odk/examples/java/EmbedDocument/EmbeddedObject/EditorFrame.java

   1 /* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 import java.awt.*;
  21 import java.awt.event.*;
  22 import java.awt.image.*;
  23 import javax.swing.JTextArea;
  24 import javax.swing.JFrame;
  25 import java.io.*;
  26 import javax.imageio.ImageIO;
  27
  28 public class EditorFrame extends JFrame
  29 {
  30     private final OwnEmbeddedObject m_aEmbObj;
  31     private final JTextArea m_aTextArea;
  32     private BufferedImage m_aBufImage;
  33
  34     private final WindowListener m_aCloser = new WindowAdapter()
  35     {
  36         @Override
  37         public void windowClosing( WindowEvent e )
  38         {
  39             m_aBufImage = new BufferedImage( m_aTextArea.getWidth(), m_aTextArea.getHeight(), BufferedImage.TYPE_INT_RGB );
  40             Graphics2D aGr = m_aBufImage.createGraphics();
  41             m_aTextArea.paintAll( aGr );
  42             aGr.dispose();
  43
  44             hide();
  45             m_aEmbObj.CloseFrameRequest();
  46         }
  47     };
  48
  49     public EditorFrame( String sName, OwnEmbeddedObject aEmbObj, int nWidth, int nHeight )
  50     {
  51         super( sName );
  52         m_aEmbObj = aEmbObj;
  53         addWindowListener( m_aCloser );
  54         m_aTextArea = new JTextArea( "", nWidth, nHeight );
  55
  56         add( "Center", m_aTextArea );
  57         pack();
  58     }
  59
  60     public String getText()
  61     {
  62         return m_aTextArea.getText();
  63     }
  64
  65     public void setText( String aText )
  66     {
  67         m_aTextArea.setText( aText );
  68     }
  69
  70     public Dimension getAppSize()
  71     {
  72         return m_aTextArea.getSize();
  73     }
  74
  75     public void setAppSize( Dimension aSize )
  76     {
  77         Dimension aOwnSize = getSize();
  78         Dimension aAppSize = m_aTextArea.getSize();
  79         Dimension aToSet =
  80            new Dimension( (int)( aSize.getWidth() + aOwnSize.getWidth() - aAppSize.getWidth() ),
  81                           (int)(aSize.getHeight() + aOwnSize.getHeight() - aAppSize.getHeight() ) );
  82
  83         setSize( aToSet );
  84         validate();
  85     }
  86
  87     public byte[] getReplacementImage()
  88     {
  89         Dimension aDim = m_aTextArea.getSize();
  90         BufferedImage aBufImage = null;
  91
  92         if ( m_aBufImage != null )
  93             aBufImage = m_aBufImage;
  94         else
  95         {
  96             try
  97             {
  98                 int nWidth = (int)aDim.getWidth();
  99                 int nHeight = (int)aDim.getHeight();
 100                 aBufImage = new BufferedImage( nWidth, nHeight, BufferedImage.TYPE_INT_RGB );
 101                 Graphics2D aGr = aBufImage.createGraphics();
 102                 aGr.setBackground( Color.WHITE );
 103                 aGr.clearRect( 0, 0, nWidth, nHeight );
 104                 aGr.dispose();
 105             }
 106             catch ( java.lang.Exception e )
 107             {}
 108         }
 109
 110         if ( aBufImage != null )
 111         {
 112             try
 113             {
 114                 File aTmpFile = File.createTempFile( "temp", ".png" );
 115                 ImageIO.write( aBufImage, "png", aTmpFile );
 116
 117                 int nLen = (int)aTmpFile.length();
 118                 byte[] aResult = new byte[nLen];
 119                 FileInputStream aTmpStream = new FileInputStream( aTmpFile );
 120                 aTmpStream.read( aResult );
 121                 aTmpStream.close();
 122                 aTmpFile.delete();
 123
 124                 return aResult;
 125             }
 126             catch ( java.lang.Exception e )
 127             {}
 128         }
 129
 130         return new byte[0];
 131     }
 132 }
 133
 134 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */