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annotate OrthancFramework/Sources/Images/Font.h @ 4870:43e613a7756b

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author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 11 Jan 2022 11:15:42 +0100
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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) 2017-2022 Osimis S.A., Belgium
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6 * Copyright (C) 2021-2022 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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7 *
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8 * This program is free software: you can redistribute it and/or
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9 * modify it under the terms of the GNU Lesser General Public License
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10 * as published by the Free Software Foundation, either version 3 of
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11 * the License, or (at your option) any later version.
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12 *
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13 * This program 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 GNU
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16 * Lesser General Public License for more details.
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17 *
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18 * You should have received a copy of the GNU Lesser General Public
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19 * License along with this program. 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 #pragma once
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25
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26 #include "../OrthancFramework.h"
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27
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28 #include "ImageAccessor.h"
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29
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30 #include <stdint.h>
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31 #include <vector>
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32 #include <map>
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33 #include <boost/noncopyable.hpp>
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34
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35 namespace Orthanc
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36 {
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37 class ORTHANC_PUBLIC Font : public boost::noncopyable
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38 {
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39 private:
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40 struct Character
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41 {
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42 unsigned int width_;
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43 unsigned int height_;
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44 unsigned int top_;
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45 unsigned int advance_;
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46 std::vector<uint8_t> bitmap_;
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47 };
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48
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49 typedef std::map<char, Character*> Characters;
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50
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51 std::string name_;
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52 unsigned int size_;
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53 Characters characters_;
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54 unsigned int maxHeight_;
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55
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56 void DrawCharacter(ImageAccessor& target,
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57 const Character& character,
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58 int x,
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59 int y,
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60 const uint8_t color[4]) const;
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61
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62 void DrawInternal(ImageAccessor& target,
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63 const std::string& utf8,
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64 int x,
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65 int y,
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66 const uint8_t color[4]) const;
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67
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68 public:
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69 Font();
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70
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71 ~Font();
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72
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73 void LoadFromMemory(const std::string& font);
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74
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75 #if ORTHANC_SANDBOXED == 0
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76 void LoadFromFile(const std::string& path);
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77 #endif
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78
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79 const std::string& GetName() const;
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80
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81 unsigned int GetSize() const;
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82
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83 void Draw(ImageAccessor& target,
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84 const std::string& utf8,
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85 int x,
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86 int y,
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87 uint8_t grayscale) const;
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88
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89 void Draw(ImageAccessor& target,
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90 const std::string& utf8,
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91 int x,
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92 int y,
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93 uint8_t r,
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94 uint8_t g,
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95 uint8_t b) const;
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96
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97 void ComputeTextExtent(unsigned int& width,
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98 unsigned int& height,
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99 const std::string& utf8) const;
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100
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101 ImageAccessor* Render(const std::string& utf8,
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102 PixelFormat format,
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103 uint8_t r,
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104 uint8_t g,
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105 uint8_t b) const;
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106
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107 ImageAccessor* RenderAlpha(const std::string& utf8) const;
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108 };
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109 }