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