OSGQFieldValueLabel.h

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#ifndef _OSGQFIELDVALUELABEL_H_
#define _OSGQFIELDVALUELABEL_H_
#ifdef __sgi
#pragma once
#endif

#include "OSGWindowQTDef.h"

#include <OSGBaseTypes.h>
#include <OSGVector.h>
#include <OSGFieldContainerPtr.h>

#include <qnamespace.h>
#include <qsize.h>
#include <qstring.h>

class QPainter;
class QColorGroup;
class QRect;

OSG_BEGIN_NAMESPACE

class QFieldViewBase;

class OSG_WINDOWQTLIB_DLLMAPPING QFieldValueLabelBase : public Qt
{
public:
    QFieldValueLabelBase(QFieldViewBase *pView, UInt32 uiIndex);
    
    virtual ~QFieldValueLabelBase(void);
    
    virtual void   paint(      QPainter    *pPainter, 
                         const QColorGroup &colGrp,   const QRect &rect) = 0;

    virtual QSize  sizeHint       (void          ) = 0;
    virtual QSize  minimumSizeHint(void          ) = 0;

            void   setIndex       (UInt32 uiIndex);
            UInt32 getIndex       (void          ) const;

    virtual void   valueChanged   (void          ) = 0;
 
protected:
          QFieldViewBase    *getFieldView     (void);
    const QFieldViewBase    *getFieldView     (void) const;

          FieldContainerPtr &getFieldContainer(void);
    const FieldContainerPtr &getFieldContainer(void) const;

          UInt32             getFieldId       (void) const;
    
          UInt32             getAspect        (void) const;
    
          Field             *getFieldPtr      (void);
    const Field             *getFieldPtr      (void) const;

private:
    QFieldViewBase *_pView;
    UInt32          _uiIndex;
};

class OSG_WINDOWQTLIB_DLLMAPPING QGenericFieldValueLabel : 
    public QFieldValueLabelBase
{
public:
    QGenericFieldValueLabel(QFieldViewBase *pView, UInt32 uiIndex);
    
    static QFieldValueLabelBase *create(QFieldViewBase *pView, UInt32 uiIndex);

    virtual ~QGenericFieldValueLabel(void);

    virtual void paint(      QPainter    *pPainter, 
                       const QColorGroup &colGrp,   const QRect &rect);
    
    virtual QSize sizeHint       (void);
    virtual QSize minimumSizeHint(void);

    virtual void  valueChanged   (void);

protected:
    const QString &getCachedValue(void);
    const QSize   &getCachedSize (void);

private:
    typedef QFieldValueLabelBase Inherited;

          void     updateCache   (void);

    QString _strCachedVal;
    QSize   _cachedSize;
    bool    _bCacheValid;
};

OSG_END_NAMESPACE

#define OSGQFIELDVALUELABEL_HEADER_CVSID "@(#)$Id: OSGQFieldValueLabel.h,v 1.2 2003/05/16 13:54:29 neumannc Exp $"

#include "OSGQFieldValueLabel.inl"

#endif /* _OSGQFIELDVALUELABEL_H_ */

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