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;
{
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());
_text_height = m.boundingRect(QRect(), 0, "Tg").height();
_row_height = (_text_height * 6) / 4;
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());
+
+ _cur_row_headings.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;
}
// 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 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);
+}
+
void DecodeTrace::create_decoder_form(int index,
shared_ptr<data::decode::Decoder> &dec, QWidget *parent,
QFormLayout *form)
private:
void draw_annotation(const pv::data::decode::Annotation &a, QPainter &p,
- QColor text_colour, int text_height, int left, int right,
- double samples_per_pixel, double pixels_offset, int y,
+ QColor text_colour, int text_height, int left, int right, int y,
size_t base_colour) const;
void draw_instant(const pv::data::decode::Annotation &a, QPainter &p,
int left, int right);
void draw_unresolved_period(QPainter &p, int h, int left,
- int right, double samples_per_pixel, double pixels_offset);
+ int right) const;
+
+ double get_pixels_offset() const;
+
+ double get_samples_per_pixel() const;
+
+ /**
+ * Determines the start and end sample for a given pixel range.
+ * @param x_start the X coordinate of the start sample in the view
+ * @param x_end the X coordinate of the end sample in the view
+ * @return Returns a pair containing the start sample and the end
+ * sample that correspond to the start and end coordinates.
+ */
+ std::pair<uint64_t, uint64_t> get_sample_range(int x_start, int x_end) const;
void create_decoder_form(int index,
std::shared_ptr<pv::data::decode::Decoder> &dec,