105 lines
1.9 KiB
C++
105 lines
1.9 KiB
C++
|
#include "FTSize.h"
|
||
|
|
|
||
|
|
|
||
|
|
FTSize::FTSize()
|
||
|
|
: ftFace(0),
|
||
|
|
ftSize(0),
|
||
|
|
size(0),
|
||
|
|
xResolution(0),
|
||
|
|
yResolution(0),
|
||
|
|
err(0)
|
||
|
|
{}
|
||
|
|
|
||
|
|
|
||
|
|
FTSize::~FTSize()
|
||
|
|
{}
|
||
|
|
|
||
|
|
|
||
|
|
bool FTSize::CharSize( FT_Face* face, unsigned int pointSize, unsigned int xRes, unsigned int yRes )
|
||
|
|
{
|
||
|
|
if( size != pointSize || xResolution != xRes || yResolution != yRes)
|
||
|
|
{
|
||
|
|
err = FT_Set_Char_Size( *face, 0L, pointSize * 64, xResolution, yResolution);
|
||
|
|
|
||
|
|
if( !err)
|
||
|
|
{
|
||
|
|
ftFace = face;
|
||
|
|
size = pointSize;
|
||
|
|
xResolution = xRes;
|
||
|
|
yResolution = yRes;
|
||
|
|
ftSize = (*ftFace)->size;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
ftFace = 0;
|
||
|
|
size = 0;
|
||
|
|
xResolution = 0;
|
||
|
|
yResolution = 0;
|
||
|
|
ftSize = 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return !err;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
unsigned int FTSize::CharSize() const
|
||
|
|
{
|
||
|
|
return size;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
float FTSize::Ascender() const
|
||
|
|
{
|
||
|
|
return ftSize == 0 ? 0.0f : static_cast<float>( ftSize->metrics.ascender) / 64.0f;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
float FTSize::Descender() const
|
||
|
|
{
|
||
|
|
return ftSize == 0 ? 0.0f : static_cast<float>( ftSize->metrics.descender) / 64.0f;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
float FTSize::Height() const
|
||
|
|
{
|
||
|
|
if( 0 == ftSize)
|
||
|
|
{
|
||
|
|
return 0.0f;
|
||
|
|
}
|
||
|
|
|
||
|
|
if( FT_IS_SCALABLE((*ftFace)))
|
||
|
|
{
|
||
|
|
return ( (*ftFace)->bbox.yMax - (*ftFace)->bbox.yMin) * ( (float)ftSize->metrics.y_ppem / (float)(*ftFace)->units_per_EM);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
return static_cast<float>( ftSize->metrics.height) / 64.0f;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
float FTSize::Width() const
|
||
|
|
{
|
||
|
|
if( 0 == ftSize)
|
||
|
|
{
|
||
|
|
return 0.0f;
|
||
|
|
}
|
||
|
|
|
||
|
|
if( FT_IS_SCALABLE((*ftFace)))
|
||
|
|
{
|
||
|
|
return ( (*ftFace)->bbox.xMax - (*ftFace)->bbox.xMin) * ( static_cast<float>(ftSize->metrics.x_ppem) / static_cast<float>((*ftFace)->units_per_EM));
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
return static_cast<float>( ftSize->metrics.max_advance) / 64.0f;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
float FTSize::Underline() const
|
||
|
|
{
|
||
|
|
return 0.0f;
|
||
|
|
}
|
||
|
|
|