Split annotation data set into rows, and improved painting.

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

diff --git a/pv/view/decodetrace.cpp b/pv/view/decodetrace.cpp
index cf5cd2ee35e1cc496f953a44b63fdd711756bdfc..161eb9668bdd2217a43e8173d396138ea2908c6e 100644 (file)
--- a/pv/view/decodetrace.cpp
+++ b/pv/view/decodetrace.cpp
@@ -47,8 +47,13 @@ extern "C" {
 #include <pv/widgets/decodergroupbox.h>
 #include <pv/widgets/decodermenu.h>
 
-using namespace boost;
-using namespace std;
+using boost::dynamic_pointer_cast;
+using boost::shared_ptr;
+using std::list;
+using std::max;
+using std::map;
+using std::min;
+using std::vector;
 
 namespace pv {
 namespace view {
@@ -117,7 +122,7 @@ void DecodeTrace::paint_back(QPainter &p, int left, int right)
 
 void DecodeTrace::paint_mid(QPainter &p, int left, int right)
 {
-       using pv::data::decode::Annotation;
+       using namespace pv::data::decode;
 
        const double scale = _view->scale();
        assert(scale > 0);
@@ -132,29 +137,49 @@ void DecodeTrace::paint_mid(QPainter &p, int left, int right)
                _decoder_stack->get_start_time()) / scale;
        const double samples_per_pixel = samplerate * scale;
 
+       const uint64_t start_sample = (uint64_t)max((left + pixels_offset) *
+               samples_per_pixel, 0.0);
+       const uint64_t end_sample = (uint64_t)max((right + pixels_offset) *
+               samples_per_pixel, 0.0);
+
        QFontMetrics m(QApplication::font());
-       const int h = (m.boundingRect(QRect(), 0, "Tg").height() * 5) / 4;
+       const int text_height =  m.boundingRect(QRect(), 0, "Tg").height();
+       const int annotation_height = (text_height * 5) / 4;
+       const int row_height = (text_height * 6) / 4;
 
        assert(_decoder_stack);
        const QString err = _decoder_stack->error_message();
        if (!err.isEmpty())
        {
                draw_error(p, err, left, right);
-               draw_unresolved_period(p, h, left, right, samples_per_pixel,
-                       pixels_offset);
+               draw_unresolved_period(p, annotation_height, left, right,
+                       samples_per_pixel, pixels_offset);
                return;
        }
 
+       // Iterate through the rows
        assert(_view);
-       const int y = get_y();
+       int y = get_y();
 
        assert(_decoder_stack);
-       vector<Annotation> annotations(_decoder_stack->annotations());
-       BOOST_FOREACH(const Annotation &a, annotations)
-               draw_annotation(a, p, get_text_colour(), h, left, right,
-                       samples_per_pixel, pixels_offset, y);
 
-       draw_unresolved_period(p, h, left, right,
+       const vector<Row> rows(_decoder_stack->get_rows());
+       BOOST_FOREACH (const Row &row, rows)
+       {
+               vector<Annotation> annotations;
+               _decoder_stack->get_annotation_subset(annotations, row,
+                       start_sample, end_sample);
+               if (!annotations.empty()) {
+                       BOOST_FOREACH(const Annotation &a, annotations)
+                               draw_annotation(a, p, get_text_colour(),
+                                       annotation_height, left, right,
+                                       samples_per_pixel, pixels_offset, y);
+                       y += row_height;
+               }
+       }
+
+       // Draw the hatching
+       draw_unresolved_period(p, annotation_height, left, right,
                samples_per_pixel, pixels_offset);
 }