X-Git-Url: http://sigrok.org/gitweb/?a=blobdiff_plain;f=pv%2Fview%2Fanalogsignal.cpp;h=906bbabb71a827746e5eb7b1aef39a89b3f28d76;hb=HEAD;hp=d9ac2f60afcf853d1b225a18c139854ec94ed824;hpb=85715407f784767052238586f4e7f64440b7693e;p=pulseview.git diff --git a/pv/view/analogsignal.cpp b/pv/view/analogsignal.cpp deleted file mode 100644 index d9ac2f60..00000000 --- a/pv/view/analogsignal.cpp +++ /dev/null @@ -1,529 +0,0 @@ -/* - * This file is part of the PulseView project. - * - * Copyright (C) 2012 Joel Holdsworth - * - * 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 . - */ - -#include - -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include -#include -#include - -#include "analogsignal.hpp" -#include "pv/data/analog.hpp" -#include "pv/data/analogsegment.hpp" -#include "pv/data/signalbase.hpp" -#include "pv/view/view.hpp" - -#include - -using std::max; -using std::make_pair; -using std::min; -using std::shared_ptr; -using std::deque; - -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 float AnalogSignal::EnvelopeThreshold = 256.0f; - -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 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), - autoranging_(1) -{ - pv::data::Analog* analog_data = - dynamic_cast(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 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("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("autoranging")) - autoranging_ = settings.value("autoranging").toBool(); -} - -std::pair 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, const ViewItemPaintParams &pp) -{ - if (base_->enabled()) { - Trace::paint_back(p, pp); - paint_axis(p, pp, get_visual_y()); - } -} - -void AnalogSignal::paint_mid(QPainter &p, const ViewItemPaintParams &pp) -{ - assert(base_->analog_data()); - assert(owner_); - - const int y = get_visual_y(); - - if (!base_->enabled()) - return; - - paint_grid(p, y, pp.left(), pp.right()); - - const deque< shared_ptr > &segments = - base_->analog_data()->analog_segments(); - if (segments.empty()) - return; - - const shared_ptr &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)0), last_sample); - const int64_t end_sample = min(max((ceil(end) + 1).convert_to(), - (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); -} - -void AnalogSignal::paint_fore(QPainter &p, const ViewItemPaintParams &pp) -{ - if (!enabled()) - return; - - 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); - - 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)); - } - - 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)); - } - - 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 &segment, - int y, int left, const int64_t start, const int64_t end, - const double pixels_offset, const double samples_per_pixel) -{ - p.setPen(base_->colour()); - - QPointF *points = new QPointF[end - start]; - QPointF *point = points; - - pv::data::SegmentAnalogDataIterator* it = - segment->begin_sample_iteration(start); - - 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_); - segment->continue_sample_iteration(it, 1); - } - segment->end_sample_iteration(it); - - p.drawPolyline(points, point - points); - - delete[] points; -} - -void AnalogSignal::paint_envelope(QPainter &p, - const shared_ptr &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; -} - -float AnalogSignal::get_resolution(int scale_index) -{ - const float seq[] = {1.0f, 2.0f, 5.0f}; - - const int offset = std::numeric_limits::max() / (2 * countof(seq)); - const std::div_t d = std::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::perform_autoranging(bool force_update) -{ - const deque< shared_ptr > &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 segment : segments) { - std::pair 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; - - // 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; - } - - 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 - QSpinBox *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); - - QSpinBox *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)); - } - - const 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); - - 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_) { - // 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) -{ - neg_vdivs_ = vdivs; - - if (autoranging_) - perform_autoranging(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_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(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); - } -} - -} // namespace TraceView -} // namespace views -} // namespace pv