kwin/clients/kde/DBWidget.cpp

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/*
Default KWin client
Copyright 2000
Rik Hemsley <rik@kde.org>
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; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
#include "DBWidget.h"
namespace Default
{
DBWidget::DBWidget(QWidget * parent, const char * name)
: QWidget(parent, name, WResizeNoErase | WRepaintNoErase | WPaintUnclipped |
WNorthWestGravity)
{
buf_.resize(20, 20);
setBackgroundMode(NoBackground);
}
void
DBWidget::updateDisplay()
{
updatePixmap();
repaint(false);
}
void
DBWidget::paintEvent(QPaintEvent * e)
{
QRect r(e->rect());
bitBlt(this, r.topLeft(), &buf_, r, Qt::CopyROP);
}
void
DBWidget::resizeEvent(QResizeEvent * e)
{
QWidget::resizeEvent(e);
if ( (buf_.width() < size().width()) ||
(QABS(size().width() - buf_.width()) > 128) )
buf_.resize(((size().width() / 128)* 128) + 128, size().height());
updateDisplay();
}
} // End namespace
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