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annotate Core/Images/Font.h @ 2956:bfee0b9f3209

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author Sebastien Jodogne <s.jodogne@gmail.com>
date Mon, 03 Dec 2018 15:11:42 +0100
parents 058851941abe
children 4e43e67f8ecf
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
1900
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2018 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU General Public License as
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9 * published by the Free Software Foundation, either version 3 of the
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10 * License, or (at your option) any later version.
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11 *
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12 * In addition, as a special exception, the copyright holders of this
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13 * program give permission to link the code of its release with the
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14 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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15 * that use the same license as the "OpenSSL" library), and distribute
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16 * the linked executables. You must obey the GNU General Public License
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17 * in all respects for all of the code used other than "OpenSSL". If you
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18 * modify file(s) with this exception, you may extend this exception to
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19 * your version of the file(s), but you are not obligated to do so. If
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20 * you do not wish to do so, delete this exception statement from your
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21 * version. If you delete this exception statement from all source files
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22 * in the program, then also delete it here.
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23 *
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24 * This program is distributed in the hope that it will be useful, but
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25 * WITHOUT ANY WARRANTY; without even the implied warranty of
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26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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27 * General Public License for more details.
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28 *
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29 * You should have received a copy of the GNU General Public License
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30 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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31 **/
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32
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33
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34 #pragma once
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35
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36 #if !defined(ORTHANC_HAS_EMBEDDED_RESOURCES)
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37 # error Macro ORTHANC_HAS_EMBEDDED_RESOURCES must be defined
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38 #endif
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39
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40 #if ORTHANC_HAS_EMBEDDED_RESOURCES == 1
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41 # include <EmbeddedResources.h> // Autogenerated file
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42 #endif
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43
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44 #include "ImageAccessor.h"
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45
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46 #include <stdint.h>
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47 #include <vector>
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48 #include <map>
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49 #include <boost/noncopyable.hpp>
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50
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51 namespace Orthanc
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52 {
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53 class Font : public boost::noncopyable
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54 {
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55 private:
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56 struct Character
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57 {
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58 unsigned int width_;
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59 unsigned int height_;
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60 unsigned int top_;
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61 unsigned int advance_;
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62 std::vector<uint8_t> bitmap_;
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63 };
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64
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65 typedef std::map<char, Character*> Characters;
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66
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67 std::string name_;
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68 unsigned int size_;
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69 Characters characters_;
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70 unsigned int maxHeight_;
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71
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72 void DrawCharacter(ImageAccessor& target,
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73 const Character& character,
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74 int x,
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75 int y,
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76 const uint8_t color[4]) const;
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77
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78 void DrawInternal(ImageAccessor& target,
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79 const std::string& utf8,
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80 int x,
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81 int y,
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82 const uint8_t color[4]) const;
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83
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84 public:
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85 Font() :
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86 size_(0),
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87 maxHeight_(0)
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88 {
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89 }
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90
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91 ~Font();
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92
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93 void LoadFromMemory(const std::string& font);
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94
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95 #if ORTHANC_SANDBOXED == 0
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96 void LoadFromFile(const std::string& path);
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97 #endif
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98
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99 #if ORTHANC_HAS_EMBEDDED_RESOURCES == 1
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100 void LoadFromResource(EmbeddedResources::FileResourceId resource);
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101 #endif
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102
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103 const std::string& GetName() const
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104 {
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105 return name_;
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106 }
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107
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108 unsigned int GetSize() const
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109 {
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110 return size_;
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111 }
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112
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113 void Draw(ImageAccessor& target,
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114 const std::string& utf8,
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115 int x,
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116 int y,
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117 uint8_t grayscale) const;
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118
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119 void Draw(ImageAccessor& target,
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120 const std::string& utf8,
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121 int x,
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122 int y,
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123 uint8_t r,
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124 uint8_t g,
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125 uint8_t b) const;
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126
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127 void ComputeTextExtent(unsigned int& width,
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128 unsigned int& height,
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129 const std::string& utf8) const;
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130
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131 ImageAccessor* Render(const std::string& utf8,
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132 PixelFormat format,
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133 uint8_t r,
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134 uint8_t g,
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135 uint8_t b) const;
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136
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137 ImageAccessor* RenderAlpha(const std::string& utf8) const;
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138 };
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139 }