From: 020535 <020535@07accd87-1e0b-0410-939d-c05d8a058e03> Date: Thu, 11 Jun 2009 21:55:04 +0000 (+0000) Subject: Removing the docs from svn. These are generatet using doxygen anyways. X-Git-Url: https://git.defcon.no/?p=qopencamwidget;a=commitdiff_plain;h=a65d4d45c78706c49bd443a392b4c378efbdc3b9 Removing the docs from svn. These are generatet using doxygen anyways. git-svn-id: https://dilbert.hig.no/svn/student/020535/qopencamwidget/trunk@176 07accd87-1e0b-0410-939d-c05d8a058e03 --- diff --git a/doc/html/annotated.html b/doc/html/annotated.html deleted file mode 100644 index 259c2b6..0000000 --- a/doc/html/annotated.html +++ /dev/null @@ -1,33 +0,0 @@ - - -QOpenCamWidget: Class List - - - - - -
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Class List

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QOpenCamWidget
View
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QOpenCamWidget Member List

This is the complete list of members for QOpenCamWidget, including all inherited members.

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canvasQOpenCamWidget [private]
captureQOpenCamWidget [private]
frametimerQOpenCamWidget [private]
grabCapture(int source)QOpenCamWidget
grabFrame(void)QOpenCamWidget [slot]
imageReady(QImage snapshot)QOpenCamWidget [signal]
Ipl2QImage(const IplImage *img)QOpenCamWidget
layoutQOpenCamWidget [private]
nextFrameQOpenCamWidget [private]
paintEvent(QPaintEvent *event)QOpenCamWidget
QOpenCamWidget(QWidget *parent=0)QOpenCamWidget
setSnapshotVisible(bool visible)QOpenCamWidget
startCapture(void)QOpenCamWidget
startSnap()QOpenCamWidget [slot]
triggerQOpenCamWidget [private]
trigger_activeQOpenCamWidget [private]
~QOpenCamWidget(void)QOpenCamWidget

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QOpenCamWidget Class Reference

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Public Slots

void grabFrame (void)
 Grabs a frame and causes an update() when triggered.
void startSnap ()
 Trigger this slot to save a frame from the widget.

Signals

void imageReady (QImage snapshot)

Public Member Functions

 QOpenCamWidget (QWidget *parent=0)
 Consctructs a QWidget based widget for displaying video coming from an OpenCV capture source.
 ~QOpenCamWidget (void)
void paintEvent (QPaintEvent *event)
 A paint event is a request to repaint all or part of a widget.
void setSnapshotVisible (bool visible)
 Changes the visibility of the optional built-in "Take snapshot" button.
bool grabCapture (int source)
 Grabs an OpenCV video capture source.
void startCapture (void)
 Starts up grabbing of video frames.
QImage * Ipl2QImage (const IplImage *img)
 Converts from the OpenCV IplImage data structure to a QImage.

Private Attributes

CvCapture * capture
QTimer * frametimer
QImage * nextFrame
QLabel * canvas
QVBoxLayout * layout
QPushButton * trigger
bool trigger_active
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Detailed Description

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Definition at line 29 of file qopencamwidget.h.

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Constructor & Destructor Documentation

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QOpenCamWidget::QOpenCamWidget (QWidget *  parent = 0  ) 
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-Consctructs a QWidget based widget for displaying video coming from an OpenCV capture source. -

-Including webcam data in a Qt application can be problematic, at least as long as Phonon does not support webcams, and the Phonon GStreamer backend only supports simple pipelines.

-This class solves the complexity of adding a webcam view, by using the cross-platform available OpenCV library.

-Limitations, i.e. reasons to read this code and reimplement, are: saving or streaming video is not really available (unless you do repeated timer-triggered connections to the startSnap slot), the widget size is identical to the video source dimensions (it resizes the wodget using setMinimuSize to the video dimensions, and does not handle resizing to sizes above this dimension.

-A brief summary of how to use this class: 

 QOpenCamWidget *cw = new QOpenCamWidget(this);
- if ( cw->grabCapture(-1) ) {
-   cw->setSnapshotVisible(true);
-   cw->startCapture();
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- connect( cw, SIGNAL(imageReady(QImage)), this, SLOT(saveImage(QImage)));
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*parent The parent widget containing this widget, defaults to NULL.
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Definition at line 60 of file qopencamwidget.cpp.

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References canvas, frametimer, layout, nextFrame, trigger, and trigger_active.

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QOpenCamWidget::~QOpenCamWidget (void   ) 
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Definition at line 88 of file qopencamwidget.cpp.

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References canvas, capture, and trigger.

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Member Function Documentation

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void QOpenCamWidget::paintEvent (QPaintEvent *  event  ) 
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-A paint event is a request to repaint all or part of a widget. -

-It can happen for one of the following reasons:

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-QOpenCamWidget uses the paintEvent to draw each frame onto the screen. The paintEvent itself is regularily triggered by explicit update() calls in QOpenCamWidget::grabFrame(). -

Definition at line 144 of file qopencamwidget.cpp.

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References canvas, and nextFrame.

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void QOpenCamWidget::setSnapshotVisible (bool  visible  ) 
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-Changes the visibility of the optional built-in "Take snapshot" button. -

-The widget contains a push-button that optionally can be displayed. When visible, this button is located at the bottom of the widget, and causes the SLOT QOpenCamWidget::startSnap to be triggered when clicked.

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visible True makes the button display, and trigger, false turns the feature off. False, i.e. no button, is default.
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Definition at line 110 of file qopencamwidget.cpp.

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References layout, startSnap(), trigger, and trigger_active.

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Referenced by View::View().

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bool QOpenCamWidget::grabCapture (int  source  ) 
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-Grabs an OpenCV video capture source. -

-By grabbing a source, it is meant to open the capture source, and have it ready to start streaming/capturing frames. Returns true on success, false on error. The grabCapture is separated from the constructor and/or frame-grabbing, so that you may do the error-checking you really should do before proceeding.

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source The OpenCV capture source enumeration index to open
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Definition at line 183 of file qopencamwidget.cpp.

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References canvas, and capture.

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Referenced by View::View().

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void QOpenCamWidget::startCapture (void   ) 
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-Starts up grabbing of video frames. -

-The actual grabbing and displaying of video frames is performed by a QTimer triggering the SLOT QOpenCamWidget::grabFrame(). startCapture() sets up the timer running this captureFrame loop.

-The SLOT QOpenCamWidget::startSnap() is used to get image frames out from the widget for other uses, like saving or processing. This function relies on the timer created and configured by startCapture(), and as such, this function is the only permitted way to start the actual capture/streaming of video from the source. -

Definition at line 217 of file qopencamwidget.cpp.

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References frametimer, grabFrame(), and trigger.

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Referenced by View::View().

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QImage * QOpenCamWidget::Ipl2QImage (const IplImage *  img  ) 
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-Converts from the OpenCV IplImage data structure to a QImage. -

-OpenCV uses a data strcuture calles IplImage, optimized for computer vision image processing tasks. This code was adapted from kcamwidget.cpp, part of the KDE SVN at playground/multimedia/kcam/kcamwidget.cpp

-In regard that the IplImage can be forced into a format that aligns well with a RBG888-format, the conversion becomes one of the shortes, simples IplImage->QImage I've seen.

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*img The IplImage to be converted to a QImage.
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Definition at line 241 of file qopencamwidget.cpp.

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Referenced by grabFrame().

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void QOpenCamWidget::grabFrame (void   )  [slot]
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-Grabs a frame and causes an update() when triggered. -

-This is the SLOT that actually reads the video source and causes the widget to display live video. Preferably this slot will never be called my any other signal that a timeout() on the frametimer, which is controlled by QOpenCamWidget::startCapture() -

Definition at line 266 of file qopencamwidget.cpp.

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References capture, Ipl2QImage(), and nextFrame.

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Referenced by startCapture().

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void QOpenCamWidget::startSnap (void   )  [slot]
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-Trigger this slot to save a frame from the widget. -

-When this slot is triggered, the widgets capture loop is temporarily stopped, and the last displayed frame is "captured", and made available through the emitting of the class imageReady SIGNAL.

-With the "Take snapshot" button visible (setSnapshotVisible(true)), this SLOT is triggered when the user clicks on the trigger button. If you do not wish to use the internal trigger button, you will have to add a different mechanism to trigger this SLOT.

-It is possible, though I would not recommend, to use repeated triggering of this slot to do repeated frame-capture, and thus make a form of "Animation" or "Video" capture. -

Definition at line 306 of file qopencamwidget.cpp.

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References frametimer, imageReady(), and nextFrame.

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Referenced by setSnapshotVisible().

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void QOpenCamWidget::imageReady (QImage  snapshot  )  [signal]
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Referenced by startSnap().

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Member Data Documentation

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CvCapture* QOpenCamWidget::capture [private]
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Definition at line 35 of file qopencamwidget.h.

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Referenced by grabCapture(), grabFrame(), and ~QOpenCamWidget().

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QTimer* QOpenCamWidget::frametimer [private]
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Definition at line 36 of file qopencamwidget.h.

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Referenced by QOpenCamWidget(), startCapture(), and startSnap().

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QImage* QOpenCamWidget::nextFrame [private]
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Definition at line 37 of file qopencamwidget.h.

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Referenced by grabFrame(), paintEvent(), QOpenCamWidget(), and startSnap().

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QLabel* QOpenCamWidget::canvas [private]
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Definition at line 39 of file qopencamwidget.h.

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Referenced by grabCapture(), paintEvent(), QOpenCamWidget(), and ~QOpenCamWidget().

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Definition at line 40 of file qopencamwidget.h.

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Referenced by QOpenCamWidget(), and setSnapshotVisible().

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QPushButton* QOpenCamWidget::trigger [private]
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Definition at line 41 of file qopencamwidget.h.

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Referenced by QOpenCamWidget(), setSnapshotVisible(), startCapture(), and ~QOpenCamWidget().

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bool QOpenCamWidget::trigger_active [private]
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Definition at line 42 of file qopencamwidget.h.

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Referenced by QOpenCamWidget(), and setSnapshotVisible().

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The documentation for this class was generated from the following files: -
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Generated on Thu Jun 11 01:49:57 2009 for QOpenCamWidget by  - -doxygen 1.5.6
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View Member List

This is the complete list of members for View, including all inherited members.

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saveImage(QImage image)View [slot]
View(QWidget *parent=0)View
~View(void)View

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View Class Reference

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-List of all members. - - - - - - - - - -

Public Slots

void saveImage (QImage image)

Public Member Functions

 View (QWidget *parent=0)
 ~View (void)
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Detailed Description

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Definition at line 5 of file view.h.

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Constructor & Destructor Documentation

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View::View (QWidget *  parent = 0  ) 
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Definition at line 32 of file view.cpp.

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References QOpenCamWidget::grabCapture(), saveImage(), QOpenCamWidget::setSnapshotVisible(), and QOpenCamWidget::startCapture().

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Definition at line 74 of file view.cpp.

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Member Function Documentation

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Definition at line 78 of file view.cpp.

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Referenced by View().

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The documentation for this class was generated from the following files: -
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File List

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main.cpp [code]
qopencamwidget.cpp [code]
qopencamwidget.h [code]
view.cpp [code]
view.h [code]
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QOpenCamWidget Documentation

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main.cpp File Reference

#include <QtGui/QApplication>
-#include "view.h"
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Functions

int main (int argc, char *argv[])
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Function Documentation

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int main (int  argc,
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Definition at line 28 of file main.cpp.

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qopencamwidget.cpp File Reference

#include "qopencamwidget.h"
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qopencamwidget.h File Reference

#include <QtGui>
-#include <opencv/cv.h>
-#include <opencv/highgui.h>
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Classes

class  QOpenCamWidget
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QOpenCamWidget

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o+Class List

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o*Class Members

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\*File Members

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view.cpp File Reference

#include "view.h"
-#include "qopencamwidget.h"
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view.h File Reference

#include <QtGui>
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Classes

class  View
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The paintEvent itself is regularily triggered by explicit update() calls in \fBQOpenCamWidget::grabFrame()\fP. -.PP -Definition at line 144 of file qopencamwidget.cpp. -.PP -References canvas, and nextFrame. -.SS "void QOpenCamWidget::setSnapshotVisible (bool visible)" -.PP -Changes the visibility of the optional built-in 'Take snapshot' button. -.PP -The widget contains a push-button that optionally can be displayed. When visible, this button is located at the bottom of the widget, and causes the SLOT \fBQOpenCamWidget::startSnap\fP to be triggered when clicked. -.PP -\fBParameters:\fP -.RS 4 -\fIvisible\fP True makes the button display, and trigger, false turns the feature off. False, i.e. no button, is default. -.RE -.PP - -.PP -Definition at line 110 of file qopencamwidget.cpp. -.PP -References layout, startSnap(), trigger, and trigger_active. -.PP -Referenced by View::View(). -.SS "bool QOpenCamWidget::grabCapture (int source)" -.PP -Grabs an OpenCV video capture source. -.PP -By grabbing a source, it is meant to open the capture source, and have it ready to start streaming/capturing frames. Returns true on success, false on error. The grabCapture is separated from the constructor and/or frame-grabbing, so that you may do the error-checking you really should do before proceeding. -.PP -\fBParameters:\fP -.RS 4 -\fIsource\fP The OpenCV capture source enumeration index to open -.RE -.PP - -.PP -Definition at line 183 of file qopencamwidget.cpp. -.PP -References canvas, and capture. -.PP -Referenced by View::View(). -.SS "void QOpenCamWidget::startCapture (void)" -.PP -Starts up grabbing of video frames. -.PP -The actual grabbing and displaying of video frames is performed by a QTimer triggering the SLOT \fBQOpenCamWidget::grabFrame()\fP. \fBstartCapture()\fP sets up the timer running this captureFrame loop. -.PP -The SLOT \fBQOpenCamWidget::startSnap()\fP is used to get image frames out from the widget for other uses, like saving or processing. This function relies on the timer created and configured by \fBstartCapture()\fP, and as such, this function is the only permitted way to start the actual capture/streaming of video from the source. -.PP -Definition at line 217 of file qopencamwidget.cpp. -.PP -References frametimer, grabFrame(), and trigger. -.PP -Referenced by View::View(). -.SS "QImage * QOpenCamWidget::Ipl2QImage (const IplImage * img)" -.PP -Converts from the OpenCV IplImage data structure to a QImage. -.PP -OpenCV uses a data strcuture calles IplImage, optimized for computer vision image processing tasks. This code was adapted from kcamwidget.cpp, part of the KDE SVN at playground/multimedia/kcam/kcamwidget.cpp -.PP -In regard that the IplImage can be forced into a format that aligns well with a RBG888-format, the conversion becomes one of the shortes, simples IplImage->QImage I've seen. -.PP -\fBParameters:\fP -.RS 4 -\fI*img\fP The IplImage to be converted to a QImage. -.RE -.PP - -.PP -Definition at line 241 of file qopencamwidget.cpp. -.PP -Referenced by grabFrame(). -.SS "void QOpenCamWidget::grabFrame (void)\fC [slot]\fP" -.PP -Grabs a frame and causes an update() when triggered. -.PP -This is the SLOT that actually reads the video source and causes the widget to display live video. Preferably this slot will never be called my any other signal that a timeout() on the frametimer, which is controlled by \fBQOpenCamWidget::startCapture()\fP -.PP -Definition at line 266 of file qopencamwidget.cpp. -.PP -References capture, Ipl2QImage(), and nextFrame. -.PP -Referenced by startCapture(). -.SS "void QOpenCamWidget::startSnap (void)\fC [slot]\fP" -.PP -Trigger this slot to save a frame from the widget. -.PP -When this slot is triggered, the widgets capture loop is temporarily stopped, and the last displayed frame is 'captured', and made available through the emitting of the class imageReady SIGNAL. -.PP -With the 'Take snapshot' button visible (setSnapshotVisible(true)), this SLOT is triggered when the user clicks on the trigger button. If you do not wish to use the internal trigger button, you will have to add a different mechanism to trigger this SLOT. -.PP -It is possible, though I would not recommend, to use repeated triggering of this slot to do repeated frame-capture, and thus make a form of 'Animation' or 'Video' capture. -.PP -Definition at line 306 of file qopencamwidget.cpp. -.PP -References frametimer, imageReady(), and nextFrame. -.PP -Referenced by setSnapshotVisible(). -.SS "void QOpenCamWidget::imageReady (QImage snapshot)\fC [signal]\fP" -.PP -Referenced by startSnap(). -.SH "Member Data Documentation" -.PP -.SS "CvCapture* \fBQOpenCamWidget::capture\fP\fC [private]\fP" -.PP -Definition at line 35 of file qopencamwidget.h. -.PP -Referenced by grabCapture(), grabFrame(), and ~QOpenCamWidget(). -.SS "QTimer* \fBQOpenCamWidget::frametimer\fP\fC [private]\fP" -.PP -Definition at line 36 of file qopencamwidget.h. -.PP -Referenced by QOpenCamWidget(), startCapture(), and startSnap(). -.SS "QImage* \fBQOpenCamWidget::nextFrame\fP\fC [private]\fP" -.PP -Definition at line 37 of file qopencamwidget.h. -.PP -Referenced by grabFrame(), paintEvent(), QOpenCamWidget(), and startSnap(). -.SS "QLabel* \fBQOpenCamWidget::canvas\fP\fC [private]\fP" -.PP -Definition at line 39 of file qopencamwidget.h. -.PP -Referenced by grabCapture(), paintEvent(), QOpenCamWidget(), and ~QOpenCamWidget(). -.SS "QVBoxLayout* \fBQOpenCamWidget::layout\fP\fC [private]\fP" -.PP -Definition at line 40 of file qopencamwidget.h. -.PP -Referenced by QOpenCamWidget(), and setSnapshotVisible(). -.SS "QPushButton* \fBQOpenCamWidget::trigger\fP\fC [private]\fP" -.PP -Definition at line 41 of file qopencamwidget.h. -.PP -Referenced by QOpenCamWidget(), setSnapshotVisible(), startCapture(), and ~QOpenCamWidget(). -.SS "bool \fBQOpenCamWidget::trigger_active\fP\fC [private]\fP" -.PP -Definition at line 42 of file qopencamwidget.h. -.PP -Referenced by QOpenCamWidget(), and setSnapshotVisible(). - -.SH "Author" -.PP -Generated automatically by Doxygen for QOpenCamWidget from the source code. diff --git a/doc/man/man3/View.3 b/doc/man/man3/View.3 deleted file mode 100644 index 192b38a..0000000 --- a/doc/man/man3/View.3 +++ /dev/null @@ -1,51 +0,0 @@ -.TH "View" 3 "11 Jun 2009" "QOpenCamWidget" \" -*- nroff -*- -.ad l -.nh -.SH NAME -View \- -.SH SYNOPSIS -.br -.PP -\fC#include \fP -.PP -.SS "Public Slots" - -.in +1c -.ti -1c -.RI "void \fBsaveImage\fP (QImage image)" -.br -.in -1c -.SS "Public Member Functions" - -.in +1c -.ti -1c -.RI "\fBView\fP (QWidget *parent=0)" -.br -.ti -1c -.RI "\fB~View\fP (void)" -.br -.in -1c -.SH "Detailed Description" -.PP -Definition at line 5 of file view.h. -.SH "Constructor & Destructor Documentation" -.PP -.SS "View::View (QWidget * parent = \fC0\fP)" -.PP -Definition at line 32 of file view.cpp. -.PP -References QOpenCamWidget::grabCapture(), saveImage(), QOpenCamWidget::setSnapshotVisible(), and QOpenCamWidget::startCapture(). -.SS "View::~View (void)" -.PP -Definition at line 74 of file view.cpp. -.SH "Member Function Documentation" -.PP -.SS "void View::saveImage (QImage image)\fC [slot]\fP" -.PP -Definition at line 78 of file view.cpp. -.PP -Referenced by View(). - -.SH "Author" -.PP -Generated automatically by Doxygen for QOpenCamWidget from the source code. diff --git a/doc/man/man3/main.cpp.3 b/doc/man/man3/main.cpp.3 deleted file mode 100644 index d14a23d..0000000 --- a/doc/man/man3/main.cpp.3 +++ /dev/null @@ -1,28 +0,0 @@ -.TH "main.cpp" 3 "11 Jun 2009" "QOpenCamWidget" \" -*- nroff -*- -.ad l -.nh -.SH NAME -main.cpp \- -.SH SYNOPSIS -.br -.PP -\fC#include \fP -.br -\fC#include 'view.h'\fP -.br - -.SS "Functions" - -.in +1c -.ti -1c -.RI "int \fBmain\fP (int argc, char *argv[])" -.br -.in -1c -.SH "Function Documentation" -.PP -.SS "int main (int argc, char * argv[])" -.PP -Definition at line 28 of file main.cpp. -.SH "Author" -.PP -Generated automatically by Doxygen for QOpenCamWidget from the source code. diff --git a/doc/man/man3/qopencamwidget.cpp.3 b/doc/man/man3/qopencamwidget.cpp.3 deleted file mode 100644 index b7cc0c4..0000000 --- a/doc/man/man3/qopencamwidget.cpp.3 +++ /dev/null @@ -1,14 +0,0 @@ -.TH "qopencamwidget.cpp" 3 "11 Jun 2009" "QOpenCamWidget" \" -*- nroff -*- -.ad l -.nh -.SH NAME -qopencamwidget.cpp \- -.SH SYNOPSIS -.br -.PP -\fC#include 'qopencamwidget.h'\fP -.br - -.SH "Author" -.PP -Generated automatically by Doxygen for QOpenCamWidget from the source code. diff --git a/doc/man/man3/qopencamwidget.h.3 b/doc/man/man3/qopencamwidget.h.3 deleted file mode 100644 index c9c487d..0000000 --- a/doc/man/man3/qopencamwidget.h.3 +++ /dev/null @@ -1,25 +0,0 @@ -.TH "qopencamwidget.h" 3 "11 Jun 2009" "QOpenCamWidget" \" -*- nroff -*- -.ad l -.nh -.SH NAME -qopencamwidget.h \- -.SH SYNOPSIS -.br -.PP -\fC#include \fP -.br -\fC#include \fP -.br -\fC#include \fP -.br - -.SS "Classes" - -.in +1c -.ti -1c -.RI "class \fBQOpenCamWidget\fP" -.br -.in -1c -.SH "Author" -.PP -Generated automatically by Doxygen for QOpenCamWidget from the source code. diff --git a/doc/man/man3/view.cpp.3 b/doc/man/man3/view.cpp.3 deleted file mode 100644 index 8a03c21..0000000 --- a/doc/man/man3/view.cpp.3 +++ /dev/null @@ -1,16 +0,0 @@ -.TH "view.cpp" 3 "11 Jun 2009" "QOpenCamWidget" \" -*- nroff -*- -.ad l -.nh -.SH NAME -view.cpp \- -.SH SYNOPSIS -.br -.PP -\fC#include 'view.h'\fP -.br -\fC#include 'qopencamwidget.h'\fP -.br - -.SH "Author" -.PP -Generated automatically by Doxygen for QOpenCamWidget from the source code. diff --git a/doc/man/man3/view.h.3 b/doc/man/man3/view.h.3 deleted file mode 100644 index 2014d1b..0000000 --- a/doc/man/man3/view.h.3 +++ /dev/null @@ -1,21 +0,0 @@ -.TH "view.h" 3 "11 Jun 2009" "QOpenCamWidget" \" -*- nroff -*- -.ad l -.nh -.SH NAME -view.h \- -.SH SYNOPSIS -.br -.PP -\fC#include \fP -.br - -.SS "Classes" - -.in +1c -.ti -1c -.RI "class \fBView\fP" -.br -.in -1c -.SH "Author" -.PP -Generated automatically by Doxygen for QOpenCamWidget from the 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List{\comment endTitleHead} -\par \pard\plain -{\comment startTextBlock} -{ -\pard\plain \s17\sa60\sb30\widctlpar\qj \fs22\cgrid Here is a list of all files with brief descriptions:{\comment endTextBlock} -} -{\comment (startIndexList)} -{ -\par -\pard\plain \s71\li360\sa27\sb27\widctlpar\tqr\tldot\tx8640\adjustright \fs20\cgrid -{\comment (startIndexKey)} -{\b {\b main.cpp}{\comment (endIndexKey)} -{\comment (startIndexValue)} - {\comment (endIndexValue)} -} \tab {\field\fldedit {\*\fldinst PAGEREF AAAAAAAAAA \\*MERGEFORMAT}{\fldrslt pagenum}} -{\comment (newParagraph)} -\par -{\comment (startIndexKey)} -{\b {\b qopencamwidget.cpp}{\comment (endIndexKey)} -{\comment (startIndexValue)} - {\comment (endIndexValue)} -} \tab {\field\fldedit {\*\fldinst PAGEREF AAAAAAAAAC \\*MERGEFORMAT}{\fldrslt pagenum}} -{\comment (newParagraph)} -\par -{\comment (startIndexKey)} -{\b {\b qopencamwidget.h}{\comment (endIndexKey)} -{\comment (startIndexValue)} - {\comment (endIndexValue)} -} \tab 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\s2\sb240\sa60\keepn\widctlpar\adjustright \b\f1\fs28\kerning28\cgrid -QOpenCamWidget Class Reference{\comment endTitleHead} -\par \pard\plain -{\tc\tcl2 \v QOpenCamWidget} -{\xe \v QOpenCamWidget} -{\comment writeAnchor (classQOpenCamWidget)} -{\bkmkstart AAAAAAAAAG} -{\bkmkend AAAAAAAAAG} -{\comment startTextBlock} -{ -\pard\plain \s17\sa60\sb30\widctlpar\qj \fs22\cgrid {\f2 #include }{\comment (newParagraph)} -\par -{\comment (newParagraph)} -\par -{\comment endTextBlock} -} -{\comment startGroupHeader} -\pard\plain \s3\sb240\sa60\keepn\widctlpar\adjustright \b\f1\cgrid -Public Slots{\comment endGroupHeader} -\par -\pard\plain - -{\comment (startMemberList) } -{ -{\comment startMemberItem } -\pard\plain \s80\fi-360\li360\widctlpar\jclisttab\tx360{\*\pn \pnlvlbody\ilvl0\ls1\pnrnot0\pndec }\ls1\adjustright \fs20\cgrid -void {\b grabFrame} (void){\comment endMemberItem } -{\comment (newParagraph)} -\par -{\comment (startMemberDescription)} -{ -\pard\plain \s51\li360\sa60\sb30\qj\widctlpar\qj\adjustright \fs20\cgrid {\i {\s17\sa60\sb30\widctlpar\qj \fs22\cgrid -Grabs a frame and causes an update() when triggered. \par -}{\comment (endMemberDescription)} -}} -{\comment startMemberItem } -\pard\plain \s80\fi-360\li360\widctlpar\jclisttab\tx360{\*\pn \pnlvlbody\ilvl0\ls1\pnrnot0\pndec }\ls1\adjustright \fs20\cgrid -void {\b startSnap} (){\comment endMemberItem } -{\comment (newParagraph)} -\par -{\comment (startMemberDescription)} -{ -\pard\plain \s51\li360\sa60\sb30\qj\widctlpar\qj\adjustright \fs20\cgrid {\i {\s17\sa60\sb30\widctlpar\qj \fs22\cgrid -Trigger this slot to save a frame from the widget. \par -}{\comment (endMemberDescription)} -}} -{\comment (endMemberList) } -} -{\comment startGroupHeader} -\pard\plain \s3\sb240\sa60\keepn\widctlpar\adjustright \b\f1\cgrid -Signals{\comment endGroupHeader} -\par -\pard\plain - -{\comment (startMemberList) } -{ -{\comment startMemberItem } -\pard\plain \s80\fi-360\li360\widctlpar\jclisttab\tx360{\*\pn \pnlvlbody\ilvl0\ls1\pnrnot0\pndec }\ls1\adjustright \fs20\cgrid -void {\b imageReady} (QImage snapshot){\comment endMemberItem } -{\comment (newParagraph)} -\par -{\comment (endMemberList) } -} -{\comment startGroupHeader} -\pard\plain \s3\sb240\sa60\keepn\widctlpar\adjustright \b\f1\cgrid -Public Member Functions{\comment endGroupHeader} -\par -\pard\plain - -{\comment (startMemberList) } -{ -{\comment startMemberItem } -\pard\plain \s80\fi-360\li360\widctlpar\jclisttab\tx360{\*\pn \pnlvlbody\ilvl0\ls1\pnrnot0\pndec }\ls1\adjustright \fs20\cgrid -{\b QOpenCamWidget} (QWidget *parent=0){\comment endMemberItem } -{\comment (newParagraph)} -\par -{\comment (startMemberDescription)} -{ -\pard\plain \s51\li360\sa60\sb30\qj\widctlpar\qj\adjustright \fs20\cgrid {\i {\s17\sa60\sb30\widctlpar\qj \fs22\cgrid -Consctructs a QWidget based widget for displaying video coming from an OpenCV capture source. \par -}{\comment (endMemberDescription)} -}} -{\comment startMemberItem } -\pard\plain \s80\fi-360\li360\widctlpar\jclisttab\tx360{\*\pn \pnlvlbody\ilvl0\ls1\pnrnot0\pndec }\ls1\adjustright \fs20\cgrid -{\b ~QOpenCamWidget} (void){\comment endMemberItem } -{\comment (newParagraph)} -\par -{\comment startMemberItem } -\pard\plain \s80\fi-360\li360\widctlpar\jclisttab\tx360{\*\pn \pnlvlbody\ilvl0\ls1\pnrnot0\pndec }\ls1\adjustright \fs20\cgrid -void {\b paintEvent} (QPaintEvent *event){\comment endMemberItem } -{\comment (newParagraph)} -\par -{\comment (startMemberDescription)} -{ -\pard\plain \s51\li360\sa60\sb30\qj\widctlpar\qj\adjustright \fs20\cgrid {\i {\s17\sa60\sb30\widctlpar\qj \fs22\cgrid -A paint event is a request to repaint all or part of a widget. \par -}{\comment (endMemberDescription)} -}} -{\comment startMemberItem } -\pard\plain \s80\fi-360\li360\widctlpar\jclisttab\tx360{\*\pn \pnlvlbody\ilvl0\ls1\pnrnot0\pndec }\ls1\adjustright \fs20\cgrid -void {\b setSnapshotVisible} (bool visible){\comment endMemberItem } -{\comment (newParagraph)} -\par -{\comment (startMemberDescription)} -{ -\pard\plain \s51\li360\sa60\sb30\qj\widctlpar\qj\adjustright \fs20\cgrid {\i {\s17\sa60\sb30\widctlpar\qj \fs22\cgrid -Changes the visibility of the optional built-in "Take snapshot" button. \par -}{\comment (endMemberDescription)} -}} -{\comment startMemberItem } -\pard\plain \s80\fi-360\li360\widctlpar\jclisttab\tx360{\*\pn \pnlvlbody\ilvl0\ls1\pnrnot0\pndec }\ls1\adjustright \fs20\cgrid -bool {\b grabCapture} (int source){\comment endMemberItem } -{\comment (newParagraph)} -\par -{\comment (startMemberDescription)} -{ -\pard\plain \s51\li360\sa60\sb30\qj\widctlpar\qj\adjustright \fs20\cgrid {\i {\s17\sa60\sb30\widctlpar\qj \fs22\cgrid -Grabs an OpenCV video capture source. \par -}{\comment (endMemberDescription)} -}} -{\comment startMemberItem } -\pard\plain \s80\fi-360\li360\widctlpar\jclisttab\tx360{\*\pn \pnlvlbody\ilvl0\ls1\pnrnot0\pndec }\ls1\adjustright \fs20\cgrid -void {\b startCapture} (void){\comment endMemberItem } -{\comment (newParagraph)} -\par -{\comment (startMemberDescription)} -{ -\pard\plain \s51\li360\sa60\sb30\qj\widctlpar\qj\adjustright \fs20\cgrid {\i {\s17\sa60\sb30\widctlpar\qj \fs22\cgrid -Starts up grabbing of video frames. \par -}{\comment (endMemberDescription)} -}} -{\comment startMemberItem } -\pard\plain \s80\fi-360\li360\widctlpar\jclisttab\tx360{\*\pn \pnlvlbody\ilvl0\ls1\pnrnot0\pndec }\ls1\adjustright \fs20\cgrid -QImage * {\b Ipl2QImage} (const IplImage *img){\comment endMemberItem } -{\comment (newParagraph)} -\par -{\comment (startMemberDescription)} -{ -\pard\plain \s51\li360\sa60\sb30\qj\widctlpar\qj\adjustright \fs20\cgrid {\i {\s17\sa60\sb30\widctlpar\qj \fs22\cgrid -Converts from the OpenCV IplImage data structure to a QImage. \par -}{\comment (endMemberDescription)} -}} -{\comment (endMemberList) } -} -{\comment startGroupHeader} -\pard\plain \s3\sb240\sa60\keepn\widctlpar\adjustright \b\f1\cgrid -Private Attributes{\comment endGroupHeader} -\par -\pard\plain - -{\comment (startMemberList) } -{ -{\comment startMemberItem } -\pard\plain \s80\fi-360\li360\widctlpar\jclisttab\tx360{\*\pn \pnlvlbody\ilvl0\ls1\pnrnot0\pndec }\ls1\adjustright \fs20\cgrid -CvCapture * {\b capture}{\comment endMemberItem } -{\comment (newParagraph)} -\par -{\comment startMemberItem } -\pard\plain \s80\fi-360\li360\widctlpar\jclisttab\tx360{\*\pn \pnlvlbody\ilvl0\ls1\pnrnot0\pndec }\ls1\adjustright \fs20\cgrid -QTimer * {\b frametimer}{\comment endMemberItem } -{\comment (newParagraph)} -\par -{\comment startMemberItem } -\pard\plain \s80\fi-360\li360\widctlpar\jclisttab\tx360{\*\pn \pnlvlbody\ilvl0\ls1\pnrnot0\pndec }\ls1\adjustright \fs20\cgrid -QImage * {\b nextFrame}{\comment endMemberItem } -{\comment (newParagraph)} -\par -{\comment startMemberItem } -\pard\plain \s80\fi-360\li360\widctlpar\jclisttab\tx360{\*\pn \pnlvlbody\ilvl0\ls1\pnrnot0\pndec }\ls1\adjustright \fs20\cgrid -QLabel * {\b canvas}{\comment endMemberItem } -{\comment (newParagraph)} -\par -{\comment startMemberItem } -\pard\plain \s80\fi-360\li360\widctlpar\jclisttab\tx360{\*\pn \pnlvlbody\ilvl0\ls1\pnrnot0\pndec }\ls1\adjustright \fs20\cgrid -QVBoxLayout * {\b layout}{\comment endMemberItem } -{\comment (newParagraph)} -\par -{\comment startMemberItem } -\pard\plain \s80\fi-360\li360\widctlpar\jclisttab\tx360{\*\pn \pnlvlbody\ilvl0\ls1\pnrnot0\pndec }\ls1\adjustright \fs20\cgrid -QPushButton * {\b trigger}{\comment endMemberItem } -{\comment (newParagraph)} -\par -{\comment startMemberItem } -\pard\plain \s80\fi-360\li360\widctlpar\jclisttab\tx360{\*\pn \pnlvlbody\ilvl0\ls1\pnrnot0\pndec }\ls1\adjustright \fs20\cgrid -bool {\b trigger_active}{\comment endMemberItem } -{\comment (newParagraph)} -\par -{\comment (endMemberList) } -} -{\comment (rtfwriteRuler_thin)} -{\pard\widctlpar\brdrb\brdrs\brdrw5\brsp20 \adjustright \par} -{\comment startGroupHeader} -\pard\plain \s3\sb240\sa60\keepn\widctlpar\adjustright \b\f1\cgrid -Detailed Description{\comment endGroupHeader} -\par -\pard\plain -{\comment startTextBlock} -{ -\pard\plain \s17\sa60\sb30\widctlpar\qj \fs22\cgrid {\comment startParagraph} -{ -Definition at line 29 of file qopencamwidget.h.{\comment endParagraph} -}\par -{\comment endTextBlock} -} -{\comment (rtfwriteRuler_thin)} -{\pard\widctlpar\brdrb\brdrs\brdrw5\brsp20 \adjustright \par} -{\comment startGroupHeader} -\pard\plain \s3\sb240\sa60\keepn\widctlpar\adjustright \b\f1\cgrid -Constructor & Destructor Documentation{\comment endGroupHeader} -\par -\pard\plain -{\comment startDoxyAnchor} -{\comment startMemberDoc} -{\xe \v QOpenCamWidget\:QOpenCamWidget} -{\xe \v QOpenCamWidget\:QOpenCamWidget} -\pard\plain \s4\sb240\sa60\keepn\widctlpar\adjustright \b\f1\fs20\cgrid { -{\b -QOpenCamWidget::QOpenCamWidget ({\comment (startParameterList)} -QWidget * {\i parent} = {\f2 0}){\comment endMemberDoc} -} -}{\comment (newParagraph)} -\par -{\comment endDoxyAnchor} -{\bkmkstart AAAAAAAAAI} -{\bkmkend AAAAAAAAAI} -{\comment (startIndent) } -{ -\pard\plain \s51\li360\sa60\sb30\qj\widctlpar\qj\adjustright \fs20\cgrid -{\s17\sa60\sb30\widctlpar\qj \fs22\cgrid -Consctructs a QWidget based widget for displaying video coming from an OpenCV capture source. \par -}{\s17\sa60\sb30\widctlpar\qj \fs22\cgrid -Including webcam data in a Qt application can be problematic, at least as long as Phonon does not support webcams, and the Phonon GStreamer backend only supports simple pipelines.\par -This class solves the complexity of adding a webcam view, by using the cross-platform available OpenCV library.\par -Limitations, i.e. reasons to read this code and reimplement, are: saving or streaming video is not really available (unless you do repeated timer-triggered connections to the startSnap slot), the widget size is identical to the video source dimensions (it resizes the wodget using setMinimuSize to the video dimensions, and does not handle resizing to sizes above this dimension.\par -A brief summary of how to use this class: { -\par -\pard\plain \s41\li360\widctlpar\adjustright \shading1000\cbpat8 \f2\fs16\cgrid QOpenCamWidget *cw = new QOpenCamWidget(this);{\comment (lineBreak)} -\par - if ( cw->grabCapture(-1) ) \{{\comment (lineBreak)} -\par - cw->setSnapshotVisible(true);{\comment (lineBreak)} -\par - cw->startCapture();{\comment (lineBreak)} -\par - \}{\comment (lineBreak)} -\par - connect( cw, SIGNAL(imageReady(QImage)), this, SLOT(saveImage(QImage)));{\comment (lineBreak)} -\par -} -\par -{{\s5\sb90\sa30\keepn\widctlpar\adjustright \b\f1\fs20\cgrid -Parameters:\par} -\pard\plain \s62\li720\widctlpar\ql\adjustright \fs20\cgrid {\i *parent} The parent widget containing this widget, defaults to NULL. \par -} -}{\comment startParagraph} -{ -Definition at line 60 of file qopencamwidget.cpp.{\comment endParagraph} -}\par -{\comment startParagraph} -{ -References canvas, frametimer, layout, nextFrame, trigger, and trigger_active.{\comment endParagraph} -}\par -} -{\comment startDoxyAnchor} -{\comment startMemberDoc} -{\xe \v ~QOpenCamWidget\:QOpenCamWidget} -{\xe \v QOpenCamWidget\:~QOpenCamWidget} -\pard\plain \s4\sb240\sa60\keepn\widctlpar\adjustright \b\f1\fs20\cgrid { -{\b -QOpenCamWidget::~QOpenCamWidget ({\comment (startParameterList)} -void){\comment endMemberDoc} -} -}{\comment (newParagraph)} -\par -{\comment endDoxyAnchor} -{\bkmkstart AAAAAAAAAJ} -{\bkmkend AAAAAAAAAJ} -{\comment (startIndent) } -{ -\pard\plain \s51\li360\sa60\sb30\qj\widctlpar\qj\adjustright \fs20\cgrid -{\comment startParagraph} -{\comment (newParagraph)} -\par -{ -Definition at line 88 of file qopencamwidget.cpp.{\comment endParagraph} -}\par -{\comment startParagraph} -{ -References canvas, capture, and trigger.{\comment endParagraph} -}\par -} -{\comment (rtfwriteRuler_thin)} -{\pard\widctlpar\brdrb\brdrs\brdrw5\brsp20 \adjustright \par} -{\comment startGroupHeader} -\pard\plain \s3\sb240\sa60\keepn\widctlpar\adjustright \b\f1\cgrid -Member Function Documentation{\comment endGroupHeader} -\par -\pard\plain -{\comment startDoxyAnchor} -{\comment startMemberDoc} -{\xe \v paintEvent\:QOpenCamWidget} -{\xe \v QOpenCamWidget\:paintEvent} -\pard\plain \s4\sb240\sa60\keepn\widctlpar\adjustright \b\f1\fs20\cgrid { -{\b -void QOpenCamWidget::paintEvent ({\comment (startParameterList)} -QPaintEvent * {\i event}){\comment endMemberDoc} -} -}{\comment (newParagraph)} -\par -{\comment endDoxyAnchor} -{\bkmkstart AAAAAAAAAK} -{\bkmkend AAAAAAAAAK} -{\comment (startIndent) } -{ -\pard\plain \s51\li360\sa60\sb30\qj\widctlpar\qj\adjustright \fs20\cgrid -{\s17\sa60\sb30\widctlpar\qj \fs22\cgrid -A paint event is a request to repaint all or part of a widget. \par -}{\s17\sa60\sb30\widctlpar\qj \fs22\cgrid -It can happen for one of the following reasons:\par -{ -\par\pard\plain \s81\fi-360\li720\widctlpar\jclisttab\tx720{\*\pn \pnlvlbody\ilvl0\ls2\pnrnot0\pndec }\ls2\adjustright \fs20\cgrid -repaint() or update() was invoked, \par\pard\plain \s81\fi-360\li720\widctlpar\jclisttab\tx720{\*\pn \pnlvlbody\ilvl0\ls2\pnrnot0\pndec }\ls2\adjustright \fs20\cgrid -the widget was obscured and has now been uncovered, or \par\pard\plain \s81\fi-360\li720\widctlpar\jclisttab\tx720{\*\pn \pnlvlbody\ilvl0\ls2\pnrnot0\pndec }\ls2\adjustright \fs20\cgrid -many other reasons.\par -} -{\b QOpenCamWidget} uses the paintEvent to draw each frame onto the screen. The paintEvent itself is regularily triggered by explicit update() calls in {\b QOpenCamWidget::grabFrame()}. \par -}{\comment startParagraph} -{ -Definition at line 144 of file qopencamwidget.cpp.{\comment endParagraph} -}\par -{\comment startParagraph} -{ -References canvas, and nextFrame.{\comment endParagraph} -}\par -} -{\comment startDoxyAnchor} -{\comment startMemberDoc} -{\xe \v setSnapshotVisible\:QOpenCamWidget} -{\xe \v QOpenCamWidget\:setSnapshotVisible} -\pard\plain \s4\sb240\sa60\keepn\widctlpar\adjustright \b\f1\fs20\cgrid { -{\b -void QOpenCamWidget::setSnapshotVisible ({\comment (startParameterList)} -bool {\i visible}){\comment endMemberDoc} -} -}{\comment (newParagraph)} -\par -{\comment endDoxyAnchor} -{\bkmkstart AAAAAAAAAL} -{\bkmkend AAAAAAAAAL} -{\comment (startIndent) } -{ -\pard\plain \s51\li360\sa60\sb30\qj\widctlpar\qj\adjustright \fs20\cgrid -{\s17\sa60\sb30\widctlpar\qj \fs22\cgrid -Changes the visibility of the optional built-in "Take snapshot" button. \par -}{\s17\sa60\sb30\widctlpar\qj \fs22\cgrid -The widget contains a push-button that optionally can be displayed. When visible, this button is located at the bottom of the widget, and causes the SLOT {\b QOpenCamWidget::startSnap} to be triggered when clicked.\par -{{\s5\sb90\sa30\keepn\widctlpar\adjustright \b\f1\fs20\cgrid -Parameters:\par} -\pard\plain \s62\li720\widctlpar\ql\adjustright \fs20\cgrid {\i visible} True makes the button display, and trigger, false turns the feature off. False, i.e. no button, is default. \par -} -}{\comment startParagraph} -{ -Definition at line 110 of file qopencamwidget.cpp.{\comment endParagraph} -}\par -{\comment startParagraph} -{ -References layout, startSnap(), trigger, and trigger_active.{\comment endParagraph} -}\par -{\comment startParagraph} -{ -Referenced by View::View().{\comment endParagraph} -}\par -} -{\comment startDoxyAnchor} -{\comment startMemberDoc} -{\xe \v grabCapture\:QOpenCamWidget} -{\xe \v QOpenCamWidget\:grabCapture} -\pard\plain \s4\sb240\sa60\keepn\widctlpar\adjustright \b\f1\fs20\cgrid { -{\b -bool QOpenCamWidget::grabCapture ({\comment (startParameterList)} -int {\i source}){\comment endMemberDoc} -} -}{\comment (newParagraph)} -\par -{\comment endDoxyAnchor} -{\bkmkstart AAAAAAAAAM} -{\bkmkend AAAAAAAAAM} -{\comment (startIndent) } -{ -\pard\plain \s51\li360\sa60\sb30\qj\widctlpar\qj\adjustright \fs20\cgrid -{\s17\sa60\sb30\widctlpar\qj \fs22\cgrid -Grabs an OpenCV video capture source. \par -}{\s17\sa60\sb30\widctlpar\qj \fs22\cgrid -By grabbing a source, it is meant to open the capture source, and have it ready to start streaming/capturing frames. Returns true on success, false on error. The grabCapture is separated from the constructor and/or frame-grabbing, so that you may do the error-checking you really should do before proceeding.\par -{{\s5\sb90\sa30\keepn\widctlpar\adjustright \b\f1\fs20\cgrid -Parameters:\par} -\pard\plain \s62\li720\widctlpar\ql\adjustright \fs20\cgrid {\i source} The OpenCV capture source enumeration index to open \par -} -}{\comment startParagraph} -{ -Definition at line 183 of file qopencamwidget.cpp.{\comment endParagraph} -}\par -{\comment startParagraph} -{ -References canvas, and capture.{\comment endParagraph} -}\par -{\comment startParagraph} -{ -Referenced by View::View().{\comment endParagraph} -}\par -} -{\comment startDoxyAnchor} -{\comment startMemberDoc} -{\xe \v startCapture\:QOpenCamWidget} -{\xe \v QOpenCamWidget\:startCapture} -\pard\plain \s4\sb240\sa60\keepn\widctlpar\adjustright \b\f1\fs20\cgrid { -{\b -void QOpenCamWidget::startCapture ({\comment (startParameterList)} -void){\comment endMemberDoc} -} -}{\comment (newParagraph)} -\par -{\comment endDoxyAnchor} -{\bkmkstart AAAAAAAAAN} -{\bkmkend AAAAAAAAAN} -{\comment (startIndent) } -{ -\pard\plain \s51\li360\sa60\sb30\qj\widctlpar\qj\adjustright \fs20\cgrid -{\s17\sa60\sb30\widctlpar\qj \fs22\cgrid -Starts up grabbing of video frames. \par -}{\s17\sa60\sb30\widctlpar\qj \fs22\cgrid -The actual grabbing and displaying of video frames is performed by a QTimer triggering the SLOT {\b QOpenCamWidget::grabFrame()}. {\b startCapture()} sets up the timer running this captureFrame loop.\par -The SLOT {\b QOpenCamWidget::startSnap()} is used to get image frames out from the widget for other uses, like saving or processing. This function relies on the timer created and configured by {\b startCapture()}, and as such, this function is the only permitted way to start the actual capture/streaming of video from the source. \par -}{\comment startParagraph} -{ -Definition at line 217 of file qopencamwidget.cpp.{\comment endParagraph} -}\par -{\comment startParagraph} -{ -References frametimer, grabFrame(), and trigger.{\comment endParagraph} -}\par -{\comment startParagraph} -{ -Referenced by View::View().{\comment endParagraph} -}\par -} -{\comment startDoxyAnchor} -{\comment startMemberDoc} -{\xe \v Ipl2QImage\:QOpenCamWidget} -{\xe \v QOpenCamWidget\:Ipl2QImage} -\pard\plain \s4\sb240\sa60\keepn\widctlpar\adjustright \b\f1\fs20\cgrid { -{\b -QImage * QOpenCamWidget::Ipl2QImage ({\comment (startParameterList)} -const IplImage * {\i img}){\comment endMemberDoc} -} -}{\comment (newParagraph)} -\par -{\comment endDoxyAnchor} -{\bkmkstart AAAAAAAAAO} -{\bkmkend AAAAAAAAAO} -{\comment (startIndent) } -{ -\pard\plain \s51\li360\sa60\sb30\qj\widctlpar\qj\adjustright \fs20\cgrid -{\s17\sa60\sb30\widctlpar\qj \fs22\cgrid -Converts from the OpenCV IplImage data structure to a QImage. \par -}{\s17\sa60\sb30\widctlpar\qj \fs22\cgrid -OpenCV uses a data strcuture calles IplImage, optimized for computer vision image processing tasks. This code was adapted from kcamwidget.cpp, part of the KDE SVN at playground/multimedia/kcam/kcamwidget.cpp\par -In regard that the IplImage can be forced into a format that aligns well with a RBG888-format, the conversion becomes one of the shortes, simples IplImage->QImage I've seen.\par -{{\s5\sb90\sa30\keepn\widctlpar\adjustright \b\f1\fs20\cgrid -Parameters:\par} -\pard\plain \s62\li720\widctlpar\ql\adjustright \fs20\cgrid {\i *img} The IplImage to be converted to a QImage. \par -} -}{\comment startParagraph} -{ -Definition at line 241 of file qopencamwidget.cpp.{\comment endParagraph} -}\par -{\comment startParagraph} -{ -Referenced by grabFrame().{\comment endParagraph} -}\par -} -{\comment startDoxyAnchor} -{\comment startMemberDoc} -{\xe \v grabFrame\:QOpenCamWidget} -{\xe \v QOpenCamWidget\:grabFrame} -\pard\plain \s4\sb240\sa60\keepn\widctlpar\adjustright \b\f1\fs20\cgrid { -{\b -void QOpenCamWidget::grabFrame ({\comment (startParameterList)} -void){\f2 [slot]}{\comment endMemberDoc} -} -}{\comment (newParagraph)} -\par -{\comment endDoxyAnchor} -{\bkmkstart AAAAAAAAAP} -{\bkmkend AAAAAAAAAP} -{\comment (startIndent) } -{ -\pard\plain \s51\li360\sa60\sb30\qj\widctlpar\qj\adjustright \fs20\cgrid -{\s17\sa60\sb30\widctlpar\qj \fs22\cgrid -Grabs a frame and causes an update() when triggered. \par -}{\s17\sa60\sb30\widctlpar\qj \fs22\cgrid -This is the SLOT that actually reads the video source and causes the widget to display live video. Preferably this slot will never be called my any other signal that a timeout() on the frametimer, which is controlled by {\b QOpenCamWidget::startCapture()} \par -}{\comment startParagraph} -{ -Definition at line 266 of file qopencamwidget.cpp.{\comment endParagraph} -}\par -{\comment startParagraph} -{ -References capture, Ipl2QImage(), and nextFrame.{\comment endParagraph} -}\par -{\comment startParagraph} -{ -Referenced by startCapture().{\comment endParagraph} -}\par -} -{\comment startDoxyAnchor} -{\comment startMemberDoc} -{\xe \v startSnap\:QOpenCamWidget} -{\xe \v QOpenCamWidget\:startSnap} -\pard\plain \s4\sb240\sa60\keepn\widctlpar\adjustright \b\f1\fs20\cgrid { -{\b -void QOpenCamWidget::startSnap ({\comment (startParameterList)} -void){\f2 [slot]}{\comment endMemberDoc} -} -}{\comment (newParagraph)} -\par -{\comment endDoxyAnchor} -{\bkmkstart AAAAAAAAAQ} -{\bkmkend AAAAAAAAAQ} -{\comment (startIndent) } -{ -\pard\plain \s51\li360\sa60\sb30\qj\widctlpar\qj\adjustright \fs20\cgrid -{\s17\sa60\sb30\widctlpar\qj \fs22\cgrid -Trigger this slot to save a frame from the widget. \par -}{\s17\sa60\sb30\widctlpar\qj \fs22\cgrid -When this slot is triggered, the widgets capture loop is temporarily stopped, and the last displayed frame is "captured", and made available through the emitting of the class imageReady SIGNAL.\par -With the "Take snapshot" button visible (setSnapshotVisible(true)), this SLOT is triggered when the user clicks on the trigger button. If you do not wish to use the internal trigger button, you will have to add a different mechanism to trigger this SLOT.\par -It is possible, though I would not recommend, to use repeated triggering of this slot to do repeated frame-capture, and thus make a form of "Animation" or "Video" capture. \par -}{\comment startParagraph} -{ -Definition at line 306 of file qopencamwidget.cpp.{\comment endParagraph} -}\par -{\comment startParagraph} -{ -References frametimer, imageReady(), and nextFrame.{\comment endParagraph} -}\par -{\comment startParagraph} -{ -Referenced by setSnapshotVisible().{\comment endParagraph} -}\par -} -{\comment startDoxyAnchor} -{\comment startMemberDoc} -{\xe \v imageReady\:QOpenCamWidget} -{\xe \v QOpenCamWidget\:imageReady} -\pard\plain \s4\sb240\sa60\keepn\widctlpar\adjustright \b\f1\fs20\cgrid { -{\b -void QOpenCamWidget::imageReady ({\comment (startParameterList)} -QImage {\i snapshot}){\f2 [signal]}{\comment endMemberDoc} -} -}{\comment (newParagraph)} -\par -{\comment endDoxyAnchor} -{\bkmkstart AAAAAAAAAR} -{\bkmkend AAAAAAAAAR} -{\comment (startIndent) } -{ -\pard\plain \s51\li360\sa60\sb30\qj\widctlpar\qj\adjustright \fs20\cgrid -{\comment startParagraph} -{\comment (newParagraph)} -\par -{ -Referenced by startSnap().{\comment endParagraph} -}\par -} -{\comment (rtfwriteRuler_thin)} -{\pard\widctlpar\brdrb\brdrs\brdrw5\brsp20 \adjustright \par} -{\comment startGroupHeader} -\pard\plain \s3\sb240\sa60\keepn\widctlpar\adjustright \b\f1\cgrid -Member Data Documentation{\comment endGroupHeader} -\par -\pard\plain -{\comment startDoxyAnchor} -{\comment startMemberDoc} -{\xe \v capture\:QOpenCamWidget} -{\xe \v QOpenCamWidget\:capture} -\pard\plain \s4\sb240\sa60\keepn\widctlpar\adjustright \b\f1\fs20\cgrid { -{\b -CvCapture* {\b QOpenCamWidget::capture}{\f2 [private]}{\comment endMemberDoc} -} -}{\comment (newParagraph)} -\par -{\comment endDoxyAnchor} -{\bkmkstart AAAAAAAAAS} -{\bkmkend AAAAAAAAAS} -{\comment (startIndent) } -{ -\pard\plain \s51\li360\sa60\sb30\qj\widctlpar\qj\adjustright \fs20\cgrid -{\comment startParagraph} -{\comment (newParagraph)} -\par -{ -Definition at line 35 of file qopencamwidget.h.{\comment endParagraph} -}\par -{\comment startParagraph} -{ -Referenced by grabCapture(), grabFrame(), and ~QOpenCamWidget().{\comment endParagraph} -}\par -} -{\comment startDoxyAnchor} -{\comment startMemberDoc} -{\xe \v frametimer\:QOpenCamWidget} -{\xe \v QOpenCamWidget\:frametimer} -\pard\plain \s4\sb240\sa60\keepn\widctlpar\adjustright \b\f1\fs20\cgrid { -{\b -QTimer* {\b QOpenCamWidget::frametimer}{\f2 [private]}{\comment endMemberDoc} -} -}{\comment (newParagraph)} -\par -{\comment endDoxyAnchor} -{\bkmkstart AAAAAAAAAT} -{\bkmkend AAAAAAAAAT} -{\comment (startIndent) } -{ -\pard\plain \s51\li360\sa60\sb30\qj\widctlpar\qj\adjustright \fs20\cgrid -{\comment startParagraph} -{\comment (newParagraph)} -\par -{ -Definition at line 36 of file qopencamwidget.h.{\comment endParagraph} -}\par -{\comment startParagraph} -{ -Referenced by QOpenCamWidget(), startCapture(), and startSnap().{\comment endParagraph} -}\par -} -{\comment startDoxyAnchor} -{\comment startMemberDoc} -{\xe \v nextFrame\:QOpenCamWidget} -{\xe \v QOpenCamWidget\:nextFrame} -\pard\plain \s4\sb240\sa60\keepn\widctlpar\adjustright \b\f1\fs20\cgrid { -{\b -QImage* {\b QOpenCamWidget::nextFrame}{\f2 [private]}{\comment endMemberDoc} -} -}{\comment (newParagraph)} -\par -{\comment endDoxyAnchor} -{\bkmkstart AAAAAAAAAU} -{\bkmkend AAAAAAAAAU} -{\comment (startIndent) } -{ -\pard\plain \s51\li360\sa60\sb30\qj\widctlpar\qj\adjustright \fs20\cgrid -{\comment startParagraph} -{\comment (newParagraph)} -\par -{ -Definition at line 37 of file qopencamwidget.h.{\comment endParagraph} -}\par -{\comment startParagraph} -{ -Referenced by grabFrame(), paintEvent(), QOpenCamWidget(), and startSnap().{\comment endParagraph} -}\par -} -{\comment startDoxyAnchor} -{\comment startMemberDoc} -{\xe \v canvas\:QOpenCamWidget} -{\xe \v QOpenCamWidget\:canvas} -\pard\plain \s4\sb240\sa60\keepn\widctlpar\adjustright \b\f1\fs20\cgrid { -{\b -QLabel* {\b QOpenCamWidget::canvas}{\f2 [private]}{\comment endMemberDoc} -} -}{\comment (newParagraph)} -\par -{\comment endDoxyAnchor} -{\bkmkstart AAAAAAAAAV} -{\bkmkend AAAAAAAAAV} -{\comment (startIndent) } -{ -\pard\plain \s51\li360\sa60\sb30\qj\widctlpar\qj\adjustright \fs20\cgrid -{\comment startParagraph} -{\comment (newParagraph)} -\par -{ -Definition at line 39 of file qopencamwidget.h.{\comment endParagraph} -}\par -{\comment startParagraph} -{ -Referenced by grabCapture(), paintEvent(), QOpenCamWidget(), and ~QOpenCamWidget().{\comment endParagraph} -}\par -} -{\comment startDoxyAnchor} -{\comment startMemberDoc} -{\xe \v layout\:QOpenCamWidget} -{\xe \v QOpenCamWidget\:layout} -\pard\plain \s4\sb240\sa60\keepn\widctlpar\adjustright \b\f1\fs20\cgrid { -{\b -QVBoxLayout* {\b QOpenCamWidget::layout}{\f2 [private]}{\comment endMemberDoc} -} -}{\comment (newParagraph)} -\par -{\comment endDoxyAnchor} -{\bkmkstart AAAAAAAAAW} -{\bkmkend AAAAAAAAAW} -{\comment (startIndent) } -{ -\pard\plain \s51\li360\sa60\sb30\qj\widctlpar\qj\adjustright \fs20\cgrid -{\comment startParagraph} -{\comment (newParagraph)} -\par -{ -Definition at line 40 of file qopencamwidget.h.{\comment endParagraph} -}\par -{\comment startParagraph} -{ -Referenced by QOpenCamWidget(), and setSnapshotVisible().{\comment endParagraph} -}\par -} -{\comment startDoxyAnchor} -{\comment startMemberDoc} -{\xe \v trigger\:QOpenCamWidget} -{\xe \v QOpenCamWidget\:trigger} -\pard\plain \s4\sb240\sa60\keepn\widctlpar\adjustright \b\f1\fs20\cgrid { -{\b -QPushButton* {\b QOpenCamWidget::trigger}{\f2 [private]}{\comment endMemberDoc} -} -}{\comment (newParagraph)} -\par -{\comment endDoxyAnchor} -{\bkmkstart AAAAAAAAAX} -{\bkmkend AAAAAAAAAX} -{\comment (startIndent) } -{ -\pard\plain \s51\li360\sa60\sb30\qj\widctlpar\qj\adjustright \fs20\cgrid -{\comment startParagraph} -{\comment (newParagraph)} -\par -{ -Definition at line 41 of file qopencamwidget.h.{\comment endParagraph} -}\par -{\comment startParagraph} -{ -Referenced by QOpenCamWidget(), setSnapshotVisible(), startCapture(), and ~QOpenCamWidget().{\comment endParagraph} -}\par -} -{\comment startDoxyAnchor} -{\comment startMemberDoc} -{\xe \v trigger_active\:QOpenCamWidget} -{\xe \v QOpenCamWidget\:trigger_active} -\pard\plain \s4\sb240\sa60\keepn\widctlpar\adjustright \b\f1\fs20\cgrid { -{\b -bool {\b QOpenCamWidget::trigger_active}{\f2 [private]}{\comment endMemberDoc} -} -}{\comment (newParagraph)} -\par -{\comment endDoxyAnchor} -{\bkmkstart AAAAAAAAAY} -{\bkmkend AAAAAAAAAY} -{\comment (startIndent) } -{ -\pard\plain \s51\li360\sa60\sb30\qj\widctlpar\qj\adjustright \fs20\cgrid -{\comment startParagraph} -{\comment (newParagraph)} -\par -{ -Definition at line 42 of file qopencamwidget.h.{\comment endParagraph} -}\par -{\comment startParagraph} -{ -Referenced by QOpenCamWidget(), and setSnapshotVisible().{\comment endParagraph} -}\par -} -{\comment startTextBlock} -{ -\pard\plain \s17\sa60\sb30\widctlpar\qj \fs22\cgrid {\comment (rtfwriteRuler_thin)} -{\pard\widctlpar\brdrb\brdrs\brdrw5\brsp20 \adjustright \par} -The documentation for this class was generated from the following files:{\comment (startItemList level=0) } -{{\comment (writeListItem)} -{\comment (newParagraph)} -\par -\pard\plain \s81\fi-360\li720\widctlpar\jclisttab\tx720{\*\pn \pnlvlbody\ilvl0\ls2\pnrnot0\pndec }\ls2\adjustright \fs20\cgrid -{\b qopencamwidget.h}{\comment (writeListItem)} -{\comment (newParagraph)} -\par -\pard\plain \s81\fi-360\li720\widctlpar\jclisttab\tx720{\*\pn \pnlvlbody\ilvl0\ls2\pnrnot0\pndec }\ls2\adjustright \fs20\cgrid -{\b qopencamwidget.cpp}{\comment (newParagraph)} -\par -{\comment (endItemList level=1)} -}{\comment endTextBlock} -} -{\comment endFile} -{\comment end include classQOpenCamWidget.rtf} -\par \pard\plain - -{\comment BeginRTFSection} -\pard\plain \sect\sbkpage -\s2\sb240\sa60\keepn\widctlpar\adjustright \b\f1\fs28\kerning28\cgrid -{\comment begin include classView.rtf} -{\comment startTitleHead} -\pard\plain \s2\sb240\sa60\keepn\widctlpar\adjustright \b\f1\fs28\kerning28\cgrid -View Class Reference{\comment endTitleHead} -\par \pard\plain -{\tc\tcl2 \v View} -{\xe \v View} -{\comment writeAnchor (classView)} -{\bkmkstart AAAAAAAAAH} -{\bkmkend AAAAAAAAAH} -{\comment startTextBlock} -{ -\pard\plain \s17\sa60\sb30\widctlpar\qj \fs22\cgrid {\f2 #include }{\comment (newParagraph)} -\par -{\comment (newParagraph)} -\par -{\comment endTextBlock} -} -{\comment startGroupHeader} -\pard\plain \s3\sb240\sa60\keepn\widctlpar\adjustright \b\f1\cgrid -Public Slots{\comment endGroupHeader} -\par -\pard\plain - -{\comment (startMemberList) } -{ -{\comment startMemberItem } -\pard\plain \s80\fi-360\li360\widctlpar\jclisttab\tx360{\*\pn \pnlvlbody\ilvl0\ls1\pnrnot0\pndec }\ls1\adjustright \fs20\cgrid -void {\b saveImage} (QImage image){\comment endMemberItem } -{\comment (newParagraph)} -\par -{\comment (endMemberList) } -} -{\comment startGroupHeader} -\pard\plain \s3\sb240\sa60\keepn\widctlpar\adjustright \b\f1\cgrid -Public Member Functions{\comment endGroupHeader} -\par -\pard\plain - -{\comment (startMemberList) } -{ -{\comment startMemberItem } -\pard\plain \s80\fi-360\li360\widctlpar\jclisttab\tx360{\*\pn \pnlvlbody\ilvl0\ls1\pnrnot0\pndec }\ls1\adjustright \fs20\cgrid -{\b View} (QWidget *parent=0){\comment endMemberItem } -{\comment (newParagraph)} -\par -{\comment startMemberItem } -\pard\plain \s80\fi-360\li360\widctlpar\jclisttab\tx360{\*\pn \pnlvlbody\ilvl0\ls1\pnrnot0\pndec }\ls1\adjustright \fs20\cgrid -{\b ~View} (void){\comment endMemberItem } -{\comment (newParagraph)} -\par -{\comment (endMemberList) } -} -{\comment (rtfwriteRuler_thin)} -{\pard\widctlpar\brdrb\brdrs\brdrw5\brsp20 \adjustright \par} -{\comment startGroupHeader} -\pard\plain \s3\sb240\sa60\keepn\widctlpar\adjustright \b\f1\cgrid -Detailed Description{\comment endGroupHeader} -\par -\pard\plain -{\comment startTextBlock} -{ -\pard\plain \s17\sa60\sb30\widctlpar\qj \fs22\cgrid {\comment startParagraph} -{ -Definition at line 5 of file view.h.{\comment endParagraph} -}\par -{\comment endTextBlock} -} -{\comment (rtfwriteRuler_thin)} -{\pard\widctlpar\brdrb\brdrs\brdrw5\brsp20 \adjustright \par} -{\comment startGroupHeader} -\pard\plain \s3\sb240\sa60\keepn\widctlpar\adjustright \b\f1\cgrid -Constructor & Destructor Documentation{\comment endGroupHeader} -\par -\pard\plain -{\comment startDoxyAnchor} -{\comment startMemberDoc} -{\xe \v View\:View} -{\xe \v View\:View} -\pard\plain \s4\sb240\sa60\keepn\widctlpar\adjustright \b\f1\fs20\cgrid { -{\b -View::View ({\comment (startParameterList)} -QWidget * {\i parent} = {\f2 0}){\comment endMemberDoc} -} -}{\comment (newParagraph)} -\par -{\comment endDoxyAnchor} -{\bkmkstart AAAAAAAAAZ} -{\bkmkend AAAAAAAAAZ} -{\comment (startIndent) } -{ -\pard\plain \s51\li360\sa60\sb30\qj\widctlpar\qj\adjustright \fs20\cgrid -{\comment startParagraph} -{\comment (newParagraph)} -\par -{ -Definition at line 32 of file view.cpp.{\comment endParagraph} -}\par -{\comment startParagraph} -{ -References QOpenCamWidget::grabCapture(), saveImage(), QOpenCamWidget::setSnapshotVisible(), and QOpenCamWidget::startCapture().{\comment endParagraph} -}\par -} -{\comment startDoxyAnchor} -{\comment startMemberDoc} -{\xe \v ~View\:View} -{\xe \v View\:~View} -\pard\plain \s4\sb240\sa60\keepn\widctlpar\adjustright \b\f1\fs20\cgrid { -{\b -View::~View ({\comment (startParameterList)} -void){\comment endMemberDoc} -} -}{\comment (newParagraph)} -\par -{\comment endDoxyAnchor} -{\bkmkstart AAAAAAAABA} -{\bkmkend AAAAAAAABA} -{\comment (startIndent) } -{ -\pard\plain \s51\li360\sa60\sb30\qj\widctlpar\qj\adjustright \fs20\cgrid -{\comment startParagraph} -{\comment (newParagraph)} -\par -{ -Definition at line 74 of file view.cpp.{\comment endParagraph} -}\par -} -{\comment (rtfwriteRuler_thin)} -{\pard\widctlpar\brdrb\brdrs\brdrw5\brsp20 \adjustright \par} -{\comment startGroupHeader} -\pard\plain \s3\sb240\sa60\keepn\widctlpar\adjustright \b\f1\cgrid -Member Function Documentation{\comment endGroupHeader} -\par -\pard\plain -{\comment startDoxyAnchor} -{\comment startMemberDoc} -{\xe \v saveImage\:View} -{\xe \v View\:saveImage} -\pard\plain \s4\sb240\sa60\keepn\widctlpar\adjustright \b\f1\fs20\cgrid { -{\b -void View::saveImage ({\comment (startParameterList)} -QImage {\i image}){\f2 [slot]}{\comment endMemberDoc} -} -}{\comment (newParagraph)} -\par -{\comment endDoxyAnchor} -{\bkmkstart AAAAAAAABB} -{\bkmkend AAAAAAAABB} -{\comment (startIndent) } -{ -\pard\plain \s51\li360\sa60\sb30\qj\widctlpar\qj\adjustright \fs20\cgrid -{\comment startParagraph} -{\comment (newParagraph)} -\par -{ -Definition at line 78 of file view.cpp.{\comment endParagraph} -}\par -{\comment startParagraph} -{ -Referenced by View().{\comment endParagraph} -}\par -} -{\comment startTextBlock} -{ -\pard\plain \s17\sa60\sb30\widctlpar\qj \fs22\cgrid {\comment (rtfwriteRuler_thin)} -{\pard\widctlpar\brdrb\brdrs\brdrw5\brsp20 \adjustright \par} -The documentation for this class was generated from the following files:{\comment (startItemList level=0) } -{{\comment (writeListItem)} -{\comment (newParagraph)} -\par -\pard\plain \s81\fi-360\li720\widctlpar\jclisttab\tx720{\*\pn \pnlvlbody\ilvl0\ls2\pnrnot0\pndec }\ls2\adjustright \fs20\cgrid -{\b view.h}{\comment (writeListItem)} -{\comment (newParagraph)} -\par -\pard\plain \s81\fi-360\li720\widctlpar\jclisttab\tx720{\*\pn \pnlvlbody\ilvl0\ls2\pnrnot0\pndec }\ls2\adjustright \fs20\cgrid -{\b view.cpp}{\comment (newParagraph)} -\par -{\comment (endItemList level=1)} -}{\comment endTextBlock} -} -{\comment endFile} -{\comment end include classView.rtf} - -{\comment BeginRTFChapter} -\pard\plain \sect\sbkpage -\s1\sb240\sa60\keepn\widctlpar\adjustright \b\f1\fs36\kerning36\cgrid -File Documentation{\tc \v File Documentation} -\par \pard\plain -{\comment begin include main_8cpp.rtf} -{\comment startTitleHead} -\pard\plain \s2\sb240\sa60\keepn\widctlpar\adjustright \b\f1\fs28\kerning28\cgrid -main.cpp File Reference{\comment endTitleHead} -\par \pard\plain -{\tc\tcl2 \v main.cpp} -{\xe \v main.cpp} -{\comment writeAnchor (main_8cpp)} -{\bkmkstart AAAAAAAAAA} -{\bkmkend AAAAAAAAAA} -{\comment startTextBlock} -{ -\pard\plain \s18\widctlpar\fs22\cgrid {\f2 #include }{\comment (lineBreak)} -\par -{\f2 #include "view.h"}{\comment (lineBreak)} -\par -{\comment endTextBlock} -} -{\comment startGroupHeader} -\pard\plain \s3\sb240\sa60\keepn\widctlpar\adjustright \b\f1\cgrid -Functions{\comment endGroupHeader} -\par -\pard\plain - -{\comment (startMemberList) } -{ -{\comment startMemberItem } -\pard\plain \s80\fi-360\li360\widctlpar\jclisttab\tx360{\*\pn \pnlvlbody\ilvl0\ls1\pnrnot0\pndec }\ls1\adjustright \fs20\cgrid -int {\b main} (int argc, char *argv[]){\comment endMemberItem } -{\comment (newParagraph)} -\par -{\comment (endMemberList) } -} -{\comment (rtfwriteRuler_thin)} -{\pard\widctlpar\brdrb\brdrs\brdrw5\brsp20 \adjustright \par} -{\comment startGroupHeader} -\pard\plain \s3\sb240\sa60\keepn\widctlpar\adjustright \b\f1\cgrid -Function Documentation{\comment endGroupHeader} -\par -\pard\plain -{\comment startDoxyAnchor} -{\comment startMemberDoc} -{\xe \v main\:main.cpp} -{\xe \v main.cpp\:main} -\pard\plain \s4\sb240\sa60\keepn\widctlpar\adjustright \b\f1\fs20\cgrid { -{\b -int main ({\comment (startParameterList)} -int {\i argc}, {\comment (startParameterList)} - char * {\i argv}[]){\comment endMemberDoc} -} -}{\comment (newParagraph)} -\par -{\comment endDoxyAnchor} -{\bkmkstart AAAAAAAAAB} -{\bkmkend AAAAAAAAAB} -{\comment (startIndent) } -{ -\pard\plain \s51\li360\sa60\sb30\qj\widctlpar\qj\adjustright \fs20\cgrid -{\comment startParagraph} -{\comment (newParagraph)} -\par -{ -Definition at line 28 of file main.cpp.{\comment endParagraph} -}\par -} -{\comment 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