X-Git-Url: http://git.code-monkey.de/?a=blobdiff_plain;f=pv%2Fview%2Fviewport.cpp;h=3b06cf9e85e0bc31a5c8f4e7edba38be8aaaa119;hb=744905d4ec6a05b53c17efb393a0ef907d95ebe2;hp=145f040fc93be7413d23458e6383c971304073a8;hpb=903038a8c9496b23d29535dd8c41a6c207c0831b;p=pulseview.git

diff --git a/pv/view/viewport.cpp b/pv/view/viewport.cpp
index 145f040..3b06cf9 100644
--- a/pv/view/viewport.cpp
+++ b/pv/view/viewport.cpp
@@ -28,8 +28,10 @@
 
 #include <boost/foreach.hpp>
 
-using namespace boost;
-using namespace std;
+using boost::shared_ptr;
+using std::max;
+using std::min;
+using std::vector;
 
 namespace pv {
 namespace view {
@@ -47,6 +49,10 @@ Viewport::Viewport(View &parent) :
 
 	connect(&_view, SIGNAL(signals_moved()),
 		this, SLOT(on_signals_moved()));
+
+	// Trigger the initial event manually. The default device has signals
+	// which were created before this object came into being
+	on_signals_changed();
 }
 
 int Viewport::get_total_height() const