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authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commitce4a32fe52ef09d8f5ff1dd22c001110902b60a2 (patch)
tree5ac38a06f3dde268dc7927dc155896926aaf7012 /interfaces/khexedit/zoominterface.h
downloadtdelibs-ce4a32fe52ef09d8f5ff1dd22c001110902b60a2.tar.gz
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Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdelibs@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
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+/***************************************************************************
+ zoominterface.h - description
+ -------------------
+ begin : Fri Sep 12 2003
+ copyright : (C) 2003 by Friedrich W. H. Kossebau
+ email : Friedrich.W.H@Kossebau.de
+ ***************************************************************************/
+
+/***************************************************************************
+ * *
+ * This library is free software; you can redistribute it and/or *
+ * modify it under the terms of the GNU Library General Public *
+ * License version 2 as published by the Free Software Foundation. *
+ * *
+ ***************************************************************************/
+
+
+#ifndef ZOOMINTERFACE_H
+#define ZOOMINTERFACE_H
+
+
+namespace KHE
+{
+
+/**
+ * @short A simple interface for zooming
+ *
+ * This interface enables abstract linear zooming.
+ * It operates in sizes of font point size.
+ *
+ * @author Friedrich W. H. Kossebau <Friedrich.W.H@Kossebau.de>
+ * @see createBytesEditWidget(), zoomInterface()
+ * @since 3.2
+ */
+class ZoomInterface
+{
+ public:
+ /** enlarges the display
+ * @param PointInc increment to the display size (in font point size)
+ */
+ virtual void zoomIn( int PointInc ) = 0;
+ /** increases the display size by an arbitrary value, usually 1 font point
+ * @see zoomOut()
+ */
+ virtual void zoomIn() = 0;
+ /** makes the display smaller
+ * @param PointDec decrement to the display size (in font point size)
+ */
+ virtual void zoomOut( int PointDec ) = 0;
+ /** decreases the display size by an arbitrary value, usually 1 font point
+ * @see zoomIn()
+ */
+ virtual void zoomOut() = 0;
+ /** sets the display size
+ * @param PointSize new display size (in font point size)
+ */
+ virtual void zoomTo( int PointSize ) = 0;
+ /** resets the display to the default size */
+ virtual void unZoom() = 0;
+};
+
+
+/** tries to get the zoom interface of t
+ * @return a pointer to the interface, otherwise 0
+ * @author Friedrich W. H. Kossebau <Friedrich.W.H@Kossebau.de>
+ * @since 3.2
+*/
+template<class T>
+ZoomInterface *zoomInterface( T *t )
+{
+ if( !t )
+ return 0;
+
+ return static_cast<ZoomInterface*>( t->qt_cast("KHE::ZoomInterface") );
+}
+
+}
+
+#endif