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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<div class="title">renderer.h</div> </div>
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<a href="a00035.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// File: renderer.h</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// Description: Rendering interface to inject into TessBaseAPI</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">//</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// (C) Copyright 2011, Google Inc.</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">// Licensed under the Apache License, Version 2.0 (the "License");</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">// you may not use this file except in compliance with the License.</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">// You may obtain a copy of the License at</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">// http://www.apache.org/licenses/LICENSE-2.0</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">// Unless required by applicable law or agreed to in writing, software</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// distributed under the License is distributed on an "AS IS" BASIS,</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">// See the License for the specific language governing permissions and</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">// limitations under the License.</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment">//</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"></span> </div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#ifndef TESSERACT_API_RENDERER_H_</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#define TESSERACT_API_RENDERER_H_</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>  </div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment">// To avoid collision with other typenames include the ABSOLUTE MINIMUM</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment">// complexity of includes here. Use forward declarations wherever possible</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment">// and hide includes of complex types in baseapi.cpp.</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <string></span> <span class="comment">// for std::string</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  </div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include "<a class="code" href="a00011.html">genericvector.h</a>"</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include "<a class="code" href="a00029.html">platform.h</a>"</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include "<a class="code" href="a00044.html">strngs.h</a>"</span> <span class="comment">// for STRING</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  </div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="keyword">struct </span>Pix;</div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  </div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="keyword">namespace </span><a class="code" href="a01818.html">tesseract</a> {</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  </div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="keyword">class </span><a class="code" href="a00008.html#a47436d31525552f08492b8dcdfc12755">TessBaseAPI</a>;</div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  </div>
<div class="line"><a name="l00049"></a><span class="lineno"><a class="line" href="a02490.html"> 49</a></span> <span class="keyword">class </span><a class="code" href="a00029.html#a86e51270628c53ce7e2c23b1c2b4490e">TESS_API</a> <a class="code" href="a02490.html">TessResultRenderer</a> {</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keyword">virtual</span> ~<a class="code" href="a02490.html">TessResultRenderer</a>();</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  </div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="comment">// Takes ownership of pointer so must be new'd instance.</span></div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="comment">// Renderers aren't ordered, but appends the sequences of next parameter</span></div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="comment">// and existing next(). The renderers should be unique across both lists.</span></div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keywordtype">void</span> insert(<a class="code" href="a02490.html">TessResultRenderer</a>* next);</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  </div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="comment">// Returns the next renderer or nullptr.</span></div>
<div class="line"><a name="l00059"></a><span class="lineno"><a class="line" href="a02490.html#a8b986f7eee3c6892faa6f070a102b0b1"> 59</a></span>  <a class="code" href="a02490.html">TessResultRenderer</a>* <a class="code" href="a02490.html#a8b986f7eee3c6892faa6f070a102b0b1">next</a>() {</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keywordflow">return</span> next_;</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  }</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  </div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keywordtype">bool</span> BeginDocument(<span class="keyword">const</span> <span class="keywordtype">char</span>* title);</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  </div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keywordtype">bool</span> AddImage(<a class="code" href="a02438.html">TessBaseAPI</a>* api);</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  </div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keywordtype">bool</span> EndDocument();</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  </div>
<div class="line"><a name="l00086"></a><span class="lineno"><a class="line" href="a02490.html#ae902177e443fa16cd93047dfeb50152b"> 86</a></span>  <span class="keyword">const</span> <span class="keywordtype">char</span>* <a class="code" href="a02490.html#ae902177e443fa16cd93047dfeb50152b">file_extension</a>()<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keywordflow">return</span> file_extension_;</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  }</div>
<div class="line"><a name="l00089"></a><span class="lineno"><a class="line" href="a02490.html#a8f231200d397cd24e2d9642f4306a9f0"> 89</a></span>  <span class="keyword">const</span> <span class="keywordtype">char</span>* <a class="code" href="a02490.html#a8f231200d397cd24e2d9642f4306a9f0">title</a>()<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keywordflow">return</span> title_.c_str();</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  }</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  </div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="comment">// Is everything fine? Otherwise something went wrong.</span></div>
<div class="line"><a name="l00094"></a><span class="lineno"><a class="line" href="a02490.html#a7fff8a041ab3a18afa75546e94a6b723"> 94</a></span>  <span class="keywordtype">bool</span> <a class="code" href="a02490.html#a7fff8a041ab3a18afa75546e94a6b723">happy</a>() {</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keywordflow">return</span> happy_;</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  }</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  </div>
<div class="line"><a name="l00107"></a><span class="lineno"><a class="line" href="a02490.html#a2682a4f6c8bc6671baa0ca7336178b08"> 107</a></span>  <span class="keywordtype">int</span> <a class="code" href="a02490.html#a2682a4f6c8bc6671baa0ca7336178b08">imagenum</a>()<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keywordflow">return</span> imagenum_;</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  }</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  </div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keyword">protected</span>:</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <a class="code" href="a00008.html#a79b401fe19433464a13b416108deb755">TessResultRenderer</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* outputbase, <span class="keyword">const</span> <span class="keywordtype">char</span>* extension);</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  </div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="comment">// Hook for specialized handling in BeginDocument()</span></div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keyword">virtual</span> <span class="keywordtype">bool</span> BeginDocumentHandler();</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  </div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="comment">// This must be overridden to render the OCR'd results</span></div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keyword">virtual</span> <span class="keywordtype">bool</span> AddImageHandler(<a class="code" href="a02438.html">TessBaseAPI</a>* api) = 0;</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  </div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="comment">// Hook for specialized handling in EndDocument()</span></div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keyword">virtual</span> <span class="keywordtype">bool</span> EndDocumentHandler();</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  </div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="comment">// Renderers can call this to append '\0' terminated strings into</span></div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="comment">// the output string returned by GetOutput.</span></div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="comment">// This method will grow the output buffer if needed.</span></div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keywordtype">void</span> AppendString(<span class="keyword">const</span> <span class="keywordtype">char</span>* s);</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  </div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="comment">// Renderers can call this to append binary byte sequences into</span></div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="comment">// the output string returned by GetOutput. Note that s is not necessarily</span></div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="comment">// '\0' terminated (and can contain '\0' within it).</span></div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="comment">// This method will grow the output buffer if needed.</span></div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="keywordtype">void</span> AppendData(<span class="keyword">const</span> <span class="keywordtype">char</span>* s, <span class="keywordtype">int</span> len);</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  </div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keyword">private</span>:</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keyword">const</span> <span class="keywordtype">char</span>* file_extension_; <span class="comment">// standard extension for generated output</span></div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <a class="code" href="a02542.html">STRING</a> title_; <span class="comment">// title of document being rendered</span></div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keywordtype">int</span> imagenum_; <span class="comment">// index of last image added</span></div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  </div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  FILE* fout_; <span class="comment">// output file pointer</span></div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <a class="code" href="a02490.html">TessResultRenderer</a>* next_; <span class="comment">// Can link multiple renderers together</span></div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keywordtype">bool</span> happy_; <span class="comment">// I get grumpy when the disk fills up, etc.</span></div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span> };</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  </div>
<div class="line"><a name="l00157"></a><span class="lineno"><a class="line" href="a02494.html"> 157</a></span> <span class="keyword">class </span><a class="code" href="a00029.html#a86e51270628c53ce7e2c23b1c2b4490e">TESS_API</a> <a class="code" href="a02494.html">TessTextRenderer</a> : <span class="keyword">public</span> <a class="code" href="a02490.html">TessResultRenderer</a> {</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keyword">explicit</span> <a class="code" href="a02494.html">TessTextRenderer</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* outputbase);</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  </div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="keyword">protected</span>:</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keywordtype">bool</span> AddImageHandler(<a class="code" href="a02438.html">TessBaseAPI</a>* api) <span class="keyword">override</span>;</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span> };</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  </div>
<div class="line"><a name="l00168"></a><span class="lineno"><a class="line" href="a02498.html"> 168</a></span> <span class="keyword">class </span><a class="code" href="a00029.html#a86e51270628c53ce7e2c23b1c2b4490e">TESS_API</a> <a class="code" href="a02498.html">TessHOcrRenderer</a> : <span class="keyword">public</span> <a class="code" href="a02490.html">TessResultRenderer</a> {</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="keyword">explicit</span> <a class="code" href="a02498.html">TessHOcrRenderer</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* outputbase, <span class="keywordtype">bool</span> font_info);</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="keyword">explicit</span> <a class="code" href="a02498.html">TessHOcrRenderer</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* outputbase);</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  </div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="keyword">protected</span>:</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="keywordtype">bool</span> BeginDocumentHandler() <span class="keyword">override</span>;</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="keywordtype">bool</span> AddImageHandler(<a class="code" href="a02438.html">TessBaseAPI</a>* api) <span class="keyword">override</span>;</div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="keywordtype">bool</span> EndDocumentHandler() <span class="keyword">override</span>;</div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  </div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <span class="keyword">private</span>:</div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="keywordtype">bool</span> font_info_; <span class="comment">// whether to print font information</span></div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span> };</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  </div>
<div class="line"><a name="l00185"></a><span class="lineno"><a class="line" href="a02502.html"> 185</a></span> <span class="keyword">class </span><a class="code" href="a00029.html#a86e51270628c53ce7e2c23b1c2b4490e">TESS_API</a> <a class="code" href="a02502.html">TessAltoRenderer</a> : <span class="keyword">public</span> <a class="code" href="a02490.html">TessResultRenderer</a> {</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="keyword">explicit</span> <a class="code" href="a02502.html">TessAltoRenderer</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* outputbase);</div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  </div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="keyword">protected</span>:</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keywordtype">bool</span> BeginDocumentHandler() <span class="keyword">override</span>;</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="keywordtype">bool</span> AddImageHandler(<a class="code" href="a02438.html">TessBaseAPI</a>* api) <span class="keyword">override</span>;</div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <span class="keywordtype">bool</span> EndDocumentHandler() <span class="keyword">override</span>;</div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span> };</div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  </div>
<div class="line"><a name="l00198"></a><span class="lineno"><a class="line" href="a02506.html"> 198</a></span> <span class="keyword">class </span><a class="code" href="a00029.html#a86e51270628c53ce7e2c23b1c2b4490e">TESS_API</a> <a class="code" href="a02506.html">TessTsvRenderer</a> : <span class="keyword">public</span> <a class="code" href="a02490.html">TessResultRenderer</a> {</div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="keyword">explicit</span> <a class="code" href="a02506.html">TessTsvRenderer</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* outputbase, <span class="keywordtype">bool</span> font_info);</div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="keyword">explicit</span> <a class="code" href="a02506.html">TessTsvRenderer</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* outputbase);</div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  </div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="keyword">protected</span>:</div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <span class="keywordtype">bool</span> BeginDocumentHandler() <span class="keyword">override</span>;</div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keywordtype">bool</span> AddImageHandler(<a class="code" href="a02438.html">TessBaseAPI</a>* api) <span class="keyword">override</span>;</div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="keywordtype">bool</span> EndDocumentHandler() <span class="keyword">override</span>;</div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  </div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="keyword">private</span>:</div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="keywordtype">bool</span> font_info_; <span class="comment">// whether to print font information</span></div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span> };</div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  </div>
<div class="line"><a name="l00215"></a><span class="lineno"><a class="line" href="a02510.html"> 215</a></span> <span class="keyword">class </span><a class="code" href="a00029.html#a86e51270628c53ce7e2c23b1c2b4490e">TESS_API</a> <a class="code" href="a02510.html">TessPDFRenderer</a> : <span class="keyword">public</span> <a class="code" href="a02490.html">TessResultRenderer</a> {</div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="comment">// datadir is the location of the TESSDATA. We need it because</span></div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="comment">// we load a custom PDF font from this location.</span></div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <a class="code" href="a02510.html">TessPDFRenderer</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* outputbase, <span class="keyword">const</span> <span class="keywordtype">char</span>* datadir,</div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="keywordtype">bool</span> textonly = <span class="keyword">false</span>);</div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  </div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="keyword">protected</span>:</div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="keywordtype">bool</span> BeginDocumentHandler() <span class="keyword">override</span>;</div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <span class="keywordtype">bool</span> AddImageHandler(<a class="code" href="a02438.html">TessBaseAPI</a>* api) <span class="keyword">override</span>;</div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="keywordtype">bool</span> EndDocumentHandler() <span class="keyword">override</span>;</div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  </div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="keyword">private</span>:</div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  <span class="comment">// We don't want to have every image in memory at once,</span></div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <span class="comment">// so we store some metadata as we go along producing</span></div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <span class="comment">// PDFs one page at a time. At the end, that metadata is</span></div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <span class="comment">// used to make everything that isn't easily handled in a</span></div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="comment">// streaming fashion.</span></div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="keywordtype">long</span> <span class="keywordtype">int</span> obj_; <span class="comment">// counter for PDF objects</span></div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <a class="code" href="a02434.html">GenericVector<long int></a> offsets_; <span class="comment">// offset of every PDF object in bytes</span></div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  <a class="code" href="a02434.html">GenericVector<long int></a> pages_; <span class="comment">// object number for every /Page object</span></div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <a class="code" href="a01622.html#aca454f84dd198a937af6499dd758aa3d">std::string</a> datadir_; <span class="comment">// where to find the custom font</span></div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <span class="keywordtype">bool</span> textonly_; <span class="comment">// skip images if set</span></div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <span class="comment">// Bookkeeping only. DIY = Do It Yourself.</span></div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <span class="keywordtype">void</span> AppendPDFObjectDIY(<span class="keywordtype">size_t</span> objectsize);</div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  <span class="comment">// Bookkeeping + emit data.</span></div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="keywordtype">void</span> AppendPDFObject(<span class="keyword">const</span> <span class="keywordtype">char</span>* data);</div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <span class="comment">// Create the /Contents object for an entire page.</span></div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  <span class="keywordtype">char</span>* GetPDFTextObjects(<a class="code" href="a02438.html">TessBaseAPI</a>* api, <span class="keywordtype">double</span> width, <span class="keywordtype">double</span> height);</div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="comment">// Turn an image into a PDF object. Only transcode if we have to.</span></div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  <span class="keyword">static</span> <span class="keywordtype">bool</span> imageToPDFObj(Pix* pix, <span class="keyword">const</span> <span class="keywordtype">char</span>* filename, <span class="keywordtype">long</span> <span class="keywordtype">int</span> objnum,</div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <span class="keywordtype">char</span>** pdf_object, <span class="keywordtype">long</span> <span class="keywordtype">int</span>* pdf_object_size,</div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <span class="keywordtype">int</span> jpg_quality);</div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span> };</div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  </div>
<div class="line"><a name="l00253"></a><span class="lineno"><a class="line" href="a02514.html"> 253</a></span> <span class="keyword">class </span><a class="code" href="a00029.html#a86e51270628c53ce7e2c23b1c2b4490e">TESS_API</a> <a class="code" href="a02514.html">TessUnlvRenderer</a> : <span class="keyword">public</span> <a class="code" href="a02490.html">TessResultRenderer</a> {</div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="keyword">explicit</span> <a class="code" href="a02514.html">TessUnlvRenderer</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* outputbase);</div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  </div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  <span class="keyword">protected</span>:</div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  <span class="keywordtype">bool</span> AddImageHandler(<a class="code" href="a02438.html">TessBaseAPI</a>* api) <span class="keyword">override</span>;</div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span> };</div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  </div>
<div class="line"><a name="l00264"></a><span class="lineno"><a class="line" href="a02518.html"> 264</a></span> <span class="keyword">class </span><a class="code" href="a00029.html#a86e51270628c53ce7e2c23b1c2b4490e">TESS_API</a> <a class="code" href="a02518.html">TessLSTMBoxRenderer</a> : <span class="keyword">public</span> <a class="code" href="a02490.html">TessResultRenderer</a> {</div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  <span class="keyword">explicit</span> <a class="code" href="a02518.html">TessLSTMBoxRenderer</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* outputbase);</div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  </div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  <span class="keyword">protected</span>:</div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  <span class="keywordtype">bool</span> AddImageHandler(<a class="code" href="a02438.html">TessBaseAPI</a>* api) <span class="keyword">override</span>;</div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span> };</div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  </div>
<div class="line"><a name="l00275"></a><span class="lineno"><a class="line" href="a02522.html"> 275</a></span> <span class="keyword">class </span><a class="code" href="a00029.html#a86e51270628c53ce7e2c23b1c2b4490e">TESS_API</a> <a class="code" href="a02522.html">TessBoxTextRenderer</a> : <span class="keyword">public</span> <a class="code" href="a02490.html">TessResultRenderer</a> {</div>
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  <span class="keyword">explicit</span> <a class="code" href="a02522.html">TessBoxTextRenderer</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* outputbase);</div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  </div>
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  <span class="keyword">protected</span>:</div>
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  <span class="keywordtype">bool</span> AddImageHandler(<a class="code" href="a02438.html">TessBaseAPI</a>* api) <span class="keyword">override</span>;</div>
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span> };</div>
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  </div>
<div class="line"><a name="l00286"></a><span class="lineno"><a class="line" href="a02526.html"> 286</a></span> <span class="keyword">class </span><a class="code" href="a00029.html#a86e51270628c53ce7e2c23b1c2b4490e">TESS_API</a> <a class="code" href="a02526.html">TessWordStrBoxRenderer</a> : <span class="keyword">public</span> <a class="code" href="a02490.html">TessResultRenderer</a> {</div>
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  <span class="keyword">explicit</span> <a class="code" href="a02526.html">TessWordStrBoxRenderer</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* outputbase);</div>
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  </div>
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  <span class="keyword">protected</span>:</div>
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  <span class="keywordtype">bool</span> AddImageHandler(<a class="code" href="a02438.html">TessBaseAPI</a>* api) <span class="keyword">override</span>;</div>
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span> };</div>
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  </div>
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span> <span class="preprocessor">#ifndef DISABLED_LEGACY_ENGINE</span></div>
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  </div>
<div class="line"><a name="l00299"></a><span class="lineno"><a class="line" href="a02530.html"> 299</a></span> <span class="keyword">class </span><a class="code" href="a00029.html#a86e51270628c53ce7e2c23b1c2b4490e">TESS_API</a> <a class="code" href="a02530.html">TessOsdRenderer</a> : <span class="keyword">public</span> <a class="code" href="a02490.html">TessResultRenderer</a> {</div>
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  <span class="keyword">explicit</span> <a class="code" href="a02530.html">TessOsdRenderer</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* outputbase);</div>
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  </div>
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  <span class="keyword">protected</span>:</div>
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  <span class="keywordtype">bool</span> AddImageHandler(<a class="code" href="a02438.html">TessBaseAPI</a>* api) <span class="keyword">override</span>;</div>
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span> };</div>
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  </div>
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span> <span class="preprocessor">#endif // ndef DISABLED_LEGACY_ENGINE</span></div>
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  </div>
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span> } <span class="comment">// namespace tesseract.</span></div>
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  </div>
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span> <span class="preprocessor">#endif // TESSERACT_API_RENDERER_H_</span></div>
</div><!-- fragment --></div><!-- contents -->
</div><!-- doc-content -->
<div class="ttc" id="aa01622_html_aca454f84dd198a937af6499dd758aa3d"><div class="ttname"><a href="a01622.html#aca454f84dd198a937af6499dd758aa3d">string</a></div><div class="ttdeci">std::string string</div><div class="ttdef"><b>Definition:</b> <a href="a01622_source.html#l00021">equationdetect_test.cc:21</a></div></div>
<div class="ttc" id="aa00044_html"><div class="ttname"><a href="a00044.html">strngs.h</a></div></div>
<div class="ttc" id="aa02494_html"><div class="ttname"><a href="a02494.html">tesseract::TessTextRenderer</a></div><div class="ttdef"><b>Definition:</b> <a href="a00035_source.html#l00157">renderer.h:157</a></div></div>
<div class="ttc" id="aa02490_html_a8b986f7eee3c6892faa6f070a102b0b1"><div class="ttname"><a href="a02490.html#a8b986f7eee3c6892faa6f070a102b0b1">tesseract::TessResultRenderer::next</a></div><div class="ttdeci">TessResultRenderer * next()</div><div class="ttdef"><b>Definition:</b> <a href="a00035_source.html#l00059">renderer.h:59</a></div></div>
<div class="ttc" id="aa00029_html"><div class="ttname"><a href="a00029.html">platform.h</a></div></div>
<div class="ttc" id="aa02542_html"><div class="ttname"><a href="a02542.html">STRING</a></div><div class="ttdef"><b>Definition:</b> <a href="a00044_source.html#l00045">strngs.h:45</a></div></div>
<div class="ttc" id="aa02530_html"><div class="ttname"><a href="a02530.html">tesseract::TessOsdRenderer</a></div><div class="ttdef"><b>Definition:</b> <a href="a00035_source.html#l00299">renderer.h:299</a></div></div>
<div class="ttc" id="aa02522_html"><div class="ttname"><a href="a02522.html">tesseract::TessBoxTextRenderer</a></div><div class="ttdef"><b>Definition:</b> <a href="a00035_source.html#l00275">renderer.h:275</a></div></div>
<div class="ttc" id="aa02510_html"><div class="ttname"><a href="a02510.html">tesseract::TessPDFRenderer</a></div><div class="ttdef"><b>Definition:</b> <a href="a00035_source.html#l00215">renderer.h:215</a></div></div>
<div class="ttc" id="aa00011_html"><div class="ttname"><a href="a00011.html">genericvector.h</a></div></div>
<div class="ttc" id="aa02502_html"><div class="ttname"><a href="a02502.html">tesseract::TessAltoRenderer</a></div><div class="ttdef"><b>Definition:</b> <a href="a00035_source.html#l00185">renderer.h:185</a></div></div>
<div class="ttc" id="aa02438_html"><div class="ttname"><a href="a02438.html">tesseract::TessBaseAPI</a></div><div class="ttdef"><b>Definition:</b> <a href="a00005_source.html#l00098">baseapi.h:98</a></div></div>
<div class="ttc" id="aa01818_html"><div class="ttname"><a href="a01818.html">tesseract</a></div><div class="ttdef"><b>Definition:</b> <a href="a00005_source.html#l00065">baseapi.h:65</a></div></div>
<div class="ttc" id="aa02518_html"><div class="ttname"><a href="a02518.html">tesseract::TessLSTMBoxRenderer</a></div><div class="ttdef"><b>Definition:</b> <a href="a00035_source.html#l00264">renderer.h:264</a></div></div>
<div class="ttc" id="aa02434_html"><div class="ttname"><a href="a02434.html">GenericVector< long int ></a></div></div>
<div class="ttc" id="aa02490_html_a8f231200d397cd24e2d9642f4306a9f0"><div class="ttname"><a href="a02490.html#a8f231200d397cd24e2d9642f4306a9f0">tesseract::TessResultRenderer::title</a></div><div class="ttdeci">const char * title() const</div><div class="ttdef"><b>Definition:</b> <a href="a00035_source.html#l00089">renderer.h:89</a></div></div>
<div class="ttc" id="aa02490_html"><div class="ttname"><a href="a02490.html">tesseract::TessResultRenderer</a></div><div class="ttdef"><b>Definition:</b> <a href="a00035_source.html#l00049">renderer.h:49</a></div></div>
<div class="ttc" id="aa02526_html"><div class="ttname"><a href="a02526.html">tesseract::TessWordStrBoxRenderer</a></div><div class="ttdef"><b>Definition:</b> <a href="a00035_source.html#l00286">renderer.h:286</a></div></div>
<div class="ttc" id="aa02514_html"><div class="ttname"><a href="a02514.html">tesseract::TessUnlvRenderer</a></div><div class="ttdef"><b>Definition:</b> <a href="a00035_source.html#l00253">renderer.h:253</a></div></div>
<div class="ttc" id="aa00029_html_a86e51270628c53ce7e2c23b1c2b4490e"><div class="ttname"><a href="a00029.html#a86e51270628c53ce7e2c23b1c2b4490e">TESS_API</a></div><div class="ttdeci">#define TESS_API</div><div class="ttdef"><b>Definition:</b> <a href="a00029_source.html#l00054">platform.h:54</a></div></div>
<div class="ttc" id="aa02506_html"><div class="ttname"><a href="a02506.html">tesseract::TessTsvRenderer</a></div><div class="ttdef"><b>Definition:</b> <a href="a00035_source.html#l00198">renderer.h:198</a></div></div>
<div class="ttc" id="aa02490_html_ae902177e443fa16cd93047dfeb50152b"><div class="ttname"><a href="a02490.html#ae902177e443fa16cd93047dfeb50152b">tesseract::TessResultRenderer::file_extension</a></div><div class="ttdeci">const char * file_extension() const</div><div class="ttdef"><b>Definition:</b> <a href="a00035_source.html#l00086">renderer.h:86</a></div></div>
<div class="ttc" id="aa02490_html_a2682a4f6c8bc6671baa0ca7336178b08"><div class="ttname"><a href="a02490.html#a2682a4f6c8bc6671baa0ca7336178b08">tesseract::TessResultRenderer::imagenum</a></div><div class="ttdeci">int imagenum() const</div><div class="ttdef"><b>Definition:</b> <a href="a00035_source.html#l00107">renderer.h:107</a></div></div>
<div class="ttc" id="aa02490_html_a7fff8a041ab3a18afa75546e94a6b723"><div class="ttname"><a href="a02490.html#a7fff8a041ab3a18afa75546e94a6b723">tesseract::TessResultRenderer::happy</a></div><div class="ttdeci">bool happy()</div><div class="ttdef"><b>Definition:</b> <a href="a00035_source.html#l00094">renderer.h:94</a></div></div>
<div class="ttc" id="aa00008_html_a47436d31525552f08492b8dcdfc12755"><div class="ttname"><a href="a00008.html#a47436d31525552f08492b8dcdfc12755">TessBaseAPI</a></div><div class="ttdeci">struct TessBaseAPI TessBaseAPI</div><div class="ttdef"><b>Definition:</b> <a href="a00008_source.html#l00072">capi.h:72</a></div></div>
<div class="ttc" id="aa00008_html_a79b401fe19433464a13b416108deb755"><div class="ttname"><a href="a00008.html#a79b401fe19433464a13b416108deb755">TessResultRenderer</a></div><div class="ttdeci">struct TessResultRenderer TessResultRenderer</div><div class="ttdef"><b>Definition:</b> <a href="a00008_source.html#l00071">capi.h:71</a></div></div>
<div class="ttc" id="aa02498_html"><div class="ttname"><a href="a02498.html">tesseract::TessHOcrRenderer</a></div><div class="ttdef"><b>Definition:</b> <a href="a00035_source.html#l00168">renderer.h:168</a></div></div>
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