org.eclipse.swt.events.TraverseListener Java Examples

private TraverseListener getTraverseListener( )
{
	return new TraverseListener( ) {

		/**
		 * @see org.eclipse.swt.events.TraverseListener#keyTraversed(TraverseEvent)
		 */
		public void keyTraversed( TraverseEvent e )
		{
			if ( e.widget instanceof StyledText )
			{
				if ( ( e.detail == SWT.TRAVERSE_TAB_NEXT )
						|| ( e.detail == SWT.TRAVERSE_TAB_PREVIOUS ) )
					e.doit = true;
			}
		}
	};
}
 

@Override
protected Text createTextControl(Composite parent) {
	Text text= new Text(parent, SWT.MULTI | SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL);
	text.addTraverseListener(new TraverseListener() {
		public void keyTraversed(TraverseEvent event) {
			switch (event.detail) {
				case SWT.TRAVERSE_ESCAPE:
				case SWT.TRAVERSE_PAGE_NEXT:
				case SWT.TRAVERSE_PAGE_PREVIOUS:
					event.doit= true;
					break;
				case SWT.TRAVERSE_RETURN:
				case SWT.TRAVERSE_TAB_NEXT:
				case SWT.TRAVERSE_TAB_PREVIOUS:
					if ((event.stateMask & SWT.MODIFIER_MASK) != 0) {
						event.doit= true;
					}
					break;
			}

		}
	});
	return text;
}
 

private Control createHeader(Composite parent, Font font, String message) {
	Composite header= new Composite(parent, SWT.NONE);
	GridLayout layout= new GridLayout();
	layout.numColumns= 2;
	layout.marginWidth= 0; layout.marginHeight= 0;
	header.setLayout(layout);
	header.setFont(font);
	Label label= new Label(header, SWT.NONE);
	label.setText(message);
	label.setFont(font);
	label.addTraverseListener(new TraverseListener() {
		public void keyTraversed(TraverseEvent e) {
			if (e.detail == SWT.TRAVERSE_MNEMONIC && e.doit) {
				e.detail= SWT.TRAVERSE_NONE;
				fFilter.setFocus();
			}
		}
	});
	GridData gd= new GridData(GridData.FILL_HORIZONTAL);
	label.setLayoutData(gd);
	
	createViewMenu(header);
	return header;
}
 

public static void addTraverseListener(final Text textArea) {
    textArea.addTraverseListener(new TraverseListener() {
        @Override
        public void keyTraversed(TraverseEvent e) {
            if (e.detail == SWT.TRAVERSE_TAB_NEXT || e.detail == SWT.TRAVERSE_TAB_PREVIOUS) {
                e.doit = true;
            }
        }
    });
}
 

public static void addTraverseListener(final Text textArea) {
	textArea.addTraverseListener(new TraverseListener() {
		public void keyTraversed(TraverseEvent e) {
			if (e.detail == SWT.TRAVERSE_TAB_NEXT
					|| e.detail == SWT.TRAVERSE_TAB_PREVIOUS) {
				e.doit = true;
			}
		}
	});
}
 

private Text createTextCell(Composite composite, int heightFactor, int widthFactor) {
	Text text = toolkit.createText(composite, null, SWT.BORDER | SWT.MULTI | SWT.WRAP);
	text.addTraverseListener(new TraverseListener() {
		public void keyTraversed(TraverseEvent e) {
			if (e.detail == SWT.TRAVERSE_TAB_NEXT || e.detail == SWT.TRAVERSE_TAB_PREVIOUS) {
				e.doit = true;
			}
		}
	});
	setGridData(text, heightFactor, widthFactor);
	return text;
}
 

private void createSREArgsText(Group group, Font font) {
	this.sreArgumentsText = new Text(group, SWT.MULTI | SWT.WRAP | SWT.BORDER | SWT.V_SCROLL);
	this.sreArgumentsText.addTraverseListener(new TraverseListener() {
		@Override
		public void keyTraversed(TraverseEvent event) {
			switch (event.detail) {
			case SWT.TRAVERSE_ESCAPE:
			case SWT.TRAVERSE_PAGE_NEXT:
			case SWT.TRAVERSE_PAGE_PREVIOUS:
				event.doit = true;
				break;
			case SWT.TRAVERSE_RETURN:
			case SWT.TRAVERSE_TAB_NEXT:
			case SWT.TRAVERSE_TAB_PREVIOUS:
				if ((SARLArgumentsTab.this.sreArgumentsText.getStyle() & SWT.SINGLE) != 0) {
					event.doit = true;
				} else {
					if (!SARLArgumentsTab.this.sreArgumentsText.isEnabled() || (event.stateMask & SWT.MODIFIER_MASK) != 0) {
						event.doit = true;
					}
				}
				break;
			default:
			}
		}
	});
	final GridData gd = new GridData(GridData.FILL_BOTH);
	gd.heightHint = HEIGHT_HINT;
	gd.widthHint = WIDTH_HINT;
	this.sreArgumentsText.setLayoutData(gd);
	this.sreArgumentsText.setFont(font);
	this.sreArgumentsText.addModifyListener(new ModifyListener() {
		@SuppressWarnings("synthetic-access")
		@Override
		public void modifyText(ModifyEvent evt) {
			scheduleUpdateJob();
		}
	});
	ControlAccessibleListener.addListener(this.sreArgumentsText, group.getText());
}
 

/**
 * Creates a multi-line textbox.
 * 
 * @param parent a composite control which will be the parent of the new
 *          instance (cannot be null)
 * @param style the style of control to construct
 * @param allowTabs set to <code>true</code> to allow \t characters to be
 *          inserted.
 * @return the new textbox
 */
public static Text createMultilineTextbox(Composite parent, int style, final boolean allowTabs) {
  Text text = new Text(parent, style | SWT.MULTI);
  text.addTraverseListener(new TraverseListener() {
    public void keyTraversed(TraverseEvent e) {
      switch (e.detail) {
        case SWT.TRAVERSE_TAB_NEXT:
          e.doit = !allowTabs;
      }
    }
  });
  return text;
}
 

/**
 * Create the labels for the list and the progress. Return the list label.
 *
 * @param parent
 * @return Label
 */
private Label createLabels(Composite parent) {
	Composite labels = new Composite(parent, SWT.NONE);

	GridLayout layout = new GridLayout();
	layout.numColumns = 2;
	layout.marginWidth = 0;
	layout.marginHeight = 0;
	labels.setLayout(layout);

	Label listLabel = new Label(labels, SWT.NONE);
	listLabel
			.setText(WorkbenchMessages.FilteredItemsSelectionDialog_listLabel);

	listLabel.addTraverseListener(new TraverseListener() {
		
		public void keyTraversed(TraverseEvent e) {
			if (e.detail == SWT.TRAVERSE_MNEMONIC && e.doit) {
				e.detail = SWT.TRAVERSE_NONE;
				list.getTable().setFocus();
			}
		}
	});

	GridData gd = new GridData(GridData.FILL_HORIZONTAL);
	listLabel.setLayoutData(gd);

	progressLabel = new Label(labels, SWT.RIGHT);
	progressLabel.setLayoutData(gd);

	labels.setLayoutData(gd);
	return listLabel;
}
 

/**
 * Create a new header which is labelled by headerLabel.
 *
 * @param parent
 * @return Label the label of the header
 */
private Label createHeader(Composite parent) {
	Composite header = new Composite(parent, SWT.NONE);

	GridLayout layout = new GridLayout();
	layout.numColumns = 2;
	layout.marginWidth = 0;
	layout.marginHeight = 0;
	header.setLayout(layout);

	Label headerLabel = new Label(header, SWT.NONE);
	headerLabel.setText((getMessage() != null && getMessage().trim()
			.length() > 0) ? getMessage()
			: WorkbenchMessages.FilteredItemsSelectionDialog_patternLabel);
	headerLabel.addTraverseListener(new TraverseListener() {
		
		public void keyTraversed(TraverseEvent e) {
			if (e.detail == SWT.TRAVERSE_MNEMONIC && e.doit) {
				e.detail = SWT.TRAVERSE_NONE;
				pattern.setFocus();
			}
		}
	});

	GridData gd = new GridData(GridData.FILL_HORIZONTAL);
	headerLabel.setLayoutData(gd);

	createViewMenu(header);
	header.setLayoutData(gd);
	return headerLabel;
}
 

public static void addTraverseListener(final Text textArea) {
    textArea.addTraverseListener(new TraverseListener() {
        @Override
        public void keyTraversed(final TraverseEvent e) {
            if (e.detail == SWT.TRAVERSE_TAB_NEXT || e.detail == SWT.TRAVERSE_TAB_PREVIOUS) {
                e.doit = true;
            }
        }
    });
}
 

public static void disableTabTraversal(Control c) {
	c.addTraverseListener(new TraverseListener() {
		public void keyTraversed(TraverseEvent e) {
			switch (e.detail) {
			case SWT.TRAVERSE_TAB_NEXT:
			case SWT.TRAVERSE_TAB_PREVIOUS: {
				e.doit = false;
			}
			}
		}
	});
}
 

public static void disableTabTraversal(Control c){
  c.addTraverseListener(new TraverseListener () {
    public void keyTraversed(TraverseEvent e) {
      switch (e.detail) {
        case SWT.TRAVERSE_TAB_NEXT:
        case SWT.TRAVERSE_TAB_PREVIOUS: {
          e.doit = false;
        }
      }
    }
  });
}
 

protected void createButtonsForButtonBar( Composite parent){
   Button ok = createButton(parent, IDialogConstants.OK_ID, "Close", true);
   // createButton(parent, IDialogConstants.CANCEL_ID,
   // IDialogConstants.CANCEL_LABEL, false);
   ok.addMouseListener(okListener);
   ok.addTraverseListener(new TraverseListener() {

      public void keyTraversed( TraverseEvent e){
         if (SWT.TRAVERSE_RETURN == e.detail) {
         }
      }
   });
}
 

protected void createButtonsForButtonBar( Composite parent){
   Button ok = createButton(parent, IDialogConstants.OK_ID, "Import Packet", true);
   createButton(parent, IDialogConstants.CANCEL_ID, IDialogConstants.CANCEL_LABEL, false);
   ok.addMouseListener(okListener);
   ok.addTraverseListener(new TraverseListener() {

      public void keyTraversed( TraverseEvent e){
         if (SWT.TRAVERSE_RETURN == e.detail) {
         }
      }
   });
}
 

public void addTraverseListener( TraverseListener tl ) {
  wText.addTraverseListener( tl );
}
 

/**
 * 运行任务的准备工作
 * @return UI状态
 */
@SuppressWarnings("rawtypes")
private Object aboutToStart(boolean enableCancelButton) {
	Map savedState = null;
	if (getShell() != null) {
		// Save focus control
		Control focusControl = getShell().getDisplay().getFocusControl();
		if (focusControl != null && focusControl.getShell() != getShell()) {
			focusControl = null;
		}
		boolean needsProgressMonitor = needsProgressMonitor();

		// 设置Shell的鼠标状态
		Display d = getShell().getDisplay();
		waitCursor = new Cursor(d, SWT.CURSOR_WAIT);
		setDisplayCursor(waitCursor);

		if (useCustomProgressMonitorPart) {
			cancelButton.removeSelectionListener(cancelListener);
			// 设置取消按钮的鼠标状态
			arrowCursor = new Cursor(d, SWT.CURSOR_ARROW);
			cancelButton.setCursor(arrowCursor);
		}

		// Deactivate shell
		savedState = saveUIState(useCustomProgressMonitorPart && needsProgressMonitor && enableCancelButton);
		if (focusControl != null) {
			savedState.put(FOCUS_CONTROL, focusControl);
		}
		// Activate cancel behavior.
		if (needsProgressMonitor) {
			if (enableCancelButton || useCustomProgressMonitorPart) {
				progressMonitorPart.attachToCancelComponent(cancelButton);
			}
			progressMonitorPart.setVisible(true);
		}

		if (timeWhenLastJobFinished == -1) {
			timeWhenLastJobFinished = 0;
			// 忽略键盘事件（ enter space）在最后一个任务完成之前
			getShell().addTraverseListener(new TraverseListener() {
				public void keyTraversed(TraverseEvent e) {
					if (e.detail == SWT.TRAVERSE_RETURN || (e.detail == SWT.TRAVERSE_MNEMONIC && e.keyCode == 32)) {
						if (timeWhenLastJobFinished != 0
								&& System.currentTimeMillis() - timeWhenLastJobFinished < RESTORE_ENTER_DELAY) {
							e.doit = false;
							return;
						}
						timeWhenLastJobFinished = 0;
					}
				}
			});
		}
	}
	return savedState;
}
 

/**
 * About to start a long running operation triggered through the wizard.
 * Shows the progress monitor and disables the wizard's buttons and
 * controls.
 * 
 * @param enableCancelButton
 *            <code>true</code> if the Cancel button should be enabled,
 *            and <code>false</code> if it should be disabled
 * @return the saved UI state
 */
private Object aboutToStart(boolean enableCancelButton) {
	Map savedState = null;
	if (getShell() != null) {
		// Save focus control
		Control focusControl = getShell().getDisplay().getFocusControl();
		if (focusControl != null && focusControl.getShell() != getShell()) {
			focusControl = null;
		}
		boolean needsProgressMonitor = wizard.needsProgressMonitor();
		
		// Set the busy cursor to all shells.
		Display d = getShell().getDisplay();
		waitCursor = new Cursor(d, SWT.CURSOR_WAIT);
		setDisplayCursor(waitCursor);
		
		if (useCustomProgressMonitorPart) {
			cancelButton.removeSelectionListener(cancelListener);
			// Set the arrow cursor to the cancel component.
			arrowCursor = new Cursor(d, SWT.CURSOR_ARROW);
			cancelButton.setCursor(arrowCursor);
		}
		
		// Deactivate shell
		savedState = saveUIState(useCustomProgressMonitorPart && needsProgressMonitor && enableCancelButton);
		if (focusControl != null) {
			savedState.put(FOCUS_CONTROL, focusControl);
		}
		// Activate cancel behavior.
		if (needsProgressMonitor) {
			if (enableCancelButton || useCustomProgressMonitorPart) {
				progressMonitorPart.attachToCancelComponent(cancelButton);
			}
			progressMonitorPart.setVisible(true);
		}
		
		// Install traverse listener once in order to implement 'Enter' and 'Space' key blocking
		if (timeWhenLastJobFinished == -1) {
			timeWhenLastJobFinished= 0;
			getShell().addTraverseListener(new TraverseListener() {
				public void keyTraversed(TraverseEvent e) {
					if (e.detail == SWT.TRAVERSE_RETURN || (e.detail == SWT.TRAVERSE_MNEMONIC && e.keyCode == 32)) {
						// We want to ignore the keystroke when we detect that it has been received within the
						// delay period after the last operation has finished.  This prevents the user from accidentally
						// hitting "Enter" or "Space", intending to cancel an operation, but having it processed exactly
						// when the operation finished, thus traversing the wizard.  If there is another operation still
						// running, the UI is locked anyway so we are not in this code.  This listener should fire only
						// after the UI state is restored (which by definition means all jobs are done.
						// See https://bugs.eclipse.org/bugs/show_bug.cgi?id=287887
						if (timeWhenLastJobFinished != 0 && System.currentTimeMillis() - timeWhenLastJobFinished < RESTORE_ENTER_DELAY) {
							e.doit= false;
							return;
						}
						timeWhenLastJobFinished= 0;
					}}
			});
		}
	}
	return savedState;
}
 

@Override
public void addTraverseListener(TraverseListener listener) {
	text.addTraverseListener(listener);
	dropdownList.addTraverseListener(listener);
}
 

public void addTraverseListener( TraverseListener tl ) {
  wText.addTraverseListener( tl );
}
 

/**
     * Hook an SWT listener on the canvas where the chart is drawn.
     * The purpose of this method is to allow some degree of customization.
     *
     * @param listener The SWT listener to attach to the canvas.
     */
    public void addSWTListener(EventListener listener) {
        if (listener instanceof ControlListener) {
            this.canvas.addControlListener((ControlListener) listener);
        }
        else if (listener instanceof DisposeListener) {
            this.canvas.addDisposeListener((DisposeListener) listener);
//      }
//      else if (listener instanceof DragDetectListener) {
//          this.canvas.addDragDetectListener((DragDetectListener) listener);
        }
        else if (listener instanceof FocusListener) {
            this.canvas.addFocusListener((FocusListener) listener);
        }
        else if (listener instanceof HelpListener) {
            this.canvas.addHelpListener((HelpListener) listener);
        }
        else if (listener instanceof KeyListener) {
            this.canvas.addKeyListener((KeyListener) listener);
//      }
//      else if (listener instanceof MenuDetectListener) {
//          this.canvas.addMenuDetectListener((MenuDetectListener) listener);
        }
        else if (listener instanceof MouseListener) {
            this.canvas.addMouseListener((MouseListener) listener);
        }
        else if (listener instanceof MouseMoveListener) {
            this.canvas.addMouseMoveListener((MouseMoveListener) listener);
        }
        else if (listener instanceof MouseTrackListener) {
            this.canvas.addMouseTrackListener((MouseTrackListener) listener);
//      } else if (listener instanceof MouseWheelListener) {
//          this.canvas.addMouseWheelListener((MouseWheelListener) listener);
        }
        else if (listener instanceof PaintListener) {
            this.canvas.addPaintListener((PaintListener) listener);
        }
        else if (listener instanceof TraverseListener) {
            this.canvas.addTraverseListener((TraverseListener) listener);
        }
    }
 

public void addTraverseListener( TraverseListener tl ) {
  wText.addTraverseListener( tl );
}
 

public void addTraverseListener( TraverseListener tl ) {
  wBox.addTraverseListener( tl );
}
 

public void addTraverseListener( TraverseListener tl ) {
  wText.addTraverseListener( tl );
}
 

/**
 * Hook an SWT listener on the canvas where the chart is drawn.
 * The purpose of this method is to allow some degree of customization.
 * @param listener The SWT listener to attach to the canvas.
 */
public void addSWTListener(SWTEventListener listener) {
    if (listener instanceof ControlListener) {
        this.canvas.addControlListener((ControlListener) listener);
    } 
    else if (listener instanceof DisposeListener) {
        this.canvas.addDisposeListener((DisposeListener) listener);
    } 
    else if (listener instanceof DragDetectListener) {
        this.canvas.addDragDetectListener((DragDetectListener) listener);
    } 
    else if (listener instanceof FocusListener) {
        this.canvas.addFocusListener((FocusListener) listener);
    } 
    else if (listener instanceof HelpListener) {
        this.canvas.addHelpListener((HelpListener) listener);
    } 
    else if (listener instanceof KeyListener) {
        this.canvas.addKeyListener((KeyListener) listener);
    } 
    else if (listener instanceof MenuDetectListener) {
        this.canvas.addMenuDetectListener((MenuDetectListener) listener);
    } 
    else if (listener instanceof MouseListener) {
        this.canvas.addMouseListener((MouseListener) listener);
    } 
    else if (listener instanceof MouseMoveListener) {
        this.canvas.addMouseMoveListener((MouseMoveListener) listener);
    } 
    else if (listener instanceof MouseTrackListener) {
        this.canvas.addMouseTrackListener((MouseTrackListener) listener);
    } 
    else if (listener instanceof MouseWheelListener) {
        this.canvas.addMouseWheelListener((MouseWheelListener) listener);
    } 
    else if (listener instanceof PaintListener) {
        this.canvas.addPaintListener((PaintListener) listener);
    } 
    else if (listener instanceof TraverseListener) {
        this.canvas.addTraverseListener((TraverseListener) listener);
    } 
}
 

public void addTraverseListener( TraverseListener tl ) {
  wText.addTraverseListener( tl );
}
 

public void addTraverseListener( TraverseListener tl ) {
  wText.addTraverseListener( tl );
}
 

public void addTraverseListener( TraverseListener tl ) {
  wCombo.addTraverseListener( tl );
}
 

private void editButton( TableItem row, int rownr, int colnr ) {
  beforeEdit = getItemText( row );
  fieldChanged = false;

  ColumnInfo colinfo = columns[colnr - 1];

  if ( colinfo.isReadOnly() ) {
    return;
  }

  if ( colinfo.getDisabledListener() != null ) {
    boolean disabled = colinfo.getDisabledListener().isFieldDisabled( rownr );
    if ( disabled ) {
      return;
    }
  }

  button = new Button( table, SWT.PUSH );
  props.setLook( button, Props.WIDGET_STYLE_TABLE );
  String buttonText = columns[colnr - 1].getButtonText();
  if ( buttonText != null ) {
    button.setText( buttonText );
  }
  button.setImage( GUIResource.getInstance().getImage( "ui/images/edittext.svg" ) );

  SelectionListener selAdpt = colinfo.getSelectionAdapter();
  if ( selAdpt != null ) {
    button.addSelectionListener( selAdpt );
  }

  buttonRownr = rownr;
  buttonColnr = colnr;

  // button.addTraverseListener(lsTraverse);
  buttonContent = row.getText( colnr );

  String tooltip = columns[colnr - 1].getToolTip();
  if ( tooltip != null ) {
    button.setToolTipText( tooltip );
  } else {
    button.setToolTipText( "" );
  }
  button.addTraverseListener( lsTraverse ); // hop to next field
  button.addTraverseListener( new TraverseListener() {
    @Override
    public void keyTraversed( TraverseEvent arg0 ) {
      closeActiveButton();
    }
  } );

  editor.horizontalAlignment = SWT.LEFT;
  editor.verticalAlignment = SWT.TOP;
  editor.grabHorizontal = false;
  editor.grabVertical = false;

  Point size = button.computeSize( SWT.DEFAULT, SWT.DEFAULT );
  editor.minimumWidth = size.x;
  editor.minimumHeight = size.y - 2;

  // setRowNums();
  editor.layout();

  // Open the text editor in the correct column of the selected row.
  editor.setEditor( button );

  button.setFocus();

  // if the button loses focus, destroy it...
  /*
   * button.addFocusListener(new FocusAdapter() { public void focusLost(FocusEvent e) { button.dispose(); } } );
   */
}
 

public void addTraverseListener( TraverseListener tl ) {
  wCombo.addTraverseListener( tl );
}