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21 <div id="projectname">libsigc++
22  <span id="projectnumber">2.9.2</span>
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42 <div class="headertitle">
43 <div class="title">Graph Legend</div> </div>
45 <div class="contents">
46 <p>This page explains how to interpret the graphs that are generated by doxygen.</p>
47 <p>Consider the following example: </p><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> /*! Invisible class because of truncation */</div>
48 <div class="line"><a name="l00002"></a><span class="lineno"> 2</span> class Invisible { };</div>
49 <div class="line"><a name="l00003"></a><span class="lineno"> 3</span> </div>
50 <div class="line"><a name="l00004"></a><span class="lineno"> 4</span> /*! Truncated class, inheritance relation is hidden */</div>
51 <div class="line"><a name="l00005"></a><span class="lineno"> 5</span> class Truncated : public Invisible { };</div>
52 <div class="line"><a name="l00006"></a><span class="lineno"> 6</span> </div>
53 <div class="line"><a name="l00007"></a><span class="lineno"> 7</span> /* Class not documented with doxygen comments */</div>
54 <div class="line"><a name="l00008"></a><span class="lineno"> 8</span> class Undocumented { };</div>
55 <div class="line"><a name="l00009"></a><span class="lineno"> 9</span> </div>
56 <div class="line"><a name="l00010"></a><span class="lineno"> 10</span> /*! Class that is inherited using public inheritance */</div>
57 <div class="line"><a name="l00011"></a><span class="lineno"> 11</span> class PublicBase : public Truncated { };</div>
58 <div class="line"><a name="l00012"></a><span class="lineno"> 12</span> </div>
59 <div class="line"><a name="l00013"></a><span class="lineno"> 13</span> /*! A template class */</div>
60 <div class="line"><a name="l00014"></a><span class="lineno"> 14</span> template<class T> class Templ { };</div>
61 <div class="line"><a name="l00015"></a><span class="lineno"> 15</span> </div>
62 <div class="line"><a name="l00016"></a><span class="lineno"> 16</span> /*! Class that is inherited using protected inheritance */</div>
63 <div class="line"><a name="l00017"></a><span class="lineno"> 17</span> class ProtectedBase { };</div>
64 <div class="line"><a name="l00018"></a><span class="lineno"> 18</span> </div>
65 <div class="line"><a name="l00019"></a><span class="lineno"> 19</span> /*! Class that is inherited using private inheritance */</div>
66 <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> class PrivateBase { };</div>
67 <div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div>
68 <div class="line"><a name="l00022"></a><span class="lineno"> 22</span> /*! Class that is used by the Inherited class */</div>
69 <div class="line"><a name="l00023"></a><span class="lineno"> 23</span> class Used { };</div>
70 <div class="line"><a name="l00024"></a><span class="lineno"> 24</span> </div>
71 <div class="line"><a name="l00025"></a><span class="lineno"> 25</span> /*! Super class that inherits a number of other classes */</div>
72 <div class="line"><a name="l00026"></a><span class="lineno"> 26</span> class Inherited : public PublicBase,</div>
73 <div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  protected ProtectedBase,</div>
74 <div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  private PrivateBase,</div>
75 <div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  public Undocumented,</div>
76 <div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  public Templ<int></div>
77 <div class="line"><a name="l00031"></a><span class="lineno"> 31</span> {</div>
78 <div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  private:</div>
79 <div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  Used *m_usedClass;</div>
80 <div class="line"><a name="l00034"></a><span class="lineno"> 34</span> };</div>
81 </div><!-- fragment --><p> This will result in the following graph:</p>
82 <center><div class="image">
83 <img src="graph_legend.png" />
85 </center><p>The boxes in the above graph have the following meaning: </p>
88 A filled gray box represents the struct or class for which the graph is generated. </li>
90 A box with a black border denotes a documented struct or class. </li>
92 A box with a grey border denotes an undocumented struct or class. </li>
94 A box with a red border denotes a documented struct or class forwhich not all inheritance/containment relations are shown. A graph is truncated if it does not fit within the specified boundaries. </li>
96 <p>The arrows have the following meaning: </p>
99 A dark blue arrow is used to visualize a public inheritance relation between two classes. </li>
101 A dark green arrow is used for protected inheritance. </li>
103 A dark red arrow is used for private inheritance. </li>
105 A purple dashed arrow is used if a class is contained or used by another class. The arrow is labeled with the variable(s) through which the pointed class or struct is accessible. </li>
107 A yellow dashed arrow denotes a relation between a template instance and the template class it was instantiated from. The arrow is labeled with the template parameters of the instance. </li>
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