odk/examples/DevelopersGuide/Forms/ValueBinding.java

   1 /*
   2  * This file is part of the LibreOffice project.
   3  *
   4  * This Source Code Form is subject to the terms of the Mozilla Public
   5  * License, v. 2.0. If a copy of the MPL was not distributed with this
   6  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   7  *
   8  * This file incorporates work covered by the following license notice:
   9  *
  10  *   Licensed to the Apache Software Foundation (ASF) under one or more
  11  *   contributor license agreements. See the NOTICE file distributed
  12  *   with this work for additional information regarding copyright
  13  *   ownership. The ASF licenses this file to you under the Apache
  14  *   License, Version 2.0 (the "License"); you may not use this file
  15  *   except in compliance with the License. You may obtain a copy of
  16  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  17  */
  18
  19 import com.sun.star.uno.UnoRuntime;
  20
  21 import com.sun.star.beans.XPropertySet;
  22 import com.sun.star.text.XTextDocument;
  23 import com.sun.star.text.XText;
  24 import com.sun.star.text.XTextTable;
  25 import com.sun.star.text.XTextCursor;
  26 import com.sun.star.form.binding.XValueBinding;
  27 import com.sun.star.form.binding.XBindableValue;
  28
  29 public class ValueBinding extends DocumentBasedExample
  30 {
  31     /** Creates a new instance of ValueBinding */
  32     public ValueBinding()
  33     {
  34         super( DocumentType.WRITER );
  35     }
  36
  37     /* ------------------------------------------------------------------ */
  38     @Override
  39     protected void prepareDocument() throws com.sun.star.uno.Exception, java.lang.Exception
  40     {
  41         super.prepareDocument();
  42
  43         // insert a table with exactly one cell. The content of this table will be synced with
  44         // the content of a form control
  45         XTextDocument textDoc = UnoRuntime.queryInterface( XTextDocument.class,  m_document.getDocument() );
  46         XText documentText = textDoc.getText();
  47         XTextCursor textCursor = documentText.createTextCursor();
  48         documentText.insertString( textCursor, "Below, there's a table cell, and a text field. ", false );
  49         documentText.insertString( textCursor, "Both are linked via an external value binding.\n", false );
  50         documentText.insertString( textCursor, "That means that anything you insert into the table cell is reflected in the ", false );
  51         documentText.insertString( textCursor, "text field, and vice versa.\n", false );
  52
  53         XTextTable table = UnoRuntime.queryInterface( XTextTable.class,
  54             m_document.createInstance( "com.sun.star.text.TextTable" )
  55         );
  56         table.initialize( 1, 1 );
  57         documentText.insertTextContent( textCursor, table, false );
  58
  59         // insert our sample control
  60         XPropertySet textControl = m_formLayer.insertControlLine( "DatabaseTextField", "enter some text", "", 30 );
  61
  62         // create a value binding for the first cell of the table
  63         XValueBinding cellBinding = new TableCellTextBinding( table.getCellByName( "A1" ) );
  64         // and bind it to the control
  65         XBindableValue bindable = UnoRuntime.queryInterface(
  66             XBindableValue.class, textControl
  67         );
  68         bindable.setValueBinding( cellBinding );
  69     }
  70
  71     /* ------------------------------------------------------------------ */
  72     /** class entry point
  73     */
  74     public static void main(String argv[]) throws java.lang.Exception
  75     {
  76         ValueBinding aSample = new ValueBinding();
  77         aSample.run( argv );
  78     }
  79  }