我有一个JTable,其中有一些像这样的SSCCE:
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.*;
import java.awt.Color;
class kanji{
public static void main(String args[]){
JFrame frame = new JFrame("Kanji");
JPanel pane = new JPanel();
JTable table = new JTable();
pane.setLayout(new BorderLayout());
JButton agreg = new JButton("Agregar");
DefaultTableModel model = new DefaultTableModel(get_data(), get_header());
JFrame hk = new JFrame("Historial de Significados");
Image icon = Toolkit.getDefaultToolkit().getImage("JLPT.jpg");
ImageIcon ima = new ImageIcon("JLPT.jpg");
table = new JTable(model){
@Override
public boolean isCellEditable(int row, int col){
switch(col){
case 0:
return false;
case 1:
return false;
case 2:
return true;
default:
return false;
}
}
@Override
public Class getColumnClass(int column) {
switch (column) {
case 0:
return String.class;
case 1:
return String.class;
case 2:
return Boolean.class;
default:
return Boolean.class;
}
}
};
DefaultTableCellRenderer r = new DefaultTableCellRenderer() {
@Override
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);
setForeground(Color.blue);
setHorizontalAlignment(JLabel.CENTER);
setFont(new Font("Microsoft JhengHei", Font.BOLD, 50));
return this;
}
};
DefaultTableCellRenderer r2 = new DefaultTableCellRenderer() {
@Override
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);
setHorizontalAlignment(JLabel.LEFT);
setFont(new Font("Microsoft JhengHei", Font.BOLD, 13));
return this;
}
};
table.getColumnModel().getColumn(0).setCellRenderer(r);
table.getColumnModel().getColumn(1).setCellRenderer(r2);
TableColumn column = null;
for (int i = 0; i < 3; i++) {
column = table.getColumnModel().getColumn(i);
if (i==0) {
column.setMaxWidth(80);
column.setMinWidth(80);
}
else{
if(i==1){
column.setPreferredWidth(470);
}
else{
column.setMaxWidth(50);
column.setMinWidth(50);
}
}
}
table.setRowHeight(table.getRowHeight()+70);
table.setModel(model);
table.getTableHeader().setReorderingAllowed(false);
JScrollPane scroll = new JScrollPane(table);
pane.add(scroll, BorderLayout.CENTER);
pane.add(agreg, BorderLayout.SOUTH);
frame.add(pane);
frame.setTitle("Historial de Significados");
frame.setSize(1350, 700);
frame.setIconImage(icon);
frame.setVisible(true);
frame.setLocationRelativeTo(null);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
scroll.setViewportView(table);
}
public static Object [][]get_data(){
Object data[][] = new Object[][]{
{"\u4e00", "Uno, 1", true},
{"\u4e01", "Uno, 1", true},
{"\u4e02", "Uno, 1", true},
{"\u4e03", "Uno, 1", true},
{"\u4e04", "Uno, 1", true},
{"\u4e05", "Uno, 1", true},
{"\u4e06", "Uno, 1", true},
{"\u4e07", "Uno, 1", true},
{"\u4e08", "Uno, 1", true},
{"\u4e09", "Uno, 1", true}
};
return data;
}
public static String []get_header(){
String header [] = new String[]{"KANJI", "SIGNIFICADO", "Agregar"};
return header;
}
}
但是我想在创建JTable之后添加3个JButton,我希望有一个不能采用所有JFrame大小的JTable,在我的代码中我得到一个Button但是我希望有可能设置按钮界限
我尝试添加一个JPanel,另一个尝试使用&#34; setPreferredSize&#34; JScrollPane不工作的地方,我的意思是我没有出现,所以我看不到所有的表格内容;我也试过&#34; setSize&#34;这对我不起作用。
也许我必须制作第二个小组或类似的东西,我希望你能帮助我解决这个问题。
我想一张图片说的超过1000个单词,所以:
这就是我得到和拥有的以及我想拥有的东西
所以用简单的英语,我想知道的是如何在渲染表后渲染表格并在底部添加按钮(但我不希望按钮具有所有帧宽度,我希望它们远离表格,不是因为我拥有它们,并且有可能改变它们的大小和位置。)
答案 0 :(得分:8)
private void createUI() {
JFrame frame = new JFrame();
frame.setLayout(new BorderLayout());
final JTable table = new JTable(10, 4);
JPanel btnPnl = new JPanel(new BorderLayout());
JPanel topBtnPnl = new JPanel(new FlowLayout(FlowLayout.TRAILING));
JPanel bottombtnPnl = new JPanel(new FlowLayout(FlowLayout.CENTER));
topBtnPnl.add(new JButton("Select All"));
bottombtnPnl.add(new JButton("Cancel"));
bottombtnPnl.add(new JButton("Add Selected"));
btnPnl.add(topBtnPnl, BorderLayout.NORTH);
btnPnl.add(bottombtnPnl, BorderLayout.CENTER);
table.getTableHeader().setReorderingAllowed(false);
frame.add(table.getTableHeader(), BorderLayout.NORTH);
frame.add(table, BorderLayout.CENTER);
frame.add(btnPnl, BorderLayout.SOUTH);
frame.setTitle("JTable Example.");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.pack();
frame.setVisible(true);
}
答案 1 :(得分:2)
CheckABunch
是一个示例,显示如何根据当前选择更新TableModel
。
答案 2 :(得分:1)
您可以查看GridLayout
。
总之,我对你的班级做了一些改动,我得到了这个:
JButtons
分组到JPanel
,其内部有GridLayout
BorderLayout
JPanels
添加到框架中。以下是代码:
//Another import sentences
import java.awt.GridLayout;
class kanji{
public static void main(String args[]){
// More code goes here
JPanel allowedOperations = new JPanel(new GridLayout(2, 2));
pane.setLayout(new BorderLayout());
// More code goes here
// All buttons are grouped here
allowedOperations.add(new JButton()); // Here's a trick
allowedOperations.add(agreg);
allowedOperations.add(new JButton("Save selected"));
allowedOperations.add(new JButton("Cancel"));
// Add the pane object to the frame
frame.add(pane, BorderLayout.CENTER);
// And finally add the allowedOperations object to the frame
frame.add(allowedOperations, BorderLayout.SOUTH);
// More code goes here
} //End class
我刚刚发布了修改内容,因此您需要对整个班级进行分组。
我知道这不是最好的方法,但您可以从这里改进代码。另请注意,您可以在添加到allowedOperations
窗格之前创建按钮,作为agreg
按钮