Mercurial > octave
view libinterp/corefcn/text-renderer.h @ 31051:5f015f2829b7
maint: Merge stable to default
author | Arun Giridhar <arungiridhar@gmail.com> |
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date | Wed, 01 Jun 2022 17:20:22 -0400 |
parents | 796f54d4ddbf |
children | e88a07dec498 |
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//////////////////////////////////////////////////////////////////////// // // Copyright (C) 2009-2022 The Octave Project Developers // // See the file COPYRIGHT.md in the top-level directory of this // distribution or <https://octave.org/copyright/>. // // 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 // <https://www.gnu.org/licenses/>. // //////////////////////////////////////////////////////////////////////// #if ! defined (octave_text_renderer_h) #define octave_text_renderer_h 1 #include "octave-config.h" #include <list> #include <string> #include <vector> #include "caseless-str.h" #include "dMatrix.h" #include "uint8NDArray.h" namespace octave { class base_text_renderer; class text_element; class OCTINTERP_API text_renderer { public: text_renderer (void); // No copying! text_renderer (const text_renderer&) = delete; text_renderer& operator = (const text_renderer&) = delete; ~text_renderer (void); bool ok (void) const; 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_anti_aliasing (bool val); void set_font (const std::string& name, const std::string& weight, const std::string& angle, double size); octave_map get_system_fonts (void); void set_color (const Matrix& c); void text_to_pixels (const std::string& txt, uint8NDArray& pxls, Matrix& bbox, int halign, int valign, double rotation = 0.0, const caseless_str& interpreter = "tex", bool handle_rotation = true); class font { public: font (void) : m_name (), m_weight (), m_angle (), m_size (0) { } font (const std::string& nm, const std::string& wt, const std::string& ang, double sz) : m_name (nm), m_weight (wt), m_angle (ang), m_size (sz) { } font (const font& ft) : m_name (ft.m_name), m_weight (ft.m_weight), m_angle (ft.m_angle), m_size (ft.m_size) { } ~font (void) = default; font& operator = (const font& ft) { if (&ft != this) { m_name = ft.m_name; m_weight = ft.m_weight; m_angle = ft.m_angle; m_size = ft.m_size; } return *this; } std::string get_name (void) const { return m_name; } std::string get_weight (void) const { return m_weight; } std::string get_angle (void) const { return m_angle; } double get_size (void) const { return m_size; } protected: std::string m_name; std::string m_weight; std::string m_angle; double m_size; }; // Container for substrings after parsing. class string { public: string (const std::string& s, font& f, const double x, const double y) : m_str (s), m_family (f.get_name ()), m_fnt (f), m_x (x), m_y (y), m_z (0.0), m_xdata (), m_code (0), m_color (Matrix (1, 3, 0.0)), m_svg_element () { } string (const string& s) : m_str (s.m_str), m_family (s.m_family), m_fnt (s.m_fnt), m_x (s.m_x), m_y (s.m_y), m_z (s.m_z), m_xdata (s.m_xdata), m_code (s.m_code), m_color (s.m_color), m_svg_element (s.m_svg_element) { } ~string (void) = default; string& operator = (const string& s) { if (&s != this) { m_str = s.m_str; m_family = s.m_family; m_fnt = s.m_fnt; m_x = s.m_x; m_y = s.m_y; m_z = s.m_z; m_xdata = s.m_xdata; m_code = s.m_code; m_color = s.m_color; } return *this; } void set_string (const std::string& s) { m_str = s; } std::string get_string (void) const { return m_str; } std::string get_name (void) const { return m_fnt.get_name (); } std::string get_family (void) const { return m_family; } void set_family (const std::string& nm) { m_family = nm; } std::string get_weight (void) const { return m_fnt.get_weight (); } std::string get_angle (void) const { return m_fnt.get_angle (); } double get_size (void) const { return m_fnt.get_size (); } void set_x (const double x) { m_x = x; } double get_x (void) const { return m_x; } void set_xdata (const std::vector<double>& x) { m_xdata = x; } std::vector<double> get_xdata (void) const { return m_xdata; } void set_y (const double y) { m_y = y; } double get_y (void) const { return m_y; } void set_z (const double z) { m_z = z; } double get_z (void) const { return m_z; } void set_code (const uint32_t code) { m_code = code; } uint32_t get_code (void) const { return m_code; } void set_svg_element (const std::string& svg) { m_svg_element = svg; } std::string get_svg_element (void) const { return m_svg_element; } void set_color (const uint8NDArray& c) { m_color(0) = static_cast<double> (c(0)) / 255; m_color(1) = static_cast<double> (c(1)) / 255; m_color(2) = static_cast<double> (c(2)) / 255; } Matrix get_color (void) const { return m_color; } private: std::string m_str; std::string m_family; font m_fnt; double m_x, m_y, m_z; std::vector<double> m_xdata; uint32_t m_code; Matrix m_color; std::string m_svg_element; }; void text_to_strlist (const std::string& txt, std::list<string>& lst, Matrix& box, int halign, int valign, double rotation = 0.0, const caseless_str& interpreter = "tex"); private: base_text_renderer *m_rep; base_text_renderer *m_latex_rep; }; } #endif