Question

在jface的tableviewer中，怎么通过双击事件得到点击的是哪个单元格？

如题，拜托，百毒和谷歌都找过了，没有任何资料啊

Answer 1

我来试试：

import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.MouseAdapter;
import org.eclipse.swt.events.MouseEvent;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Label;
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 Test {

public static void main(String[] args) {

Display display = new Display();
final Shell shell = new Shell(display);
shell.setSize(450, 300);
shell.setText("Test");

final Label label = new Label(shell, SWT.NONE);
label.setBounds(50, 178, 311, 60);

TableViewer tableViewer = new TableViewer(shell, SWT.BORDER
| SWT.FULL_SELECTION);
final Table table = tableViewer.getTable();
table.setHeaderVisible(true);
table.addMouseListener(new MouseAdapter() {
@Override
public void mouseDoubleClick(MouseEvent e) {
int rowIndex = table.getSelectionIndex();
int columnIndex = -1;
int left = 0;
for (int i = 0; i < table.getColumns().length; i++) {
left += table.getColumns()[i].getWidth();
if (e.x < left) {
columnIndex = i;
break;
}
}
if(columnIndex != -1) {
String text = table.getItem(rowIndex).getText(columnIndex);
label.setText("double click on: "+ text);
Shell shell = new Shell();
MessageDialog.openInformation(shell, "信息", "双击单元格："+text);
}
}
});
table.setBounds(34, 25, 350, 118);

TableColumn tableColumn = new TableColumn(table, SWT.NONE);
tableColumn.setWidth(100);
tableColumn.setText("Column One");

tableColumn = new TableColumn(table, SWT.NONE);
tableColumn.setWidth(100);
tableColumn.setText("Column Two");

tableColumn = new TableColumn(table, SWT.NONE);
tableColumn.setWidth(100);
tableColumn.setText("Column Three");

TableItem tableItem = new TableItem(table, SWT.NONE);
tableItem.setText(new String[] { "1.1", "1.2", "1.3" });

tableItem = new TableItem(table, SWT.NONE);
tableItem.setText(new String[] { "2.1", "2.2", "2.3" });

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