add Qt full screen class

app/SandboxSetup/SandboxSetup.pro

@@ -30,14 +30,16 @@ SOURCES += \
     camerafocus.cpp \
     croppingmask.cpp \
     maskedit.cpp \
-    projectiongui.cpp
+    projectiongui.cpp \
+    qtfullscreen.cpp
 
 HEADERS += \
     monitorgui.h \
     camerafocus.h \
     croppingmask.h \
     maskedit.h \
-    projectiongui.h
+    projectiongui.h \
+    qtfullscreen.h
 
 FORMS += \
     monitorgui.ui \

app/SandboxSetup/monitorgui.cpp

@@ -27,6 +27,23 @@ MonitorGui::~MonitorGui()
     delete ui;
 }
 
+QScreen* MonitorGui::getScreen(){
+
+    QScreen *sc = QApplication::screens().at(0);
+    QList<QScreen *> lst = sc->virtualSiblings();
+
+
+    for(int i=0; i<lst.size(); i++){
+      std::string name = lst[i]->name().toStdString();
+      if(name == outputName.toStdString()){
+          sc = lst.at(i);
+          break;
+      }
+    }
+
+    return sc;
+}
+
 void MonitorGui::on_cbxOutputs_currentIndexChanged(int index)
 {
     QList<QScreen*> screens = QApplication::screens();

app/SandboxSetup/monitorgui.h

@@ -9,6 +9,7 @@
 #include <fstream>
 #include <map>
 #include <iostream>
+#include <QScreen>
 
 namespace Ui {
 class MonitorGui;
@@ -25,6 +26,8 @@ public:
     int getHeight(){ return height; };
     int getWidth(){ return width; };
     std::string getOutput(){ return outputName.toStdString(); };
+    QScreen* getScreen();
+
     bool isOk(){ return valideState; };
 
 private slots:
@@ -33,11 +36,14 @@ private slots:
 
 private:
     Ui::MonitorGui *ui;
+    bool valideState = false;
+    std::map<std::string, std::vector<std::string>> monitors;
+
     int height = 0;
     int width = 0;
     QString outputName = "";
-    bool valideState = false;
-    std::map<std::string, std::vector<std::string>> monitors;
+
+
     void loadResolutionsOf(QScreen* screen);
     std::vector<std::string> splitResolution(std::string s);
     bool isResolution(std::string s);

app/SandboxSetup/projectiongui.cpp

@@ -5,7 +5,6 @@ ProjectionGui::ProjectionGui(SandboxSetup *_setup, MonitorGui *_mg, QWidget *par
     QDialog(parent),
     ui(new Ui::ProjectionGui)
 {
-    blueScreen = new QDialog;
     setup = _setup;
     mg = _mg;
     ui->setupUi(this);
@@ -31,25 +30,15 @@ void ProjectionGui::on_btnSkip_clicked()
 // Note : Screens should be in extented mode, not mirror (to avoid loop noise from the capture of the screen)
 void ProjectionGui::on_btnStart_clicked()
 {
-    QScreen *sc = QApplication::screens().at(0);
-    QList<QScreen *> lst = sc->virtualSiblings();
-
-    for(int i=0; i<lst.size(); i++){
-        std::string name = lst[i]->name().toStdString();
-        if(name == mg->getOutput()){
-            sc = lst[i];
-            break;
-        }
-    }
-
+    QScreen *sc = mg->getScreen();
     // open blue screen on the selected output
-    blueScreen->setGeometry(sc->geometry());
-    blueScreen->setStyleSheet("background-color:blue;");
-    blueScreen->show();
+    cv::Mat blue = cv::Mat(1, 1, CV_8UC3, cv::Scalar(0, 0, 255));
+    blueScreen = new QtFullScreen(sc);
+    blueScreen->imShow(blue);
 
+    cameraUsed = true;
     ui->fContainer->hide();
     frameTimer->start(100);
-    cameraUsed = true;
 }
 
 void ProjectionGui::refreshFrame(){

app/SandboxSetup/projectiongui.h

@@ -4,6 +4,7 @@
 #include <QDialog>
 #include <sandboxSetup.h>
 #include "monitorgui.h"
+#include "qtfullscreen.h"
 
 namespace Ui {
 class ProjectionGui;
@@ -27,7 +28,7 @@ private:
     SandboxSetup *setup;
     MonitorGui *mg;
     QTimer *frameTimer;
-    QDialog *blueScreen;
+    QtFullScreen *blueScreen;
     bool cameraUsed = false;
 
     void refreshFrame();

app/SandboxSetup/qtfullscreen.cpp

+#include "qtfullscreen.h"
+
+QtFullScreen::QtFullScreen(QScreen *_sc, QWidget *parent) : QWidget(parent)
+{
+    win = new QDialog;
+    screen = _sc;
+    win->setGeometry(screen->geometry());
+    image = new QLabel(win);
+    image->setGeometry(0, 0 , win->geometry().width(), win->geometry().height());
+    image->setScaledContents(true);
+}
+
+void QtFullScreen::imShow(cv::Mat frame){
+
+    QImage src = QImage((uchar *)frame.data, (int)frame.cols, (int)frame.rows, static_cast<int>(frame.step.buf[0]), QImage::Format_RGB888);
+    QPixmap px = QPixmap::fromImage(src);
+    image->setPixmap(px);
+
+    if(!win->isVisible())
+        win->show();
+}
+
+void QtFullScreen::close(){
+    if(win->isVisible())
+        win->close();
+}

app/SandboxSetup/qtfullscreen.h

+#ifndef QTFULLSCREEN_H
+#define QTFULLSCREEN_H
+
+#include <opencv2/opencv.hpp>
+#include <QWidget>
+#include <QLabel>
+#include <QScreen>
+#include <QDialog>
+
+class QtFullScreen : public QWidget
+{
+    Q_OBJECT
+public:
+    explicit QtFullScreen(QScreen *sc, QWidget *parent = nullptr);
+    void imShow(cv::Mat frame);
+    void close();
+
+signals:
+
+public slots:
+
+private:
+    QDialog *win;
+    QLabel *image;
+    QScreen *screen;
+};
+
+#endif // QTFULLSCREEN_H

src/lib/sandboxSetup.cpp

@@ -102,7 +102,7 @@ int SandboxSetup::setupProjection(){
 void SandboxSetup::captureBlueScreen(int delay){
     
     // Blue screen 
-    char windowName[] = "border";
+    char windowName[] = "BlueScreen";
     initWindowsFullScreen(windowName);
     cv::Mat frameBeamer(cv::Size(beamer.getWidth(), beamer.getHeight()), CV_8UC3, cv::Scalar(255, 0, 0));
     cv::imshow(windowName, frameBeamer);