Instantiation of a Dialog

OpenOffice.org Developer's Guide

Graphical User Interfaces

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• Exception Handling
• Dialogs and Controls
• Dialog Creation

• Instantiation of a Dialog
• Setting Dialog Properties
• Adding Controls to a Dialog
• Displaying Dialogs

• Dialog Handling

• Events
• Dialog Controls

• Common Properties
• Font-specific Properties
• Other Common Properties
• Property Propagation Between Model and Control
• Common Workflow to add Controls
• The Example Listings
• Label Field
• Command Button
• Image Control
• Check Box
• Radio Button
• Scroll Bar
• List Box
• Combo Box
• Progress Bar
• Horizontal/Vertical Line Control
• Group Box
• Text Field
• Text Field Extensions
• Formatted Field
• Numeric Field
• Currency Field
• Date Field
• Time Field
• Pattern Field
• Roadmap Control
• File Control
• File Picker
• Message Box

• The Toolkit Service
• Creating Menus

• Summarizing Example to Create a UNO Dialog

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The first step to create a dialog is to instantiate the dialog and its corresponding model . As can be seen in the following code example, the dialog as well as its model are created by the global MultiComponentFactory. The model is assigned to the dialog using setModel(). The dialog model is a com.sun.star.container.XNameContainer that keeps all control models and accesses them by their name. Similarly the dialog implements the interface com.sun.star.awt.XControlContainer that accesses the controls via the method getControl(). In a later step, each control model must be added to the Name-Container of the dialog model, which is why these object variables are defined with a public scope in the code example. Alternatively you can also retrieve the dialog model using the method getModel() at the dialog interface com.sun.star.awt.XControl.

  public XNameContainer m_xDlgModelNameContainer = null;
  public XControlContainer m_xDlgContainer = null;
  ...
  
  private void createDialog(XMultiComponentFactory _xMCF) {
  try {
      Object oDialogModel = _xMCF.createInstanceWithContext("com.sun.star.awt.UnoControlDialogModel", m_xContext);
  
      // The XMultiServiceFactory of the dialogmodel is needed to instantiate the controls...
      m_xMSFDialogModel = (XMultiServiceFactory) UnoRuntime.queryInterface(XMultiServiceFactory.class, oDialogModel);
  
      // The named container is used to insert the created controls into...
      m_xDlgModelNameContainer = (XNameContainer) UnoRuntime.queryInterface(XNameContainer.class, oDialogModel);
  
      // create the dialog...
      Object oUnoDialog = _xMCF.createInstanceWithContext("com.sun.star.awt.UnoControlDialog", m_xContext);
      m_xDialogControl = (XControl) UnoRuntime.queryInterface(XControl.class, oUnoDialog);
      
      // The scope of the control container is public...
      m_xDlgContainer = (XControlContainer) UnoRuntime.queryInterface(XControlContainer.class, oUnoDialog);
      
      m_xTopWindow = (XTopWindow) UnoRuntime.queryInterface(XTopWindow.class, m_xDlgContainer); 
      
      // link the dialog and its model...
      XControlModel xControlModel = (XControlModel) UnoRuntime.queryInterface(XControlModel.class, oDialogModel);
      m_xDialogControl.setModel(xControlModel);
  } catch (com.sun.star.uno.Exception exception) {
      exception.printStackTrace(System.out);
  }
 }

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