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Fixed #21 - IllegalStateException when closing SCViewer

This commit is contained in:
Brita Keller 2019-12-18 17:16:20 +01:00 committed by Gitea
parent 3d043ce1b7
commit 475181c8df
1 changed files with 8 additions and 3 deletions
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7
com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/parts/DesignBrowser.java
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@ -60,6 +60,7 @@ import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Text; import org.eclipse.swt.widgets.Text;
import org.eclipse.swt.widgets.ToolBar; import org.eclipse.swt.widgets.ToolBar;
import org.eclipse.swt.widgets.ToolItem; import org.eclipse.swt.widgets.ToolItem;
@ -373,9 +374,13 @@ public class DesignBrowser {
waveformViewerPart.addDisposeListener( new DisposeListener() { waveformViewerPart.addDisposeListener( new DisposeListener() {
@Override @Override
public void widgetDisposed(DisposeEvent e) { public void widgetDisposed(DisposeEvent e) {
// reset tree- and tableviewer Control control = treeViewer.getControl();
// check if widget is already disposed (f.ex. because of workbench closing)
if (control == null || control.isDisposed()) { //if so: do nothing
}else { //reset tree- and tableviewer
resetTreeViewer(); resetTreeViewer();
} }
}
} ); } );
} }
this.waveformViewerPart=waveformViewerPart; this.waveformViewerPart=waveformViewerPart;