2018-01-01 00:21:42 -08:00
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Copyright (C) 2002-2018 Free Software Foundation, Inc.
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2008-02-21 04:00:22 +00:00
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See the end of the file for license conditions.
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New font handling mechanism with font backend method
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----------------------------------------------------
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The new files are:
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font.h -- header providing font-backend related structures
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(most important ones are "struct font" and "struct
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font_driver"), macros, and etc.
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font.c -- main font handling code.
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xfont.c -- font-driver on X for X core fonts.
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ftfont.c -- generic font-driver for FreeType fonts providing
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device-independent methods of struct font_driver.
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xftfont.c -- font-driver on X using Xft for FreeType fonts
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utilizing methods provided by ftfont.c.
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ftxfont.c -- font-driver on X directly using FreeType fonts
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utilizing methods provided by ftfont.c.
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w32font.c -- font driver on w32 using Windows native fonts,
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corresponding to xfont.c
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2008-04-04 11:10:26 +00:00
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w32uniscribe.c -- font driver on w32, using the uniscribe API
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to provide complex script support for opentype fonts on
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Windows 2000 and later, or earlier versions of Windows
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with uniscribe installed as an add-on.
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2008-02-21 04:00:22 +00:00
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2008-04-04 11:10:26 +00:00
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So we already have codes for X and w32. For Mac it seems that we need
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these files:
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2008-02-21 04:00:22 +00:00
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atmfont.c -- font-driver on mac using ATM fonts, corresponding
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to xfont.c
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As BDF fonts are currently used on w32, we may also implement these:
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bdffont.c -- generic font-driver for BDF fonts, corresponding to
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ftfont.c
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bdfw32font.c -- font-driver on w32 using BDF fonts,
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corresponding to ftxfont.c
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But, as FreeType already supports BDF fonts, if FreeType and
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Fontconfig are also available on w32, what we need may be:
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ftw32font.c -- font-driver on w32 directly using FreeType fonts
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utilizing methods provided by ftfont.c.
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It may be interesting if Emacs supports a frame buffer directly and
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has these font driver.
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ftfbfont.c -- font-driver on FB for FreeType fonts.
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bdffbfont.c -- font-driver on FB for BDF fonts.
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Note: The fontset related codes are not yet matured to work well with
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the font backend method. So, for instance, even if you start Emacs
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as something like this:
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% emacs -fn tahoma
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Non-ASCII Latin characters will not be displayed by the font "tahoma".
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In such a case, please try this:
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(set-fontset-font "fontset-default" 'latin '("tahoma" . "unicode-bmp"))
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This file is part of GNU Emacs.
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2008-05-09 23:48:10 +00:00
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GNU Emacs is free software: you can redistribute it and/or modify
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2008-02-21 04:00:22 +00:00
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it under the terms of the GNU General Public License as published by
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2008-05-09 23:48:10 +00:00
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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2008-02-21 04:00:22 +00:00
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GNU Emacs is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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2017-09-13 15:52:52 -07:00
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along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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