]> sigrok.org Git - pulseview.git/blobdiff - pv/views/trace/viewitempaintparams.hpp
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[pulseview.git] / pv / views / trace / viewitempaintparams.hpp
diff --git a/pv/views/trace/viewitempaintparams.hpp b/pv/views/trace/viewitempaintparams.hpp
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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, 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