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flightgear/utils/fgqcanvas/canvasitem.cpp
James Turner 61bf6b0f58 QtQuick-based rendering for remote canvas
Currently displayed alongside the QPainter version, while establishing
the accuracy of each mode, but this is temporary.
2017-10-29 16:44:32 +00:00

51 lines
1.4 KiB
C++

//
// Copyright (C) 2017 James Turner zakalawe@mac.com
//
// 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 "canvasitem.h"
#include <QMatrix4x4>
class LocalTransform : public QQuickTransform
{
Q_OBJECT
public:
LocalTransform(QObject *parent) : QQuickTransform(parent) {}
void setTransform(const QMatrix4x4 &t) {
transform = t;
update();
}
void applyTo(QMatrix4x4 *matrix) const Q_DECL_OVERRIDE {
*matrix *= transform;
}
private:
QMatrix4x4 transform;
};
CanvasItem::CanvasItem(QQuickItem* pr)
: QQuickItem(pr)
, m_localTransform(new LocalTransform(this))
{
m_localTransform->prependToItem(this);
}
void CanvasItem::setTransform(const QMatrix4x4 &mat)
{
m_localTransform->setTransform(mat);
}
#include "canvasitem.moc"