#include <QLabel>
#include <QMenu>
#include <QPushButton>
+#include <QToolTip>
#include "decodetrace.h"
using std::dynamic_pointer_cast;
using std::list;
+using std::make_pair;
using std::max;
using std::map;
using std::min;
+using std::pair;
using std::shared_ptr;
using std::vector;
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)
{
{
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();
+ pair<uint64_t, uint64_t> sample_range = get_sample_range(left, right);
assert(_decoder_stack);
-
const vector<Row> rows(_decoder_stack->get_visible_rows());
+
+ _visible_rows.clear();
for (size_t i = 0; i < rows.size(); i++)
{
const Row &row = rows[i];
vector<Annotation> 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)
(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_y();
p.setPen(QPen(Qt::NoPen));
p.setBrush(QApplication::palette().brush(QPalette::WindowText));
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;
}
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
{
+ const double samples_per_pixel = get_samples_per_pixel();
+ const double pixels_offset = get_pixels_offset();
+
const double start = a.start_sample() / samples_per_pixel -
pixels_offset;
const double end = a.end_sample() / samples_per_pixel -
}
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;
return;
const int y = get_y();
+
+ const double samples_per_pixel = get_samples_per_pixel();
+ const double pixels_offset = get_pixels_offset();
+
const double start = max(samples_decoded /
samples_per_pixel - pixels_offset, left - 1.0);
const double end = min(sample_count / samples_per_pixel -
p.drawRect(no_decode_rect);
}
+double DecodeTrace::get_pixels_offset() const
+{
+ assert(_view);
+ assert(_decoder_stack);
+
+ 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);
+
+ double samplerate = _decoder_stack->samplerate();
+
+ // Show sample rate as 1Hz when it is unknown
+ if (samplerate == 0.0)
+ samplerate = 1.0;
+
+ return samplerate * scale;
+}
+
+pair<uint64_t, uint64_t> DecodeTrace::get_sample_range(int x_start, int x_end) const
+{
+ assert(_view);
+ assert(_decoder_stack);
+
+ const double samples_per_pixel = get_samples_per_pixel();
+ const double pixels_offset = get_pixels_offset();
+
+ uint64_t start, end;
+
+ 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);
+
+ return make_pair(start, end);
+}
+
+bool DecodeTrace::hover_point_is_over_trace()
+{
+ assert(_view);
+ assert(_row_height);
+
+ // Note: if _row_height is valid then _cur_row_headings is valid, too,
+ // as both are set in paint_mid().
+
+ // Note: hp.x will be 0 if the cursor is above the header area,
+ // so we set trace.left to 1 to exclude this.
+
+ QRect trace(1, get_y() - (_row_height/2),
+ _view->width(), _row_height * _visible_rows.size());
+
+ // Note: We don't need to check for _row_height being 0 here but
+ // we do it anyway to be more robust.
+
+ return _row_height && enabled() && trace.contains(_view->hover_point());
+}
+
+int DecodeTrace::get_row_at_hover_point()
+{
+ assert(_view);
+ assert(_row_height);
+ assert(_decoder_stack);
+
+ QPoint hp = _view->hover_point();
+ int hover_row = (hp.y() - get_y() + (_row_height/2)) / _row_height;
+
+ return min(hover_row, (int)_visible_rows.size() - 1);
+}
+
+const QString DecodeTrace::get_annotation_at_hover_point()
+{
+ using namespace pv::data::decode;
+
+ assert(_view);
+ QPoint hp = _view->hover_point();
+
+ pair<uint64_t, uint64_t> sample_range = get_sample_range(hp.x(), hp.x() + 1);
+
+ const int hover_row = get_row_at_hover_point();
+
+ vector<pv::data::decode::Annotation> annotations;
+
+ assert(_decoder_stack);
+ _decoder_stack->get_annotation_subset(annotations, _visible_rows[hover_row],
+ sample_range.first, sample_range.second);
+
+ return (annotations.empty()) ?
+ QString() : annotations[0].annotations().front();
+}
+
+void DecodeTrace::show_hover_annotation()
+{
+ QString ann = get_annotation_at_hover_point();
+
+ assert(_view);
+ assert(_row_height);
+ assert(_text_height);
+
+ if (!ann.isEmpty()) {
+ const int hover_row = get_row_at_hover_point();
+
+ // Make sure the tool tip doesn't overlap with the mouse cursor.
+ // If it did, the tool tip would constantly hide and re-appear.
+ QPoint hp = _view->hover_point();
+ hp.setY(get_y() - (_row_height/2) +
+ (hover_row * _row_height) - _text_height);
+
+ QToolTip::showText(_view->mapToGlobal(hp), ann);
+ } else
+ hide_hover_annotation();
+}
+
+void DecodeTrace::hide_hover_annotation()
+{
+ QToolTip::hideText();
+}
+
+void DecodeTrace::hover_point_changed()
+{
+ if (hover_point_is_over_trace())
+ show_hover_annotation();
+ else
+ hide_hover_annotation();
+}
+
void DecodeTrace::create_decoder_form(int index,
shared_ptr<data::decode::Decoder> &dec, QWidget *parent,
QFormLayout *form)
projects / pulseview.git / blobdiff