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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 */
MessageBox(XComponentContext _xContext, XMultiComponentFactory _xMCF)61     public MessageBox(XComponentContext _xContext, XMultiComponentFactory _xMCF){
62         m_xContext = _xContext;
63         m_xMCF = _xMCF;
64     }
65 
main(String args[])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
getWindowPeerOfFrame(XComponent xComp)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 
createDefaultTextDocument()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 laoder 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      */
showErrorMessageBox(XWindowPeer _xParentWindowPeer, String _sTitle, String _sMessage)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      */
isHighContrastModeActivated(XVclWindowPeer _xVclWindowPeer)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 
getRedColorShare(int _nColor)217     public static int getRedColorShare(int _nColor) {
218         int nRed = _nColor/65536;
219         return nRed;
220     }
221 
getGreenColorShare(int _nColor)222     public static int getGreenColorShare(int _nColor) {
223         int nRedModulo = _nColor % 65536;
224         int nGreen = nRedModulo / 256;
225         return nGreen;
226     }
227 
getBlueColorShare(int _nColor)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: */
238