+void DecodeTrace::draw_annotations(vector<pv::data::decode::Annotation> annotations,
+ QPainter &p, int h, const ViewItemPaintParams &pp, int y,
+ size_t base_colour)
+{
+ using namespace pv::data::decode;
+
+ vector<Annotation> a_block;
+ int prev_ann_pos = INT_MIN;
+
+ double samples_per_pixel, pixels_offset;
+ tie(pixels_offset, samples_per_pixel) =
+ get_pixels_offset_samples_per_pixel();
+
+ // Gather all annotations that form a visual "block" and draw them as such
+ for (const Annotation &a : annotations) {
+
+ const int end = a.end_sample() / samples_per_pixel - pixels_offset;
+ const int delta = end - prev_ann_pos;
+
+ // Some annotations are in reverse order, so we cannot
+ // simply check for delta > 1
+ if (abs(delta) > 1) {
+ // Block was broken, draw it
+ if (a_block.size() == 1)
+ draw_annotation(a_block.front(), p, h, pp, y, base_colour);
+ else
+ if (a_block.size() > 0)
+ draw_annotation_block(a_block, p, h, pp, y, base_colour);
+
+ a_block.clear();
+ }
+
+ a_block.push_back(a);
+ prev_ann_pos = end;
+ }
+
+ if (a_block.size() == 1)
+ draw_annotation(a_block.front(), p, h, pp, y, base_colour);
+ else
+ draw_annotation_block(a_block, p, h, pp, y, base_colour);
+}
+