Split annotation data set into rows, and improved painting.

[pulseview.git] / pv / data / decode / rowdata.h

diff --git a/pv/data/decode/rowdata.h b/pv/data/decode/rowdata.h
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+++ b/pv/data/decode/rowdata.h
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+/*
+ * This file is part of the PulseView project.
+ *
+ * Copyright (C) 2014 Joel Holdsworth <joel@airwebreathe.org.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+#ifndef PULSEVIEW_PV_DATA_DECODE_ROWDATA_H
+#define PULSEVIEW_PV_DATA_DECODE_ROWDATA_H
+
+#include <vector>
+
+#include "annotation.h"
+
+namespace pv {
+namespace data {
+namespace decode {
+
+class RowData
+{
+public:
+       RowData();
+
+public:
+       uint64_t get_max_sample() const;
+
+       /**
+        * Extracts sorted annotations between two period into a vector.
+        */
+       void get_annotation_subset(
+               std::vector<pv::data::decode::Annotation> &dest,
+               uint64_t start_sample, uint64_t end_sample) const;
+
+       void push_annotation(const Annotation& a);
+
+private:
+       bool index_entry_start_sample_gt(
+               const uint64_t sample, const size_t index) const;
+       bool index_entry_end_sample_lt(
+               const size_t index, const uint64_t sample) const;
+       bool index_entry_end_sample_gt(
+               const uint64_t sample, const size_t index) const;
+
+private:
+       std::vector<Annotation> _annotations;
+
+       /**
+        * _ann_start_index and _ann_end_index contain lists of annotions
+        * (represented by offsets in the _annotations vector), sorted in
+        * ascending ordered by the start_sample and end_sample respectively.
+        */
+       std::vector<size_t> _ann_start_index, _ann_end_index;
+};
+
+}
+} // data
+} // pv
+
+#endif // PULSEVIEW_PV_DATA_DECODE_ROWDATA_H