Add a spin box widget for timestamp values

[pulseview.git] / pv / widgets / timestampspinbox.hpp

diff --git a/pv/widgets/timestampspinbox.hpp b/pv/widgets/timestampspinbox.hpp
new file mode 100644 (file)
index 0000000..bac7cac
--- /dev/null
+++ b/pv/widgets/timestampspinbox.hpp
@@ -0,0 +1,93 @@
+/*
+ * This file is part of the PulseView project.
+ *
+ * Copyright (C) 2015 Jens Steinhauser <jens.steinhauser@gmail.com>
+ *
+ * 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_WIDGETS_TIMESTAMPSPINBOX_HPP
+#define PULSEVIEW_PV_WIDGETS_TIMESTAMPSPINBOX_HPP
+
+#include "pv/util.hpp"
+
+#include <QAbstractSpinBox>
+
+namespace pv {
+namespace widgets {
+
+class TimestampSpinBox : public QAbstractSpinBox
+{
+       Q_OBJECT
+
+       Q_PROPERTY(unsigned precision
+               READ precision
+               WRITE setPrecision)
+
+       // Needed because of some strange behaviour of the Qt4 MOC that would add
+       // a reference to a 'staticMetaObject' member of 'pv::util' (the namespace)
+       // if pv::util::Timestamp is used directly in the Q_PROPERTY macros below.
+       // Didn't happen with the Qt5 MOC in this case, however others have had
+       // similar problems with Qt5: https://bugreports.qt.io/browse/QTBUG-37519
+       typedef pv::util::Timestamp Timestamp;
+
+       Q_PROPERTY(Timestamp singleStep
+               READ singleStep
+               WRITE setSingleStep)
+
+       Q_PROPERTY(Timestamp value
+               READ value
+               WRITE setValue
+               NOTIFY valueChanged
+               USER true)
+
+public:
+       TimestampSpinBox(QWidget* parent = nullptr);
+
+       void stepBy(int steps) override;
+
+       StepEnabled stepEnabled() const override;
+
+       unsigned precision() const;
+       void setPrecision(unsigned precision);
+
+       const pv::util::Timestamp& singleStep() const;
+       void setSingleStep(const pv::util::Timestamp& step);
+
+       const pv::util::Timestamp& value() const;
+
+       QSize minimumSizeHint() const override;
+
+public Q_SLOTS:
+       void setValue(const pv::util::Timestamp& val);
+
+Q_SIGNALS:
+       void valueChanged(const pv::util::Timestamp&);
+
+private Q_SLOTS:
+       void on_editingFinished();
+
+private:
+       unsigned precision_;
+       pv::util::Timestamp stepsize_;
+       pv::util::Timestamp value_;
+
+       void updateEdit();
+};
+
+} // widgets
+} // pv
+
+#endif