如何增加JFileChooser的大小？ [英] How to increase the size of a JFileChooser?

问题描述

我正在编写一个需要在屏幕分辨率非常高的设备上运行的Java应用程序。我需要显示的唯一UI组件是JFileChooser。

I'm writing a Java app that needs to run on a device with a very high screen resolution. The only UI component that I need to display is a JFileChooser.

由于屏幕分辨率太高，FileChooser显得太小。是否有一个简单的命令我可以使它变大？理想情况下，我希望保持组件的比例相同，以便图标的增长与文本一样多。

Since the screen resolution so high, the FileChooser appears too small. Is there a simple command I can use to make it bigger? Ideally, I'd like to keep the proportions of the components the same, so that the icons grow just as much as the text.

此外，任何更改都很重要仅修改我的应用程序。改变图形大小的全局方法，例如使用较低分辨率或更改系统范围的字体大小，对我来说不是一种选择。

Also, it's important that any changes modify only my application. A global approach to changing the size of the graphics, like using a lower resolution, or changing a system-wide font size, isn't an option for me.

任何想法？

推荐答案

这个类工作正常，可以调整JFileChooser窗口和字体的大小。

This class works fine, both resizing JFileChooser window and fonts.

public class JFileChooserArqs  {

    private Font font = new Font("monospaced",Font.BOLD,16);

    private String fileName;

    public JFileChooserArqs(String title)
    {  
      fileName = null;
      JFileChooser  fc = new JFileChooser(".");
      fc.setPreferredSize(new Dimension(800,600));
      fc.setDialogTitle(title);
      setFileChooserFont(fc.getComponents());  
      int returnVal = fc.showOpenDialog(null);
      if (returnVal == JFileChooser.APPROVE_OPTION) {
          fileName = fc.getSelectedFile().getAbsolutePath();
      }
    }  

    private void setFileChooserFont(Component[] comp)
    {  
      for(int x = 0; x < comp.length; x++)  
      {  
        if(comp[x] instanceof Container) setFileChooserFont(((Container)comp[x]).getComponents());  
        try{comp[x].setFont(font);}  
        catch(Exception e){}//do nothing  
      }  
    }  

    public String obtemNomeArquivo() {
        return fileName;
    }
}

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