X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=pv%2Fviews%2Ftrace%2Fdecodetrace.cpp;h=0f625b1a3b4bd62ba37f6b309056d81fa9457773;hb=81dc02212c05c99554194a15f9b584e6b500cda9;hp=8ea6f74453cdaee48146751821a77037bef6989b;hpb=9741d6e0ef768fc9f9fddd458803423c733b2305;p=pulseview.git diff --git a/pv/views/trace/decodetrace.cpp b/pv/views/trace/decodetrace.cpp index 8ea6f744..0f625b1a 100644 --- a/pv/views/trace/decodetrace.cpp +++ b/pv/views/trace/decodetrace.cpp @@ -32,6 +32,7 @@ extern "C" { #include #include #include +#include #include #include #include @@ -71,6 +72,7 @@ using std::tie; using std::vector; using pv::data::decode::Annotation; +using pv::data::decode::AnnotationClass; using pv::data::decode::Row; using pv::data::decode::DecodeChannel; using pv::data::DecodeSignal; @@ -85,13 +87,17 @@ namespace trace { const QColor DecodeTrace::ErrorBgColor = QColor(0xEF, 0x29, 0x29); const QColor DecodeTrace::NoDecodeColor = QColor(0x88, 0x8A, 0x85); +const QColor DecodeTrace::ExpandMarkerWarnColor = QColor(0xFF, 0xA5, 0x00); // QColorConstants::Svg::orange +const uint8_t DecodeTrace::ExpansionAreaHeaderAlpha = 10 * 255 / 100; +const uint8_t DecodeTrace::ExpansionAreaAlpha = 5 * 255 / 100; -const int DecodeTrace::ArrowSize = 7; +const int DecodeTrace::ArrowSize = 6; const double DecodeTrace::EndCapWidth = 5; -const int DecodeTrace::RowTitleMargin = 10; +const int DecodeTrace::RowTitleMargin = 7; const int DecodeTrace::DrawPadding = 100; const int DecodeTrace::MaxTraceUpdateRate = 1; // No more than 1 Hz +const unsigned int DecodeTrace::AnimationDurationInTicks = 7; DecodeTrace::DecodeTrace(pv::Session &session, shared_ptr signalbase, int index) : @@ -99,7 +105,8 @@ DecodeTrace::DecodeTrace(pv::Session &session, session_(session), max_visible_rows_(0), delete_mapper_(this), - show_hide_mapper_(this) + show_hide_mapper_(this), + row_show_hide_mapper_(this) { decode_signal_ = dynamic_pointer_cast(base_); @@ -139,16 +146,37 @@ DecodeTrace::DecodeTrace(pv::Session &session, this, SLOT(on_delete_decoder(int))); connect(&show_hide_mapper_, SIGNAL(mapped(int)), this, SLOT(on_show_hide_decoder(int))); + connect(&row_show_hide_mapper_, SIGNAL(mapped(int)), + this, SLOT(on_show_hide_row(int))); + connect(&class_show_hide_mapper_, SIGNAL(mapped(QWidget*)), + this, SLOT(on_show_hide_class(QWidget*))); connect(&delayed_trace_updater_, SIGNAL(timeout()), this, SLOT(on_delayed_trace_update())); delayed_trace_updater_.setSingleShot(true); delayed_trace_updater_.setInterval(1000 / MaxTraceUpdateRate); + + connect(&animation_timer_, SIGNAL(timeout()), + this, SLOT(on_animation_timer())); + animation_timer_.setInterval(1000 / 50); + + default_marker_shape_ << QPoint(0, -ArrowSize); + default_marker_shape_ << QPoint(ArrowSize, 0); + default_marker_shape_ << QPoint(0, ArrowSize); } DecodeTrace::~DecodeTrace() { GlobalSettings::remove_change_handler(this); + + for (DecodeTraceRow& r : rows_) { + for (QCheckBox* cb : r.selectors) + delete cb; + + delete r.selector_container; + delete r.header_container; + delete r.container; + } } bool DecodeTrace::enabled() const @@ -168,7 +196,7 @@ pair DecodeTrace::v_extents() const return make_pair(-default_row_height_, default_row_height_); unsigned int height = 0; - for (const RowData& r : rows_) + for (const DecodeTraceRow& r : rows_) if (r.currently_visible) height += r.height; @@ -196,14 +224,14 @@ void DecodeTrace::paint_mid(QPainter &p, ViewItemPaintParams &pp) sample_range.second = min((int64_t)sample_range.second, decode_signal_->get_decoded_sample_count(current_segment_, false)); - for (RowData& r : rows_) - r.currently_visible = false; visible_rows_ = 0; int y = get_visual_y(); - for (RowData& r : rows_) { - // If an entire decoder is hidden, we don't want to fetch annotations - if (!r.decode_row.decoder()->shown()) { + for (DecodeTraceRow& r : rows_) { + // If the row is hidden, we don't want to fetch annotations + assert(r.decode_row); + assert(r.decode_row->decoder()); + if ((!r.decode_row->decoder()->shown()) || (!r.decode_row->visible())) { r.currently_visible = false; continue; } @@ -214,12 +242,15 @@ void DecodeTrace::paint_mid(QPainter &p, ViewItemPaintParams &pp) // Show row if there are visible annotations or when user wants to see // all rows that have annotations somewhere and this one is one of them - size_t ann_count = decode_signal_->get_annotation_count(r.decode_row, current_segment_); - r.currently_visible = !annotations.empty() || (always_show_all_rows_ && (ann_count > 0)); + r.currently_visible = !annotations.empty(); + if (!r.currently_visible) { + size_t ann_count = decode_signal_->get_annotation_count(r.decode_row, current_segment_); + r.currently_visible = always_show_all_rows_ && (ann_count > 0); + } if (r.currently_visible) { draw_annotations(annotations, p, annotation_height_, pp, y, - get_row_color(r.decode_row.index()), r.title_width); + get_row_color(r.decode_row->index()), r.title_width); y += r.height; visible_rows_++; } @@ -244,30 +275,29 @@ void DecodeTrace::paint_fore(QPainter &p, ViewItemPaintParams &pp) { unsigned int y = get_visual_y(); - for (const RowData& r : rows_) { + for (const DecodeTraceRow& r : rows_) { if (!r.currently_visible) continue; p.setPen(QPen(Qt::NoPen)); if (r.expand_marker_highlighted) - p.setBrush(QApplication::palette().brush(QPalette::HighlightedText)); + p.setBrush(QApplication::palette().brush(QPalette::Highlight)); + else if (r.has_hidden_classes) + p.setBrush(ExpandMarkerWarnColor); else p.setBrush(QApplication::palette().brush(QPalette::WindowText)); // Draw expansion marker - const QPointF points[] = { - QPointF(pp.left(), y - ArrowSize), - QPointF(pp.left() + ArrowSize, y), - QPointF(pp.left(), y + ArrowSize) - }; - p.drawPolygon(points, countof(points)); + QPolygon marker(r.expand_marker_shape); + marker.translate(pp.left(), y); + p.drawPolygon(marker); p.setBrush(QApplication::palette().brush(QPalette::WindowText)); const QRect text_rect(pp.left() + ArrowSize * 2, y - r.height / 2, pp.right() - pp.left(), r.height); - const QString h(r.decode_row.title()); + const QString h(r.decode_row->title()); const int f = Qt::AlignLeft | Qt::AlignVCenter | Qt::TextDontClip; @@ -295,7 +325,7 @@ void DecodeTrace::update_stack_button() // Only show decoders in the menu that can be stacked onto the last one in the stack if (!stack.empty()) { - const srd_decoder* d = stack.back()->decoder(); + const srd_decoder* d = stack.back()->get_srd_decoder(); if (d->outputs) { pv::widgets::DecoderMenu *const decoder_menu = @@ -393,9 +423,9 @@ QMenu* DecodeTrace::create_view_context_menu(QWidget *parent, QPoint &click_pos) } selected_row_ = nullptr; - const RowData* r = get_row_at_point(click_pos); + const DecodeTraceRow* r = get_row_at_point(click_pos); if (r) - selected_row_ = &(r->decode_row); + selected_row_ = r->decode_row; const View *const view = owner_->view(); assert(view); @@ -484,6 +514,96 @@ QMenu* DecodeTrace::create_view_context_menu(QWidget *parent, QPoint &click_pos) return menu; } +void DecodeTrace::delete_pressed() +{ + on_delete(); +} + +void DecodeTrace::hover_point_changed(const QPoint &hp) +{ + Trace::hover_point_changed(hp); + + assert(owner_); + + DecodeTraceRow* hover_row = get_row_at_point(hp); + + // Row expansion marker handling + for (DecodeTraceRow& r : rows_) + r.expand_marker_highlighted = false; + + if (hover_row) { + int row_y = get_row_y(hover_row); + if ((hp.x() > 0) && (hp.x() < 2 * ArrowSize) && + (hp.y() > (int)(row_y - ArrowSize)) && (hp.y() < (int)(row_y + ArrowSize))) + hover_row->expand_marker_highlighted = true; + } + + // Tooltip handling + if (hp.x() > 0) { + QString ann = get_annotation_at_point(hp); + + if (!ann.isEmpty()) { + QFontMetrics m(QToolTip::font()); + const QRect text_size = m.boundingRect(QRect(), 0, ann); + + // This is OS-specific and unfortunately we can't query it, so + // use an approximation to at least try to minimize the error. + const int padding = default_row_height_ + 8; + + // Make sure the tool tip doesn't overlap with the mouse cursor. + // If it did, the tool tip would constantly hide and re-appear. + // We also push it up by one row so that it appears above the + // decode trace, not below. + QPoint p = hp; + p.setX(hp.x() - (text_size.width() / 2) - padding); + + p.setY(get_row_y(hover_row) - default_row_height_ - + text_size.height() - padding); + + const View *const view = owner_->view(); + assert(view); + QToolTip::showText(view->viewport()->mapToGlobal(p), ann); + + } else + QToolTip::hideText(); + + } else + QToolTip::hideText(); +} + +void DecodeTrace::mouse_left_press_event(const QMouseEvent* event) +{ + // Handle row expansion marker + for (DecodeTraceRow& r : rows_) { + if (!r.expand_marker_highlighted) + continue; + + unsigned int y = get_row_y(&r); + if ((event->x() > 0) && (event->x() <= (int)(ArrowSize + 3)) && + (event->y() > (int)(y - (default_row_height_ / 2))) && + (event->y() <= (int)(y + (default_row_height_ / 2)))) { + + if (r.expanded) { + r.collapsing = true; + r.expanded = false; + r.anim_shape = ArrowSize; + } else { + r.expanding = true; + r.anim_shape = 0; + r.container->setVisible(true); + QApplication::processEvents(); + r.expanded_height = 5 * default_row_height_ + r.container->size().height(); + } + + r.animation_step = 0; + r.anim_height = r.height; + + update_expanded_rows(); + animation_timer_.start(); + } + } +} + void DecodeTrace::draw_annotations(vector annotations, QPainter &p, int h, const ViewItemPaintParams &pp, int y, QColor row_color, int row_title_width) @@ -681,7 +801,7 @@ void DecodeTrace::draw_range(const pv::data::decode::Annotation &a, QPainter &p, const int ann_start = start + cap_width; const int ann_end = end - cap_width; - const int real_start = max(ann_start, pp.left() + row_title_width); + const int real_start = max(ann_start, pp.left() + ArrowSize + row_title_width); const int real_end = min(ann_end, pp.right()); const int real_width = real_end - real_start; @@ -830,13 +950,13 @@ QColor DecodeTrace::get_annotation_color(QColor row_color, int annotation_index) return color; } -unsigned int DecodeTrace::get_row_y(const RowData* row) const +unsigned int DecodeTrace::get_row_y(const DecodeTraceRow* row) const { assert(row); unsigned int y = get_visual_y(); - for (const RowData& r : rows_) { + for (const DecodeTraceRow& r : rows_) { if (!r.currently_visible) continue; @@ -849,11 +969,11 @@ unsigned int DecodeTrace::get_row_y(const RowData* row) const return y; } -RowData* DecodeTrace::get_row_at_point(const QPoint &point) +DecodeTraceRow* DecodeTrace::get_row_at_point(const QPoint &point) { int y = get_visual_y() - (default_row_height_ / 2); - for (RowData& r : rows_) { + for (DecodeTraceRow& r : rows_) { if (!r.currently_visible) continue; @@ -875,7 +995,7 @@ const QString DecodeTrace::get_annotation_at_point(const QPoint &point) const pair sample_range = get_view_sample_range(point.x(), point.x() + 1); - const RowData* r = get_row_at_point(point); + const DecodeTraceRow* r = get_row_at_point(point); if (!r) return QString(); @@ -892,58 +1012,6 @@ const QString DecodeTrace::get_annotation_at_point(const QPoint &point) QString() : annotations[0].annotations().front(); } -void DecodeTrace::hover_point_changed(const QPoint &hp) -{ - Trace::hover_point_changed(hp); - - assert(owner_); - - RowData* hover_row = get_row_at_point(hp); - - // Row expansion marker handling - for (RowData& r : rows_) - r.expand_marker_highlighted = false; - - if (hover_row) { - int row_y = get_row_y(hover_row); - if ((hp.x() > 0) && (hp.x() < ArrowSize) && - (hp.y() > (int)(row_y - ArrowSize)) && (hp.y() < (int)(row_y + ArrowSize))) - hover_row->expand_marker_highlighted = true; - } - - // Tooltip handling - if (hp.x() > 0) { - QString ann = get_annotation_at_point(hp); - - if (!ann.isEmpty()) { - QFontMetrics m(QToolTip::font()); - const QRect text_size = m.boundingRect(QRect(), 0, ann); - - // This is OS-specific and unfortunately we can't query it, so - // use an approximation to at least try to minimize the error. - const int padding = default_row_height_ + 8; - - // Make sure the tool tip doesn't overlap with the mouse cursor. - // If it did, the tool tip would constantly hide and re-appear. - // We also push it up by one row so that it appears above the - // decode trace, not below. - QPoint p = hp; - p.setX(hp.x() - (text_size.width() / 2) - padding); - - p.setY(get_row_y(hover_row) - default_row_height_ - - text_size.height() - padding); - - const View *const view = owner_->view(); - assert(view); - QToolTip::showText(view->viewport()->mapToGlobal(p), ann); - - } else - QToolTip::hideText(); - - } else - QToolTip::hideText(); -} - void DecodeTrace::create_decoder_form(int index, shared_ptr &dec, QWidget *parent, QFormLayout *form) @@ -951,7 +1019,7 @@ void DecodeTrace::create_decoder_form(int index, GlobalSettings settings; assert(dec); - const srd_decoder *const decoder = dec->decoder(); + const srd_decoder *const decoder = dec->get_srd_decoder(); assert(decoder); const bool decoder_deletable = index > 0; @@ -1092,7 +1160,7 @@ void DecodeTrace::export_annotations(vector *annotations) const const QString sample_range = QString("%1-%2") \ .arg(QString::number(ann.start_sample()), QString::number(ann.end_sample())); - const QString class_name = quote + ann.row()->class_name() + quote; + const QString row_name = quote + ann.row()->description() + quote; QString all_ann_text; for (const QString &s : ann.annotations()) @@ -1105,7 +1173,7 @@ void DecodeTrace::export_annotations(vector *annotations) const out_text = out_text.replace("%s", sample_range); out_text = out_text.replace("%d", quote + QString::fromUtf8(ann.row()->decoder()->name()) + quote); - out_text = out_text.replace("%c", class_name); + out_text = out_text.replace("%r", row_name); out_text = out_text.replace("%1", first_ann_text); out_text = out_text.replace("%a", all_ann_text); out_stream << out_text << '\n'; @@ -1122,39 +1190,123 @@ void DecodeTrace::export_annotations(vector *annotations) const msg.exec(); } +void DecodeTrace::initialize_row_widgets(DecodeTraceRow* r, unsigned int row_id) +{ + QFontMetrics m(QApplication::font()); + + QPalette header_palette = owner_->view()->palette(); + QPalette selector_palette = owner_->view()->palette(); + + if (GlobalSettings::current_theme_is_dark()) { + header_palette.setColor(QPalette::Background, + QColor(255, 255, 255, ExpansionAreaHeaderAlpha)); + selector_palette.setColor(QPalette::Background, + QColor(255, 255, 255, ExpansionAreaAlpha)); + } else { + header_palette.setColor(QPalette::Background, + QColor(0, 0, 0, ExpansionAreaHeaderAlpha)); + selector_palette.setColor(QPalette::Background, + QColor(0, 0, 0, ExpansionAreaAlpha)); + } + + const int w = m.boundingRect(r->decode_row->title()).width() + RowTitleMargin; + r->title_width = w; + + r->container->resize(owner_->view()->viewport()->width() - r->container->pos().x(), + r->expanded_height - 2 * default_row_height_); + r->container->setVisible(false); + + QVBoxLayout* vlayout = new QVBoxLayout(); + r->container->setLayout(vlayout); + + // Add header container with checkbox for this row + vlayout->addWidget(r->header_container); + vlayout->setContentsMargins(0, 0, 0, 0); + vlayout->setSpacing(0); + r->header_container->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed); + r->header_container->setMinimumSize(0, default_row_height_); + r->header_container->setLayout(new QVBoxLayout()); + r->header_container->layout()->setContentsMargins(10, 2, 0, 2); + + r->header_container->setAutoFillBackground(true); + r->header_container->setPalette(header_palette); + + QCheckBox* cb = new QCheckBox(); + r->header_container->layout()->addWidget(cb); + cb->setText(tr("Show this row")); + cb->setChecked(r->decode_row->visible()); + + row_show_hide_mapper_.setMapping(cb, row_id); + connect(cb, SIGNAL(stateChanged(int)), + &row_show_hide_mapper_, SLOT(map())); + + // Add selector container + vlayout->addWidget(r->selector_container); + r->selector_container->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed); + r->selector_container->setMinimumSize(0, 3 * default_row_height_); // FIXME + r->selector_container->setLayout(new QHBoxLayout()); + + r->selector_container->setAutoFillBackground(true); + r->selector_container->setPalette(selector_palette); + + // Add all classes that can be toggled + vector ann_classes = r->decode_row->ann_classes(); + + for (const AnnotationClass* ann_class : ann_classes) { + cb = new QCheckBox(); + cb->setText(tr(ann_class->description)); + cb->setChecked(ann_class->visible); + + r->selector_container->layout()->addWidget(cb); + + cb->setProperty("ann_class_ptr", QVariant::fromValue((void*)ann_class)); + cb->setProperty("decode_trace_row_ptr", QVariant::fromValue((void*)r)); + + class_show_hide_mapper_.setMapping(cb, cb); + connect(cb, SIGNAL(stateChanged(int)), + &class_show_hide_mapper_, SLOT(map())); + } +} + void DecodeTrace::update_rows() { lock_guard lock(row_modification_mutex_); - QFontMetrics m(QApplication::font()); - - for (RowData& r : rows_) + for (DecodeTraceRow& r : rows_) r.exists = false; - for (const Row& decode_row : decode_signal_->get_rows()) { + unsigned int row_id = 0; + for (Row* decode_row : decode_signal_->get_rows()) { // Find row in our list auto r_it = find_if(rows_.begin(), rows_.end(), - [&](RowData& r){ return r.decode_row == decode_row; }); + [&](DecodeTraceRow& r){ return r.decode_row == decode_row; }); - RowData* r = nullptr; + DecodeTraceRow* r = nullptr; if (r_it == rows_.end()) { // Row doesn't exist yet, create and append it - RowData nr; + DecodeTraceRow nr; nr.decode_row = decode_row; nr.height = default_row_height_; + nr.expanded_height = default_row_height_; nr.currently_visible = false; + nr.has_hidden_classes = decode_row->has_hidden_classes(); nr.expand_marker_highlighted = false; + nr.expanding = false; nr.expanded = false; + nr.collapsing = false; + nr.expand_marker_shape = default_marker_shape_; + nr.container = new QWidget(owner_->view()->scrollarea()); + nr.header_container = new QWidget(nr.container); + nr.selector_container = new QWidget(nr.container); rows_.push_back(nr); r = &rows_.back(); + initialize_row_widgets(r, row_id); } else r = &(*r_it); r->exists = true; - - const int w = m.boundingRect(r->decode_row.title()).width() + RowTitleMargin; - r->title_width = w; + row_id++; } // Remove any rows that no longer exist, obeying that iterators are invalidated @@ -1164,6 +1316,13 @@ void DecodeTrace::update_rows() for (unsigned int i = 0; i < rows_.size(); i++) if (!rows_[i].exists) { + for (QCheckBox* cb : rows_[i].selectors) + delete cb; + + delete rows_[i].selector_container; + delete rows_[i].header_container; + delete rows_[i].container; + rows_.erase(rows_.begin() + i); any_exists = true; break; @@ -1171,6 +1330,46 @@ void DecodeTrace::update_rows() } while (any_exists); } +void DecodeTrace::set_row_expanded(DecodeTraceRow* r) +{ + r->height = r->expanded_height; + r->expanding = false; + r->expanded = true; + + // For details on this, see on_animation_timer() + r->expand_marker_shape.setPoint(0, 0, 0); + r->expand_marker_shape.setPoint(1, ArrowSize, ArrowSize); + r->expand_marker_shape.setPoint(2, 2*ArrowSize, 0); + + r->container->resize(owner_->view()->viewport()->width() - r->container->pos().x(), + r->height - 2 * default_row_height_); + + max_visible_rows_ = 0; +} + +void DecodeTrace::set_row_collapsed(DecodeTraceRow* r) +{ + r->height = default_row_height_; + r->collapsing = false; + r->expanded = false; + r->expand_marker_shape = default_marker_shape_; + r->container->setVisible(false); + + r->container->resize(owner_->view()->viewport()->width() - r->container->pos().x(), + r->height - 2 * default_row_height_); + + max_visible_rows_ = 0; +} + +void DecodeTrace::update_expanded_rows() +{ + for (DecodeTraceRow& r : rows_) { + + r.container->move(2 * ArrowSize, + get_row_y(&r) + default_row_height_); + } +} + void DecodeTrace::on_setting_changed(const QString &key, const QVariant &value) { Trace::on_setting_changed(key, value); @@ -1216,11 +1415,6 @@ void DecodeTrace::on_pause_decode() decode_signal_->pause_decode(); } -void DecodeTrace::delete_pressed() -{ - on_delete(); -} - void DecodeTrace::on_delete() { session_.remove_decode_signal(decode_signal_); @@ -1292,8 +1486,38 @@ void DecodeTrace::on_show_hide_decoder(int index) owner_->extents_changed(false, true); } - if (owner_) - owner_->row_item_appearance_changed(false, true); + owner_->row_item_appearance_changed(false, true); +} + +void DecodeTrace::on_show_hide_row(int row_id) +{ + if (row_id >= (int)rows_.size()) + return; + + set_row_collapsed(&rows_[row_id]); + rows_[row_id].decode_row->set_visible(!rows_[row_id].decode_row->visible()); + + // Force re-calculation of the trace height, see paint_mid() + max_visible_rows_ = 0; + owner_->extents_changed(false, true); + owner_->row_item_appearance_changed(false, true); +} + +void DecodeTrace::on_show_hide_class(QWidget* sender) +{ + void* ann_class_ptr = sender->property("ann_class_ptr").value(); + assert(ann_class_ptr); + AnnotationClass* ann_class = (AnnotationClass*)ann_class_ptr; + + ann_class->visible = !ann_class->visible; + + void* row_ptr = sender->property("decode_trace_row_ptr").value(); + assert(row_ptr); + DecodeTraceRow* row = (DecodeTraceRow*)row_ptr; + + row->has_hidden_classes = row->decode_row->has_hidden_classes(); + + owner_->row_item_appearance_changed(false, true); } void DecodeTrace::on_copy_annotation_to_clipboard() @@ -1305,7 +1529,7 @@ void DecodeTrace::on_copy_annotation_to_clipboard() vector *annotations = new vector(); - decode_signal_->get_annotation_subset(*annotations, *selected_row_, + decode_signal_->get_annotation_subset(*annotations, selected_row_, current_segment_, selected_sample_range_.first, selected_sample_range_.first); if (annotations->empty()) @@ -1393,7 +1617,7 @@ void DecodeTrace::on_export_row_from_here() vector *annotations = new vector(); - decode_signal_->get_annotation_subset(*annotations, *selected_row_, + decode_signal_->get_annotation_subset(*annotations, selected_row_, current_segment_, selected_sample_range_.first, selected_sample_range_.second); if (annotations->empty()) @@ -1418,6 +1642,52 @@ void DecodeTrace::on_export_all_rows_from_here() delete annotations; } +void DecodeTrace::on_animation_timer() +{ + bool animation_finished = true; + + for (DecodeTraceRow& r : rows_) { + if (!(r.expanding || r.collapsing)) + continue; + + unsigned int height_delta = r.expanded_height - default_row_height_; + + if (r.expanding) { + if (r.height < r.expanded_height) { + r.anim_height += height_delta / (float)AnimationDurationInTicks; + r.height = r.anim_height; + r.anim_shape += ArrowSize / (float)AnimationDurationInTicks; + animation_finished = false; + } else + set_row_expanded(&r); + } + + if (r.collapsing) { + if (r.height > default_row_height_) { + r.anim_height -= height_delta / (float)AnimationDurationInTicks; + r.height = r.anim_height; + r.anim_shape -= ArrowSize / (float)AnimationDurationInTicks; + animation_finished = false; + } else + set_row_collapsed(&r); + } + + // The expansion marker shape switches between + // 0/-A, A/0, 0/A (default state; anim_shape=0) and + // 0/ 0, A/A, 2A/0 (expanded state; anim_shape=ArrowSize) + + r.expand_marker_shape.setPoint(0, 0, -ArrowSize + r.anim_shape); + r.expand_marker_shape.setPoint(1, ArrowSize, r.anim_shape); + r.expand_marker_shape.setPoint(2, 2*r.anim_shape, ArrowSize - r.anim_shape); + } + + if (animation_finished) + animation_timer_.stop(); + + owner_->extents_changed(false, true); + owner_->row_item_appearance_changed(false, true); +} + } // namespace trace } // namespace views } // namespace pv