start moving core frameworks to external libraries

app/widget/timelinewidget/tool/pointer.cpp

@@ -26,7 +26,6 @@
 #include "common/clamp.h"
 #include "common/qtutils.h"
 #include "common/range.h"
-#include "common/timecodefunctions.h"
 #include "config/config.h"
 #include "core.h"
 #include "node/block/gap/gap.h"
@@ -596,10 +595,10 @@ void PointerTool::ProcessDrag(const TimelineCoordinate &mouse_pos)
   rational tooltip_timebase = parent()->GetTimebaseForTrackType(drag_start_.GetTrack().type());
   QToolTip::hideText();
   QToolTip::showText(QCursor::pos(),
-                     Timecode::time_to_timecode(time_movement,
-                                                tooltip_timebase,
-                                                Core::instance()->GetTimecodeDisplay(),
-                                                true),
+                     QString::fromStdString(Timecode::time_to_timecode(time_movement,
+                                                                       tooltip_timebase,
+                                                                       Core::instance()->GetTimecodeDisplay(),
+                                                                       true)),
                      parent());
 }