Make traces non-draggable outside the header area

[pulseview.git] / pv / view / trace.cpp

diff --git a/pv/view/trace.cpp b/pv/view/trace.cpp
index f7bba9ff31506e5a5fa68abaacfe1fe3163e321e..f7e7ebf25b8ec00a351bb415f7fe696de155e8b6 100644 (file)
--- a/pv/view/trace.cpp
+++ b/pv/view/trace.cpp
@@ -80,6 +80,17 @@ void Trace::set_coloured_bg(bool state)
        coloured_bg_ = state;
 }
 
+bool Trace::is_draggable() const
+{
+       const View *const view = owner_->view();
+       assert(view);
+
+       QPoint cursor_pos = view->mapFromGlobal(QCursor::pos());
+
+       // The signal is draggable only in the header area
+       return (cursor_pos.x() <= view->header_size().width());
+}
+
 void Trace::paint_label(QPainter &p, const QRect &rect, bool hover)
 {
        const int y = get_visual_y();