Add support for QoS Level 1

On subscription and message side.

4 files changed, 188 insertions, 101 deletions

diff --git a/examples/mqtt/subscriptions/mainwindow.cpp b/examples/mqtt/subscriptions/mainwindow.cpp
index 33e54be..d125297 100644
--- a/examples/mqtt/subscriptions/mainwindow.cpp
+++ b/examples/mqtt/subscriptions/mainwindow.cpp
@@ -90,12 +90,12 @@ void MainWindow::setClientPort(int p)
 
 void MainWindow::on_buttonPublish_clicked()
 {
-    m_client->publish(ui->lineEditTopic->text(), ui->lineEditMessage->text().toUtf8());
+    m_client->publish(ui->lineEditTopic->text(), ui->lineEditMessage->text().toUtf8(), ui->spinQoS_2->text().toUInt());
 }
 
 void MainWindow::on_buttonSubscribe_clicked()
 {
-    auto subscription = m_client->subscribe(ui->lineEditTopic->text());
+    auto subscription = m_client->subscribe(ui->lineEditTopic->text(), ui->spinQoS->text().toUInt());
     auto subWindow = new SubscriptionWindow(subscription);
     subWindow->setWindowTitle(subscription->topic());
     subWindow->show();
diff --git a/examples/mqtt/subscriptions/mainwindow.ui b/examples/mqtt/subscriptions/mainwindow.ui
index b67b6c2..0c245a6 100644
--- a/examples/mqtt/subscriptions/mainwindow.ui
+++ b/examples/mqtt/subscriptions/mainwindow.ui
@@ -6,113 +6,182 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>629</width>
-    <height>595</height>
+    <width>349</width>
+    <height>666</height>
    </rect>
   </property>
   <property name="windowTitle">
    <string>MainWindow</string>
   </property>
   <widget class="QWidget" name="centralWidget">
-   <layout class="QVBoxLayout" name="verticalLayout">
+   <layout class="QVBoxLayout" name="verticalLayout_4">
     <item>
-     <layout class="QHBoxLayout" name="horizontalLayout">
-      <item>
-       <layout class="QFormLayout" name="formLayout">
-        <item row="0" column="0">
-         <widget class="QLabel" name="label">
-          <property name="text">
-           <string>Host:</string>
-          </property>
-         </widget>
-        </item>
-        <item row="0" column="1">
-         <widget class="QLineEdit" name="lineEditHost">
-          <property name="text">
-           <string>hostprocess.de</string>
-          </property>
-         </widget>
-        </item>
-        <item row="2" column="0">
-         <widget class="QLabel" name="label_2">
-          <property name="text">
-           <string>Port:</string>
-          </property>
-         </widget>
-        </item>
-        <item row="2" column="1">
-         <widget class="QSpinBox" name="spinBoxPort">
-          <property name="maximum">
-           <number>99999</number>
-          </property>
-          <property name="value">
-           <number>1883</number>
-          </property>
-         </widget>
-        </item>
-       </layout>
-      </item>
-      <item>
-       <widget class="QPushButton" name="buttonConnect">
-        <property name="text">
-         <string>Connect</string>
-        </property>
-       </widget>
-      </item>
-     </layout>
+     <widget class="QGroupBox" name="groupBox_3">
+      <property name="title">
+       <string>Connection</string>
+      </property>
+      <layout class="QVBoxLayout" name="verticalLayout_2">
+       <item>
+        <layout class="QGridLayout" name="gridLayout_2">
+         <item row="0" column="0">
+          <widget class="QLabel" name="label">
+           <property name="text">
+            <string>Host:</string>
+           </property>
+          </widget>
+         </item>
+         <item row="0" column="1">
+          <widget class="QLineEdit" name="lineEditHost">
+           <property name="text">
+            <string>hostprocess.de</string>
+           </property>
+          </widget>
+         </item>
+         <item row="1" column="0">
+          <widget class="QLabel" name="label_2">
+           <property name="text">
+            <string>Port:</string>
+           </property>
+          </widget>
+         </item>
+         <item row="1" column="1">
+          <widget class="QSpinBox" name="spinBoxPort">
+           <property name="maximum">
+            <number>99999</number>
+           </property>
+           <property name="value">
+            <number>1883</number>
+           </property>
+          </widget>
+         </item>
+         <item row="0" column="2">
+          <widget class="QPushButton" name="buttonConnect">
+           <property name="text">
+            <string>Connect</string>
+           </property>
+          </widget>
+         </item>
+         <item row="1" column="2">
+          <widget class="QPushButton" name="buttonPing">
+           <property name="text">
+            <string>Ping</string>
+           </property>
+          </widget>
+         </item>
+        </layout>
+       </item>
+      </layout>
+     </widget>
     </item>
     <item>
-     <layout class="QGridLayout" name="gridLayout">
-      <item row="0" column="1">
-       <widget class="QLineEdit" name="lineEditTopic">
-        <property name="text">
-         <string>qtmqtt/topic1</string>
-        </property>
-       </widget>
-      </item>
-      <item row="0" column="0">
-       <widget class="QLabel" name="label_3">
-        <property name="text">
-         <string>Topic:</string>
-        </property>
-       </widget>
-      </item>
-      <item row="1" column="0">
-       <widget class="QLabel" name="label_4">
-        <property name="text">
-         <string>Message:</string>
-        </property>
-       </widget>
-      </item>
-      <item row="1" column="2">
-       <widget class="QPushButton" name="buttonPublish">
-        <property name="text">
-         <string>Publish</string>
-        </property>
-       </widget>
-      </item>
-      <item row="0" column="2">
-       <widget class="QPushButton" name="buttonSubscribe">
-        <property name="text">
-         <string>Subscribe</string>
-        </property>
-       </widget>
-      </item>
-      <item row="1" column="1">
-       <widget class="QLineEdit" name="lineEditMessage">
-        <property name="text">
-         <string>This is a test message</string>
-        </property>
-       </widget>
-      </item>
-      <item row="2" column="2">
-       <widget class="QPushButton" name="buttonPing">
-        <property name="text">
-         <string>Ping</string>
-        </property>
-       </widget>
-      </item>
-     </layout>
+     <widget class="QGroupBox" name="groupBox_2">
+      <property name="title">
+       <string>Subscriptions</string>
+      </property>
+      <layout class="QVBoxLayout" name="verticalLayout">
+       <item>
+        <layout class="QGridLayout" name="gridLayout">
+         <item row="0" column="0">
+          <widget class="QLabel" name="label_3">
+           <property name="text">
+            <string>Topic:</string>
+           </property>
+          </widget>
+         </item>
+         <item row="0" column="1">
+          <widget class="QLineEdit" name="lineEditTopic">
+           <property name="text">
+            <string>qtmqtt/topic1</string>
+           </property>
+          </widget>
+         </item>
+         <item row="1" column="0">
+          <widget class="QLabel" name="label_5">
+           <property name="text">
+            <string>QoS:</string>
+           </property>
+          </widget>
+         </item>
+         <item row="1" column="1">
+          <widget class="QSpinBox" name="spinQoS">
+           <property name="maximum">
+            <number>2</number>
+           </property>
+          </widget>
+         </item>
+         <item row="1" column="2">
+          <widget class="QPushButton" name="buttonSubscribe">
+           <property name="text">
+            <string>Subscribe</string>
+           </property>
+          </widget>
+         </item>
+        </layout>
+       </item>
+      </layout>
+     </widget>
+    </item>
+    <item>
+     <widget class="QGroupBox" name="groupBox_4">
+      <property name="title">
+       <string>Messages</string>
+      </property>
+      <layout class="QVBoxLayout" name="verticalLayout_3">
+       <item>
+        <layout class="QFormLayout" name="formLayout">
+         <item row="0" column="0">
+          <widget class="QLabel" name="label_4">
+           <property name="text">
+            <string>Content:</string>
+           </property>
+          </widget>
+         </item>
+         <item row="0" column="1">
+          <widget class="QLineEdit" name="lineEditMessage">
+           <property name="text">
+            <string>This is a test message</string>
+           </property>
+          </widget>
+         </item>
+         <item row="1" column="0">
+          <widget class="QLabel" name="label_6">
+           <property name="text">
+            <string>QoS:</string>
+           </property>
+          </widget>
+         </item>
+         <item row="1" column="1">
+          <widget class="QSpinBox" name="spinQoS_2">
+           <property name="maximum">
+            <number>2</number>
+           </property>
+          </widget>
+         </item>
+         <item row="2" column="0">
+          <widget class="QLabel" name="label_7">
+           <property name="text">
+            <string>Retain:</string>
+           </property>
+          </widget>
+         </item>
+         <item row="2" column="1">
+          <widget class="QCheckBox" name="checkBoxRetain">
+           <property name="text">
+            <string/>
+           </property>
+          </widget>
+         </item>
+        </layout>
+       </item>
+       <item>
+        <widget class="QPushButton" name="buttonPublish">
+         <property name="text">
+          <string>Publish</string>
+         </property>
+        </widget>
+       </item>
+      </layout>
+     </widget>
     </item>
     <item>
      <widget class="QGroupBox" name="groupBox">
@@ -157,7 +226,7 @@
     <rect>
      <x>0</x>
      <y>0</y>
-     <width>629</width>
+     <width>349</width>
      <height>21</height>
     </rect>
    </property>
diff --git a/examples/mqtt/subscriptions/subscriptionwindow.cpp b/examples/mqtt/subscriptions/subscriptionwindow.cpp
index 19bb31c..f9c6ecb 100644
--- a/examples/mqtt/subscriptions/subscriptionwindow.cpp
+++ b/examples/mqtt/subscriptions/subscriptionwindow.cpp
@@ -9,9 +9,13 @@ SubscriptionWindow::SubscriptionWindow(QSharedPointer<QMqttSubscription> &sub, Q
     ui->setupUi(this);
 
     ui->labelSub->setText(m_sub->topic());
+    ui->labelQoS->setText(QString::number(sub->qos()));
     updateStatus(m_sub->state());
     connect(m_sub.data(), &QMqttSubscription::messageReceived, this, &SubscriptionWindow::updateMessage);
     connect(m_sub.data(), &QMqttSubscription::stateChanged, this, &SubscriptionWindow::updateStatus);
+    connect(m_sub.data(), &QMqttSubscription::qosChanged, [this](quint8 qos) {
+        ui->labelQoS->setText(QString::number(qos));
+    });
     connect(ui->pushButton, &QAbstractButton::clicked, m_sub.data(), &QMqttSubscription::unsubscribe);
 }
 
diff --git a/examples/mqtt/subscriptions/subscriptionwindow.ui b/examples/mqtt/subscriptions/subscriptionwindow.ui
index 46ca75f..acf6591 100644
--- a/examples/mqtt/subscriptions/subscriptionwindow.ui
+++ b/examples/mqtt/subscriptions/subscriptionwindow.ui
@@ -44,6 +44,20 @@
        </property>
       </widget>
      </item>
+     <item row="2" column="0">
+      <widget class="QLabel" name="label_3">
+       <property name="text">
+        <string>QoS:</string>
+       </property>
+      </widget>
+     </item>
+     <item row="2" column="1">
+      <widget class="QLabel" name="labelQoS">
+       <property name="text">
+        <string>TextLabel</string>
+       </property>
+      </widget>
+     </item>
     </layout>
    </item>
    <item>