odk/examples/DevelopersGuide/GUI/MessageBox.java

   1 /* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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  35
  36 import com.sun.star.awt.MessageBoxType;
  37 import com.sun.star.awt.XMessageBox;
  38 import com.sun.star.awt.XMessageBoxFactory;
  39 import com.sun.star.awt.XVclWindowPeer;
  40 import com.sun.star.awt.XWindow;
  41 import com.sun.star.awt.XWindowPeer;
  42 import com.sun.star.frame.XFrame;
  43 import com.sun.star.frame.XModel;
  44 import com.sun.star.util.XCloseable;
  45 import com.sun.star.frame.XFramesSupplier;
  46 import com.sun.star.lang.IllegalArgumentException;
  47 import com.sun.star.lang.XComponent;
  48 import com.sun.star.lang.XMultiComponentFactory;
  49 import com.sun.star.uno.AnyConverter;
  50 import com.sun.star.uno.UnoRuntime;
  51 import com.sun.star.uno.XComponentContext;
  52
  53
  54
  55 public class MessageBox  {
  56
  57     protected XComponentContext m_xContext = null;
  58     protected com.sun.star.lang.XMultiComponentFactory m_xMCF;
  59
  60     /** Creates a new instance of MessageBox */
  61     public MessageBox(XComponentContext _xContext, XMultiComponentFactory _xMCF){
  62         m_xContext = _xContext;
  63         m_xMCF = _xMCF;
  64     }
  65
  66     public static void main(String args[]) {
  67         XComponent xComp = null;
  68         try {
  69             XComponentContext xContext = com.sun.star.comp.helper.Bootstrap.bootstrap();
  70             if(xContext != null )
  71                 System.out.println("Connected to a running office ...");
  72             XMultiComponentFactory xMCF = xContext.getServiceManager();
  73
  74             MessageBox oMessageBox = new MessageBox(xContext, xMCF);
  75
  76             //load default text document to get an active frame
  77             xComp = oMessageBox.createDefaultTextDocument();
  78
  79             XWindowPeer xWindowPeer = oMessageBox.getWindowPeerOfFrame(xComp);
  80             if (xWindowPeer != null) {
  81                 XVclWindowPeer xVclWindowPeer = UnoRuntime.queryInterface(XVclWindowPeer.class, xWindowPeer);
  82                 boolean bisHighContrast = oMessageBox.isHighContrastModeActivated(xVclWindowPeer);
  83                 oMessageBox.showErrorMessageBox(xWindowPeer, "My Sampletitle", "HighContrastMode is enabled: " + bisHighContrast);
  84             } else{
  85                 System.out.println("Could not retrieve current frame");
  86             }
  87
  88         } catch( Exception e ) {
  89             System.err.println( e + e.getMessage());
  90             e.printStackTrace();
  91         } finally {
  92             if (xComp != null) {
  93                 try {
  94                     XCloseable xClose = UnoRuntime.queryInterface(XCloseable.class, xComp);
  95                     if (xClose != null) {
  96                         xClose.close(false);
  97                     } else {
  98                         xComp.dispose();
  99                     }
 100                 } catch (com.sun.star.util.CloseVetoException e) {
 101                     System.err.println( e + e.getMessage());
 102                     e.printStackTrace();
 103                 }
 104             }
 105         }
 106
 107         System.exit( 0 );
 108     }
 109
 110     // helper method to get the window peer of a document or if no
 111     // document is specified it tries to get the active frame
 112     // which is potentially dangerous
 113     public XWindowPeer getWindowPeerOfFrame(XComponent xComp) {
 114         try {
 115             XFrame xFrame = null;
 116
 117             if (xComp != null) {
 118                 XModel xModel = UnoRuntime.queryInterface(XModel.class, xComp);
 119                 xFrame = xModel.getCurrentController().getFrame();
 120
 121             } else {
 122                 // Note: This method is potentially dangerous and should only be used for debugging
 123                 // purposes as it relies on the platform dependent window handler...
 124                 Object oDesktop = m_xMCF.createInstanceWithContext("com.sun.star.frame.Desktop", m_xContext);
 125                 XFramesSupplier xFramesSupplier = UnoRuntime.queryInterface(XFramesSupplier.class, oDesktop);
 126                 xFrame = xFramesSupplier.getActiveFrame();
 127             }
 128
 129             if (xFrame != null){
 130                 XWindow xWindow = xFrame.getContainerWindow();
 131                 if (xWindow != null){
 132                     XWindowPeer xWindowPeer =  UnoRuntime.queryInterface(XWindowPeer.class, xWindow);
 133                     return xWindowPeer;
 134                 }
 135             }
 136         } catch (com.sun.star.uno.Exception ex) {
 137             ex.printStackTrace();
 138         }
 139         return null;
 140     }
 141
 142     XComponent createDefaultTextDocument() {
 143
 144         XComponent xComp =  null;
 145         try {
 146             Object oDesktop = m_xMCF.createInstanceWithContext(
 147                                                "com.sun.star.frame.Desktop", m_xContext);
 148
 149             // get the component loader from the desktop to create a new
 150             // text document
 151             com.sun.star.frame.XComponentLoader xCLoader =UnoRuntime.queryInterface(com.sun.star.frame.XComponentLoader.class,oDesktop);
 152
 153             com.sun.star.beans.PropertyValue[] args = new com.sun.star.beans.PropertyValue [1];
 154             args[0] = new com.sun.star.beans.PropertyValue();
 155             args[0].Name = "Hidden";
 156             args[0].Value = Boolean.TRUE;
 157             String strDoc = "private:factory/swriter";
 158
 159             xComp = xCLoader.loadComponentFromURL(strDoc, "_blank", 0, args);
 160
 161         } catch(com.sun.star.uno.Exception ex) {
 162             ex.printStackTrace();
 163         }
 164         return xComp;
 165     }
 166
 167     /** shows an error messagebox
 168      *  @param _xParentWindowPeer the windowpeer of the parent window
 169      *  @param _sTitle the title of the messagebox
 170      *  @param _sMessage the message of the messagebox
 171      */
 172     public void showErrorMessageBox(XWindowPeer _xParentWindowPeer, String _sTitle, String _sMessage) {
 173         XComponent xComponent = null;
 174         try {
 175             Object oToolkit = m_xMCF.createInstanceWithContext("com.sun.star.awt.Toolkit", m_xContext);
 176             XMessageBoxFactory xMessageBoxFactory = UnoRuntime.queryInterface(XMessageBoxFactory.class, oToolkit);
 177             XMessageBox xMessageBox = xMessageBoxFactory.createMessageBox(_xParentWindowPeer, MessageBoxType.ERRORBOX, com.sun.star.awt.MessageBoxButtons.BUTTONS_OK, _sTitle, _sMessage);
 178             xComponent = UnoRuntime.queryInterface(XComponent.class, xMessageBox);
 179             if (xMessageBox != null){
 180                 xMessageBox.execute();
 181             }
 182         } catch (com.sun.star.uno.Exception ex) {
 183             ex.printStackTrace(System.err);
 184         } finally{
 185             //make sure always to dispose the component and free the memory!
 186             if (xComponent != null){
 187                 xComponent.dispose();
 188             }
 189         }
 190     }
 191
 192
 193     /** @param _xVclWindowPeer the windowpeer of a dialog control or the dialog itself
 194      *  @return true if HighContrastMode is activated or false if HighContrastMode is deactivated
 195      */
 196     public boolean isHighContrastModeActivated(XVclWindowPeer _xVclWindowPeer) {
 197         boolean bIsActivated = false;
 198
 199         try {
 200             if (_xVclWindowPeer != null){
 201                 int nUIColor = AnyConverter.toInt(_xVclWindowPeer.getProperty("DisplayBackgroundColor"));
 202                 int nRed = getRedColorShare(nUIColor);
 203                 int nGreen = getGreenColorShare(nUIColor);
 204                 int nBlue = getBlueColorShare(nUIColor);
 205                 int nLuminance = (( nBlue*28 + nGreen*151 + nRed*77 ) / 256 );
 206                 boolean bisactivated = (nLuminance <= 25);
 207                 return bisactivated;
 208             } else{
 209                 return false;
 210             }
 211         } catch (IllegalArgumentException e) {
 212             e.printStackTrace(System.err);
 213         }
 214         return bIsActivated;
 215     }
 216
 217     public static int getRedColorShare(int _nColor) {
 218         int nRed = _nColor/65536;
 219         return nRed;
 220     }
 221
 222     public static int getGreenColorShare(int _nColor) {
 223         int nRedModulo = _nColor % 65536;
 224         int nGreen = nRedModulo / 256;
 225         return nGreen;
 226     }
 227
 228     public static int getBlueColorShare(int _nColor) {
 229         int nRedModulo = _nColor % 65536;
 230         int nGreenModulo = (nRedModulo % 256);
 231         int nBlue = nGreenModulo;
 232         return nBlue;
 233     }
 234
 235 }
 236
 237 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */