6.rtl");
infoImage = (Image) tk.getDesktopProperty(
"gtk.icon.gtk-dialog-info.6.rtl");
}
gtkImagesLoaded = true;
}
}
@SuppressWarnings("deprecation")
private class ActionPerformer extends MouseAdapter {
public void mouseClicked(MouseEvent e) {
// hide the balloon by any click
hide();
if (e.getButton() == MouseEvent.BUTTON1) {
ActionEvent aev = new ActionEvent(target, ActionEvent.ACTION_PERFORMED,
liveArguments.getActionCommand(),
e.getWhen(), e.getModifiers());
XToolkit.postEvent(XToolkit.targetToAppContext(aev.getSource()), aev);
/**代码未完, 请加载全部代码(NowJava.com).**/
关注时代Java
关注时代Java