multiple Font Cell Table Example : Grid Table « Swing Components « Java






multiple Font Cell Table Example

 
// Example from http://www.crionics.com/products/opensource/faq/swing_ex/SwingExamples.html
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.GridLayout;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.util.Enumeration;
import java.util.Vector;

import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JColorChooser;
import javax.swing.JComboBox;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JSeparator;
import javax.swing.JTable;
import javax.swing.ListSelectionModel;
import javax.swing.SwingConstants;
import javax.swing.UIManager;
import javax.swing.border.Border;
import javax.swing.border.EmptyBorder;
import javax.swing.event.TableModelEvent;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableModel;

/**
 * @version 1.0 11/22/98
 */
public class MultiFontCellTableExample extends JFrame {

  public MultiFontCellTableExample() {
    super("Multi-Font Cell Example");

    AttributiveCellTableModel ml = new AttributiveCellTableModel(8, 3);
    CellFont cellAtt = (CellFont) ml.getCellAttribute();
    JTable table = new JTable(ml);
    table.setRowHeight(26);
    table.setCellSelectionEnabled(true);
    table.setSelectionMode(ListSelectionModel.SINGLE_INTERVAL_SELECTION);
    table.setDefaultRenderer(Object.class, new AttributiveCellRenderer());
    JScrollPane scroll = new JScrollPane(table);

    FontPanel fontPanel = new FontPanel(table, cellAtt);

    Box box = new Box(BoxLayout.X_AXIS);
    box.add(scroll);
    box.add(new JSeparator(SwingConstants.HORIZONTAL));
    box.add(fontPanel);
    getContentPane().add(box);
    setSize(400, 200);
    setVisible(true);
  }

  class FontPanel extends JPanel {
    String[] str_size = { "10", "12", "14", "16", "20", "24" };

    String[] str_style = { "PLAIN", "BOLD", "ITALIC" };

    JComboBox name, style, size;

    FontPanel(final JTable table, final CellFont cellAtt) {
      setLayout(new BoxLayout(this, BoxLayout.Y_AXIS));
      Box box = new Box(BoxLayout.X_AXIS);
      JPanel p2 = new JPanel(new GridLayout(3, 1));
      JPanel p3 = new JPanel(new GridLayout(3, 1));
      JPanel p4 = new JPanel(new FlowLayout());
      p2.add(new JLabel("Name:"));
      p2.add(new JLabel("Style:"));
      p2.add(new JLabel("Size:"));
      Toolkit toolkit = Toolkit.getDefaultToolkit();
      name = new JComboBox(toolkit.getFontList());
      style = new JComboBox(str_style);
      size = new JComboBox(str_size);
      size.setEditable(true);
      JButton b_apply = new JButton("Apply");
      b_apply.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent e) {
          int[] columns = table.getSelectedColumns();
          int[] rows = table.getSelectedRows();
          if ((rows == null) || (columns == null))
            return;
          if ((rows.length < 1) || (columns.length < 1))
            return;
          Font font = new Font((String) name.getSelectedItem(), style
              .getSelectedIndex(), Integer.parseInt((String) size
              .getSelectedItem()));
          cellAtt.setFont(font, rows, columns);
          table.clearSelection();
          table.revalidate();
          table.repaint();
        }
      });
      p3.add(name);
      p3.add(style);
      p3.add(size);
      p4.add(b_apply);
      box.add(p2);
      box.add(p3);
      add(box);
      add(p4);
    }
  }

  public static void main(String[] args) {
    MultiFontCellTableExample frame = new MultiFontCellTableExample();
    frame.addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent e) {
        System.exit(0);
      }
    });
  }
}

/**
 * @version 1.0 11/22/98
 */

class AttributiveCellTableModel extends DefaultTableModel {

  protected CellAttribute cellAtt;

  public AttributiveCellTableModel() {
    this((Vector) null, 0);
  }

  public AttributiveCellTableModel(int numRows, int numColumns) {
    Vector names = new Vector(numColumns);
    names.setSize(numColumns);
    setColumnIdentifiers(names);
    dataVector = new Vector();
    setNumRows(numRows);
    cellAtt = new DefaultCellAttribute(numRows, numColumns);
  }

  public AttributiveCellTableModel(Vector columnNames, int numRows) {
    setColumnIdentifiers(columnNames);
    dataVector = new Vector();
    setNumRows(numRows);
    cellAtt = new DefaultCellAttribute(numRows, columnNames.size());
  }

  public AttributiveCellTableModel(Object[] columnNames, int numRows) {
    this(convertToVector(columnNames), numRows);
  }

  public AttributiveCellTableModel(Vector data, Vector columnNames) {
    setDataVector(data, columnNames);
  }

  public AttributiveCellTableModel(Object[][] data, Object[] columnNames) {
    setDataVector(data, columnNames);
  }

  public void setDataVector(Vector newData, Vector columnNames) {
    if (newData == null)
      throw new IllegalArgumentException(
          "setDataVector() - Null parameter");
    dataVector = new Vector(0);
    setColumnIdentifiers(columnNames);
    dataVector = newData;

    //
    cellAtt = new DefaultCellAttribute(dataVector.size(), columnIdentifiers
        .size());

    newRowsAdded(new TableModelEvent(this, 0, getRowCount() - 1,
        TableModelEvent.ALL_COLUMNS, TableModelEvent.INSERT));
  }

  public void addColumn(Object columnName, Vector columnData) {
    if (columnName == null)
      throw new IllegalArgumentException("addColumn() - null parameter");
    columnIdentifiers.addElement(columnName);
    int index = 0;
    Enumeration eeration = dataVector.elements();
    while (eeration.hasMoreElements()) {
      Object value;
      if ((columnData != null) && (index < columnData.size()))
        value = columnData.elementAt(index);
      else
        value = null;
      ((Vector) eeration.nextElement()).addElement(value);
      index++;
    }

    //
    cellAtt.addColumn();

    fireTableStructureChanged();
  }

  public void addRow(Vector rowData) {
    Vector newData = null;
    if (rowData == null) {
      newData = new Vector(getColumnCount());
    } else {
      rowData.setSize(getColumnCount());
    }
    dataVector.addElement(newData);

    //
    cellAtt.addRow();

    newRowsAdded(new TableModelEvent(this, getRowCount() - 1,
        getRowCount() - 1, TableModelEvent.ALL_COLUMNS,
        TableModelEvent.INSERT));
  }

  public void insertRow(int row, Vector rowData) {
    if (rowData == null) {
      rowData = new Vector(getColumnCount());
    } else {
      rowData.setSize(getColumnCount());
    }

    dataVector.insertElementAt(rowData, row);

    //
    cellAtt.insertRow(row);

    newRowsAdded(new TableModelEvent(this, row, row,
        TableModelEvent.ALL_COLUMNS, TableModelEvent.INSERT));
  }

  public CellAttribute getCellAttribute() {
    return cellAtt;
  }

  public void setCellAttribute(CellAttribute newCellAtt) {
    int numColumns = getColumnCount();
    int numRows = getRowCount();
    if ((newCellAtt.getSize().width != numColumns)
        || (newCellAtt.getSize().height != numRows)) {
      newCellAtt.setSize(new Dimension(numRows, numColumns));
    }
    cellAtt = newCellAtt;
    fireTableDataChanged();
  }

  /*
   * public void changeCellAttribute(int row, int column, Object command) {
   * cellAtt.changeAttribute(row, column, command); }
   * 
   * public void changeCellAttribute(int[] rows, int[] columns, Object
   * command) { cellAtt.changeAttribute(rows, columns, command); }
   */

}

/**
 * @version 1.0 11/22/98
 */

class DefaultCellAttribute
//    implements CellAttribute ,CellSpan {
    implements CellAttribute, CellSpan, ColoredCell, CellFont {

  //
  // !!!! CAUTION !!!!!
  // these values must be synchronized to Table data
  //
  protected int rowSize;

  protected int columnSize;

  protected int[][][] span; // CellSpan

  protected Color[][] foreground; // ColoredCell

  protected Color[][] background; //

  protected Font[][] font; // CellFont

  public DefaultCellAttribute() {
    this(1, 1);
  }

  public DefaultCellAttribute(int numRows, int numColumns) {
    setSize(new Dimension(numColumns, numRows));
  }

  protected void initValue() {
    for (int i = 0; i < span.length; i++) {
      for (int j = 0; j < span[i].length; j++) {
        span[i][j][CellSpan.COLUMN] = 1;
        span[i][j][CellSpan.ROW] = 1;
      }
    }
  }

  //
  // CellSpan
  //
  public int[] getSpan(int row, int column) {
    if (isOutOfBounds(row, column)) {
      int[] ret_code = { 1, 1 };
      return ret_code;
    }
    return span[row][column];
  }

  public void setSpan(int[] span, int row, int column) {
    if (isOutOfBounds(row, column))
      return;
    this.span[row][column] = span;
  }

  public boolean isVisible(int row, int column) {
    if (isOutOfBounds(row, column))
      return false;
    if ((span[row][column][CellSpan.COLUMN] < 1)
        || (span[row][column][CellSpan.ROW] < 1))
      return false;
    return true;
  }

  public void combine(int[] rows, int[] columns) {
    if (isOutOfBounds(rows, columns))
      return;
    int rowSpan = rows.length;
    int columnSpan = columns.length;
    int startRow = rows[0];
    int startColumn = columns[0];
    for (int i = 0; i < rowSpan; i++) {
      for (int j = 0; j < columnSpan; j++) {
        if ((span[startRow + i][startColumn + j][CellSpan.COLUMN] != 1)
            || (span[startRow + i][startColumn + j][CellSpan.ROW] != 1)) {
          //System.out.println("can't combine");
          return;
        }
      }
    }
    for (int i = 0, ii = 0; i < rowSpan; i++, ii--) {
      for (int j = 0, jj = 0; j < columnSpan; j++, jj--) {
        span[startRow + i][startColumn + j][CellSpan.COLUMN] = jj;
        span[startRow + i][startColumn + j][CellSpan.ROW] = ii;
        //System.out.println("r " +ii +" c " +jj);
      }
    }
    span[startRow][startColumn][CellSpan.COLUMN] = columnSpan;
    span[startRow][startColumn][CellSpan.ROW] = rowSpan;

  }

  public void split(int row, int column) {
    if (isOutOfBounds(row, column))
      return;
    int columnSpan = span[row][column][CellSpan.COLUMN];
    int rowSpan = span[row][column][CellSpan.ROW];
    for (int i = 0; i < rowSpan; i++) {
      for (int j = 0; j < columnSpan; j++) {
        span[row + i][column + j][CellSpan.COLUMN] = 1;
        span[row + i][column + j][CellSpan.ROW] = 1;
      }
    }
  }

  //
  // ColoredCell
  //
  public Color getForeground(int row, int column) {
    if (isOutOfBounds(row, column))
      return null;
    return foreground[row][column];
  }

  public void setForeground(Color color, int row, int column) {
    if (isOutOfBounds(row, column))
      return;
    foreground[row][column] = color;
  }

  public void setForeground(Color color, int[] rows, int[] columns) {
    if (isOutOfBounds(rows, columns))
      return;
    setValues(foreground, color, rows, columns);
  }

  public Color getBackground(int row, int column) {
    if (isOutOfBounds(row, column))
      return null;
    return background[row][column];
  }

  public void setBackground(Color color, int row, int column) {
    if (isOutOfBounds(row, column))
      return;
    background[row][column] = color;
  }

  public void setBackground(Color color, int[] rows, int[] columns) {
    if (isOutOfBounds(rows, columns))
      return;
    setValues(background, color, rows, columns);
  }

  //

  //
  // CellFont
  //
  public Font getFont(int row, int column) {
    if (isOutOfBounds(row, column))
      return null;
    return font[row][column];
  }

  public void setFont(Font font, int row, int column) {
    if (isOutOfBounds(row, column))
      return;
    this.font[row][column] = font;
  }

  public void setFont(Font font, int[] rows, int[] columns) {
    if (isOutOfBounds(rows, columns))
      return;
    setValues(this.font, font, rows, columns);
  }

  //

  //
  // CellAttribute
  //
  public void addColumn() {
    int[][][] oldSpan = span;
    int numRows = oldSpan.length;
    int numColumns = oldSpan[0].length;
    span = new int[numRows][numColumns + 1][2];
    System.arraycopy(oldSpan, 0, span, 0, numRows);
    for (int i = 0; i < numRows; i++) {
      span[i][numColumns][CellSpan.COLUMN] = 1;
      span[i][numColumns][CellSpan.ROW] = 1;
    }
  }

  public void addRow() {
    int[][][] oldSpan = span;
    int numRows = oldSpan.length;
    int numColumns = oldSpan[0].length;
    span = new int[numRows + 1][numColumns][2];
    System.arraycopy(oldSpan, 0, span, 0, numRows);
    for (int i = 0; i < numColumns; i++) {
      span[numRows][i][CellSpan.COLUMN] = 1;
      span[numRows][i][CellSpan.ROW] = 1;
    }
  }

  public void insertRow(int row) {
    int[][][] oldSpan = span;
    int numRows = oldSpan.length;
    int numColumns = oldSpan[0].length;
    span = new int[numRows + 1][numColumns][2];
    if (0 < row) {
      System.arraycopy(oldSpan, 0, span, 0, row - 1);
    }
    System.arraycopy(oldSpan, 0, span, row, numRows - row);
    for (int i = 0; i < numColumns; i++) {
      span[row][i][CellSpan.COLUMN] = 1;
      span[row][i][CellSpan.ROW] = 1;
    }
  }

  public Dimension getSize() {
    return new Dimension(rowSize, columnSize);
  }

  public void setSize(Dimension size) {
    columnSize = size.width;
    rowSize = size.height;
    span = new int[rowSize][columnSize][2]; // 2: COLUMN,ROW
    foreground = new Color[rowSize][columnSize];
    background = new Color[rowSize][columnSize];
    font = new Font[rowSize][columnSize];
    initValue();
  }

  /*
   * public void changeAttribute(int row, int column, Object command) { }
   * 
   * public void changeAttribute(int[] rows, int[] columns, Object command) { }
   */

  protected boolean isOutOfBounds(int row, int column) {
    if ((row < 0) || (rowSize <= row) || (column < 0)
        || (columnSize <= column)) {
      return true;
    }
    return false;
  }

  protected boolean isOutOfBounds(int[] rows, int[] columns) {
    for (int i = 0; i < rows.length; i++) {
      if ((rows[i] < 0) || (rowSize <= rows[i]))
        return true;
    }
    for (int i = 0; i < columns.length; i++) {
      if ((columns[i] < 0) || (columnSize <= columns[i]))
        return true;
    }
    return false;
  }

  protected void setValues(Object[][] target, Object value, int[] rows,
      int[] columns) {
    for (int i = 0; i < rows.length; i++) {
      int row = rows[i];
      for (int j = 0; j < columns.length; j++) {
        int column = columns[j];
        target[row][column] = value;
      }
    }
  }
}

/**
 * @version 1.0 11/22/98
 */

/*
 * (swing1.1beta3)
 *  
 */
/**
 * @version 1.0 11/22/98
 */

interface CellAttribute {

  public void addColumn();

  public void addRow();

  public void insertRow(int row);

  public Dimension getSize();

  public void setSize(Dimension size);

}

interface ColoredCell {

  public Color getForeground(int row, int column);

  public void setForeground(Color color, int row, int column);

  public void setForeground(Color color, int[] rows, int[] columns);

  public Color getBackground(int row, int column);

  public void setBackground(Color color, int row, int column);

  public void setBackground(Color color, int[] rows, int[] columns);

}
/**
 * @version 1.0 11/22/98
 */

class AttributiveCellRenderer extends JLabel implements TableCellRenderer {
  protected static Border noFocusBorder;

  public AttributiveCellRenderer() {
    noFocusBorder = new EmptyBorder(1, 2, 1, 2);
    setOpaque(true);
    setBorder(noFocusBorder);
  }

  public Component getTableCellRendererComponent(JTable table, Object value,
      boolean isSelected, boolean hasFocus, int row, int column) {
    Color foreground = null;
    Color background = null;
    Font font = null;
    TableModel model = table.getModel();
    if (model instanceof AttributiveCellTableModel) {
      CellAttribute cellAtt = ((AttributiveCellTableModel) model)
          .getCellAttribute();
      if (cellAtt instanceof ColoredCell) {
        foreground = ((ColoredCell) cellAtt).getForeground(row, column);
        background = ((ColoredCell) cellAtt).getBackground(row, column);
      }
      if (cellAtt instanceof CellFont) {
        font = ((CellFont) cellAtt).getFont(row, column);
      }
    }
    if (isSelected) {
      setForeground((foreground != null) ? foreground : table
          .getSelectionForeground());
      setBackground(table.getSelectionBackground());
    } else {
      setForeground((foreground != null) ? foreground : table
          .getForeground());
      setBackground((background != null) ? background : table
          .getBackground());
    }
    setFont((font != null) ? font : table.getFont());

    if (hasFocus) {
      setBorder(UIManager.getBorder("Table.focusCellHighlightBorder"));
      if (table.isCellEditable(row, column)) {
        setForeground((foreground != null) ? foreground : UIManager
            .getColor("Table.focusCellForeground"));
        setBackground(UIManager.getColor("Table.focusCellBackground"));
      }
    } else {
      setBorder(noFocusBorder);
    }
    setValue(value);
    return this;
  }

  protected void setValue(Object value) {
    setText((value == null) ? "" : value.toString());
  }
}

/**
 * @version 1.0 11/22/98
 */

class TextPreviewLabel extends JLabel {
  private String sampleText = "  Sample Text  Sample Text  ";

  boolean isForgroundSelection;

  public TextPreviewLabel() {
    this(Color.black, Color.white, true);
  }

  public TextPreviewLabel(Color fore, Color back, boolean isForgroundSelection) {
    setOpaque(true);
    setForeground(fore);
    setBackground(back);
    this.isForgroundSelection = isForgroundSelection;
    setText(sampleText);
  }

  public void setForeground(Color col) {
    if (isForgroundSelection) {
      super.setForeground(col);
    } else {
      super.setBackground(col);
    }
  }

}

class ColorChooserDialog extends JDialog {
  private Color initialColor;

  private Color retColor;

  private JColorChooser chooserPane;

  public ColorChooserDialog(Component c, String title,
      final JColorChooser chooserPane) {
    super(JOptionPane.getFrameForComponent(c), title, true);
    setResizable(false);

    this.chooserPane = chooserPane;

    String okString = UIManager.getString("ColorChooser.okText");
    String cancelString = UIManager.getString("ColorChooser.cancelText");
    String resetString = UIManager.getString("ColorChooser.resetText");

    Container contentPane = getContentPane();
    contentPane.setLayout(new BorderLayout());
    contentPane.add(chooserPane, BorderLayout.CENTER);

    JPanel buttonPane = new JPanel();
    buttonPane.setLayout(new FlowLayout(FlowLayout.CENTER));
    JButton okButton = new JButton(okString);
    getRootPane().setDefaultButton(okButton);
    okButton.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e) {
        retColor = chooserPane.getColor();
        setVisible(false);
      }
    });
    buttonPane.add(okButton);

    JButton cancelButton = new JButton(cancelString);
    cancelButton.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e) {
        retColor = null;
        setVisible(false);
      }
    });
    buttonPane.add(cancelButton);

    JButton resetButton = new JButton(resetString);
    resetButton.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e) {
        chooserPane.setColor(initialColor);
      }
    });
    buttonPane.add(resetButton);
    contentPane.add(buttonPane, BorderLayout.SOUTH);

    pack();
    setLocationRelativeTo(c);
    addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent e) {
        setVisible(false);
      }
    });
  }

  public Color getColor() {
    return retColor;
  }

}

class TextColorChooser extends JColorChooser {

  public TextColorChooser(Color target, Color reference,
      boolean isForgroundSelection) {
    super(target);
    if (isForgroundSelection) {
      setPreviewPanel(new TextPreviewLabel(target, reference,
          isForgroundSelection));
    } else {
      setPreviewPanel(new TextPreviewLabel(reference, target,
          isForgroundSelection));
    }
    updateUI();
  }

  public Color showDialog(Component component, String title) {
    ColorChooserDialog dialog = new ColorChooserDialog(component, title,
        this);
    dialog.show();
    Color col = dialog.getColor();
    dialog.dispose();
    return col;
  }

}

interface CellFont {

  public Font getFont(int row, int column);

  public void setFont(Font font, int row, int column);

  public void setFont(Font font, int[] rows, int[] columns);

}

interface CellSpan {
  public final int ROW = 0;

  public final int COLUMN = 1;

  public int[] getSpan(int row, int column);

  public void setSpan(int[] span, int row, int column);

  public boolean isVisible(int row, int column);

  public void combine(int[] rows, int[] columns);

  public void split(int row, int column);

}

           
         
  








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