Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.modeling.ui / src / org / simantics / modeling / ui / actions / MergeFlagsHandler.java

diff --git a/bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/actions/MergeFlagsHandler.java b/bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/actions/MergeFlagsHandler.java
new file mode 100644 (file)
index 0000000..a003c13
--- /dev/null
+++ b/bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/actions/MergeFlagsHandler.java
@@ -0,0 +1,56 @@
+package org.simantics.modeling.ui.actions;\r
+\r
+import java.util.Collections;\r
+import java.util.List;\r
+\r
+import org.eclipse.core.runtime.IProgressMonitor;\r
+import org.eclipse.ui.PlatformUI;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.WriteGraph;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.diagram.synchronization.runtime.DiagramSelectionUpdater;\r
+import org.simantics.g2d.canvas.ICanvasContext;\r
+import org.simantics.modeling.flags.MergeFlags;\r
+\r
+/**\r
+ * @author Hannu Niemistö\r
+ * @author Tuukka Lehtonen\r
+ */\r
+public class MergeFlagsHandler extends FlagOperationHandler {\r
+\r
+    protected void perform(IProgressMonitor monitor, WriteGraph graph, List<Resource> flags, ICanvasContext canvasContext) throws DatabaseException {\r
+        monitor.beginTask("Merge Selected Flags", IProgressMonitor.UNKNOWN);\r
+        performMerge(graph, flags, canvasContext);\r
+    }\r
+\r
+    public static void performMerge(WriteGraph graph, List<Resource> flags, ICanvasContext canvasContext) throws DatabaseException {\r
+        final String text = MergeFlags.validateForMerge(graph, flags);\r
+        if(text != null) {\r
+            System.err.println(text);\r
+            PlatformUI.getWorkbench().getDisplay().asyncExec(new Runnable() {\r
+                @Override\r
+                public void run() {\r
+                    PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage()\r
+                    .getActiveEditor().getEditorSite().getActionBars().getStatusLineManager()\r
+                    .setErrorMessage(text);\r
+                }\r
+            });\r
+        }\r
+        else {\r
+            String result = MergeFlags.merge(graph, flags);\r
+            if(result != null && !result.isEmpty()) {\r
+                System.err.println(result); // Should not happen because of prevalidation\r
+            } else {\r
+                if (canvasContext != null) {\r
+                    // Make sure the diagram selection is set to the\r
+                    // merged flag after the merge.\r
+                    new DiagramSelectionUpdater( canvasContext )\r
+                    .setNewSelection(0, Collections.singleton( flags.get(0) ))\r
+                    .setOneshot(true)\r
+                    .track();\r
+                }\r
+            }\r
+        }\r
+    }\r
+\r
+}\r