comparison framework/MainWindowBase.cpp @ 453:549f77216048

Rewind/ffwd shouldn't be available when nothing loaded

     emit canEditLayer(haveCurrentEditableLayer);
     emit canEditLayerTabular(haveCurrentEditableLayer || haveTabularLayer);
     emit canMeasureLayer(haveCurrentLayer);
     emit canSelect(haveMainModel && haveCurrentPane);
     emit canPlay(haveMainModel && havePlayTarget);
-    emit canFfwd(true);
-    emit canRewind(true);
+    emit canFfwd(haveMainModel);
+    emit canRewind(haveMainModel);
     emit canPaste(haveClipboardContents);
     emit canInsertInstant(haveCurrentPane);
     emit canInsertInstantsAtBoundaries(haveCurrentPane && haveSelection);
     emit canInsertItemAtSelection(haveCurrentPane && haveSelection && haveCurrentDurationLayer);
     emit canRenumberInstants(haveCurrentTimeInstantsLayer && haveSelection);