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flightgear/utils/fgqcanvas/canvasitem.h
James Turner 8f205040dc Work on clipping in remote canvas
Different canvas clip reference frames are handled now, and updating
the clip nodes should not longer crash. Unfortunately, clips set
on groups don't work yet, further work is needed here.
2018-06-21 14:34:05 +01:00

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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.
#ifndef CANVASITEM_H
#define CANVASITEM_H
#include <QQuickItem>
#include "fgcanvaselement.h"
class LocalTransform;
class QSGClipNode;
class CanvasItem : public QQuickItem
{
Q_OBJECT
public:
CanvasItem(QQuickItem* pr = nullptr);
void setTransform(const QMatrix4x4& mat);
void setClip(const QRectF &clip, ReferenceFrame rf);
void setClipReferenceFrameItem(QQuickItem* refItem);
void clearClip();
QSGNode* updatePaintNode(QSGNode *, UpdatePaintNodeData *) override final;
signals:
public slots:
protected:
virtual QSGNode *updateRealPaintNode(QSGNode *oldNode, QQuickItem::UpdatePaintNodeData *d);
private:
QSGClipNode* updateClipNode(QSGClipNode* oldClipNode, QSGNode* contentNode);
LocalTransform* m_localTransform;
QRectF m_clipRect;
bool m_hasClip = false;
ReferenceFrame m_clipReferenceFrame = ReferenceFrame::GLOBAL;
QQuickItem* m_clipReferenceFrameItem = nullptr;
};
#endif // CANVASITEM_H