add subscribe button to example

3 files changed, 51 insertions, 33 deletions

diff --git a/examples/mqtt/simpleclient/mainwindow.cpp b/examples/mqtt/simpleclient/mainwindow.cpp
index dfd811f..04492de 100644
--- a/examples/mqtt/simpleclient/mainwindow.cpp
+++ b/examples/mqtt/simpleclient/mainwindow.cpp
@@ -16,6 +16,14 @@ MainWindow::MainWindow(QWidget *parent) :
 
     connect(m_client, &QMqttClient::stateChanged, this, &MainWindow::updateLogStateChange);
     connect(m_client, &QMqttClient::disconnected, this, &MainWindow::brokerDisconnected);
+
+    connect(m_client, &QMqttClient::subscribed, this, [this]() {
+        const QString content = QDateTime::currentDateTime().toString()
+                    + QLatin1String("Subscription Succeeded")
+                + QLatin1Char('\n');
+        ui->editLog->insertPlainText(content);
+    });
+
     connect(ui->lineEditHost, &QLineEdit::textChanged, m_client, &QMqttClient::setHostname);
     connect(ui->spinBoxPort, SIGNAL(valueChanged(int)), this, SLOT(setClientPort(int)));
     updateLogStateChange();
@@ -71,3 +79,8 @@ void MainWindow::on_buttonPublish_clicked()
 {
     m_client->publish(ui->lineEditTopic->text(), ui->lineEditMessage->text());
 }
+
+void MainWindow::on_buttonSubscribe_clicked()
+{
+    m_client->subscribe(ui->lineEditTopic->text());
+}
diff --git a/examples/mqtt/simpleclient/mainwindow.h b/examples/mqtt/simpleclient/mainwindow.h
index 63a4924..0de0962 100644
--- a/examples/mqtt/simpleclient/mainwindow.h
+++ b/examples/mqtt/simpleclient/mainwindow.h
@@ -27,6 +27,8 @@ private slots:
 
     void on_buttonPublish_clicked();
 
+    void on_buttonSubscribe_clicked();
+
 private:
     Ui::MainWindow *ui;
     QMqttClient *m_client;
diff --git a/examples/mqtt/simpleclient/mainwindow.ui b/examples/mqtt/simpleclient/mainwindow.ui
index 0eec0cc..8efcb58 100644
--- a/examples/mqtt/simpleclient/mainwindow.ui
+++ b/examples/mqtt/simpleclient/mainwindow.ui
@@ -62,40 +62,43 @@
      </layout>
     </item>
     <item>
-     <layout class="QHBoxLayout" name="horizontalLayout_4">
-      <item>
-       <layout class="QFormLayout" name="formLayout_2">
-        <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_4">
-          <property name="text">
-           <string>Message:</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>
-       </layout>
+     <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>
+      <item row="0" column="1">
+       <widget class="QLineEdit" name="lineEditTopic">
+        <property name="text">
+         <string>qtmqtt/topic1</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="0">
+       <widget class="QLabel" name="label_4">
+        <property name="text">
+         <string>Message:</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="1" column="2">
        <widget class="QPushButton" name="buttonPublish">
         <property name="text">
          <string>Publish</string>