这是我之前的问题的延续，我问如何在系统托盘中放置一些东西。
在社区的一些帮助下，我可以做到这一点。但是我无法做的是JTextField更改JWindow.
有JWindow一个JPanel，一切都放在里面，JPanel包括Remind Mt At。但是，我无法在其中输入任何内容。
正确接收事件，因为它应该在鼠标进入时为白色，并在鼠标退出时返回默认颜色。 JTextFieldsetEditable(true)JTextField
有什么解决方法吗？
SSCCE
package demo;
import java.awt.*;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.io.InputStream;
import javax.imageio.ImageIO;
import javax.sound.sampled.*;
import javax.swing.*;
import javax.swing.border.BevelBorder;
import example.Kernel32;
public class SSCCE {
JPopupMenu popup = new JPopupMenu();
JMenuItem exit = new JMenuItem("Exit");
JWindow window = new JWindow();
JPanel panel = new JPanel();
int remindMeAt = 55;
Kernel32.SYSTEM_POWER_STATUS batteryStatus = new Kernel32.SYSTEM_POWER_STATUS();
Clip buzzer;
AudioInputStream in;
JLabel ACLineStatus = new JLabel();
JLabel batteryCharge = new JLabel();
JTextField enterReminder = new JTextField(3);
Color defaultColor;
String onACPower;
String charge;
String status;
boolean keepLooping = true;
boolean doRemind = true;
boolean isCharging;
boolean aboveThreshold;
boolean remindedOnce = false;
//------------------------------------------------------------------------------
public static void main(String[] args) {
new SSCCE();
}
//------------------------------------------------------------------------------
public SSCCE(){
if(SystemTray.isSupported()){
setupGUI();
}
}
//------------------------------------------------------------------------------
public void setupGUI(){
try{
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
InputStream in = BatteryBeeperSystemTray.class.
getResourceAsStream("/images/battery_smaller.png");
TrayIcon t = new TrayIcon(ImageIO.read(in));
t.setToolTip("BatteryBeeper");
SystemTray.getSystemTray().add(t);
}catch(Exception e){
}
panel.setLayout(new GridBagLayout());
GridBagConstraints gbc = new GridBagConstraints();
defaultColor = window.getBackground();
Kernel32.INSTANCE.GetSystemPowerStatus(batteryStatus);
onACPower = batteryStatus.getACLineStatusString();
charge = batteryStatus.getBatteryLifePercent();
if(onACPower.equalsIgnoreCase("offline")){
onACPower = "Battery";
}else{
onACPower = "AC Power";
charge = "---";
}
ACLineStatus.setText(onACPower);
ACLineStatus.setPreferredSize(new Dimension(150,40));
ACLineStatus.setBorder(BorderFactory.createTitledBorder("Operating On"));
gbc.gridx = 0;
gbc.gridy = 0;
gbc.gridwidth = 7;
gbc.gridheight = 1;
gbc.fill = GridBagConstraints.BOTH;
panel.add(ACLineStatus,gbc);
batteryCharge.setText(charge);
batteryCharge.setBorder(BorderFactory.createTitledBorder("Current " +
"Charge"));
gbc.gridy++;
panel.add(batteryCharge,gbc);
panel.setBorder(BorderFactory.createBevelBorder(BevelBorder.RAISED));
gbc.gridy++;
enterReminder.setEditable(true);
enterReminder.requestFocusInWindow();
enterReminder.setText(Integer.toString(remindMeAt));
enterReminder.addMouseListener(new TextHandler());
enterReminder.setBackground(window.getBackground());
enterReminder.setBorder(BorderFactory.createTitledBorder("Remind Me" +
" At"));
panel.add(enterReminder,gbc);
window.add(panel);
window.pack();
window.setLocationRelativeTo(null);
window.setVisible(true);
}
//------------------------------------------------------------------------------
public void checkIfReminderChanged(){
//TODO DEFINE
}
//------------------------------------------------------------------------------
public class TextHandler extends MouseAdapter{
@Override
public void mouseEntered(MouseEvent e){
enterReminder.setBackground(Color.WHITE);
}
//------------------------------------------------------------------------------
@Override
public void mouseExited(MouseEvent e){
enterReminder.setBackground(defaultColor);
checkIfReminderChanged();
}
}
//------------------------------------------------------------------------------
}
你还需要什么
package example;
import com.sun.jna.Native;
import com.sun.jna.Structure;
import com.sun.jna.win32.StdCallLibrary;
import java.util.*;
public interface Kernel32 extends StdCallLibrary {
public Kernel32 INSTANCE = (Kernel32) Native.loadLibrary("Kernel32", Kernel32.class);
/**
* @see http://msdn2.microsoft.com/en-us/library/aa373232.aspx
*/
public class SYSTEM_POWER_STATUS extends Structure {
public byte ACLineStatus;
public byte BatteryFlag;
public byte BatteryLifePercent;
public byte Reserved1;
public int BatteryLifeTime;
public int BatteryFullLifeTime;
@Override
protected List<String> getFieldOrder() {
ArrayList<String> fields = new ArrayList<String>();
fields.add("ACLineStatus");
fields.add("BatteryFlag");
fields.add("BatteryFullLifeTime");
fields.add("BatteryLifePercent");
fields.add("BatteryLifeTime");
fields.add("Reserved1");
return fields;
}
/**
* The AC power status
*/
public String getACLineStatusString() {
switch (ACLineStatus) {
case (0): return "Offline";
case (1): return "Online";
default: return "Unknown";
}
}
/**
* The battery charge status
*/
public String getBatteryFlagString() {
switch (BatteryFlag) {
case (1): return "High, more than 66 percent";
case (2): return "Low, less than 33 percent";
case (4): return "Critical, less than five percent";
case (8): return "Charging";
case ((byte) 128): return "No system battery";
default: return "Unknown";
}
}
/**
* The percentage of full battery charge remaining
*/
public String getBatteryLifePercent() {
return (BatteryLifePercent == (byte) 255) ? "Unknown" : BatteryLifePercent + "%";
}
/**
* The number of seconds of battery life remaining
*/
public String getBatteryLifeTime() {
return (BatteryLifeTime == -1) ? "Unknown" : BatteryLifeTime + " seconds";
}
/**
* The number of seconds of battery life when at full charge
*/
public String getBatteryFullLifeTime() {
return (BatteryFullLifeTime == -1) ? "Unknown" : BatteryFullLifeTime + " seconds";
}
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append("ACLineStatus: " + getACLineStatusString() + "\n");
sb.append("Battery Flag: " + getBatteryFlagString() + "\n");
sb.append("Battery Life: " + getBatteryLifePercent() + "\n");
sb.append("Battery Left: " + getBatteryLifeTime() + "\n");
sb.append("Battery Full: " + getBatteryFullLifeTime() + "\n");
return sb.toString();
}
}
public int GetSystemPowerStatus(SYSTEM_POWER_STATUS result);
}