QskSkinStateChanger introduced

src/controls/QskSkinStateChanger.h

@@ -0,0 +1,38 @@
+/******************************************************************************
+ * QSkinny - Copyright (C) 2016 Uwe Rathmann
+ * This file may be used under the terms of the QSkinny License, Version 1.0
+ *****************************************************************************/
+
+#ifndef QSK_SKIN_STATE_CHANGER_H
+#define QSK_SKIN_STATE_CHANGER_H
+
+#include "QskAspect.h"
+#include "QskSkinnable.h"
+
+class QskSkinStateChanger
+{
+  public:
+    QskSkinStateChanger( const QskSkinnable*, QskAspect::States );
+    ~QskSkinStateChanger();
+
+  private:
+    QskSkinnable* m_skinnable;
+    QskAspect::States m_oldStates;
+};
+
+inline QskSkinStateChanger::QskSkinStateChanger(
+        const QskSkinnable* skinnable, QskAspect::States states )
+    : m_skinnable( const_cast< QskSkinnable* >( skinnable ) )
+    , m_oldStates( skinnable->skinStates() )
+{
+    if ( states )
+        m_skinnable->replaceSkinStates( m_oldStates | states );
+}
+
+inline QskSkinStateChanger::~QskSkinStateChanger()
+{
+    if ( m_oldStates != m_skinnable->skinStates() )
+        m_skinnable->replaceSkinStates( m_oldStates );
+}
+
+#endif

src/src.pro

@@ -179,6 +179,7 @@ HEADERS += \
     controls/QskSkinHintTable.h \
     controls/QskSkinHintTableEditor.h \
     controls/QskSkinManager.h \
+    controls/QskSkinStateChanger.h \
     controls/QskSkinTransition.h \
     controls/QskSkinlet.h \
     controls/QskSkinnable.h \