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[pulseview.git] / pv / view / analogsignal.cpp
diff --git a/pv/view/analogsignal.cpp b/pv/view/analogsignal.cpp
deleted file mode 100644 (file)
index e0e0b16..0000000
+++ /dev/null
@@ -1,857 +0,0 @@
-/*
- * This file is part of the PulseView project.
- *
- * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <extdef.h>
-
-#include <cassert>
-#include <cmath>
-#include <cstdlib>
-#include <limits>
-#include <vector>
-
-#include <QApplication>
-#include <QCheckBox>
-#include <QComboBox>
-#include <QFormLayout>
-#include <QGridLayout>
-#include <QLabel>
-#include <QString>
-
-#include "analogsignal.hpp"
-#include "pv/data/analog.hpp"
-#include "pv/data/analogsegment.hpp"
-#include "pv/data/logic.hpp"
-#include "pv/data/logicsegment.hpp"
-#include "pv/data/signalbase.hpp"
-#include "pv/globalsettings.hpp"
-#include "pv/view/logicsignal.hpp"
-#include "pv/view/view.hpp"
-
-#include <libsigrokcxx/libsigrokcxx.hpp>
-
-using std::deque;
-using std::div;
-using std::div_t;
-using std::max;
-using std::make_pair;
-using std::min;
-using std::numeric_limits;
-using std::pair;
-using std::shared_ptr;
-using std::vector;
-
-namespace pv {
-namespace views {
-namespace TraceView {
-
-const QColor AnalogSignal::SignalColours[4] = {
-       QColor(0xC4, 0xA0, 0x00),       // Yellow
-       QColor(0x87, 0x20, 0x7A),       // Magenta
-       QColor(0x20, 0x4A, 0x87),       // Blue
-       QColor(0x4E, 0x9A, 0x06)        // Green
-};
-
-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 int64_t AnalogSignal::TracePaintBlockSize = 1024 * 1024;  // 4 MiB (due to float)
-const float AnalogSignal::EnvelopeThreshold = 64.0f;
-
-const int AnalogSignal::MaximumVDivs = 10;
-const int AnalogSignal::MinScaleIndex = -6;
-const int AnalogSignal::MaxScaleIndex = 7;
-
-const int AnalogSignal::InfoTextMarginRight = 20;
-const int AnalogSignal::InfoTextMarginBottom = 5;
-
-AnalogSignal::AnalogSignal(
-       pv::Session &session,
-       shared_ptr<data::SignalBase> base) :
-       Signal(session, base),
-       scale_index_(4), // 20 per div
-       scale_index_drag_offset_(0),
-       div_height_(3 * QFontMetrics(QApplication::font()).height()),
-       pos_vdivs_(1),
-       neg_vdivs_(1),
-       resolution_(0),
-       conversion_type_(data::SignalBase::NoConversion),
-       display_type_(DisplayBoth),
-       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();
-}
-
-shared_ptr<pv::data::SignalData> AnalogSignal::data() const
-{
-       return base_->analog_data();
-}
-
-void AnalogSignal::save_settings(QSettings &settings) const
-{
-       settings.setValue("pos_vdivs", pos_vdivs_);
-       settings.setValue("neg_vdivs", neg_vdivs_);
-       settings.setValue("scale_index", scale_index_);
-       settings.setValue("conversion_type", conversion_type_);
-       settings.setValue("display_type", display_type_);
-       settings.setValue("autoranging", autoranging_);
-}
-
-void AnalogSignal::restore_settings(QSettings &settings)
-{
-       if (settings.contains("pos_vdivs"))
-               pos_vdivs_ = settings.value("pos_vdivs").toInt();
-
-       if (settings.contains("neg_vdivs"))
-               neg_vdivs_ = settings.value("neg_vdivs").toInt();
-
-       if (settings.contains("scale_index")) {
-               scale_index_ = settings.value("scale_index").toInt();
-               update_scale();
-       }
-
-       if (settings.contains("conversion_type")) {
-               conversion_type_ = (data::SignalBase::ConversionType)(settings.value("conversion_type").toInt());
-               update_conversion_type();
-       }
-
-       if (settings.contains("display_type"))
-               display_type_ = (DisplayType)(settings.value("display_type").toInt());
-
-       if (settings.contains("autoranging"))
-               autoranging_ = settings.value("autoranging").toBool();
-}
-
-pair<int, int> AnalogSignal::v_extents() const
-{
-       const int ph = pos_vdivs_ * div_height_;
-       const int nh = neg_vdivs_ * div_height_;
-       return make_pair(-ph, nh);
-}
-
-int AnalogSignal::scale_handle_offset() const
-{
-       const int h = (pos_vdivs_ + neg_vdivs_) * div_height_;
-
-       return ((scale_index_drag_offset_ - scale_index_) * h / 4) - h / 2;
-}
-
-void AnalogSignal::scale_handle_dragged(int offset)
-{
-       const int h = (pos_vdivs_ + neg_vdivs_) * div_height_;
-
-       scale_index_ = scale_index_drag_offset_ - (offset + h / 2) / (h / 4);
-
-       update_scale();
-}
-
-void AnalogSignal::scale_handle_drag_release()
-{
-       scale_index_drag_offset_ = scale_index_;
-       update_scale();
-}
-
-void AnalogSignal::paint_back(QPainter &p, ViewItemPaintParams &pp)
-{
-       if (base_->enabled()) {
-               Trace::paint_back(p, pp);
-               paint_axis(p, pp, get_visual_y());
-       }
-}
-
-void AnalogSignal::paint_mid(QPainter &p, ViewItemPaintParams &pp)
-{
-       assert(base_->analog_data());
-       assert(owner_);
-
-       const int y = get_visual_y();
-
-       if (!base_->enabled())
-               return;
-
-       if ((display_type_ == DisplayAnalog) || (display_type_ == DisplayBoth)) {
-               paint_grid(p, y, pp.left(), pp.right());
-
-               const deque< shared_ptr<pv::data::AnalogSegment> > &segments =
-                       base_->analog_data()->analog_segments();
-               if (segments.empty())
-                       return;
-
-               const shared_ptr<pv::data::AnalogSegment> &segment =
-                       segments.front();
-
-               const double pixels_offset = pp.pixels_offset();
-               const double samplerate = max(1.0, segment->samplerate());
-               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 int64_t end_sample = min(max((ceil(end) + 1).convert_to<int64_t>(),
-                       (int64_t)0), last_sample);
-
-               if (samples_per_pixel < EnvelopeThreshold)
-                       paint_trace(p, segment, y, pp.left(),
-                               start_sample, end_sample,
-                               pixels_offset, samples_per_pixel);
-               else
-                       paint_envelope(p, segment, y, pp.left(),
-                               start_sample, end_sample,
-                               pixels_offset, samples_per_pixel);
-       }
-
-       if ((display_type_ == DisplayConverted) || (display_type_ == DisplayBoth)) {
-               if (((conversion_type_ == data::SignalBase::A2LConversionByTreshold) ||
-                       (conversion_type_ == data::SignalBase::A2LConversionBySchmittTrigger))) {
-
-                       paint_logic_mid(p, pp);
-               }
-       }
-}
-
-void AnalogSignal::paint_fore(QPainter &p, ViewItemPaintParams &pp)
-{
-       if (!enabled())
-               return;
-
-       if ((display_type_ == DisplayAnalog) || (display_type_ == DisplayBoth)) {
-               const int y = get_visual_y();
-
-               // Show the info section on the right side of the trace
-               const QString infotext = QString("%1 V/div").arg(resolution_);
-
-               p.setPen(base_->colour());
-               p.setFont(QApplication::font());
-
-               const QRectF bounding_rect = QRectF(pp.left(),
-                               y + v_extents().first,
-                               pp.width() - InfoTextMarginRight,
-                               v_extents().second - v_extents().first - InfoTextMarginBottom);
-
-               p.drawText(bounding_rect, Qt::AlignRight | Qt::AlignBottom, infotext);
-       }
-}
-
-void AnalogSignal::paint_grid(QPainter &p, int y, int left, int right)
-{
-       p.setRenderHint(QPainter::Antialiasing, false);
-
-       GlobalSettings settings;
-       const bool show_analog_minor_grid =
-               settings.value(GlobalSettings::Key_View_ShowAnalogMinorGrid).toBool();
-
-       if (pos_vdivs_ > 0) {
-               p.setPen(QPen(GridMajorColor, 1, Qt::DashLine));
-               for (int i = 1; i <= pos_vdivs_; i++) {
-                       const float dy = i * div_height_;
-                       p.drawLine(QLineF(left, y - dy, right, y - dy));
-               }
-       }
-
-       if ((pos_vdivs_ > 0) && show_analog_minor_grid) {
-               p.setPen(QPen(GridMinorColor, 1, Qt::DashLine));
-               for (int i = 0; i < pos_vdivs_; i++) {
-                       const float dy = i * div_height_;
-                       const float dy25 = dy + (0.25 * div_height_);
-                       const float dy50 = dy + (0.50 * div_height_);
-                       const float dy75 = dy + (0.75 * div_height_);
-                       p.drawLine(QLineF(left, y - dy25, right, y - dy25));
-                       p.drawLine(QLineF(left, y - dy50, right, y - dy50));
-                       p.drawLine(QLineF(left, y - dy75, right, y - dy75));
-               }
-       }
-
-       if (neg_vdivs_ > 0) {
-               p.setPen(QPen(GridMajorColor, 1, Qt::DashLine));
-               for (int i = 1; i <= neg_vdivs_; i++) {
-                       const float dy = i * div_height_;
-                       p.drawLine(QLineF(left, y + dy, right, y + dy));
-               }
-       }
-
-       if ((pos_vdivs_ > 0) && show_analog_minor_grid) {
-               p.setPen(QPen(GridMinorColor, 1, Qt::DashLine));
-               for (int i = 0; i < neg_vdivs_; i++) {
-                       const float dy = i * div_height_;
-                       const float dy25 = dy + (0.25 * div_height_);
-                       const float dy50 = dy + (0.50 * div_height_);
-                       const float dy75 = dy + (0.75 * div_height_);
-                       p.drawLine(QLineF(left, y + dy25, right, y + dy25));
-                       p.drawLine(QLineF(left, y + dy50, right, y + dy50));
-                       p.drawLine(QLineF(left, y + dy75, right, y + dy75));
-               }
-       }
-
-       p.setRenderHint(QPainter::Antialiasing, true);
-}
-
-void AnalogSignal::paint_trace(QPainter &p,
-       const shared_ptr<pv::data::AnalogSegment> &segment,
-       int y, int left, const int64_t start, const int64_t end,
-       const double pixels_offset, const double samples_per_pixel)
-{
-       if (end <= start)
-               return;
-
-       // Calculate and paint the sampling points if enabled and useful
-       GlobalSettings settings;
-       const bool show_sampling_points =
-               settings.value(GlobalSettings::Key_View_ShowSamplingPoints).toBool() &&
-               (samples_per_pixel < 0.25);
-
-       p.setPen(base_->colour());
-
-       const int64_t points_count = end - start;
-
-       QPointF *points = new QPointF[points_count];
-       QPointF *point = points;
-
-       QRectF *sampling_points = nullptr;
-       if (show_sampling_points)
-                sampling_points = new QRectF[points_count];
-       QRectF *sampling_point = sampling_points;
-
-       int64_t sample_count = min(points_count, TracePaintBlockSize);
-       int64_t block_sample = 0;
-       const float *sample_block = segment->get_samples(start, start + sample_count);
-
-       const int w = 2;
-       for (int64_t sample = start; sample != end; sample++, block_sample++) {
-
-               if (block_sample == TracePaintBlockSize) {
-                       block_sample = 0;
-                       delete[] sample_block;
-                       sample_count = min(points_count - sample, TracePaintBlockSize);
-                       sample_block = segment->get_samples(sample, sample + sample_count);
-               }
-
-               const float x = (sample / samples_per_pixel -
-                       pixels_offset) + left;
-
-               *point++ = QPointF(x, y - sample_block[block_sample] * scale_);
-
-               if (show_sampling_points)
-                       *sampling_point++ =
-                               QRectF(x - (w / 2), y - sample_block[block_sample] * scale_ - (w / 2), w, w);
-       }
-       delete[] sample_block;
-
-       p.drawPolyline(points, points_count);
-
-       if (show_sampling_points) {
-               p.setPen(SamplingPointColour);
-               p.drawRects(sampling_points, points_count);
-               delete[] sampling_points;
-       }
-
-       delete[] points;
-}
-
-void AnalogSignal::paint_envelope(QPainter &p,
-       const shared_ptr<pv::data::AnalogSegment> &segment,
-       int y, int left, const int64_t start, const int64_t end,
-       const double pixels_offset, const double samples_per_pixel)
-{
-       using pv::data::AnalogSegment;
-
-       AnalogSegment::EnvelopeSection e;
-       segment->get_envelope_section(e, start, end, samples_per_pixel);
-
-       if (e.length < 2)
-               return;
-
-       p.setPen(QPen(Qt::NoPen));
-       p.setBrush(base_->colour());
-
-       QRectF *const rects = new QRectF[e.length];
-       QRectF *rect = rects;
-
-       for (uint64_t sample = 0; sample < e.length - 1; sample++) {
-               const float x = ((e.scale * sample + e.start) /
-                       samples_per_pixel - pixels_offset) + left;
-               const AnalogSegment::EnvelopeSample *const s =
-                       e.samples + sample;
-
-               // We overlap this sample with the next so that vertical
-               // gaps do not appear during steep rising or falling edges
-               const float b = y - max(s->max, (s + 1)->min) * scale_;
-               const float t = y - min(s->min, (s + 1)->max) * scale_;
-
-               float h = b - t;
-               if (h >= 0.0f && h <= 1.0f)
-                       h = 1.0f;
-               if (h <= 0.0f && h >= -1.0f)
-                       h = -1.0f;
-
-               *rect++ = QRectF(x, t, 1.0f, h);
-       }
-
-       p.drawRects(rects, e.length);
-
-       delete[] rects;
-       delete[] e.samples;
-}
-
-void AnalogSignal::paint_logic_mid(QPainter &p, ViewItemPaintParams &pp)
-{
-       QLineF *line;
-
-       vector< pair<int64_t, bool> > edges;
-
-       assert(base_);
-
-       const int y = get_visual_y();
-
-       if (!base_->enabled() || !base_->logic_data())
-               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 double pixels_per_sample = 1 / samples_per_pixel;
-       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);
-
-       // Check whether we need to paint the sampling points
-       GlobalSettings settings;
-       const bool show_sampling_points =
-               settings.value(GlobalSettings::Key_View_ShowSamplingPoints).toBool() &&
-               (samples_per_pixel < 0.25);
-
-       vector<QRectF> sampling_points;
-       float sampling_point_x = 0.0f;
-       int64_t sampling_point_sample = start_sample;
-       const int w = 2;
-
-       if (show_sampling_points) {
-               sampling_points.reserve(end_sample - start_sample + 1);
-               sampling_point_x = (edges.cbegin()->first / samples_per_pixel - pixels_offset) + pp.left();
-       }
-
-       // 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);
-
-               if (show_sampling_points)
-                       while (sampling_point_sample < (*i).first) {
-                               const float y = (*i).second ? low_offset : high_offset;
-                               sampling_points.emplace_back(
-                                       QRectF(sampling_point_x - (w / 2), y - (w / 2), w, w));
-                               sampling_point_sample++;
-                               sampling_point_x += pixels_per_sample;
-                       };
-       }
-
-       // Calculate the sample points from the last edge to the end of the trace
-       if (show_sampling_points)
-               while ((uint64_t)sampling_point_sample <= end_sample) {
-                       // Signal changed after the last edge, so the level is inverted
-                       const float y = (edges.cend() - 1)->second ? high_offset : low_offset;
-                       sampling_points.emplace_back(
-                               QRectF(sampling_point_x - (w / 2), y - (w / 2), w, w));
-                       sampling_point_sample++;
-                       sampling_point_x += pixels_per_sample;
-               };
-
-       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;
-
-       // Paint the sampling points
-       if (show_sampling_points) {
-               p.setPen(SamplingPointColour);
-               p.drawRects(sampling_points.data(), sampling_points.size());
-       }
-}
-
-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)
-{
-       const float seq[] = {1.0f, 2.0f, 5.0f};
-
-       const int offset = numeric_limits<int>::max() / (2 * countof(seq));
-       const div_t d = div((int)(scale_index + countof(seq) * offset),
-               countof(seq));
-
-       return powf(10.0f, d.quot - offset) * seq[d.rem];
-}
-
-void AnalogSignal::update_scale()
-{
-       resolution_ = get_resolution(scale_index_);
-       scale_ = div_height_ / resolution_;
-}
-
-void AnalogSignal::update_conversion_type()
-{
-       base_->set_conversion_type(conversion_type_);
-
-       if (owner_)
-               owner_->row_item_appearance_changed(false, true);
-}
-
-void AnalogSignal::perform_autoranging(bool keep_divs, bool force_update)
-{
-       const deque< shared_ptr<pv::data::AnalogSegment> > &segments =
-               base_->analog_data()->analog_segments();
-
-       if (segments.empty())
-               return;
-
-       static double prev_min = 0, prev_max = 0;
-       double min = 0, max = 0;
-
-       for (shared_ptr<pv::data::AnalogSegment> segment : segments) {
-               pair<double, double> mm = segment->get_min_max();
-               min = std::min(min, mm.first);
-               max = std::max(max, mm.second);
-       }
-
-       if ((min == prev_min) && (max == prev_max) && !force_update)
-               return;
-
-       prev_min = min;
-       prev_max = max;
-
-       // If we're allowed to alter the div assignment...
-       if (!keep_divs) {
-               // Use all divs for the positive range if there are no negative values
-               if ((min == 0) && (neg_vdivs_ > 0)) {
-                       pos_vdivs_ += neg_vdivs_;
-                       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_;
-               }
-       }
-
-       // If there is still no positive div when we need it, add one
-       // (this can happen when pos_vdivs==neg_vdivs==0)
-       if ((max > 0) && (pos_vdivs_ == 0)) {
-               pos_vdivs_ = 1;
-               owner_->extents_changed(false, true);
-       }
-
-       // If there is still no negative div when we need it, add one
-       // (this can happen when pos_vdivs was 0 or 1 when trying to split)
-       if ((min < 0) && (neg_vdivs_ == 0)) {
-               neg_vdivs_ = 1;
-               owner_->extents_changed(false, true);
-       }
-
-       double min_value_per_div;
-       if ((pos_vdivs_ > 0) && (neg_vdivs_ >  0))
-               min_value_per_div = std::max(max / pos_vdivs_, -min / neg_vdivs_);
-       else if (pos_vdivs_ > 0)
-               min_value_per_div = max / pos_vdivs_;
-       else
-               min_value_per_div = -min / neg_vdivs_;
-
-       // Find first scale value that is bigger than the value we need
-       for (int i = MinScaleIndex; i < MaxScaleIndex; i++)
-               if (get_resolution(i) > min_value_per_div) {
-                       scale_index_ = i;
-                       break;
-               }
-
-       update_scale();
-}
-
-void AnalogSignal::populate_popup_form(QWidget *parent, QFormLayout *form)
-{
-       // Add the standard options
-       Signal::populate_popup_form(parent, form);
-
-       QFormLayout *const layout = new QFormLayout;
-
-       // Add the number of vdivs
-       pvdiv_sb_ = new QSpinBox(parent);
-       pvdiv_sb_->setRange(0, MaximumVDivs);
-       pvdiv_sb_->setValue(pos_vdivs_);
-       connect(pvdiv_sb_, SIGNAL(valueChanged(int)),
-               this, SLOT(on_pos_vdivs_changed(int)));
-       layout->addRow(tr("Number of pos vertical divs"), pvdiv_sb_);
-
-       nvdiv_sb_ = new QSpinBox(parent);
-       nvdiv_sb_->setRange(0, MaximumVDivs);
-       nvdiv_sb_->setValue(neg_vdivs_);
-       connect(nvdiv_sb_, SIGNAL(valueChanged(int)),
-               this, SLOT(on_neg_vdivs_changed(int)));
-       layout->addRow(tr("Number of neg vertical divs"), nvdiv_sb_);
-
-       // Add the vertical resolution
-       resolution_cb_ = new QComboBox(parent);
-
-       for (int i = MinScaleIndex; i < MaxScaleIndex; i++) {
-               const QString label = QString("%1").arg(get_resolution(i));
-               resolution_cb_->insertItem(0, label, QVariant(i));
-       }
-
-       int cur_idx = resolution_cb_->findData(QVariant(scale_index_));
-       resolution_cb_->setCurrentIndex(cur_idx);
-
-       connect(resolution_cb_, SIGNAL(currentIndexChanged(int)),
-               this, SLOT(on_resolution_changed(int)));
-
-       QGridLayout *const vdiv_layout = new QGridLayout;
-       QLabel *const vdiv_unit = new QLabel(tr("V/div"));
-       vdiv_layout->addWidget(resolution_cb_, 0, 0);
-       vdiv_layout->addWidget(vdiv_unit, 0, 1);
-
-       layout->addRow(tr("Vertical resolution"), vdiv_layout);
-
-       // Add the autoranging checkbox
-       QCheckBox* autoranging_cb = new QCheckBox();
-       autoranging_cb->setCheckState(autoranging_ ? Qt::Checked : Qt::Unchecked);
-
-       connect(autoranging_cb, SIGNAL(stateChanged(int)),
-               this, SLOT(on_autoranging_changed(int)));
-
-       layout->addRow(tr("Autoranging"), autoranging_cb);
-
-       // Add the conversion type dropdown
-       conversion_cb_ = new QComboBox();
-
-       conversion_cb_->addItem("none", data::SignalBase::NoConversion);
-       conversion_cb_->addItem("to logic via threshold", data::SignalBase::A2LConversionByTreshold);
-       conversion_cb_->addItem("to logic via schmitt-trigger", data::SignalBase::A2LConversionBySchmittTrigger);
-
-       cur_idx = conversion_cb_->findData(QVariant(conversion_type_));
-       conversion_cb_->setCurrentIndex(cur_idx);
-
-//     layout->addRow(tr("Conversion"), conversion_cb_);
-
-       connect(conversion_cb_, SIGNAL(currentIndexChanged(int)),
-               this, SLOT(on_conversion_changed(int)));
-
-       // Add the display type dropdown
-       display_type_cb_ = new QComboBox();
-
-       display_type_cb_->addItem(tr("Analog"), DisplayAnalog);
-       display_type_cb_->addItem(tr("Converted"), DisplayConverted);
-       display_type_cb_->addItem(tr("Both"), DisplayBoth);
-
-       cur_idx = display_type_cb_->findData(QVariant(display_type_));
-       display_type_cb_->setCurrentIndex(cur_idx);
-
-//     layout->addRow(tr("Traces to show:"), display_type_cb_);
-
-       connect(display_type_cb_, SIGNAL(currentIndexChanged(int)),
-               this, SLOT(on_display_type_changed(int)));
-
-       form->addRow(layout);
-}
-
-void AnalogSignal::on_samples_added()
-{
-       perform_autoranging(false, false);
-}
-
-void AnalogSignal::on_pos_vdivs_changed(int vdivs)
-{
-       if (vdivs == pos_vdivs_)
-               return;
-
-       pos_vdivs_ = vdivs;
-
-       // There has to be at least one div, positive or negative
-       if ((neg_vdivs_ == 0) && (pos_vdivs_ == 0)) {
-               pos_vdivs_ = 1;
-               if (pvdiv_sb_)
-                       pvdiv_sb_->setValue(pos_vdivs_);
-       }
-
-       if (autoranging_) {
-               perform_autoranging(true, true);
-
-               // It could be that a positive or negative div was added, so update
-               if (pvdiv_sb_) {
-                       pvdiv_sb_->setValue(pos_vdivs_);
-                       nvdiv_sb_->setValue(neg_vdivs_);
-               }
-       }
-
-       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_neg_vdivs_changed(int vdivs)
-{
-       if (vdivs == neg_vdivs_)
-               return;
-
-       neg_vdivs_ = vdivs;
-
-       // There has to be at least one div, positive or negative
-       if ((neg_vdivs_ == 0) && (pos_vdivs_ == 0)) {
-               pos_vdivs_ = 1;
-               if (pvdiv_sb_)
-                       pvdiv_sb_->setValue(pos_vdivs_);
-       }
-
-       if (autoranging_) {
-               perform_autoranging(true, true);
-
-               // It could be that a positive or negative div was added, so update
-               if (pvdiv_sb_) {
-                       pvdiv_sb_->setValue(pos_vdivs_);
-                       nvdiv_sb_->setValue(neg_vdivs_);
-               }
-       }
-
-       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_resolution_changed(int index)
-{
-       scale_index_ = resolution_cb_->itemData(index).toInt();
-       update_scale();
-
-       if (owner_)
-               owner_->row_item_appearance_changed(false, true);
-}
-
-void AnalogSignal::on_autoranging_changed(int state)
-{
-       autoranging_ = (state == Qt::Checked);
-
-       if (autoranging_)
-               perform_autoranging(false, true);
-
-       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_conversion_changed(int index)
-{
-       data::SignalBase::ConversionType old_conv_type = conversion_type_;
-
-       conversion_type_ = (data::SignalBase::ConversionType)(conversion_cb_->itemData(index).toInt());
-
-       if (conversion_type_ != old_conv_type) {
-               base_->set_conversion_type(conversion_type_);
-               update_conversion_type();
-       }
-}
-
-void AnalogSignal::on_display_type_changed(int index)
-{
-       display_type_ = (DisplayType)(display_type_cb_->itemData(index).toInt());
-
-       if (owner_)
-               owner_->row_item_appearance_changed(false, true);
-}
-
-} // namespace TraceView
-} // namespace views
-} // namespace pv