X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fview%2Fview.cpp;h=7f9caa4cb50e69fb63f50e621d5dad01adbebc99;hp=e6be30e0680b48670a885fb0630d25209b9953b7;hb=48257a69ffad409c9893605d99cd6e15161dff4f;hpb=1e124d4b75b7b6b6a87b93a4e175d669909c2e04 diff --git a/pv/view/view.cpp b/pv/view/view.cpp index e6be30e0..7f9caa4c 100644 --- a/pv/view/view.cpp +++ b/pv/view/view.cpp @@ -32,6 +32,8 @@ #include #include +#include + #include #include #include @@ -60,9 +62,11 @@ using boost::shared_mutex; using pv::data::SignalData; using pv::data::Segment; -using pv::util::format_time; using pv::util::TimeUnit; +using pv::util::Timestamp; +using std::back_inserter; +using std::copy_if; using std::deque; using std::dynamic_pointer_cast; using std::inserter; @@ -70,6 +74,7 @@ using std::list; using std::lock_guard; using std::max; using std::make_pair; +using std::make_shared; using std::min; using std::pair; using std::set; @@ -83,8 +88,8 @@ using std::weak_ptr; namespace pv { namespace view { -const double View::MaxScale = 1e9; -const double View::MinScale = 1e-15; +const Timestamp View::MaxScale("1e9"); +const Timestamp View::MinScale("1e-12"); const int View::MaxScrollValue = INT_MAX / 2; const int View::MaxViewAutoUpdateRate = 25; // No more than 25 Hz with sticky scrolling @@ -102,10 +107,10 @@ View::View(Session &session, QWidget *parent) : updating_scroll_(false), sticky_scrolling_(false), // Default setting is set in MainWindow::setup_ui() always_zoom_to_fit_(false), - tick_period_(0.0), - tick_prefix_(0), + tick_period_(0), + tick_prefix_(pv::util::SIPrefix::yocto), tick_precision_(0), - time_unit_(util::Time), + time_unit_(util::TimeUnit::Time), show_cursors_(false), cursors_(new CursorPair(*this)), next_flag_text_('A'), @@ -210,11 +215,27 @@ double View::scale() const return scale_; } -double View::offset() const +void View::set_scale(double scale) +{ + if (scale_ != scale) { + scale_ = scale; + Q_EMIT scale_changed(); + } +} + +const Timestamp& View::offset() const { return offset_; } +void View::set_offset(const pv::util::Timestamp& offset) +{ + if (offset_ != offset) { + offset_ = offset; + Q_EMIT offset_changed(); + } +} + int View::owner_visual_v_offset() const { return -verticalScrollBar()->sliderPosition(); @@ -232,26 +253,58 @@ unsigned int View::depth() const return 0; } -unsigned int View::tick_prefix() const +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; + Q_EMIT tick_prefix_changed(); + } +} + unsigned int View::tick_precision() const { return tick_precision_; } -double View::tick_period() const +void View::set_tick_precision(unsigned tick_precision) +{ + if (tick_precision_ != tick_precision) { + tick_precision_ = tick_precision; + Q_EMIT 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; + Q_EMIT 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; + Q_EMIT time_unit_changed(); + } +} + void View::zoom(double steps) { zoom(steps, viewport_->width() / 2); @@ -273,9 +326,9 @@ void View::zoom_fit(bool gui_state) always_zoom_to_fit_changed(gui_state); } - const pair extents = get_time_extents(); - const double delta = extents.second - extents.first; - if (delta < 1e-12) + const pair extents = get_time_extents(); + const Timestamp delta = extents.second - extents.first; + if (delta < Timestamp("1e-12")) return; assert(viewport_); @@ -283,8 +336,8 @@ void View::zoom_fit(bool gui_state) if (w <= 0) return; - const double scale = max(min(delta / w, MaxScale), MinScale); - set_scale_offset(scale, extents.first); + const Timestamp scale = max(min(delta / w, MaxScale), MinScale); + set_scale_offset(scale.convert_to(), extents.first); } void View::zoom_one_to_one() @@ -296,27 +349,15 @@ void View::zoom_one_to_one() if (visible_data.empty()) return; - double samplerate = 0.0; - for (const shared_ptr d : visible_data) { - assert(d); - const vector< shared_ptr > segments = - d->segments(); - for (const shared_ptr &s : segments) - samplerate = max(samplerate, s->samplerate()); - } - - if (samplerate == 0.0) - return; - assert(viewport_); const int w = viewport_->width(); if (w <= 0) return; - set_zoom(1.0 / samplerate, w / 2); + set_zoom(1.0 / session_.get_samplerate(), w / 2); } -void View::set_scale_offset(double scale, double offset) +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 @@ -334,21 +375,19 @@ void View::set_scale_offset(double scale, double offset) } } - scale_ = scale; - offset_ = offset; + set_scale(scale); + set_offset(offset); calculate_tick_spacing(); update_scroll(); ruler_->update(); viewport_->update(); - scale_offset_changed(); } set< shared_ptr > View::get_visible_data() const { - shared_lock lock(session().signals_mutex()); - const unordered_set< shared_ptr > &sigs(session().signals()); + const unordered_set< shared_ptr > sigs(session().signals()); // Make a set of all the visible data objects set< shared_ptr > visible_data; @@ -359,9 +398,9 @@ set< shared_ptr > View::get_visible_data() const return visible_data; } -pair View::get_time_extents() const +pair View::get_time_extents() const { - double left_time = DBL_MAX, right_time = DBL_MIN; + boost::optional left_time, right_time; const set< shared_ptr > visible_data = get_visible_data(); for (const shared_ptr d : visible_data) { @@ -371,18 +410,21 @@ pair View::get_time_extents() const double samplerate = s->samplerate(); samplerate = (samplerate <= 0.0) ? 1.0 : samplerate; - const double start_time = s->start_time(); - left_time = min(left_time, start_time); - right_time = max(right_time, start_time + - d->max_sample_count() / 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 == DBL_MAX && right_time == DBL_MIN) - return make_pair(0.0, 0.0); + if (!left_time || !right_time) + return make_pair(0, 0); - assert(left_time < right_time); - return make_pair(left_time, right_time); + assert(*left_time < *right_time); + return make_pair(*left_time, *right_time); } void View::enable_sticky_scrolling(bool state) @@ -416,12 +458,18 @@ std::shared_ptr View::cursors() const return cursors_; } -void View::add_flag(double time) +void View::add_flag(const Timestamp& time) { flags_.push_back(shared_ptr(new Flag(*this, time, QString("%1").arg(next_flag_text_)))); + next_flag_text_ = (next_flag_text_ >= 'Z') ? 'A' : (next_flag_text_ + 1); + + // Skip 'T' (for trigger) as it's treated special + if (next_flag_text_ == 'T') + next_flag_text_ += 1; + time_item_appearance_changed(true, true); } @@ -454,13 +502,17 @@ void View::update_viewport() header_->update(); } -void View::restack_all_row_items() +void View::restack_all_trace_tree_items() { // Make a list of owners that is sorted from deepest first - const auto owners = list_row_item_owners(); - vector< RowItemOwner* > sorted_owners(owners.begin(), owners.end()); + 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 RowItemOwner* a, const RowItemOwner *b) { + [](const TraceTreeItemOwner* a, const TraceTreeItemOwner *b) { return a->depth() > b->depth(); }); // Restack the items recursively @@ -468,14 +520,24 @@ void View::restack_all_row_items() o->restack_items(); // Animate the items to their destination - for (const auto &r : *this) - r->animate_to_layout_v_offset(); + for (const auto &i : items) + i->animate_to_layout_v_offset(); } -void View::get_scroll_layout(double &length, double &offset) const +void View::trigger_event(util::Timestamp location) { - const pair extents = get_time_extents(); - length = (extents.second - extents.first) / scale_; + char next_flag_text = next_flag_text_; + + next_flag_text_ = 'T'; + add_flag(location); + + next_flag_text_ = next_flag_text; +} + +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_; } @@ -485,20 +547,20 @@ void View::set_zoom(double scale, int offset) always_zoom_to_fit_ = false; always_zoom_to_fit_changed(false); - const double cursor_offset = offset_ + scale_ * offset; - const double new_scale = max(min(scale, MaxScale), MinScale); - const double new_offset = cursor_offset - new_scale * offset; - set_scale_offset(new_scale, new_offset); + 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 = 32.0f; - const double MinValueSpacing = 32.0f; + 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 double max_time = max(fabs(offset_), + const Timestamp max_time = max(fabs(offset_), fabs(offset_ + scale_ * areaSize.width())); double min_width = SpacingIncrement; @@ -506,37 +568,56 @@ void View::calculate_tick_spacing() 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 double order_decimal = pow(10.0, order); - + 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 { - tick_period_ = order_decimal * ScaleUnits[unit++]; - } while (tick_period_ < min_period && - unit < countof(ScaleUnits)); + tp_with_margin = order_decimal.convert_to() * + (ScaleUnits[unit++] + tp_margin); + } while (tp_with_margin < min_period && unit < countof(ScaleUnits)); - tick_prefix_ = (order - pv::util::FirstSIPrefixPower) / 3; + 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_ = std::max((int)ceil(log10f(1 / tick_period_)), 0); + tick_precision = std::max(ceil(log10(1 / tick_period)).convert_to(), 0); - tick_period_width = tick_period_ / scale_; + tick_period_width = (tick_period / scale_).convert_to(); - const QString label_text = - format_time(max_time, tick_prefix_, time_unit_, tick_precision_); + 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::update_scroll() @@ -546,11 +627,12 @@ void View::update_scroll() const QSize areaSize = viewport_->size(); // Set the horizontal scroll bar - double length = 0, offset = 0; + double length = 0; + Timestamp offset; get_scroll_layout(length, offset); length = max(length - areaSize.width(), 0.0); - int major_tick_distance = tick_period_ / scale_; + int major_tick_distance = (tick_period_ / scale_).convert_to(); horizontalScrollBar()->setPageStep(areaSize.width() / 2); horizontalScrollBar()->setSingleStep(major_tick_distance); @@ -559,11 +641,11 @@ void View::update_scroll() if (length < MaxScrollValue) { horizontalScrollBar()->setRange(0, length); - horizontalScrollBar()->setSliderPosition(offset); + horizontalScrollBar()->setSliderPosition(offset.convert_to()); } else { horizontalScrollBar()->setRange(0, MaxScrollValue); horizontalScrollBar()->setSliderPosition( - offset_ * MaxScrollValue / (scale_ * length)); + (offset_ * MaxScrollValue / (scale_ * length)).convert_to()); } updating_scroll_ = false; @@ -602,15 +684,15 @@ QRectF View::label_rect(const QRectF &rect) return QRectF(); } -RowItemOwner* View::find_prevalent_trace_group( +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; + unordered_set owners; + vector owner_list; // Make a set and a list of all the owners for (const auto &channel : group->channels()) { @@ -618,18 +700,18 @@ RowItemOwner* View::find_prevalent_trace_group( if (iter == signal_map.end()) continue; - RowItemOwner *const o = (*iter).second->owner(); + TraceTreeItemOwner *const o = (*iter).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; - RowItemOwner *prevalent_owner = nullptr; - for (RowItemOwner *owner : owners) { + TraceTreeItemOwner *prevalent_owner = nullptr; + for (TraceTreeItemOwner *owner : owners) { const size_t prevalence = std::count_if( owner_list.begin(), owner_list.end(), - [&](RowItemOwner *o) { return o == owner; }); + [&](TraceTreeItemOwner *o) { return o == owner; }); if (prevalence > max_prevalence) { max_prevalence = prevalence; prevalent_owner = owner; @@ -668,9 +750,8 @@ vector< shared_ptr > View::extract_new_traces_for_channels( void View::determine_time_unit() { // Check whether we know the sample rate and hence can use time as the unit - if (time_unit_ == util::Samples) { - shared_lock lock(session().signals_mutex()); - const unordered_set< shared_ptr > &sigs(session().signals()); + if (time_unit_ == util::TimeUnit::Samples) { + const unordered_set< shared_ptr > sigs(session().signals()); // Check all signals but... for (const shared_ptr signal : sigs) { @@ -680,7 +761,7 @@ void View::determine_time_unit() const vector< shared_ptr > segments = data->segments(); if (!segments.empty()) if (segments[0]->samplerate()) { - time_unit_ = util::Time; + set_time_unit(util::TimeUnit::Time); break; } } @@ -755,8 +836,8 @@ void View::time_item_appearance_changed(bool label, bool content) void View::extents_changed(bool horz, bool vert) { sticky_events_ |= - (horz ? RowItemHExtentsChanged : 0) | - (vert ? RowItemVExtentsChanged : 0); + (horz ? TraceTreeItemHExtentsChanged : 0) | + (vert ? TraceTreeItemVExtentsChanged : 0); lazy_event_handler_.start(); } @@ -774,11 +855,12 @@ void View::h_scroll_value_changed(int value) const int range = horizontalScrollBar()->maximum(); if (range < MaxScrollValue) - offset_ = scale_ * value; + set_offset(scale_ * value); else { - double length = 0, offset; + double length = 0; + Timestamp offset; get_scroll_layout(length, offset); - offset_ = scale_ * length * value / MaxScrollValue; + set_offset(scale_ * length * value / MaxScrollValue); } ruler_->update(); @@ -793,7 +875,9 @@ void View::v_scroll_value_changed() void View::signals_changed() { - vector< shared_ptr > new_top_level_items; + using sigrok::Channel; + + vector< shared_ptr > new_top_level_items; const auto device = session_.device(); if (!device) @@ -802,12 +886,16 @@ void View::signals_changed() shared_ptr sr_dev = device->device(); assert(sr_dev); + const vector< shared_ptr > channels( + sr_dev->channels()); + // Make a list of traces that are being added, and a list of traces // that are being removed - const set> prev_traces = list_by_type(); + const vector> prev_trace_list = list_by_type(); + const set> prev_traces( + prev_trace_list.begin(), prev_trace_list.end()); - shared_lock lock(session_.signals_mutex()); - const unordered_set< shared_ptr > &sigs(session_.signals()); + const unordered_set< shared_ptr > sigs(session_.signals()); set< shared_ptr > traces(sigs.begin(), sigs.end()); @@ -842,7 +930,7 @@ void View::signals_changed() continue; // Find best trace group to add to - RowItemOwner *owner = find_prevalent_trace_group( + TraceTreeItemOwner *owner = find_prevalent_trace_group( group, signal_map); // If there is no trace group, create one @@ -879,9 +967,23 @@ void View::signals_changed() 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); + 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); + 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(sr_dev->channels(), + 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()); @@ -892,7 +994,7 @@ void View::signals_changed() // Remove any removed traces for (shared_ptr trace : remove_traces) { - RowItemOwner *const owner = trace->owner(); + TraceTreeItemOwner *const owner = trace->owner(); assert(owner); owner->remove_child_item(trace); } @@ -919,14 +1021,20 @@ void View::signals_changed() void View::capture_state_updated(int state) { - // Reset "always zoom to fit" when we change to the stopped state - if (always_zoom_to_fit_ && (state == Session::Stopped)) { - always_zoom_to_fit_ = false; - always_zoom_to_fit_changed(false); - } - if (state == Session::Running) - time_unit_ = util::Samples; + set_time_unit(util::TimeUnit::Samples); + + 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_) { + always_zoom_to_fit_ = false; + always_zoom_to_fit_changed(false); + } + } } void View::data_updated() @@ -949,13 +1057,14 @@ void View::perform_delayed_view_update() if (sticky_scrolling_) { // Make right side of the view sticky - double length = 0, offset; + double length = 0; + Timestamp offset; get_scroll_layout(length, offset); const QSize areaSize = viewport_->size(); length = max(length - areaSize.width(), 0.0); - offset_ = scale_ * length; + set_offset(scale_ * length); } determine_time_unit(); @@ -966,10 +1075,10 @@ void View::perform_delayed_view_update() void View::process_sticky_events() { - if (sticky_events_ & RowItemHExtentsChanged) + if (sticky_events_ & TraceTreeItemHExtentsChanged) update_layout(); - if (sticky_events_ & RowItemVExtentsChanged) { - restack_all_row_items(); + if (sticky_events_ & TraceTreeItemVExtentsChanged) { + restack_all_trace_tree_items(); update_scroll(); } @@ -979,7 +1088,9 @@ void View::process_sticky_events() void View::on_hover_point_changed() { - for (shared_ptr r : *this) + const vector> trace_tree_items( + list_by_type()); + for (shared_ptr r : trace_tree_items) r->hover_point_changed(); }