add some doc

src/libsnore/settingsdialog.cpp

@@ -119,11 +119,7 @@ void SettingsDialog::save()
 
 void SettingsDialog::setVisible(bool b)
 {
-    if (b) {
     load();
-    } else {
-        save();
-    }
     QWidget::setVisible(b);
 }
 

src/libsnore/settingsdialog.h

@@ -24,6 +24,7 @@
 
 class QAbstractButton;
 
+
 namespace Snore
 {
 class PluginSettingsWidget;
@@ -36,20 +37,36 @@ class SettingsDialog;
 
 namespace Snore
 {
+
+/**
+ * A QWidget providing acces to the settings of the plugins.
+ * If your application does not offer a ui you might call snore-settings insetad.
+ */
+
 class SNORE_EXPORT SettingsDialog : public QWidget
 {
     Q_OBJECT
 
 public:
-    explicit SettingsDialog(QWidget *parent = 0);
+    explicit SettingsDialog(QWidget *parent = nullptr);
     ~SettingsDialog();
 
-    //TODO: move to private header
+    /**
+     * \todo move to private header or cleanup
+     */
     void initTabs();
 
 public Q_SLOTS:
     void setVisible(bool b) override;
+
+    /**
+     * Save the settings.
+     */
     void accept();
+
+    /**
+     * Reset the settings.
+     */
     void reset();
 
 private Q_SLOTS: