/*******************************************************************************
 * gui/common/RSPlainTextEdit.cpp                                              *
 *                                                                             *
 * Copyright (C) 2013 RetroShare Team <retroshare.project@gmail.com>           *
 *                                                                             *
 * This program is free software: you can redistribute it and/or modify        *
 * it under the terms of the GNU Affero General Public License as              *
 * published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.                         *
 *                                                                             *
 * You should have received a copy of the GNU Affero General Public License    *
 * along with this program. If not, see <https://www.gnu.org/licenses/>.       *
 *                                                                             *
 *******************************************************************************/

#include <QPainter>

#include "RSPlainTextEdit.h"

RSPlainTextEdit::RSPlainTextEdit(QWidget *parent)
	: QPlainTextEdit(parent)
{
}

void RSPlainTextEdit::setPlaceholderText(const QString &text)
{
	mPlaceholderText = text;
	viewport()->repaint();
}

void RSPlainTextEdit::paintEvent(QPaintEvent *event)
{
	QPlainTextEdit::paintEvent(event);

	if (mPlaceholderText.isEmpty() == false && toPlainText().isEmpty()) {
		QWidget *vieportWidget = viewport();
		QPainter painter(vieportWidget);

		QPen pen = painter.pen();
		QColor color = pen.color();
		color.setAlpha(128);
		pen.setColor(color);
		painter.setPen(pen);

		painter.drawText(QRect(QPoint(), vieportWidget->size()), Qt::AlignHCenter | Qt::AlignVCenter | Qt::TextWordWrap, mPlaceholderText);
	}
}