<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <meta http-equiv="X-UA-Compatible" content="IE=9"/> <meta name="generator" content="Doxygen 1.8.9.1"/> <title>CMU462 Library Documentation: lib/osdtext.h Source File</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="dynsections.js"></script> <link href="search/search.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="search/searchdata.js"></script> <script type="text/javascript" src="search/search.js"></script> <script type="text/javascript"> $(document).ready(function() { init_search(); }); </script> <link href="doxygen.css" rel="stylesheet" type="text/css" /> </head> <body> <div id="top"><!-- do not remove this div, it is closed by doxygen! --> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 56px;"> <td style="padding-left: 0.5em;"> <div id="projectname">CMU462 Library Documentation  <span id="projectnumber">1.0</span> </div> <div id="projectbrief">15-462/15-662: Computer Graphics (Fall 2015)</div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated by Doxygen 1.8.9.1 --> <script type="text/javascript"> var searchBox = new SearchBox("searchBox", "search",false,'Search'); </script> <div id="navrow1" class="tabs"> <ul class="tablist"> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="annotated.html"><span>Classes</span></a></li> <li class="current"><a href="files.html"><span>Files</span></a></li> <li> <div id="MSearchBox" class="MSearchBoxInactive"> <span class="left"> <img id="MSearchSelect" src="search/mag_sel.png" onmouseover="return searchBox.OnSearchSelectShow()" onmouseout="return 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</iframe> </div> <div id="nav-path" class="navpath"> <ul> <li class="navelem"><a class="el" href="dir_97aefd0d527b934f1d99a682da8fe6a9.html">lib</a></li> </ul> </div> </div><!-- top --> <div class="header"> <div class="headertitle"> <div class="title">osdtext.h</div> </div> </div><!--header--> <div class="contents"> <div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="preprocessor">#ifndef CMU462_TEXTOSD_H</span></div> <div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="preprocessor">#define CMU462_TEXTOSD_H</span></div> <div class="line"><a name="l00003"></a><span class="lineno"> 3</span> </div> <div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="preprocessor">#include <string></span></div> <div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="preprocessor">#include <vector></span></div> <div class="line"><a name="l00006"></a><span class="lineno"> 6</span> </div> <div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor">#include "glew.h"</span></div> <div class="line"><a name="l00008"></a><span class="lineno"> 8</span> </div> <div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#include "color.h"</span></div> <div class="line"><a name="l00010"></a><span class="lineno"> 10</span> </div> <div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// forward declare freetype stuff </span></div> <div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="keyword">struct </span>FT_LibraryRec_; </div> <div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="keyword">typedef</span> <span class="keyword">struct </span>FT_LibraryRec_* FT_Library; </div> <div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="keyword">struct </span>FT_FaceRec_; </div> <div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="keyword">typedef</span> <span class="keyword">struct </span>FT_FaceRec_* FT_Face;</div> <div class="line"><a name="l00016"></a><span class="lineno"> 16</span> </div> <div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="keyword">namespace </span><a class="code" href="namespace_c_m_u462.html">CMU462</a> {</div> <div class="line"><a name="l00018"></a><span class="lineno"> 18</span> </div> <div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment">// base64 encoded embeded font</span></div> <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="keyword">extern</span> <span class="stringliteral">"C"</span> <span class="keywordtype">char</span> osdfont_base64[];</div> <div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div> <div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="keyword">struct </span>OSDLine {</div> <div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  </div> <div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  <span class="comment">// UID of the line</span></div> <div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  <span class="keywordtype">int</span> id;</div> <div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div> <div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  <span class="comment">// screen space anchor position</span></div> <div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  <span class="keywordtype">float</span> x, y;</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="comment">// line content</span></div> <div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  std::string text; </div> <div class="line"><a name="l00032"></a><span class="lineno"> 32</span> </div> <div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="comment">// font size</span></div> <div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  <span class="keywordtype">size_t</span> size;</div> <div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div> <div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="comment">// font color</span></div> <div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  Color color;</div> <div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  </div> <div class="line"><a name="l00039"></a><span class="lineno"> 39</span> };</div> <div class="line"><a name="l00040"></a><span class="lineno"> 40</span> </div> <div class="line"><a name="l00047"></a><span class="lineno"><a class="line" href="class_c_m_u462_1_1_o_s_d_text.html"> 47</a></span> <span class="keyword">class </span><a class="code" href="class_c_m_u462_1_1_o_s_d_text.html">OSDText</a> {</div> <div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keyword">public</span>:</div> <div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  </div> <div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <a class="code" href="class_c_m_u462_1_1_o_s_d_text.html#a1f29bdf4a5b3fe64e113b1a3b8e1a53d">OSDText</a>();</div> <div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div> <div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <a class="code" href="class_c_m_u462_1_1_o_s_d_text.html#a5c74be6102b914d4072aa35a1286e2b1">~OSDText</a>();</div> <div class="line"><a name="l00061"></a><span class="lineno"> 61</span> </div> <div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordtype">int</span> <a class="code" href="class_c_m_u462_1_1_o_s_d_text.html#a23e52280bc19a3aa60e0bd877e7f0ec3">init</a>();</div> <div class="line"><a name="l00068"></a><span class="lineno"> 68</span> </div> <div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keywordtype">void</span> <a class="code" href="class_c_m_u462_1_1_o_s_d_text.html#abba034af05f2a08dbbd1d322fa11e858">render</a>();</div> <div class="line"><a name="l00074"></a><span class="lineno"> 74</span> </div> <div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keywordtype">void</span> <a class="code" href="class_c_m_u462_1_1_o_s_d_text.html#a6ecf6c59bdade3553b0ad0dcaa31548a">resize</a>(<span class="keywordtype">size_t</span> w, <span class="keywordtype">size_t</span> h);</div> <div class="line"><a name="l00080"></a><span class="lineno"> 80</span> </div> <div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keywordtype">int</span> <a class="code" href="class_c_m_u462_1_1_o_s_d_text.html#a63ac65c56661bfc5ffd8a8419bd5fef5">add_line</a>(<span class="keywordtype">float</span> x, <span class="keywordtype">float</span> y, std::string text = <span class="stringliteral">""</span>,</div> <div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordtype">size_t</span> size = 16, <a class="code" href="class_c_m_u462_1_1_color.html">Color</a> color = Color::White);</div> <div class="line"><a name="l00097"></a><span class="lineno"> 97</span> </div> <div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keywordtype">void</span> <a class="code" href="class_c_m_u462_1_1_o_s_d_text.html#a1424f2fb3ab157a59789432a117d2e30">del_line</a>(<span class="keywordtype">int</span> line_id);</div> <div class="line"><a name="l00104"></a><span class="lineno"> 104</span> </div> <div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordtype">void</span> <a class="code" href="class_c_m_u462_1_1_o_s_d_text.html#a3b8eca3d00b2e3d8b4ffefd2c954fb15">set_anchor</a>(<span class="keywordtype">int</span> line_id, <span class="keywordtype">float</span> x, <span class="keywordtype">float</span> y);</div> <div class="line"><a name="l00113"></a><span class="lineno"> 113</span> </div> <div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordtype">void</span> <a class="code" href="class_c_m_u462_1_1_o_s_d_text.html#acc04d475d3e9f1ad4013e7abcc8726a5">set_text</a>(<span class="keywordtype">int</span> line_id, std::string text);</div> <div class="line"><a name="l00121"></a><span class="lineno"> 121</span> </div> <div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keywordtype">void</span> <a class="code" href="class_c_m_u462_1_1_o_s_d_text.html#ad7cfd0bd9f0781c5681af725164783e9">set_size</a>(<span class="keywordtype">int</span> line_id, <span class="keywordtype">size_t</span> size);</div> <div class="line"><a name="l00129"></a><span class="lineno"> 129</span> </div> <div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keywordtype">void</span> <a class="code" href="class_c_m_u462_1_1_o_s_d_text.html#a5bd8361d49244bb3ce2d1f28d06b0b2f">set_color</a>(<span class="keywordtype">int</span> line_id, <a class="code" href="class_c_m_u462_1_1_color.html">Color</a> color);</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="keyword">private</span>:</div> <div class="line"><a name="l00139"></a><span class="lineno"> 139</span> </div> <div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="comment">// draw a single line</span></div> <div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="keywordtype">void</span> draw_line(OSDLine line);</div> <div class="line"><a name="l00142"></a><span class="lineno"> 142</span> </div> <div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="comment">// internal scale factors</span></div> <div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keywordtype">float</span> sx, sy;</div> <div class="line"><a name="l00145"></a><span class="lineno"> 145</span> </div> <div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="comment">// line id counter</span></div> <div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keywordtype">int</span> next_id;</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>  <span class="comment">// freetype</span></div> <div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keywordtype">char</span>* font; <span class="keywordtype">size_t</span> font_size;</div> <div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  FT_Library* ft; FT_Face* face;</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>  <span class="comment">// lines to draw</span></div> <div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  std::vector<OSDLine> lines;</div> <div class="line"><a name="l00155"></a><span class="lineno"> 155</span> </div> <div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="comment">// GL stuff</span></div> <div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  GLuint vbo;</div> <div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  GLuint program;</div> <div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  GLint attribute_coord;</div> <div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  GLint uniform_tex;</div> <div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  GLint uniform_color;</div> <div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  </div> <div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="comment">// GL helpers</span></div> <div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  GLuint compile_shaders();</div> <div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  GLint get_attribu(GLuint program, <span class="keyword">const</span> <span class="keywordtype">char</span> *name);</div> <div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  GLint get_uniform(GLuint program, <span class="keyword">const</span> <span class="keywordtype">char</span> *name);</div> <div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  </div> <div class="line"><a name="l00168"></a><span class="lineno"> 168</span> }; <span class="comment">// class textOSD</span></div> <div class="line"><a name="l00169"></a><span class="lineno"> 169</span> </div> <div class="line"><a name="l00170"></a><span class="lineno"> 170</span> } <span class="comment">// namespace CMU462</span></div> <div class="line"><a name="l00171"></a><span class="lineno"> 171</span> </div> <div class="line"><a name="l00172"></a><span class="lineno"> 172</span> <span class="preprocessor">#endif // CMU462_TEXTOSD_H</span></div> <div class="ttc" id="class_c_m_u462_1_1_o_s_d_text_html_ad7cfd0bd9f0781c5681af725164783e9"><div class="ttname"><a href="class_c_m_u462_1_1_o_s_d_text.html#ad7cfd0bd9f0781c5681af725164783e9">CMU462::OSDText::set_size</a></div><div class="ttdeci">void set_size(int line_id, size_t size)</div><div class="ttdoc">Set the font size of a given line. </div><div class="ttdef"><b>Definition:</b> osdtext.cpp:153</div></div> <div class="ttc" id="class_c_m_u462_1_1_o_s_d_text_html_a6ecf6c59bdade3553b0ad0dcaa31548a"><div class="ttname"><a href="class_c_m_u462_1_1_o_s_d_text.html#a6ecf6c59bdade3553b0ad0dcaa31548a">CMU462::OSDText::resize</a></div><div class="ttdeci">void resize(size_t w, size_t h)</div><div class="ttdoc">Resize internal scales when context size has changed. </div><div class="ttdef"><b>Definition:</b> osdtext.cpp:93</div></div> <div class="ttc" id="class_c_m_u462_1_1_o_s_d_text_html_a5bd8361d49244bb3ce2d1f28d06b0b2f"><div class="ttname"><a href="class_c_m_u462_1_1_o_s_d_text.html#a5bd8361d49244bb3ce2d1f28d06b0b2f">CMU462::OSDText::set_color</a></div><div class="ttdeci">void set_color(int line_id, Color color)</div><div class="ttdoc">Set the font color of a given line. </div><div class="ttdef"><b>Definition:</b> osdtext.cpp:164</div></div> <div class="ttc" id="namespace_c_m_u462_html"><div class="ttname"><a href="namespace_c_m_u462.html">CMU462</a></div><div class="ttdef"><b>Definition:</b> color.cpp:10</div></div> <div class="ttc" id="class_c_m_u462_1_1_o_s_d_text_html_a3b8eca3d00b2e3d8b4ffefd2c954fb15"><div class="ttname"><a href="class_c_m_u462_1_1_o_s_d_text.html#a3b8eca3d00b2e3d8b4ffefd2c954fb15">CMU462::OSDText::set_anchor</a></div><div class="ttdeci">void set_anchor(int line_id, float x, float y)</div><div class="ttdoc">Set the anchor position of a given line. </div><div class="ttdef"><b>Definition:</b> osdtext.cpp:130</div></div> <div class="ttc" id="class_c_m_u462_1_1_o_s_d_text_html_a63ac65c56661bfc5ffd8a8419bd5fef5"><div class="ttname"><a href="class_c_m_u462_1_1_o_s_d_text.html#a63ac65c56661bfc5ffd8a8419bd5fef5">CMU462::OSDText::add_line</a></div><div class="ttdeci">int add_line(float x, float y, std::string text="", size_t size=16, Color color=Color::White)</div><div class="ttdoc">Add a line of text to the OSD. </div><div class="ttdef"><b>Definition:</b> osdtext.cpp:99</div></div> <div class="ttc" id="class_c_m_u462_1_1_o_s_d_text_html_a1424f2fb3ab157a59789432a117d2e30"><div class="ttname"><a href="class_c_m_u462_1_1_o_s_d_text.html#a1424f2fb3ab157a59789432a117d2e30">CMU462::OSDText::del_line</a></div><div class="ttdeci">void del_line(int line_id)</div><div class="ttdoc">Deletes a line. </div><div class="ttdef"><b>Definition:</b> osdtext.cpp:119</div></div> <div class="ttc" id="class_c_m_u462_1_1_o_s_d_text_html_a5c74be6102b914d4072aa35a1286e2b1"><div class="ttname"><a href="class_c_m_u462_1_1_o_s_d_text.html#a5c74be6102b914d4072aa35a1286e2b1">CMU462::OSDText::~OSDText</a></div><div class="ttdeci">~OSDText()</div><div class="ttdoc">Destructor. </div><div class="ttdef"><b>Definition:</b> osdtext.cpp:30</div></div> <div class="ttc" id="class_c_m_u462_1_1_o_s_d_text_html_a23e52280bc19a3aa60e0bd877e7f0ec3"><div class="ttname"><a href="class_c_m_u462_1_1_o_s_d_text.html#a23e52280bc19a3aa60e0bd877e7f0ec3">CMU462::OSDText::init</a></div><div class="ttdeci">int init()</div><div class="ttdoc">Initializes resources required for rendering text. </div><div class="ttdef"><b>Definition:</b> osdtext.cpp:41</div></div> <div class="ttc" id="class_c_m_u462_1_1_o_s_d_text_html_abba034af05f2a08dbbd1d322fa11e858"><div class="ttname"><a href="class_c_m_u462_1_1_o_s_d_text.html#abba034af05f2a08dbbd1d322fa11e858">CMU462::OSDText::render</a></div><div class="ttdeci">void render()</div><div class="ttdoc">Draw the text OSD. </div><div class="ttdef"><b>Definition:</b> osdtext.cpp:80</div></div> <div class="ttc" id="class_c_m_u462_1_1_o_s_d_text_html_acc04d475d3e9f1ad4013e7abcc8726a5"><div class="ttname"><a href="class_c_m_u462_1_1_o_s_d_text.html#acc04d475d3e9f1ad4013e7abcc8726a5">CMU462::OSDText::set_text</a></div><div class="ttdeci">void set_text(int line_id, std::string text)</div><div class="ttdoc">Set the text of a given line. </div><div class="ttdef"><b>Definition:</b> osdtext.cpp:142</div></div> <div class="ttc" id="class_c_m_u462_1_1_o_s_d_text_html"><div class="ttname"><a href="class_c_m_u462_1_1_o_s_d_text.html">CMU462::OSDText</a></div><div class="ttdoc">Provides an interface for text on-screen display. </div><div class="ttdef"><b>Definition:</b> osdtext.h:47</div></div> <div class="ttc" id="class_c_m_u462_1_1_o_s_d_text_html_a1f29bdf4a5b3fe64e113b1a3b8e1a53d"><div class="ttname"><a href="class_c_m_u462_1_1_o_s_d_text.html#a1f29bdf4a5b3fe64e113b1a3b8e1a53d">CMU462::OSDText::OSDText</a></div><div class="ttdeci">OSDText()</div><div class="ttdoc">Constructor. </div><div class="ttdef"><b>Definition:</b> osdtext.cpp:22</div></div> <div class="ttc" id="class_c_m_u462_1_1_color_html"><div class="ttname"><a href="class_c_m_u462_1_1_color.html">CMU462::Color</a></div><div class="ttdoc">Encodes a color via additive red, green, and blue chanel values. </div><div class="ttdef"><b>Definition:</b> color.h:13</div></div> </div><!-- fragment --></div><!-- contents --> <!-- start footer part --> <hr class="footer"/><address class="footer"><small> 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