init

Telegram/lib_ui/ui/widgets/fields/number_input.cpp

@@ -0,0 +1,53 @@
+// This file is part of Desktop App Toolkit,
+// a set of libraries for developing nice desktop applications.
+//
+// For license and copyright information please follow this link:
+// https://github.com/desktop-app/legal/blob/master/LEGAL
+//
+#include "ui/widgets/fields/number_input.h"
+
+namespace Ui {
+
+NumberInput::NumberInput(
+	QWidget *parent,
+	const style::InputField &st,
+	rpl::producer<QString> placeholder,
+	const QString &value,
+	int limit)
+: MaskedInputField(parent, st, std::move(placeholder), value)
+, _limit(limit) {
+	if (!value.toInt() || (limit > 0 && value.toInt() > limit)) {
+		setText(QString());
+	}
+}
+
+void NumberInput::changeLimit(int limit) {
+	_limit = limit;
+}
+
+void NumberInput::correctValue(
+		const QString &was,
+		int wasCursor,
+		QString &now,
+		int &nowCursor) {
+	QString newText;
+	newText.reserve(now.size());
+	auto newPos = nowCursor;
+	for (auto i = 0, l = int(now.size()); i < l; ++i) {
+		if (now.at(i).isDigit()) {
+			newText.append(now.at(i));
+		} else if (i < nowCursor) {
+			--newPos;
+		}
+	}
+	if (!newText.toInt()) {
+		newText = QString();
+		newPos = 0;
+	} else if (_limit > 0 && newText.toInt() > _limit) {
+		newText = was;
+		newPos = wasCursor;
+	}
+	setCorrectedText(now, nowCursor, newText, newPos);
+}
+
+} // namespace Ui