kwin/plugins/platforms/virtual/scene_qpainter_virtual_backend.cpp
Martin Gräßlin 758d41d6bf Paint the software cursor directly in SceneQPainter
Summary:
No need to delegate the painting of the software cursor into the backend.
The core has enough information to perform the rendering itself.

This change means less code duplication and all platforms which might use
a software cursor in QPainter compositor gain support for it without any
further adjustments.

Reviewers: #kwin, #plasma_on_wayland

Subscribers: plasma-devel, kwin

Tags: #plasma_on_wayland, #kwin

Differential Revision: https://phabricator.kde.org/D2028
2016-06-29 08:50:46 +02:00

73 lines
2 KiB
C++

/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2015 Martin Gräßlin <mgraesslin@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. If not, see <http://www.gnu.org/licenses/>.
*********************************************************************/
#include "scene_qpainter_virtual_backend.h"
#include "virtual_backend.h"
#include "cursor.h"
#include <QPainter>
namespace KWin
{
VirtualQPainterBackend::VirtualQPainterBackend(VirtualBackend *backend)
: QPainterBackend()
, m_backBuffer(backend->size(), QImage::Format_RGB32)
, m_backend(backend)
{
}
VirtualQPainterBackend::~VirtualQPainterBackend() = default;
QImage *VirtualQPainterBackend::buffer()
{
return &m_backBuffer;
}
bool VirtualQPainterBackend::needsFullRepaint() const
{
return true;
}
void VirtualQPainterBackend::prepareRenderingFrame()
{
}
void VirtualQPainterBackend::screenGeometryChanged(const QSize &size)
{
if (m_backBuffer.size() != size) {
m_backBuffer = QImage(size, QImage::Format_RGB32);
m_backBuffer.fill(Qt::black);
}
}
void VirtualQPainterBackend::present(int mask, const QRegion &damage)
{
Q_UNUSED(mask)
Q_UNUSED(damage)
if (m_backend->saveFrames()) {
m_backBuffer.save(QStringLiteral("%1/%2.png").arg(m_backend->screenshotDirPath()).arg(QString::number(m_frameCounter++)));
}
}
bool VirtualQPainterBackend::usesOverlayWindow() const
{
return false;
}
}