如何在Eclipse RCP中实现自定义树列和单元格

Question

I need to implement custom columns in Eclipse RCP for tree component. Columns like Combo or a selection button that can display another selection dialog. By default, Eclipse tree columns only support raw text strings. I want to replace the simple TextBox (or label) with another control. How can I achieve that? The following example implements a simple text cells.

Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new FillLayout());
Table table = new Table(shell, SWT.BORDER);
table.setHeaderVisible(true);
table.setLinesVisible(true);

for (int i = 0; i < 2; i++) {
    new TableColumn(table, SWT.NONE);
}
table.getColumn(0).setText ("Task");
table.getColumn(1).setText ("Progress");
for (int i = 0; i < 40; i++) {
    TableItem item = new TableItem(table, SWT.NONE);
    item.setText("Task " + i);
}
table.getColumn(0).pack();
table.getColumn(1).setWidth(128);
shell.pack();
shell.open();
while (!shell.isDisposed()) {
    if (!display.readAndDispatch()) {
        display.sleep();
    }
}
display.dispose();

Answer 1

If you want to put Controls there, it's probably not because you can only display text (which itself isn't exactly true), it's because you want the contents to be editable. So use cell editors 1 . You can written tutorials at https://eclipse.org/articles/Article-Table-viewer/table_viewer.html and http://www.java2s.com/Tutorial/Java/0280__SWT/TableCellEditorComboTextandButton.htm .