mirror of
https://github.com/ultimatepp/ultimatepp.git
synced 2026-05-25 06:12:34 -06:00
123 lines
2.9 KiB
C++
123 lines
2.9 KiB
C++
/*
|
|
* FTGL - OpenGL font library
|
|
*
|
|
* Copyright (c) 2001-2004 Henry Maddocks <ftgl@opengl.geek.nz>
|
|
*
|
|
* 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 "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;
|
|
}
|
|
}
|
|
|
|
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;
|
|
}
|
|
|