Mercurial > octave
view libinterp/corefcn/txt-eng-ft.h @ 17269:5b088598df1d
Add simple TeX parser based on flex/bison.
* libinterp/corefcn/oct-tex-lexer.ll,
libinterp/corefcn/oct-tex-pareser.yy: New files.
* libinterp/Makefile.am (BUILT_SOURCES): Add oct-tex-lexer.cc and
oct-tex-parser.cc.
* libinterp/corefcn/modules.mk (corefcn/oct-tex-lexer.cc,
corefcn/oct-tex-parser.h): New rules.
* libinterp/corefcn/txt-eng-ft.h (ft_render::text_to_pixels,
ft_render::get_extent): Add interpreter argument.
* libinterp/corefcn/txt-eng-ft.cc (ft_render::text_to_pixels,
ft_render::get_extent): Likewise. Use text_parser::parse().
* libinterp/corefcn/gl-render.cc (opengl_renderer::text_to_pixels): Use
new interpreter argument.
* libinterp/corefcn/graphics.cc
(axes::properties::get_ticklabel_extents): Likewise.
(uicontrol::properties::update_text_extent): Use text_parser::parse.
* libinterp/corefcn/txt-eng.h (memory, string, caseless-str.h,
dMatrix.h): New includes.
(class text_element_subscript): Renamed from text_subscript_element.
(class text_element_supserscript): Renamed from
text_superscript_element.
(class text_element_symbol, class text_element_fontstyle, class
text_element_fontname, class text_element_fontsize, class
text_element_color): New classes.
(text_element_list::text_element_list(text_element*)): New constructor.
(text_element_subscript::text_element_subscript(text_element*),
text_element_subscript::text_element::subscript(char)): New
constructors.
(text_element_subscript::elem): New member.
(text_element_subscript::get_element): New method. Returns it.
(text_element_subscript::~text_element_subscript): New destructor.
Delete it.
(text_element_subscript::text_element_subscript()): Make default
constructor private.
(text_element_superscript::text_element_superscript(text_element*),
text_element_superscript::text_element::superscript(char)): New
constructors.
(text_element_superscript::elem): New member.
(text_element_superscript::get_element): New method. Returns it.
(text_element_superscript::~text_element_superscript): New destructor.
Delete it.
(text_element_superscript::text_element_superscript()): Make default
constructor private.
(text_processor::visit(text_element_symbol),
text_processor::visit(text_element_fontstyle),
text_processor::visit(text_element_fontname),
text_processor::visit(text_element_fontsize),
text_processor::visit(text_element_color)): New methods.
(text_parser::parse): New static method.
(class text_parser_tex): New class.
author | Michael Goffioul <michael.goffioul@gmail.com> |
---|---|
date | Sun, 18 Aug 2013 16:36:38 -0400 |
parents | 68fc671a9339 |
children | cb7233cfbf43 |
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/* Copyright (C) 2009-2012 Michael Goffioul 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/>. */ #if ! defined (txt_eng_ft_h) #define txt_eng_ft_h 1 #if HAVE_FREETYPE #include <vector> #include <ft2build.h> #include FT_FREETYPE_H #include <dMatrix.h> #include <uint8NDArray.h> #include "txt-eng.h" class OCTINTERP_API ft_render : public text_processor { public: enum { MODE_BBOX = 0, MODE_RENDER = 1 }; enum { ROTATION_0 = 0, ROTATION_90 = 1, ROTATION_180 = 2, ROTATION_270 = 3 }; public: ft_render (void); ~ft_render (void); void visit (text_element_string& e); void reset (void); uint8NDArray get_pixels (void) const { return pixels; } Matrix get_boundingbox (void) const { return bbox; } uint8NDArray render (text_element* elt, Matrix& box, int rotation = ROTATION_0); Matrix get_extent (text_element *elt, double rotation = 0.0); Matrix get_extent (const std::string& txt, double rotation = 0.0, const caseless_str& interpreter = "tex"); void set_font (const std::string& name, const std::string& weight, const std::string& angle, double size); void set_color (Matrix c); void set_mode (int m); void text_to_pixels (const std::string& txt, uint8NDArray& pixels_, Matrix& bbox, int halign, int valign, double rotation, const caseless_str& interpreter = "tex"); private: int rotation_to_mode (double rotation) const; // No copying! ft_render (const ft_render&); ft_render& operator = (const ft_render&); private: FT_Face face; Matrix bbox; uint8NDArray pixels; int xoffset; int yoffset; int multiline_halign; std::vector<int> multiline_align_xoffsets; int mode; uint8_t red, green, blue; }; #endif // HAVE_FREETYPE #endif