105 lines
2.2 KiB
C
105 lines
2.2 KiB
C
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/******************************************************************************
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* QSkinny - Copyright (C) 2016 Uwe Rathmann
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* This file may be used under the terms of the QSkinny License, Version 1.0
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*****************************************************************************/
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#ifndef QSK_ICON_H
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#define QSK_ICON_H
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#include "QskGlobal.h"
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#include "QskGraphic.h"
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#include <qurl.h>
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#include <qmetatype.h>
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#include <qshareddata.h>
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/*
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Most controls offer 2 way to pass an icon:
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- URL
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- QskGraphic
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For the vast majority of the application icons URLs are used
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that will be loaded at runtime by a QskGraphicProvider.
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( QML code always uses URLs )
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QskIcon implements a lazy loading strategy, that avoids unsatisfying
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startup performance from loading to many icons in advance.
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*/
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class QSK_EXPORT QskIcon
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{
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Q_GADGET
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Q_PROPERTY( QskGraphic graphic READ graphic WRITE setGraphic )
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Q_PROPERTY( QUrl source READ source WRITE setSource )
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public:
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QskIcon();
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QskIcon( const QUrl& );
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QskIcon( const QskGraphic& );
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bool operator==( const QskIcon& ) const noexcept;
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bool operator!=( const QskIcon& ) const noexcept;
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bool isNull() const;
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void setSource( const QUrl& );
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QUrl source() const noexcept;
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void setGraphic( const QskGraphic& );
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QskGraphic graphic() const;
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QskGraphic maybeGraphic() const noexcept;
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QskHashValue hash( QskHashValue ) const;
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private:
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QUrl m_source;
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class Data : public QSharedData
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{
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public:
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~Data() { delete graphic; }
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QskGraphic* graphic = nullptr;
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};
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mutable QExplicitlySharedDataPointer< Data > m_data;
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};
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Q_DECLARE_METATYPE( QskIcon )
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inline bool QskIcon::isNull() const
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{
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if ( m_data->graphic )
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return m_data->graphic->isNull();
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return m_source.isEmpty();
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}
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inline QUrl QskIcon::source() const noexcept
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{
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return m_source;
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}
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inline QskGraphic QskIcon::maybeGraphic() const noexcept
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{
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return m_data->graphic ? *m_data->graphic : QskGraphic();
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}
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inline bool QskIcon::operator!=( const QskIcon& other ) const noexcept
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{
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return ( !( *this == other ) );
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}
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#ifndef QT_NO_DEBUG_STREAM
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class QDebug;
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QSK_EXPORT QDebug operator<<( QDebug, const QskIcon& );
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#endif
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#endif
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