4 * This file is part of LyX, the document processor.
5 * Licence details can be found in the file COPYING.
7 * \author Lars Gullik Bjønnes
8 * \author Jean-Marc Lasgouttes
9 * \author Angus Leeming
12 * Full author contact details are available in file CREDITS.
20 #include "support/strfwd.h"
36 explicit Font(FontInfo = sane_font, Language const * l = nullptr);
39 FontInfo & fontInfo() { return bits_; }
41 FontInfo const & fontInfo() const { return bits_; }
43 Language const * language() const { return lang_; }
45 bool isRightToLeft() const;
47 bool isVisibleRightToLeft() const;
49 void setLanguage(Language const * l);
51 void setProperties(FontInfo const & f);
53 /// Returns size of font in LaTeX text notation
54 std::string const latexSize() const;
56 /** Updates font settings according to request.
57 If an attribute is IGNORE, the attribute is left as it is.
58 When toggleall = true, all properties that matches the font in use
59 will have the effect that the properties is reset to the
60 default. If we have a text that is TYPEWRITER_FAMILY, and is
61 update()'ed with TYPEWRITER_FAMILY, the operation will be as if
62 a INHERIT_FAMILY was asked for. This is necessary for the
63 toggle-user-defined-style button on the toolbar.
65 void update(Font const & newfont,
66 Language const * default_lang,
67 bool toggleall = false);
69 /// Writes the changes from this font to orgfont in .lyx format in file
70 void lyxWriteChanges(Font const & orgfont, std::ostream &) const;
72 /** Writes the head of the LaTeX needed to change to this font.
73 Writes to string, the head of the LaTeX needed to change
74 to this font. Returns number of chars written. Base is the
75 font state active now.
77 int latexWriteStartChanges(otexstream &, BufferParams const & bparams,
78 OutputParams const & runparams,
81 bool const & non_inherit_inset = false,
82 bool const & needs_cprotection = false) const;
84 /** Writes the tail of the LaTeX needed to change to this font.
85 Returns number of chars written. Base is the font state we want
88 int latexWriteEndChanges(otexstream &, BufferParams const & bparams,
89 OutputParams const & runparams,
93 bool const & closeLanguage = true,
94 bool const & multipar_inset = false) const;
97 /// Build GUI description of font state
98 docstring const stateText(BufferParams * params = nullptr, bool const terse = false) const;
101 void validate(LaTeXFeatures & features) const;
105 bool operator==(Font const & font1, Font const & font2);
108 std::ostream & operator<<(std::ostream & os, Font const & font);
110 /// Set \param data using \param font and \param toggle.
111 std::string toString(bool toggle) const;
113 /// Set \param font and \param toggle using \param data. Return success.
114 bool fromString(std::string const & data, bool & toggle);
120 Language const * lang_;
121 /// Did latexWriteStartChanges open an encoding environment?
122 mutable bool open_encoding_;
128 bool operator==(Font const & font1, Font const & font2)
130 return font1.bits_ == font2.bits_ && font1.lang_ == font2.lang_;
135 bool operator!=(Font const & font1, Font const & font2)
137 return !(font1 == font2);