[tracking] Switch out Radio for CheckBox

- The Radio's are replaced by CheckBoxes and some logic, so
  that different tracking styles can be enabled independently.
  None of the settings end up in the Config yet, though.

src/modules/tracking/TrackingPage.cpp

@@ -40,13 +40,15 @@ TrackingPage::TrackingPage( Config* config, QWidget* parent )
     ui->setupUi( this );
     CALAMARES_RETRANSLATE_SLOT( &TrackingPage::retranslate );
 
-    QButtonGroup* group = new QButtonGroup( this );
-    group->setExclusive( true );
-    group->addButton( ui->noneRadio );
-    group->addButton( ui->installRadio );
-    group->addButton( ui->machineRadio );
-    group->addButton( ui->userRadio );
-    ui->noneRadio->setChecked( true );
+    ui->noneCheckBox->setChecked( true );
+    connect( ui->noneCheckBox, &QCheckBox::stateChanged, this, &TrackingPage::noneChecked );
+    connect( ui->installCheckBox, &QCheckBox::stateChanged, this, &TrackingPage::otherChecked );
+    connect( ui->machineCheckBox, &QCheckBox::stateChanged, this, &TrackingPage::otherChecked );
+    connect( ui->userCheckBox, &QCheckBox::stateChanged, this, &TrackingPage::otherChecked );
+
+    connect( ui->installCheckBox, &QCheckBox::stateChanged, [ this ]( int s ) { cDebug() << "Checkbox install changed" << s; } );
+    connect( config->installTracking(), &TrackingStyleConfig::trackingChanged, [ config ]() { cDebug() <<
+    "Install tracking changed" << config->installTracking()->isEnabled(); } ) ;
 
     connect( config, &Config::generalPolicyChanged, [ this ]( const QString& url ) {
         this->ui->generalPolicyLabel->setVisible( !url.isEmpty() );
@@ -85,30 +87,35 @@ TrackingPage::retranslate()
             .arg( product ) );
 }
 
-
-void
-TrackingPage::setTrackingLevel( TrackingType t )
+void TrackingPage::noneChecked(int state)
 {
-    QRadioButton* button = nullptr;
-
-    switch ( t )
+    if ( state )
     {
-    case TrackingType::NoTracking:
-        button = ui->noneRadio;
-        break;
-    case TrackingType::InstallTracking:
-        button = ui->installRadio;
-        break;
-    case TrackingType::MachineTracking:
-        button = ui->machineRadio;
-        break;
-    case TrackingType::UserTracking:
-        button = ui->userRadio;
-        break;
+        cDebug() << "Unchecking all due to none box";
+        ui->installCheckBox->setChecked( false );
+        ui->machineCheckBox->setChecked( false );
+        ui->userCheckBox->setChecked( false );
     }
+}
 
-    if ( button != nullptr )
+void TrackingPage::otherChecked(int state)
+{
+    cDebug() << "Other checked" << state;
+    if ( state )
     {
-        button->setChecked( true );
+        // Can't have none checked, if another one is
+        ui->noneCheckBox->setChecked( false );
+    }
+    else
+    {
+        if ( ui->installCheckBox->isChecked()  || ui->machineCheckBox->isChecked() || ui->userCheckBox->isChecked() )
+        {
+            // One of them is still checked, leave *none* alone
+            ;
+        }
+        else
+        {
+            ui->noneCheckBox->setChecked( true );
+        }
     }
 }

src/modules/tracking/TrackingPage.h

@@ -37,12 +37,23 @@ class TrackingPage : public QWidget
 public:
     explicit TrackingPage( Config* config, QWidget* parent = nullptr );
 
-    ///@brief Select one of the four levels by name
-    void setTrackingLevel( TrackingType t );
-
 public Q_SLOTS:
     void retranslate();
 
+    /** @brief When the *no tracking* checkbox is changed
+     *
+     * @p state will be non-zero when the box is checked; this
+     * **unchecks** all the other boxes.
+     */
+    void noneChecked( int state );
+
+    /** @brief Some other checkbox changed
+     *
+     * This may check the *none* button if all the others are
+     * now unchecked.
+     */
+    void otherChecked( int state );
+
 private:
     Ui::TrackingPage* ui;
 };

src/modules/tracking/page_trackingstep.ui

@@ -32,7 +32,7 @@ margin-left: 2em;</string>
     <widget class="QWidget" name="noneGroup" native="true">
      <layout class="QHBoxLayout" name="noneLayout">
       <item>
-       <widget class="QRadioButton" name="noneRadio">
+       <widget class="QCheckBox" name="noneCheckBox">
         <property name="text">
          <string/>
         </property>
@@ -83,7 +83,7 @@ margin-left: 2em;</string>
     <widget class="QWidget" name="installGroup" native="true">
      <layout class="QHBoxLayout" name="installLayout">
       <item>
-       <widget class="QRadioButton" name="installRadio">
+       <widget class="QCheckBox" name="installCheckBox">
         <property name="text">
          <string/>
         </property>
@@ -145,7 +145,7 @@ margin-left: 2em;</string>
     <widget class="QWidget" name="machineGroup" native="true">
      <layout class="QHBoxLayout" name="machineLayout">
       <item>
-       <widget class="QRadioButton" name="machineRadio">
+       <widget class="QCheckBox" name="machineCheckBox">
         <property name="text">
          <string/>
         </property>
@@ -207,7 +207,7 @@ margin-left: 2em;</string>
     <widget class="QWidget" name="userGroup" native="true">
      <layout class="QHBoxLayout" name="userLayout">
       <item>
-       <widget class="QRadioButton" name="userRadio">
+       <widget class="QCheckBox" name="userCheckBox">
         <property name="text">
          <string/>
         </property>