Demonstrates TableCursor : Table « SWT JFace Eclipse « Java
Demonstrates TableCursor
//Send questions, comments, bug reports, etc. to the authors:
//Rob Warner (rwarner@interspatial.com)
//Robert Harris (rbrt_harris@yahoo.com)
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.*;
import org.eclipse.swt.events.*;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.widgets.*;
/**
* This class demonstrates TableCursor
*/
public class TableCursorTest {
// The number of rows and columns
private static final int NUM = 5;
/**
* Runs the program
*/
public void run() {
Display display = new Display();
Shell shell = new Shell(display);
shell.setText("Table Cursor Test");
createContents(shell);
shell.pack();
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
display.sleep();
}
}
display.dispose();
}
/**
* Creates the main window's contents
*
* @param shell the main window
*/
private void createContents(Shell shell) {
shell.setLayout(new FillLayout());
// Create the table
final Table table = new Table(shell, SWT.SINGLE | SWT.FULL_SELECTION);
table.setHeaderVisible(true);
table.setLinesVisible(true);
// Create the columns
for (int i = 0; i < NUM; i++) {
TableColumn column = new TableColumn(table, SWT.CENTER);
column.setText("Column " + (i + 1));
column.pack();
}
// Create the rows
for (int i = 0; i < NUM; i++) {
new TableItem(table, SWT.NONE);
}
// Create the TableCursor
final TableCursor cursor = new TableCursor(table, SWT.NONE);
// Create the editor
// Use a ControlEditor, not a TableEditor, because the cursor is the parent
final ControlEditor editor = new ControlEditor(cursor);
editor.grabHorizontal = true;
editor.grabVertical = true;
// Add the event handling
cursor.addSelectionListener(new SelectionAdapter() {
// This is called as the user navigates around the table
public void widgetSelected(SelectionEvent event) {
// Select the row in the table where the TableCursor is
table.setSelection(new TableItem[] { cursor.getRow()});
}
// This is called when the user hits Enter
public void widgetDefaultSelected(SelectionEvent event) {
// Begin an editing session
// Notice that the parent of the Text is the TableCursor, not the Table
final Text text = new Text(cursor, SWT.NONE);
text.setFocus();
// Copy the text from the cell to the Text
text.setText(cursor.getRow().getText(cursor.getColumn()));
text.setFocus();
// Add a handler to detect key presses
text.addKeyListener(new KeyAdapter() {
public void keyPressed(KeyEvent event) {
// End the editing and save the text if the user presses Enter
// End the editing and throw away the text if the user presses Esc
switch (event.keyCode) {
case SWT.CR:
cursor.getRow().setText(cursor.getColumn(), text.getText());
case SWT.ESC:
text.dispose();
break;
}
}
});
editor.setEditor(text);
}
});
}
/**
* The application entry point
*
* @param args the command line arguments
*/
public static void main(String[] args) {
new TableCursorTest().run();
}
}
