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#include "FTFace.h"
#include "FTFont.h"
#include "FTGlyphContainer.h"
#include "FTBBox.h"
FTFont::FTFont( const char* fontname)
: face( fontname),
glyphList(0)
{
err = face.Error();
if( err == 0)
{
glyphList = new FTGlyphContainer( &face);
}
}
FTFont::FTFont( const unsigned char *pBufferBytes, size_t bufferSizeInBytes)
: face( pBufferBytes, bufferSizeInBytes),
glyphList(0)
{
err = face.Error();
if( err == 0)
{
glyphList = new FTGlyphContainer( &face);
}
}
FTFont::~FTFont()
{
delete glyphList;
}
bool FTFont::Attach( const char* filename)
{
if( face.Attach( filename))
{
err = 0;
return true;
}
else
{
err = face.Error();
return false;
}
}
bool FTFont::Attach( const unsigned char *pBufferBytes, size_t bufferSizeInBytes)
{
if( face.Attach( pBufferBytes, bufferSizeInBytes))
{
err = 0;
return true;
}
else
{
err = face.Error();
return false;
}
}
bool FTFont::FaceSize( const unsigned int size, const unsigned int res )
{
charSize = face.Size( size, res);
if( face.Error())
{
return false;
}
if( glyphList != NULL)
{
delete glyphList;
}
glyphList = new FTGlyphContainer( &face);
return true;
}
unsigned int FTFont::FaceSize() const
{
return charSize.CharSize();
}
bool FTFont::CharMap( FT_Encoding encoding)
{
bool result = glyphList->CharMap( encoding);
err = glyphList->Error();
return result;
}
unsigned int FTFont::CharMapCount()
{
return face.CharMapCount();
}
FT_Encoding* FTFont::CharMapList()
{
return face.CharMapList();
}
float FTFont::Ascender() const
{
return charSize.Ascender();
}
float FTFont::Descender() const
{
return charSize.Descender();
}
void FTFont::BBox( const char* string,
float& llx, float& lly, float& llz, float& urx, float& ury, float& urz)
{
FTBBox totalBBox;
if((NULL != string) && ('\0' != *string))
{
const unsigned char* c = (unsigned char*)string;
CheckGlyph( *c);
totalBBox = glyphList->BBox( *c);
float advance = glyphList->Advance( *c, *(c + 1));
++c;
while( *c)
{
CheckGlyph( *c);
FTBBox tempBBox = glyphList->BBox( *c);
tempBBox.Move( FTPoint( advance, 0.0f, 0.0f));
totalBBox += tempBBox;
advance += glyphList->Advance( *c, *(c + 1));
++c;
}
}
llx = totalBBox.lowerX;
lly = totalBBox.lowerY;
llz = totalBBox.lowerZ;
urx = totalBBox.upperX;
ury = totalBBox.upperY;
urz = totalBBox.upperZ;
}
void FTFont::BBox( const wchar_t* string,
float& llx, float& lly, float& llz, float& urx, float& ury, float& urz)
{
FTBBox totalBBox;
if((NULL != string) && ('\0' != *string))
{
const wchar_t* c = string;
CheckGlyph( *c);
totalBBox = glyphList->BBox( *c);
float advance = glyphList->Advance( *c, *(c + 1));
++c;
while( *c)
{
CheckGlyph( *c);
FTBBox tempBBox = glyphList->BBox( *c);
tempBBox.Move( FTPoint( advance, 0.0f, 0.0f));
totalBBox += tempBBox;
advance += glyphList->Advance( *c, *(c + 1));
++c;
}
}
llx = totalBBox.lowerX;
lly = totalBBox.lowerY;
llz = totalBBox.lowerZ;
urx = totalBBox.upperX;
ury = totalBBox.upperY;
urz = totalBBox.upperZ;
}
float FTFont::Advance( const wchar_t* string)
{
const wchar_t* c = string;
float width = 0.0f;
while( *c)
{
CheckGlyph( *c);
width += glyphList->Advance( *c, *(c + 1));
++c;
}
return width;
}
float FTFont::Advance( const char* string)
{
const unsigned char* c = (unsigned char*)string;
float width = 0.0f;
while( *c)
{
CheckGlyph( *c);
width += glyphList->Advance( *c, *(c + 1));
++c;
}
return width;
}
void FTFont::Render( const char* string )
{
const unsigned char* c = (unsigned char*)string;
pen.x = 0; pen.y = 0;
while( *c)
{
DoRender( *c, *(c + 1));
++c;
}
}
void FTFont::Render( const wchar_t* string )
{
const wchar_t* c = string;
pen.x = 0; pen.y = 0;
while( *c)
{
DoRender( *c, *(c + 1));
++c;
}
}
void FTFont::DoRender( const unsigned int chr, const unsigned int nextChr)
{
CheckGlyph( chr);
FTPoint kernAdvance = glyphList->Render( chr, nextChr, pen);
pen.x += kernAdvance.x;
pen.y += kernAdvance.y;
}
void FTFont::CheckGlyph( const unsigned int characterCode)
{
if( NULL == glyphList->Glyph( characterCode))
{
unsigned int glyphIndex = glyphList->FontIndex( characterCode);
glyphList->Add( MakeGlyph( glyphIndex), characterCode);
}
}
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