在这篇文章Making Table With List Of JPanels中，我可以制作一个带有面板列表的表格。该表具有许多功能，但我需要一个新功能，它正在应用百分比列。这意味着我喜欢所有列的宽度不等于且由浮点数组确定。
这是我的课程表：
import javax.swing.*;
import java.awt.*;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.util.Vector;
public class PanelTable extends JPanel {
private String data[][];
private String columns[];
private int numberOfRows;
private int numberOfColumns;
private JTextArea[] header;
private JTextArea[][] cell;
public PanelTable(String data[][], String columns[]) {
setLayout(new BoxLayout(this, BoxLayout.Y_AXIS));
this.data = data;
this.columns = columns;
numberOfRows = data.length;
numberOfColumns = columns.length;
makeHeader();
makeCells();
}
public void makeCells() {
cell = new JTextArea[numberOfRows][numberOfColumns];
for (int rowIndex = 0; rowIndex < numberOfRows; rowIndex++) {
add(getRow(numberOfColumns, rowIndex));
}
}
public void makeHeader() {
header = new JTextArea[numberOfColumns];
for (int columnIndex = 0; columnIndex < numberOfColumns; columnIndex++) {
JTextArea ta = new JTextArea();
ta.setComponentOrientation(ComponentOrientation.RIGHT_TO_LEFT);
ta.setBackground(new Color(57, 77, 112));
ta.setForeground(Color.WHITE);
ta.setText(columns[columnIndex]);
ta.setFont(new Font("Calibri Light", Font.BOLD, 25));
ta.setLineWrap(true);
ta.setWrapStyleWord(true);
ta.setEditable(false);
header[columnIndex] = ta;
}
JPanel rowHeader = new JPanel();
rowHeader.setLayout(new BoxLayout(rowHeader, BoxLayout.X_AXIS));
for (int i = 0; i < numberOfColumns; i++) {
rowHeader.add(header[i]);
}
add(rowHeader);
}
public Component getRow(int numberOfColumns, int rowIndex) {
JPanel row = new JPanel();
//use GridLayout if you want equally spaced columns
row.setLayout(new BoxLayout(row, BoxLayout.X_AXIS));
for (int columnIndex = 0; columnIndex < numberOfColumns; columnIndex++) {
row.add(getCell(rowIndex, columnIndex));
}
return row;
}
public Component getCell(int rowIndex, int columnIndex) {
if (cell[rowIndex][columnIndex] == null) {
JTextArea ta = new JTextArea();
ta.setLineWrap(true);
ta.setWrapStyleWord(true);
ta.setEditable(false);
ta.setSize(50, ta.getHeight());
ta.setComponentOrientation(ComponentOrientation.RIGHT_TO_LEFT);
ta.setBorder(BorderFactory.createLineBorder(Color.BLACK));
ta.setText(data[rowIndex][columnIndex]);
ta.setFont(new Font("Bmitra", Font.BOLD, 15));
cell[rowIndex][columnIndex] = ta;
}
return cell[rowIndex][columnIndex];
}
}
这是测试的gui示例：
import javax.swing.*;
import java.awt.*;
public class GUI extends JFrame {
private PanelTable table;
private JScrollPane scrollPane;
public GUI(){
super("Bank Table");
JPanel contentPanel = new JPanel();
setContentPane(contentPanel);
contentPanel.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
setLayout(new BorderLayout());
setMinimumSize(new Dimension(1000,700));
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
String[][] data= new String[][]{{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/01"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/02"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/03"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/04"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/05"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/06"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/07"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/08"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/09"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/10"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/11"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/12"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/13"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/14"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/15"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/16"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/17"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/18"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/19"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/20"},
{"0212670003009", "ص 318", "77081634","380dddddddddddddddddddddddddddddddddddddddddddddddddddddddd00000","0","331142","2102","وصول چک","08:56:46","1397/05/21"},
{"0212670003009", "ص 318", "77081634","380dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd00000","0","331142","2102","وصول چک","08:56:46","1397/05/22"},
{"0212670003009", "ص 318", "77081634","3800ddddddddddddddddddddddddddddddddddddddddd0000","0","331142","2102","وصول چک","08:56:46","1397/05/23"},
{"0212670003009", "ص 318", "77081634","38000ddddddddddddddddddddddddddddddddddddddddddddddddddd000","0","331142","2102","وصول چک","08:56:46","1397/05/24"},
{"0212670003009", "ص 318", "77081634","38000ddddddddddddddddddddddddddddddddddddddd000","0","331142","2102","وصول چک","08:56:46","1397/05/25"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/26"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/15"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/16"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/17"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/18"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/19"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/20"},
{"0212670003009", "ص 318", "77081634","380dddddddddddddddddddddddddddddddddddddddddddddddddddddddd00000","0","331142","2102","وصول چک","08:56:46","1397/05/21"},
{"0212670003009", "ص 318", "77081634","380dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd00000","0","331142","2102","وصول چک","08:56:46","1397/05/22"},
{"0212670003009", "ص 318", "77081634","3800ddddddddddddddddddddddddddddddddddddddddd0000","0","331142","2102","وصول چک","08:56:46","1397/05/23"},
{"0212670003009", "ص 318", "77081634","38000ddddddddddddddddddddddddddddddddddddddddddddddddddd000","0","331142","2102","وصول چک","08:56:46","1397/05/24"},
{"0212670003009", "ص 318", "77081634","38000ddddddddddddddddddddddddddddddddddddddd000","0","331142","2102","وصول چک","08:56:46","1397/05/25"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/26"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/15"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/16"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/17"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/18"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/19"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/20"},
{"0212670003009", "ص 318", "77081634","380dddddddddddddddddddddddddddddddddddddddddddddddddddddddd00000","0","331142","2102","وصول چک","08:56:46","1397/05/21"},
{"0212670003009", "ص 318", "77081634","380dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd00000","0","331142","2102","وصول چک","08:56:46","1397/05/22"},
{"0212670003009", "ص 318", "77081634","3800ddddddddddddddddddddddddddddddddddddddddd0000","0","331142","2102","وصول چک","08:56:46","1397/05/23"},
{"0212670003009", "ص 318", "77081634","38000ddddddddddddddddddddddddddddddddddddddddddddddddddd000","0","331142","2102","وصول چک","08:56:46","1397/05/24"},
{"0212670003009", "ص 318", "77081634","38000ddddddddddddddddddddddddddddddddddddddd000","0","331142","2102","وصول چک","08:56:46","1397/05/25"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/26"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/15"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/16"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/17"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/18"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/19"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/20"},
{"0212670003009", "ص 318", "77081634","380dddddddddddddddddddddddddddddddddddddddddddddddddddddddd00000","0","331142","2102","وصول چک","08:56:46","1397/05/21"},
{"0212670003009", "ص 318", "77081634","380dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd00000","0","331142","2102","وصول چک","08:56:46","1397/05/22"},
{"0212670003009", "ص 318", "77081634","3800ddddddddddddddddddddddddddddddddddddddddd0000","0","331142","2102","وصول چک","08:56:46","1397/05/23"},
{"0212670003009", "ص 318", "77081634","38000ddddddddddddddddddddddddddddddddddddddddddddddddddd000","0","331142","2102","وصول چک","08:56:46","1397/05/24"},
{"0212670003009", "ص 318", "77081634","38000ddddddddddddddddddddddddddddddddddddddd000","0","331142","2102","وصول چک","08:56:46","1397/05/25"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/26"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/27"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/28"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/29"},
{"0212670003009", "ص 318", "77081634","38000000","0","331142","2102","وصول چک","08:56:46","1397/05/30"}};
String[] columns= new String[]{"شماره حساب", "اطلاعات اضافه", "مانده","واریز","برداشت","فیش/ حواله","کد شعبه","شرح","ساعت","تاریخ"};
System.out.println("Hey");
PanelTable table = new PanelTable(data,columns);
System.out.println("!!!");
scrollPane = new JScrollPane(table);
scrollPane.getVerticalScrollBar().setUnitIncrement(50);
add(scrollPane,BorderLayout.CENTER);
// JTextArea textArea = new JTextArea();
// textArea.setLineWrap(true);
// textArea.setWrapStyleWord(true);
// textArea.setComponentOrientation(ComponentOrientation.RIGHT_TO_LEFT);
// textArea.setText("Alireza");
// add(textArea,BorderLayout.NORTH);
setVisible(true);
}
public static void main(String args[]){
GUI gui =new GUI();
}
}
答案 0 :(得分：1)
执行以下操作： 首先创建一个宽度大小的数组。例如：
final int[] columnsWidth = { 300, 100, 50, 300, 50 };
然后在要设置文本区域所有属性的方法makeHeader和getCell上，还设置首选大小。请参见下面的代码。这应该给您基于大小数组的宽度。
ta.setPreferredSize(new Dimension(columnsWidth[columnIndex], ta.getHeight()));
让我知道它是否对您有用：）
下面是完整的代码： 对于GUI：
import javax.swing.*;
import java.awt.*;
public class GUI extends JFrame {
private PanelTable2 table;
private JScrollPane scrollPane;
public GUI(){
super("Bank Table");
JPanel contentPanel = new JPanel();
setContentPane(contentPanel);
contentPanel.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
setLayout(new BorderLayout());
setMinimumSize(new Dimension(1000,700));
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
final String[] columns = { "Big Column", "Serodys", "Ramírez", "Entrada", "MercaSur" };
final String[][] data = {{"2323", "Hundreds","2323", "Hundreds","2323"},{"2323", "Hundreds","2323", "Hundreds","2323"}};
// final PanelTable22 panel = new PanelTable22(data, columns);
System.out.println("Hey");
PanelTable2 table = new PanelTable2(data,columns);
System.out.println("!!!");
scrollPane = new JScrollPane(table);
scrollPane.getVerticalScrollBar().setUnitIncrement(50);
add(scrollPane,BorderLayout.CENTER);
setVisible(true);
}
public static void main(String args[]){
GUI gui =new GUI();
}
}
对于表格模型：
import java.awt.Color;
import java.awt.Component;
import java.awt.ComponentOrientation;
import java.awt.Dimension;
import java.awt.Font;
import javax.swing.BorderFactory;
import javax.swing.BoxLayout;
import javax.swing.JPanel;
import javax.swing.JTextArea;
public class PanelTable2 extends JPanel {
private String data[][];
private String columns[];
private int numberOfRows;
private int numberOfColumns;
private JTextArea[] header;
private JTextArea[][] cell;
final int[] columnsWidth = { 300, 100, 50, 300, 50 };
public PanelTable2(String data[][], String columns[]) {
setLayout(new BoxLayout(this, BoxLayout.Y_AXIS));
this.data = data;
this.columns = columns;
numberOfRows = data.length;
numberOfColumns = columns.length;
makeHeader();
makeCells();
}
public void makeCells() {
cell = new JTextArea[numberOfRows][numberOfColumns];
for (int rowIndex = 0; rowIndex < numberOfRows; rowIndex++) {
add(getRow(numberOfColumns, rowIndex));
}
}
public void makeHeader() {
header = new JTextArea[numberOfColumns];
for (int columnIndex = 0; columnIndex < numberOfColumns; columnIndex++) {
JTextArea ta = new JTextArea();
ta.setComponentOrientation(ComponentOrientation.RIGHT_TO_LEFT);
ta.setPreferredSize(new Dimension(columnsWidth[columnIndex], ta.getHeight()));
ta.setBackground(new Color(57, 77, 112));
ta.setForeground(Color.WHITE);
ta.setText(columns[columnIndex]);
ta.setFont(new Font("Calibri Light", Font.BOLD, 25));
ta.setLineWrap(true);
ta.setWrapStyleWord(true);
ta.setEditable(false);
header[columnIndex] = ta;
}
JPanel rowHeader = new JPanel();
rowHeader.setLayout(new BoxLayout(rowHeader, BoxLayout.X_AXIS));
for (int i = 0; i < numberOfColumns; i++) {
rowHeader.add(header[i]);
}
add(rowHeader);
}
public Component getRow(int numberOfColumns, int rowIndex) {
JPanel row = new JPanel();
//use GridLayout if you want equally spaced columns
row.setLayout(new BoxLayout(row, BoxLayout.X_AXIS));
for (int columnIndex = 0; columnIndex < numberOfColumns; columnIndex++) {
row.add(getCell(rowIndex, columnIndex));
}
return row;
}
public Component getCell(int rowIndex, int columnIndex) {
if (cell[rowIndex][columnIndex] == null) {
JTextArea ta = new JTextArea();
ta.setLineWrap(true);
ta.setWrapStyleWord(true);
ta.setEditable(false);
ta.setComponentOrientation(ComponentOrientation.RIGHT_TO_LEFT);
ta.setBorder(BorderFactory.createLineBorder(Color.BLACK));
ta.setText(data[rowIndex][columnIndex]);
ta.setFont(new Font("Bmitra", Font.BOLD, 15));
ta.setPreferredSize(new Dimension(columnsWidth[columnIndex], ta.getHeight()));
cell[rowIndex][columnIndex] = ta;
}
return cell[rowIndex][columnIndex];
}
}
答案 1 :(得分：0)
关键是这些行：
//use GridLayout if you want equally spaced columns
row.setLayout(new BoxLayout(row, BoxLayout.X_AXIS));
要将约束应用于列，可以使用GridBagLayout代替BoxLayout。
这是使用GridBagLayout的非常基本的技巧：
import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.io.IOException;
import javax.swing.BorderFactory;
import javax.swing.BoxLayout;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextArea;
public class PanelTable2 extends JPanel {
public PanelTable2() {
setLayout(new BoxLayout(this, BoxLayout.Y_AXIS));
setPreferredSize(new Dimension(400, 150));
add(getRow());
}
Component getRow() {
int[] percent = {10,40,50};
JPanel row = new JPanel();
GridBagLayout layout = new GridBagLayout();
row.setLayout(layout);
GridBagConstraints gbc = new GridBagConstraints();
gbc.fill = GridBagConstraints.HORIZONTAL;
gbc.anchor = GridBagConstraints.CENTER;
for (int i= 0; i < percent.length; i++) {
gbc.gridy = 0 ; gbc.gridx = i;
gbc.weightx = percent[i];
Component component = getCell();
row.add(component, gbc);
}
return row;
}
Component getCell() {
JTextArea ta = new JTextArea(4,11);
ta.setBorder(BorderFactory.createLineBorder(Color.BLACK));
ta.setFont(new Font("Bmitra", Font.BOLD, 15));
return ta;
}
public static void main(String[] args) throws IOException{
JFrame window = new JFrame();
window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
window.add(new PanelTable2());
window.pack();
window.setVisible(true);
}
}
请注意，mcve不应代表您的应用程序。它应该是问题的简单表示。
GridBagLayout绝不是唯一的选择。您还可以探索其他选择，例如SpringLayout。