added symbol to indicate buzzer connectivity

added timer to refresh connectivity

CHANGELOG

@@ -7,6 +7,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ## [Unreleased]
 ### Added
 - added profiles dialog
+- buzzer icon in the upper left corner indicating that the buzzer is connected
 ### Fixed
 - start seqnece continues in a buggy way when cancel is being pressed while 'at your marks' or 'ready'
 - bug that made the start sequence freeze if a delay of zero or lower or a non valid number was set as delay

headers/buzzerconn.h

@@ -30,19 +30,29 @@ public:
 
 private:
     QNetworkAccessManager *networkManager;
+    QNetworkAccessManager *reloadNetworkManager;
     QDateTime *date;
 
 signals:
 
 public slots:
-    ReturnData_t senddata(QUrl serviceUrl, int timeout);
+    ReturnData_t senddata(QNetworkAccessManager * NetMan, QUrl serviceUrl, int timeout);
+        //function to communicate with the buzzer
     Q_INVOKABLE QList<double> gettimes(int timeout);
+        //function to get the times from the buzzer as a list with the normal network manager
     Q_INVOKABLE bool connect();
-    Q_INVOKABLE bool calcoffset();
+        //function to connect to buzzer
+    Q_INVOKABLE bool calcoffset(QList<double> times);
+        //function that calculates the average time offset between the buzzer and the device
     Q_INVOKABLE bool buzzer_triggered();
+        //function that checks ih the buzzer has been pushed since the last call of this function
     Q_INVOKABLE bool start();
+        //syncs the buzzer and the base to make a start possible
     Q_INVOKABLE double get(QString key);
+        //can return some things (offset, lastpressed, currtime, connection_progress, connected)
     Q_INVOKABLE QString test();
+    Q_INVOKABLE bool refresh();
+        //refreshed the connection to the buzzer
 };
 
 #endif // BUZZERCONN_H

qml/main.qml

@@ -43,11 +43,13 @@ Window {
 
         Timer {
             //timer that refreshes the connection state to the buzzer
-            running: false
-            repeat: true
-            interval: 500
+            id: connectionRefreshTimer
+            running: root.state !== "RUNNING" && root.state !== "STARTING"
+            repeat: false
+            interval: 1000
             onTriggered: {
-                console.log(_cppBuzzerConn.calcoffset())
+                _cppBuzzerConn.refresh()
+                connectionRefreshTimer.start()
             }
         }
 
@@ -149,7 +151,7 @@ Window {
             onPlayingChanged: {
                 if(!playing && root.state==="STARTING"){
                     root.startTime = _cppBuzzerConn.get("currtime")
-                    _cppBuzzerConn.start()
+
                     root.currTime = _cppBuzzerConn.get("currtime")
                     time.text = ( ( root.currTime - root.startTime ) / 1000 ).toFixed(3) + " sec"
                     root.state = "RUNNING"
@@ -181,17 +183,31 @@ Window {
             }
         }
 
-        Rectangle {
+        Image {
+            id: buzzerLogo
+            source: "qrc:/graphics/icons/buzzer_black.png"
+            mipmap: true
             anchors {
                 top: parent.top
                 topMargin: 10
                 left: parent.left
                 leftMargin: 10
             }
-
+            visible: _cppBuzzerConn.get("connected")===1
+           height: root.landscape()? root.height*0.1:root.width*0.1
            width: height
-           radius: height*0.5
-           color: "#6efc0f"
+           Component.onCompleted: {
+               visible= _cppBuzzerConn.get("connected")===1
+           }
+
+           Timer {
+               interval: 100
+               running: true
+               repeat: true
+               onTriggered: {
+                   buzzerLogo.visible= _cppBuzzerConn.get("connected")===1
+               }
+           }
         }
 
         Rectangle {

shared.qrc

@@ -13,5 +13,6 @@
         <file>sounds/at_marks_1.wav</file>
         <file>sounds/ready_2.wav</file>
         <file>sounds/at_marks_2.wav</file>
+        <file>graphics/icons/buzzer_black.png</file>
     </qresource>
 </RCC>

sources/buzzerconn.cpp

@@ -3,6 +3,7 @@
 BuzzerConn::BuzzerConn(QObject *parent) : QObject(parent)
 {
     this->networkManager = new QNetworkAccessManager();
+    this->reloadNetworkManager = new QNetworkAccessManager();
 
     this->date = new QDateTime;
     this->latest_button_pressed = 0;
@@ -15,30 +16,31 @@ bool BuzzerConn::connect()
     QList<double> times = gettimes(1000);
     qDebug() << times[0];
     if(times[0] == 200.0){
-        this->connected = true;
         this->latest_button_pressed = times[2];
         for(int i=0;i<=100;i++){
             this->connection_progress = i;
-            if(!calcoffset()){
+            if(!calcoffset(this->gettimes(1000))){
                 this->connection_progress = 100;
+                this->connected = false;
                 return(false);
             }
         }
-
+        this->connected = true;
         return(true);
     }
     else{
+        this->connected = false;
         return(false);
     }
 }
 
-bool BuzzerConn::calcoffset()
+bool BuzzerConn::calcoffset(QList<double> times)
 {
-    QList<double> times = gettimes(1000);
     if(times.length() != 3){
         return(false);
     }
-    if(times[0] == 200.0 && this->connected){
+    if(times[0] == 200.0){
+        this->latest_button_pressed = times[2];
         double offset = date->currentMSecsSinceEpoch() - times[1];
         if(this->latest_offsets.length()>=100){
             this->latest_offsets.removeFirst();
@@ -54,7 +56,7 @@ bool BuzzerConn::calcoffset()
         return(true);
     }
     else {
-        this->connected = false;
+        //this->connected = false;
         return(false);
     }
 }
@@ -62,7 +64,7 @@ bool BuzzerConn::calcoffset()
 QList<double> BuzzerConn::gettimes(int timeout)
 {
     QList<double> times;
-    ReturnData_t ret = senddata(QUrl("http://192.168.4.1"), timeout);
+    ReturnData_t ret = senddata(this->networkManager, QUrl("http://192.168.4.1"), timeout);
     times.append(double(ret.status_code));
 
     if(ret.status_code == 200){
@@ -142,11 +144,35 @@ double BuzzerConn::get(QString key)
 
 QString BuzzerConn::test()
 {
-    ReturnData_t ret = this->senddata(QUrl("http://www.google.de"), 500);
+    ReturnData_t ret = this->senddata(this->networkManager, QUrl("http://www.google.de"), 500);
     return(ret.text);
 }
 
-ReturnData_t BuzzerConn::senddata(QUrl serviceUrl, int timeout)
+bool BuzzerConn::refresh()
+{
+    if(!this->connected){
+        return(false);
+    }
+    QList<double> times;
+    ReturnData_t ret = senddata(this->reloadNetworkManager, QUrl("http://192.168.4.1"), 1000);
+    times.append(double(ret.status_code));
+
+    if(ret.status_code == 200){
+        ret.text.replace("\n","");
+        ret.text.replace("\r","");
+        QStringList times_cache = ret.text.split("<br>");
+        times.append(times_cache[0].toDouble());
+        times.append(times_cache[1].toDouble());
+        calcoffset(times);
+        return(true);
+    }
+    else{
+        this->connected = false;
+        return(false);
+    }
+}
+
+ReturnData_t BuzzerConn::senddata(QNetworkAccessManager * NetMan, QUrl serviceUrl, int timeout)
 {
 
     ReturnData_t ret; //this is a custom type to store the returned data
@@ -166,10 +192,10 @@ ReturnData_t BuzzerConn::senddata(QUrl serviceUrl, int timeout)
 
     timer.setSingleShot(true);
     loop.connect(&timer, SIGNAL(timeout()), &loop, SLOT(quit()));
-    loop.connect(this->networkManager, SIGNAL(finished(QNetworkReply*)), SLOT(quit()));
+    loop.connect(NetMan, SIGNAL(finished(QNetworkReply*)), SLOT(quit()));
 
     timer.start(timeout);
-    reply = this->networkManager->post(request, pdata.toString(QUrl::FullyEncoded).toUtf8());
+    reply = NetMan->post(request, pdata.toString(QUrl::FullyEncoded).toUtf8());
     loop.exec();
     timer.stop();