--- /dev/null
+/*
+ * This file is part of the PulseView project.
+ *
+ * Copyright (C) 2013 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef PULSEVIEW_PV_VIEWS_TRACEVIEW_CURSORPAIR_HPP
+#define PULSEVIEW_PV_VIEWS_TRACEVIEW_CURSORPAIR_HPP
+
+#include "cursor.hpp"
+
+#include <memory>
+
+#include <QPainter>
+
+using std::pair;
+using std::shared_ptr;
+
+class QPainter;
+
+namespace pv {
+namespace views {
+namespace trace {
+
+class CursorPair : public TimeItem
+{
+private:
+ static const int DeltaPadding;
+ static const QColor ViewportFillColour;
+
+public:
+ /**
+ * Constructor.
+ * @param view A reference to the view that owns this cursor pair.
+ */
+ CursorPair(View &view);
+
+public:
+ /**
+ * Returns true if the item is visible and enabled.
+ */
+ bool enabled() const override;
+
+ /**
+ * Returns a pointer to the first cursor.
+ */
+ shared_ptr<Cursor> first() const;
+
+ /**
+ * Returns a pointer to the second cursor.
+ */
+ shared_ptr<Cursor> second() const;
+
+ /**
+ * Sets the time of the marker.
+ */
+ void set_time(const pv::util::Timestamp& time) override;
+
+ float get_x() const override;
+
+ QPoint point(const QRect &rect) const override;
+
+ pv::widgets::Popup* create_popup(QWidget *parent) override;
+
+public:
+ QRectF label_rect(const QRectF &rect) const override;
+
+ /**
+ * Paints the marker's label to the ruler.
+ * @param p The painter to draw with.
+ * @param rect The rectangle of the ruler client area.
+ * @param hover true if the label is being hovered over by the mouse.
+ */
+ void paint_label(QPainter &p, const QRect &rect, bool hover) override;
+
+ /**
+ * Paints the background layer of the item with a QPainter
+ * @param p the QPainter to paint into.
+ * @param pp the painting parameters object to paint with.
+ */
+ void paint_back(QPainter &p, ViewItemPaintParams &pp) override;
+
+ /**
+ * Constructs the string to display.
+ */
+ QString format_string();
+
+ void compute_text_size(QPainter &p);
+
+ pair<float, float> get_cursor_offsets() const;
+
+private:
+ shared_ptr<Cursor> first_, second_;
+
+ QSizeF text_size_;
+};
+
+} // namespace trace
+} // namespace views
+} // namespace pv
+
+#endif // PULSEVIEW_PV_VIEWS_TRACEVIEW_CURSORPAIR_HPP