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| Re: Table with 2 checkboxes per row [message #432041 is a reply to message #431352] |
Mon, 15 March 2004 14:52  |
 Thomas Hofmann
Messages: 6
Registered: July 2009 |
Junior Member |
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OK, I found it, https://bugs.eclipse.org/bugs/show_bug.cgi?id=49667
Meanwhile I discovered the attached solution (thanks Horst!), which
basically does
the same. However it looks a bit like a handcraft workaround... ;-)
Thanks, Thomas
---
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.TableEditor;
import org.eclipse.swt.events.FocusAdapter;
import org.eclipse.swt.events.FocusEvent;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Button;
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;
public class Main {
Table table;
Shell shell;
List tableEditors = new ArrayList();
public static void main(String[] args) {
new Main().run();
}
public void run() {
Display display = new Display();
shell = new Shell(display);
shell.setText("CheckBoxes Test");
shell.setLayout(new FillLayout());
setupTable();
setupEditors();
shell.pack();
shell.open();
shell.setSize(430, 100);
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) display.sleep();
}
display.dispose();
}
private void setupTable() {
table = new Table(shell, SWT.BORDER | SWT.SINGLE | SWT.FULL_SELECTION);
table.setLinesVisible(true);
table.setHeaderVisible(true);
for (int i = 0; i < 2; i++) {
TableColumn column = new TableColumn(table, SWT.NONE);
column.setText("Column " + i);
column.setWidth(200);
}
for (int i = 0; i < 12; i++) {
TableItem item = new TableItem(table, SWT.NONE, i);
item.setText(new String[]{"text " + i, "checkbox " + i});
}
table.addFocusListener(new FocusAdapter() {
public void focusGained(FocusEvent ev) {
// for the last line
int index = table.getSelectionIndex();
if (index < 0) { // just opened
table.select(index = 0);
}
((TableEditor)tableEditors.get(index)).getEditor().setFocus( );
}
});
}
private void setupEditors() {
TableItem[] items = table.getItems();
for (int i = 0; i < items.length; i++) {
final TableEditor editor = new TableEditor(table);
tableEditors.add(editor);
Button checkBox = new Button(table, SWT.CHECK);
checkBox.setBackground(table.getBackground());
checkBox.setText(items[i].getText(1));
editor.grabHorizontal = true;
editor.setEditor(checkBox, items[i], 1);
final int line = i;
checkBox.addFocusListener(new FocusAdapter() {
public void focusGained(FocusEvent e) {
table.select(line);
table.showSelection();
Iterator iter = tableEditors.iterator();
while (iter.hasNext()) {
((TableEditor)iter.next()).layout();
}
}
});
}
}
}
----
"Steve Northover" <steve_northover@ca.ibm.com> schrieb im Newsbeitrag
news:c2ptvh$3mt$1@eclipse.org...
> I think this was just fixed. If not, please enter a bugzilla report (with
a
> stand alone snippet). Thanks.
>
> "Thomas Hofmann" <thomas.hofmann@bedag.ch> wrote in message
> news:c2p93h$82s$1@eclipse.org...
> > Hi
> > I'm trying to setup a table with 2 checkboxes per line to let the user
> > edit 2 respective flags. I found a way with TableViewers using images
> > for on / off. However, I'd like to have real checkboxes.
> > With TableEditors I can put Buttons, styled SWT.CHECK, onto each
> > cell. This seems not to be the intention of the Editor, examples I found
> > used it only temporary for the currently selected row/cell and dispose
it
> > when the cursor moves on. I didn't find ways to have the checkbox
> > without the editor, so I created one for each row.
> > This works almost, problem is: when moving (traversing w/ tab) to a row
> > beeing outside the visible range when the table is scrolled, the Editors
do
> > NOT follow the scrolled position even with an explicite Table.showItem()
> > on FocusLost of the checkboxes. Ordinary cells with only Text DO follow
> ...
> > Thanks for any help
> > Thomas
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