From 37a92b86d13e89d0dcec92be6d23ceced29dbc36 Mon Sep 17 00:00:00 2001 From: scuri Date: Mon, 21 Jun 2010 22:55:10 +0000 Subject: *** empty log message *** --- src/ftgl/FTSize.cpp | 123 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 123 insertions(+) create mode 100644 src/ftgl/FTSize.cpp (limited to 'src/ftgl/FTSize.cpp') diff --git a/src/ftgl/FTSize.cpp b/src/ftgl/FTSize.cpp new file mode 100644 index 0000000..49f1596 --- /dev/null +++ b/src/ftgl/FTSize.cpp @@ -0,0 +1,123 @@ +/* + * FTGL - OpenGL font library + * + * Copyright (c) 2001-2004 Henry Maddocks + * + * 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(ftSize->metrics.ascender) / 64.0f; +} + + +float FTSize::Descender() const +{ + return ftSize == 0 ? 0.0f : static_cast(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(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(ftSize->metrics.x_ppem) / static_cast((*ftFace)->units_per_EM)); + } + else + { + return static_cast(ftSize->metrics.max_advance) / 64.0f; + } +} + + +float FTSize::Underline() const +{ + return 0.0f; +} + -- cgit v1.2.3