173 lines
3.8 KiB
C++
173 lines
3.8 KiB
C++
|
|
/*
|
|
*******************************************************************************
|
|
*
|
|
* © 2016 and later: Unicode, Inc. and others.
|
|
* License & terms of use: http://www.unicode.org/copyright.html#License
|
|
*
|
|
*******************************************************************************
|
|
*******************************************************************************
|
|
*
|
|
* Copyright (C) 1999-2006, International Business Machines
|
|
* Corporation and others. All Rights Reserved.
|
|
*
|
|
*******************************************************************************
|
|
* file name: GnomeFontInstance.h
|
|
*
|
|
* created on: 08/30/2001
|
|
* created by: Eric R. Mader
|
|
*/
|
|
|
|
#ifndef __GNOMEFONTINSTANCE_H
|
|
#define __GNOMEFONTINSTANCE_H
|
|
|
|
#include <gnome.h>
|
|
#include <ft2build.h>
|
|
#include FT_FREETYPE_H
|
|
#include FT_GLYPH_H
|
|
#include <cairo.h>
|
|
|
|
#include "layout/LETypes.h"
|
|
#include "layout/LEFontInstance.h"
|
|
|
|
#include "RenderingSurface.h"
|
|
#include "FontTableCache.h"
|
|
#include "cmaps.h"
|
|
|
|
class GnomeSurface : public RenderingSurface
|
|
{
|
|
public:
|
|
GnomeSurface(GtkWidget *theWidget);
|
|
virtual ~GnomeSurface();
|
|
|
|
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);
|
|
|
|
GtkWidget *getWidget() const;
|
|
void setWidget(GtkWidget *theWidget);
|
|
|
|
private:
|
|
GtkWidget *fWidget;
|
|
cairo_t *fCairo;
|
|
};
|
|
|
|
class GnomeFontInstance : public LEFontInstance, protected FontTableCache
|
|
{
|
|
protected:
|
|
FT_Face fFace;
|
|
// FT_Glyph fGlyph;
|
|
|
|
cairo_font_face_t *fCairoFace;
|
|
|
|
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:
|
|
GnomeFontInstance(FT_Library engine, const char *fontPathName, le_int16 pointSize, LEErrorCode &status);
|
|
|
|
virtual ~GnomeFontInstance();
|
|
|
|
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;
|
|
|
|
void rasterizeGlyphs(cairo_t *cairo, const LEGlyphID *glyphs, le_int32 glyphCount, const float *positions,
|
|
le_int32 x, le_int32 y) const;
|
|
};
|
|
|
|
inline GtkWidget *GnomeSurface::getWidget() const
|
|
{
|
|
return fWidget;
|
|
}
|
|
|
|
inline void GnomeSurface::setWidget(GtkWidget *theWidget)
|
|
{
|
|
fWidget = theWidget;
|
|
}
|
|
|
|
/*
|
|
inline FT_Instance GnomeFontInstance::getFont() const
|
|
{
|
|
return fInstance;
|
|
}
|
|
*/
|
|
|
|
inline le_int32 GnomeFontInstance::getUnitsPerEM() const
|
|
{
|
|
return fUnitsPerEM;
|
|
}
|
|
|
|
inline le_int32 GnomeFontInstance::getAscent() const
|
|
{
|
|
return fAscent;
|
|
}
|
|
|
|
inline le_int32 GnomeFontInstance::getDescent() const
|
|
{
|
|
return fDescent;
|
|
}
|
|
|
|
inline le_int32 GnomeFontInstance::getLeading() const
|
|
{
|
|
return fLeading;
|
|
}
|
|
|
|
inline LEGlyphID GnomeFontInstance::mapCharToGlyph(LEUnicode32 ch) const
|
|
{
|
|
return fMapper->unicodeToGlyph(ch);
|
|
}
|
|
|
|
inline float GnomeFontInstance::getXPixelsPerEm() const
|
|
{
|
|
return (float) fPointSize;
|
|
}
|
|
|
|
inline float GnomeFontInstance::getYPixelsPerEm() const
|
|
{
|
|
return (float) fPointSize;
|
|
}
|
|
|
|
inline float GnomeFontInstance::getScaleFactorX() const
|
|
{
|
|
return fDeviceScaleX;
|
|
}
|
|
|
|
inline float GnomeFontInstance::getScaleFactorY() const
|
|
{
|
|
return fDeviceScaleY;
|
|
}
|
|
|
|
#endif
|