Support TeX elements in FreeType renderer. * libinterp/corefcn/txt-eng.cc: New file. Contains mapping from symbol name to character code, in Unicode and MS symbol. * libinterp/corefcn/modules.mk (COREFCN_SRC): Add txt-eng.cc. * libinterp/corefcn/oct-tex-lexer.ll: Add "\n" to rules applicable to ".", as the latter does not include new line characters. * libinterp/corefcn/oct-tex-parser.yy: Remove debug statements. * libinterp/corefcn/txt-eng.ft.cc (gripe_missing_glyph, gripe_glyph_render): Change signature from char to FT_ULong. (ft_render::ft_render): Adapt to new/removed members. (ft_render::~ft_render): Remove use of fonts member. (ft_render::set_font): Likewise. Use font instead. (ft_render::push_new_line): Likewise. Change meaning of yoffset and initialize line_yoffset. (ft_render::update_line_bbox): New method. (ft_render::set_mode): Change meaning of yoffset and initialize line_yoffset. (ft_render::process_character): New method. (ft_render::visit(text_element_string)): Use it. (ft_render::visit(text_element_list), ft_render::visit(text_element_subscript), ft_render::visit(text_element_superscript), ft_render::visit(text_element_color), ft_render::visit(text_element_fontsize), ft_render::visit(text_element_fontname), ft_render::visit(text_element_fontstyle), ft_render::visit(text_element_symbol)): New methods. (ft_render::set_color): Use color member instead of red/green/blue. * libinterp/corefcn/txt-eng-ft.h (ft_render::visit(text_element_list), ft_render::visit(text_element_subscript), ft_render::visit(text_element_superscript), ft_render::visit(text_element_color), ft_render::visit(text_element_fontsize), ft_render::visit(text_element_fontname), ft_render::visit(text_element_fontstyle), ft_render::visit(text_element_symbol)): New methods. (ft_render::update_line_bbox, ft_render::process_character): New methods. (ft_render::current_face): Removed method.i (ft_render::font): New member, replaces obsolete ft_render::fonts. (ft_render::line_yoffset): New member. (ft_render::color): New member, replaces obsolete red, green and blue. (ft_render::ft_font::ft_font()): Implement default constructor. (ft_render::ft_font::operator=): Fix incorrect use of FT_Reference_Face return value. (ft_render::ft_font::is_valid): New method. * libinterp/corefcn/txt-eng.h (class text_element_symbol, class text_element_fontname, class text_element_fontsize, class text_element_fontname, class text_element_fontstyle, class text_element_color): Add forward definition. (text_element_symbol::invalid_code): New enum. (text_element_symbol::code): New member. (text_element_symbol::text_element_symbol): Initialize it. (text_element_symbol::get_symbol_code): New method. (text_element_fontstyle::get_fontstyle): New method. (text_element_fontname::get_fontname): Renamed from fontname. (text_element_fontsize::get_fontsize): Renamed from fontsize.

# Makefile for Octave's libgui directory
#
# Copyright (C) 2012 John W. Eaton
#
# This file is part of Octave.
#
# Octave is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation; either version 3 of the License, or (at
# your option) any later version.
#
# Octave is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
# for more details.
#
# You should have received a copy of the GNU General Public License
# along with Octave; see the file COPYING.  If not, see
# <http://www.gnu.org/licenses/>.

include $(top_srcdir)/build-aux/common.mk

AUTOMAKE_OPTIONS = subdir-objects

MOC_CPPFLAGS =

octlib_LTLIBRARIES = liboctgui.la

TRANSLATIONS = \
  languages/be_BY.ts \
  languages/de_DE.ts \
  languages/en_US.ts \
  languages/es_ES.ts \
  languages/fr_FR.ts \
  languages/nl_NL.ts \
  languages/pt_BR.ts \
  languages/ru_RU.ts \
  languages/uk_UA.ts

LOCALES = $(patsubst languages/%.ts, languages/%.qm, $(TRANSLATIONS))

EXTRA_DIST = default-qt-settings.in $(TRANSLATIONS)
CLEANFILES =

BUILT_SOURCES =

noinst_HEADERS =

noinst_LTLIBRARIES =

include src/module.mk
include qterminal-module.mk

## liboctgui merely collects a bunch of compiled convenience libraries.
## It has no source code itself.
liboctgui_la_SOURCES = 

include link-deps.mk

# Dummy C++ source to force C++ linking.
nodist_EXTRA_liboctgui_la_SOURCES = dummy.cc

liboctgui_la_LIBADD = \
  qterminal/libqterminal.la \
  src/libgui-src.la \
  $(top_builddir)/libinterp/liboctinterp.la \
  $(top_builddir)/liboctave/liboctave.la \
  $(LIBOCTGUI_LINK_DEPS)

# Increment these as needed and according to the rules in the libtool manual:
liboctgui_current = 0
liboctgui_revision = 0
liboctgui_age = 0

liboctgui_version_info = $(liboctgui_current):$(liboctgui_revision):$(liboctgui_age)

liboctgui_la_LDFLAGS = \
  -version-info $(liboctgui_version_info) \
  $(NO_UNDEFINED_LDFLAG) \
  -bindir $(bindir) \
  $(LIBOCTGUI_LINK_OPTS)

octetc_DATA = default-qt-settings

octlocale_DATA = $(LOCALES)

default-qt-settings: default-qt-settings.in
	$(do_subst_qt_settings)

define moc-command
( echo '#ifdef HAVE_CONFIG_H'; \
  echo '#include <config.h>'; \
  echo '#endif'; \
  $(MOC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(MOC_CPPFLAGS) $(liboctgui_la_CPPFLAGS) $< ) > $@-t
mv $@-t $@
endef

moc-%.cc: %.h
	$(moc-command)

ui-%.h: %.ui
	$(UIC) -o $@ $<

qrc-%.cc: %.qrc
	$(RCC) -o $@ $<

%.qm: %.ts
	$(MKDIR_P) languages
	$(LRELEASE) -qm $@ $<

DISTCLEANFILES = \
  $(LOCALES)