X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fview%2Fdecodetrace.cpp;h=5ca665e0dff947f17ebbcbd0a5a77aa8802d1b98;hp=c8a20dc3c9c6cf7eb3888080351e624ba38349c7;hb=be9e7b4bb29b6594ec2b64442748ab135b684bf8;hpb=6ac6242b25cfbd4df14abe7580adc9d0f4cffe43 diff --git a/pv/view/decodetrace.cpp b/pv/view/decodetrace.cpp index c8a20dc3..5ca665e0 100644 --- a/pv/view/decodetrace.cpp +++ b/pv/view/decodetrace.cpp @@ -22,8 +22,12 @@ extern "C" { #include } +#include + #include +#include + #include #include @@ -33,6 +37,7 @@ extern "C" { #include #include #include +#include #include "decodetrace.h" @@ -44,15 +49,23 @@ extern "C" { #include #include #include +#include #include #include +using boost::shared_lock; +using boost::shared_mutex; using std::dynamic_pointer_cast; using std::list; +using std::lock_guard; +using std::make_pair; using std::max; +using std::make_pair; using std::map; using std::min; +using std::pair; using std::shared_ptr; +using std::tie; using std::vector; namespace pv { @@ -116,6 +129,8 @@ DecodeTrace::DecodeTrace(pv::SigSession &session, decoder_stack->stack().front()->decoder()->name)), _session(session), _decoder_stack(decoder_stack), + _text_height(0), + _row_height(0), _delete_mapper(this), _show_hide_mapper(this) { @@ -141,64 +156,48 @@ const std::shared_ptr& DecodeTrace::decoder() const return _decoder_stack; } -void DecodeTrace::set_view(pv::view::View *view) +pair DecodeTrace::v_extents() const { - assert(view); - Trace::set_view(view); + /// @todo Replace this with an implementation that knows the true + /// height of the trace + QFontMetrics m(QApplication::font()); + const int text_height = m.boundingRect(QRect(), 0, "Tg").height(); + const int row_height = (text_height * 6) / 4; + return make_pair(-row_height / 2, row_height * 7 / 2); } void DecodeTrace::paint_back(QPainter &p, int left, int right) { Trace::paint_back(p, left, right); - paint_axis(p, get_y(), left, right); + paint_axis(p, get_visual_y(), left, right); } void DecodeTrace::paint_mid(QPainter &p, int left, int right) { using namespace pv::data::decode; - const double scale = _view->scale(); - assert(scale > 0); - - double samplerate = _decoder_stack->samplerate(); - - _cur_row_headings.clear(); - - // Show sample rate as 1Hz when it is unknown - if (samplerate == 0.0) - samplerate = 1.0; - - const double pixels_offset = (_view->offset() - - _decoder_stack->get_start_time()) / scale; - const double samples_per_pixel = samplerate * scale; - - const uint64_t start_sample = (uint64_t)max((left + pixels_offset) * - samples_per_pixel, 0.0); - const uint64_t end_sample = (uint64_t)max((right + pixels_offset) * - samples_per_pixel, 0.0); - QFontMetrics m(QApplication::font()); - const int text_height = m.boundingRect(QRect(), 0, "Tg").height(); - const int annotation_height = (text_height * 5) / 4; - const int row_height = (text_height * 6) / 4; + _text_height = m.boundingRect(QRect(), 0, "Tg").height(); + _row_height = (_text_height * 6) / 4; + const int annotation_height = (_text_height * 5) / 4; assert(_decoder_stack); const QString err = _decoder_stack->error_message(); if (!err.isEmpty()) { - draw_unresolved_period(p, annotation_height, left, right, - samples_per_pixel, pixels_offset); + draw_unresolved_period(p, annotation_height, left, right); draw_error(p, err, left, right); return; } // Iterate through the rows - assert(_view); - int y = get_y(); + int y = get_visual_y(); + pair sample_range = get_sample_range(left, right); assert(_decoder_stack); - const vector rows(_decoder_stack->get_visible_rows()); + + _visible_rows.clear(); for (size_t i = 0; i < rows.size(); i++) { const Row &row = rows[i]; @@ -211,22 +210,20 @@ void DecodeTrace::paint_mid(QPainter &p, int left, int right) vector annotations; _decoder_stack->get_annotation_subset(annotations, row, - start_sample, end_sample); + sample_range.first, sample_range.second); if (!annotations.empty()) { for (const Annotation &a : annotations) draw_annotation(a, p, get_text_colour(), - annotation_height, left, right, - samples_per_pixel, pixels_offset, y, + annotation_height, left, right, y, base_colour); - y += row_height; + y += _row_height; - _cur_row_headings.push_back(row.title()); + _visible_rows.push_back(rows[i]); } } // Draw the hatching - draw_unresolved_period(p, annotation_height, left, right, - samples_per_pixel, pixels_offset); + draw_unresolved_period(p, annotation_height, left, right); } void DecodeTrace::paint_fore(QPainter &p, int left, int right) @@ -235,13 +232,11 @@ void DecodeTrace::paint_fore(QPainter &p, int left, int right) (void)right; - QFontMetrics m(QApplication::font()); - const int text_height = m.boundingRect(QRect(), 0, "Tg").height(); - const int row_height = (text_height * 6) / 4; + assert(_row_height); - for (size_t i = 0; i < _cur_row_headings.size(); i++) + for (size_t i = 0; i < _visible_rows.size(); i++) { - const int y = i * row_height + get_y(); + const int y = i * _row_height + get_visual_y(); p.setPen(QPen(Qt::NoPen)); p.setBrush(QApplication::palette().brush(QPalette::WindowText)); @@ -256,9 +251,9 @@ void DecodeTrace::paint_fore(QPainter &p, int left, int right) p.drawPolygon(points, countof(points)); } - const QRect r(left + ArrowSize * 2, y - row_height / 2, - right - left, row_height); - const QString h(_cur_row_headings[i]); + const QRect r(left + ArrowSize * 2, y - _row_height / 2, + right - left, _row_height); + const QString h(_visible_rows[i].title()); const int f = Qt::AlignLeft | Qt::AlignVCenter | Qt::TextDontClip; @@ -342,10 +337,13 @@ QMenu* DecodeTrace::create_context_menu(QWidget *parent) } void DecodeTrace::draw_annotation(const pv::data::decode::Annotation &a, - QPainter &p, QColor text_color, int h, int left, int right, - double samples_per_pixel, double pixels_offset, int y, + QPainter &p, QColor text_color, int h, int left, int right, int y, size_t base_colour) const { + double samples_per_pixel, pixels_offset; + tie(pixels_offset, samples_per_pixel) = + get_pixels_offset_samples_per_pixel(); + const double start = a.start_sample() / samples_per_pixel - pixels_offset; const double end = a.end_sample() / samples_per_pixel - @@ -445,7 +443,7 @@ void DecodeTrace::draw_range(const pv::data::decode::Annotation &a, QPainter &p, void DecodeTrace::draw_error(QPainter &p, const QString &message, int left, int right) { - const int y = get_y(); + const int y = get_visual_y(); p.setPen(ErrorBgColour.darker()); p.setBrush(ErrorBgColour); @@ -464,11 +462,13 @@ void DecodeTrace::draw_error(QPainter &p, const QString &message, } void DecodeTrace::draw_unresolved_period(QPainter &p, int h, int left, - int right, double samples_per_pixel, double pixels_offset) + int right) const { using namespace pv::data; using pv::data::decode::Decoder; + double samples_per_pixel, pixels_offset; + assert(_decoder_stack); shared_ptr data; @@ -499,7 +499,11 @@ void DecodeTrace::draw_unresolved_period(QPainter &p, int h, int left, if (sample_count == samples_decoded) return; - const int y = get_y(); + const int y = get_visual_y(); + + tie(pixels_offset, samples_per_pixel) = + get_pixels_offset_samples_per_pixel(); + const double start = max(samples_decoded / samples_per_pixel - pixels_offset, left - 1.0); const double end = min(sample_count / samples_per_pixel - @@ -515,6 +519,125 @@ void DecodeTrace::draw_unresolved_period(QPainter &p, int h, int left, p.drawRect(no_decode_rect); } +pair DecodeTrace::get_pixels_offset_samples_per_pixel() const +{ + assert(_owner); + assert(_decoder_stack); + + const View *view = _owner->view(); + assert(view); + + const double scale = view->scale(); + assert(scale > 0); + + const double pixels_offset = + (view->offset() - _decoder_stack->get_start_time()) / scale; + + double samplerate = _decoder_stack->samplerate(); + + // Show sample rate as 1Hz when it is unknown + if (samplerate == 0.0) + samplerate = 1.0; + + return make_pair(pixels_offset, samplerate * scale); +} + +pair DecodeTrace::get_sample_range( + int x_start, int x_end) const +{ + double samples_per_pixel, pixels_offset; + tie(pixels_offset, samples_per_pixel) = + get_pixels_offset_samples_per_pixel(); + + const uint64_t start = (uint64_t)max( + (x_start + pixels_offset) * samples_per_pixel, 0.0); + const uint64_t end = (uint64_t)max( + (x_end + pixels_offset) * samples_per_pixel, 0.0); + + return make_pair(start, end); +} + +int DecodeTrace::get_row_at_point(const QPoint &point) +{ + if (!_row_height) + return -1; + + const int row = (point.y() - get_visual_y() + _row_height / 2) / + _row_height; + if (row < 0 || row >= (int)_visible_rows.size()) + return -1; + + return row; +} + +const QString DecodeTrace::get_annotation_at_point(const QPoint &point) +{ + using namespace pv::data::decode; + + if (!enabled()) + return QString(); + + const pair sample_range = + get_sample_range(point.x(), point.x() + 1); + const int row = get_row_at_point(point); + if (row < 0) + return QString(); + + vector annotations; + + assert(_decoder_stack); + _decoder_stack->get_annotation_subset(annotations, _visible_rows[row], + sample_range.first, sample_range.second); + + return (annotations.empty()) ? + QString() : annotations[0].annotations().front(); +} + +void DecodeTrace::hide_hover_annotation() +{ + QToolTip::hideText(); +} + +void DecodeTrace::hover_point_changed() +{ + assert(_owner); + + const View *const view = _owner->view(); + assert(view); + + QPoint hp = view->hover_point(); + QString ann = get_annotation_at_point(hp); + + assert(view); + assert(_row_height); + + if (ann.isEmpty()) { + hide_hover_annotation(); + return; + } + + const int hover_row = get_row_at_point(hp); + + 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 = 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. + hp.setX(hp.x() - (text_size.width() / 2) - padding); + + hp.setY(get_visual_y() - (_row_height / 2) + + (hover_row * _row_height) - + _row_height - text_size.height()); + + QToolTip::showText(view->viewport()->mapToGlobal(hp), ann); +} + void DecodeTrace::create_decoder_form(int index, shared_ptr &dec, QWidget *parent, QFormLayout *form) @@ -587,7 +710,8 @@ QComboBox* DecodeTrace::create_channel_selector( { assert(dec); - const vector< shared_ptr > sigs = _session.get_signals(); + shared_lock lock(_session.signals_mutex()); + const vector< shared_ptr > &sigs(_session.signals()); assert(_decoder_stack); const auto channel_iter = dec->channels().find(pdch); @@ -605,7 +729,7 @@ QComboBox* DecodeTrace::create_channel_selector( if (dynamic_pointer_cast(s) && s->enabled()) { - selector->addItem(s->get_name(), + selector->addItem(s->name(), qVariantFromValue((void*)s.get())); if ((*channel_iter).second == s) selector->setCurrentIndex(i + 1); @@ -620,7 +744,9 @@ void DecodeTrace::commit_decoder_channels(shared_ptr &dec assert(dec); map > channel_map; - const vector< shared_ptr > sigs = _session.get_signals(); + + shared_lock lock(_session.signals_mutex()); + const vector< shared_ptr > &sigs(_session.signals()); for (const ChannelSelector &s : _channel_selectors) { @@ -653,8 +779,8 @@ void DecodeTrace::commit_channels() void DecodeTrace::on_new_decode_data() { - if (_view) - _view->update_viewport(); + if (_owner) + _owner->update_viewport(); } void DecodeTrace::delete_pressed() @@ -713,7 +839,7 @@ void DecodeTrace::on_show_hide_decoder(int index) assert(index < (int)_decoder_forms.size()); _decoder_forms[index]->set_decoder_visible(show); - _view->update_viewport(); + _owner->update_viewport(); } } // namespace view