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Java 在JFileChooser内设置滚动条的RTL方向?_Java_Swing_Jfilechooser_Right To Left - Fatal编程技术网

Java 在JFileChooser内设置滚动条的RTL方向?

Java 在JFileChooser内设置滚动条的RTL方向?,java,swing,jfilechooser,right-to-left,Java,Swing,Jfilechooser,Right To Left,我有一个JFileChooser,我想让它从右向左,为此我使用: applyComponentOrientation(ComponentOrientation.RIGHT_TO_LEFT); 但一个问题出现了。尽管JFileChooser对话框的RTL方向正确,但水平滚动条仍设置为左侧。请看这张图片: 我怎样才能修好它 以下是SSCCE: import javax.swing.JOptionPane; import javax.swing.UIManager; import javax.sw

我有一个JFileChooser,我想让它从右向左,为此我使用:

applyComponentOrientation(ComponentOrientation.RIGHT_TO_LEFT);
但一个问题出现了。尽管JFileChooser对话框的RTL方向正确,但水平滚动条仍设置为左侧。请看这张图片:

我怎样才能修好它

以下是SSCCE:

import javax.swing.JOptionPane;
import javax.swing.UIManager;
import javax.swing.JFileChooser;
import javax.swing.filechooser.FileNameExtensionFilter;
import javax.swing.filechooser.FileView;
import java.io.File;
import java.awt.ComponentOrientation;
import java.awt.Dimension;
public class MyFileChooser extends JFileChooser
{
    private String extension;
    private String title;
    public MyFileChooser(String extension, String title)
    {
        super();
        this.extension = extension;
        this.title = title;
        addChoosableFileFilter(new FileNameExtensionFilter(String.format("(*.%1$s) فقط %1$s ملفات", extension), extension));
        applyComponentOrientation(ComponentOrientation.RIGHT_TO_LEFT);
    }

    @Override public String getDialogTitle()
    {
        return title;
    }
}
Main:

    import java.awt.*;
    import javax.swing.*;
    import javax.swing.border.*;
    import java.awt.event.*;
    public class MainFrame extends JFrame implements ActionListener
    {
        public MyFileChooser chooser;
        public MainFrame()
        {
            super("Main Frame");
            setDefaultCloseOperation(EXIT_ON_CLOSE);
            try{ UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());}
            catch(Exception e){ System.out.println("Unable to load Windows look and feel");}
            setPreferredSize(new Dimension(300, 100));
            ((JPanel) getContentPane()).setBorder(new EmptyBorder(13, 13, 13, 13) );
            setLayout(new FlowLayout());
            JButton btn = new JButton("Open");
            btn.setActionCommand("myButton");
            btn.addActionListener(this);
            add(btn);
            JPanel panel = new JPanel();

            chooser = new MyFileChooser("aaa", "The Title");
            chooser.setAcceptAllFileFilterUsed(false);
            chooser.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES);
            chooser.setFileHidingEnabled(false);

            pack();
            setLocationRelativeTo(null);
            setVisible(true);
            setResizable(false);
        }
        public void actionPerformed(ActionEvent e)
        {
            if(e.getActionCommand().equals("myButton"))
            {
                int status = chooser.showOpenDialog(null);
                // blah blah
            }
        }
        public static void main(String[] args)
        {
            new MainFrame();
        }
    }
此外,我考虑了以下解决方案,但没有影响:

JScrollBar scr = new JScrollBar();
scr.applyComponentOrientation(ComponentOrientation.RIGHT_TO_LEFT);
UIManager.put("JScrollPane.ScrollBar", scr);

您尝试调用
UIManager.put(“JScrollPane.ScrollBar”,scr)很好。我认为它不起作用,因为FileChooser会覆盖此设置,或者是在执行此调用之前创建的

我建议您在文件选择器被创建为JContainer之后尝试“发现”它。找到您的滚动条(或者可能是JScrollPane)并调用
applycomponentation
。 我还没有尝试过这个,但我很快就会需要这样的功能,所以我很高兴知道这是否适用于您


祝你好运

。。。。我认为,通过添加到列表中,可以为isVisible()创建列表宁;或者是可显示的。。。并提取JComponents
JFileChooser
(复合组件),然后调用
getMyComponents()

private void getMyComponents(){
组件findList=getJList(选择器);
JList myList=(JList)findList;
//在JList中找到文件名,并随视口视图移动到所需的矩形
组件myScrollPane=getJScrollPane(选择器);
JScrollPane scrollPane=(JScrollPane)myScrollPane;
JViewport=scrollPane.getViewport();
//使用视口视图移动到所需的矩形
}
专用组件getJList(组件组件){
if(comp.getClass()==JList.class){
返回补偿;
}
if(容器的组件实例){
组件[]组件=((容器)comp.getComponents();
对于(int i=0;i
可以是和
private void getMyComponents() {
    Component findList = getJList(chooser);
    JList myList = (JList) findList;
    //find fileName in the JList and move with ViewPort view to the expected Rectangle
    Component myScrollPane = getJScrollPane(chooser);
    JScrollPane scrollPane = (JScrollPane) myScrollPane;
    JViewport vport = scrollPane.getViewport();
    //move with ViewPort view to the expected Rectangle
}

private Component getJList(Component comp) {
    if (comp.getClass() == JList.class) {
        return comp;
    }
    if (comp instanceof Container) {
        Component[] components = ((Container) comp).getComponents();
        for (int i = 0; i < components.length; i++) {
            Component child = getJList(components[i]);
            if (child != null) {
                return child;
            }
        }
    }
    return null;
}

private Component getJScrollPane(Component comp) {
    if (comp.getClass() == JScrollPane.class) {
        return comp;
    }
    if (comp instanceof Container) {
        Component[] components = ((Container) comp).getComponents();
        for (int i = 0; i < components.length; i++) {
            Component child = getJScrollPane(components[i]);
            if (child != null) {
                return child;
            }
        }
    }
    return null;
}