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Diffstat (limited to 'kpovmodeler/pmvariant.h')
| -rw-r--r-- | kpovmodeler/pmvariant.h | 221 |
1 files changed, 221 insertions, 0 deletions
diff --git a/kpovmodeler/pmvariant.h b/kpovmodeler/pmvariant.h new file mode 100644 index 00000000..01519a01 --- /dev/null +++ b/kpovmodeler/pmvariant.h @@ -0,0 +1,221 @@ +//-*-C++-*- +/* +************************************************************************** + description + -------------------- + copyright : (C) 2002 by Andreas Zehender + email : zehender@kde.org +************************************************************************** + +************************************************************************** +* * +* 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. * +* * +**************************************************************************/ + +#ifndef PMVARIANT_H +#define PMVARIANT_H + +#include <qstring.h> +#include "pmcolor.h" +#include "pmvector.h" +#include "pmthreestate.h" + +class PMObject; + +/** + * Variant class for KPovModeler. + * + * Can store and convert: int, unsigned int, double, bool, + * PMThreeState, QString, PMVector, PMColor, PMObject*. + * + * Enums are stored as QString. + * + * The variant can store one type at a time. You can try to convert + * the type with the convertTo* methods. These will return bool on success. + * If the variant could not be converted, the old type and value + * did not change. + */ + +class PMVariant +{ +public: + /** + * Type of stored data + */ + enum PMVariantDataType { Integer, Unsigned, Double, Bool, + ThreeState, String, Vector, Color, + ObjectPointer, None }; + /** + * Creates an empty variant object + */ + PMVariant( ); + /** + * Stores an integer + */ + PMVariant( int data ); + /** + * Stores an unsigned integer + */ + PMVariant( unsigned int data ); + /** + * Stores a double + */ + PMVariant( double data ); + /** + * Stores a boolean + */ + PMVariant( bool data ); + /** + * Stores a @ref PMThreeState + */ + PMVariant( PMThreeState data ); + /** + * Stores a string + */ + PMVariant( const QString& data ); + /** + * Stores a @ref PMVector + */ + PMVariant( const PMVector& data ); + /** + * Stores a @ref PMColor + */ + PMVariant( const PMColor& data ); + /** + * Stores a pointer to a PMObject + */ + PMVariant( PMObject* obj ); + /** + * Copy constructor + */ + PMVariant( const PMVariant& v ); + /** + * Deletes the variant + */ + ~PMVariant( ); + + /** + * Assignment operator + */ + PMVariant& operator= ( const PMVariant& v ); + + /** + * Returns true if no data is stored + */ + bool isNull( ) const { return !m_pData; } + + /** + * Sets the integer value + */ + void setInt( int data ); + /** + * Sets the unsigned value + */ + void setUnsigned( unsigned int data ); + /** + * Sets the double value + */ + void setDouble( double data ); + /** + * Sets the boolean value + */ + void setBool( bool data ); + /** + * Sets the PMThreeState value + */ + void setThreeState( PMThreeState data ); + /** + * Sets the string data + */ + void setString( const QString& data ); + /** + * Sets the vector data + */ + void setVector( const PMVector& data ); + /** + * Sets the color data + */ + void setColor( const PMColor& data ); + /** + * Sets the object pointer + */ + void setObject( PMObject* o ); + + /** + * Returns the integer value. Data type has to be Integer! + */ + int intData( ) const; + /** + * Returns the unsigned value. Data type has to be Unsigned! + */ + int unsignedData( ) const; + /** + * Returns the double value. Data type has to be Double! + */ + double doubleData( ) const; + /** + * Returns the boolean value. Data type has to be Bool! + */ + bool boolData( ) const; + /** + * Returns the PMThreeState value. Data type has to be ThreeState! + */ + PMThreeState threeStateData( ) const; + /** + * Returns the string data. Data type has to be String! + */ + QString stringData( ) const; + /** + * Returns the vector data. Data type has to be Vector! + */ + PMVector vectorData( ) const; + /** + * Returns the color data. Data type has to be Color! + */ + PMColor colorData( ) const; + /** + * Returns the object pointer. Data type has to be ObjectPointer! + */ + PMObject* objectData( ) const; + + /** + * Converts the variant to an integer. Returns true if possible + */ + bool convertTo( PMVariantDataType t ); + + /** + * Returns the type of the stored data + */ + PMVariantDataType dataType( ) const { return m_dataType; } + + /** + * Returns the value of the stored data in string format + */ + QString asString( ) const; + /** + * Sets the value of the variant based on the string + */ + bool fromString( const PMVariant::PMVariantDataType t, const QString& value ); +private: + void clear( ); + + /** + * a pointer to the stored data + */ + void* m_pData; + /** + * Type of the data + */ + PMVariantDataType m_dataType; +}; + +// Streaming operators for PMVariant +QDataStream& operator<<( QDataStream& stream, const PMVariant& value ); +QDataStream& operator>>( QDataStream& stream, PMVariant& value ); + + +#endif |