public void showContainerSizePanel() { CaptionPanel bodySize = new CaptionPanel(constants.containerSizeTitle()); bodySize.setWidth("185px"); final VerticalPanel content = new VerticalPanel(); containerSizeListBox = new CustomListBox(); content.add(containerSizeListBox); bodySize.setContentWidget(content); HorizontalPanel setSizePanel = new HorizontalPanel(); setSizeDisclosurePanel = new DisclosurePanel(constants.sizeInPixel()); setSizeDisclosurePanel.setAnimationEnabled(true); setSizeDisclosurePanel.setOpen(true); setSizeDisclosurePanel.setVisible(false); setSizeDisclosurePanel.add(setSizePanel); customSizeTextBox = new TextBox(); customSizeTextBox.setWidth("50px"); setSizePanel.add(customSizeTextBox); validCustomSizeButton = new Button("OK"); setSizePanel.add(validCustomSizeButton); content.add(setSizeDisclosurePanel); builderContent.add(bodySize); }