new CCombo(Composite com, int style) : CCombo « org.eclipse.swt.custom « Java by API

1. Java by API
2. org.eclipse.swt.custom
3. CCombo

new CCombo(Composite com, int style)

import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.CCombo;
import org.eclipse.swt.custom.TableEditor;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.events.MouseAdapter;
import org.eclipse.swt.events.MouseEvent;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;
import org.eclipse.swt.widgets.TableItem;
import org.eclipse.swt.widgets.Text;

public class MainClass {

  public static void main(String[] a) {

    final Display d = new Display();
    final Shell shell = new Shell(d);

    shell.setSize(250, 200);

    shell.setLayout(new FillLayout());
    final int NUM = 5;

    final String[] options = { "Option 1", "Option 2", "Option 3" };

    final Table table = new Table(shell, SWT.SINGLE | SWT.FULL_SELECTION | SWT.HIDE_SELECTION);
    table.setHeaderVisible(true);
    table.setLinesVisible(true);

    for (int i = 0; i < NUM; i++) {
      TableColumn column = new TableColumn(table, SWT.CENTER);
      column.setText("Column " + (i + 1));
      column.pack();
    }

    TableEditor[] colorEditors = new TableEditor[NUM];

    Button[] colorButtons = new Button[NUM];

    for (int i = 0; i < NUM; i++) {
      final TableItem item = new TableItem(table, SWT.NONE);

      colorEditors[i] = new TableEditor(table);
      colorButtons[i] = new Button(table, SWT.PUSH);

      colorEditors[i].setEditor(colorButtons[i], item, 0);
    }

    final TableEditor editor = new TableEditor(table);
    editor.horizontalAlignment = SWT.LEFT;
    editor.grabHorizontal = true;

    table.addMouseListener(new MouseAdapter() {
      public void mouseDown(MouseEvent event) {
        Control old = editor.getEditor();
        if (old != null)
          old.dispose();

        Point pt = new Point(event.x, event.y);

        final TableItem item = table.getItem(pt);
        if (item != null) {
          int column = -1;
          for (int i = 0, n = table.getColumnCount(); i < n; i++) {
            Rectangle rect = item.getBounds(i);
            if (rect.contains(pt)) {
              column = i;
              break;
            }
          }
          if (column == 1) {
            final CCombo combo = new CCombo(table, SWT.READ_ONLY);
            for (int i = 0, n = options.length; i < n; i++) {
              combo.add(options[i]);
            }

            combo.select(combo.indexOf(item.getText(column)));

            editor.minimumWidth = combo.computeSize(SWT.DEFAULT, SWT.DEFAULT).x;
            table.getColumn(column).setWidth(editor.minimumWidth);

            combo.setFocus();
            editor.setEditor(combo, item, column);

          } else if (column > 1) {
            final Text text = new Text(table, SWT.NONE);
            text.setForeground(item.getForeground());

            text.setText(item.getText(column));
            text.setForeground(item.getForeground());
            text.selectAll();
            text.setFocus();

            editor.minimumWidth = text.getBounds().width;

            editor.setEditor(text, item, column);

          }
        }
      }
    });

    shell.open();
    while (!shell.isDisposed()) {
      if (!d.readAndDispatch())
        d.sleep();
    }
    d.dispose();
  }
}

           
       

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