add launcher

source/launcher/src/MandatoryLineEdit.cpp

@@ -0,0 +1,51 @@
+#include "MandatoryLineEdit.h"
+
+#include <QColor>
+#include <QLine>
+#include <QPainter>
+#include <QPen>
+#include <QVariant>
+#include <QtCore>
+
+class QPaintEvent;
+class QWidget;
+
+MandatoryLineEdit::MandatoryLineEdit(QWidget* parent): QLineEdit(parent)
+{
+	this->setProperty(MANDATORY_AND_EMPTY, true);
+
+	connect(this, &QLineEdit::textChanged, this, &MandatoryLineEdit::changed);
+}
+
+void MandatoryLineEdit::paintEvent(QPaintEvent* event)
+{
+	QLineEdit::paintEvent(event);
+
+	if (this->property(MANDATORY_AND_EMPTY).toBool() && this->isEnabled())
+	{
+		QPainter painter(this);
+		QLine    line(4, this->height() - 4, this->width() - 4, this->height() - 4);
+		painter.setPen(QPen(QColor(255, 0, 0), 1.0, Qt::DotLine));
+		painter.drawLine(line);
+	}
+}
+
+bool MandatoryLineEdit::FindEmpty(QObject* p)
+{
+	const QList<QLineEdit*>& ch_list = p->findChildren<QLineEdit*>();
+
+	foreach (QLineEdit* ch, ch_list)
+	{
+		if (ch->isVisible() && ch->property(MANDATORY_AND_EMPTY).toBool() && ch->isEnabled())
+		{
+			return true;
+		}
+	}
+
+	return false;
+}
+
+void MandatoryLineEdit::changed(const QString& text)
+{
+	this->setProperty(MANDATORY_AND_EMPTY, text.isEmpty());
+}