X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.document.linking.ui%2Fsrc%2Forg%2Fsimantics%2Fdocument%2Flinking%2Fge%2FMultiSelectionProvider.java;fp=bundles%2Forg.simantics.document.linking.ui%2Fsrc%2Forg%2Fsimantics%2Fdocument%2Flinking%2Fge%2FMultiSelectionProvider.java;h=2104f03b747d7c936459d77810f5667acae0b4f1;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.document.linking.ui/src/org/simantics/document/linking/ge/MultiSelectionProvider.java b/bundles/org.simantics.document.linking.ui/src/org/simantics/document/linking/ge/MultiSelectionProvider.java
new file mode 100644
index 000000000..2104f03b7
--- /dev/null
+++ b/bundles/org.simantics.document.linking.ui/src/org/simantics/document/linking/ge/MultiSelectionProvider.java
@@ -0,0 +1,66 @@
+package org.simantics.document.linking.ge;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.eclipse.jface.viewers.ISelection;
+import org.eclipse.jface.viewers.ISelectionChangedListener;
+import org.eclipse.jface.viewers.ISelectionProvider;
+import org.eclipse.jface.viewers.SelectionChangedEvent;
+
+/**
+ * Selection Provider for providing slections from multiple GraphExplorers attached to the same site
+ * .
+ * @author Marko Luukkainen <marko.luukkainen@vtt.fi>
+ *
+ */
+public class MultiSelectionProvider implements ISelectionProvider, ISelectionChangedListener {
+	
+	private List<ISelectionProvider> selectionProviders = new ArrayList<ISelectionProvider>();
+	private List<ISelectionChangedListener> listeners = new ArrayList<ISelectionChangedListener>();
+	private ISelection selection;
+	
+	@Override
+	public void addSelectionChangedListener(ISelectionChangedListener listener) {
+		listeners.add(listener);
+		
+	}
+	@Override
+	public void removeSelectionChangedListener(
+			ISelectionChangedListener listener) {
+		listeners.remove(listener);
+		
+	}
+	
+	@Override
+	public ISelection getSelection() {
+		return selection;
+	}
+	
+	@Override
+	public void setSelection(ISelection selection) {
+		this.selection = selection;
+		// TODO : should we pass the selection to selectionProviders? 
+	}
+	
+	@Override
+	public void selectionChanged(SelectionChangedEvent event) {
+		this.selection = event.getSelection();
+		SelectionChangedEvent fireEvent = new SelectionChangedEvent(this, selection);
+		for (ISelectionChangedListener l : listeners) {
+			l.selectionChanged(fireEvent);
+		}
+		
+	}
+	
+	public void addSelectionProvider(ISelectionProvider provider) {
+		selectionProviders.add(provider);
+		provider.addSelectionChangedListener(this);
+	}
+	
+	public void removeSelectionProvider(ISelectionProvider provider) {
+		selectionProviders.remove(provider);
+		provider.removeSelectionChangedListener(this);
+	}
+
+}