]> sigrok.org Git - pulseview.git/blobdiff - pv/view/analogsignal.cpp
Fix #957 and #874 by implementing the pane splitter
[pulseview.git] / pv / view / analogsignal.cpp
index 4479885da72589eb678b45ad7f45d16830b8fc18..e0e0b16aafb24389ff6a56d12fee978793c67c7b 100644 (file)
@@ -31,7 +31,6 @@
 #include <QFormLayout>
 #include <QGridLayout>
 #include <QLabel>
-#include <QSpinBox>
 #include <QString>
 
 #include "analogsignal.hpp"
@@ -40,9 +39,9 @@
 #include "pv/data/logic.hpp"
 #include "pv/data/logicsegment.hpp"
 #include "pv/data/signalbase.hpp"
-#include "pv/view/view.hpp"
-#include "pv/view/logicsignal.hpp"
 #include "pv/globalsettings.hpp"
+#include "pv/view/logicsignal.hpp"
+#include "pv/view/view.hpp"
 
 #include <libsigrokcxx/libsigrokcxx.hpp>
 
@@ -176,7 +175,7 @@ void AnalogSignal::scale_handle_drag_release()
        update_scale();
 }
 
-void AnalogSignal::paint_back(QPainter &p, const ViewItemPaintParams &pp)
+void AnalogSignal::paint_back(QPainter &p, ViewItemPaintParams &pp)
 {
        if (base_->enabled()) {
                Trace::paint_back(p, pp);
@@ -184,7 +183,7 @@ void AnalogSignal::paint_back(QPainter &p, const ViewItemPaintParams &pp)
        }
 }
 
-void AnalogSignal::paint_mid(QPainter &p, const ViewItemPaintParams &pp)
+void AnalogSignal::paint_mid(QPainter &p, ViewItemPaintParams &pp)
 {
        assert(base_->analog_data());
        assert(owner_);
@@ -237,7 +236,7 @@ void AnalogSignal::paint_mid(QPainter &p, const ViewItemPaintParams &pp)
        }
 }
 
-void AnalogSignal::paint_fore(QPainter &p, const ViewItemPaintParams &pp)
+void AnalogSignal::paint_fore(QPainter &p, ViewItemPaintParams &pp)
 {
        if (!enabled())
                return;
@@ -264,13 +263,19 @@ 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_;
@@ -289,7 +294,9 @@ void AnalogSignal::paint_grid(QPainter &p, int y, int left, int right)
                        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_;
@@ -412,7 +419,7 @@ void AnalogSignal::paint_envelope(QPainter &p,
        delete[] e.samples;
 }
 
-void AnalogSignal::paint_logic_mid(QPainter &p, const ViewItemPaintParams &pp)
+void AnalogSignal::paint_logic_mid(QPainter &p, ViewItemPaintParams &pp)
 {
        QLineF *line;
 
@@ -422,7 +429,7 @@ void AnalogSignal::paint_logic_mid(QPainter &p, const ViewItemPaintParams &pp)
 
        const int y = get_visual_y();
 
-       if (!base_->enabled())
+       if (!base_->enabled() || !base_->logic_data())
                return;
 
        const int signal_margin =
@@ -435,6 +442,7 @@ void AnalogSignal::paint_logic_mid(QPainter &p, const ViewItemPaintParams &pp)
 
        const deque< shared_ptr<pv::data::LogicSegment> > &segments =
                base_->logic_data()->logic_segments();
+
        if (segments.empty())
                return;
 
@@ -451,6 +459,7 @@ void AnalogSignal::paint_logic_mid(QPainter &p, const ViewItemPaintParams &pp)
        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();
 
@@ -463,6 +472,22 @@ void AnalogSignal::paint_logic_mid(QPainter &p, const ViewItemPaintParams &pp)
                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];
@@ -472,8 +497,28 @@ void AnalogSignal::paint_logic_mid(QPainter &p, const ViewItemPaintParams &pp)
                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;
@@ -491,29 +536,11 @@ void AnalogSignal::paint_logic_mid(QPainter &p, const ViewItemPaintParams &pp)
 
        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);
+       if (show_sampling_points) {
+               p.setPen(SamplingPointColour);
+               p.drawRects(sampling_points.data(), sampling_points.size());
        }
-
-       p.setPen(SamplingPointColour);
-       p.drawRects(sampling_points, sampling_points_count);
-       delete[] sampling_points;
 }
 
 void AnalogSignal::paint_logic_caps(QPainter &p, QLineF *const lines,
@@ -560,7 +587,7 @@ void AnalogSignal::update_conversion_type()
                owner_->row_item_appearance_changed(false, true);
 }
 
-void AnalogSignal::perform_autoranging(bool force_update)
+void AnalogSignal::perform_autoranging(bool keep_divs, bool force_update)
 {
        const deque< shared_ptr<pv::data::AnalogSegment> > &segments =
                base_->analog_data()->analog_segments();
@@ -583,16 +610,33 @@ void AnalogSignal::perform_autoranging(bool force_update)
        prev_min = min;
        prev_max = max;
 
-       // 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;
+       // 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);
        }
 
-       // Split up the divs if there are negative values but no negative divs
+       // 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_ = pos_vdivs_ / 2;
-               pos_vdivs_ -= neg_vdivs_;
+               neg_vdivs_ = 1;
+               owner_->extents_changed(false, true);
        }
 
        double min_value_per_div;
@@ -621,19 +665,19 @@ void AnalogSignal::populate_popup_form(QWidget *parent, QFormLayout *form)
        QFormLayout *const layout = new QFormLayout;
 
        // Add the number of vdivs
-       QSpinBox *pvdiv_sb = new QSpinBox(parent);
-       pvdiv_sb->setRange(0, MaximumVDivs);
-       pvdiv_sb->setValue(pos_vdivs_);
-       connect(pvdiv_sb, SIGNAL(valueChanged(int)),
+       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);
+       layout->addRow(tr("Number of pos vertical divs"), pvdiv_sb_);
 
-       QSpinBox *nvdiv_sb = new QSpinBox(parent);
-       nvdiv_sb->setRange(0, MaximumVDivs);
-       nvdiv_sb->setValue(neg_vdivs_);
-       connect(nvdiv_sb, SIGNAL(valueChanged(int)),
+       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);
+       layout->addRow(tr("Number of neg vertical divs"), nvdiv_sb_);
 
        // Add the vertical resolution
        resolution_cb_ = new QComboBox(parent);
@@ -675,7 +719,7 @@ void AnalogSignal::populate_popup_form(QWidget *parent, QFormLayout *form)
        cur_idx = conversion_cb_->findData(QVariant(conversion_type_));
        conversion_cb_->setCurrentIndex(cur_idx);
 
-       layout->addRow(tr("Conversion"), conversion_cb_);
+//     layout->addRow(tr("Conversion"), conversion_cb_);
 
        connect(conversion_cb_, SIGNAL(currentIndexChanged(int)),
                this, SLOT(on_conversion_changed(int)));
@@ -690,7 +734,7 @@ void AnalogSignal::populate_popup_form(QWidget *parent, QFormLayout *form)
        cur_idx = display_type_cb_->findData(QVariant(display_type_));
        display_type_cb_->setCurrentIndex(cur_idx);
 
-       layout->addRow(tr("Traces to show:"), display_type_cb_);
+//     layout->addRow(tr("Traces to show:"), display_type_cb_);
 
        connect(display_type_cb_, SIGNAL(currentIndexChanged(int)),
                this, SLOT(on_display_type_changed(int)));
@@ -700,21 +744,32 @@ void AnalogSignal::populate_popup_form(QWidget *parent, QFormLayout *form)
 
 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);
-       }
+       perform_autoranging(false, false);
 }
 
 void AnalogSignal::on_pos_vdivs_changed(int vdivs)
 {
+       if (vdivs == pos_vdivs_)
+               return;
+
        pos_vdivs_ = vdivs;
 
-       if (autoranging_)
-               perform_autoranging(true);
+       // 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
@@ -725,10 +780,27 @@ void AnalogSignal::on_pos_vdivs_changed(int vdivs)
 
 void AnalogSignal::on_neg_vdivs_changed(int vdivs)
 {
+       if (vdivs == neg_vdivs_)
+               return;
+
        neg_vdivs_ = vdivs;
 
-       if (autoranging_)
-               perform_autoranging(true);
+       // 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
@@ -751,7 +823,7 @@ void AnalogSignal::on_autoranging_changed(int state)
        autoranging_ = (state == Qt::Checked);
 
        if (autoranging_)
-               perform_autoranging(true);
+               perform_autoranging(false, true);
 
        if (owner_) {
                // Call order is important, otherwise the lazy event handler won't work