GridBagLayout的一些問題

Question

我想了解Swing的基本概念，目前我正在看看GridBagLayout。反正我想生產只使用GridBagLayout的畫面中的佈局：http://i.imgur.com/Sa59qNz.jpg

我設法生產出它嵌入與主框架也具有GridBagLayout的內部網格包佈局的面板gridBagHelper。

這裏是產生所需的佈局兩類：

import java.awt.Dimension; 
import java.awt.GridBagConstraints; 
import java.awt.GridBagLayout; 

import javax.swing.JComponent; 
import javax.swing.JFrame; 
import Borders.BorderPanel; 

public class GridBagFrame extends JFrame 
{ 
private static final long serialVersionUID = 1L; 
private GridBagLayout gbl = new GridBagLayout(); 
private GridBagHelper gridBagHelper; 


public GridBagFrame() 
{ 
    this.setSize(200,200); 
    this.setLocation(200,200); 
    this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
    this.setSize(new Dimension(600,600)); 
    this.getContentPane().setLayout(gbl); 

    gridBagHelper = new GridBagHelper(); 
    BorderPanel panelA = new BorderPanel("A"); 
    BorderPanel panelB = new BorderPanel("B"); 
    BorderPanel panelD = new BorderPanel("D"); 
    BorderPanel panelF = new BorderPanel("F"); 
    BorderPanel panelG = new BorderPanel("G"); 
    BorderPanel panelH = new BorderPanel("H"); 
    BorderPanel panelJ = new BorderPanel("J"); 

    this.getContentPane().add(panelA); 
    this.getContentPane().add(panelB); 
    this.getContentPane().add(gridBagHelper); 
    this.getContentPane().add(panelD); 
    this.getContentPane().add(panelF); 
    this.getContentPane().add(panelG); 
    this.getContentPane().add(panelH); 
    this.getContentPane().add(panelJ); 

    easyConstraints(gbl, panelA, 1, 3, 0, 0, 1.0, 1.0); 
    easyConstraints(gbl, panelB, 1, 2, 1, 0, 3.0, 2.0); 
    easyConstraints(gbl, gridBagHelper, 1, 3, 2, 0, 1.0, 1.0); 
    easyConstraints(gbl, panelD, 1, 2, 3, 0, 1.0, 2.0); 
    easyConstraints(gbl, panelF, 1, 1, 1, 2, 3.0, 2.0); 
    easyConstraints(gbl, panelG, 1, 1, 3, 2, 1.0, 2.0); 
    easyConstraints(gbl, panelH, 2, 1, 0, 3, 1.0, 1.0); 
    easyConstraints(gbl, panelJ, 2, 1, 2, 3, 1.0, 1.0); 

} 

private void easyConstraints(GridBagLayout GLB, JComponent comp, int w, 
     int h, int x, int y, double wx, double wy) 
{ 
    GridBagConstraints constraints= new GridBagConstraints(); 
    constraints.fill=GridBagConstraints.BOTH; 
    constraints.gridwidth = w; 
    constraints.gridheight = h; 
    constraints.gridx = x; 
    constraints.gridy = y; 
    constraints.weightx = wx; 
    constraints.weighty = wy; 
    GLB.setConstraints(comp, constraints); 
} 


public static void main (String[] args) 
{ 
    GridBagFrame gridBagFrame = new GridBagFrame(); 
    gridBagFrame.setVisible(true); 
} 
} 

和麪板C和E的輔助類：在此期間

import java.awt.Dimension; 
import java.awt.GridBagConstraints; 
import java.awt.GridBagLayout; 

import javax.swing.JComponent; 
import javax.swing.JPanel; 

import Borders.BorderPanel; 

public class GridBagHelper extends JPanel 
{ 
private static final long serialVersionUID = 1L; 
private GridBagLayout gbl = new GridBagLayout(); 

public GridBagHelper() 
{ 
    this.setSize(200,200); 
    this.setLocation(200,200); 
    this.setSize(new Dimension(600,600)); 
    this.setLayout(gbl); 
    BorderPanel panelC = new BorderPanel("C"); 
    BorderPanel panelE = new BorderPanel("E"); 

    this.add(panelC); 
    this.add(panelE); 

    easyConstraints(gbl, panelC, 1, 1, 0, 0, 1.0, 1.0); 
    easyConstraints(gbl, panelE, 1, 3, 0, 1, 1.0, 3.0); 
} 

private void easyConstraints(GridBagLayout GLB, JComponent comp, int w, 
     int h, int x, int y, double wx, double wy) 
{ 
    GridBagConstraints constraints= new GridBagConstraints(); 
    constraints.fill=GridBagConstraints.BOTH; 
    constraints.gridwidth = w; 
    constraints.gridheight = h; 
    constraints.gridx = x; 
    constraints.gridy = y; 
    constraints.weightx = wx; 
    constraints.weighty = wy; 
    GLB.setConstraints(comp, constraints); 
} 

} 

我花很多時間試圖使它只使用一個gridbaglayout而沒有運氣。沒有辦法說服borderpanelC不擴展，也無法說服borderpanelE從B的中間開始。我想知道是否有人知道如何使它在一個Frame中工作，只需一個gridbaglayout，什麼是寬度，高度和權重的正確值。 非常感謝您提前！

編輯： 好了，萬一它有助於幫助我在這裏就是我試過

import java.awt.Dimension; 
    import java.awt.GridBagConstraints; 
    import java.awt.GridBagLayout; 

    import javax.swing.JComponent; 
    import javax.swing.JFrame; 
    import Borders.BorderPanel; 

    public class GridBagFrameBad extends JFrame 
{ 
private static final long serialVersionUID = 1L; 
private GridBagLayout gbl = new GridBagLayout(); 

public GridBagFrameBad() 
{ 
    this.setTitle("This is not supposed to work"); 
    this.setSize(200,200); 
    this.setLocation(200,200); 
    this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
    this.setSize(new Dimension(600,600)); 
    this.getContentPane().setLayout(gbl); 


    BorderPanel panelA = new BorderPanel("A"); 
    BorderPanel panelB = new BorderPanel("B"); 
    BorderPanel panelC = new BorderPanel("C"); 
    BorderPanel panelD = new BorderPanel("D"); 
    BorderPanel panelE = new BorderPanel("E"); 
    BorderPanel panelF = new BorderPanel("F"); 
    BorderPanel panelG = new BorderPanel("G"); 
    BorderPanel panelH = new BorderPanel("H"); 
    BorderPanel panelJ = new BorderPanel("J"); 

    this.getContentPane().add(panelA); 
    this.getContentPane().add(panelB); 
    this.getContentPane().add(panelC); 
    this.getContentPane().add(panelD); 
    this.getContentPane().add(panelE); 
    this.getContentPane().add(panelF); 
    this.getContentPane().add(panelG); 
    this.getContentPane().add(panelH); 
    this.getContentPane().add(panelJ); 

    easyConstraints(gbl, panelA, 1, 3, 0, 0, 1.0, 1.0); 
    easyConstraints(gbl, panelB, 1, 2, 1, 0, 3.0, 2.0); 
    easyConstraints(gbl, panelC, 1, 1, 2, 0, 1.0, 1.0); 
    easyConstraints(gbl, panelD, 1, 2, 3, 0, 1.0, 2.0); 
    easyConstraints(gbl, panelE, 1, 2, 2, 1, 1.0, 1.0); 
    easyConstraints(gbl, panelF, 1, 1, 1, 2, 3.0, 2.0); 
    easyConstraints(gbl, panelG, 1, 1, 3, 2, 1.0, 2.0); 
    easyConstraints(gbl, panelH, 2, 1, 0, 3, 1.0, 1.0); 
    easyConstraints(gbl, panelJ, 2, 1, 2, 3, 1.0, 1.0); 

} 

private void easyConstraints(GridBagLayout GLB, JComponent comp, int w, 
     int h, int x, int y, double wx, double wy) 
{ 
    GridBagConstraints constraints= new GridBagConstraints(); 
    constraints.fill=GridBagConstraints.BOTH; 
    constraints.gridwidth = w; 
    constraints.gridheight = h; 
    constraints.gridx = x; 
    constraints.gridy = y; 
    constraints.weightx = wx; 
    constraints.weighty = wy; 
    GLB.setConstraints(comp, constraints); 
} 


public static void main (String[] args) 
{ 
    GridBagFrameBad gridBagFrameBad = new GridBagFrameBad(); 
    gridBagFrameBad.setVisible(true); 
} 
} 

Answer 1

我想，你錯過了一個重要的事情，體重爲[0,1]區間，規範的權重，也許有幫助，讓我查一下......

在另一方面，我看到，你gridwidth和gridheight是0，可能是你不想要這也...

---

好了，現在看來，我們必須從頭開始......

你的代碼生成這對我來說：

我的Java版本是jdk1.7.0_67 ...

我以此爲BorderPanel：

import java.awt.Color; 

import javax.swing.BorderFactory; 
import javax.swing.JPanel; 


public class BorderPanel extends JPanel { 

    public BorderPanel(String title) { 
     setBorder(BorderFactory.createTitledBorder(BorderFactory.createLineBorder(Color.BLACK), title)); 
    } 

}