void FTFont::BBox( const wchar_t* string,
float& llx, float& lly, float& llz, float& urx, float& ury, float& urz)
{
const wchar_t* c = string;
llx = lly = llz = urx = ury = urz = 0;
FTBBox bbox;
while( *c)
{
if( !glyphList->Glyph( static_cast<unsigned int>(*c)))
{
unsigned int g = face.CharIndex( static_cast<unsigned int>(*c));
glyphList->Add( MakeGlyph( g), g);
}
bbox = glyphList->BBox( *c);
// Lower extent
lly = lly < bbox.y1 ? lly: bbox.y1;
// Upper extent
ury = ury > bbox.y2 ? ury: bbox.y2;
// Depth
urz = urz < bbox.z2 ? urz: bbox.z2;
// Width
urx += glyphList->Advance( *c, *(c + 1));
++c;
}
//Final adjustments
llx = glyphList->BBox( *string).x1;
urx -= glyphList->Advance( *(c - 1), 0);
urx += bbox.x2;
}
void FTFont::CheckGlyph( const unsigned int characterCode)
{
if( NULL == glyphList->Glyph( characterCode))
{
unsigned int glyphIndex = glyphList->FontIndex( characterCode);
glyphList->Add( MakeGlyph( glyphIndex), characterCode);
}
}
float FTFont::doAdvance( const unsigned int chr, const unsigned int nextChr)
{
if( !glyphList->Glyph( chr))
{
unsigned int g = face.CharIndex( chr);
glyphList->Add( MakeGlyph( g), g);
}
return glyphList->Advance( chr, nextChr);
}
bool FTFont::CheckGlyph (const unsigned int characterCode) {
if (NULL == glyphList->Glyph (characterCode)) {
unsigned int glyphIndex = glyphList->FontIndex (characterCode);
FTGlyph* tempGlyph = MakeGlyph (glyphIndex);
if (NULL == tempGlyph) {
if (0 == err) err = 0x13;
return false;
}
glyphList->Add (tempGlyph, characterCode);
}
return true;
}
void FTFont::doRender( const unsigned int chr,
const unsigned int nextChr,
const FTGLRenderContext *context)
{
if( !glyphList->Glyph( chr))
{
unsigned int g = face.CharIndex( chr);
glyphList->Add( MakeGlyph( g), g);
}
FT_Vector kernAdvance = glyphList->render( chr, nextChr, pen, context);
pen.x += kernAdvance.x;
pen.y += kernAdvance.y;
}
bool FTFont::MakeGlyphList()
{
if( preCache)
{
for( unsigned int c = 0; c < numGlyphs; ++c)
{
glyphList->Add( MakeGlyph( c), c);
}
}
else
{
for( unsigned int c = 0; c < numGlyphs; ++c)
{
glyphList->Add( NULL, c);
}
}
return !err; // FIXME what err?
}
