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34 
35 import com.sun.star.awt.XMessageBox;
36 import com.sun.star.awt.XWindowPeer;
37 import com.sun.star.frame.XDesktop;
38 import com.sun.star.uno.UnoRuntime;
39 import com.sun.star.lang.*;
40 import com.sun.star.frame.XModel;
41 import com.sun.star.frame.XController;
42 
43 // application specific classes
44 import com.sun.star.chart.*;
45 import com.sun.star.uno.XComponentContext;
46 import com.sun.star.uno.XInterface;
47 
48 import com.sun.star.view.XSelectionChangeListener;
49 import com.sun.star.view.XSelectionSupplier;
50 
51 import com.sun.star.table.CellRangeAddress;
52 import com.sun.star.table.XCellRange;
53 import com.sun.star.sheet.XCellRangeAddressable;
54 
55 import com.sun.star.awt.Point;
56 import com.sun.star.awt.Rectangle;
57 import com.sun.star.awt.Size;
58 import com.sun.star.awt.XMessageBoxFactory;
59 import com.sun.star.awt.XWindow;
60 
61 // __________ Implementation __________
62 
63 /** Create a spreadsheet add some data.
64  * Create a presentation and add a chart.
65  * Connect the chart to a calc range via a listener
66  *
67  * Note: This example does not work in StarOffice 6.0.  It will be available
68  * in the StarOffice Accessibility release.
69  *
70  * @author Björn Milcke
71  */
72 public class SelectionChangeListener implements XSelectionChangeListener {
73     public static void main( String args[] ) {
74         SelectionChangeListener aMySelf = new SelectionChangeListener( args );
75 
76         aMySelf.run();
77     }
78 
79     public SelectionChangeListener( String args[] ) {
80         Helper aHelper = new Helper( args );
81 
82         maContext = aHelper.getComponentContext();
83 
84         CalcHelper aCalcHelper = new CalcHelper( aHelper.createSpreadsheetDocument() );
85 
86         // insert a cell range with 4 columns and 12 rows filled with random numbers
87         XCellRange aRange = aCalcHelper.insertRandomRange( 4, 12 );
88         CellRangeAddress aRangeAddress = ((XCellRangeAddressable) UnoRuntime.queryInterface(
89             XCellRangeAddressable.class, aRange)).getRangeAddress();
90 
91         // change view to sheet containing the chart
92         aCalcHelper.raiseChartSheet();
93 
94         // the unit for measures is 1/100th of a millimeter
95         // position at (1cm, 1cm)
96         Point aPos    = new Point( 1000, 1000 );
97 
98         // size of the chart is 15cm x 9.271cm
99         Size  aExtent = new Size( 15000, 9271 );
100 
101         // insert a new chart into the "Chart" sheet of the
102         // spreadsheet document
103         maChartDocument = aCalcHelper.insertChart(
104             "SampleChart",
105             aRangeAddress,
106             aPos,
107             aExtent,
108             "com.sun.star.chart.XYDiagram" );
109     }
110 
111     // ____________________
112 
113     public void run() {
114         boolean bTrying = true;
115 
116         while( bTrying ) {
117             // start listening for selection changes
118             XSelectionSupplier aSelSupp = (XSelectionSupplier) UnoRuntime.queryInterface(
119                 XSelectionSupplier.class,
120                 (((XModel) UnoRuntime.queryInterface(
121                 XModel.class, maChartDocument )).getCurrentController()) );
122             if( aSelSupp != null ) {
123                 aSelSupp.addSelectionChangeListener( this );
124                 System.out.println( "Successfully attached as selection change listener" );
125                 bTrying = false;
126             }
127 
128             // start listening for death of Controller
129             XComponent aComp = (XComponent) UnoRuntime.queryInterface( XComponent.class, aSelSupp );
130             if( aComp != null ) {
131                 aComp.addEventListener( this );
132                 System.out.println( "Successfully attached as dispose listener" );
133             }
134 
135             try {
136                 Thread.currentThread().sleep( 500 );
137             } catch( InterruptedException ex ) {
138             }
139         }
140     }
141 
142     // ____________________
143 
144     // XEventListener (base of XSelectionChangeListener)
145     public void disposing( EventObject aSourceObj ) {
146         System.out.println( "disposing called.  detaching as listener" );
147 
148         // stop listening for selection changes
149         XSelectionSupplier aCtrl = (XSelectionSupplier) UnoRuntime.queryInterface(
150             XSelectionSupplier.class, aSourceObj );
151         if( aCtrl != null )
152             aCtrl.removeSelectionChangeListener( this );
153 
154         // remove as dispose listener
155         XComponent aComp = (XComponent) UnoRuntime.queryInterface( XComponent.class, aSourceObj );
156         if( aComp != null )
157             aComp.removeEventListener( this );
158 
159         // bail out
160         System.exit( 0 );
161     }
162 
163     // ____________________
164 
165     // XSelectionChangeListener
166     public void selectionChanged( EventObject aEvent ) {
167         XController aCtrl = (XController) UnoRuntime.queryInterface( XController.class, aEvent.Source );
168         if( aCtrl != null ) {
169             XMultiComponentFactory mMCF = maContext.getServiceManager();
170 
171             MyMessageBox aMsgBox = new MyMessageBox(mMCF);
172 
173             aMsgBox.start();
174 
175             System.out.println("Listener finished");
176         }
177     }
178 
179     // __________ private __________
180 
181     private class MyMessageBox extends Thread{
182         private XMultiComponentFactory mMCF;
183 
184         public MyMessageBox(XMultiComponentFactory xMCF){
185             mMCF = xMCF;
186         }
187 
188         public void run() {
189             XDesktop aDesktop = null;
190             XInterface aToolKit = null;
191             try {
192                 Thread.sleep(1000);
193             } catch (InterruptedException ex) {
194                 ex.printStackTrace();
195             }
196             try {
197                 Object oDesktop = mMCF.createInstanceWithContext("com.sun.star.frame.Desktop", maContext);
198                 Object oToolKit = mMCF.createInstanceWithContext("com.sun.star.awt.Toolkit", maContext);
199 
200                 aDesktop = (XDesktop) UnoRuntime.queryInterface(XDesktop.class, oDesktop);
201                 aToolKit = (XInterface) UnoRuntime.queryInterface(XInterface.class, oToolKit);
202             } catch (Exception ex) {
203                 ex.printStackTrace();
204             }
205 
206             XWindow xWin = aDesktop.getCurrentFrame().getContainerWindow();
207             XWindowPeer aWinPeer = (XWindowPeer) UnoRuntime.queryInterface(XWindowPeer.class, xWin);
208 
209             Rectangle aRect = new Rectangle();
210             int button = com.sun.star.awt.MessageBoxButtons.BUTTONS_OK;
211             XMessageBoxFactory aMBF = (XMessageBoxFactory) UnoRuntime.queryInterface(XMessageBoxFactory.class, aToolKit);
212             XMessageBox xMB = aMBF.createMessageBox(aWinPeer, aRect, "infobox" , button, "Event-Notify", "Listener was called, selcetion has changed");
213             xMB.execute();
214         }
215     }
216 
217     private XChartDocument            maChartDocument;
218     private XComponentContext         maContext;
219 }
220