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<li class="navelem"><a class="el" href="dir_b13547ffa933658222e03ef869b68c96.html">Tutorial</a></li> </ul>
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<div class="title">TutorialDlg.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 "Logger.h"</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#include "MainWindow.h"</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#include <QGraphicsRectItem></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 <QGraphicsView></span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include <QVBoxLayout></span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include "TutorialDlg.h"</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include "TutorialStateContext.h"</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> <span class="keyword">const</span> <span class="keywordtype">int</span> SCENE_WIDTH = 550;</div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="keyword">const</span> <span class="keywordtype">int</span> SCENE_HEIGHT = 450;</div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div><div class="line"><a name="l00020"></a><span class="lineno"><a class="line" href="classTutorialDlg.html#a832d0e622c5c1ca6f3c7901125a34f7f"> 20</a></span> <a class="code" href="classTutorialDlg.html#a832d0e622c5c1ca6f3c7901125a34f7f">TutorialDlg::TutorialDlg</a> (<a class="code" href="classMainWindow.html">MainWindow</a> *mainWindow) :</div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  QDialog (mainWindow)</div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> {</div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  setWindowTitle (<span class="stringliteral">"Engauge Digitizer Tutorial"</span>);</div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> </div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  <span class="comment">// Dialog size is determined by scene size</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  QVBoxLayout *layout = <span class="keyword">new</span> QVBoxLayout;</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  layout->setSizeConstraint (QLayout::SetFixedSize);</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  setLayout (layout);</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>  createSceneAndView();</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  createContext();</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> </div><div class="line"><a name="l00034"></a><span class="lineno"><a class="line" href="classTutorialDlg.html#aba5e25cf0c95dd21b3ab85211aa02eae"> 34</a></span> QSize <a class="code" href="classTutorialDlg.html#aba5e25cf0c95dd21b3ab85211aa02eae">TutorialDlg::backgroundSize</a> ()<span class="keyword"> const</span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="keyword"></span>{</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keywordflow">return</span> QSize (SCENE_WIDTH,</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  SCENE_HEIGHT);</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="keywordtype">void</span> TutorialDlg::createContext ()</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>  m_context = <span class="keyword">new</span> <a class="code" href="classTutorialStateContext.html">TutorialStateContext</a>(*<span class="keyword">this</span>);</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> }</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> <span class="keywordtype">void</span> TutorialDlg::createSceneAndView ()</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>  LOG4CPP_INFO_S ((*mainCat)) << <span class="stringliteral">"TutorialDlg::createSceneAndView"</span>;</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> </div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  m_scene = <span class="keyword">new</span> QGraphicsScene (<span class="keyword">this</span>);</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> </div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  m_view = <span class="keyword">new</span> QGraphicsView (m_scene, <span class="keyword">this</span>);</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  m_view->setMouseTracking (<span class="keyword">true</span>);</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  layout ()->addWidget(m_view);</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> </div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="comment">// Spacer is used to ensure view is the desired size. Directly setting the size of the view</span></div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="comment">// is ineffective since the view then get resized to the smallest rectangle fitting the added items</span></div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  QGraphicsRectItem *spacer = <span class="keyword">new</span> QGraphicsRectItem (0,</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  0,</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <a class="code" href="classTutorialDlg.html#aba5e25cf0c95dd21b3ab85211aa02eae">backgroundSize</a>().width (),</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <a class="code" href="classTutorialDlg.html#aba5e25cf0c95dd21b3ab85211aa02eae">backgroundSize</a>().height ());</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  spacer->setBrush (QBrush (Qt::NoBrush));</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  spacer->setPen (QPen (Qt::NoPen));</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  spacer->setZValue(-1); <span class="comment">// Put behind everything else at the default z of zero</span></div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  m_scene->addItem (spacer);</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span> }</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span> </div><div class="line"><a name="l00066"></a><span class="lineno"><a class="line" href="classTutorialDlg.html#a99d21d35535c19b944c65caeaec7e919"> 66</a></span> QGraphicsScene &<a class="code" href="classTutorialDlg.html#a99d21d35535c19b944c65caeaec7e919">TutorialDlg::scene</a> ()</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> {</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  ENGAUGE_CHECK_PTR (m_scene);</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span> </div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keywordflow">return</span> *m_scene;</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span> }</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> </div><div class="line"><a name="l00073"></a><span class="lineno"><a class="line" href="classTutorialDlg.html#a5e42c2207ff0933430954574e5e9d461"> 73</a></span> QGraphicsView &<a class="code" href="classTutorialDlg.html#a5e42c2207ff0933430954574e5e9d461">TutorialDlg::view</a> ()</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> {</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  ENGAUGE_CHECK_PTR (m_view);</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span> </div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keywordflow">return</span> *m_view;</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span> }</div><div class="ttc" id="classTutorialDlg_html_a832d0e622c5c1ca6f3c7901125a34f7f"><div class="ttname"><a href="classTutorialDlg.html#a832d0e622c5c1ca6f3c7901125a34f7f">TutorialDlg::TutorialDlg</a></div><div class="ttdeci">TutorialDlg(MainWindow *mainWindow)</div><div class="ttdoc">Single constructor. </div><div class="ttdef"><b>Definition:</b> <a href="TutorialDlg_8cpp_source.html#l00020">TutorialDlg.cpp:20</a></div></div>
<div class="ttc" id="classTutorialDlg_html_a99d21d35535c19b944c65caeaec7e919"><div class="ttname"><a href="classTutorialDlg.html#a99d21d35535c19b944c65caeaec7e919">TutorialDlg::scene</a></div><div class="ttdeci">QGraphicsScene & scene()</div><div class="ttdoc">Single scene the covers the entire tutorial dialog. </div><div class="ttdef"><b>Definition:</b> <a href="TutorialDlg_8cpp_source.html#l00066">TutorialDlg.cpp:66</a></div></div>
<div class="ttc" id="classTutorialDlg_html_aba5e25cf0c95dd21b3ab85211aa02eae"><div class="ttname"><a href="classTutorialDlg.html#aba5e25cf0c95dd21b3ab85211aa02eae">TutorialDlg::backgroundSize</a></div><div class="ttdeci">QSize backgroundSize() const</div><div class="ttdoc">Make geometry available for layout. </div><div class="ttdef"><b>Definition:</b> <a href="TutorialDlg_8cpp_source.html#l00034">TutorialDlg.cpp:34</a></div></div>
<div class="ttc" id="classTutorialStateContext_html"><div class="ttname"><a href="classTutorialStateContext.html">TutorialStateContext</a></div><div class="ttdoc">Context class for tutorial state machine. </div><div class="ttdef"><b>Definition:</b> <a href="TutorialStateContext_8h_source.html#l00020">TutorialStateContext.h:20</a></div></div>
<div class="ttc" id="classTutorialDlg_html_a5e42c2207ff0933430954574e5e9d461"><div class="ttname"><a href="classTutorialDlg.html#a5e42c2207ff0933430954574e5e9d461">TutorialDlg::view</a></div><div class="ttdeci">QGraphicsView & view()</div><div class="ttdoc">Single view that displays the single scene. </div><div class="ttdef"><b>Definition:</b> <a href="TutorialDlg_8cpp_source.html#l00073">TutorialDlg.cpp:73</a></div></div>
<div class="ttc" id="classMainWindow_html"><div class="ttname"><a href="classMainWindow.html">MainWindow</a></div><div class="ttdoc">Main window consisting of menu, graphics scene, status bar and optional toolbars as a Single Document...</div><div class="ttdef"><b>Definition:</b> <a href="MainWindow_8h_source.html#l00086">MainWindow.h:86</a></div></div>
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