#include "pv/data/analogsegment.hpp"
#include "pv/data/signalbase.hpp"
#include "pv/view/view.hpp"
+#include "pv/globalsettings.hpp"
#include <libsigrokcxx/libsigrokcxx.hpp>
const QColor AnalogSignal::GridMajorColor = QColor(0, 0, 0, 40*256/100);
const QColor AnalogSignal::GridMinorColor = QColor(0, 0, 0, 20*256/100);
+const QColor AnalogSignal::SamplingPointColour(0x77, 0x77, 0x77);
+
const float AnalogSignal::EnvelopeThreshold = 256.0f;
const int AnalogSignal::MaximumVDivs = 10;
pos_vdivs_(1),
neg_vdivs_(1),
resolution_(0),
- autoranging_(1)
+ autoranging_(true)
{
+ pv::data::Analog* analog_data =
+ dynamic_cast<pv::data::Analog*>(data().get());
+
+ connect(analog_data, SIGNAL(samples_added(QObject*, uint64_t, uint64_t)),
+ this, SLOT(on_samples_added()));
+
base_->set_colour(SignalColours[base_->index() % countof(SignalColours)]);
update_scale();
}
{
p.setPen(base_->colour());
- QPointF *points = new QPointF[end - start];
+ const int64_t points_count = end - start;
+
+ QPointF *points = new QPointF[points_count];
QPointF *point = points;
+ QRectF *const sampling_points = new QRectF[points_count];
+ QRectF *sampling_point = sampling_points;
+
pv::data::SegmentAnalogDataIterator* it =
segment->begin_sample_iteration(start);
+ const int w = 2;
for (int64_t sample = start; sample != end; sample++) {
const float x = (sample / samples_per_pixel -
pixels_offset) + left;
*point++ = QPointF(x, y - *((float*)it->value) * scale_);
+ *sampling_point++ = QRectF(x - (w / 2), y - *((float*)it->value) * scale_ - (w / 2), w, w);
+
segment->continue_sample_iteration(it, 1);
}
segment->end_sample_iteration(it);
- p.drawPolyline(points, point - points);
+ p.drawPolyline(points, points_count);
+
+ // Paint the sampling points if enabled
+ GlobalSettings settings;
+ const bool show_sampling_points =
+ settings.value(GlobalSettings::Key_View_ShowSamplingPoints).toBool();
+
+ if (show_sampling_points && (samples_per_pixel < 0.25)) {
+ p.setPen(SamplingPointColour);
+ p.drawRects(sampling_points, points_count);
+ }
delete[] points;
+ delete[] sampling_points;
}
void AnalogSignal::paint_envelope(QPainter &p,
neg_vdivs_ = 0;
}
+ // Split up the divs if there are negative values but no negative divs
+ if ((min < 0) && (neg_vdivs_ == 0)) {
+ neg_vdivs_ = pos_vdivs_ / 2;
+ pos_vdivs_ -= neg_vdivs_;
+ }
+
double min_value_per_div;
if ((pos_vdivs_ > 0) && (neg_vdivs_ > 0))
min_value_per_div = std::max(max / pos_vdivs_, -min / neg_vdivs_);
form->addRow(layout);
}
+void AnalogSignal::on_samples_added()
+{
+ perform_autoranging();
+
+ if (owner_) {
+ // Call order is important, otherwise the lazy event handler won't work
+ owner_->extents_changed(false, true);
+ owner_->row_item_appearance_changed(false, true);
+ }
+}
+
void AnalogSignal::on_pos_vdivs_changed(int vdivs)
{
pos_vdivs_ = vdivs;
if (autoranging_)
perform_autoranging(true);
- if (owner_)
+ if (owner_) {
+ // Call order is important, otherwise the lazy event handler won't work
+ owner_->extents_changed(false, true);
owner_->row_item_appearance_changed(false, true);
+ }
}
} // namespace TraceView