initial commit

Signed-off-by: Peter Siegmund <mars3142@noreply.mars3142.dev>

libs/wxWidgets-3.3.1/include/wx/generic/scrolwin.h

@@ -0,0 +1,56 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        wx/generic/scrolwin.h
+// Purpose:     generic wxScrollHelper
+// Author:      Vadim Zeitlin
+// Created:     2008-12-24 (replacing old file with the same name)
+// Copyright:   (c) 2008 Vadim Zeitlin <vadim@wxwidgets.org>
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+#ifndef _WX_GENERIC_SCROLLWIN_H_
+#define _WX_GENERIC_SCROLLWIN_H_
+
+#include "wx/recguard.h"
+
+// ----------------------------------------------------------------------------
+// generic wxScrollHelper implementation
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_CORE wxScrollHelper : public wxScrollHelperBase
+{
+public:
+    wxScrollHelper(wxWindow *winToScroll);
+
+    // implement base class pure virtuals
+    virtual void AdjustScrollbars() override;
+    virtual bool IsScrollbarShown(int orient) const override;
+
+protected:
+    virtual void DoScroll(int x, int y) override;
+    virtual void DoShowScrollbars(wxScrollbarVisibility horz,
+                                  wxScrollbarVisibility vert) override;
+
+private:
+    // helper of AdjustScrollbars(): does the work for the single scrollbar
+    //
+    // notice that the parameters passed by non-const references are modified
+    // by this function
+    void DoAdjustScrollbar(int orient,
+                           int clientSize,
+                           int virtSize,
+                           int pixelsPerUnit,
+                           int& scrollUnits,
+                           int& scrollPosition,
+                           int& scrollLinesPerPage,
+                           wxScrollbarVisibility visibility);
+
+
+    wxScrollbarVisibility m_xVisibility,
+                          m_yVisibility;
+    wxRecursionGuardFlag m_adjustScrollFlagReentrancy;
+
+    wxDECLARE_NO_COPY_CLASS(wxScrollHelper);
+};
+
+#endif // _WX_GENERIC_SCROLLWIN_H_
+