X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fview%2Fview.cpp;h=6c3f896cfd9ff94f77cdc9c5a992af281514f969;hp=032546dba034eda4cea63cc3f60489127cd28d9d;hb=c1a6513b912e90ebcca2dba4453aa03fbddcfb58;hpb=d40f4db76fc8120fcd54ace8c6fce63387e025ca diff --git a/pv/view/view.cpp b/pv/view/view.cpp index 032546db..6c3f896c 100644 --- a/pv/view/view.cpp +++ b/pv/view/view.cpp @@ -14,8 +14,7 @@ * 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, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * along with this program; if not, see . */ #ifdef ENABLE_DECODE @@ -28,103 +27,173 @@ #include #include #include +#include #include -#include #include +#include +#include +#include + #include #include #include #include #include +#include #include -#include "decodetrace.hpp" +#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/session.hpp" -#include "pv/devices/device.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" -using boost::shared_lock; -using boost::shared_mutex; +#ifdef ENABLE_DECODE +#include "decodetrace.hpp" +#endif using pv::data::SignalData; using pv::data::Segment; -using pv::util::format_time; using pv::util::TimeUnit; +using pv::util::Timestamp; -using std::deque; +using std::back_inserter; +using std::copy_if; +using std::count_if; using std::dynamic_pointer_cast; using std::inserter; -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; using std::set_difference; using std::shared_ptr; +using std::stringstream; using std::unordered_map; using std::unordered_set; using std::vector; -using std::weak_ptr; namespace pv { -namespace view { +namespace views { +namespace TraceView { -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 const int View::ScaleUnits[3] = {1, 2, 5}; -View::View(Session &session, QWidget *parent) : - QAbstractScrollArea(parent), - session_(session), - viewport_(new Viewport(*this)), - ruler_(new Ruler(*this)), - header_(new Header(*this)), + +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), 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'), - hover_point_(-1, -1) + trigger_markers_(), + hover_point_(-1, -1), + scroll_needs_defaults_(false), + saved_v_offset_(0) { - connect(horizontalScrollBar(), SIGNAL(valueChanged(int)), + 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(verticalScrollBar(), SIGNAL(valueChanged(int)), + connect(scrollarea_->verticalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(v_scroll_value_changed())); - connect(&session_, SIGNAL(signals_changed()), - this, SLOT(signals_changed())); - connect(&session_, SIGNAL(capture_state_changed(int)), - this, SLOT(capture_state_updated(int))); - connect(&session_, SIGNAL(data_received()), - this, SLOT(data_updated())); - connect(&session_, SIGNAL(frame_ended()), - this, SLOT(data_updated())); - connect(header_, SIGNAL(selection_changed()), ruler_, SLOT(clear_selection())); connect(ruler_, SIGNAL(selection_changed()), @@ -142,17 +211,6 @@ View::View(Session &session, QWidget *parent) : this, SLOT(process_sticky_events())); lazy_event_handler_.setSingleShot(true); - connect(&delayed_view_updater_, SIGNAL(timeout()), - this, SLOT(perform_delayed_view_update())); - delayed_view_updater_.setSingleShot(true); - delayed_view_updater_.setInterval(1000 / MaxViewAutoUpdateRate); - - setViewport(viewport_); - - viewport_->installEventFilter(this); - ruler_->installEventFilter(this); - header_->installEventFilter(this); - // Trigger the initial event manually. The default device has signals // which were created before this object came into being signals_changed(); @@ -175,6 +233,47 @@ 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; @@ -195,6 +294,57 @@ 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()); + + 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); + } + + 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 + } +} + vector< shared_ptr > View::time_items() const { const vector> f(flags()); @@ -202,6 +352,10 @@ vector< shared_ptr > View::time_items() const 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; } @@ -210,19 +364,35 @@ 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(); + return -scrollarea_->verticalScrollBar()->sliderPosition(); } void View::set_v_offset(int offset) { - verticalScrollBar()->setSliderPosition(offset); + scrollarea_->verticalScrollBar()->setSliderPosition(offset); header_->update(); viewport_->update(); } @@ -232,26 +402,58 @@ 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); @@ -259,7 +461,7 @@ void View::zoom(double steps) void View::zoom(double steps, int offset) { - set_zoom(scale_ * pow(3.0/2.0, -steps), offset); + set_zoom(scale_ * pow(3.0 / 2.0, -steps), offset); } void View::zoom_fit(bool gui_state) @@ -273,9 +475,9 @@ 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 +485,8 @@ 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 +498,15 @@ 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 @@ -334,60 +524,77 @@ 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()); - // Make a set of all the visible data objects set< shared_ptr > visible_data; - for (const shared_ptr sig : sigs) + for (const shared_ptr sig : signals_) if (sig->enabled()) visible_data.insert(sig->data()); 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) - { - const vector< shared_ptr > segments = - d->segments(); + 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 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) +void View::enable_show_sampling_points(bool state) { - sticky_scrolling_ = 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 @@ -411,29 +618,31 @@ void View::centre_cursors() viewport_->update(); } -std::shared_ptr View::cursors() const +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_)))); + 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(std::shared_ptr flag) +void View::remove_flag(shared_ptr flag) { flags_.remove(flag); time_item_appearance_changed(true, true); } -vector< std::shared_ptr > View::flags() const +vector< shared_ptr > View::flags() const { - vector< std::shared_ptr > flags(flags_.begin(), flags_.end()); + 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(); @@ -447,20 +656,17 @@ const QPoint& View::hover_point() const return hover_point_; } -void View::update_viewport() -{ - assert(viewport_); - viewport_->update(); - 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 +674,19 @@ 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::trigger_event(util::Timestamp location) +{ + trigger_markers_.push_back(make_shared(*this, location)); } -void View::get_scroll_layout(double &length, double &offset) const +void View::get_scroll_layout(double &length, Timestamp &offset) const { - const pair extents = get_time_extents(); - length = (extents.second - extents.first) / scale_; + const pair extents = get_time_extents(); + length = ((extents.second - extents.first) / scale_).convert_to(); offset = offset_ / scale_; } @@ -485,146 +696,228 @@ 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 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 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 = 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(offset_, 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::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, 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); + hscrollbar->setPageStep(areaSize.width() / 2); + hscrollbar->setSingleStep(major_tick_distance); updating_scroll_ = true; if (length < MaxScrollValue) { - horizontalScrollBar()->setRange(0, length); - horizontalScrollBar()->setSliderPosition(offset); + hscrollbar->setRange(0, length); + hscrollbar->setSliderPosition(offset.convert_to()); } else { - horizontalScrollBar()->setRange(0, MaxScrollValue); - horizontalScrollBar()->setSliderPosition( - offset_ * MaxScrollValue / (scale_ * length)); + hscrollbar->setRange(0, MaxScrollValue); + hscrollbar->setSliderPosition( + (offset_ * MaxScrollValue / (scale_ * length)).convert_to()); } updating_scroll_ = false; // Set the vertical scrollbar - verticalScrollBar()->setPageStep(areaSize.height()); - verticalScrollBar()->setSingleStep(areaSize.height() / 8); + vscrollbar->setPageStep(areaSize.height()); + vscrollbar->setSingleStep(areaSize.height() / 8); const pair extents = v_extents(); - verticalScrollBar()->setRange(extents.first - (areaSize.height() / 2), - extents.second - (areaSize.height() / 2)); + + // 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::update_layout() +void View::reset_scroll() { - setViewportMargins( - header_->sizeHint().width() - pv::view::Header::BaselineOffset, - ruler_->sizeHint().height(), 0, 0); - ruler_->setGeometry(viewport_->x(), 0, - viewport_->width(), ruler_->extended_size_hint().height()); - header_->setGeometry(0, viewport_->y(), - header_->extended_size_hint().width(), viewport_->height()); - update_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); } -void View::paint_label(QPainter &p, const QRect &rect, bool hover) +bool View::header_fully_visible() const { - (void)p; - (void)rect; - (void)hover; + const int header_pane_width = splitter_->sizes().front(); + const int header_width = header_->extended_size_hint().width(); + + return (header_pane_width >= header_width); } -QRectF View::label_rect(const QRectF &rect) +void View::update_layout() { - (void)rect; - return QRectF(); + // Only adjust pane sizes if the header hasn't been partially hidden by the user + if (header_fully_visible()) { + 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); + } + + update_scroll(); } -RowItemOwner* View::find_prevalent_trace_group( +TraceTreeItemOwner* View::find_prevalent_trace_group( const shared_ptr &group, - const unordered_map, shared_ptr > + 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()) { - const auto iter = signal_map.find(channel); - if (iter == signal_map.end()) - continue; - - RowItemOwner *const o = (*iter).second->owner(); - owner_list.push_back(o); - owners.insert(o); + 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; - RowItemOwner *prevalent_owner = nullptr; - for (RowItemOwner *owner : owners) { - const size_t prevalence = std::count_if( + TraceTreeItemOwner *prevalent_owner = nullptr; + for (TraceTreeItemOwner *owner : owners) { + const size_t prevalence = 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; @@ -636,25 +929,24 @@ RowItemOwner* View::find_prevalent_trace_group( vector< shared_ptr > View::extract_new_traces_for_channels( const vector< shared_ptr > &channels, - const unordered_map, shared_ptr > + const unordered_map, shared_ptr > &signal_map, set< shared_ptr > &add_list) { vector< shared_ptr > filtered_traces; - for (const auto &channel : channels) - { - const auto map_iter = signal_map.find(channel); - if (map_iter == signal_map.end()) - continue; - - shared_ptr trace = (*map_iter).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); + 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; @@ -663,19 +955,16 @@ 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) { // Check all signals but... - for (const shared_ptr signal : sigs) { + 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()) { - time_unit_ = util::Time; + set_time_unit(util::TimeUnit::Time); break; } } @@ -702,32 +991,37 @@ bool View::eventFilter(QObject *object, QEvent *event) } 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 (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); } -bool View::viewportEvent(QEvent *e) +void View::resizeEvent(QResizeEvent* event) { - switch(e->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; + // Only adjust the top margin if we shrunk vertically + if (event->size().height() < event->oldSize().height()) + adjust_top_margin(); - default: - return QAbstractScrollArea::viewportEvent(e); - } -} - -void View::resizeEvent(QResizeEvent*) -{ update_layout(); } @@ -750,8 +1044,9 @@ 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(); } @@ -767,13 +1062,14 @@ void View::h_scroll_value_changed(int value) sticky_scrolling_changed(false); } - const int range = horizontalScrollBar()->maximum(); + const int range = scrollarea_->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(); @@ -788,28 +1084,38 @@ void View::v_scroll_value_changed() void View::signals_changed() { - vector< shared_ptr > new_top_level_items; + using sigrok::Channel; - const auto device = session_.device(); - if (!device) - return; + vector< shared_ptr > channels; + shared_ptr sr_dev; - shared_ptr sr_dev = device->device(); - assert(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 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()); - - set< shared_ptr > traces(sigs.begin(), sigs.end()); + set< shared_ptr > traces(signals_.begin(), signals_.end()); #ifdef ENABLE_DECODE - const vector< shared_ptr > decode_traces( - session().get_decode_signals()); - traces.insert(decode_traces.begin(), decode_traces.end()); + traces.insert(decode_traces_.begin(), decode_traces_.end()); #endif set< shared_ptr > add_traces; @@ -823,61 +1129,84 @@ void View::signals_changed() inserter(remove_traces, remove_traces.begin())); // Make a look-up table of sigrok Channels to pulseview Signals - unordered_map, shared_ptr > + unordered_map, shared_ptr > signal_map; - for (const shared_ptr &sig : sigs) - signal_map[sig->channel()] = sig; + for (const shared_ptr &sig : signals_) + signal_map[sig->base()] = sig; // Populate channel groups - 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 - RowItemOwner *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(); + 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); + } } - // 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; - } + // 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 this is a new group, enqueue it in the new top level - // items list - if (!new_traces_in_group.empty() && new_trace_group) - new_top_level_items.push_back(new_trace_group); + 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(sr_dev->channels(), - signal_map, add_traces); + 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()); @@ -887,21 +1216,31 @@ 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); } + // 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 present item - int offset = v_extents().second; + // 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; } @@ -910,47 +1249,61 @@ void View::signals_changed() header_->update(); viewport_->update(); + + if (reset_scrollbar) + set_scroll_default(); } 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) { + 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::Running) - time_unit_ = util::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(); -void View::data_updated() -{ - if (always_zoom_to_fit_ || sticky_scrolling_) { - if (!delayed_view_updater_.isActive()) - delayed_view_updater_.start(); - } else { - determine_time_unit(); - update_scroll(); - ruler_->update(); - viewport_->update(); + // 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_) + if (always_zoom_to_fit_) { zoom_fit(true); - - if (sticky_scrolling_) { + } else 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(); @@ -961,10 +1314,10 @@ 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(); } @@ -974,9 +1327,12 @@ 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(); } -} // namespace view +} // namespace TraceView +} // namespace views } // namespace pv