Java 如何使JDialog处于非活动状态
我想使基于JDialog的窗口处于非活动状态,以便禁用所有控件(灰色)。setEnabled(false)只会使您无法单击任何控件,甚至无法关闭窗口。但没有什么会变成灰色。请帮忙 编辑:下面是示例代码Java 如何使JDialog处于非活动状态,java,swing,jdialog,Java,Swing,Jdialog,我想使基于JDialog的窗口处于非活动状态,以便禁用所有控件(灰色)。setEnabled(false)只会使您无法单击任何控件,甚至无法关闭窗口。但没有什么会变成灰色。请帮忙 编辑:下面是示例代码 import javax.swing.JButton; import javax.swing.JDialog; public class Analyzer extends JDialog{ public Analyzer() { JButton but = new JButton("
import javax.swing.JButton;
import javax.swing.JDialog;
public class Analyzer extends JDialog{
public Analyzer() {
JButton but = new JButton("test");
setLayout(null);
but.setBounds(10,10,100,100);
add(but);
setSize( 200, 200);
setVisible(true);
setEnabled(false);
}
public static void main(String[] args) {
new Analyzer();
}
}
实现这一点的典型方法是使用glassPane,但Java 7引入了JLayer,它也应该做到这一点。我知道有两种方法可以做到这一点,一种是递归禁用对话框的组件,另一种是禁用整个对话框(包括拖动对话框的功能):
添加了代码示例。你是说我需要遍历所有控件并手动禁用它们吗?这并不是我们想要的示例。我们希望看到你试图解决这个问题。您是否考虑过使用递归来递归JDialog的容器/组件树,启用或禁用所有找到的组件?我同意气垫船。。。在JDialog包含的每个组件上都禁用了setDisabled。在对话框上调用
setEnabled(false)
应该会禁用它,但它不会移动,并且它的按钮和组件仍然会“look”启用。@HovercraftFullOfEels:这是我在问题=)中提到的,如果我正确阅读OP的问题,这不起作用,因为他希望组件显示禁用的外观。好吧,典型的方法是使用递归。这种方法非常方便,玻璃窗格可以着色,非常简单,鼠标无法访问,两种方法都有一个很好的线程(@Pete great code++)
import java.awt.Component;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.Point;
import java.awt.event.ActionEvent;
import javax.swing.*;
@SuppressWarnings("serial")
public class DisableEg extends JPanel {
public static final String DISABLE_DIALOG_COMPONENTS = "Disable Dialog Components";
public static final String ENABLE_DIALOG_COMPONENTS = "Enable Dialog Components";
public static final String DISABLE_DIALOG = "Disable Dialog";
public static final String ENABLE_DIALOG = "Enable Dialog";
private static final int LOC_SHIFT = 150;
private Analyzer analyzer;
public DisableEg(JFrame frame) {
analyzer = new Analyzer(frame);
analyzer.pack();
analyzer.setLocationRelativeTo(frame);
Point location = analyzer.getLocation();
location = new Point(location.x - LOC_SHIFT, location.y - LOC_SHIFT);
analyzer.setLocation(location);
analyzer.setVisible(true);
add(new JButton(new AbstractAction(DISABLE_DIALOG_COMPONENTS) {
@Override
public void actionPerformed(ActionEvent evt) {
AbstractButton btn = (AbstractButton) evt.getSource();
if (btn.getText().equals(DISABLE_DIALOG_COMPONENTS)) {
btn.setText(ENABLE_DIALOG_COMPONENTS);
analyzer.setComponentEnabled(false);
} else {
btn.setText(DISABLE_DIALOG_COMPONENTS);
analyzer.setComponentEnabled(true);
}
}
}));
add(new JButton(new AbstractAction(DISABLE_DIALOG) {
@Override
public void actionPerformed(ActionEvent evt) {
AbstractButton btn = (AbstractButton) evt.getSource();
if (btn.getText().equals(DISABLE_DIALOG)) {
btn.setText(ENABLE_DIALOG);
analyzer.setEnabled(false);
} else {
btn.setText(DISABLE_DIALOG);
analyzer.setEnabled(true);
}
}
}));
}
private static void createAndShowGui() {
JFrame frame = new JFrame("Disable Example");
DisableEg mainPanel = new DisableEg(frame);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().add(mainPanel);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
createAndShowGui();
}
});
}
}
@SuppressWarnings("serial")
class Analyzer extends JDialog {
public Analyzer(JFrame frame) {
super(frame, "Analyzer Dialog", false);
JButton but = new JButton("test");
setLayout(new FlowLayout());
add(but);
setPreferredSize(new Dimension(200, 200));
}
public void setComponentEnabled(boolean enabled) {
setComponentEnabled(enabled, getContentPane());
// !! if you have menus to disable, you may need instead
// setComponentEnabled(enabled, this); // !!
}
private void setComponentEnabled(boolean enabled, Component component) {
component.setEnabled(enabled);
if (component instanceof Container) {
Component[] components = ((Container) component).getComponents();
if (components != null && components.length > 0) {
for (Component heldComponent : components) {
setComponentEnabled(enabled, heldComponent);
}
}
}
}
}