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annotate Core/Images/Font.h @ 2423:5a7c5c541a1d

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Built-in decoding of palette images
author Sebastien Jodogne <s.jodogne@gmail.com>
date Mon, 09 Oct 2017 21:58:08 +0200
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children 878b59270859
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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 Osimis, 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 #include "ImageAccessor.h"
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37
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38 #include <stdint.h>
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39 #include <vector>
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40 #include <map>
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41 #include <boost/noncopyable.hpp>
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42
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43 namespace Orthanc
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44 {
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45 class Font : public boost::noncopyable
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46 {
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47 private:
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48 struct Character
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49 {
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50 unsigned int width_;
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51 unsigned int height_;
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52 unsigned int top_;
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53 unsigned int advance_;
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54 std::vector<uint8_t> bitmap_;
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55 };
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56
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57 typedef std::map<char, Character*> Characters;
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58
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59 std::string name_;
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60 unsigned int size_;
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61 Characters characters_;
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62 unsigned int maxHeight_;
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63
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64 void DrawCharacter(ImageAccessor& target,
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65 const Character& character,
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66 int x,
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67 int y,
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68 const uint8_t color[4]) const;
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69
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70 void DrawInternal(ImageAccessor& target,
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71 const std::string& utf8,
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72 int x,
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73 int y,
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74 const uint8_t color[4]) const;
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75
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76 public:
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77 Font() :
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78 size_(0),
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79 maxHeight_(0)
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80 {
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81 }
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82
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83 ~Font();
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84
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85 void LoadFromMemory(const std::string& font);
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86
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87 #if ORTHANC_SANDBOXED == 0
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88 void LoadFromFile(const std::string& path);
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89 #endif
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90
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91 const std::string& GetName() const
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92 {
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93 return name_;
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94 }
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95
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96 unsigned int GetSize() const
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97 {
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98 return size_;
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99 }
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100
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101 void Draw(ImageAccessor& target,
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102 const std::string& utf8,
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103 int x,
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104 int y,
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105 uint8_t grayscale) const;
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106
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107 void Draw(ImageAccessor& target,
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108 const std::string& utf8,
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109 int x,
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110 int y,
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111 uint8_t r,
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112 uint8_t g,
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113 uint8_t b) const;
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114 };
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115 }