const int DecodeTrace::ArrowSize = 4;
const double DecodeTrace::EndCapWidth = 5;
+const int DecodeTrace::RowTitleMargin = 10;
const int DecodeTrace::DrawPadding = 100;
const QColor DecodeTrace::Colours[16] = {
session_(session),
decoder_stack_(decoder_stack),
row_height_(0),
+ max_visible_rows_(0),
delete_mapper_(this),
show_hide_mapper_(this)
{
assert(decoder_stack_);
- colour_ = DecodeColours[index % countof(DecodeColours)];
+ set_colour(DecodeColours[index % countof(DecodeColours)]);
connect(decoder_stack_.get(), SIGNAL(new_decode_data()),
this, SLOT(on_new_decode_data()));
pair<int, int> DecodeTrace::v_extents() const
{
- /// @todo Replace this with an implementation that knows the true
- /// height of the trace
const int row_height = (ViewItemPaintParams::text_height() * 6) / 4;
- return make_pair(-row_height / 2, row_height * 7 / 2);
+
+ return make_pair(-row_height, row_height * max_visible_rows_);
}
void DecodeTrace::paint_back(QPainter &p, const ViewItemPaintParams &pp)
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];
+ for (auto i : rows) {
+ const Row &row = i;
+
+ // Cache the row title widths
+ int row_title_width;
+ try {
+ row_title_width = row_title_widths_.at(row);
+ } catch (std::out_of_range) {
+ const int w = p.boundingRect(QRectF(), 0, row.title()).width() +
+ RowTitleMargin;
+ row_title_widths_[row] = w;
+ row_title_width = w;
+ }
+ // Determine the row's color
size_t base_colour = 0x13579BDF;
boost::hash_combine(base_colour, this);
boost::hash_combine(base_colour, row.decoder());
decoder_stack_->get_annotation_subset(annotations, row,
sample_range.first, sample_range.second);
if (!annotations.empty()) {
- for (const Annotation &a : annotations)
- draw_annotation(a, p, annotation_height,
- pp, y, base_colour);
+ draw_annotations(annotations, p, annotation_height, pp, y,
+ base_colour, row_title_width);
+
y += row_height_;
- visible_rows_.push_back(rows[i]);
+ visible_rows_.push_back(i);
}
}
// Draw the hatching
draw_unresolved_period(p, annotation_height, pp.left(), pp.right());
+
+ // Update the maximum row count if needed
+ max_visible_rows_ = std::max(max_visible_rows_, (int)visible_rows_.size());
}
void DecodeTrace::paint_fore(QPainter &p, const ViewItemPaintParams &pp)
return menu;
}
+void DecodeTrace::draw_annotations(vector<pv::data::decode::Annotation> annotations,
+ QPainter &p, int h, const ViewItemPaintParams &pp, int y,
+ size_t base_colour, int row_title_width)
+{
+ using namespace pv::data::decode;
+
+ vector<Annotation> a_block;
+ int p_end = INT_MIN;
+
+ double samples_per_pixel, pixels_offset;
+ tie(pixels_offset, samples_per_pixel) =
+ get_pixels_offset_samples_per_pixel();
+
+ // Sort the annotations by start sample so that decoders
+ // can't confuse us by creating annotations out of order
+ stable_sort(annotations.begin(), annotations.end(),
+ [](const Annotation &a, const Annotation &b) {
+ return a.start_sample() < b.start_sample(); });
+
+ // Gather all annotations that form a visual "block" and draw them as such
+ for (const Annotation &a : annotations) {
+
+ const int a_start = a.start_sample() / samples_per_pixel - pixels_offset;
+ const int a_end = a.end_sample() / samples_per_pixel - pixels_offset;
+ const int a_width = a_end - a_start;
+
+ const int delta = a_end - p_end;
+
+ bool a_is_separate = false;
+
+ // Annotation wider than the threshold for a useful label width?
+ if (a_width > 20) {
+ for (const QString &ann_text : a.annotations()) {
+ const int w = p.boundingRect(QRectF(), 0, ann_text).width();
+ // Annotation wide enough to fit a label? Don't put it in a block then
+ if (w <= a_width) {
+ a_is_separate = true;
+ break;
+ }
+ }
+ }
+
+ // Were the previous and this annotation more than a pixel apart?
+ if ((abs(delta) > 1) || a_is_separate) {
+ // Block was broken, draw annotations that form the current block
+ if (a_block.size() == 1) {
+ draw_annotation(a_block.front(), p, h, pp, y, base_colour,
+ row_title_width);
+ }
+ else
+ draw_annotation_block(a_block, p, h, y, base_colour);
+
+ a_block.clear();
+ }
+
+ if (a_is_separate) {
+ draw_annotation(a, p, h, pp, y, base_colour, row_title_width);
+ // Next annotation must start a new block. delta will be > 1
+ // because we set p_end to INT_MIN but that's okay since
+ // a_block will be empty, so nothing will be drawn
+ p_end = INT_MIN;
+ } else {
+ a_block.push_back(a);
+ p_end = a_end;
+ }
+ }
+
+ if (a_block.size() == 1)
+ draw_annotation(a_block.front(), p, h, pp, y, base_colour,
+ row_title_width);
+ else
+ draw_annotation_block(a_block, p, h, y, base_colour);
+}
+
void DecodeTrace::draw_annotation(const pv::data::decode::Annotation &a,
QPainter &p, int h, const ViewItemPaintParams &pp, int y,
- size_t base_colour) const
+ size_t base_colour, int row_title_width) const
{
double samples_per_pixel, pixels_offset;
tie(pixels_offset, samples_per_pixel) =
pixels_offset;
const size_t colour = (base_colour + a.format()) % countof(Colours);
- const QColor &fill = Colours[colour];
- const QColor &outline = OutlineColours[colour];
+ p.setPen(OutlineColours[colour]);
+ p.setBrush(Colours[colour]);
if (start > pp.right() + DrawPadding || end < pp.left() - DrawPadding)
return;
if (a.start_sample() == a.end_sample())
- draw_instant(a, p, fill, outline, h, start, y);
+ draw_instant(a, p, h, start, y);
else
- draw_range(a, p, fill, outline, h, start, end, y);
+ draw_range(a, p, h, start, end, y, pp,
+ row_title_width);
+}
+
+void DecodeTrace::draw_annotation_block(
+ vector<pv::data::decode::Annotation> annotations, QPainter &p, int h,
+ int y, size_t base_colour) const
+{
+ using namespace pv::data::decode;
+
+ if (annotations.empty())
+ return;
+
+ double samples_per_pixel, pixels_offset;
+ tie(pixels_offset, samples_per_pixel) =
+ get_pixels_offset_samples_per_pixel();
+
+ const double start = annotations.front().start_sample() /
+ samples_per_pixel - pixels_offset;
+ const double end = annotations.back().end_sample() /
+ samples_per_pixel - pixels_offset;
+
+ const double top = y + .5 - h / 2;
+ const double bottom = y + .5 + h / 2;
+
+ const size_t colour = (base_colour + annotations.front().format()) %
+ countof(Colours);
+
+ // Check if all annotations are of the same type (i.e. we can use one color)
+ // or if we should use a neutral color (i.e. gray)
+ const int format = annotations.front().format();
+ const bool single_format = std::all_of(
+ annotations.begin(), annotations.end(),
+ [&](const Annotation &a) { return a.format() == format; });
+
+ p.setPen((single_format ? OutlineColours[colour] : Qt::gray));
+ p.setBrush(QBrush((single_format ? Colours[colour] : Qt::gray),
+ Qt::Dense4Pattern));
+ p.drawRoundedRect(
+ QRectF(start, top, end - start, bottom - top), h/4, h/4);
}
void DecodeTrace::draw_instant(const pv::data::decode::Annotation &a, QPainter &p,
- QColor fill, QColor outline, int h, double x, int y) const
+ int h, double x, int y) const
{
const QString text = a.annotations().empty() ?
QString() : a.annotations().back();
0.0) + h;
const QRectF rect(x - w / 2, y - h / 2, w, h);
- p.setPen(outline);
- p.setBrush(fill);
p.drawRoundedRect(rect, h / 2, h / 2);
p.setPen(Qt::black);
}
void DecodeTrace::draw_range(const pv::data::decode::Annotation &a, QPainter &p,
- QColor fill, QColor outline, int h, double start,
- double end, int y) const
+ int h, double start, double end, int y, const ViewItemPaintParams &pp,
+ int row_title_width) const
{
const double top = y + .5 - h / 2;
const double bottom = y + .5 + h / 2;
const vector<QString> annotations = a.annotations();
- p.setPen(outline);
- p.setBrush(fill);
-
// If the two ends are within 1 pixel, draw a vertical line
if (start + 1.0 > end) {
p.drawLine(QPointF(start, top), QPointF(start, bottom));
if (annotations.empty())
return;
- QRectF rect(start + cap_width, y - h / 2,
- end - start - cap_width * 2, h);
+ const int ann_start = start + cap_width;
+ const int ann_end = end - cap_width;
+
+ const int real_start = std::max(ann_start, pp.left() + row_title_width);
+ const int real_end = std::min(ann_end, pp.right());
+ const int real_width = real_end - real_start;
+
+ QRectF rect(real_start, y - h / 2, real_width, h);
if (rect.width() <= 4)
return;
projects / pulseview.git / blobdiff