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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
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38 content_.clear();
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39 lineHeight_ = 0;
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40 }
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41
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42
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43 void GlyphAlphabet::Register(uint32_t unicode,
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44 const Glyph& glyph,
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45 Orthanc::IDynamicObject* payload)
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46 {
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47 std::auto_ptr<Orthanc::IDynamicObject> protection(payload);
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48
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49 // Don't add twice the same character
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50 if (content_.find(unicode) == content_.end())
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51 {
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52 std::auto_ptr<Glyph> raii(new Glyph(glyph));
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53
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54 if (payload != NULL)
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55 {
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56 raii->SetPayload(protection.release());
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57 }
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58
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59 content_[unicode] = raii.release();
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60
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61 lineHeight_ = std::max(lineHeight_, glyph.GetLineHeight());
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62 }
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63 }
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64
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65
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66 void GlyphAlphabet::Register(FontRenderer& renderer,
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67 uint32_t unicode)
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68 {
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69 std::auto_ptr<Glyph> glyph(renderer.Render(unicode));
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70
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71 if (glyph.get() != NULL)
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72 {
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73 Register(unicode, *glyph, glyph->ReleasePayload());
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74 }
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75 }
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76
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77
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78 #if ORTHANC_ENABLE_LOCALE == 1
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79 bool GlyphAlphabet::GetUnicodeFromCodepage(uint32_t& unicode,
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80 unsigned int index,
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81 Orthanc::Encoding encoding)
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82 {
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83 if (index > 255)
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84 {
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85 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
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86 }
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87
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88 std::string character;
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89 character.resize(1);
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90 character[0] = static_cast<unsigned char>(index);
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91
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92 std::string utf8 = Orthanc::Toolbox::ConvertToUtf8(character, encoding, false /* no code extensions */);
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93
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94 if (utf8.empty())
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95 {
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96 // This character is not available in this codepage
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97 return false;
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98 }
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99 else
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100 {
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101 size_t length;
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102 Orthanc::Toolbox::Utf8ToUnicodeCharacter(unicode, length, utf8, 0);
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103 assert(length != 0);
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104 return true;
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105 }
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106 }
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107 #endif
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108
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109
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110 void GlyphAlphabet::Apply(IGlyphVisitor& visitor) const
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111 {
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112 for (Content::const_iterator it = content_.begin(); it != content_.end(); ++it)
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113 {
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114 assert(it->second != NULL);
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115 visitor.Visit(it->first, *it->second);
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116 }
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117 }
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118
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119
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120 void GlyphAlphabet::Apply(ITextVisitor& visitor,
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121 const std::string& utf8) const
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122 {
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123 size_t pos = 0;
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124 int x = 0;
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125 int y = 0;
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126
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127 while (pos < utf8.size())
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128 {
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129 if (utf8[pos] == '\r')
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130 {
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131 // Ignore carriage return
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132 pos++;
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133 }
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134 else if (utf8[pos] == '\n')
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135 {
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136 // This is a newline character
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137 x = 0;
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138 y += static_cast<int>(lineHeight_);
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139
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140 pos++;
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141 }
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142 else
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143 {
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144 uint32_t unicode;
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145 size_t length;
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146 Orthanc::Toolbox::Utf8ToUnicodeCharacter(unicode, length, utf8, pos);
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147
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148 Content::const_iterator glyph = content_.find(unicode);
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149
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150 if (glyph != content_.end())
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151 {
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152 assert(glyph->second != NULL);
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153 const Orthanc::IDynamicObject* payload =
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154 (glyph->second->HasPayload() ? &glyph->second->GetPayload() : NULL);
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155
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156 visitor.Visit(unicode,
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157 x + glyph->second->GetOffsetLeft(),
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158 y + glyph->second->GetOffsetTop(),
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159 glyph->second->GetWidth(),
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160 glyph->second->GetHeight(),
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161 payload);
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162 x += glyph->second->GetAdvanceX();
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163 }
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164
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165 assert(length != 0);
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166 pos += length;
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167 }
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168 }
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169 }
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170 }
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