X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fview%2Ftrace.cpp;h=ee0a4f0e921630b986a090bbdca494fb3849010f;hp=f7bba9ff31506e5a5fa68abaacfe1fe3163e321e;hb=796e136093befc76f6c223afff1c1221182cf5dd;hpb=ac0708fb7e6b4010d90a569386810d3d2edc7eb9

diff --git a/pv/view/trace.cpp b/pv/view/trace.cpp
index f7bba9ff..ee0a4f0e 100644
--- a/pv/view/trace.cpp
+++ b/pv/view/trace.cpp
@@ -80,6 +80,27 @@ 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::select(bool select)
+{
+	// Trace can only be selected if the mouse cursor is in the header area;
+	// as is_draggable() checks the same thing, we re-use it here
+	if (is_draggable() && select)
+		selected_ = true;
+	else
+		selected_ = false;
+}
+
 void Trace::paint_label(QPainter &p, const QRect &rect, bool hover)
 {
 	const int y = get_visual_y();