+/*
+ * 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
+ */
+
+#include "timestampspinbox.hpp"
+
+#include <QLineEdit>
+#include <QRegExp>
+
+namespace pv {
+namespace widgets {
+
+TimestampSpinBox::TimestampSpinBox(QWidget* parent)
+ : QAbstractSpinBox(parent)
+ , precision_(9)
+ , stepsize_("1e-6")
+{
+ connect(this, SIGNAL(editingFinished()), this, SLOT(on_editingFinished()));
+
+ updateEdit();
+}
+
+void TimestampSpinBox::stepBy(int steps)
+{
+ setValue(value_ + steps * stepsize_);
+}
+
+QAbstractSpinBox::StepEnabled TimestampSpinBox::stepEnabled() const
+{
+ return QAbstractSpinBox::StepUpEnabled | QAbstractSpinBox::StepDownEnabled;
+}
+
+unsigned TimestampSpinBox::precision() const
+{
+ return precision_;
+}
+
+void TimestampSpinBox::setPrecision(unsigned precision)
+{
+ precision_ = precision;
+ updateEdit();
+}
+
+const pv::util::Timestamp& TimestampSpinBox::singleStep() const
+{
+ return stepsize_;
+}
+
+void TimestampSpinBox::setSingleStep(const pv::util::Timestamp& step)
+{
+ stepsize_ = step;
+}
+
+const pv::util::Timestamp& TimestampSpinBox::value() const
+{
+ return value_;
+}
+
+QSize TimestampSpinBox::minimumSizeHint() const
+{
+ const QFontMetrics fm(fontMetrics());
+ const int l = round(value_).str().size() + precision_ + 10;
+ const int w = fm.width(QString(l, '0'));
+ const int h = lineEdit()->minimumSizeHint().height();
+ return QSize(w, h);
+}
+
+void TimestampSpinBox::setValue(const pv::util::Timestamp& val)
+{
+ if (val == value_)
+ return;
+
+ value_ = val;
+ updateEdit();
+ Q_EMIT valueChanged(value_);
+}
+
+void TimestampSpinBox::on_editingFinished()
+{
+ if (!lineEdit()->isModified())
+ return;
+ lineEdit()->setModified(false);
+
+ QRegExp re(R"(\s*([-+]?)\s*([0-9]+\.?[0-9]*).*)");
+
+ if (re.exactMatch(text())) {
+ QStringList captures = re.capturedTexts();
+ captures.removeFirst(); // remove entire match
+ QString str = captures.join("");
+ setValue(pv::util::Timestamp(str.toStdString()));
+ }
+ else {
+ // replace the malformed entered string with the old value
+ updateEdit();
+ }
+}
+
+void TimestampSpinBox::updateEdit()
+{
+ QString newtext = pv::util::format_si_value(
+ value_, "s", 8, precision_);
+ lineEdit()->setText(newtext);
+}
+
+} // widgets
+} // pv
projects / pulseview.git / commitdiff