X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=pv%2Fview%2Fdecodetrace.cpp;h=2773297197fa304e9561e6bb0ab009b9421a378f;hb=1ef49ddd04f44a4369403fbab19ed235483e2975;hp=f450f45b819207f1871aeb4f3dbf574e84d5d325;hpb=7f8517f63ab9ff98938ceee486bb94c0aa80b74b;p=pulseview.git diff --git a/pv/view/decodetrace.cpp b/pv/view/decodetrace.cpp index f450f45b..27732971 100644 --- a/pv/view/decodetrace.cpp +++ b/pv/view/decodetrace.cpp @@ -24,6 +24,8 @@ extern "C" { #include +#include + #include #include @@ -33,6 +35,7 @@ extern "C" { #include #include #include +#include #include "decodetrace.h" @@ -44,6 +47,7 @@ extern "C" { #include #include #include +#include #include #include @@ -55,6 +59,7 @@ using std::map; using std::min; using std::pair; using std::shared_ptr; +using std::tie; using std::vector; namespace pv { @@ -145,12 +150,6 @@ const std::shared_ptr& DecodeTrace::decoder() const return _decoder_stack; } -void DecodeTrace::set_view(pv::view::View *view) -{ - assert(view); - Trace::set_view(view); -} - void DecodeTrace::paint_back(QPainter &p, int left, int right) { Trace::paint_back(p, left, right); @@ -176,14 +175,13 @@ void DecodeTrace::paint_mid(QPainter &p, int left, int right) } // Iterate through the rows - assert(_view); int y = get_y(); pair sample_range = get_sample_range(left, right); assert(_decoder_stack); const vector rows(_decoder_stack->get_visible_rows()); - _cur_row_headings.clear(); + _visible_rows.clear(); for (size_t i = 0; i < rows.size(); i++) { const Row &row = rows[i]; @@ -204,7 +202,7 @@ void DecodeTrace::paint_mid(QPainter &p, int left, int right) base_colour); y += _row_height; - _cur_row_headings.push_back(row.title()); + _visible_rows.push_back(rows[i]); } } @@ -220,7 +218,7 @@ void DecodeTrace::paint_fore(QPainter &p, int left, int right) 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(); @@ -239,7 +237,7 @@ void DecodeTrace::paint_fore(QPainter &p, int left, int right) const QRect r(left + ArrowSize * 2, y - _row_height / 2, right - left, _row_height); - const QString h(_cur_row_headings[i]); + const QString h(_visible_rows[i].title()); const int f = Qt::AlignLeft | Qt::AlignVCenter | Qt::TextDontClip; @@ -326,8 +324,9 @@ void DecodeTrace::draw_annotation(const pv::data::decode::Annotation &a, QPainter &p, QColor text_color, int h, int left, int right, int y, size_t base_colour) const { - const double samples_per_pixel = get_samples_per_pixel(); - const double pixels_offset = get_pixels_offset(); + 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; @@ -452,6 +451,8 @@ void DecodeTrace::draw_unresolved_period(QPainter &p, int h, int left, using namespace pv::data; using pv::data::decode::Decoder; + double samples_per_pixel, pixels_offset; + assert(_decoder_stack); shared_ptr data; @@ -484,8 +485,8 @@ void DecodeTrace::draw_unresolved_period(QPainter &p, int h, int left, const int y = get_y(); - const double samples_per_pixel = get_samples_per_pixel(); - const double pixels_offset = get_pixels_offset(); + 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); @@ -502,7 +503,7 @@ void DecodeTrace::draw_unresolved_period(QPainter &p, int h, int left, p.drawRect(no_decode_rect); } -double DecodeTrace::get_pixels_offset() const +pair DecodeTrace::get_pixels_offset_samples_per_pixel() const { assert(_view); assert(_decoder_stack); @@ -510,16 +511,8 @@ double DecodeTrace::get_pixels_offset() const const double scale = _view->scale(); assert(scale > 0); - return (_view->offset() - _decoder_stack->get_start_time()) / scale; -} - -double DecodeTrace::get_samples_per_pixel() const -{ - assert(_view); - assert(_decoder_stack); - - 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(); @@ -527,23 +520,96 @@ double DecodeTrace::get_samples_per_pixel() const if (samplerate == 0.0) samplerate = 1.0; - return samplerate * scale; + return make_pair(pixels_offset, samplerate * scale); } -pair DecodeTrace::get_sample_range(int x_start, int x_end) const +pair DecodeTrace::get_sample_range( + int x_start, int x_end) const { - assert(_view); + 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_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); - const double samples_per_pixel = get_samples_per_pixel(); - const double pixels_offset = get_pixels_offset(); + return (annotations.empty()) ? + QString() : annotations[0].annotations().front(); +} - uint64_t start, end; +void DecodeTrace::hide_hover_annotation() +{ + QToolTip::hideText(); +} - start = (uint64_t)max((x_start + pixels_offset) * samples_per_pixel, 0.0); - end = (uint64_t)max((x_end + pixels_offset) * samples_per_pixel, 0.0); +void DecodeTrace::hover_point_changed() +{ + QPoint hp = _view->hover_point(); + QString ann = get_annotation_at_point(hp); - return make_pair(start, end); + 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_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,