46 lines
1 KiB
C
46 lines
1 KiB
C
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#ifndef FGCANVASGROUP_H
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#define FGCANVASGROUP_H
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#include "fgcanvaselement.h"
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class FGCanvasGroup : public FGCanvasElement
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{
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Q_OBJECT
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public:
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explicit FGCanvasGroup(FGCanvasGroup* pr, LocalProp* prop);
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const FGCanvasElementVec& children() const;
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void markChildZIndicesDirty() const;
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bool hasChilden() const;
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unsigned int childCount() const;
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FGCanvasElement* childAt(unsigned int index) const;
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unsigned int indexOfChild(const FGCanvasElement* e) const;
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signals:
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void childAdded();
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void childRemoved(int index);
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protected:
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virtual void doPaint(FGCanvasPaintContext* context) const override;
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bool onChildAdded(LocalProp *prop) override;
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bool onChildRemoved(LocalProp *prop) override;
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virtual void markStyleDirty() override;
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private:
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void markCachedSymbolDirty();
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int indexOfChildWithProp(LocalProp *prop) const;
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private:
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mutable FGCanvasElementVec _children;
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mutable bool _zIndicesDirty = false;
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mutable bool _cachedSymbolDirty = false;
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};
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#endif // FGCANVASGROUP_H
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