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  16 <h1>qopencamwidget.h</h1><a href="qopencamwidget_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
  17 <a name="l00002"></a>00002 <span class="comment"> This file is one part of two, that together make</span>
  18 <a name="l00003"></a>00003 <span class="comment"> QOpenCamWidget, a Qt 4 widget that displays video input </span>
  19 <a name="l00004"></a>00004 <span class="comment"> from a webcam, along with an optional snapshot button.</span>
  20 <a name="l00005"></a>00005 <span class="comment"></span>
  21 <a name="l00006"></a>00006 <span class="comment"> Copyright (C) 2009 Jon Langseth</span>
  22 <a name="l00007"></a>00007 <span class="comment"></span>
  23 <a name="l00008"></a>00008 <span class="comment"> This program is free software; you can redistribute it and/or</span>
  24 <a name="l00009"></a>00009 <span class="comment"> modify it under the terms of the GNU General Public License</span>
  25 <a name="l00010"></a>00010 <span class="comment"> as published by the Free Software Foundation in its version 2</span>
  26 <a name="l00011"></a>00011 <span class="comment"> of the License.</span>
  27 <a name="l00012"></a>00012 <span class="comment"></span>
  28 <a name="l00013"></a>00013 <span class="comment"> This program is distributed in the hope that it will be useful,</span>
  29 <a name="l00014"></a>00014 <span class="comment"> but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
  30 <a name="l00015"></a>00015 <span class="comment"> MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the</span>
  31 <a name="l00016"></a>00016 <span class="comment"> GNU General Public License for more details.</span>
  32 <a name="l00017"></a>00017 <span class="comment"></span>
  33 <a name="l00018"></a>00018 <span class="comment"> You should have received a copy of the GNU General Public License</span>
  34 <a name="l00019"></a>00019 <span class="comment"> along with this program; if not, write to the Free Software</span>
  35 <a name="l00020"></a>00020 <span class="comment"> Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.</span>
  36 <a name="l00021"></a>00021 <span class="comment"> */</span>
  37 <a name="l00022"></a>00022
  38 <a name="l00023"></a>00023 <span class="preprocessor">#ifndef QOPENCVWIDGET_H</span>
  39 <a name="l00024"></a>00024 <span class="preprocessor"></span><span class="preprocessor">#define QOPENCVWIDGET_H</span>
  40 <a name="l00025"></a>00025 <span class="preprocessor"></span><span class="preprocessor">#include &lt;QtGui&gt;</span>
  41 <a name="l00026"></a>00026 <span class="preprocessor">#include &lt;opencv/cv.h&gt;</span>
  42 <a name="l00027"></a>00027 <span class="preprocessor">#include &lt;opencv/highgui.h&gt;</span>
  43 <a name="l00028"></a>00028
  44 <a name="l00029"></a><a class="code" href="classQOpenCamWidget.html">00029</a> <span class="keyword">class </span><a class="code" href="classQOpenCamWidget.html">QOpenCamWidget</a>
  45 <a name="l00030"></a>00030         : <span class="keyword">public</span> QWidget
  46 <a name="l00031"></a>00031 {
  47 <a name="l00032"></a>00032         Q_OBJECT
  48 <a name="l00033"></a>00033
  49 <a name="l00034"></a>00034         <span class="keyword">private</span>:
  50 <a name="l00035"></a><a class="code" href="classQOpenCamWidget.html#fde0c9d47e2ea44f2aeea499fd570368">00035</a>                 CvCapture   *<a class="code" href="classQOpenCamWidget.html#fde0c9d47e2ea44f2aeea499fd570368">capture</a>;
  51 <a name="l00036"></a><a class="code" href="classQOpenCamWidget.html#2e70551b39fd2bd15fc99ca4fa12107f">00036</a>                 QTimer      *<a class="code" href="classQOpenCamWidget.html#2e70551b39fd2bd15fc99ca4fa12107f">frametimer</a>;
  52 <a name="l00037"></a><a class="code" href="classQOpenCamWidget.html#92dab283a477c1b8a6d6d5470d5ef94d">00037</a>                 QImage      *<a class="code" href="classQOpenCamWidget.html#92dab283a477c1b8a6d6d5470d5ef94d">nextFrame</a>;
  53 <a name="l00038"></a>00038                 <span class="comment">//QImage      *snapshot;</span>
  54 <a name="l00039"></a><a class="code" href="classQOpenCamWidget.html#7ac719f26d5f4a0a80ac6e4ffd4fe46d">00039</a>                 QLabel      *<a class="code" href="classQOpenCamWidget.html#7ac719f26d5f4a0a80ac6e4ffd4fe46d">canvas</a>;
  55 <a name="l00040"></a><a class="code" href="classQOpenCamWidget.html#e91d147fdd20819b56ebd7861d7ab44e">00040</a>                 QVBoxLayout *<a class="code" href="classQOpenCamWidget.html#e91d147fdd20819b56ebd7861d7ab44e">layout</a>;
  56 <a name="l00041"></a><a class="code" href="classQOpenCamWidget.html#a0aaf9bfc43d01979a7af03741620624">00041</a>                 QPushButton *<a class="code" href="classQOpenCamWidget.html#a0aaf9bfc43d01979a7af03741620624">trigger</a>;
  57 <a name="l00042"></a><a class="code" href="classQOpenCamWidget.html#1718e4971977520cfe642daa78e1997e">00042</a>                 <span class="keywordtype">bool</span> <a class="code" href="classQOpenCamWidget.html#1718e4971977520cfe642daa78e1997e">trigger_active</a>;
  58 <a name="l00043"></a>00043
  59 <a name="l00044"></a>00044         <span class="keyword">public</span>:
  60 <a name="l00045"></a>00045                 <span class="comment">// Defaults, standard elements ;)</span>
  61 <a name="l00046"></a>00046                 <a class="code" href="classQOpenCamWidget.html#5835e06a54f1b09b4fd157d88dc72b6e" title="Consctructs a QWidget based widget for displaying video coming from an OpenCV capture...">QOpenCamWidget</a>(QWidget *parent = 0);
  62 <a name="l00047"></a>00047                 <a class="code" href="classQOpenCamWidget.html#b0ad4890d7d638354289e074a6f71a3f">~QOpenCamWidget</a>(<span class="keywordtype">void</span>);
  63 <a name="l00048"></a>00048
  64 <a name="l00049"></a>00049                 <span class="comment">// Overides, reimplementation of abstract</span>
  65 <a name="l00050"></a>00050                 <span class="keywordtype">void</span> <a class="code" href="classQOpenCamWidget.html#c6186d1e510b5c8635b2d3bf5d94def6" title="A paint event is a request to repaint all or part of a widget.">paintEvent</a> ( QPaintEvent * event );
  66 <a name="l00051"></a>00051
  67 <a name="l00052"></a>00052                 <span class="comment">// Public methods specific to this class</span>
  68 <a name="l00053"></a>00053                 <span class="keywordtype">void</span> <a class="code" href="classQOpenCamWidget.html#8f885a8bb88870cd19cfc9eb4e02e2ce" title="Changes the visibility of the optional built-in &amp;quot;Take snapshot&amp;quot; button...">setSnapshotVisible</a>( <span class="keywordtype">bool</span> visible );
  69 <a name="l00054"></a>00054                 <span class="keywordtype">bool</span> <a class="code" href="classQOpenCamWidget.html#23574314cbd7a74bc6f32a640041d55a" title="Grabs an OpenCV video capture source.">grabCapture</a>(<span class="keywordtype">int</span> source);
  70 <a name="l00055"></a>00055                 <span class="keywordtype">void</span> <a class="code" href="classQOpenCamWidget.html#b378daa447e8d9b94e1c7c8c6853b880" title="Starts up grabbing of video frames.">startCapture</a>(<span class="keywordtype">void</span>);
  71 <a name="l00056"></a>00056                 QImage* <a class="code" href="classQOpenCamWidget.html#aba8721f46b41d76326e048e3c876f1d" title="Converts from the OpenCV IplImage data structure to a QImage.">Ipl2QImage</a>(<span class="keyword">const</span> IplImage *img);
  72 <a name="l00057"></a>00057
  73 <a name="l00058"></a>00058         <span class="keyword">public</span> slots:
  74 <a name="l00059"></a>00059                 <span class="keywordtype">void</span> <a class="code" href="classQOpenCamWidget.html#27c30cec9a8d44c1802e4218bea7bdb4" title="Grabs a frame and causes an update() when triggered.">grabFrame</a>(<span class="keywordtype">void</span>);
  75 <a name="l00060"></a>00060                 <span class="keywordtype">void</span> <a class="code" href="classQOpenCamWidget.html#82540c90d3efa85631f13af3a60fa94b" title="Trigger this slot to save a frame from the widget.">startSnap</a>();
  76 <a name="l00061"></a>00061         signals:
  77 <a name="l00062"></a>00062                 <span class="keywordtype">void</span> <a class="code" href="classQOpenCamWidget.html#d410be92ce25ff591726ba255070d09e">imageReady</a>(QImage snapshot);
  78 <a name="l00063"></a>00063 };
  79 <a name="l00064"></a>00064
  80 <a name="l00065"></a>00065 <span class="preprocessor">#endif</span>
  81 <a name="l00066"></a>00066 <span class="preprocessor"></span>
  82 </pre></div></div>
  83 <hr size="1"><address style="text-align: right;"><small>Generated on Thu Jun 11 01:49:57 2009 for QOpenCamWidget by&nbsp;
  84 <a href="http://www.doxygen.org/index.html">
  85 <img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.6 </small></address>
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