From 0fba2f2c093578221d35259fd7dac1b7bd36b61e Mon Sep 17 00:00:00 2001
From: 020535 <020535@07accd87-1e0b-0410-939d-c05d8a058e03>
Date: Thu, 11 Jun 2009 21:52:53 +0000
Subject: [PATCH] Changes to view reflect changes in the QOpenCamWidget. Most
 noteably: the trigger button is now part of View, not the widget..

git-svn-id: https://dilbert.hig.no/svn/student/020535/qopencamwidget/trunk@172 07accd87-1e0b-0410-939d-c05d8a058e03
---
 view.cpp | 29 ++++++++++++++++++++---------
 1 file changed, 20 insertions(+), 9 deletions(-)

diff --git a/view.cpp b/view.cpp
index 72bc101..bd0808a 100644
--- a/view.cpp
+++ b/view.cpp
@@ -26,32 +26,35 @@
 
 // The View class is a QMainWindow, used to display our QOpenCamWidget
 // The constructor of the View takes care of setting up the Widget,
-// and handles the result of a user clicking (or activating) the widget's
+// and handles the result of a user clicking (or activating) the
 // "Take snapshot" button.
 
 View::View( QWidget *parent)
 	: QMainWindow(parent)
 {
 	
-	// Create the widget, setting the Main window (this) as its parent.
-	QOpenCamWidget *cw = new QOpenCamWidget(this);
+	QWidget *cw = new QWidget();
+	QVBoxLayout *layout = new QVBoxLayout();
+
+	// This button will be used to trigger a snapshot later on..
+	QPushButton *trigger = new QPushButton(this);
+	trigger->setText("Take picture");
 
+	// Create the widget, setting the Main window (this) as its parent.
+	QOpenCamWidget *cwcam = new QOpenCamWidget(this);
 	// bool QOpenCamWidget::grabCapture(int source) tries to get a
 	// video capture handle from OpenCV, using the source number
 	// as the device to open. Here I use -1 as the number, meaning
 	// "give me any supported and available video devica you can find".
-	if ( cw->grabCapture(-1) )
+	if ( cwcam->grabCapture(-1) )
 	{
 		// grabCapture() returns true on success. This means that
 		// we have a capture device available, and can start streaming
 		// video from the device to display on the widget.
 		
-		// TODO: Document this feature..
-		cw->setSnapshotVisible(true);
-
 		// Video output does not start until QOpenCamWidget::startCapture()
 		// is explicitly called.
-		cw->startCapture();
+		cwcam->startCapture();
 	}
 
 	// The QOpenCamWidget does not provide a video stream for further
@@ -66,8 +69,16 @@ View::View( QWidget *parent)
 	// will be available through QOpenCamWidget::imageReady(Qimage);
 	// In this sample, I hook that signal up to a slot on this QMainWindow,
 	// that saves the image, and exits the application.
-	connect( cw, SIGNAL(imageReady(QImage)), this, SLOT(saveImage(QImage)));
+	connect( cwcam, SIGNAL(imageReady(QImage)), this, SLOT(saveImage(QImage)));
+
+	// To trigger the startSnap(), we hook our previously created
+	// pushbutton to that SLOT.
+	connect( trigger, SIGNAL(clicked()), cwcam, SLOT(startSnap()));
 
+	// Add it all up, and we are ready to run.
+	layout->addWidget(cwcam);
+	layout->addWidget(trigger);
+	cw->setLayout(layout);
 	this->setCentralWidget(cw);
 }
 
-- 
2.39.2