INTEGRATION: CWS sdk02 (1.1.2); FILE ADDED

2003/05/09 10:36:56 jsc 1.1.2.1: #109045# insert new and remove example zip file

odk/examples/DevelopersGuide/Charts/SelectionChangeListener.java

+// __________ Imports __________
+
+// base classes
+import com.sun.star.uno.XInterface;
+import com.sun.star.uno.UnoRuntime;
+import com.sun.star.lang.*;
+import com.sun.star.frame.XModel;
+import com.sun.star.frame.XController;
+
+// application specific classes
+import com.sun.star.chart.*;
+
+import com.sun.star.view.XSelectionChangeListener;
+import com.sun.star.view.XSelectionSupplier;
+
+import com.sun.star.table.CellRangeAddress;
+import com.sun.star.table.XCellRange;
+import com.sun.star.sheet.XCellRangeAddressable;
+
+import com.sun.star.awt.Point;
+import com.sun.star.awt.Size;
+
+// Exceptions
+import com.sun.star.uno.Exception;
+import com.sun.star.uno.RuntimeException;
+
+// for output messages
+import javax.swing.JOptionPane;
+
+// __________ Implementation __________
+
+/** Create a spreadsheet add some data.
+    Create a presentation and add a chart.
+    Connect the chart to a calc range via a listener
+
+    Note: This example does not work in StarOffice 6.0.  It will be available
+          in the StarOffice Accessibility release.
+
+    @author Björn Milcke
+ */
+public class SelectionChangeListener implements XSelectionChangeListener
+{
+    public static void main( String args[] )
+    {
+        SelectionChangeListener aMySelf = new SelectionChangeListener( args );
+
+        aMySelf.run();
+    }
+
+    public SelectionChangeListener( String args[] )
+    {
+        Helper aHelper = new Helper( args );
+
+        CalcHelper aCalcHelper = new CalcHelper( aHelper.createSpreadsheetDocument() );
+
+        // insert a cell range with 4 columns and 12 rows filled with random numbers
+        XCellRange aRange = aCalcHelper.insertRandomRange( 4, 12 );
+        CellRangeAddress aRangeAddress = ((XCellRangeAddressable) UnoRuntime.queryInterface(
+            XCellRangeAddressable.class, aRange)).getRangeAddress();
+
+        // change view to sheet containing the chart
+        aCalcHelper.raiseChartSheet();
+
+        // the unit for measures is 1/100th of a millimeter
+        // position at (1cm, 1cm)
+        Point aPos    = new Point( 1000, 1000 );
+
+        // size of the chart is 15cm x 9.271cm
+        Size  aExtent = new Size( 15000, 9271 );
+
+        // insert a new chart into the "Chart" sheet of the
+        // spreadsheet document
+        maChartDocument = aCalcHelper.insertChart(
+            "SampleChart",
+            aRangeAddress,
+            aPos,
+            aExtent,
+            "com.sun.star.chart.XYDiagram" );
+    }
+
+    // ____________________
+
+    public void run()
+    {
+        boolean bTrying = true;
+
+        while( bTrying )
+        {
+            // start listening for selection changes
+            XSelectionSupplier aSelSupp = (XSelectionSupplier) UnoRuntime.queryInterface(
+                XSelectionSupplier.class,
+                (((XModel) UnoRuntime.queryInterface(
+                      XModel.class, maChartDocument )).getCurrentController()) );
+            if( aSelSupp != null )
+            {
+                aSelSupp.addSelectionChangeListener( this );
+                System.out.println( "Successfully attached as selection change listener" );
+                bTrying = false;
+            }
+
+            // start listening for death of Controller
+            XComponent aComp = (XComponent) UnoRuntime.queryInterface( XComponent.class, aSelSupp );
+            if( aComp != null )
+            {
+                aComp.addEventListener( this );
+                System.out.println( "Successfully attached as dispose listener" );
+            }
+
+            try
+            {
+                Thread.currentThread().sleep( 500 );
+            }
+            catch( InterruptedException ex )
+            {
+            }
+        }
+    }
+
+    // ____________________
+
+    // XEventListener (base of XSelectionChangeListener)
+    public void disposing( EventObject aSourceObj )
+    {
+        System.out.println( "disposing called.  detaching as listener" );
+
+        // stop listening for selection changes
+        XSelectionSupplier aCtrl = (XSelectionSupplier) UnoRuntime.queryInterface(
+            XSelectionSupplier.class, aSourceObj );
+        if( aCtrl != null )
+            aCtrl.removeSelectionChangeListener( this );
+
+        // remove as dispose listener
+        XComponent aComp = (XComponent) UnoRuntime.queryInterface( XComponent.class, aSourceObj );
+        if( aComp != null )
+            aComp.removeEventListener( this );
+
+        // bail out
+        System.exit( 0 );
+    }
+
+    // ____________________
+
+    // XSelectionChangeListener
+    public void selectionChanged( EventObject aEvent )
+    {
+        XController aCtrl = (XController) UnoRuntime.queryInterface( XController.class, aEvent.Source );
+        if( aCtrl != null )
+        {
+            JOptionPane.showMessageDialog( null, "Selection has changed", "Got new Event",
+                                           JOptionPane.INFORMATION_MESSAGE );
+        }
+    }
+
+    // __________ private __________
+
+    private XChartDocument            maChartDocument;
+}