Bitmap Field
This code was posted on the RIM Developer
Discussion Forum by Thorsten
Schiller.
I needed the ability to use bitmaps with my
screens. I noticed a number of conversation threads in the archives where
people wanted to do the same thing. Here's a quick and dirty class that we
are using successfully. Your milage may vary.
Thorsten
RimBitmap.hpp
-------------
class RimBitmap : public Field
{
public:
RimBitmap(const BitMap* pBitmap, int offset = 0L);
virtual ~RimBitmap();
virtual void Paint(Graphics& g);
virtual FIELDTYPE GetFieldType(FIELDTYPE * pDerived = NULL ) { return
NULL_FIELD; }
virtual void ResetDimensionDependentData() { }
virtual int QueryLineHeight(int const MaximumRelevant);
virtual int GetHeight() const;
private:
const BitMap* m_pBitmap;
int m_offset;
}; // class RimBitmap
RimBitmap.cpp
-------------
#include "RimBitmap.hpp"
RimBitmap::RimBitmap(const BitMap* pBitmap,
int offset)
: m_pBitmap(pBitmap),m_offset(offset)
{
} /* RimBitmap() */
RimBitmap::~RimBitmap()
{
} /* ~RimBitmap() */
void RimBitmap::Paint(Graphics& g)
{
g.DrawBitmap(m_pBitmap, 1 + m_offset, 1);
} /* Paint() */
int RimBitmap::GetHeight() const
{
return m_pBitmap->high;
} /* GetHeight() */
int RimBitmap::QueryLineHeight(int const
maximumRelevant)
{
// no idea what this value means but since it's
// a pure virtual we gotta define it...
return GetHeight();
} /* QueryLineHeight() */
