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