Question

我正在开发自定义搜索组件。单击文本字段内的按钮（搜索图像图标）时，将显示一个表。代码处于初期阶段，因此很多东西都不存在。

截至目前，我被卡住了，因为我无法使用箭头键导航表格。一旦我在表格中选择了一行，我就无法使用“tab”键移动到下一个文本字段。

该组件的目标是从表中选择一行，然后在支持方法的帮助下（尚未编写）将默认其他标签和文本字段中的值，同时在文本中默认第一列值它所依附的领域。

真的很感谢你的帮助。谢谢!!

    package myTableCombo;

import java.awt.Component;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.Point;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.JWindow;
import javax.swing.ListSelectionModel;
import javax.swing.RowFilter;
import javax.swing.ScrollPaneConstants;
import javax.swing.SwingConstants;
import javax.swing.WindowConstants;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import javax.swing.plaf.basic.BasicArrowButton;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableRowSorter;
import javax.swing.text.BadLocationException;
import javax.swing.text.Document;

public class SearchBox extends JPanel {

        private static final long serialVersionUID = 1L;
        private JTextField editor;
        private JButton arrowButton;
        private JWindow jWindow;
        private Component userComponent;

        public SearchBox() {
                super(new FlowLayout(FlowLayout.LEFT, 0, 0));
                editor = new JTextField();
                editor.setPreferredSize(new Dimension(250, 25));
                initialize();
                addListeners();
                setBorders();
        }

        private void addListeners() {
                arrowButton.addActionListener(new ActionListener() {
                        public void actionPerformed(ActionEvent e) {
                                showWindow();
                        }
                });
        }

        protected void showWindow() {
                if (null != getWindowComponent()) {
                        jWindow = new JWindow();
                        jWindow.getContentPane().add(getWindowComponent());
                        jWindow.setLocation(new Point(SearchBox.this.getLocationOnScreen().x, SearchBox.this.getLocationOnScreen().y + 25));
                        jWindow.pack();
                        jWindow.setVisible(true);
                }
        }

        private Component getWindowComponent() {
                return userComponent;
        }

        public void setWindowComponent(Component component) {
                userComponent = component;
        }

        private void initialize() {
                arrowButton = new BasicArrowButton(SwingConstants.SOUTH);//In my code there is an icon here
                arrowButton.setBorder(null);
                arrowButton.setContentAreaFilled(false);
        }

        private void setBorders() {
                add(editor);
                add(arrowButton);
                setBackground(editor.getBackground());
                setBorder(editor.getBorder());
                editor.setBorder(null);
        }

        public JTextField getTextComponent() {
                return editor;
        }

        public JButton getActionButton() {
                return arrowButton;
        }

        public static void main(String args[]) {
                EventQueue.invokeLater(new Runnable() {
                        @Override
                        public void run() {
                                createAndShowGUI();
                        }
                });
        }

        protected static void createAndShowGUI() {
                JFrame frame = new JFrame();
                JPanel panel = new JPanel();

                frame.setPreferredSize(new Dimension(500, 400));
                frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);

                panel.add(new JLabel("Test Table Combo"));
                SearchBox searchBox = new SearchBox();
                searchBox.userComponent = searchBox.new SearchBoxTable();
                panel.add(searchBox);

                frame.getContentPane().add(panel);
                frame.pack();
                frame.setLocationRelativeTo(null);
                frame.setVisible(true);
        }

        private class SearchBoxTable extends JScrollPane implements DocumentListener {

                private static final long serialVersionUID = 1L;
                private JTable table;
                private Object[] columnNames;
                private DefaultTableModel tableModel;
                private Object[][] sheetDataInString;
                private TableRowSorter<DefaultTableModel> rowSorter;

                public SearchBoxTable() {
                        columnNames = new Object[]{"Column 1", "Column 2", "Column 3", "Column 4", "Column 5", "Column 6"};
                        sheetDataInString = new Object[21][6];
                        for(int i =0; i < sheetDataInString.length; i++) {
                                for(int j = 0; j< 6; j++) {
                                        sheetDataInString[i][j] = "Row Value : " + i + ", Column Value : " + j;
                                }
                        }

                        tableModel = new DefaultTableModel(sheetDataInString, columnNames) {
                                private static final long serialVersionUID = 1L;

                                @Override
                                public boolean isCellEditable(int row, int column) {
                                        return false;
                                }
                        };
                        rowSorter = new TableRowSorter<DefaultTableModel>(tableModel);

                        table = new JTable(tableModel);
                        table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
                        table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
                        table.setAutoCreateRowSorter(true);
                        table.setFillsViewportHeight(true);
                        table.getTableHeader().setFont(new Font(null, Font.PLAIN, 13));

                        setPreferredSize(new Dimension(500, 225));
                        setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);
                        setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED);
                        getViewport().add(table);
                }

                @Override
                public void changedUpdate(DocumentEvent e) {
                        newFilter(e);
                }

                @Override
                public void insertUpdate(DocumentEvent e) {
                        newFilter(e);
                }

                @Override
                public void removeUpdate(DocumentEvent e) {
                        newFilter(e);
                }

                /**
                 * Update the row filter regular expression from the expression/string/data in the text box.
                 * 
                 * @param documentEvent
                 */
                private void newFilter(DocumentEvent documentEvent) {
                        RowFilter<DefaultTableModel, Object> rowFilter = null;
                        Document document = documentEvent.getDocument();
                        String filterText;

                        try {
                                filterText = document.getText(0, document.getLength()).trim();
                                rowFilter = RowFilter.regexFilter("(?i)" + filterText);
                        } catch (java.util.regex.PatternSyntaxException e) {
                                return;
                        } catch (BadLocationException badLocationException) {
                                return;
                        }
                        rowSorter.setRowFilter(rowFilter);
                        table.setRowSorter(rowSorter);

                }

        }

}

Answer 1

你的意思

使用未修饰的JDialog代替JWindow，否则JTextComponets不可编辑
JDialog更好地支持AlwaysOnTop和ModalityTypes（仅对setAlwaysOnTop进行硬编码）
不要一次又一次地重新创建基本设置，不要重新创建弹出窗口，使用lolac变量，删除所有内容并添加新的ony，一次定义JDialog的所有设置，请参阅exception（该对话框是可显示的。）如果隐藏弹出窗口并且JTextField中的值不为空
错过JDialog隐藏ESC key event的操作，隐藏JDialog，如果JFrame最小化

JDialog

JFrame

Point

Document

错过移动JTextField，
直接将JScrollPane附加到JCalendar by Kay Toedter，而不会丢失到non_optimized_code定义
您的code missing a few good practicie，然后一切皆有可能，但不能使用此代码（在编辑之后）
搜索recyclebin（我在弹出窗口中看到的最佳弹出式解决方法）

仅删除了uselles方法，从 - 移动到，注意import java.awt.Component; import java.awt.Dimension; import java.awt.EventQueue; import java.awt.FlowLayout; import java.awt.Font; import java.awt.Point; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JButton; import javax.swing.JDialog; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.JTextField; import javax.swing.ListSelectionModel; import javax.swing.RowFilter; import javax.swing.ScrollPaneConstants; import javax.swing.SwingConstants; import javax.swing.SwingUtilities; import javax.swing.WindowConstants; import javax.swing.event.DocumentEvent; import javax.swing.event.DocumentListener; import javax.swing.plaf.basic.BasicArrowButton; import javax.swing.table.DefaultTableModel; import javax.swing.table.TableRowSorter; import javax.swing.text.BadLocationException; import javax.swing.text.Document; public class SearchBox extends JPanel { private static final long serialVersionUID = 1L; private static JFrame frame = new JFrame(); private JTextField editor; private JButton arrowButton; //private JToggleButton arrowButton; private JDialog popupWindow = new JDialog(frame); private Component userComponent; private JTable table; private TableRowSorter<DefaultTableModel> rowSorter; private Object[] columnNames; private DefaultTableModel tableModel; private Object[][] sheetDataInString; public SearchBox() { super(new FlowLayout(FlowLayout.LEFT, 0, 0)); editor = new JTextField(); editor.setPreferredSize(new Dimension(250, 25)); editor.getDocument().addDocumentListener(new DocumentListener() { @Override public void changedUpdate(DocumentEvent e) { newFilter(); } @Override public void insertUpdate(DocumentEvent e) { newFilter(); } @Override public void removeUpdate(DocumentEvent e) { newFilter(); } private void newFilter() { RowFilter<DefaultTableModel, Object> rowFilter = null; Document document = editor.getDocument(); String filterText; try { filterText = document.getText(0, document.getLength()).trim(); rowFilter = RowFilter.regexFilter("(?i)" + filterText); } catch (java.util.regex.PatternSyntaxException e) { return; } catch (BadLocationException badLocationException) { return; } rowSorter.setRowFilter(rowFilter); table.setRowSorter(rowSorter); } }); initialize(); addListeners(); setBorders(); } private void addListeners() { arrowButton.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { if (!popupWindow.isVisible()) { showWindow(); } else { hideWindow(); } } }); } protected void showWindow() { if (null != getWindowComponent()) { popupWindow.getContentPane().add(getWindowComponent()); popupWindow.setLocation(new Point(SearchBox.this.getLocationOnScreen().x, SearchBox.this.getLocationOnScreen().y + 25)); popupWindow.setUndecorated(true); popupWindow.setAlwaysOnTop(true); popupWindow.pack(); SwingUtilities.invokeLater(new Runnable() { @Override public void run() { popupWindow.setVisible(true); } }); } } protected void hideWindow() { popupWindow.setVisible(false); } private Component getWindowComponent() { return userComponent; } public void setWindowComponent(Component component) { userComponent = component; } private void initialize() { arrowButton = new BasicArrowButton(SwingConstants.SOUTH);//In my code there is an icon here arrowButton.setBorder(null); arrowButton.setContentAreaFilled(false); } private void setBorders() { add(editor); add(arrowButton); setBackground(editor.getBackground()); setBorder(editor.getBorder()); editor.setBorder(null); } public JTextField getTextComponent() { return editor; } public JButton getActionButton() { return arrowButton; } public static void main(String args[]) { EventQueue.invokeLater(new Runnable() { @Override public void run() { createAndShowGUI(); } }); } protected static void createAndShowGUI() { JPanel panel = new JPanel(); frame.setPreferredSize(new Dimension(500, 400)); frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE); panel.add(new JLabel("Test Table Combo")); SearchBox searchBox = new SearchBox(); searchBox.userComponent = searchBox.new SearchBoxTable(); panel.add(searchBox); frame.getContentPane().add(panel); frame.pack(); frame.setLocationRelativeTo(null); frame.setVisible(true); } private class SearchBoxTable extends JScrollPane { private static final long serialVersionUID = 1L; public SearchBoxTable() { columnNames = new Object[]{"Column 1", "Column 2", "Column 3", "Column 4", "Column 5", "Column 6"}; sheetDataInString = new Object[21][6]; for (int i = 0; i < sheetDataInString.length; i++) { for (int j = 0; j < 6; j++) { sheetDataInString[i][j] = "Row Value : " + i + ", Column Value : " + j; } } tableModel = new DefaultTableModel(sheetDataInString, columnNames) { private static final long serialVersionUID = 1L; @Override public boolean isCellEditable(int row, int column) { return true; } }; rowSorter = new TableRowSorter<DefaultTableModel>(tableModel); table = new JTable(tableModel); table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF); table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION); table.setAutoCreateRowSorter(true); table.setFillsViewportHeight(true); table.getTableHeader().setFont(new Font(null, Font.PLAIN, 13)); table.setPreferredScrollableViewportSize(table.getPreferredSize()); setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS); setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED); getViewport().add(table); } } }，简单地放到{{1}}并再次写入

{{1}}

箭头键在自定义搜索组件中不起作用

1 个答案: