X-Git-Url: http://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fview%2Fview.cpp;fp=pv%2Fview%2Fview.cpp;h=0000000000000000000000000000000000000000;hp=eeda37ccfdbd1b1dc241b7ac7990d26f37af55d1;hb=1573bf16ba50d1c023ad3a9ce596f0ab6eaeacff;hpb=4c7a19d3d7049bcc9fb3185ce2bc91333a7ca9e1 diff --git a/pv/view/view.cpp b/pv/view/view.cpp deleted file mode 100644 index eeda37cc..00000000 --- a/pv/view/view.cpp +++ /dev/null @@ -1,1379 +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 . - */ - -#ifdef ENABLE_DECODE -#include -#endif - -#include - -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include - -#include -#include -#include -#include -#include -#include - -#include - -#include "analogsignal.hpp" -#include "header.hpp" -#include "logicsignal.hpp" -#include "ruler.hpp" -#include "signal.hpp" -#include "tracegroup.hpp" -#include "triggermarker.hpp" -#include "view.hpp" -#include "viewport.hpp" - -#include "pv/data/logic.hpp" -#include "pv/data/logicsegment.hpp" -#include "pv/devices/device.hpp" -#include "pv/globalsettings.hpp" -#include "pv/session.hpp" -#include "pv/util.hpp" - -#ifdef ENABLE_DECODE -#include "decodetrace.hpp" -#endif - -using pv::data::SignalData; -using pv::data::Segment; -using pv::util::TimeUnit; -using pv::util::Timestamp; - -using std::back_inserter; -using std::copy_if; -using std::count_if; -using std::dynamic_pointer_cast; -using std::inserter; -using std::max; -using std::make_pair; -using std::make_shared; -using std::min; -using std::pair; -using std::set; -using std::set_difference; -using std::shared_ptr; -using std::stringstream; -using std::unordered_map; -using std::unordered_set; -using std::vector; - -namespace pv { -namespace views { -namespace TraceView { - -const Timestamp View::MaxScale("1e9"); -const Timestamp View::MinScale("1e-12"); - -const int View::MaxScrollValue = INT_MAX / 2; - -const int View::ScaleUnits[3] = {1, 2, 5}; - - -CustomScrollArea::CustomScrollArea(QWidget *parent) : - QAbstractScrollArea(parent) -{ -} - -bool CustomScrollArea::viewportEvent(QEvent *event) -{ - switch (event->type()) { - case QEvent::Paint: - case QEvent::MouseButtonPress: - case QEvent::MouseButtonRelease: - case QEvent::MouseButtonDblClick: - case QEvent::MouseMove: - case QEvent::Wheel: - case QEvent::TouchBegin: - case QEvent::TouchUpdate: - case QEvent::TouchEnd: - return false; - default: - return QAbstractScrollArea::viewportEvent(event); - } -} - -View::View(Session &session, bool is_main_view, QWidget *parent) : - ViewBase(session, is_main_view, parent), - splitter_(new QSplitter()), - scale_(1e-3), - offset_(0), - updating_scroll_(false), - settings_restored_(false), - sticky_scrolling_(false), // Default setting is set in MainWindow::setup_ui() - always_zoom_to_fit_(false), - tick_period_(0), - tick_prefix_(pv::util::SIPrefix::yocto), - tick_precision_(0), - time_unit_(util::TimeUnit::Time), - show_cursors_(false), - cursors_(new CursorPair(*this)), - next_flag_text_('A'), - trigger_markers_(), - hover_point_(-1, -1), - scroll_needs_defaults_(true), - saved_v_offset_(0) -{ - QVBoxLayout *root_layout = new QVBoxLayout(this); - root_layout->setContentsMargins(0, 0, 0, 0); - root_layout->addWidget(splitter_); - - viewport_ = new Viewport(*this); - scrollarea_ = new CustomScrollArea(splitter_); - scrollarea_->setViewport(viewport_); - scrollarea_->setFrameShape(QFrame::NoFrame); - - ruler_ = new Ruler(*this); - - header_ = new Header(*this); - header_->setMinimumWidth(10); // So that the arrow tips show at least - - // We put the header into a simple layout so that we can add the top margin, - // allowing us to make it line up with the bottom of the ruler - QWidget *header_container = new QWidget(); - header_container->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding); - QVBoxLayout *header_layout = new QVBoxLayout(header_container); - header_layout->setContentsMargins(0, ruler_->sizeHint().height(), 0, 0); - header_layout->addWidget(header_); - - // To let the ruler and scrollarea be on the same split pane, we need a layout - QWidget *trace_container = new QWidget(); - trace_container->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding); - QVBoxLayout *trace_layout = new QVBoxLayout(trace_container); - trace_layout->setSpacing(0); // We don't want space between the ruler and scrollarea - trace_layout->setContentsMargins(0, 0, 0, 0); - trace_layout->addWidget(ruler_); - trace_layout->addWidget(scrollarea_); - - splitter_->addWidget(header_container); - splitter_->addWidget(trace_container); - splitter_->setHandleWidth(1); // Don't show a visible rubber band - splitter_->setCollapsible(0, false); // Prevent the header from collapsing - splitter_->setCollapsible(1, false); // Prevent the traces from collapsing - splitter_->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding); - - viewport_->installEventFilter(this); - ruler_->installEventFilter(this); - header_->installEventFilter(this); - - // Set up settings and event handlers - GlobalSettings settings; - coloured_bg_ = settings.value(GlobalSettings::Key_View_ColouredBG).toBool(); - - connect(scrollarea_->horizontalScrollBar(), SIGNAL(valueChanged(int)), - this, SLOT(h_scroll_value_changed(int))); - connect(scrollarea_->verticalScrollBar(), SIGNAL(valueChanged(int)), - this, SLOT(v_scroll_value_changed())); - - connect(header_, SIGNAL(selection_changed()), - ruler_, SLOT(clear_selection())); - connect(ruler_, SIGNAL(selection_changed()), - header_, SLOT(clear_selection())); - - connect(header_, SIGNAL(selection_changed()), - this, SIGNAL(selection_changed())); - connect(ruler_, SIGNAL(selection_changed()), - this, SIGNAL(selection_changed())); - - connect(splitter_, SIGNAL(splitterMoved(int, int)), - this, SLOT(on_splitter_moved())); - - connect(this, SIGNAL(hover_point_changed()), - this, SLOT(on_hover_point_changed())); - - connect(&lazy_event_handler_, SIGNAL(timeout()), - this, SLOT(process_sticky_events())); - lazy_event_handler_.setSingleShot(true); - - // Trigger the initial event manually. The default device has signals - // which were created before this object came into being - signals_changed(); - - // make sure the transparent widgets are on the top - ruler_->raise(); - header_->raise(); - - // Update the zoom state - calculate_tick_spacing(); -} - -Session& View::session() -{ - return session_; -} - -const Session& View::session() const -{ - return session_; -} - -unordered_set< shared_ptr > View::signals() const -{ - return signals_; -} - -void View::clear_signals() -{ - ViewBase::clear_signalbases(); - signals_.clear(); -} - -void View::add_signal(const shared_ptr signal) -{ - ViewBase::add_signalbase(signal->base()); - signals_.insert(signal); -} - -#ifdef ENABLE_DECODE -void View::clear_decode_signals() -{ - decode_traces_.clear(); -} - -void View::add_decode_signal(shared_ptr signalbase) -{ - shared_ptr d( - new DecodeTrace(session_, signalbase, decode_traces_.size())); - decode_traces_.push_back(d); -} - -void View::remove_decode_signal(shared_ptr signalbase) -{ - for (auto i = decode_traces_.begin(); i != decode_traces_.end(); i++) - if ((*i)->base() == signalbase) { - decode_traces_.erase(i); - signals_changed(); - return; - } -} -#endif - -View* View::view() -{ - return this; -} - -const View* View::view() const -{ - return this; -} - -Viewport* View::viewport() -{ - return viewport_; -} - -const Viewport* View::viewport() const -{ - return viewport_; -} - -void View::save_settings(QSettings &settings) const -{ - settings.setValue("scale", scale_); - settings.setValue("v_offset", - scrollarea_->verticalScrollBar()->sliderPosition()); - - settings.setValue("splitter_state", splitter_->saveState()); - - stringstream ss; - boost::archive::text_oarchive oa(ss); - oa << boost::serialization::make_nvp("offset", offset_); - settings.setValue("offset", QString::fromStdString(ss.str())); - - for (shared_ptr signal : signals_) { - settings.beginGroup(signal->base()->internal_name()); - signal->save_settings(settings); - settings.endGroup(); - } -} - -void View::restore_settings(QSettings &settings) -{ - // Note: It is assumed that this function is only called once, - // immediately after restoring a previous session. - - if (settings.contains("scale")) - set_scale(settings.value("scale").toDouble()); - - if (settings.contains("offset")) { - util::Timestamp offset; - stringstream ss; - ss << settings.value("offset").toString().toStdString(); - - boost::archive::text_iarchive ia(ss); - ia >> boost::serialization::make_nvp("offset", offset); - - set_offset(offset); - } - - if (settings.contains("splitter_state")) - splitter_->restoreState(settings.value("splitter_state").toByteArray()); - - for (shared_ptr signal : signals_) { - settings.beginGroup(signal->base()->internal_name()); - signal->restore_settings(settings); - settings.endGroup(); - } - - if (settings.contains("v_offset")) { - saved_v_offset_ = settings.value("v_offset").toInt(); - set_v_offset(saved_v_offset_); - scroll_needs_defaults_ = false; - // Note: see eventFilter() for additional information - } - - settings_restored_ = true; -} - -vector< shared_ptr > View::time_items() const -{ - const vector> f(flags()); - vector> items(f.begin(), f.end()); - items.push_back(cursors_); - items.push_back(cursors_->first()); - items.push_back(cursors_->second()); - - for (auto trigger_marker : trigger_markers_) - items.push_back(trigger_marker); - - return items; -} - -double View::scale() const -{ - return scale_; -} - -void View::set_scale(double scale) -{ - if (scale_ != scale) { - scale_ = scale; - scale_changed(); - } -} - -const Timestamp& View::offset() const -{ - return offset_; -} - -void View::set_offset(const pv::util::Timestamp& offset) -{ - if (offset_ != offset) { - offset_ = offset; - offset_changed(); - } -} - -int View::owner_visual_v_offset() const -{ - return -scrollarea_->verticalScrollBar()->sliderPosition(); -} - -void View::set_v_offset(int offset) -{ - scrollarea_->verticalScrollBar()->setSliderPosition(offset); - header_->update(); - viewport_->update(); -} - -unsigned int View::depth() const -{ - return 0; -} - -pv::util::SIPrefix View::tick_prefix() const -{ - return tick_prefix_; -} - -void View::set_tick_prefix(pv::util::SIPrefix tick_prefix) -{ - if (tick_prefix_ != tick_prefix) { - tick_prefix_ = tick_prefix; - tick_prefix_changed(); - } -} - -unsigned int View::tick_precision() const -{ - return tick_precision_; -} - -void View::set_tick_precision(unsigned tick_precision) -{ - if (tick_precision_ != tick_precision) { - tick_precision_ = tick_precision; - tick_precision_changed(); - } -} - -const pv::util::Timestamp& View::tick_period() const -{ - return tick_period_; -} - -void View::set_tick_period(const pv::util::Timestamp& tick_period) -{ - if (tick_period_ != tick_period) { - tick_period_ = tick_period; - tick_period_changed(); - } -} - -TimeUnit View::time_unit() const -{ - return time_unit_; -} - -void View::set_time_unit(pv::util::TimeUnit time_unit) -{ - if (time_unit_ != time_unit) { - time_unit_ = time_unit; - time_unit_changed(); - } -} - -void View::zoom(double steps) -{ - zoom(steps, viewport_->width() / 2); -} - -void View::zoom(double steps, int offset) -{ - set_zoom(scale_ * pow(3.0 / 2.0, -steps), offset); -} - -void View::zoom_fit(bool gui_state) -{ - // Act as one-shot when stopped, toggle along with the GUI otherwise - if (session_.get_capture_state() == Session::Stopped) { - always_zoom_to_fit_ = false; - always_zoom_to_fit_changed(false); - } else { - always_zoom_to_fit_ = gui_state; - always_zoom_to_fit_changed(gui_state); - } - - const pair extents = get_time_extents(); - const Timestamp delta = extents.second - extents.first; - if (delta < Timestamp("1e-12")) - return; - - assert(viewport_); - const int w = viewport_->width(); - if (w <= 0) - return; - - const Timestamp scale = max(min(delta / w, MaxScale), MinScale); - set_scale_offset(scale.convert_to(), extents.first); -} - -void View::zoom_one_to_one() -{ - using pv::data::SignalData; - - // Make a set of all the visible data objects - set< shared_ptr > visible_data = get_visible_data(); - if (visible_data.empty()) - return; - - assert(viewport_); - const int w = viewport_->width(); - if (w <= 0) - return; - - set_zoom(1.0 / session_.get_samplerate(), w / 2); -} - -void View::set_scale_offset(double scale, const Timestamp& offset) -{ - // Disable sticky scrolling / always zoom to fit when acquisition runs - // and user drags the viewport - if ((scale_ == scale) && (offset_ != offset) && - (session_.get_capture_state() == Session::Running)) { - - if (sticky_scrolling_) { - sticky_scrolling_ = false; - sticky_scrolling_changed(false); - } - - if (always_zoom_to_fit_) { - always_zoom_to_fit_ = false; - always_zoom_to_fit_changed(false); - } - } - - set_scale(scale); - set_offset(offset); - - calculate_tick_spacing(); - - update_scroll(); - ruler_->update(); - viewport_->update(); -} - -set< shared_ptr > View::get_visible_data() const -{ - // Make a set of all the visible data objects - set< shared_ptr > visible_data; - for (const shared_ptr sig : signals_) - if (sig->enabled()) - visible_data.insert(sig->data()); - - return visible_data; -} - -pair View::get_time_extents() const -{ - boost::optional left_time, right_time; - const set< shared_ptr > visible_data = get_visible_data(); - for (const shared_ptr d : visible_data) { - const vector< shared_ptr > segments = d->segments(); - for (const shared_ptr &s : segments) { - double samplerate = s->samplerate(); - samplerate = (samplerate <= 0.0) ? 1.0 : samplerate; - - const Timestamp start_time = s->start_time(); - left_time = left_time ? - min(*left_time, start_time) : - start_time; - right_time = right_time ? - max(*right_time, start_time + d->max_sample_count() / samplerate) : - start_time + d->max_sample_count() / samplerate; - } - } - - if (!left_time || !right_time) - return make_pair(0, 0); - - assert(*left_time < *right_time); - return make_pair(*left_time, *right_time); -} - -void View::enable_show_sampling_points(bool state) -{ - (void)state; - - viewport_->update(); -} - -void View::enable_show_analog_minor_grid(bool state) -{ - (void)state; - - viewport_->update(); -} - -void View::enable_coloured_bg(bool state) -{ - coloured_bg_ = state; - viewport_->update(); -} - -bool View::coloured_bg() const -{ - return coloured_bg_; -} - -bool View::cursors_shown() const -{ - return show_cursors_; -} - -void View::show_cursors(bool show) -{ - show_cursors_ = show; - ruler_->update(); - viewport_->update(); -} - -void View::centre_cursors() -{ - const double time_width = scale_ * viewport_->width(); - cursors_->first()->set_time(offset_ + time_width * 0.4); - cursors_->second()->set_time(offset_ + time_width * 0.6); - ruler_->update(); - viewport_->update(); -} - -shared_ptr View::cursors() const -{ - return cursors_; -} - -void View::add_flag(const Timestamp& time) -{ - flags_.push_back(make_shared(*this, time, - QString("%1").arg(next_flag_text_))); - - next_flag_text_ = (next_flag_text_ >= 'Z') ? 'A' : - (next_flag_text_ + 1); - - time_item_appearance_changed(true, true); -} - -void View::remove_flag(shared_ptr flag) -{ - flags_.remove(flag); - time_item_appearance_changed(true, true); -} - -vector< shared_ptr > View::flags() const -{ - vector< shared_ptr > flags(flags_.begin(), flags_.end()); - stable_sort(flags.begin(), flags.end(), - [](const shared_ptr &a, const shared_ptr &b) { - return a->time() < b->time(); - }); - - return flags; -} - -const QPoint& View::hover_point() const -{ - return hover_point_; -} - -void View::restack_all_trace_tree_items() -{ - // Make a list of owners that is sorted from deepest first - const vector> items( - list_by_type()); - set< TraceTreeItemOwner* > owners; - for (const auto &r : items) - owners.insert(r->owner()); - vector< TraceTreeItemOwner* > sorted_owners(owners.begin(), owners.end()); - sort(sorted_owners.begin(), sorted_owners.end(), - [](const TraceTreeItemOwner* a, const TraceTreeItemOwner *b) { - return a->depth() > b->depth(); }); - - // Restack the items recursively - for (auto &o : sorted_owners) - o->restack_items(); - - // Animate the items to their destination - for (const auto &i : items) - i->animate_to_layout_v_offset(); -} - -void View::trigger_event(util::Timestamp location) -{ - trigger_markers_.push_back(make_shared(*this, location)); -} - -void View::get_scroll_layout(double &length, Timestamp &offset) const -{ - const pair extents = get_time_extents(); - length = ((extents.second - extents.first) / scale_).convert_to(); - offset = offset_ / scale_; -} - -void View::set_zoom(double scale, int offset) -{ - // Reset the "always zoom to fit" feature as the user changed the zoom - always_zoom_to_fit_ = false; - always_zoom_to_fit_changed(false); - - const Timestamp cursor_offset = offset_ + scale_ * offset; - const Timestamp new_scale = max(min(Timestamp(scale), MaxScale), MinScale); - const Timestamp new_offset = cursor_offset - new_scale * offset; - set_scale_offset(new_scale.convert_to(), new_offset); -} - -void View::calculate_tick_spacing() -{ - const double SpacingIncrement = 10.0f; - const double MinValueSpacing = 40.0f; - - // Figure out the highest numeric value visible on a label - const QSize areaSize = viewport_->size(); - const Timestamp max_time = max(fabs(offset_), - fabs(offset_ + scale_ * areaSize.width())); - - double min_width = SpacingIncrement; - double label_width, tick_period_width; - - QFontMetrics m(QApplication::font()); - - // Copies of the member variables with the same name, used in the calculation - // and written back afterwards, so that we don't emit signals all the time - // during the calculation. - pv::util::Timestamp tick_period = tick_period_; - pv::util::SIPrefix tick_prefix = tick_prefix_; - unsigned tick_precision = tick_precision_; - - do { - const double min_period = scale_ * min_width; - - const int order = (int)floorf(log10f(min_period)); - const pv::util::Timestamp order_decimal = - pow(pv::util::Timestamp(10), order); - - // Allow for a margin of error so that a scale unit of 1 can be used. - // Otherwise, for a SU of 1 the tick period will almost always be below - // the min_period by a small amount - and thus skipped in favor of 2. - // Note: margin assumes that SU[0] and SU[1] contain the smallest values - double tp_margin = (ScaleUnits[0] + ScaleUnits[1]) / 2.0; - double tp_with_margin; - unsigned int unit = 0; - - do { - tp_with_margin = order_decimal.convert_to() * - (ScaleUnits[unit++] + tp_margin); - } while (tp_with_margin < min_period && unit < countof(ScaleUnits)); - - tick_period = order_decimal * ScaleUnits[unit - 1]; - tick_prefix = static_cast( - (order - pv::util::exponent(pv::util::SIPrefix::yocto)) / 3); - - // Precision is the number of fractional digits required, not - // taking the prefix into account (and it must never be negative) - tick_precision = max(ceil(log10(1 / tick_period)).convert_to(), 0); - - tick_period_width = (tick_period / scale_).convert_to(); - - const QString label_text = Ruler::format_time_with_distance( - tick_period, max_time, tick_prefix, time_unit_, tick_precision); - - label_width = m.boundingRect(0, 0, INT_MAX, INT_MAX, - Qt::AlignLeft | Qt::AlignTop, label_text).width() + - MinValueSpacing; - - min_width += SpacingIncrement; - } while (tick_period_width < label_width); - - set_tick_period(tick_period); - set_tick_prefix(tick_prefix); - set_tick_precision(tick_precision); -} - -void View::adjust_top_margin() -{ - assert(viewport_); - - const QSize areaSize = viewport_->size(); - - const pair extents = v_extents(); - const int top_margin = owner_visual_v_offset() + extents.first; - const int trace_bottom = owner_visual_v_offset() + extents.first + extents.second; - - // Do we have empty space at the top while the last trace goes out of screen? - if ((top_margin > 0) && (trace_bottom > areaSize.height())) { - const int trace_height = extents.second - extents.first; - - // Center everything vertically if there is enough space - if (areaSize.height() >= trace_height) - set_v_offset(extents.first - - ((areaSize.height() - trace_height) / 2)); - else - // Remove the top margin to make as many traces fit on screen as possible - set_v_offset(extents.first); - } -} - -void View::update_scroll() -{ - assert(viewport_); - QScrollBar *hscrollbar = scrollarea_->horizontalScrollBar(); - QScrollBar *vscrollbar = scrollarea_->verticalScrollBar(); - - const QSize areaSize = viewport_->size(); - - // Set the horizontal scroll bar - double length = 0; - Timestamp offset; - get_scroll_layout(length, offset); - length = max(length - areaSize.width(), 0.0); - - int major_tick_distance = (tick_period_ / scale_).convert_to(); - - hscrollbar->setPageStep(areaSize.width() / 2); - hscrollbar->setSingleStep(major_tick_distance); - - updating_scroll_ = true; - - if (length < MaxScrollValue) { - hscrollbar->setRange(0, length); - hscrollbar->setSliderPosition(offset.convert_to()); - } else { - hscrollbar->setRange(0, MaxScrollValue); - hscrollbar->setSliderPosition( - (offset_ * MaxScrollValue / (scale_ * length)).convert_to()); - } - - updating_scroll_ = false; - - // Set the vertical scrollbar - vscrollbar->setPageStep(areaSize.height()); - vscrollbar->setSingleStep(areaSize.height() / 8); - - const pair extents = v_extents(); - - // Don't change the scrollbar range if there are no traces - if (extents.first != extents.second) - vscrollbar->setRange(extents.first - areaSize.height(), - extents.second); - - if (scroll_needs_defaults_) - set_scroll_default(); -} - -void View::reset_scroll() -{ - scrollarea_->verticalScrollBar()->setRange(0, 0); -} - -void View::set_scroll_default() -{ - assert(viewport_); - - const QSize areaSize = viewport_->size(); - - const pair extents = v_extents(); - const int trace_height = extents.second - extents.first; - - // Do all traces fit in the view? - if (areaSize.height() >= trace_height) - // Center all traces vertically - set_v_offset(extents.first - - ((areaSize.height() - trace_height) / 2)); - else - // Put the first trace at the top, letting the bottom ones overflow - set_v_offset(extents.first); -} - -bool View::header_was_shrunk() const -{ - const int header_pane_width = splitter_->sizes().front(); - const int header_width = header_->extended_size_hint().width(); - - // Allow for a slight margin of error so that we also accept - // slight differences when e.g. a label name change increased - // the overall width - return (header_pane_width < (header_width - 10)); -} - -void View::expand_header_to_fit() -{ - int splitter_area_width = 0; - for (int w : splitter_->sizes()) - splitter_area_width += w; - - // Make sure the header has enough horizontal space to show all labels fully - QList pane_sizes; - pane_sizes.push_back(header_->extended_size_hint().width()); - pane_sizes.push_back(splitter_area_width - header_->extended_size_hint().width()); - splitter_->setSizes(pane_sizes); -} - -void View::update_layout() -{ - update_scroll(); -} - -TraceTreeItemOwner* View::find_prevalent_trace_group( - const shared_ptr &group, - const unordered_map, shared_ptr > - &signal_map) -{ - assert(group); - - unordered_set owners; - vector owner_list; - - // Make a set and a list of all the owners - for (const auto &channel : group->channels()) { - for (auto entry : signal_map) { - if (entry.first->channel() == channel) { - TraceTreeItemOwner *const o = (entry.second)->owner(); - owner_list.push_back(o); - owners.insert(o); - } - } - } - - // Iterate through the list of owners, and find the most prevalent - size_t max_prevalence = 0; - TraceTreeItemOwner *prevalent_owner = nullptr; - for (TraceTreeItemOwner *owner : owners) { - const size_t prevalence = count_if( - owner_list.begin(), owner_list.end(), - [&](TraceTreeItemOwner *o) { return o == owner; }); - if (prevalence > max_prevalence) { - max_prevalence = prevalence; - prevalent_owner = owner; - } - } - - return prevalent_owner; -} - -vector< shared_ptr > View::extract_new_traces_for_channels( - const vector< shared_ptr > &channels, - const unordered_map, shared_ptr > - &signal_map, - set< shared_ptr > &add_list) -{ - vector< shared_ptr > filtered_traces; - - for (const auto &channel : channels) { - for (auto entry : signal_map) { - if (entry.first->channel() == channel) { - shared_ptr trace = entry.second; - const auto list_iter = add_list.find(trace); - if (list_iter == add_list.end()) - continue; - - filtered_traces.push_back(trace); - add_list.erase(list_iter); - } - } - } - - return filtered_traces; -} - -void View::determine_time_unit() -{ - // Check whether we know the sample rate and hence can use time as the unit - if (time_unit_ == util::TimeUnit::Samples) { - // Check all signals but... - for (const shared_ptr signal : signals_) { - const shared_ptr data = signal->data(); - - // ...only check first segment of each - const vector< shared_ptr > segments = data->segments(); - if (!segments.empty()) - if (segments[0]->samplerate()) { - set_time_unit(util::TimeUnit::Time); - break; - } - } - } -} - -bool View::eventFilter(QObject *object, QEvent *event) -{ - const QEvent::Type type = event->type(); - if (type == QEvent::MouseMove) { - - const QMouseEvent *const mouse_event = (QMouseEvent*)event; - if (object == viewport_) - hover_point_ = mouse_event->pos(); - else if (object == ruler_) - hover_point_ = QPoint(mouse_event->x(), 0); - else if (object == header_) - hover_point_ = QPoint(0, mouse_event->y()); - else - hover_point_ = QPoint(-1, -1); - - hover_point_changed(); - - } else if (type == QEvent::Leave) { - hover_point_ = QPoint(-1, -1); - hover_point_changed(); - } else if (type == QEvent::Show) { - - // This is somewhat of a hack, unfortunately. We cannot use - // set_v_offset() from within restore_settings() as the view - // at that point is neither visible nor properly sized. - // This is the least intrusive workaround I could come up - // with: set the vertical offset (or scroll defaults) when - // the view is shown, which happens after all widgets were - // resized to their final sizes. - update_layout(); - - if (!settings_restored_) - expand_header_to_fit(); - - if (scroll_needs_defaults_) { - set_scroll_default(); - scroll_needs_defaults_ = false; - } - - if (saved_v_offset_) { - set_v_offset(saved_v_offset_); - saved_v_offset_ = 0; - } - } - - return QObject::eventFilter(object, event); -} - -void View::resizeEvent(QResizeEvent* event) -{ - // Only adjust the top margin if we shrunk vertically - if (event->size().height() < event->oldSize().height()) - adjust_top_margin(); - - update_layout(); -} - -void View::row_item_appearance_changed(bool label, bool content) -{ - if (label) - header_->update(); - if (content) - viewport_->update(); -} - -void View::time_item_appearance_changed(bool label, bool content) -{ - if (label) { - ruler_->update(); - - // Make sure the header pane width is updated, too - update_layout(); - } - - if (content) - viewport_->update(); -} - -void View::extents_changed(bool horz, bool vert) -{ - sticky_events_ |= - (horz ? TraceTreeItemHExtentsChanged : 0) | - (vert ? TraceTreeItemVExtentsChanged : 0); - - lazy_event_handler_.start(); -} - -void View::on_splitter_moved() -{ - // Setting the maximum width of the header widget doesn't work as - // expected because the splitter would allow the user to make the - // pane wider than that, creating empty space as a result. - // To make this work, we stricly enforce the maximum width by - // expanding the header unless the user shrunk it on purpose. - // As we're then setting the width of the header pane, we set the - // splitter to the maximum allowed position. - if (!header_was_shrunk()) - expand_header_to_fit(); -} - -void View::h_scroll_value_changed(int value) -{ - if (updating_scroll_) - return; - - // Disable sticky scrolling when user moves the horizontal scroll bar - // during a running acquisition - if (sticky_scrolling_ && (session_.get_capture_state() == Session::Running)) { - sticky_scrolling_ = false; - sticky_scrolling_changed(false); - } - - const int range = scrollarea_->horizontalScrollBar()->maximum(); - if (range < MaxScrollValue) - set_offset(scale_ * value); - else { - double length = 0; - Timestamp offset; - get_scroll_layout(length, offset); - set_offset(scale_ * length * value / MaxScrollValue); - } - - ruler_->update(); - viewport_->update(); -} - -void View::v_scroll_value_changed() -{ - header_->update(); - viewport_->update(); -} - -void View::signals_changed() -{ - using sigrok::Channel; - - vector< shared_ptr > channels; - shared_ptr sr_dev; - - // Do we need to set the vertical scrollbar to its default position later? - // We do if there are no traces, i.e. the scroll bar has no range set - bool reset_scrollbar = - (scrollarea_->verticalScrollBar()->minimum() == - scrollarea_->verticalScrollBar()->maximum()); - - if (!session_.device()) { - reset_scroll(); - signals_.clear(); - } else { - sr_dev = session_.device()->device(); - assert(sr_dev); - channels = sr_dev->channels(); - } - - vector< shared_ptr > new_top_level_items; - - // Make a list of traces that are being added, and a list of traces - // that are being removed - const vector> prev_trace_list = list_by_type(); - const set> prev_traces( - prev_trace_list.begin(), prev_trace_list.end()); - - set< shared_ptr > traces(signals_.begin(), signals_.end()); - -#ifdef ENABLE_DECODE - traces.insert(decode_traces_.begin(), decode_traces_.end()); -#endif - - set< shared_ptr > add_traces; - set_difference(traces.begin(), traces.end(), - prev_traces.begin(), prev_traces.end(), - inserter(add_traces, add_traces.begin())); - - set< shared_ptr > remove_traces; - set_difference(prev_traces.begin(), prev_traces.end(), - traces.begin(), traces.end(), - inserter(remove_traces, remove_traces.begin())); - - // Make a look-up table of sigrok Channels to pulseview Signals - unordered_map, shared_ptr > - signal_map; - for (const shared_ptr &sig : signals_) - signal_map[sig->base()] = sig; - - // Populate channel groups - if (sr_dev) - for (auto entry : sr_dev->channel_groups()) { - const shared_ptr &group = entry.second; - - if (group->channels().size() <= 1) - continue; - - // Find best trace group to add to - TraceTreeItemOwner *owner = find_prevalent_trace_group( - group, signal_map); - - // If there is no trace group, create one - shared_ptr new_trace_group; - if (!owner) { - new_trace_group.reset(new TraceGroup()); - owner = new_trace_group.get(); - } - - // Extract traces for the trace group, removing them from - // the add list - const vector< shared_ptr > new_traces_in_group = - extract_new_traces_for_channels(group->channels(), - signal_map, add_traces); - - // Add the traces to the group - const pair prev_v_extents = owner->v_extents(); - int offset = prev_v_extents.second - prev_v_extents.first; - for (shared_ptr trace : new_traces_in_group) { - assert(trace); - owner->add_child_item(trace); - - const pair extents = trace->v_extents(); - if (trace->enabled()) - offset += -extents.first; - trace->force_to_v_offset(offset); - if (trace->enabled()) - offset += extents.second; - } - - if (new_trace_group) { - // Assign proper vertical offsets to each channel in the group - new_trace_group->restack_items(); - - // If this is a new group, enqueue it in the new top level - // items list - if (!new_traces_in_group.empty()) - new_top_level_items.push_back(new_trace_group); - } - } - - // Enqueue the remaining logic channels in a group - vector< shared_ptr > logic_channels; - copy_if(channels.begin(), channels.end(), back_inserter(logic_channels), - [](const shared_ptr& c) { - return c->type() == sigrok::ChannelType::LOGIC; }); - - const vector< shared_ptr > non_grouped_logic_signals = - extract_new_traces_for_channels(logic_channels, signal_map, add_traces); - - if (non_grouped_logic_signals.size() > 0) { - const shared_ptr non_grouped_trace_group( - make_shared()); - for (shared_ptr trace : non_grouped_logic_signals) - non_grouped_trace_group->add_child_item(trace); - - non_grouped_trace_group->restack_items(); - new_top_level_items.push_back(non_grouped_trace_group); - } - - // Enqueue the remaining channels as free ungrouped traces - const vector< shared_ptr > new_top_level_signals = - extract_new_traces_for_channels(channels, signal_map, add_traces); - new_top_level_items.insert(new_top_level_items.end(), - new_top_level_signals.begin(), new_top_level_signals.end()); - - // Enqueue any remaining traces i.e. decode traces - new_top_level_items.insert(new_top_level_items.end(), - add_traces.begin(), add_traces.end()); - - // Remove any removed traces - for (shared_ptr trace : remove_traces) { - TraceTreeItemOwner *const owner = trace->owner(); - assert(owner); - owner->remove_child_item(trace); - } - - // Remove any empty trace groups - for (shared_ptr group : list_by_type()) - if (group->child_items().size() == 0) { - remove_child_item(group); - group.reset(); - } - - // Add and position the pending top levels items - int offset = v_extents().second; - for (auto item : new_top_level_items) { - add_child_item(item); - - // Position the item after the last item or at the top if there is none - const pair extents = item->v_extents(); - - if (item->enabled()) - offset += -extents.first; - - item->force_to_v_offset(offset); - - if (item->enabled()) - offset += extents.second; - } - - - if (!new_top_level_items.empty()) - // Expand the header pane because the header should become fully - // visible when new signals are added - expand_header_to_fit(); - - update_layout(); - - header_->update(); - viewport_->update(); - - if (reset_scrollbar) - set_scroll_default(); -} - -void View::capture_state_updated(int state) -{ - if (state == Session::Running) { - set_time_unit(util::TimeUnit::Samples); - - trigger_markers_.clear(); - - // Activate "always zoom to fit" if the setting is enabled and we're - // the main view of this session (other trace views may be used for - // zooming and we don't want to mess them up) - GlobalSettings settings; - bool state = settings.value(GlobalSettings::Key_View_AlwaysZoomToFit).toBool(); - if (is_main_view_ && state) { - always_zoom_to_fit_ = true; - always_zoom_to_fit_changed(always_zoom_to_fit_); - } - - // Enable sticky scrolling if the setting is enabled - sticky_scrolling_ = settings.value(GlobalSettings::Key_View_StickyScrolling).toBool(); - } - - if (state == Session::Stopped) { - // After acquisition has stopped we need to re-calculate the ticks once - // as it's otherwise done when the user pans or zooms, which is too late - calculate_tick_spacing(); - - // Reset "always zoom to fit", the acquisition has stopped - if (always_zoom_to_fit_) { - // Perform a final zoom-to-fit before disabling - zoom_fit(always_zoom_to_fit_); - always_zoom_to_fit_ = false; - always_zoom_to_fit_changed(always_zoom_to_fit_); - } - } -} - -void View::perform_delayed_view_update() -{ - if (always_zoom_to_fit_) { - zoom_fit(true); - } else if (sticky_scrolling_) { - // Make right side of the view sticky - double length = 0; - Timestamp offset; - get_scroll_layout(length, offset); - - const QSize areaSize = viewport_->size(); - length = max(length - areaSize.width(), 0.0); - - set_offset(scale_ * length); - } - - determine_time_unit(); - update_scroll(); - ruler_->update(); - viewport_->update(); -} - -void View::process_sticky_events() -{ - if (sticky_events_ & TraceTreeItemHExtentsChanged) - update_layout(); - if (sticky_events_ & TraceTreeItemVExtentsChanged) { - restack_all_trace_tree_items(); - update_scroll(); - } - - // Clear the sticky events - sticky_events_ = 0; -} - -void View::on_hover_point_changed() -{ - const vector> trace_tree_items( - list_by_type()); - for (shared_ptr r : trace_tree_items) - r->hover_point_changed(); -} - -} // namespace TraceView -} // namespace views -} // namespace pv