X-Git-Url: http://sigrok.org/gitweb/?a=blobdiff_plain;f=pv%2Fview%2Fview.cpp;h=8f5494acea39b4e0c449c9e2976e3ac589b0aaf1;hb=HEAD;hp=130d2d788cfaf862cbb2c83b03fbac8e48f7e4a0;hpb=c7b03d9daa9574bd633fbac2d5976716f58027f5;p=pulseview.git diff --git a/pv/view/view.cpp b/pv/view/view.cpp deleted file mode 100644 index 130d2d78..00000000 --- a/pv/view/view.cpp +++ /dev/null @@ -1,898 +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, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifdef ENABLE_DECODE -#include -#endif - -#include - -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include - -#include - -#include "decodetrace.hpp" -#include "header.hpp" -#include "logicsignal.hpp" -#include "ruler.hpp" -#include "signal.hpp" -#include "tracegroup.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/util.hpp" - -using boost::shared_lock; -using boost::shared_mutex; - -using pv::data::SignalData; -using pv::data::Segment; -using pv::util::format_time; - -using std::deque; -using std::dynamic_pointer_cast; -using std::inserter; -using std::list; -using std::lock_guard; -using std::max; -using std::make_pair; -using std::min; -using std::pair; -using std::set; -using std::set_difference; -using std::shared_ptr; -using std::unordered_map; -using std::unordered_set; -using std::vector; -using std::weak_ptr; - -namespace pv { -namespace view { - -const double View::MaxScale = 1e9; -const double View::MinScale = 1e-15; - -const int View::MaxScrollValue = INT_MAX / 2; -const int View::MaxViewAutoUpdateRate = 25; // No more than 25 Hz - -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)), - scale_(1e-3), - offset_(0), - updating_scroll_(false), - sticky_scrolling_(false), // Default setting is set in MainWindow::setup_ui() - tick_period_(0.0), - tick_prefix_(0), - show_cursors_(false), - cursors_(new CursorPair(*this)), - next_flag_text_('A'), - hover_point_(-1, -1) -{ - connect(horizontalScrollBar(), SIGNAL(valueChanged(int)), - this, SLOT(h_scroll_value_changed(int))); - connect(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(data_updated())); - 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()), - header_, SLOT(clear_selection())); - - connect(header_, SIGNAL(selection_changed()), - this, SIGNAL(selection_changed())); - connect(ruler_, SIGNAL(selection_changed()), - this, SIGNAL(selection_changed())); - - 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); - - 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(); - - // 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_; -} - -View* View::view() -{ - return this; -} - -const View* View::view() const -{ - return this; -} - -Viewport* View::viewport() -{ - return viewport_; -} - -const Viewport* View::viewport() const -{ - return viewport_; -} - -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()); - return items; -} - -double View::scale() const -{ - return scale_; -} - -double View::offset() const -{ - return offset_; -} - -int View::owner_visual_v_offset() const -{ - return -verticalScrollBar()->sliderPosition(); -} - -void View::set_v_offset(int offset) -{ - verticalScrollBar()->setSliderPosition(offset); - header_->update(); - viewport_->update(); -} - -unsigned int View::depth() const -{ - return 0; -} - -unsigned int View::tick_prefix() const -{ - return tick_prefix_; -} - -double View::tick_period() const -{ - return tick_period_; -} - -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() -{ - const pair extents = get_time_extents(); - const double delta = extents.second - extents.first; - if (delta < 1e-12) - return; - - assert(viewport_); - const int w = viewport_->width(); - if (w <= 0) - return; - - const double scale = max(min(delta / w, MaxScale), MinScale); - set_scale_offset(scale, 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; - - 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); -} - -void View::set_scale_offset(double scale, double offset) -{ - // Disable sticky scrolling when acquisition runs and user drags the viewport - if ((scale_ == scale) && (offset_ != offset) && - sticky_scrolling_ && (session_.get_capture_state() == Session::Running)) { - sticky_scrolling_ = false; - sticky_scrolling_changed(false); - } - - scale_ = scale; - 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) - if (sig->enabled()) - visible_data.insert(sig->data()); - - return visible_data; -} - -pair View::get_time_extents() const -{ - double left_time = DBL_MAX, right_time = DBL_MIN; - 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 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); - } - } - - if (left_time == DBL_MAX && right_time == DBL_MIN) - return make_pair(0.0, 0.0); - - assert(left_time < right_time); - return make_pair(left_time, right_time); -} - -void View::enable_sticky_scrolling(bool state) -{ - sticky_scrolling_ = state; -} - -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(); -} - -std::shared_ptr View::cursors() const -{ - return cursors_; -} - -void View::add_flag(double 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); - time_item_appearance_changed(true, true); -} - -void View::remove_flag(std::shared_ptr flag) -{ - flags_.remove(flag); - time_item_appearance_changed(true, true); -} - -vector< std::shared_ptr > View::flags() const -{ - vector< std::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::update_viewport() -{ - assert(viewport_); - viewport_->update(); - header_->update(); -} - -void View::restack_all_row_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()); - sort(sorted_owners.begin(), sorted_owners.end(), - [](const RowItemOwner* a, const RowItemOwner *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 &r : *this) - r->animate_to_layout_v_offset(); -} - -void View::get_scroll_layout(double &length, double &offset) const -{ - const pair extents = get_time_extents(); - length = (extents.second - extents.first) / scale_; - offset = offset_ / scale_; -} - -void View::set_zoom(double scale, int offset) -{ - 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); -} - -void View::calculate_tick_spacing() -{ - const double SpacingIncrement = 32.0f; - const double MinValueSpacing = 32.0f; - - double min_width = SpacingIncrement, typical_width; - - QFontMetrics m(QApplication::font()); - - do { - const double min_period = scale_ * min_width; - - const int order = (int)floorf(log10f(min_period)); - const double order_decimal = pow(10.0, order); - - unsigned int unit = 0; - - do { - tick_period_ = order_decimal * ScaleUnits[unit++]; - } while (tick_period_ < min_period && - unit < countof(ScaleUnits)); - - tick_prefix_ = (order - pv::util::FirstSIPrefixPower) / 3; - - typical_width = m.boundingRect(0, 0, INT_MAX, INT_MAX, - Qt::AlignLeft | Qt::AlignTop, - format_time(offset_, tick_prefix_)).width() + - MinValueSpacing; - - min_width += SpacingIncrement; - - } while(typical_width > tick_period_ / scale_); -} - -void View::update_scroll() -{ - assert(viewport_); - - const QSize areaSize = viewport_->size(); - - // Set the horizontal scroll bar - double length = 0, offset = 0; - get_scroll_layout(length, offset); - length = max(length - areaSize.width(), 0.0); - - int major_tick_distance = tick_period_ / scale_; - - horizontalScrollBar()->setPageStep(areaSize.width() / 2); - horizontalScrollBar()->setSingleStep(major_tick_distance); - - updating_scroll_ = true; - - if (length < MaxScrollValue) { - horizontalScrollBar()->setRange(0, length); - horizontalScrollBar()->setSliderPosition(offset); - } else { - horizontalScrollBar()->setRange(0, MaxScrollValue); - horizontalScrollBar()->setSliderPosition( - offset_ * MaxScrollValue / (scale_ * length)); - } - - updating_scroll_ = false; - - // Set the vertical scrollbar - verticalScrollBar()->setPageStep(areaSize.height()); - verticalScrollBar()->setSingleStep(areaSize.height() / 8); - - const pair extents = v_extents(); - verticalScrollBar()->setRange(extents.first - (areaSize.height() / 2), - extents.second - (areaSize.height() / 2)); -} - -void View::update_layout() -{ - 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(); -} - -void View::paint_label(QPainter &p, const QRect &rect, bool hover) -{ - (void)p; - (void)rect; - (void)hover; -} - -QRectF View::label_rect(const QRectF &rect) -{ - (void)rect; - return QRectF(); -} - -RowItemOwner* 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()) { - 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); - } - - // 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( - owner_list.begin(), owner_list.end(), - [&](RowItemOwner *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) - { - 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); - } - - return filtered_traces; -} - -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(); - } - - return QObject::eventFilter(object, event); -} - -bool View::viewportEvent(QEvent *e) -{ - 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; - - default: - return QAbstractScrollArea::viewportEvent(e); - } -} - -void View::resizeEvent(QResizeEvent*) -{ - 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(); - if (content) - viewport_->update(); -} - -void View::extents_changed(bool horz, bool vert) -{ - sticky_events_ |= - (horz ? RowItemHExtentsChanged : 0) | - (vert ? RowItemVExtentsChanged : 0); - lazy_event_handler_.start(); -} - -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 = horizontalScrollBar()->maximum(); - if (range < MaxScrollValue) - offset_ = scale_ * value; - else { - double length = 0, offset; - get_scroll_layout(length, offset); - offset_ = scale_ * length * value / MaxScrollValue; - } - - ruler_->update(); - viewport_->update(); -} - -void View::v_scroll_value_changed() -{ - header_->update(); - viewport_->update(); -} - -void View::signals_changed() -{ - vector< shared_ptr > new_top_level_items; - - const auto device = session_.device(); - if (!device) - return; - - shared_ptr sr_dev = device->device(); - assert(sr_dev); - - // 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(); - - shared_lock lock(session_.signals_mutex()); - const unordered_set< shared_ptr > &sigs(session_.signals()); - - set< shared_ptr > traces(sigs.begin(), sigs.end()); - -#ifdef ENABLE_DECODE - const vector< shared_ptr > decode_traces( - session().get_decode_signals()); - 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 : sigs) - signal_map[sig->channel()] = 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(); - } - - // 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 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); - } - - // 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); - 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) { - RowItemOwner *const owner = trace->owner(); - assert(owner); - owner->remove_child_item(trace); - } - - // Add and position the pending top levels items - for (auto item : new_top_level_items) { - add_child_item(item); - - // Position the item after the last present item - int offset = v_extents().second; - const pair extents = item->v_extents(); - if (item->enabled()) - offset += -extents.first; - item->force_to_v_offset(offset); - if (item->enabled()) - offset += extents.second; - } - - update_layout(); - - header_->update(); - viewport_->update(); -} - -void View::data_updated() -{ - if (sticky_scrolling_) { - if (!delayed_view_updater_.isActive()) - delayed_view_updater_.start(); - } else { - update_scroll(); - ruler_->update(); - viewport_->update(); - } -} - -void View::perform_delayed_view_update() -{ - if (sticky_scrolling_) { - // Make right side of the view sticky - double length = 0, offset; - get_scroll_layout(length, offset); - - const QSize areaSize = viewport_->size(); - length = max(length - areaSize.width(), 0.0); - - offset_ = scale_ * length; - } - - update_scroll(); - ruler_->update(); - viewport_->update(); -} - -void View::process_sticky_events() -{ - if (sticky_events_ & RowItemHExtentsChanged) - update_layout(); - if (sticky_events_ & RowItemVExtentsChanged) { - restack_all_row_items(); - update_scroll(); - } - - // Clear the sticky events - sticky_events_ = 0; -} - -void View::on_hover_point_changed() -{ - for (shared_ptr r : *this) - r->hover_point_changed(); -} - -} // namespace view -} // namespace pv