Consistently use std::unique_ptr to life-manage the PIMPL d object

GIT_SILENT

src/kmahjonggbackground.cpp

@@ -67,10 +67,7 @@ KMahjonggBackground::KMahjonggBackground()
     _inited = true;
 }
 
-KMahjonggBackground::~KMahjonggBackground()
-{
-    delete d;
-}
+KMahjonggBackground::~KMahjonggBackground() = default;
 
 bool KMahjonggBackground::loadDefault()
 {

src/kmahjonggbackground.h

@@ -10,6 +10,8 @@
 
 // Qt
 #include <QBrush>
+// Std
+#include <memory>
 
 // LibKMahjongg
 #include "libkmahjongg_export.h"
@@ -36,8 +38,7 @@ class LIBKMAHJONGG_EXPORT KMahjonggBackground
     QString authorProperty(const QString &key) const;
 
  private:
-    friend class KMahjonggBackgroundPrivate;
-    KMahjonggBackgroundPrivate *const d;
+    std::unique_ptr<KMahjonggBackgroundPrivate> const d;
 
     Q_DISABLE_COPY(KMahjonggBackground)
 };

src/kmahjonggconfigdialog.cpp

@@ -34,10 +34,7 @@ KMahjonggConfigDialog::KMahjonggConfigDialog(QWidget * parent, const QString & n
     d->m_config = config;
 }
 
-KMahjonggConfigDialog::~KMahjonggConfigDialog()
-{
-    delete d;
-}
+KMahjonggConfigDialog::~KMahjonggConfigDialog() = default;
 
 void KMahjonggConfigDialog::addTilesetPage()
 {

src/kmahjonggconfigdialog.h

@@ -36,7 +36,7 @@ Q_OBJECT
 
   private:
     friend class KMahjonggConfigDialogPrivate;
-    KMahjonggConfigDialogPrivate *const d;
+    std::unique_ptr<KMahjonggConfigDialogPrivate> const d;
 
     Q_DISABLE_COPY(KMahjonggConfigDialog)
 };

src/kmahjonggtileset.cpp

@@ -86,10 +86,7 @@ KMahjonggTileset::KMahjonggTileset()
 
 // ---------------------------------------------------------
 
-KMahjonggTileset::~KMahjonggTileset()
-{
-    delete d;
-}
+KMahjonggTileset::~KMahjonggTileset() = default;
 
 void KMahjonggTileset::updateScaleInfo(short tilew, short tileh)
 {

src/kmahjonggtileset.h

@@ -55,7 +55,7 @@ protected:
 
   private:
     friend class KMahjonggTilesetPrivate;
-    KMahjonggTilesetPrivate *const d;
+    std::unique_ptr<KMahjonggTilesetPrivate> const d;
 
     Q_DISABLE_COPY(KMahjonggTileset)
 };