GUI: Add Clear-button to log view.

gui/logview.cpp

@@ -20,10 +20,12 @@
 
 LogView::LogView(QWidget *parent)
 {
+    Q_UNUSED(parent);
     mUI.setupUi(this);
     setWindowFlags(Qt::Tool);
 
     connect(mUI.mCloseButton, SIGNAL(clicked()), this, SLOT(CloseButtonClicked()));
+    connect(mUI.mClearButton, SIGNAL(clicked()), this, SLOT(ClearButtonClicked()));
 }
 
 void LogView::AppendLine(const QString &line)
@@ -35,3 +37,8 @@ void LogView::CloseButtonClicked()
 {
     close();
 }
+
+void LogView::ClearButtonClicked()
+{
+    mUI.mLogEdit->clear();
+}

gui/logview.h

@@ -50,6 +50,12 @@ protected slots:
     */
     void CloseButtonClicked();
 
+    /**
+    * @brief Called when clear button is clicked.
+    *
+    */
+    void ClearButtonClicked();
+
 private:
     Ui::LogView mUI;
 };

gui/logview.ui

@@ -42,6 +42,13 @@
        </property>
       </spacer>
      </item>
+     <item>
+      <widget class="QPushButton" name="mClearButton">
+       <property name="text">
+        <string>Clear</string>
+       </property>
+      </widget>
+     </item>
      <item>
       <widget class="QPushButton" name="mCloseButton">
        <property name="text">