+ const srd_proto_data_annotation *const pda = (const srd_proto_data_annotation*)pdata->data;
+
+ uint32_t ann_class_id = pda->ann_class;
+
+ // Look up the longest annotation text to see if we have it in storage.
+ // This implies that if the longest text is the same, the shorter texts
+ // are expected to be the same, too. PDs that violate this assumption
+ // should be considered broken.
+ const char* const* ann_texts = (char**)pda->ann_text;
+ const QString ann0 = QString::fromUtf8(ann_texts[0]);
+ vector<QString>* storage_entry = &(ann_texts_[ann0]);
+
+ if (storage_entry->empty()) {
+ while (*ann_texts) {
+ storage_entry->emplace_back(QString::fromUtf8(*ann_texts));
+ ann_texts++;
+ }
+ storage_entry->shrink_to_fit();
+ }
+
+
+ const Annotation* result = nullptr;
+
+ // We insert the annotation in a way so that the annotation list
+ // is sorted by start sample. Otherwise, we'd have to sort when
+ // painting, which is expensive
+
+ if (pdata->start_sample < prev_ann_start_sample_) {
+ // Find location to insert the annotation at
+
+ auto it = annotations_.end();
+ do {
+ it--;
+ } while ((it->start_sample() > pdata->start_sample) && (it != annotations_.begin()));
+
+ // Allow inserting at the front
+ if (it != annotations_.begin())
+ it++;
+
+ it = annotations_.emplace(it, pdata->start_sample, pdata->end_sample,
+ storage_entry, ann_class_id, this);
+ result = &(*it);
+ } else {
+ annotations_.emplace_back(pdata->start_sample, pdata->end_sample,
+ storage_entry, ann_class_id, this);
+ result = &(annotations_.back());
+ prev_ann_start_sample_ = pdata->start_sample;
+ }
+
+ return result;