X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fwidgets%2Ftimestampspinbox.cpp;fp=pv%2Fwidgets%2Ftimestampspinbox.cpp;h=703da6ea13cb51aaf2f9581c4cbbbbea7cc19def;hp=0000000000000000000000000000000000000000;hb=806d3e1eb3d60e93ff95d23e79588a0486730967;hpb=af95045e903a0d2ac5aac63095eb124038be40c9

diff --git a/pv/widgets/timestampspinbox.cpp b/pv/widgets/timestampspinbox.cpp
new file mode 100644
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+++ b/pv/widgets/timestampspinbox.cpp
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+/*
+ * 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