--- /dev/null
+/*
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef PULSEVIEW_PV_VIEWS_TRACEVIEW_VIEWITEMPAINTPARAMS_HPP
+#define PULSEVIEW_PV_VIEWS_TRACEVIEW_VIEWITEMPAINTPARAMS_HPP
+
+#include "pv/util.hpp"
+
+#include <QFont>
+#include <QRect>
+
+namespace pv {
+namespace views {
+namespace trace {
+
+class ViewItemPaintParams
+{
+public:
+ ViewItemPaintParams(
+ const QRect &rect, double scale, const pv::util::Timestamp& offset);
+
+ QRect rect() const {
+ return rect_;
+ }
+
+ double scale() const {
+ return scale_;
+ }
+
+ const pv::util::Timestamp& offset() const {
+ return offset_;
+ }
+
+ int left() const {
+ return rect_.left();
+ }
+
+ int right() const {
+ return rect_.right();
+ }
+
+ int top() const {
+ return rect_.top();
+ }
+
+ int bottom() const {
+ return rect_.bottom();
+ }
+
+ int width() const {
+ return rect_.width();
+ }
+
+ int height() const {
+ return rect_.height();
+ }
+
+ double pixels_offset() const {
+ return (offset_ / scale_).convert_to<double>();
+ }
+
+ bool next_bg_colour_state() {
+ const bool state = bg_colour_state_;
+ bg_colour_state_ = !bg_colour_state_;
+ return state;
+ }
+
+public:
+ static QFont font();
+
+ static int text_height();
+
+private:
+ QRect rect_;
+ double scale_;
+ pv::util::Timestamp offset_;
+ bool bg_colour_state_;
+};
+
+} // namespace trace
+} // namespace views
+} // namespace pv
+
+#endif // PULSEVIEW_PV_VIEWS_TRACEVIEW_VIEWITEMPAINTPARAMS_HPP