git.defcon.no Git - qopencamwidget/blob - qopencamwidget.h

   1 /*
   2  This file is one part of two, that together make
   3  QOpenCamWidget, a Qt 4 widget that displays video input
   4  from a webcam, along with an optional snapshot button.
   5
   6  Copyright (C) 2009 Jon Langseth
   7
   8  This program is free software; you can redistribute it and/or
   9  modify it under the terms of the GNU General Public License
  10  as published by the Free Software Foundation in its version 2
  11  of the License.
  12
  13  This program is distributed in the hope that it will be useful,
  14  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  GNU General Public License for more details.
  17
  18  You should have received a copy of the GNU General Public License
  19  along with this program; if not, write to the Free Software
  20  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  21  */
  22
  23 #ifndef QOPENCVWIDGET_H
  24 #define QOPENCVWIDGET_H
  25 #include <QtGui>
  26 #include <opencv/cv.h>
  27 #include <opencv/highgui.h>
  28
  29 class QOpenCamWidget
  30         : public QWidget
  31 {
  32         Q_OBJECT
  33
  34         private:
  35                 CvCapture   *capture;
  36                 QTimer      *frametimer;
  37                 QImage      *nextFrame;
  38                 //QImage      *snapshot;
  39                 QLabel      *canvas;
  40                 QVBoxLayout *layout;
  41                 QPushButton *trigger;
  42                 bool trigger_active;
  43
  44         public:
  45                 // Defaults, standard elements ;)
  46                 QOpenCamWidget(QWidget *parent = 0);
  47                 ~QOpenCamWidget(void);
  48
  49                 // Overides, reimplementation of abstract
  50                 void paintEvent ( QPaintEvent * event );
  51
  52                 // Public methods specific to this class
  53                 void setSnapshotVisible( bool visible );
  54                 bool grabCapture(int source);
  55                 void startCapture(void);
  56                 QImage* Ipl2QImage(const IplImage *img);
  57
  58         public slots:
  59                 void grabFrame(void);
  60                 void startSnap();
  61         signals:
  62                 void imageReady(QImage snapshot);
  63 };
  64
  65 #endif
  66