Initial decode painting

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

diff --git a/pv/view/decodesignal.cpp b/pv/view/decodesignal.cpp
index 44144d1b8b8e31a37648e6d44fb03221e20e94bb..33ea33f381e484391c82ec7cb83427b45d3a252f 100644 (file)
--- a/pv/view/decodesignal.cpp
+++ b/pv/view/decodesignal.cpp
@@ -26,6 +26,7 @@ extern "C" {
 
 #include <pv/data/decoder.h>
 #include <pv/view/view.h>
+#include <pv/view/decode/annotation.h>
 
 using namespace boost;
 using namespace std;
@@ -61,9 +62,30 @@ void DecodeSignal::set_view(pv::view::View *view)
 
 void DecodeSignal::paint(QPainter &p, int left, int right)
 {
-       (void)p;
-       (void)left;
-       (void)right;
+       using namespace pv::view::decode;
+
+       assert(_view);
+       const int y = _v_offset - _view->v_offset();
+
+       const double scale = _view->scale();
+       assert(scale > 0);
+
+       double samplerate = _decoder->get_samplerate();
+
+       // Show sample rate as 1Hz when it is unknown
+       if (samplerate == 0.0)
+               samplerate = 1.0;
+
+       const double pixels_offset = (_view->offset() -
+               _decoder->get_start_time()) / scale;
+       const double samples_per_pixel = samplerate * scale;
+
+       assert(_decoder);
+       vector< shared_ptr<Annotation> > annotations(_decoder->annotations());
+       BOOST_FOREACH(shared_ptr<Annotation> a, annotations) {
+               assert(a);
+               a->paint(p, left, right, samples_per_pixel, pixels_offset, y);
+       }
 }
 
 const list<QAction*> DecodeSignal::get_context_bar_actions()