RetroShare/retroshare-gui/src/gui/common/RSTextEdit.cpp
2014-12-25 02:39:40 +00:00

58 lines
1.8 KiB
C++

/****************************************************************
*
* RetroShare is distributed under the following license:
*
* Copyright (C) 2014, RetroShare Team
*
* 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 Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
****************************************************************/
#include <QPainter>
#include "RSTextEdit.h"
RSTextEdit::RSTextEdit(QWidget *parent)
: QTextEdit(parent)
{
}
#if QT_VERSION < 0x050200
void RSTextEdit::setPlaceholderText(const QString &text)
{
mPlaceholderText = text;
viewport()->repaint();
}
void RSTextEdit::paintEvent(QPaintEvent *event)
{
QTextEdit::paintEvent(event);
if (!mPlaceholderText.isEmpty() && document()->isEmpty()) {
QWidget *vieportWidget = viewport();
QPainter painter(vieportWidget);
QPen pen = painter.pen();
QColor color = pen.color();
color.setAlpha(128);
pen.setColor(color);
painter.setPen(pen);
const int margin = int(document()->documentMargin());
painter.drawText(viewport()->rect().adjusted(margin, margin, -margin, -margin), Qt::AlignTop | Qt::TextWordWrap, mPlaceholderText);
}
}
#endif