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/*
*******************************************************************************
*
* Copyright (C) 1999-2003, International Business Machines
* Corporation and others. All Rights Reserved.
*
*******************************************************************************
* file name: GDIFontInstance.h
*
* created on: 08/09/2000
* created by: Eric R. Mader
*/
#ifndef __GDIFONTINSTANCE_H
#define __GDIFONTINSTANCE_H
#include <windows.h>
#include "layout/LETypes.h"
#include "layout/LEFontInstance.h"
#include "RenderingSurface.h"
#include "FontTableCache.h"
#include "cmaps.h"
class GDIFontInstance;
class GDISurface : public RenderingSurface
{
public:
GDISurface(HDC theHDC);
virtual ~GDISurface();
virtual void drawGlyphs(const LEFontInstance *font, const LEGlyphID *glyphs, le_int32 count,
const float *positions, le_int32 x, le_int32 y, le_int32 width, le_int32 height);
void setFont(const GDIFontInstance *font);
HDC getHDC() const;
void setHDC(HDC theHDC);
private:
HDC fHdc;
const GDIFontInstance *fCurrentFont;
};
inline HDC GDISurface::getHDC() const
{
return fHdc;
}
class GDIFontInstance : public LEFontInstance, protected FontTableCache
{
protected:
GDISurface *fSurface;
HFONT fFont;
le_int32 fPointSize;
le_int32 fUnitsPerEM;
le_int32 fAscent;
le_int32 fDescent;
le_int32 fLeading;
float fDeviceScaleX;
float fDeviceScaleY;
CMAPMapper *fMapper;
virtual const void *readFontTable(LETag tableTag) const;
virtual LEErrorCode initMapper();
public:
GDIFontInstance(GDISurface *surface, TCHAR *faceName, le_int16 pointSize, LEErrorCode &status);
GDIFontInstance(GDISurface *surface, const char *faceName, le_int16 pointSize, LEErrorCode &status);
//GDIFontInstance(GDISurface *surface, le_int16 pointSize);
virtual ~GDIFontInstance();
HFONT getFont() const;
virtual const void *getFontTable(LETag tableTag) const;
virtual le_int32 getUnitsPerEM() const;
virtual le_int32 getAscent() const;
virtual le_int32 getDescent() const;
virtual le_int32 getLeading() const;
virtual LEGlyphID mapCharToGlyph(LEUnicode32 ch) const;
virtual void getGlyphAdvance(LEGlyphID glyph, LEPoint &advance) const;
virtual le_bool getGlyphPoint(LEGlyphID glyph, le_int32 pointNumber, LEPoint &point) const;
float getXPixelsPerEm() const;
float getYPixelsPerEm() const;
float getScaleFactorX() const;
float getScaleFactorY() const;
};
inline HFONT GDIFontInstance::getFont() const
{
return fFont;
}
inline le_int32 GDIFontInstance::getUnitsPerEM() const
{
return fUnitsPerEM;
}
inline le_int32 GDIFontInstance::getAscent() const
{
return fAscent;
}
inline le_int32 GDIFontInstance::getDescent() const
{
return fDescent;
}
inline le_int32 GDIFontInstance::getLeading() const
{
return fLeading;
}
inline LEGlyphID GDIFontInstance::mapCharToGlyph(LEUnicode32 ch) const
{
return fMapper->unicodeToGlyph(ch);
}
inline float GDIFontInstance::getXPixelsPerEm() const
{
return (float) fPointSize;
}
inline float GDIFontInstance::getYPixelsPerEm() const
{
return (float) fPointSize;
}
inline float GDIFontInstance::getScaleFactorX() const
{
return fDeviceScaleX;
}
inline float GDIFontInstance::getScaleFactorY() const
{
return fDeviceScaleY;
}
#endif
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