initial commit for 0.4.18 version of Telegram Desktop

Telegram/SourceFiles/gui/countrycodeinput.cpp

@@ -0,0 +1,83 @@
+/*
+This file is part of Telegram Desktop,
+an unofficial desktop messaging app, see https://telegram.org
+
+Telegram Desktop 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 3 of the License, or
+(at your option) any later version.
+
+It 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.
+
+Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
+Copyright (c) 2014 John Preston, https://tdesktop.com
+*/
+#include "stdafx.h"
+#include "style.h"
+
+#include "gui/countrycodeinput.h"
+#include "gui/countryinput.h"
+
+CountryCodeInput::CountryCodeInput(QWidget *parent, const style::flatInput &st) : FlatInput(parent, st), _nosignal(false) {
+
+}
+
+void CountryCodeInput::startErasing(QKeyEvent *e) {
+	setFocus();
+	keyPressEvent(e);
+}
+
+void CountryCodeInput::codeSelected(const QString &code) {
+	QString old(text());
+	setText('+' + code);
+	_nosignal = true;
+	correctValue(0, old);
+	_nosignal = false;
+	emit changed();
+}
+
+void CountryCodeInput::correctValue(QKeyEvent *e, const QString &was) {
+	QString oldText(text()), newText, addToNumber;
+	int oldPos(cursorPosition()), newPos(-1), oldLen(oldText.length()), start = 0, digits = 5;
+	newText.reserve(oldLen + 1);
+	newText += '+';
+	if (oldLen && oldText[0] == '+') {
+		++start;
+	}
+	for (int i = start; i < oldLen; ++i) {
+		QChar ch(oldText[i]);
+		if (ch.isDigit()) {
+			if (!digits || !--digits) {
+				addToNumber += ch;
+			} else {
+				newText += ch;
+			}
+		}
+		if (i == oldPos) {
+			newPos = newText.length();
+		}
+	}
+	if (!addToNumber.isEmpty()) {
+		QString validCode = findValidCode(newText.mid(1));
+		addToNumber = newText.mid(1 + validCode.length()) + addToNumber;
+		newText = '+' + validCode;
+	}
+	if (newPos < 0 || newPos > newText.length()) {
+		newPos = newText.length();
+	}
+	if (newText != oldText) {
+		setText(newText);
+		if (newPos != oldPos) {
+			setCursorPosition(newPos);
+		}
+	}
+	if (!_nosignal && was != newText) {
+		emit codeChanged(newText.mid(1));
+	}
+	if (!addToNumber.isEmpty()) {
+		emit addedToNumber(addToNumber);
+	}
+}