flightgear/utils/fgqcanvas/fgcanvaspath.h
2022-10-20 20:29:11 +08:00

81 lines
2.3 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.
#ifndef FGCANVASPATH_H
#define FGCANVASPATH_H
#include "fgcanvaselement.h"
#include <QPainterPath>
#include <QPen>
class PathQuickItem;
class FGCanvasPath : public FGCanvasElement
{
public:
FGCanvasPath(FGCanvasGroup* pr, LocalProp* prop);
void dumpElement() override;
protected:
virtual void doPaint(FGCanvasPaintContext* context) const override;
void doPolish() override;
virtual void markStyleDirty() override;
CanvasItem* createQuickItem(QQuickItem *parent) override;
CanvasItem* quickItem() const override;
void doDestroy() override;
private:
void markPathDirty();
void markStrokeDirty();
private:
bool onChildAdded(LocalProp *prop) override;
bool onChildRemoved(LocalProp* prop) override;
void rebuildPath() const;
void rebuildPen() const;
void rebuildPathFromCommands(const std::vector<int>& commands, const std::vector<float>& coords) const;
bool rebuildFromSVGData(std::vector<int>& commands, std::vector<float>& coords) const;
bool rebuildFromRect(std::vector<int> &commands, std::vector<float> &coords) const;
private:
enum PaintType
{
Path,
Rect,
RoundRect
};
mutable bool _pathDirty = true;
mutable QPainterPath _painterPath;
mutable bool _penDirty = true;
mutable QPen _stroke;
bool _isRect = false;
mutable PaintType _paintType = Path;
mutable QRectF _rect;
mutable QSizeF _roundRectRadius;
PathQuickItem* _quickPath = nullptr;
};
#endif // FGCANVASPATH_H