+void AnalogSignal::paint_logic_mid(QPainter &p, const ViewItemPaintParams &pp)
+{
+ QLineF *line;
+
+ vector< pair<int64_t, bool> > edges;
+
+ assert(base_);
+
+ const int y = get_visual_y();
+
+ if (!base_->enabled())
+ return;
+
+ const int signal_margin =
+ QFontMetrics(QApplication::font()).height() / 2;
+
+ const int ph = min(pos_vdivs_, 1) * div_height_;
+ const int nh = min(neg_vdivs_, 1) * div_height_;
+ const float high_offset = y - ph + signal_margin + 0.5f;
+ const float low_offset = y + nh - signal_margin - 0.5f;
+
+ const deque< shared_ptr<pv::data::LogicSegment> > &segments =
+ base_->logic_data()->logic_segments();
+ if (segments.empty())
+ return;
+
+ const shared_ptr<pv::data::LogicSegment> &segment =
+ segments.front();
+
+ double samplerate = segment->samplerate();
+
+ // Show sample rate as 1Hz when it is unknown
+ if (samplerate == 0.0)
+ samplerate = 1.0;
+
+ const double pixels_offset = pp.pixels_offset();
+ const pv::util::Timestamp& start_time = segment->start_time();
+ const int64_t last_sample = segment->get_sample_count() - 1;
+ const double samples_per_pixel = samplerate * pp.scale();
+ const pv::util::Timestamp start = samplerate * (pp.offset() - start_time);
+ const pv::util::Timestamp end = start + samples_per_pixel * pp.width();
+
+ const int64_t start_sample = min(max(floor(start).convert_to<int64_t>(),
+ (int64_t)0), last_sample);
+ const uint64_t end_sample = min(max(ceil(end).convert_to<int64_t>(),
+ (int64_t)0), last_sample);
+
+ segment->get_subsampled_edges(edges, start_sample, end_sample,
+ samples_per_pixel / LogicSignal::Oversampling, 0);
+ assert(edges.size() >= 2);
+
+ // Paint the edges
+ const unsigned int edge_count = edges.size() - 2;
+ QLineF *const edge_lines = new QLineF[edge_count];
+ line = edge_lines;
+
+ for (auto i = edges.cbegin() + 1; i != edges.cend() - 1; i++) {
+ const float x = ((*i).first / samples_per_pixel -
+ pixels_offset) + pp.left();
+ *line++ = QLineF(x, high_offset, x, low_offset);
+ }
+
+ p.setPen(LogicSignal::EdgeColour);
+ p.drawLines(edge_lines, edge_count);
+ delete[] edge_lines;
+
+ // Paint the caps
+ const unsigned int max_cap_line_count = edges.size();
+ QLineF *const cap_lines = new QLineF[max_cap_line_count];
+
+ p.setPen(LogicSignal::HighColour);
+ paint_logic_caps(p, cap_lines, edges, true, samples_per_pixel,
+ pixels_offset, pp.left(), high_offset);
+ p.setPen(LogicSignal::LowColour);
+ paint_logic_caps(p, cap_lines, edges, false, samples_per_pixel,
+ pixels_offset, pp.left(), low_offset);
+
+ delete[] cap_lines;
+
+ // Return if we don't need to paint the sampling points
+ GlobalSettings settings;
+ const bool show_sampling_points =
+ settings.value(GlobalSettings::Key_View_ShowSamplingPoints).toBool();
+
+ if (!show_sampling_points || (samples_per_pixel >= 0.25))
+ return;
+
+ // Paint the sampling points
+ const uint64_t sampling_points_count = end_sample - start_sample + 1;
+ QRectF *const sampling_points = new QRectF[sampling_points_count];
+ QRectF *sampling_point = sampling_points;
+
+ const int w = 1;
+ const float y_middle = high_offset - ((high_offset - low_offset) / 2);
+ for (uint64_t i = start_sample; i < end_sample + 1; ++i) {
+ const float x = (i / samples_per_pixel - pixels_offset) + pp.left();
+ *sampling_point++ = QRectF(x - (w / 2), y_middle - (w / 2), w, w);
+ }
+
+ p.setPen(SamplingPointColour);
+ p.drawRects(sampling_points, sampling_points_count);
+ delete[] sampling_points;
+}
+
+void AnalogSignal::paint_logic_caps(QPainter &p, QLineF *const lines,
+ vector< pair<int64_t, bool> > &edges, bool level,
+ double samples_per_pixel, double pixels_offset, float x_offset,
+ float y_offset)
+{
+ QLineF *line = lines;
+
+ for (auto i = edges.begin(); i != (edges.end() - 1); i++)
+ if ((*i).second == level) {
+ *line++ = QLineF(
+ ((*i).first / samples_per_pixel -
+ pixels_offset) + x_offset, y_offset,
+ ((*(i+1)).first / samples_per_pixel -
+ pixels_offset) + x_offset, y_offset);
+ }
+
+ p.drawLines(lines, line - lines);
+}
+
+float AnalogSignal::get_resolution(int scale_index)