canPaste is checked inside canPasteInto to forbid pasting stated inside other...

canPaste is checked inside canPasteInto to forbid pasting stated inside other states selected in the editor.
refs 2337

org.fortiss.tooling.kernel.ui/trunk/src/org/fortiss/tooling/kernel/ui/util/CopyPasteUtils.java

@@ -31,10 +31,13 @@ import org.eclipse.swt.dnd.DND;
 import org.eclipse.swt.dnd.TextTransfer;
 import org.eclipse.swt.dnd.Transfer;
 import org.eclipse.swt.widgets.Display;
+import org.eclipse.ui.IWorkbenchPart;
+import org.eclipse.ui.PlatformUI;
 import org.fortiss.tooling.kernel.extension.data.IElementCompositionContext;
 import org.fortiss.tooling.kernel.model.ISpeciallyCopyiable;
 import org.fortiss.tooling.kernel.service.IElementCompositorService;
 import org.fortiss.tooling.kernel.ui.dnd.CompositionServiceLocalCopyPasteTransfer;
+import org.fortiss.tooling.kernel.ui.internal.editor.ExtendableMultiPageEditor;
 
 /**
  * Methods for copy/paste transfer. EMF serialization and {@link TextTransfer} is used to transfer
@@ -45,7 +48,7 @@ import org.fortiss.tooling.kernel.ui.dnd.CompositionServiceLocalCopyPasteTransfe
  * 
  * @author $Author$
  * @version $Rev$
- * @ConQAT.Rating GREEN Hash: 69F65ED1A7907B28D027A90EDD5A88AA
+ * @ConQAT.Rating YELLOW Hash: 0006B2EE182F1E5CB8FE7EF604679259
  */
 public class CopyPasteUtils {
 
@@ -135,11 +138,26 @@ public class CopyPasteUtils {
 	 *         target
 	 */
 	public static boolean canPasteInto(EObject target, IElementCompositionContext context) {
+
 		EObject[] contents = getClipBoardContent();
 		if(contents == null) {
 			return false;
 		}
+
 		for(EObject insertObj : contents) {
+			if(insertObj instanceof ISpeciallyCopyiable) {
+
+				IWorkbenchPart activePart =
+						PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage()
+								.getActivePart();
+
+				if(activePart instanceof ExtendableMultiPageEditor) {
+					if(!((ISpeciallyCopyiable)insertObj).canPaste(
+							((ExtendableMultiPageEditor)activePart).getEditedObject(), target))
+						return false;
+				}
+
+			}
 			if(IElementCompositorService.INSTANCE.canCompose(target, insertObj, context)) {
 				return true;
 			}