Initial work moving ruler into the pv::view::Ruler widget

[pulseview.git] / pv / view / ruler.h

diff --git a/pv/view/ruler.h b/pv/view/ruler.h
new file mode 100644 (file)
index 0000000..7eccc8c
--- /dev/null
+++ b/pv/view/ruler.h
@@ -0,0 +1,55 @@
+/*
+ * This file is part of the sigrok project.
+ *
+ * Copyright (C) 2012 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 PV_VIEW_RULER_H
+#define PV_VIEW_RULER_H
+
+#include <QWidget>
+
+namespace pv {
+namespace view {
+
+class View;
+
+class Ruler : public QWidget
+{
+       Q_OBJECT
+
+private:
+       static const int MinorTickSubdivision;
+       static const int ScaleUnits[3];
+
+       static const QString SIPrefixes[9];
+       static const int FirstSIPrefixPower;
+
+public:
+       Ruler(View &parent);
+
+private:
+       void paintEvent(QPaintEvent *event);
+
+private:
+       View &_view;
+};
+
+} // namespace view
+} // namespace pv
+
+#endif // PV_VIEW_HEADER_H