render CameraFocus in another thread

app/SandboxSetup/camerafocus.cpp

 #include "camerafocus.h"
 #include "ui_camerafocus.h"
 
+
+
+CameraFocus::RefreshFrame::RefreshFrame(CameraFocus *_camera) : QThread() {
+    camera = _camera;
+}
+
+void CameraFocus::RefreshFrame::run() {
+    camera->refreshFrame();
+}
+
+
 CameraFocus::CameraFocus(SandboxSetup *sandbox, MonitorGui *_mg, QWidget *parent) :
     SubApp("Camera focus", "Error", parent),
     ui(new Ui::CameraFocus)
@@ -8,18 +19,23 @@ CameraFocus::CameraFocus(SandboxSetup *sandbox, MonitorGui *_mg, QWidget *parent
     ui->setupUi(this);
     setup = sandbox;
     mg = _mg;
+    myThread = new RefreshFrame(this);
+    //connect(myThread, &RefreshFrame::finished, myThread, &QObject::deleteLater);
     blackScreen = new QtFullScreen(mg->getResolution(), true, this);
 
     setup->loadFrameProcessProfil();
     initCameraParams();
     frameTimer = new QTimer(this);
-    connect(frameTimer, &QTimer::timeout, this, &CameraFocus::refreshFrame);
+    connect(frameTimer, &QTimer::timeout, this, &CameraFocus::startCapture);
 }
 
 CameraFocus::~CameraFocus()
 {
     delete frameTimer;
     delete blackScreen;
+    myThread->quit();
+    myThread->wait();
+    delete myThread;
     delete ui;
 }
 
@@ -38,7 +54,7 @@ void CameraFocus::closeEvent(QCloseEvent *event){
     QWidget::closeEvent(event);
 }
 
-// TODO : override "checkRoutine" to ensure that the profil makes sense
+// TODO : override "checkRoutine" to ensure the profil makes sense
 
 void CameraFocus::valideRoutine(){
 
@@ -50,6 +66,10 @@ void CameraFocus::cancelRoutine(){
     endSuccess = false;
 }
 
+void CameraFocus::startCapture(){
+    myThread->start();
+}
+
 void CameraFocus::refreshFrame(){
 
     setup->getCamera()->capture();
@@ -61,7 +81,6 @@ void CameraFocus::refreshFrame(){
     std::vector<cv::Point3i> crc;
 
     if(profil->getCannyEdgeThreshold() >= 10 && profil->getHoughAccThreshold() >= 20){
-    // std::vector<cv::Point3i> Beamer::findCircles(cv::Mat &rgb, double contrast, int brightness, double centersMinDist, int cannyEdgeThreshold, int houghAccThreshold, double minRadius, double maxRadius);
 
         double minDist = rgb.rows / (double)profil->getRadiusRatio();
         crc = setup->getBeamer()->findCircles( rgb,

app/SandboxSetup/camerafocus.h

@@ -3,6 +3,7 @@
 
 #include <QDialog>
 #include <QTimer>
+#include <QThread>
 #include <QAbstractButton>
 #include <sandboxSetup.h>
 #include "monitorgui.h"
@@ -13,6 +14,7 @@ namespace Ui {
 class CameraFocus;
 }
 
+
 class CameraFocus : public SubApp
 {
     Q_OBJECT
@@ -20,7 +22,7 @@ class CameraFocus : public SubApp
 public:
     explicit CameraFocus(SandboxSetup *sandbox, MonitorGui *_mg, QWidget *parent = 0);
     ~CameraFocus();
-
+    void refreshFrame();
     void valideRoutine();
     void cancelRoutine();
 
@@ -49,17 +51,30 @@ protected:
     void closeEvent(QCloseEvent *event);
 
 private:
+
+    class RefreshFrame : public QThread
+    {
+        public:
+            explicit RefreshFrame(CameraFocus *camera);
+            void run();
+
+        private:
+            CameraFocus *camera;
+    };
+
     Ui::CameraFocus *ui;
     SandboxSetup *setup;
     MonitorGui *mg;
+    RefreshFrame *myThread;
     QTimer *frameTimer;
     QtFullScreen *blackScreen;
     FrameProcessProfil defaultProfil;
     bool displayConstrasts = false;
 
-    void refreshFrame();
+    void startCapture();
     void loadProfil(FrameProcessProfil *profilLoaded, FrameProcessProfil *profilSaved);
     void initCameraParams();
 };
 
+
 #endif // CAMERAFOCUS_H

app/SandboxSetup/camerafocus.ui

@@ -66,7 +66,7 @@
     <item row="2" column="0">
      <widget class="QLabel" name="label_3">
       <property name="text">
-       <string>ratio of circle radius from camera's width</string>
+       <string>Distance between circles's center based on ratio from camera's width</string>
       </property>
       <property name="textFormat">
        <enum>Qt::AutoText</enum>

app/SandboxSetup/initcamera.ui

@@ -16,8 +16,8 @@
   <widget class="QLabel" name="label">
    <property name="geometry">
     <rect>
-     <x>110</x>
-     <y>140</y>
+     <x>50</x>
+     <y>40</y>
      <width>161</width>
      <height>17</height>
     </rect>