How to use

getLocation

method

in

org.eclipse.swt.widgets.Composite

public Point getRealPosition( Composite canvas, int x, int y ) {
 Point p = new Point( 0, 0 );
 Composite follow = canvas;
 while ( follow != null ) {
  Point xy = new Point( follow.getLocation().x, follow.getLocation().y );
  p.x += xy.x;
  p.y += xy.y;
  follow = follow.getParent();
 }
 p.x = x - p.x - 8;
 p.y = y - p.y - 48;
 return screen2real( p.x, p.y );
}

public Point getRealPosition( Composite canvas, int x, int y ) {
 Point p = new Point( 0, 0 );
 Composite follow = canvas;
 while ( follow != null ) {
  org.eclipse.swt.graphics.Point loc = follow.getLocation();
  Point xy = new Point( loc.x, loc.y );
  p.x += xy.x;
  p.y += xy.y;
  follow = follow.getParent();
 }
 int offsetX = -16;
 int offsetY = -64;
 if ( Const.isOSX() ) {
  offsetX = -2;
  offsetY = -24;
 }
 p.x = x - p.x + offsetX;
 p.y = y - p.y + offsetY;
 return screen2real( p.x, p.y );
}

 @Override
 public void widgetSelected( SelectionEvent e ) {
  if ( e.detail == SWT.DROP_DOWN ) {
   Menu menu = new Menu( shell, SWT.POP_UP );
   MenuItem item1 = new MenuItem( menu, SWT.PUSH );
   item1.setText( BaseMessages.getString( PKG, "Spoon.Menu.StopTranformation" ) );
   item1.addSelectionListener( new SelectionAdapter() {
    @Override
    public void widgetSelected( SelectionEvent e1 ) {
     stopTransformation();
    }
   } );
   MenuItem item2 = new MenuItem( menu, SWT.PUSH );
   item2.setText( BaseMessages.getString( PKG, "Spoon.Menu.SafeStopTranformation" ) );
   item2.addSelectionListener( new SelectionAdapter() {
    @Override
    public void widgetSelected( SelectionEvent e2 ) {
     safeStop();
    }
   } );
   menu.setLocation( shell.getDisplay().map( mainComposite.getParent(), null, mainComposite.getLocation() ) );
   menu.setVisible( true );
  } else {
   stopTransformation();
  }
 }
} );

 @Override
 public void widgetSelected( SelectionEvent e ) {
  if ( e.detail == SWT.DROP_DOWN ) {
   Menu menu = new Menu( shell, SWT.POP_UP );
   MenuItem item1 = new MenuItem( menu, SWT.PUSH );
   item1.setText( BaseMessages.getString( PKG, "Spoon.Run.Run" ) );
   item1.setAccelerator( SWT.F9 );
   item1.addSelectionListener( new SelectionAdapter() {
    @Override
    public void widgetSelected( SelectionEvent e1 ) {
     runTransformation();
    }
   } );
   MenuItem item2 = new MenuItem( menu, SWT.PUSH );
   item2.setText( BaseMessages.getString( PKG, "Spoon.Run.RunOptions" ) );
   item2.setAccelerator( SWT.F8 );
   item2.addSelectionListener( new SelectionAdapter() {
    @Override
    public void widgetSelected( SelectionEvent e2 ) {
     runOptionsTransformation();
    }
   } );
   menu.setLocation( shell.getDisplay().map( mainComposite.getParent(), null, mainComposite.getLocation() ) );
   menu.setVisible( true );
  } else {
   runTransformation();
  }
 }
} );

 @Override
 public void widgetSelected( SelectionEvent e ) {
  if ( e.detail == SWT.DROP_DOWN ) {
   Menu menu = new Menu( shell, SWT.POP_UP );
   MenuItem item1 = new MenuItem( menu, SWT.PUSH );
   item1.setText( BaseMessages.getString( PKG, "Spoon.Run.Run" ) );
   item1.setAccelerator( SWT.F9 );
   item1.addSelectionListener( new SelectionAdapter() {
    @Override
    public void widgetSelected( SelectionEvent e1 ) {
     runJob();
    }
   } );
   MenuItem item2 = new MenuItem( menu, SWT.PUSH );
   item2.setText( BaseMessages.getString( PKG, "Spoon.Run.RunOptions" ) );
   item2.setAccelerator( SWT.F8 );
   item2.addSelectionListener( new SelectionAdapter() {
    @Override
    public void widgetSelected( SelectionEvent e2 ) {
     runOptionsJob();
    }
   } );
   menu.setLocation( shell.getDisplay().map( mainComposite.getParent(), null, mainComposite.getLocation() ) );
   menu.setVisible( true );
  } else {
   runJob();
  }
 }
} );

public Point getLocation() {
  return container.getLocation();
}

/**
 * Gets the absolute location.
 *
 * @param control the control
 * @param x the x
 * @param y the y
 * @return the absolute location
 */
private Point getAbsoluteLocation(Control control, int x, int y) {
 Point point = new Point(x, y);
 Composite composite = control.getParent();
 while (composite != null) {
  point.x += composite.getLocation().x;
  point.y += composite.getLocation().y;
  composite = composite.getParent();
 }
 return point;
}

public void setLocation(Point location) {
  Rectangle trim = fShell.computeTrim(0, 0, 0, 0);
  Point textLocation = fComposite.getLocation();
  location.x += trim.x - textLocation.x;
  location.y += trim.y - textLocation.y;
  fShell.setLocation(location);
}

public void setLocation(Point location) {
  Rectangle trim = fShell.computeTrim(0, 0, 0, 0);
  Point textLocation = fComposite.getLocation();
  location.x += trim.x - textLocation.x;
  location.y += trim.y - textLocation.y;
  fShell.setLocation(location);
}

  private void invokeMenu(Composite widget) {
    Rectangle b = widget.getBounds();
    Point p = widget.getLocation();
    p.x += b.width + 3;
    bMouse = false;
    redraw();
    clickMenu(p.x, p.y);
  }
});

protected Point getMinSize() {
  Point size = getButtonComposite().getSize();
  int bottomEnd = getButtonComposite().getLocation().y + size.y;
  int minWidth = size.x + 2*scaler.convertXToCurrent(HORIZONTAL_OFFSET) + 2*getShell().getBorderWidth();
  int minHeight = bottomEnd + scaler.convertYToCurrent(SHELL_DEFAULT_MIN_HEIGHT);
  return new Point(minWidth,minHeight);
}

protected Point getMinSize() {
  Point size = getButtonComposite().getSize();
  int bottomEnd = getButtonComposite().getLocation().y + size.y;
  int minWidth = size.x + 2*scaler.convertXToCurrent(HORIZONTAL_OFFSET) + 2*getShell().getBorderWidth();
  int minHeight = bottomEnd + scaler.convertYToCurrent(SHELL_DEFAULT_MIN_HEIGHT);
  return new Point(minWidth,minHeight);
}

/** Opens the shell on this parent shell. */
public Shell openOn(Shell parent) {
  Preconditions.checkNotNull(parent);
  Shell shell = new Shell(parent, style);
  if (location == null) {
    Point parentPos = shell.getParent().getLocation();
    int SHELL_MARGIN = SwtMisc.systemFontHeight();
    parentPos.x += SHELL_MARGIN;
    parentPos.y += SHELL_MARGIN;
    location = Maps.immutableEntry(Corner.TOP_LEFT, parentPos);
  }
  setupShell(shell);
  return shell;
}

Point loc = btnCntrl.getLocation();
Rectangle rect = btnCntrl.getBounds();
Point loc = btnCntrl2.getLocation();
Rectangle rect = btnCntrl2.getBounds();

protected Point getMinSize() {
  int minWidth = scaler.convertXToCurrent(23) + detailButton.getSize().x + scaler.convertXToCurrent(HORIZONTAL_OFFSET);
  minWidth += copyButton.getSize().x + scaler.convertXToCurrent(HORIZONTAL_OFFSET);
  minWidth += getButtonComposite().getSize().x + scaler.convertXToCurrent(HORIZONTAL_OFFSET);
  int okBottomEnd = getButtonComposite().getLocation().y + getButtonComposite().getSize().y;
  int minHeight = okBottomEnd + scaler.convertYToCurrent(SHELL_DEFAULT_MIN_HEIGHT);
  if(detailOpen) {
    minHeight += scaler.convertYToCurrent(100);
  }
  return new Point(minWidth,minHeight);
}

protected Point getMinSize() {
  int minWidth = scaler.convertXToCurrent(23) + detailButton.getSize().x + scaler.convertXToCurrent(HORIZONTAL_OFFSET);
  minWidth += copyButton.getSize().x + scaler.convertXToCurrent(HORIZONTAL_OFFSET);
  minWidth += getButtonComposite().getSize().x + scaler.convertXToCurrent(HORIZONTAL_OFFSET);
  int okBottomEnd = getButtonComposite().getLocation().y + getButtonComposite().getSize().y;
  int minHeight = okBottomEnd + scaler.convertYToCurrent(SHELL_DEFAULT_MIN_HEIGHT);
  if(detailOpen) {
    minHeight += scaler.convertYToCurrent(100);
  }
  return new Point(minWidth,minHeight);
}

private void adjustHeight(StyledText text) {
  int lineCount = text.getLineCount();
  int lineHeight = text.getLineHeight();
  int startPos = text.getLocation().y;
  Composite c = text.getParent();
  while (c != null) {
    startPos += c.getLocation().y;
    c = c.getParent();
  }
  // the text is not positioned yet, we assume that it will appear
  // on the bottom of the dialog
  startPos += text.getShell().getBounds().height;
  int screenHeight = text.getShell().getMonitor().getBounds().height;
  int availableScreenForText = screenHeight - startPos;
  if (availableScreenForText <= MINIMUM_HEIGHT) {
    // should not happen. But in that case nothing can improve user
    // experience.
    return;
  }
  int desiredHeight = lineCount * lineHeight;
  if (desiredHeight > availableScreenForText * 0.75) {
    ((GridData) text.getLayoutData()).heightHint = (int) (availableScreenForText * 0.75);
  }
}

private void showStandaloneViewMenu(ExecutionEvent event, MPart model, MMenu menuModel,
    Composite partContainer) {
  Shell shell = partContainer.getShell();
  Menu menu = (Menu) menuModel.getWidget();
  if (menu == null) {
    IPresentationEngine engine = (IPresentationEngine) HandlerUtil.getVariable(event,
        IPresentationEngine.class.getName());
    menu = (Menu) engine.createGui(menuModel, shell, model.getContext());
    if (menu != null) {
      final Menu tmpMenu = menu;
      partContainer.addDisposeListener(e -> tmpMenu.dispose());
    }
  }
  Display display = menu.getDisplay();
  Point location = display.map(partContainer, null, partContainer.getLocation());
  Point size = partContainer.getSize();
  menu.setLocation(location.x + size.x, location.y);
  menu.setVisible(true);
  while (!menu.isDisposed() && menu.isVisible()) {
    if (!display.readAndDispatch())
      display.sleep();
  }
  if (!(menu.getData() instanceof MenuManager)) {
    menu.dispose();
  }
}