WiP: added volume update and control

TODO: collect volume change events and send only one

mainwindow.cpp

@@ -17,9 +17,8 @@ MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWi
     mAddress = ui->txt_address->text();
 
     // load initial data
-    sendCommand("<YAMAHA_AV cmd=\"GET\"><System>"
+    sendCommand("<YAMAHA_AV cmd=\"GET\"><System><Power_Control><Power>GetParam</Power></Power_Control></System></YAMAHA_AV>");
-                 "<Power_Control><Power>GetParam</Power></Power_Control>"
+    sendCommand("<YAMAHA_AV cmd=\"GET\"><Main_Zone><Volume><Lvl>GetParam</Lvl></Volume></Main_Zone></YAMAHA_AV>");
-                 "</System></YAMAHA_AV>");
 }
 
 MainWindow::~MainWindow()
@@ -27,6 +26,72 @@ MainWindow::~MainWindow()
     delete ui;
 }
 
+void MainWindow::sendCommand(QString cmd)
+{
+    QNetworkRequest request;
+    request.setUrl("http://" + mAddress + ":80/YamahaRemoteControl/ctrl");
+    request.setRawHeader("Content-Type", "text/xml; charset=UTF-8");
+    request.setRawHeader("Content-Length", QByteArray::number(cmd.size()));
+
+    QNetworkAccessManager *networkManager = new QNetworkAccessManager(this);
+    networkManager->post(request, cmd.toUtf8());
+    connect(networkManager, &QNetworkAccessManager::finished, this, &MainWindow::replyFinished);
+}
+
+void MainWindow::replyFinished(QNetworkReply* reply)
+{
+    QString ans;
+
+    if(reply->error() == QNetworkReply::NoError) {
+        QByteArray data = reply->readAll();
+        ans = QString(data);
+    } else {
+        qDebug() << reply->url();
+        qDebug() << reply->errorString();
+        return;
+    }
+
+    // check power state
+    QRegularExpression regexPower("<Power_Control><Power>(.*)</Power></Power_Control>");
+    QRegularExpressionMatch matchPower = regexPower.match(ans);
+
+    if (matchPower.hasMatch()) {
+        if (matchPower.captured(1) == "On") mPowered = true;
+        else if (matchPower.captured(1) == "Off") mPowered = false;
+    }
+
+    // check volume
+    QRegularExpression regexVolume("<Volume><Lvl><Val>(.*)</Val>");
+    QRegularExpressionMatch matchVolume = regexVolume.match(ans);
+
+    if (matchVolume.hasMatch()) {
+        mVolume = matchVolume.captured(1).toInt();
+    }
+
+    qDebug() << ans;
+
+    reply->deleteLater();
+    updateUi();
+}
+
+void MainWindow::updateUi() {
+    ui->btn_onoff->setText(mPowered ? "On" : "Off");
+    ui->dial->setEnabled(mPowered);
+    ui->dial->setValue(mVolume);
+    ui->lbl_volume->setEnabled(mPowered);
+    ui->btn_hdmi1->setEnabled(mPowered);
+    ui->btn_hdmi2->setEnabled(mPowered);
+    ui->btn_hdmi3->setEnabled(mPowered);
+    ui->btn_spotify->setEnabled(mPowered);
+    ui->btn_airplay->setEnabled(mPowered);
+    ui->btn_audioin->setEnabled(mPowered);
+}
+
+void MainWindow::on_txt_address_textEdited(const QString &arg1)
+{
+    mAddress = arg1;
+}
+
 void MainWindow::on_btn_onoff_clicked()
 {
     if (mPowered){
@@ -43,60 +108,10 @@ void MainWindow::on_btn_onoff_clicked()
     updateUi();
 }
 
-void MainWindow::sendCommand(QString cmd)
+}
+
+void yremote::MainWindow::on_dial_valueChanged(int value)
 {
-    QNetworkRequest request;
+    ui->lbl_volume->setText(QString::number(value));
-    request.setUrl("http://" + mAddress + ":80/YamahaRemoteControl/ctrl");
+    sendCommand("<YAMAHA_AV cmd=\"PUT\"><Main_Zone><Volume><Lvl><Val>" + QString::number(value) + "</Val><Exp>1</Exp><Unit>dB</Unit></Lvl></Volume></Main_Zone></YAMAHA_AV>");
-    request.setRawHeader("Content-Type", "text/xml; charset=UTF-8");
-    request.setRawHeader("Content-Length", QByteArray::number(cmd.size()));
-
-    QNetworkAccessManager *networkManager = new QNetworkAccessManager(this);
-    mReply = networkManager->post(request, cmd.toUtf8());
-    connect(networkManager, &QNetworkAccessManager::finished, this, &MainWindow::replyFinished);
-}
-
-void MainWindow::replyFinished()
-{
-    QString ans;
-    mReply->deleteLater();
-
-    if(mReply->error() == QNetworkReply::NoError) {
-        QByteArray data = mReply->readAll();
-        ans = QString(data);
-    } else {
-        qDebug() << mReply->url();
-        qDebug() << mReply->errorString();
-        return;
-    }
-
-    // check power state
-    qDebug() << ans;
-    QRegularExpression regex("<Power_Control><Power>(.*)</Power></Power_Control>");
-    QRegularExpressionMatch match = regex.match(ans);
-
-    if (match.hasMatch()) {
-        if (match.captured(1) == "On") mPowered = true;
-        else if (match.captured(1) == "Off") mPowered = false;
-    }
-
-    updateUi();
-}
-
-void MainWindow::updateUi() {
-    ui->btn_onoff->setText(mPowered ? "On" : "Off");
-    ui->dial->setEnabled(mPowered);
-    ui->lbl_volume->setEnabled(mPowered);
-    ui->btn_hdmi1->setEnabled(mPowered);
-    ui->btn_hdmi2->setEnabled(mPowered);
-    ui->btn_hdmi3->setEnabled(mPowered);
-    ui->btn_spotify->setEnabled(mPowered);
-    ui->btn_airplay->setEnabled(mPowered);
-    ui->btn_audioin->setEnabled(mPowered);
-}
-
-void MainWindow::on_txt_address_textEdited(const QString &arg1)
-{
-    mAddress = arg1;
-}
-
 }

mainwindow.h

@@ -23,16 +23,18 @@ protected:
 
 private slots:
     void on_btn_onoff_clicked();
-    void replyFinished();
+    void replyFinished(QNetworkReply *reply);
     void on_txt_address_textEdited(const QString &arg1);
 
+    void on_dial_valueChanged(int value);
+
 private:
     Ui::MainWindow *ui;
 
     QString mAddress;
-    QNetworkReply *mReply;
 
     bool mPowered = false;
+    int mVolume = 0;
 
     void sendCommand(QString cmd);
     void updateUi();

mainwindow.ui

@@ -43,7 +43,20 @@
      </widget>
     </item>
     <item row="0" column="3" rowspan="2">
-     <widget class="QDial" name="dial"/>
+     <widget class="QDial" name="dial">
+      <property name="minimum">
+       <number>-805</number>
+      </property>
+      <property name="maximum">
+       <number>-165</number>
+      </property>
+      <property name="singleStep">
+       <number>5</number>
+      </property>
+      <property name="pageStep">
+       <number>5</number>
+      </property>
+     </widget>
     </item>
     <item row="1" column="0" rowspan="2" colspan="3">
      <widget class="QGroupBox" name="groupBox">
@@ -145,7 +158,7 @@
        <enum>QFrame::Sunken</enum>
       </property>
       <property name="text">
-       <string>-66.5</string>
+       <string>-666</string>
       </property>
       <property name="alignment">
        <set>Qt::AlignCenter</set>