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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>LCOV - .lcov.total - src/deselectabletreeview.h</title>
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<tr><td class="title">LCOV - code coverage report</td></tr>
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<td width="10%" class="headerItem">Current view:</td>
<td width="35%" class="headerValue"><a href="../index.html">top level</a> - <a href="index.html">src</a> - deselectabletreeview.h<span style="font-size: 80%;"> (source / <a href="deselectabletreeview.h.func-sort-c.html">functions</a>)</span></td>
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<td width="10%" class="headerCovTableHead">Hit</td>
<td width="10%" class="headerCovTableHead">Total</td>
<td width="15%" class="headerCovTableHead">Coverage</td>
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<td class="headerItem">Test:</td>
<td class="headerValue">.lcov.total</td>
<td></td>
<td class="headerItem">Lines:</td>
<td class="headerCovTableEntry">0</td>
<td class="headerCovTableEntry">31</td>
<td class="headerCovTableEntryLo">0.0 %</td>
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<td class="headerItem">Date:</td>
<td class="headerValue">2017-03-14 11:46:08</td>
<td></td>
<td class="headerItem">Functions:</td>
<td class="headerCovTableEntry">0</td>
<td class="headerCovTableEntry">10</td>
<td class="headerCovTableEntryLo">0.0 %</td>
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<pre class="sourceHeading"> Line data Source code</pre>
<pre class="source">
<a name="1"><span class="lineNum"> 1 </span> : #ifndef DESELECTABLETREEVIEW_H</a>
<span class="lineNum"> 2 </span> : #define DESELECTABLETREEVIEW_H
<span class="lineNum"> 3 </span> : #include "QMouseEvent"
<span class="lineNum"> 4 </span> : #include "QTreeView"
<span class="lineNum"> 5 </span> : #include "mainwindow.h"
<span class="lineNum"> 6 </span> : #include <QTime>
<span class="lineNum"> 7 </span> :
<span class="lineNum"> 8 </span> : /**
<span class="lineNum"> 9 </span> : * @brief The DeselectableTreeView class
<span class="lineNum"> 10 </span> : * loosly based on http://stackoverflow.com/questions/2761284/
<span class="lineNum"> 11 </span> : * thanks to Yassir Ennazk
<span class="lineNum"> 12 </span> : */
<span class="lineNum"> 13 </span> : class DeselectableTreeView : public QTreeView {
<span class="lineNum"> 14 </span> : Q_OBJECT
<span class="lineNum"> 15 </span> :
<span class="lineNum"> 16 </span> : public:
<span class="lineNum"> 17 </span> : /**
<span class="lineNum"> 18 </span> : * @brief DeselectableTreeView standard constructor
<a name="19"><span class="lineNum"> 19 </span> : * @param parent</a>
<span class="lineNum"> 20 </span> : */
<span class="lineNum"> 21 </span><span class="lineNoCov"> 0 : DeselectableTreeView(QWidget *parent) : QTreeView(parent) {}</span>
<span class="lineNum"> 22 </span> : /**
<a name="23"><span class="lineNum"> 23 </span> : * @brief ~DeselectableTreeView standard destructor</a>
<span class="lineNum"> 24 </span> : */
<span class="lineNum"> 25 </span><span class="lineNoCov"> 0 : virtual ~DeselectableTreeView() {}</span>
<span class="lineNum"> 26 </span> :
<span class="lineNum"> 27 </span> : signals:
<span class="lineNum"> 28 </span> : /**
<span class="lineNum"> 29 </span> : * @brief emptyClicked event
<span class="lineNum"> 30 </span> : */
<span class="lineNum"> 31 </span> : void emptyClicked();
<span class="lineNum"> 32 </span> :
<span class="lineNum"> 33 </span> : private:
<span class="lineNum"> 34 </span><span class="lineNoCov"> 0 : bool doubleClickHappened = false;</span>
<span class="lineNum"> 35 </span><span class="lineNoCov"> 0 : bool clickSelected = false;</span>
<span class="lineNum"> 36 </span> :
<span class="lineNum"> 37 </span> : /**
<span class="lineNum"> 38 </span> : * @brief mousePressEvent registers if the field was pre-selected
<a name="39"><span class="lineNum"> 39 </span> : * @param event</a>
<span class="lineNum"> 40 </span> : */
<span class="lineNum"> 41 </span><span class="lineNoCov"> 0 : virtual void mousePressEvent(QMouseEvent *event) {</span>
<span class="lineNum"> 42 </span><span class="lineNoCov"> 0 : clickSelected = selectionModel()->isSelected(indexAt(event->pos()));</span>
<span class="lineNum"> 43 </span><span class="lineNoCov"> 0 : QTreeView::mousePressEvent(event);</span>
<span class="lineNum"> 44 </span><span class="lineNoCov"> 0 : }</span>
<span class="lineNum"> 45 </span> :
<span class="lineNum"> 46 </span> : /**
<span class="lineNum"> 47 </span> : * @brief mouseReleaseEvent now deselects on click on empty space
<a name="48"><span class="lineNum"> 48 </span> : * @param event</a>
<span class="lineNum"> 49 </span> : */
<span class="lineNum"> 50 </span><span class="lineNoCov"> 0 : void mouseReleaseEvent(QMouseEvent *event) {</span>
<span class="lineNum"> 51 </span><span class="lineNoCov"> 0 : doubleClickHappened = false;</span>
<span class="lineNum"> 52 </span> : // The timer is to distinguish between single and double click
<span class="lineNum"> 53 </span><span class="lineNoCov"> 0 : QTime dieTime = QTime::currentTime().addMSecs(200);</span>
<span class="lineNum"> 54 </span><span class="lineNoCov"> 0 : while (QTime::currentTime() < dieTime)</span>
<span class="lineNum"> 55 </span><span class="lineNoCov"> 0 : QCoreApplication::processEvents(QEventLoop::AllEvents, 100);</span>
<span class="lineNum"> 56 </span> : // could this be done nicer?
<span class="lineNum"> 57 </span><span class="lineNoCov"> 0 : if (!doubleClickHappened && clickSelected) {</span>
<span class="lineNum"> 58 </span><span class="lineNoCov"> 0 : QModelIndex item = indexAt(event->pos());</span>
<span class="lineNum"> 59 </span><span class="lineNoCov"> 0 : bool selected = selectionModel()->isSelected(indexAt(event->pos()));</span>
<span class="lineNum"> 60 </span><span class="lineNoCov"> 0 : if ((item.row() == -1 && item.column() == -1) || selected) {</span>
<span class="lineNum"> 61 </span><span class="lineNoCov"> 0 : clearSelection();</span>
<span class="lineNum"> 62 </span><span class="lineNoCov"> 0 : const QModelIndex index;</span>
<span class="lineNum"> 63 </span><span class="lineNoCov"> 0 : selectionModel()->setCurrentIndex(index, QItemSelectionModel::Select);</span>
<span class="lineNum"> 64 </span><span class="lineNoCov"> 0 : emit emptyClicked();</span>
<span class="lineNum"> 65 </span><span class="lineNoCov"> 0 : } else {</span>
<span class="lineNum"> 66 </span><span class="lineNoCov"> 0 : QTreeView::mouseReleaseEvent(event);</span>
<span class="lineNum"> 67 </span> : }
<span class="lineNum"> 68 </span><span class="lineNoCov"> 0 : } else {</span>
<span class="lineNum"> 69 </span><span class="lineNoCov"> 0 : QTreeView::mouseReleaseEvent(event);</span>
<span class="lineNum"> 70 </span> : }
<span class="lineNum"> 71 </span><span class="lineNoCov"> 0 : clickSelected = false;</span>
<span class="lineNum"> 72 </span><span class="lineNoCov"> 0 : }</span>
<span class="lineNum"> 73 </span> :
<span class="lineNum"> 74 </span> : /**
<span class="lineNum"> 75 </span> : * @brief mouseDoubleClickEvent
<a name="76"><span class="lineNum"> 76 </span> : * @param event</a>
<span class="lineNum"> 77 </span> : */
<span class="lineNum"> 78 </span><span class="lineNoCov"> 0 : void mouseDoubleClickEvent(QMouseEvent *event) {</span>
<span class="lineNum"> 79 </span><span class="lineNoCov"> 0 : doubleClickHappened = true;</span>
<span class="lineNum"> 80 </span><span class="lineNoCov"> 0 : QTreeView::mouseDoubleClickEvent(event);</span>
<span class="lineNum"> 81 </span><span class="lineNoCov"> 0 : }</span>
<span class="lineNum"> 82 </span> : };
<span class="lineNum"> 83 </span> :
<span class="lineNum"> 84 </span> : #endif // DESELECTABLETREEVIEW_H
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