8e6500ae47
Driven from the object destroyed signal, ensure children and corresponding QQ items are also destroyed when the property is removed.
65 lines
1.8 KiB
C++
65 lines
1.8 KiB
C++
//
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// Copyright (C) 2017 James Turner zakalawe@mac.com
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#ifndef FGQCANVASIMAGE_H
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#define FGQCANVASIMAGE_H
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#include <QPixmap>
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#include <QQmlEngine>
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#include "fgcanvaselement.h"
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class ImageQuickItem;
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class FGQCanvasImage : public FGCanvasElement
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{
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Q_OBJECT
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public:
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FGQCanvasImage(FGCanvasGroup* pr, LocalProp* prop);
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CanvasItem* createQuickItem(QQuickItem *parent) override;
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CanvasItem* quickItem() const override;
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protected:
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virtual void doPaint(FGCanvasPaintContext* context) const override;
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virtual void markStyleDirty() override;
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void doDestroy() override;
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void doPolish() override;
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private slots:
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void markImageDirty();
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void markSourceDirty();
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private:
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bool onChildAdded(LocalProp *prop) override;
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void rebuildImage() const;
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void recomputeSourceRect() const;
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private:
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mutable bool _imageDirty;
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mutable bool _sourceRectDirty = true;
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mutable QPixmap _image;
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QString _source;
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mutable QSizeF _destSize;
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mutable QRectF _sourceRect;
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ImageQuickItem* _quickItem = nullptr;
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};
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#endif // FGQCANVASIMAGE_H
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