Comment puis-je corriger la colonne dans JTable afin que la colonne soit toujours visible

Question

Comment puis-je corriger la colonne dans JTable afin que la colonne soit toujours visible? Si j'utilise JViewport pour la première fois, la table arrive correctement, mais lorsque je clique sur btn pour la deuxième fois, la colonne suivante de Jtable est corrigée et continue à chaque fois.

Answer 1

Vous pouvez comparer votre approche actuelle à l'exemple de colonne fixe show here.

Answer 2

J'ai trouvé ce tutoriel http://www.java2s.com/Code/Java/Swing-Components/FixedTableColumnExample.htm

J'espère que cela a aidé.

Answer 3

il y a une autre alternative:

import java.awt.BorderLayout; 
import java.awt.Color; 
import java.awt.Graphics; 
import java.awt.Point; 
import java.awt.Rectangle; 
import java.awt.event.ComponentEvent; 
import java.awt.event.ComponentListener; 
import java.awt.event.KeyEvent; 
import java.awt.event.KeyListener; 
import java.awt.event.MouseAdapter; 
import java.awt.event.MouseEvent; 
import java.awt.image.BufferedImage; 
import java.beans.PropertyChangeEvent; 
import java.beans.PropertyChangeListener; 
import java.lang.reflect.Field; 
import java.math.BigDecimal; 

import javax.swing.JFrame; 
import javax.swing.JLabel; 
import javax.swing.JLayeredPane; 
import javax.swing.JScrollPane; 
import javax.swing.JTable; 
import javax.swing.SwingUtilities; 
import javax.swing.UIManager; 
import javax.swing.event.ChangeEvent; 
import javax.swing.event.ChangeListener; 

import org.jdesktop.swingx.JXFindBar; 
import org.jdesktop.swingx.JXTable; 
import org.jdesktop.swingx.JXTableHeader; 
import org.jdesktop.swingx.decorator.AbstractHighlighter; 
import org.jdesktop.swingx.decorator.ColorHighlighter; 
import org.jdesktop.swingx.decorator.HighlighterFactory; 
import org.jdesktop.swingx.search.AbstractSearchable; 
import org.jdesktop.swingx.search.AbstractSearchable.SearchResult; 

/*** * 

* 
* @author Elie Levy Jan 04, 2009 GPL License 
*   (http://www.gnu.org/copyleft/gpl.html) 
* 
* @author kissjava 20090812 www.blogjava.net/kissjava 
*/ 
public class FixTableManager extends JXTableHeader implements 
     PropertyChangeListener, KeyListener, ChangeListener { 

private JXTable table; 
private JScrollPane scrollPane; 
private int col = 0; 
// private Point point; 
private FixedMouseListenter mouseListener; 

public FixTableManager(JXTable table, JScrollPane scrollPane) { 
    super(table.getTableHeader().getColumnModel()); 
    this.table = table; 
    this.scrollPane = scrollPane; 
    init(); 

} 

private void init() { 
    mouseListener = new FixedMouseListenter(); 
    table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF); 
    table.setTableHeader(this); 
    this.addMouseListener(mouseListener); 
    table.addMouseListener(mouseListener); 
    scrollPane.addComponentListener(new ScrolPaneComponentListener()); 
    table.setFillsViewportHeight(true); 
} 

@Override 
public void paint(Graphics g) { 
    super.paint(g);   
    int division = mouseListener.getDivision(); 
    if (division > 0) { 
     Rectangle r = getVisibleRect(); 
     BufferedImage image = new BufferedImage(division, r.height, 
       BufferedImage.TYPE_INT_RGB); 
     Graphics g2 = image.getGraphics(); 
     g2.setClip(0, 0, division, r.height);    
     g2.fillRect(0, 0, division, r.height); 
     super.paint(g2); 
     g.drawImage(image, r.x, r.y, division, r.height, null); 
     g2.dispose(); 
    } 
} 

public int getFixCol() { 
    return col; 
} 

/** 
* 
**/ 
public void setFixCol(int fixCol) { 
    this.col = fixCol; 
} 

private int division; 

private class FixedColumnsDelegate extends JLabel { 

    @Override 
    public void paintComponent(Graphics g) { 
     Rectangle r = table.getBounds(); 
     if (division > 0) { 
      table.invalidate(); 
      table.validate(); 
      Rectangle visibleRect = table.getVisibleRect(); 
      BufferedImage image = new BufferedImage(division, r.height, 
        BufferedImage.TYPE_INT_ARGB); 
      Graphics g2 = image.getGraphics(); 

      g2.setClip(0, visibleRect.y, division, table.getBounds().height); 

      g2.setColor(Color.RED); 
      g2.fillRect(0, 0, division, table.getBounds().height); 

      table.paint(g2); 
      g.drawImage(image, 0, 0, division, table.getBounds().height, 0, 
        visibleRect.y - 1, division, 
        visibleRect.y + table.getBounds().height-1, null); 
      // g.setColor(Color.BLACK); 
      // for (int i = 0; i < visibleRect.y 
      // + table.getBounds().height; i += 8) { 
      // g.drawLine(division - 1, i, division - 1, i + 4); 
      // g.drawLine(division - 2, i, division - 2, i + 4); 
      // } 
      g2.dispose(); 
     } 
    } 
} 

private class FixedMouseListenter extends MouseAdapter { 

    private FixedColumnsDelegate fixedColumns; 
    private boolean added; 

    public FixedMouseListenter() { 
     fixedColumns = new FixedColumnsDelegate();    
    } 

    @Override 
    public void mouseReleased(MouseEvent e) { 
     // point = e.getPoint(); 
     doMosuseAction();    

    } 

    @Override 
    public void mouseMoved(MouseEvent e) { 
     // point = e.getPoint(); 
     doMosuseAction(); System.out.println("cogido");   
    } 

    private void doMosuseAction() { 
     // if (point !=null) { 
     ajustClip(); 

     // } 
    } 

    /** 
    **/ 
    public void freeze() { 
     JLayeredPane pane = table.getRootPane().getLayeredPane(); 
     if (added) { 
      pane.remove(fixedColumns); 
     } 
     pane.add(fixedColumns, JLayeredPane.POPUP_LAYER); 
     setBoundsOnFrozenColumns(); 
     added = true; 
     fixedColumns.setVisible(true); 
    } 



    public void setBoundsOnFrozenColumns() { 
     if (col >= 0) { 
      division = table.getCellRect(1, col, true).x 
        + table.getCellRect(1, col, true).width;     
      int limit = scrollPane.getBounds().width 
        - scrollPane.getVerticalScrollBar().getBounds().width 
        - 2; 
      division = Math.min(division, limit); 
      JLayeredPane pane = table.getRootPane().getLayeredPane();     
      Point p = scrollPane.getLocationOnScreen(); 
      SwingUtilities.convertPointFromScreen(p, pane); 
      Rectangle scrollPaneBounds = scrollPane.getBounds(); 
      int headerHeight = table.getTableHeader().getBounds().height + 2; 
      int hScrollHeight = (scrollPane.getHorizontalScrollBar() 
        .isVisible()) ? scrollPane.getHorizontalScrollBar() 
        .getBounds().height : 0; 

      int columnMargin = table.getColumnModel().getColumnMargin(); 
      p.x += 2 * columnMargin; 

      int scrollRowHeaderWidth = 0; 
      /** 
      ***/ 
      if (scrollPane.getRowHeader() != null) { 
       scrollRowHeaderWidth = scrollPane.getRowHeader().getWidth(); 
       if (scrollRowHeaderWidth <= 0) { 
        scrollRowHeaderWidth = 0; 
       } 
      } 
      p.x += scrollRowHeaderWidth; 
      fixedColumns.setBounds(p.x - 1, p.y + headerHeight - 2, 
        division, scrollPaneBounds.height - headerHeight 
          - hScrollHeight+columnMargin); 
      System.out.println("se repinto"); 
     } 
    } 

    public int getDivision() { 
     return division; 
    } 

    /** 
    * {@inheritDoc} 
    * <p> 
    * 
    * @see java.awt.event.MouseAdapter#mouseClicked(java.awt.event.MouseEvent) 
    */ 
    @Override 
    public void mouseClicked(MouseEvent e) { 
     // TODO Auto-generated method stub 
     // super.mouseClicked(e); 
     if (e.getClickCount() == 2) { 
      ajustClip(); 
     } 
    } 

    /** 
    * {@inheritDoc} <p> 
    * @see java.awt.event.MouseAdapter#mouseEntered(java.awt.event.MouseEvent) 
    */ 
    @Override 
    public void mouseEntered(MouseEvent e) { 
     // TODO Auto-generated method stub 
     Rectangle head = table.getTableHeader().getVisibleRect(); 
     head.width= getDivision(); 
     Rectangle lastCol = table.getTableHeader().getHeaderRect(col); 
     if (head.contains(lastCol)) { 
      System.out.println("contenido"); 
      e.consume(); 
     }else 
     super.mouseEntered(e); 

    } 
} 

private class ScrolPaneComponentListener implements ComponentListener { 

    @Override 
    public void componentHidden(ComponentEvent e) { 
     displayMessage(e.getComponent().getClass().getName() 
       + " --- Hidden"); 

    } 

    @Override 
    public void componentMoved(ComponentEvent e) { 
     displayMessage(e.getComponent().getClass().getName() + " --- Moved"); 

     // setBoundsOnFrozenColumns(); 
    } 

    @Override 
    public void componentResized(ComponentEvent e) { 
     displayMessage(e.getComponent().getClass().getName() 
       + " --- Resized"); 

     ajustClip(); 

    } 

    @Override 
    public void componentShown(ComponentEvent e) { 
     displayMessage(e.getComponent().getClass().getName() + " --- Shown"); 

     // setBoundsOnFrozenColumns(); 
     // if(e.getComponent()) 
    } 

    private void displayMessage(String msg) { 
     System.out.println(msg); 
    } 

    private void freeze() { 
     mouseListener.freeze(); 
    } 
} 

public static String columnNames[] = { "Customer Name", "City", 
     "Payment Amount", "Date", "Item", "Quantity", "Related", "Price", 
     "Method", "Campaign", "Affiliate" }; 
public static String customers[] = { "Stores", "Exxon", "Chevron", 
     "General", "ConocoPhillips", "General", "Ford", "Citigroup", 
     "Bank", "AT&T", "Berkshire", "J.P.", "American", "Hewlett-Packard", 
     "International", "Valero", "Verizon", "McKesson", "Cardinal", 
     "Goldman", "Morgan", "Home", "Procter", "CVS", "UnitedHealth", 
     "Kroger", "Boeing", "AmerisourceBergen", "Costco", "Merrill", 
     "Target", "State", "WellPoint", "Dell", "Johnson", "Marathon", 
     "Lehman", "Wachovia", "United", "Walgreen", "Wells", "Dow", 
     "MetLife", "Microsoft", "Sears", "United", "Pfizer", "Lowe's", 
     "Time", "Caterpillar", "Medco", "Archer", "Fannie", "Freddie", 
     "Safeway", "Sunoco", "Lockheed", "Sprint", "PepsiCo", "Intel", 
     "Altria", "Supervalu", "Kraft", "Allstate", "Motorola", "Best", 
     "Walt", "FedEx", "Ingram", "Sysco", "Cisco", "Johnson", 
     "Honeywell", "Prudential", "American", "Northrop", "Hess", "GMAC", 
     "Comcast", "Alcoa", "DuPont", "New", "Coca-Cola", "News", "Aetna", 
     "TIAA-CREF", "General", "Tyson", "HCA", "Enterprise", "Macy's", 
     "Delphi", "Travelers", "Liberty", "Hartford", "Abbott", 
     "Washington", "Humana", "Massachusetts", "3M" }; 
public static String[] cities = { "Alaska", "Arizona ", "Arkansas ", 
     "California ", "Colorado ", "Connecticut ", "Delaware ", 
     "District of", "Florida ", "Georgia ", "Hawaii ", "Idaho ", 
     "Illinois ", "Indiana ", "Iowa ", "Kansas ", "Kentucky ", 
     "Louisiana ", "Maine ", "Maryland ", "Massachusetts ", "Michigan ", 
     "Minnesota ", "Mississippi ", "Missouri ", "Montana ", "Nebraska ", 
     "Nevada ", "New Hampshire", "New Jersey", "New Mexico", "New York", 
     "North Carolina", "North Dakota", "Ohio ", "Oklahoma ", "Oregon ", 
     "Pennsylvania ", "Rhode Island", "South Carolina", "South Dakota", 
     "Tennessee ", "Texas ", "Utah ", "Vermont ", "Virginia ", 
     "Washington ", "West Virginia", "Wisconsin ", "Wyoming " }; 

public static void main(String arg[]) throws Exception { 
    try { 
     JFrame.setDefaultLookAndFeelDecorated(true); 
     UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName()); 
    } catch (Exception e) { 
     e.printStackTrace(); 
    } 
    int rows = customers.length; 
    int columns = columnNames.length; 
    Object data[][] = new Object[rows][columns]; 
    for (int i = 0; i < rows; ++i) { 
     data[i][0] = customers[i]; 
    } 
    for (int i = 0; i < rows; ++i) { 
     data[i][1] = cities[i % cities.length]; 
    } 
    for (int i = 0; i < rows; ++i) { 
     data[i][2] = new BigDecimal(Math.random() * 10000); 
     data[i][2] = ((BigDecimal) data[i][2]).setScale(2, 
       BigDecimal.ROUND_CEILING); 
    } 
    for (int i = 3; i < columns; ++i) { 
     for (int x = 0; x < rows; ++x) { 
      data[x][i] = "element:" + x + "," + i; 
     } 
    } 
    JXTable table = new JXTable(data, columnNames) { 

     /** 
     * {@inheritDoc} 
     * <p> 
     * 
     * @see org.jdesktop.swingx.JXTable#packAll() 
     */ 
     @Override 
     public void packAll() { 
      // TODO Auto-generated method stub 
      super.packAll(); 
      firePropertyChange("packAll", "unpacked", "packAll"); 
     } 

    }; 
    table.putClientProperty(AbstractSearchable.MATCH_HIGHLIGHTER, 
      Boolean.TRUE); 
    AbstractHighlighter match = new ColorHighlighter(
      HighlighterFactory.LINE_PRINTER, Color.BLACK); 
    ((AbstractSearchable) table.getSearchable()).setMatchHighlighter(match); 
    table.setColumnControlVisible(true); 

    JScrollPane scrollPane = new JScrollPane(table); 
    JXFindBar findBar = new JXFindBar(table.getSearchable()); 
    FixTableManager tableHeader = new FixTableManager(table, scrollPane); 
    // 固定å‰ä¸‰åˆ— 
    tableHeader.setFixCol(2); 
    table.addPropertyChangeListener(tableHeader); 
    table.addKeyListener(tableHeader); 

    match.addChangeListener(tableHeader); 
    JFrame frame = new JFrame("Test"); 
    frame.add(BorderLayout.SOUTH, findBar); 
    frame.add("Center", scrollPane); 
    frame.setSize(600, 450); 
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
    frame.setVisible(true); 
} 

/** 
* {@inheritDoc} 
* <p> 
* 
* @see java.beans.PropertyChangeListener#propertyChange(java.beans.PropertyChangeEvent) 
*/ 
@Override 
public void propertyChange(final PropertyChangeEvent evt) { 
    // TODO Auto-generated method stub 
    if (evt.getPropertyName().equals("packAll")) { 
     ajustClip(); 
    } 

} 

/** 
* 
*/ 
public void ajustClip() { 
    SwingUtilities.invokeLater(new Runnable() { 
     @Override 
     public void run() { 
      mouseListener.freeze();     
     } 
    }); 
} 

/** 
* {@inheritDoc} 
* <p> 
* 
* @see java.awt.event.KeyListener#keyTyped(java.awt.event.KeyEvent) 
*/ 
@Override 
public void keyTyped(KeyEvent e) { 
    // TODO Auto-generated method stub 

} 

/** 
* {@inheritDoc} 
* <p> 
* 
* @see java.awt.event.KeyListener#keyPressed(java.awt.event.KeyEvent) 
*/ 
@Override 
public void keyPressed(KeyEvent e) { 
    // TODO Auto-generated method stub 
    int c = e.getKeyCode(); 
    if (c == KeyEvent.VK_LEFT) { 
     adjustScroll(table.getSelectedColumn()); 

    } 
} 

/** 
* @param co 
*/ 
private void adjustScroll(int co) { 
    if (co >= 0) { 
     Rectangle r = table.getCellRect(1, co, true); 
     Point p = new Point(r.x - r.width, r.y); 
     Point copy = SwingUtilities.convertPoint(table, p, scrollPane); 
     Rectangle visiblearea = (Rectangle) scrollPane.getVisibleRect() 
       .clone(); 
     visiblearea.x = mouseListener.getDivision(); 
     if (!visiblearea.contains(copy)) { 
      Rectangle rect = table.getVisibleRect(); 
      rect.x = p.x - mouseListener.getDivision(); 
      table.scrollRectToVisible(rect); 
     } 
    } 
} 

/** 
* {@inheritDoc} 
* <p> 
* 
* @see java.awt.event.KeyListener#keyReleased(java.awt.event.KeyEvent) 
*/ 
@Override 
public void keyReleased(KeyEvent e) { 
    // No es necesario implementar 
} 

/** 
* {@inheritDoc} 
* <p> 
* 
* @see javax.swing.event.ChangeListener#stateChanged(javax.swing.event.ChangeEvent) 
*/ 
@Override 
public void stateChanged(ChangeEvent e) { 
    // El searchResult del searchable de la tabla es privado por lo que se 
    // utiliza refelexion para acceder a el y obtener la columna donde esta 
    // el resultado 

    try { 
     Field atributo = AbstractSearchable.class 
       .getDeclaredField("lastSearchResult"); 
     atributo.setAccessible(true); 

     SearchResult search = (SearchResult) atributo.get((table 
       .getSearchable())); 
     adjustScroll(search.getFoundColumn()); 

    } catch (NoSuchFieldException | SecurityException 
      | IllegalArgumentException | IllegalAccessException e1) { 
     // No se han presentado estas excepciones 

    } 

} 

} 

J'ai trouvé ce code et résoudre de nombreux problèmes, mais il y a d'autres que je ne peux pas solve (redimensionner en-tête lorsque défilement à la fin). J'espère que les gens pourront l'utiliser et l'améliorer. Le code requiered la librairie SwingX