JScrollPane中的IntelliJ JTable [英] IntelliJ JTable in JScrollPane
问题描述
我正在使用IntelliJ GUI Builder为我的应用程序设计GUI。其中， JScrollPane 中的 JTable 似乎无法正常工作。首先，我无法显示列标题。其次，表单击不起作用。它就好像我从实际上我点击了3行，在默认行选择和任何 MouseListeners 我实现。最后，如果表超过 JScrollPane 的大小，它只会忽略最后的X行，并且不提供滚动条来查看它们。
I'm using IntelliJ GUI Builder to design a GUI for my application. In it, there is a JTable inside a JScrollPane that doesn't seem to be working. Firstly, I can't get the column headers to display. Second, table clicking is not working. It acts as if I'm clicking 3 rows down from where I actually am, both in default row selection and in any MouseListeners I implement. Lastly, if the table exceeds the size of the JScrollPane, it just ignores the last X rows and doesn't provide a scroll bar to view them.
我现在重做了几次项目，尝试扩展 AbstractTableModel ，然后 DefaultTableModel ，最近我尝试完全抛弃自定义 TableModel ，只使用 DefaultTableModel 构造函数无济于事。以下是所有相关代码（其中一些是由GUI Builder自动生成的，我无法直接修改它）。
I've reworked the project a couple times now, trying extensions of AbstractTableModel, then DefaultTableModel, and lately I have tried ditching a custom TableModel altogether and just using a DefaultTableModel constructor to no avail. Here is all relevant code (some of it is auto-generated by the GUI Builder and I can't modify it directly).
BaldGUI.java （主要的gui）
package client;
import client.DataTypes.Record;
import client.DataTypes.RecordSet;
import client.GuiElements.FileTree;
import client.GuiElements.RecordsTable;
import client.GuiElements.TextConsole;
import javax.swing.*;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.event.TreeSelectionListener;
import javax.swing.table.DefaultTableModel;
import javax.swing.tree.TreePath;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
import java.util.ArrayList;
public class BaldGUI extends JFrame {
//Menu
private JMenuBar menuBar = new JMenuBar();
private JMenu fileMenu = new JMenu("File");
private JMenuItem newBatchItem = new JMenuItem("New Batch");
private JMenuItem saveBatchItem = new JMenuItem("Save Batch");
private JMenuItem loadBatchItem = new JMenuItem("Load Batch");
private static String rootDir = "C:/Users/wf1946/IdeaProjects/DocumentumLoaderTest01/data";
private JPanel mainPanel;
private JPanel LeftSideBarPanel;
private JTree fileTree;
private JButton AddFileButton;
private JButton ChangeDirectoryButton;
private JButton AddDirectoryButton;
private JCheckBox IncludeSubDirectoriesCheckBox;
private JScrollPane DataTableWrapper;
private JTable DataTable;
private JEditorPane Console;
private JScrollPane ConsoleScroller;
public BaldGUI() {
$$$setupUI$$$();
this.loadComponents();
this.AddFileButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
((RecordsTable) DataTable).addItem(new Record());
}
});
this.add(this.mainPanel);
}
private void loadComponents() {
//Menu
this.setJMenuBar(this.menuBar);
this.menuBar.add(this.fileMenu);
this.fileMenu.add(this.newBatchItem);
this.fileMenu.add(this.saveBatchItem);
this.fileMenu.add(this.loadBatchItem);
//Selection handler for the file tree
this.fileTree.addTreeSelectionListener(new TreeSelectionListener() {
@Override
public void valueChanged(TreeSelectionEvent e) {
TreePath path = e.getPath();
if (!fileTree.getModel().isLeaf(path.getLastPathComponent())) { //Directory
AddDirectoryButton.setEnabled(true);
IncludeSubDirectoriesCheckBox.setEnabled(true);
AddFileButton.setEnabled(false);
} else { //File
AddFileButton.setEnabled(true);
AddDirectoryButton.setEnabled(false);
IncludeSubDirectoriesCheckBox.setEnabled(false);
}
}
});
}
//Getters
public JEditorPane getConsole() {
return Console;
}
public JPanel getMainPanel() {
return mainPanel;
}
public JTree getFileTree() {
return fileTree;
}
public JTable getDataTable() {
return this.DataTable;
}
public JCheckBox getIncludeSubDirectoriesCheckBox() {
return IncludeSubDirectoriesCheckBox;
}
public JScrollPane getDataTableWrapper() {
return DataTableWrapper;
}
private void createUIComponents() {
this.Console = new TextConsole();
this.fileTree = new FileTree(this, new File(this.rootDir));
RecordSet rs = new RecordSet();
for (int i = 0; i < 10; i++) rs.add(new Record());
this.DataTable = new RecordsTable(new DefaultTableModel(rs.getData(), RecordsTable.colNames), this);
this.DataTableWrapper = new JScrollPane(this.DataTable);
}
/**
* Method generated by IntelliJ IDEA GUI Designer
* >>> IMPORTANT!! <<<
* DO NOT edit this method OR call it in your code!
*
* @noinspection ALL
*/
private void $$$setupUI$$$() {
createUIComponents();
mainPanel = new JPanel();
mainPanel.setLayout(new FlowLayout(FlowLayout.LEFT, 5, 5));
mainPanel.setMinimumSize(new Dimension(1080, 810));
mainPanel.setPreferredSize(new Dimension(1080, 810));
LeftSideBarPanel = new JPanel();
LeftSideBarPanel.setLayout(new FlowLayout(FlowLayout.CENTER, 5, 5));
LeftSideBarPanel.setMinimumSize(new Dimension(220, 35));
LeftSideBarPanel.setPreferredSize(new Dimension(220, 600));
mainPanel.add(LeftSideBarPanel);
fileTree.setPreferredSize(new Dimension(200, 530));
fileTree.setShowsRootHandles(true);
LeftSideBarPanel.add(fileTree);
AddFileButton = new JButton();
AddFileButton.setPreferredSize(new Dimension(100, 25));
AddFileButton.setText("Add File");
LeftSideBarPanel.add(AddFileButton);
ChangeDirectoryButton = new JButton();
ChangeDirectoryButton.setPreferredSize(new Dimension(100, 25));
ChangeDirectoryButton.setText("Change Root");
LeftSideBarPanel.add(ChangeDirectoryButton);
AddDirectoryButton = new JButton();
AddDirectoryButton.setPreferredSize(new Dimension(100, 25));
AddDirectoryButton.setText("Add Directory");
LeftSideBarPanel.add(AddDirectoryButton);
IncludeSubDirectoriesCheckBox = new JCheckBox();
IncludeSubDirectoriesCheckBox.setPreferredSize(new Dimension(100, 22));
IncludeSubDirectoriesCheckBox.setText("Subdirectories");
LeftSideBarPanel.add(IncludeSubDirectoriesCheckBox);
DataTableWrapper.setPreferredSize(new Dimension(845, 600));
mainPanel.add(DataTableWrapper);
DataTable.setFillsViewportHeight(true);
DataTableWrapper.setViewportView(DataTable);
ConsoleScroller = new JScrollPane();
mainPanel.add(ConsoleScroller);
Console.setEnabled(false);
Console.setPreferredSize(new Dimension(1070, 195));
ConsoleScroller.setViewportView(Console);
}
/**
* @noinspection ALL
*/
public JComponent $$$getRootComponent$$$() {
return mainPanel;
}
}
RecordsTable.java
RecordsTable.java
package client.GuiElements;
import client.ActionListeners.RightClickMenuItemClick;
import client.ActionListeners.TableRightClickHandler;
import client.BaldGUI;
import client.DataTypes.Record;
import client.DataTypes.RecordSet;
import javax.swing.*;
import javax.swing.table.DefaultTableColumnModel;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableModel;
import java.util.ArrayList;
//Table to store the records
public class RecordsTable extends JTable {
//Status codes returned to calling functions to indicate the success or failure of the new record
public static final int APPEND_SUCCESS_CODE = 1;
public static final int APPEND_FAIL_DUPLICATE_CODE = 2;
public static final String[] colNames = {"Status", "File", "Full Path", "Title", "Form Date",
"Form No.", "Language Code", "Filed", "Approval Date", "Filed Form No."};
private RecordSet data = new RecordSet();
//Parent form
BaldGUI parent;
//Right-click menu for table item
JPopupMenu itemRightClickMenu = new JPopupMenu();
JMenuItem itemEdit = new JMenuItem("Edit Record");
JMenuItem itemDelete = new JMenuItem("Remove Record");
public RecordsTable(DefaultTableModel model, BaldGUI form) {
super(model);
this.parent = form;
this.itemRightClickMenu.add(itemEdit);
this.itemRightClickMenu.add(itemDelete);
this.itemEdit.addMouseListener(new RightClickMenuItemClick(this, itemEdit));
this.itemDelete.addMouseListener(new RightClickMenuItemClick(this, itemDelete));
this.addMouseListener(new TableRightClickHandler(this));
this.updateTable();
}
//Attempts to add a new row to the table
//Returns APPEND_FAIL_DUPLICATE_CODE if the selected file is already in the table
//Returns APPEND_SUCCESS_CODE if the record is successfully added
public int addItem(Record newRecord) {
TextConsole tc = ((TextConsole)this.parent.getConsole());
if(this.itemInData(newRecord)) {
tc.addText(
"File " + newRecord.getFileName() + " already included.\n", TextConsole.redStyle
);
return this.APPEND_FAIL_DUPLICATE_CODE;
}
this.data.add(newRecord);
tc.addText("File " + newRecord.getFileName() + " added successfully.\n", TextConsole.greenStyle);
this.updateTable();
return this.APPEND_SUCCESS_CODE;
}
//Updates the table to display any new data
public void updateTable() {
}
//Returns true if the record is already in the table
//Record equality is defined based on the full path to the file
public boolean itemInData(Record item) {
for( Record r : data) {
if(r.equals(item)) return true;
}
return false;
}
public JPopupMenu getItemRightClickMenu() {
return itemRightClickMenu;
}
public JMenuItem getItemEdit() {
return itemEdit;
}
public BaldGUI getParent() {
return parent;
}
}
记录 type只是一个基本数据容器， RecordSet 只是 ArrayList {Record} 的扩展一种将其中的数据转换为 Object [] [] 的方法，用于 DefaultTableModel 。
The Record type is just a basic data container, and RecordSet is just an extension of ArrayList{Record} with a method to turn the data therein into an Object[][] for the DefaultTableModel.
推荐答案
所以，正如我所料，这是一个非常简单，愚蠢的错误。在我的RecordsTable类中，我将父GUI（BaldGUI）存储为名为parent的变量。然后我有一个方法getParent（）来获取父节点，我没有意识到JTable带有一个方法getParent（）来获取周围的组件。通过重写该方法，整个程序或多或少地破坏了。我改变了方法，它可以正常工作。
So, as I expected, it was a really simple, dumb mistake. In my RecordsTable class, I stored off the parent GUI (BaldGUI) as a variable called parent. I then had a method getParent() to fetch that parent, and I didn't realize that JTable comes with a method getParent() which gets the surrounding component. By overriding that method, the entire program more or less broke. I changed the method, and it works as it should.
这篇关于JScrollPane中的IntelliJ JTable的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
