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annotate OrthancFramework/Sources/Images/Font.h @ 4119:bf7b9edf6b81 framework-lgpl

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re-licensing the OrthancFramework to LGPL, in order to license Stone of Orthanc under LGPL
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 07 Jul 2020 19:17:56 +0200
parents d25f4c0fa160
children 785a2713323e
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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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) 2017-2020 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 Lesser General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Lesser General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Lesser General Public
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18 * License along with this program. If not, see
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19 * <http://www.gnu.org/licenses/>.
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20 **/
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22
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23 #pragma once
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24
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25 #include "../OrthancFramework.h"
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26
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27 #include "ImageAccessor.h"
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28
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29 #include <stdint.h>
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30 #include <vector>
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31 #include <map>
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32 #include <boost/noncopyable.hpp>
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33
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34 namespace Orthanc
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35 {
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36 class ORTHANC_PUBLIC Font : public boost::noncopyable
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37 {
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38 private:
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39 struct Character
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40 {
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41 unsigned int width_;
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42 unsigned int height_;
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43 unsigned int top_;
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44 unsigned int advance_;
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45 std::vector<uint8_t> bitmap_;
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46 };
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47
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48 typedef std::map<char, Character*> Characters;
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49
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50 std::string name_;
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51 unsigned int size_;
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52 Characters characters_;
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53 unsigned int maxHeight_;
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54
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55 void DrawCharacter(ImageAccessor& target,
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56 const Character& character,
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57 int x,
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58 int y,
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59 const uint8_t color[4]) const;
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60
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61 void DrawInternal(ImageAccessor& target,
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62 const std::string& utf8,
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63 int x,
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64 int y,
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65 const uint8_t color[4]) const;
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66
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67 public:
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68 Font() :
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69 size_(0),
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70 maxHeight_(0)
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71 {
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72 }
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73
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74 ~Font();
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75
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76 void LoadFromMemory(const std::string& font);
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77
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78 #if ORTHANC_SANDBOXED == 0
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79 void LoadFromFile(const std::string& path);
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80 #endif
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81
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82 const std::string& GetName() const
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83 {
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84 return name_;
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85 }
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86
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87 unsigned int GetSize() const
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88 {
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89 return size_;
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90 }
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91
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92 void Draw(ImageAccessor& target,
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93 const std::string& utf8,
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94 int x,
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95 int y,
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96 uint8_t grayscale) const;
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97
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98 void Draw(ImageAccessor& target,
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99 const std::string& utf8,
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100 int x,
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101 int y,
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102 uint8_t r,
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103 uint8_t g,
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104 uint8_t b) const;
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105
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106 void ComputeTextExtent(unsigned int& width,
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107 unsigned int& height,
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108 const std::string& utf8) const;
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109
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110 ImageAccessor* Render(const std::string& utf8,
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111 PixelFormat format,
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112 uint8_t r,
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113 uint8_t g,
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114 uint8_t b) const;
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115
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116 ImageAccessor* RenderAlpha(const std::string& utf8) const;
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117 };
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118 }