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/*
* FTGL - OpenGL font library
*
* Copyright (c) 2001-2004 Henry Maddocks <ftgl@opengl.geek.nz>
* Copyright (c) 2008 Éric Beets <ericbeets@free.fr>
* Copyright (c) 2008 Sam Hocevar <sam@zoy.org>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "config.h"
#include "FTInternals.h"
static const FTPoint static_ftpoint;
static const FTBBox static_ftbbox;
FTGL_BEGIN_C_DECLS
#define C_TOR(cname, cargs, cxxname, cxxarg, cxxtype) \
FTGLfont* cname cargs \
{ \
cxxname *f = new cxxname cxxarg; \
if(f->Error()) \
{ \
delete f; \
return NULL; \
} \
FTGLfont *ftgl = (FTGLfont *)malloc(sizeof(FTGLfont)); \
ftgl->ptr = f; \
ftgl->type = cxxtype; \
return ftgl; \
}
// FTBitmapFont::FTBitmapFont();
C_TOR(ftglCreateBitmapFont, (const char *fontname),
FTBitmapFont, (fontname), FONT_BITMAP);
// FTBufferFont::FTBufferFont();
C_TOR(ftglCreateBufferFont, (const char *fontname),
FTBufferFont, (fontname), FONT_BUFFER);
// FTExtrudeFont::FTExtrudeFont();
C_TOR(ftglCreateExtrudeFont, (const char *fontname),
FTExtrudeFont, (fontname), FONT_EXTRUDE);
// FTOutlineFont::FTOutlineFont();
C_TOR(ftglCreateOutlineFont, (const char *fontname),
FTOutlineFont, (fontname), FONT_OUTLINE);
// FTPixmapFont::FTPixmapFont();
C_TOR(ftglCreatePixmapFont, (const char *fontname),
FTPixmapFont, (fontname), FONT_PIXMAP);
// FTPolygonFont::FTPolygonFont();
C_TOR(ftglCreatePolygonFont, (const char *fontname),
FTPolygonFont, (fontname), FONT_POLYGON);
// FTTextureFont::FTTextureFont();
C_TOR(ftglCreateTextureFont, (const char *fontname),
FTTextureFont, (fontname), FONT_TEXTURE);
// FTCustomFont::FTCustomFont();
class FTCustomFont : public FTFont
{
public:
FTCustomFont(char const *fontFilePath, void *p,
FTGLglyph * (*makeglyph) (FT_GlyphSlot, void *))
: FTFont(fontFilePath),
data(p),
makeglyphCallback(makeglyph)
{}
~FTCustomFont()
{}
FTGlyph* MakeGlyph(FT_GlyphSlot slot)
{
FTGLglyph *g = makeglyphCallback(slot, data);
FTGlyph *glyph = g->ptr;
// XXX: we no longer need g, and no one will free it for us. Not
// very elegant, and we need to make sure no one else will try to
// use it.
free(g);
return glyph;
}
private:
void *data;
FTGLglyph *(*makeglyphCallback) (FT_GlyphSlot, void *);
};
C_TOR(ftglCreateCustomFont, (char const *fontFilePath, void *data,
FTGLglyph * (*makeglyphCallback) (FT_GlyphSlot, void *)),
FTCustomFont, (fontFilePath, data, makeglyphCallback), FONT_CUSTOM);
#define C_FUN(cret, cname, cargs, cxxerr, cxxname, cxxarg) \
cret cname cargs \
{ \
if(!f || !f->ptr) \
{ \
fprintf(stderr, "FTGL warning: NULL pointer in %s\n", #cname); \
cxxerr; \
} \
return f->ptr->cxxname cxxarg; \
}
// FTFont::~FTFont();
void ftglDestroyFont(FTGLfont *f)
{
if(!f || !f->ptr)
{
fprintf(stderr, "FTGL warning: NULL pointer in %s\n", __FUNCTION__);
return;
}
delete f->ptr;
free(f);
}
// bool FTFont::Attach(const char* fontFilePath);
C_FUN(int, ftglAttachFile, (FTGLfont *f, const char* path),
return 0, Attach, (path));
// bool FTFont::Attach(const unsigned char *pBufferBytes,
// size_t bufferSizeInBytes);
C_FUN(int, ftglAttachData, (FTGLfont *f, const unsigned char *p, size_t s),
return 0, Attach, (p, s));
// void FTFont::GlyphLoadFlags(FT_Int flags);
C_FUN(void, ftglSetFontGlyphLoadFlags, (FTGLfont *f, FT_Int flags),
return, GlyphLoadFlags, (flags));
// bool FTFont::CharMap(FT_Encoding encoding);
C_FUN(int, ftglSetFontCharMap, (FTGLfont *f, FT_Encoding enc),
return 0, CharMap, (enc));
// unsigned int FTFont::CharMapCount();
C_FUN(unsigned int, ftglGetFontCharMapCount, (FTGLfont *f),
return 0, CharMapCount, ());
// FT_Encoding* FTFont::CharMapList();
C_FUN(FT_Encoding *, ftglGetFontCharMapList, (FTGLfont* f),
return NULL, CharMapList, ());
// virtual bool FTFont::FaceSize(const unsigned int size,
// const unsigned int res = 72);
C_FUN(int, ftglSetFontFaceSize, (FTGLfont *f, unsigned int s, unsigned int r),
return 0, FaceSize, (s, r > 0 ? r : 72));
// unsigned int FTFont::FaceSize() const;
// XXX: need to call FaceSize() as FTFont::FaceSize() because of FTGLTexture
C_FUN(unsigned int, ftglGetFontFaceSize, (FTGLfont *f),
return 0, FTFont::FaceSize, ());
// virtual void FTFont::Depth(float depth);
C_FUN(void, ftglSetFontDepth, (FTGLfont *f, float d), return, Depth, (d));
// virtual void FTFont::Outset(float front, float back);
C_FUN(void, ftglSetFontOutset, (FTGLfont *f, float front, float back),
return, FTFont::Outset, (front, back));
// void FTFont::UseDisplayList(bool useList);
C_FUN(void, ftglSetFontDisplayList, (FTGLfont *f, int l),
return, UseDisplayList, (l != 0));
// float FTFont::Ascender() const;
C_FUN(float, ftglGetFontAscender, (FTGLfont *f), return 0.f, Ascender, ());
// float FTFont::Descender() const;
C_FUN(float, ftglGetFontDescender, (FTGLfont *f), return 0.f, Descender, ());
// float FTFont::LineHeight() const;
C_FUN(float, ftglGetFontLineHeight, (FTGLfont *f), return 0.f, LineHeight, ());
// void FTFont::BBox(const char* string, float& llx, float& lly, float& llz,
// float& urx, float& ury, float& urz);
extern "C++" {
C_FUN(static FTBBox, _ftglGetFontBBox, (FTGLfont *f, char const *s, int len),
return static_ftbbox, BBox, (s, len));
}
void ftglGetFontBBox(FTGLfont *f, const char* s, int len, float c[6])
{
FTBBox ret = _ftglGetFontBBox(f, s, len);
FTPoint lower = ret.Lower(), upper = ret.Upper();
c[0] = lower.Xf(); c[1] = lower.Yf(); c[2] = lower.Zf();
c[3] = upper.Xf(); c[4] = upper.Yf(); c[5] = upper.Zf();
}
// float FTFont::Advance(const char* string);
C_FUN(float, ftglGetFontAdvance, (FTGLfont *f, char const *s),
return 0.0, Advance, (s));
// virtual void Render(const char* string, int renderMode);
extern "C++" {
C_FUN(static FTPoint, _ftglRenderFont, (FTGLfont *f, char const *s, int len,
FTPoint pos, FTPoint spacing, int mode),
return static_ftpoint, Render, (s, len, pos, spacing, mode));
}
void ftglRenderFont(FTGLfont *f, const char *s, int mode)
{
_ftglRenderFont(f, s, -1, FTPoint(), FTPoint(), mode);
}
// FT_Error FTFont::Error() const;
C_FUN(FT_Error, ftglGetFontError, (FTGLfont *f), return -1, Error, ());
FTGL_END_C_DECLS
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