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576
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1 /**
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2 * Stone of Orthanc
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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) 2017-2019 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 Affero 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 * Affero 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 Affero General Public License
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 **/
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20
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21
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22 #include "GlyphAlphabet.h"
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23
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24 #include <Core/OrthancException.h>
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25 #include <Core/Toolbox.h>
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26
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27
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28 namespace OrthancStone
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29 {
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30 void GlyphAlphabet::Clear()
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31 {
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32 for (Content::const_iterator it = content_.begin(); it != content_.end(); ++it)
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33 {
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34 assert(it->second != NULL);
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35 delete it->second;
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36 }
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37 content_.clear();
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38 lineHeight_ = 0;
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39 }
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40
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41
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42 void GlyphAlphabet::Register(uint32_t unicode,
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43 const Glyph& glyph,
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44 Orthanc::IDynamicObject* payload)
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45 {
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46 std::auto_ptr<Orthanc::IDynamicObject> protection(payload);
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47
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48 // Don't add twice the same character
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49 if (content_.find(unicode) == content_.end())
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50 {
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51 std::auto_ptr<Glyph> raii(new Glyph(glyph));
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52
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53 if (payload != NULL)
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54 {
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55 raii->SetPayload(protection.release());
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56 }
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57
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58 content_[unicode] = raii.release();
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59
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60 lineHeight_ = std::max(lineHeight_, glyph.GetLineHeight());
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61 }
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62 }
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63
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64
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65 void GlyphAlphabet::Register(FontRenderer& renderer,
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66 uint32_t unicode)
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67 {
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68 std::auto_ptr<Glyph> glyph(renderer.Render(unicode));
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69
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70 if (glyph.get() != NULL)
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71 {
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72 Register(unicode, *glyph, glyph->ReleasePayload());
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73 }
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74 }
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75
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76
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77 #if ORTHANC_ENABLE_LOCALE == 1
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78 bool GlyphAlphabet::GetUnicodeFromCodepage(uint32_t& unicode,
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79 unsigned int index,
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80 Orthanc::Encoding encoding)
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81 {
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82 if (index > 255)
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83 {
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84 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
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85 }
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86
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87 std::string character;
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88 character.resize(1);
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89 character[0] = static_cast<unsigned char>(index);
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90
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91 std::string utf8 = Orthanc::Toolbox::ConvertToUtf8(character, encoding, false /* no code extensions */);
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92
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93 if (utf8.empty())
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94 {
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95 // This character is not available in this codepage
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96 return false;
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97 }
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98 else
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99 {
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100 size_t length;
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101 Orthanc::Toolbox::Utf8ToUnicodeCharacter(unicode, length, utf8, 0);
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102 assert(length != 0);
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103 return true;
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104 }
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105 }
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106 #endif
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107
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108
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109 void GlyphAlphabet::Apply(IGlyphVisitor& visitor) const
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110 {
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111 for (Content::const_iterator it = content_.begin(); it != content_.end(); ++it)
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112 {
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113 assert(it->second != NULL);
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114 visitor.Visit(it->first, *it->second);
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115 }
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116 }
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117
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118
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119 void GlyphAlphabet::Apply(ITextVisitor& visitor,
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120 const std::string& utf8) const
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121 {
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122 size_t pos = 0;
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123 int x = 0;
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124 int y = 0;
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125
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126 while (pos < utf8.size())
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127 {
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128 if (utf8[pos] == '\r')
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129 {
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130 // Ignore carriage return
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131 pos++;
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132 }
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133 else if (utf8[pos] == '\n')
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134 {
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135 // This is a newline character
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136 x = 0;
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137 y += static_cast<int>(lineHeight_);
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138
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139 pos++;
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140 }
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141 else
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142 {
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143 uint32_t unicode;
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144 size_t length;
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145 Orthanc::Toolbox::Utf8ToUnicodeCharacter(unicode, length, utf8, pos);
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146
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147 Content::const_iterator glyph = content_.find(unicode);
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148
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149 if (glyph != content_.end())
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150 {
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151 assert(glyph->second != NULL);
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152 const Orthanc::IDynamicObject* payload =
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153 (glyph->second->HasPayload() ? &glyph->second->GetPayload() : NULL);
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154
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155 visitor.Visit(unicode,
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156 x + glyph->second->GetOffsetLeft(),
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157 y + glyph->second->GetOffsetTop(),
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158 glyph->second->GetWidth(),
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159 glyph->second->GetHeight(),
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160 payload);
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161 x += glyph->second->GetAdvanceX();
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162 }
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163
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164 assert(length != 0);
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165 pos += length;
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166 }
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167 }
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168 }
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169 }
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