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<li class="navelem"><a class="el" href="dir_b29de073dfc2204bac62d41e03b5d1ca.html">Grid</a></li> </ul>
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<div class="title">GridLine.cpp</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/******************************************************************************************************</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * (C) 2014 markummitchell@github.com. This file is part of Engauge Digitizer, which is released *</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * under GNU General Public License version 2 (GPLv2) or (at your option) any later version. See file *</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * LICENSE or go to gnu.org/licenses for details. Distribution requires prior written permission. *</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> ******************************************************************************************************/</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 "EngaugeAssert.h"</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#include "GridLine.h"</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#include <qdebug.h></span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#include <QGraphicsItem></span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include <QGraphicsScene></span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include <QPen></span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> </div><div class="line"><a name="l00014"></a><span class="lineno"><a class="line" href="classGridLine.html#afa62fa9b14ef05ab861216e4d9653f19"> 14</a></span> <a class="code" href="classGridLine.html#afa62fa9b14ef05ab861216e4d9653f19">GridLine::GridLine</a> ()</div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> {</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> </div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> GridLine::~GridLine ()</div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> {</div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span>  <span class="comment">// Crash here means QGraphicsScene::clear was called, which is entirely unnecessary</span></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="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < m_segments.count(); i++) {</div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  QGraphicsItem *item = m_segments [i];</div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  <span class="keyword">delete</span> item;</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> </div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  m_segments.clear ();</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</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"><a class="line" href="classGridLine.html#a80e4a93b74e9589b0ac093e09e5491cb"> 30</a></span> <a class="code" href="classGridLine.html#afa62fa9b14ef05ab861216e4d9653f19">GridLine::GridLine</a> (<span class="keyword">const</span> <a class="code" href="classGridLine.html">GridLine</a> & <span class="comment">/* other */</span>)</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>  ENGAUGE_ASSERT (<span class="keyword">false</span>);</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> </div><div class="line"><a name="l00035"></a><span class="lineno"><a class="line" href="classGridLine.html#a3a318c804f0746e0416b90b954a06fed"> 35</a></span> <a class="code" href="classGridLine.html">GridLine</a> &<a class="code" href="classGridLine.html#a3a318c804f0746e0416b90b954a06fed">GridLine::operator= </a>(<a class="code" href="classGridLine.html">GridLine</a> & <span class="comment">/* other */</span>)</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> {</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  ENGAUGE_ASSERT (<span class="keyword">false</span>);</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>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> }</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div><div class="line"><a name="l00042"></a><span class="lineno"><a class="line" href="classGridLine.html#a4792f731bd37c3bc2312318b7bae3533"> 42</a></span> <span class="keywordtype">void</span> <a class="code" href="classGridLine.html#a4792f731bd37c3bc2312318b7bae3533">GridLine::add</a> (QGraphicsItem *item)</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> {</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  m_segments.push_back (item);</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> }</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div><div class="line"><a name="l00047"></a><span class="lineno"><a class="line" href="classGridLine.html#a325346597831c4ddd8027e9f8d738f0c"> 47</a></span> <span class="keywordtype">void</span> <a class="code" href="classGridLine.html#a325346597831c4ddd8027e9f8d738f0c">GridLine::setPen</a> (<span class="keyword">const</span> QPen &pen)</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> {</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < m_segments.count(); i++) {</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  QGraphicsItem *item = m_segments [i];</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keywordflow">if</span> (item != 0) {</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">// Downcast since QGraphicsItem does not have a pen</span></div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  QGraphicsLineItem *itemLine = <span class="keyword">dynamic_cast<</span>QGraphicsLineItem*<span class="keyword">></span> (item);</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  QGraphicsEllipseItem *itemArc = <span class="keyword">dynamic_cast<</span>QGraphicsEllipseItem*<span class="keyword">></span> (item);</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keywordflow">if</span> (itemLine != 0) {</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  itemLine->setPen (pen);</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (itemArc != 0) {</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  itemArc->setPen (pen);</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  }</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="l00063"></a><span class="lineno"> 63</span> }</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span> </div><div class="line"><a name="l00065"></a><span class="lineno"><a class="line" href="classGridLine.html#a7824b21aedec720f3f00fb47fa0f3c6f"> 65</a></span> <span class="keywordtype">void</span> <a class="code" href="classGridLine.html#a7824b21aedec720f3f00fb47fa0f3c6f">GridLine::setVisible</a> (<span class="keywordtype">bool</span> visible)</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span> {</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < m_segments.count(); i++) {</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  QGraphicsItem *item = m_segments [i];</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  item->setVisible (visible);</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  }</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span> }</div><div class="ttc" id="classGridLine_html_afa62fa9b14ef05ab861216e4d9653f19"><div class="ttname"><a href="classGridLine.html#afa62fa9b14ef05ab861216e4d9653f19">GridLine::GridLine</a></div><div class="ttdeci">GridLine()</div><div class="ttdoc">Default constructor for storage in containers. </div><div class="ttdef"><b>Definition:</b> <a href="GridLine_8cpp_source.html#l00014">GridLine.cpp:14</a></div></div>
<div class="ttc" id="classGridLine_html_a3a318c804f0746e0416b90b954a06fed"><div class="ttname"><a href="classGridLine.html#a3a318c804f0746e0416b90b954a06fed">GridLine::operator=</a></div><div class="ttdeci">GridLine & operator=(GridLine &other)</div><div class="ttdoc">Assignment constructor. This will assert if called since copying of pointer containers is problematic...</div><div class="ttdef"><b>Definition:</b> <a href="GridLine_8cpp_source.html#l00035">GridLine.cpp:35</a></div></div>
<div class="ttc" id="classGridLine_html_a325346597831c4ddd8027e9f8d738f0c"><div class="ttname"><a href="classGridLine.html#a325346597831c4ddd8027e9f8d738f0c">GridLine::setPen</a></div><div class="ttdeci">void setPen(const QPen &pen)</div><div class="ttdoc">Set the pen style. </div><div class="ttdef"><b>Definition:</b> <a href="GridLine_8cpp_source.html#l00047">GridLine.cpp:47</a></div></div>
<div class="ttc" id="classGridLine_html"><div class="ttname"><a href="classGridLine.html">GridLine</a></div><div class="ttdoc">Single grid line drawn a straight or curved line. </div><div class="ttdef"><b>Definition:</b> <a href="GridLine_8h_source.html#l00020">GridLine.h:20</a></div></div>
<div class="ttc" id="classGridLine_html_a7824b21aedec720f3f00fb47fa0f3c6f"><div class="ttname"><a href="classGridLine.html#a7824b21aedec720f3f00fb47fa0f3c6f">GridLine::setVisible</a></div><div class="ttdeci">void setVisible(bool visible)</div><div class="ttdoc">Set each grid line as visible or hidden. </div><div class="ttdef"><b>Definition:</b> <a href="GridLine_8cpp_source.html#l00065">GridLine.cpp:65</a></div></div>
<div class="ttc" id="classGridLine_html_a4792f731bd37c3bc2312318b7bae3533"><div class="ttname"><a href="classGridLine.html#a4792f731bd37c3bc2312318b7bae3533">GridLine::add</a></div><div class="ttdeci">void add(QGraphicsItem *item)</div><div class="ttdoc">Add graphics item which represents one segment of the line. </div><div class="ttdef"><b>Definition:</b> <a href="GridLine_8cpp_source.html#l00042">GridLine.cpp:42</a></div></div>
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