How to use

setSize

method

in

org.eclipse.swt.widgets.Composite

mainPanel.setSize( mainPanel.computeSize( SWT.DEFAULT, SWT.DEFAULT ) );
scrollpane.setMinSize( mainPanel.computeSize( SWT.DEFAULT, SWT.DEFAULT ) );
BaseStepDialog.setSize( shell, 250, 400, false );

  @PostConstruct
  void createWidget(Composite parent, MToolControl tc) {
    Composite comp = new Composite(parent, SWT.NONE) {
      @Override
      public Point computeSize(int wHint, int hHint, boolean flushCache) {
        return new Point(0, 0);
      }
    };
    comp.setSize(0, 0);
  }
}

  @Override
  public void controlResized(ControlEvent e) {
    settingsContainer.setSize(settingsContainer.computeSize(SWT.DEFAULT, SWT.DEFAULT));
  }
});

  @Override
  public void controlResized(ControlEvent e) {
    settingsContainer.setSize(settingsContainer.computeSize(SWT.DEFAULT, SWT.DEFAULT));
  }
});

void relayout() {
  Point size = getSize();
  int height = layoutItems();
  if ((style & SWT.VERTICAL) != 0) {
    Rectangle trim = computeTrim (0, 0, height, 0);
    if (height != size.x) super.setSize(trim.width, size.y);
  } else {
    Rectangle trim = computeTrim (0, 0, 0, height);
    if (height != size.y) super.setSize(size.x, trim.height);		
  }
}
/**

void relayout() {
  Point size = getSize();
  int height = layoutItems();
  if ((style & SWT.VERTICAL) != 0) {
    Rectangle trim = computeTrim (0, 0, height, 0);
    if (height != size.x) super.setSize(trim.width, size.y);
  } else {
    Rectangle trim = computeTrim (0, 0, 0, height);
    if (height != size.y) super.setSize(size.x, trim.height);
  }
}
/**

private void setHostSize() {
  if (hostPane == null || hostPane.isDisposed())
    return;
  int xSize = 600;
  String xSizeStr = toolControl.getPersistedState().get(STATE_XSIZE);
  if (xSizeStr != null)
    xSize = Integer.parseInt(xSizeStr);
  int ySize = 400;
  String ySizeStr = toolControl.getPersistedState().get(STATE_YSIZE);
  if (ySizeStr != null)
    ySize = Integer.parseInt(ySizeStr);
  hostPane.setSize(xSize, ySize);
}

/**
 * Fits the width of the main composite to the same width scrolled composite was given.
 */
private void fitSizeOfScrolledContent() {
  Point p = scrollComposite.getSize();
  main.setSize(main.computeSize(p.x, SWT.DEFAULT));
}

void relayout() {
  Point size = getSize();
  int height = layoutItems();
  if ((style & SWT.VERTICAL) != 0) {
    Rectangle trim = computeTrim (0, 0, height, 0);
    if (height != size.x) super.setSize(trim.width, size.y);
  } else {
    Rectangle trim = computeTrim (0, 0, 0, height);
    if (height != size.y) super.setSize(size.x, trim.height);
  }
}
/**

void relayout() {
  Point size = getSize();
  int height = layoutItems();
  if ((style & SWT.VERTICAL) != 0) {
    Rectangle trim = computeTrim (0, 0, height, 0);
    if (height != size.x) super.setSize(trim.width, size.y);
  } else {
    Rectangle trim = computeTrim (0, 0, 0, height);
    if (height != size.y) super.setSize(size.x, trim.height);
  }
}
/**

ScrolledComposite sc = new ScrolledComposite(parent, SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER);
 Composite composite = new Composite(sc, SWT.NONE);
 sc.setContent(composite);
 Label lblRelation = new Label(composite, SWT.NONE);
 lblRelation.setBounds(10, 13, 74, 15);
 lblRelation.setText("Label name:");
 composite.setSize(composite.computeSize(SWT.DEFAULT, SWT.DEFAULT));

void relayout() {
  Point size = getSize();
  int height = layoutItems();
  if ((style & SWT.VERTICAL) != 0) {
    Rectangle trim = computeTrim (0, 0, height, 0);
    if (height != size.x) super.setSize(trim.width, size.y);
  } else {
    Rectangle trim = computeTrim (0, 0, 0, height);
    if (height != size.y) super.setSize(size.x, trim.height);
  }
}

 ScrolledComposite sc = new ScrolledComposite(shell, SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL);
sc.setBounds(0, 0, 200, 200);

Composite content = new Composite(sc, SWT.NONE);
content.setSize(300, 300);
sc.setContent(content);

Button button = new Button(content, SWT.PUSH);
button.setText("Button");
button.setBounds(50, 50, 100, 50);

/**
 * Sets the error message.
 *
 * @param msg the new error message
 */
protected void setErrorMessage(String msg) {
 errorMessageUI.setText(msg);
 Composite shell = errorMessageUI.getParent();
 while (!(shell instanceof Shell))
  shell = shell.getParent();
 shell.setSize(shell.computeSize(-1, -1));
}

public void createControl(Composite parent) {
  PlatformUI.getWorkbench().getHelpSystem().setHelp(parent, IJ2EEUIContextIds.IMPORT_CLASS_WIZARD_P1);
  initializeDialogUnits(parent);
  Composite aComposite = new Composite(parent, SWT.NULL);
  aComposite.setLayout(new GridLayout());
  aComposite.setLayoutData(new GridData(GridData.VERTICAL_ALIGN_FILL | GridData.HORIZONTAL_ALIGN_FILL));
  aComposite.setSize(aComposite.computeSize(SWT.DEFAULT, SWT.DEFAULT));
  aComposite.setFont(parent.getFont());
  createImportTypeGroup(aComposite);
  setControl(aComposite);
}

@Override
public void setSize(int width, int height, boolean fullscreen) {
 int rawWidth = ctx.scale.scaledCeil(width), rawHeight = ctx.scale.scaledCeil(height);
 platform.comp.setSize(rawWidth, rawHeight);
 platform.shell.setFullScreen(fullscreen);
 platform.shell.pack();
}

@Override
public void setInput(CustomInformationControl control, Object input) {
 AnnotationEditingControl annotationEditControl = (AnnotationEditingControl) control
     .getControl();
 annotationEditControl.displayFeatureStructure((FeatureStructure) input);
 control.getParent().setSize(annotationEditControl.getSize());
}

@Override
public void setSize(int width, int height, boolean fullscreen) {
 int rawWidth = ctx.scale.scaledCeil(width), rawHeight = ctx.scale.scaledCeil(height);
 platform.comp.setSize(rawWidth, rawHeight);
 platform.shell.setFullScreen(fullscreen);
 platform.shell.pack();
}

@Override public void setSize (int width, int height, boolean fullscreen) {
 plat.composite().setSize(width, height);
 plat.shell().setFullScreen(fullscreen);
 plat.shell().pack();
}

@Override public void setSize (int width, int height, boolean fullscreen) {
 plat.composite().setSize(width, height);
 plat.shell().setFullScreen(fullscreen);
 plat.shell().pack();
}