Mercurial > octave
annotate libinterp/corefcn/text-renderer.h @ 26858:0adb232f93b9
Implement axes and text "fontsmoothing" property (bug #55833).
* NEWS: Announce new property.
* base-text-renderer.h (base_text_renderer::set_anti_aliasing): New pure virtual
method
* ft-text-renderer.[h,cc] (text_renderer::m_antialias): New bool data member.
(ft_text_renderer::set_anti_aliasing): Implement
base_text_renderer::set_anti_aliasing.
(is_opaque): New function to determine if a pixel is opaque.
(ft_text_renderer::process_charater): Render glyph monochrome or antialiased
depending on m_antialias.
* text-renderer.[h,cc] (text_renderer::set_anti_aliasing): New method.
* graphics.in.h (axes::properties::fontsmoothing): Add "u" and corresponding
updater.
(text::properties::fontsmoothing,text::properties::update_fontsmoothing): New
property and corresponding updater.
* grpahics.cc (text::properties::update_font): Update the text_renderer
anti-aliasing.
* grpahics.cc (opengl_renderer::set_font): Update the text-renderer
anti-aliasing.
* genpropdoc: Document "fontsmoothnig" property.
author | Pantxo Diribarne <pantxo.diribarne@gmail.com> |
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date | Tue, 05 Mar 2019 13:51:16 +0100 |
parents | 6dfb842362dd |
children | ab5bfee22d18 |
rev | line source |
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21209 | 1 /* |
2 | |
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3 Copyright (C) 2016-2019 John W. Eaton |
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4 Copyright (C) 2009-2019 Michael Goffioul |
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6 This file is part of Octave. | |
7 | |
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8 Octave is free software: you can redistribute it and/or modify it |
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9 under the terms of the GNU General Public License as published by |
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10 the Free Software Foundation, either version 3 of the License, or |
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11 (at your option) any later version. |
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13 Octave is distributed in the hope that it will be useful, but |
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14 WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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16 GNU General Public License for more details. |
21209 | 17 |
18 You should have received a copy of the GNU General Public License | |
19 along with Octave; see the file COPYING. If not, see | |
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20 <https://www.gnu.org/licenses/>. |
21209 | 21 |
22 */ | |
23 | |
24 #if ! defined (octave_text_renderer_h) | |
25 #define octave_text_renderer_h 1 | |
26 | |
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27 #include "octave-config.h" |
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28 |
21209 | 29 #include <list> |
30 #include <string> | |
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31 #include <vector> |
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33 #include "caseless-str.h" | |
34 #include "dMatrix.h" | |
35 #include "uint8NDArray.h" | |
36 | |
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37 namespace octave |
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38 { |
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39 class base_text_renderer; |
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40 class text_element; |
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42 class |
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43 OCTINTERP_API |
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44 text_renderer |
21209 | 45 { |
46 public: | |
47 | |
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48 text_renderer (void); |
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49 |
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50 // No copying! |
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51 |
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52 text_renderer (const text_renderer&) = delete; |
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53 |
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54 text_renderer& operator = (const text_renderer&) = delete; |
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55 |
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56 ~text_renderer (void); |
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57 |
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58 bool ok (void) const; |
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59 |
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60 Matrix get_extent (text_element *elt, double rotation = 0.0); |
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61 |
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62 Matrix get_extent (const std::string& txt, double rotation = 0.0, |
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63 const caseless_str& interpreter = "tex"); |
21209 | 64 |
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65 void set_anti_aliasing (bool val); |
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66 |
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67 void set_font (const std::string& name, const std::string& weight, |
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68 const std::string& angle, double size); |
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69 |
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70 void set_color (const Matrix& c); |
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72 void text_to_pixels (const std::string& txt, |
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73 uint8NDArray& pxls, Matrix& bbox, |
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74 int halign, int valign, double rotation = 0.0, |
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75 const caseless_str& interpreter = "tex", |
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76 bool handle_rotation = true); |
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78 class font |
21209 | 79 { |
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80 public: |
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81 |
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82 font (void) |
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83 : name (), weight (), angle (), size (0) |
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84 { } |
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85 |
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86 font (const std::string& nm, const std::string& wt, |
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87 const std::string& ang, double sz) |
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88 : name (nm), weight (wt), angle (ang), size (sz) |
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89 { } |
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90 |
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91 font (const font& ft) |
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92 : name (ft.name), weight (ft.weight), angle (ft.angle), |
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93 size (ft.size) |
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94 { } |
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95 |
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96 ~font (void) = default; |
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98 font& operator = (const font& ft) |
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99 { |
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100 if (&ft != this) |
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101 { |
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102 name = ft.name; |
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103 weight = ft.weight; |
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104 angle = ft.angle; |
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105 size = ft.size; |
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106 } |
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107 |
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108 return *this; |
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109 } |
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110 |
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111 std::string get_name (void) const { return name; } |
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112 |
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113 std::string get_weight (void) const { return weight; } |
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115 std::string get_angle (void) const { return angle; } |
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116 |
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117 double get_size (void) const { return size; } |
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118 |
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119 protected: |
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121 std::string name; |
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122 std::string weight; |
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123 std::string angle; |
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124 double size; |
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125 }; |
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126 |
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127 // Container for substrings after parsing. |
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128 |
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129 class string |
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130 { |
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131 public: |
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133 string (const std::string& s, font& f, const double x0, const double y0) |
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134 : str (s), family (f.get_name ()), fnt (f), x (x0), y (y0), z (0.0), |
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135 xdata (), code (0), color (Matrix (1,3,0.0)) |
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136 { } |
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138 string (const string& s) |
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139 : str (s.str), family (s.family), fnt (s.fnt), x (s.x), y (s.y), |
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140 z (s.z), xdata (s.xdata), code (s.code), color (s.color) |
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141 { } |
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143 ~string (void) = default; |
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145 string& operator = (const string& s) |
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146 { |
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147 if (&s != this) |
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148 { |
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149 str = s.str; |
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150 family = s.family; |
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151 fnt = s.fnt; |
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152 x = s.x; |
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153 y = s.y; |
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154 z = s.z; |
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155 xdata = s.xdata; |
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156 code = s.code; |
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157 color = s.color; |
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158 } |
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160 return *this; |
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161 } |
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162 |
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163 void set_string (const std::string& s) { str = s; } |
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164 |
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165 std::string get_string (void) const { return str; } |
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167 std::string get_name (void) const { return fnt.get_name (); } |
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168 |
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169 std::string get_family (void) const { return family; } |
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170 |
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171 void set_family (const std::string& nm) { family = nm; } |
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172 |
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173 std::string get_weight (void) const { return fnt.get_weight (); } |
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174 |
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175 std::string get_angle (void) const { return fnt.get_angle (); } |
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176 |
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177 double get_size (void) const { return fnt.get_size (); } |
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179 void set_x (const double x0) { x = x0; } |
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180 |
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181 double get_x (void) const { return x; } |
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183 void set_xdata (const std::vector<double>& x0) { xdata = x0; } |
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184 |
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185 std::vector<double> get_xdata (void) const { return xdata; } |
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186 |
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187 void set_y (const double y0) { y = y0; } |
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188 |
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189 double get_y (void) const { return y; } |
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191 void set_z (const double z0) { z = z0; } |
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192 |
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193 double get_z (void) const { return z; } |
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195 void set_code (const uint32_t c) { code = c; } |
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196 |
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197 uint32_t get_code (void) const { return code; } |
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199 void set_color (const uint8NDArray& c) |
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200 { |
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201 color(0) = static_cast<double> (c(0)) / 255; |
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202 color(1) = static_cast<double> (c(1)) / 255; |
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203 color(2) = static_cast<double> (c(2)) / 255; |
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204 } |
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205 |
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206 Matrix get_color (void) const { return color; } |
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207 |
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208 private: |
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210 std::string str; |
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211 std::string family; |
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212 font fnt; |
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213 double x, y, z; |
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214 std::vector<double> xdata; |
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215 uint32_t code; |
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216 Matrix color; |
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217 }; |
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218 |
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219 void text_to_strlist (const std::string& txt, |
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220 std::list<string>& lst, Matrix& box, |
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221 int halign, int valign, double rotation = 0.0, |
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222 const caseless_str& interpreter = "tex"); |
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224 private: | |
225 | |
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226 base_text_renderer *rep; |
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227 }; |
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228 } |
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229 |
21209 | 230 #endif |