彻底改版2.0

third/3rd_qwt/qwt_abstract_legend.cpp

@@ -0,0 +1,38 @@
+/* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
+ * Qwt Widget Library
+ * Copyright (C) 1997   Josef Wilgen
+ * Copyright (C) 2002   Uwe Rathmann
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the Qwt License, Version 1.0
+ *****************************************************************************/
+
+#include "qwt_abstract_legend.h"
+
+/*!
+  Constructor
+
+  \param parent Parent widget
+*/
+QwtAbstractLegend::QwtAbstractLegend( QWidget *parent ):
+    QFrame( parent )
+{
+}
+
+//! Destructor
+QwtAbstractLegend::~QwtAbstractLegend()
+{
+}
+
+/*!
+   Return the extent, that is needed for elements to scroll
+   the legend ( usually scrollbars ),
+
+   \param orientation Orientation
+   \return Extent of the corresponding scroll element
+*/
+int QwtAbstractLegend::scrollExtent( Qt::Orientation orientation ) const
+{
+    Q_UNUSED( orientation );
+    return 0;
+}