JDialog vs JOptionPane vs JPanel正确的屏幕调整大小

Question

当我需要向用户显示一些非常复杂的界面时，保存或取消按钮并需要此界面正确处理不同的显示器分辨率时，我遇到了无穷无尽的问题。 假设这个接口需要适合17个JTextFields和一个1280 x 768显示器（我13英寸笔记本电脑的垂直尺寸为760像素）的可调整大小的JTextArea。

这里是一个SSCCE：

import java.awt.*; 
import javax.swing.*; 

public class OptionPanePanel extends JFrame 
{ 
    private static Container layoutComponents(String title, float alignment) 
    { 
     JPanel container = new JPanel(); 
     BoxLayout layout = new BoxLayout(container, BoxLayout.Y_AXIS); 
     container.setLayout(layout); 

     for (int i = 0, n = 7; i < n; i++) 
     { 
      JTextField jtextField= new JTextField("jtextfield "+i, n); 
      jtextField.setAlignmentX(alignment); 
      container.add(jtextField); 
      container.add(new javax.swing.Box.Filler(new java.awt.Dimension(0, 20), new java.awt.Dimension(0, 20), 
        new java.awt.Dimension(32767, 20))); 
     } 
     JTextArea jTextArea = new JTextArea(15, 30); 
     container.add(jTextArea); 
     for (int i = 6, n = 13; i < n; i++) 
     { 
      JTextField jtextField= new JTextField("jtextfield "+i, n); 
      jtextField.setAlignmentX(alignment); 
      container.add(jtextField); 
      container.add(new javax.swing.Box.Filler(new java.awt.Dimension(0, 20), new java.awt.Dimension(0, 20), 
        new java.awt.Dimension(32767, 20))); 
     } 
     return container; 
    } 

    public static void main(String args[]) 
    { 
     Container panel1 = layoutComponents("Left", Component.LEFT_ALIGNMENT); 
     JOptionPane.showConfirmDialog(
      null, panel1, "addRecord", JOptionPane.OK_CANCEL_OPTION, JOptionPane.PLAIN_MESSAGE); 
    } 
} 

现在我想上面的例子来的表现，使：

1. 窗口的大小调整大小不裁切任何内容
2. 的基于显示器的分辨率，窗口的大小以某种方式处理不同。
3. 我不''必须静态指定maximumSize，MinimumSize和preferredSize（例如NetBeans GUI编辑器），以便每次我必须进行大量测试以找出正确的大小时，JtextArea会自动垂直调整其自身的大小垂直分辨率达到最大。

Answer 1

谢谢你的回答，到目前为止，我想出了这个解决方案：让显示器高度，如果小于1024然后显示一个JScrollPane内的小对话框（感谢到trashgod指点的话），否则显示与标准高度正常对话（我得通过试验不幸计算）

import java.awt.*; 
import javax.swing.*; 

public class OptionPanePanel extends JFrame 
{ 

    private static Container layoutComponents(String title, float alignment) 
    { 
     JPanel container = new JPanel(); 
     BoxLayout layout = new BoxLayout(container, BoxLayout.Y_AXIS); 
     container.setLayout(layout); 

     for (int i = 0, n = 7; i < n; i++) 
     { 
      JTextField jtextField = new JTextField("jtextfield " + i, n); 
      jtextField.setAlignmentX(alignment); 
      container.add(jtextField); 
      container.add(createFiller()); 
     } 
     JTextArea jTextArea = new JTextArea(15, 30); 
     container.add(jTextArea); 
     for (int i = 6, n = 13; i < n; i++) 
     { 
      JTextField jtextField = new JTextField("jtextfield " + i, n); 
      jtextField.setAlignmentX(alignment); 
      container.add(jtextField); 
      container.add(createFiller()); 
     } 
     return container; 
    } 

    private static Box.Filler createFiller() 
    { 
     return new Box.Filler(new Dimension(0, 20), new Dimension(0, 20), 
       new Dimension(Short.MAX_VALUE, 20)); 
    } 

    public static void main(String args[]) 
    { 
     Container panel = layoutComponents("Left", Component.LEFT_ALIGNMENT); 
     /*Let's check the monitor height in multi monitor setup */ 
     GraphicsDevice gd = GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice(); 
     int monitorHeight = gd.getDisplayMode().getHeight(); 
     int result; 
     if (monitorHeight <= 1024) 
     { 
      final Dimension preferredDimension = new Dimension(500, monitorHeight - 110); 
      panel.setPreferredSize(preferredDimension); 
      JScrollPane jsp = new JScrollPane(panel) 
      { 
       @Override 
       public Dimension getPreferredSize() 
       { 
        return new Dimension(500, 700); 
       } 
      }; 
      result = JOptionPane.showOptionDialog(null, jsp, 
        "", 
        JOptionPane.OK_CANCEL_OPTION, 
        JOptionPane.PLAIN_MESSAGE, 
        null, 
        new String[] 
        { 
         ("save"), ("cancel") 
        }, // this is the array 
        "default"); 
     } 
     else 
     { 
      final Dimension preferredDimension = new Dimension(500, 700); 
      panel.setPreferredSize(preferredDimension); 
      result = JOptionPane.showOptionDialog(null, panel, 
        "", 
        JOptionPane.OK_CANCEL_OPTION, 
        JOptionPane.PLAIN_MESSAGE, 
        null, 
        new String[] 
        { 
         ("save"), ("cancel") 
        }, // this is the array 
        "default"); 
     } 

     if (result == JOptionPane.OK_OPTION) 
     { 
      //do something 
     } 
    } 
} 

Answer 2

您可以将选项窗格添加到对话框，如here和here所示。

另外，拨打setSize()后pack()。

附录：下面是sscce的一个变体，它将选项窗格置于具有基于屏幕几何图形的初始大小的滚动窗格中，如here所示。

import java.awt.*; 
import javax.swing.*; 

public class OptionPanePanel extends JFrame { 

    private static Container layoutComponents(String title, float alignment) { 
     JPanel container = new JPanel(); 
     BoxLayout layout = new BoxLayout(container, BoxLayout.Y_AXIS); 
     container.setLayout(layout); 

     for (int i = 0, n = 7; i < n; i++) { 
      JTextField jtextField = new JTextField("jtextfield " + i, n); 
      jtextField.setAlignmentX(alignment); 
      container.add(jtextField); 
      container.add(createFiller()); 
     } 
     JTextArea jTextArea = new JTextArea(15, 30); 
     container.add(jTextArea); 
     for (int i = 6, n = 13; i < n; i++) { 
      JTextField jtextField = new JTextField("jtextfield " + i, n); 
      jtextField.setAlignmentX(alignment); 
      container.add(jtextField); 
      container.add(createFiller()); 
     } 
     return container; 
    } 

    private static Box.Filler createFiller() { 
     return new Box.Filler(new Dimension(0, 20), new Dimension(0, 20), 
      new Dimension(Short.MAX_VALUE, 20)); 
    } 

    public static void main(String args[]) { 
     Container panel = layoutComponents("Left", Component.LEFT_ALIGNMENT); 
     final Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize(); 
     JScrollPane jsp = new JScrollPane(panel){ 

      @Override 
      public Dimension getPreferredSize() { 
       return new Dimension(320, 2 * screenSize.height/3); 
      } 
     }; 
     JOptionPane optPane = new JOptionPane(); 
     optPane.setMessage(jsp); 
     optPane.setMessageType(JOptionPane.PLAIN_MESSAGE); 
     optPane.setOptionType(JOptionPane.OK_CANCEL_OPTION); 
     JFrame f = new OptionPanePanel(); 
     f.setDefaultCloseOperation(EXIT_ON_CLOSE); 
     f.add(optPane); 
     f.pack(); 
     f.setLocationByPlatform(true); 
     f.setVisible(true); 
    } 
} 

Answer 3

我该怎么让像上述让：

我不知道这意味着什么。张贴你的SSCCE，告诉我们你遇到的问题。

这对我工作得很好：

import java.awt.*; 
import javax.swing.*; 

public class OptionPanePanel extends JFrame 
{ 
    public OptionPanePanel() 
    { 
     JPanel panel = new JPanel(new BorderLayout()); 
     JPanel north = new JPanel(); 
     north.add(new JTextField(10)); 
     north.add(new JTextField(10)); 
     north.add(new JTextField(10)); 
     north.add(new JTextField(10)); 
     north.add(new JTextField(10)); 
     north.add(new JTextField(10)); 
     north.add(new JTextField(10)); 

     JTextArea textArea = new JTextArea(5, 20); 

     panel.add(north, BorderLayout.NORTH); 
     panel.add(new JScrollPane(textArea)); 

     int result = JOptionPane.showConfirmDialog(
      this, panel, "addRecord", JOptionPane.OK_CANCEL_OPTION, JOptionPane.PLAIN_MESSAGE); 
    } 


    public static void main(String[] args) 
    { 
     JFrame frame = new OptionPanePanel(); 
     frame.setDefaultCloseOperation(EXIT_ON_CLOSE); 
     frame.pack(); 
     frame.setVisible(true); 
    } 
}