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1 /* |
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2 |
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3 Copyright (C) 2016 John W. Eaton |
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4 Copyright (C) 2009-2015 Michael Goffioul |
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5 |
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6 This file is part of Octave. |
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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 the |
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10 Free Software Foundation; either version 3 of the License, or (at your |
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11 option) any later version. |
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12 |
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13 Octave is distributed in the hope that it will be useful, but WITHOUT |
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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16 for more details. |
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17 |
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18 You should have received a copy of the GNU General Public License |
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19 along with Octave; see the file COPYING. If not, see |
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20 <http://www.gnu.org/licenses/>. |
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21 |
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22 */ |
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23 |
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24 #if ! defined (octave_text_renderer_h) |
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25 #define octave_text_renderer_h 1 |
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26 |
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27 #include <list> |
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28 #include <string> |
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29 |
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30 #include "caseless-str.h" |
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31 #include "dMatrix.h" |
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32 #include "uint8NDArray.h" |
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33 |
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34 #include "txt-eng.h" |
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35 |
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36 class base_text_renderer; |
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37 |
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38 class |
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39 OCTINTERP_API |
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40 text_renderer |
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41 { |
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42 public: |
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43 |
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44 text_renderer (void); |
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45 |
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46 ~text_renderer (void); |
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47 |
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48 bool ok (void) const; |
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49 |
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50 Matrix get_extent (text_element *elt, double rotation = 0.0); |
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51 |
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52 Matrix get_extent (const std::string& txt, double rotation = 0.0, |
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53 const caseless_str& interpreter = "tex"); |
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54 |
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55 void set_font (const std::string& name, const std::string& weight, |
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56 const std::string& angle, double size); |
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57 |
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58 void set_color (const Matrix& c); |
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59 |
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60 void text_to_pixels (const std::string& txt, |
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61 uint8NDArray& pxls, Matrix& bbox, |
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62 int halign, int valign, double rotation = 0.0, |
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63 const caseless_str& interpreter = "tex", |
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64 bool handle_rotation = true); |
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65 |
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66 class font |
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67 { |
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68 public: |
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69 |
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70 font (void) |
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71 : name (), weight (), angle (), size (0) |
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72 { } |
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73 |
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74 font (const std::string& nm, const std::string& wt, |
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75 const std::string& ang, double sz) |
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76 : name (nm), weight (wt), angle (ang), size (sz) |
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77 { } |
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78 |
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79 font (const font& ft) |
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80 : name (ft.name), weight (ft.weight), angle (ft.angle), |
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81 size (ft.size) |
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82 { } |
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83 |
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84 ~font (void) { } |
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85 |
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86 font& operator = (const font& ft) |
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87 { |
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88 if (&ft != this) |
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89 { |
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90 name = ft.name; |
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91 weight = ft.weight; |
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92 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 return *this; |
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97 } |
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98 |
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99 std::string get_name (void) const { return name; } |
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100 |
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101 std::string get_weight (void) const { return weight; } |
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102 |
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103 std::string get_angle (void) const { return angle; } |
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104 |
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105 double get_size (void) const { return size; } |
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106 |
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107 protected: |
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108 |
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109 std::string name; |
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110 std::string weight; |
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111 std::string angle; |
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112 double size; |
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113 }; |
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114 |
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115 // Container for substrings after parsing. |
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116 |
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117 class string |
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118 { |
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119 public: |
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120 |
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121 string (const std::string& s, font& f, const double x0, const double y0) |
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122 : str (s), fnt (f), x (x0), y (y0), z (0.0), code (0), |
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123 color (Matrix (1,3,0.0)) |
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124 { } |
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125 |
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126 string (const string& s) |
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127 : str (s.str), fnt (s.fnt), x (s.x), y (s.y), code (s.code), |
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128 color (s.color) |
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129 { } |
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130 |
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131 ~string (void) { } |
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132 |
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133 string& operator = (const string& s) |
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134 { |
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135 if (&s != this) |
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136 { |
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137 str = s.str; |
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138 fnt = s.fnt; |
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139 x = s.x; |
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140 y = s.y; |
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141 code = s.code; |
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142 color = s.color; |
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143 } |
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144 |
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145 return *this; |
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146 } |
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147 |
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148 void set_string (const std::string& s) { str = s; } |
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149 |
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150 std::string get_string (void) const { return str; } |
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151 |
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152 std::string get_name (void) const { return fnt.get_name (); } |
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153 |
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154 std::string get_weight (void) const { return fnt.get_weight (); } |
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155 |
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156 std::string get_angle (void) const { return fnt.get_angle (); } |
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157 |
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158 double get_size (void) const { return fnt.get_size (); } |
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159 |
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160 void set_x (const double x0) { x = x0; } |
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161 |
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162 double get_x (void) const { return x; } |
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163 |
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164 void set_y (const double y0) { y = y0; } |
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165 |
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166 double get_y (void) const { return y; } |
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167 |
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168 void set_z (const double z0) { z = z0; } |
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169 |
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170 double get_z (void) const { return z; } |
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171 |
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172 void set_code (const uint32_t c) { code = c; } |
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173 |
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174 uint32_t get_code (void) const { return code; } |
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175 |
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176 void set_color (const uint8NDArray& c) |
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177 { |
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178 color(0) = static_cast<double> (c(0)) / 255; |
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179 color(1) = static_cast<double> (c(1)) / 255; |
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180 color(2) = static_cast<double> (c(2)) / 255; |
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181 } |
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182 |
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183 Matrix get_color (void) const { return color; } |
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184 |
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185 private: |
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186 |
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187 std::string str; |
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188 font fnt; |
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189 double x, y, z; |
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190 uint32_t code; |
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191 Matrix color; |
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192 }; |
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193 |
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194 void text_to_strlist (const std::string& txt, |
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195 std::list<string>& lst, Matrix& box, |
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196 int halign, int valign, double rotation = 0.0, |
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197 const caseless_str& interpreter = "tex"); |
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198 |
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199 private: |
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200 |
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201 base_text_renderer *rep; |
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202 |
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203 // No copying! |
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204 |
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205 text_renderer (const text_renderer&); |
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206 |
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207 text_renderer& operator = (const text_renderer&); |
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208 }; |
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209 |
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210 #endif |
