No real changes, just make wxWindow::CanScroll() virtual.

[wxWidgets.git] / include / wx / generic / scrolwin.h

diff --git a/include/wx/generic/scrolwin.h b/include/wx/generic/scrolwin.h
index 64737702c677b3dffe5c9d8af8ab29cd9347b30d..ca51c09146497e5713ebcf3bcb2e97bedfb0c3f0 100644 (file)
--- a/include/wx/generic/scrolwin.h
+++ b/include/wx/generic/scrolwin.h
@@ -1,107 +1,52 @@
 /////////////////////////////////////////////////////////////////////////////
 // Name:        wx/generic/scrolwin.h
-// Purpose:     wxGenericScrolledWindow class
-// Author:      Julian Smart
-// Modified by:
-// Created:     01/02/97
-// RCS-ID:      $Id$
-// Copyright:   (c) Julian Smart and Markus Holzem
-// Licence:     wxWindows license
+// 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_
 
-#if defined(__GNUG__) && !defined(__APPLE__)
-    #pragma interface "genscrolwin.h"
-#endif
-
-// ----------------------------------------------------------------------------
-// headers and constants
-// ----------------------------------------------------------------------------
-
-#include "wx/window.h"
-#include "wx/panel.h"
-
-WXDLLEXPORT_DATA(extern const wxChar*) wxPanelNameStr;
-
-// default scrolled window style
-#ifndef wxScrolledWindowStyle
-    #define wxScrolledWindowStyle (wxHSCROLL | wxVSCROLL)
-#endif
-
-// avoid triggering this stupid VC++ warning
-#ifdef __VISUALC__
-    #pragma warning(disable:4355) // 'this' used in base member initializer list
-#endif
-
 // ----------------------------------------------------------------------------
-// wxGenericScrolledWindow
+// generic wxScrollHelper implementation
 // ----------------------------------------------------------------------------
 
-class WXDLLEXPORT wxGenericScrolledWindow : public wxPanel,
-                                            public wxScrollHelper
+class WXDLLIMPEXP_CORE wxScrollHelper : public wxScrollHelperBase
 {
 public:
-    wxGenericScrolledWindow() : wxScrollHelper(this) { }
-    wxGenericScrolledWindow(wxWindow *parent,
-                     wxWindowID id = -1,
-                     const wxPoint& pos = wxDefaultPosition,
-                     const wxSize& size = wxDefaultSize,
-                     long style = wxScrolledWindowStyle,
-                     const wxString& name = wxPanelNameStr)
-        : wxScrollHelper(this)
-    {
-        Create(parent, id, pos, size, style, name);
-    }
+    wxScrollHelper(wxWindow *winToScroll);
 
-    virtual ~wxGenericScrolledWindow();
-
-    bool Create(wxWindow *parent,
-                wxWindowID id,
-                const wxPoint& pos = wxDefaultPosition,
-                const wxSize& size = wxDefaultSize,
-                long style = wxScrolledWindowStyle,
-                const wxString& name = wxPanelNameStr);
-
-    virtual void PrepareDC(wxDC& dc) { DoPrepareDC(dc); }
-
-    // lay out the window and its children
-    virtual bool Layout();
-
-    virtual void DoSetVirtualSize(int x, int y);
-
-#if WXWIN_COMPATIBILITY   
-     virtual void GetScrollUnitsPerPage(int *x_page, int *y_page) const;   
-     virtual void CalcUnscrolledPosition(int x, int y, float *xx, float *yy) const;
-     // Need to do this otherwise the compiler gets confuced 
-     // between float and int calls to this function.
-     void CalcUnscrolledPosition(int x, int y, int *xx, int *yy) const
-        { wxScrollHelper::CalcScrolledPosition(x, y, xx, yy); }
-     wxPoint CalcUnscrolledPosition(const wxPoint& pt) const
-        { return wxScrollHelper::CalcScrolledPosition(pt); }
-#endif // WXWIN_COMPATIBILITY
+    // implement base class pure virtuals
+    virtual void AdjustScrollbars();
 
 protected:
-    // this is needed for wxEVT_PAINT processing hack described in
-    // wxScrollHelperEvtHandler::ProcessEvent()
-    void OnPaint(wxPaintEvent& event);
-
-    // we need to return a special WM_GETDLGCODE value to process just the
-    // arrows but let the other navigation characters through
-#ifdef __WXMSW__
-    virtual long MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam);
-#endif // __WXMSW__
+    virtual void DoScroll(int x, int y);
+    virtual void DoShowScrollbars(wxScrollbarVisibility horz,
+                                  wxScrollbarVisibility vert);
 
 private:
-    DECLARE_ABSTRACT_CLASS(wxGenericScrolledWindow)
-    DECLARE_EVENT_TABLE()
+    // 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;
+
+    wxDECLARE_NO_COPY_CLASS(wxScrollHelper);
 };
 
-#ifdef __VISUALC__
-    #pragma warning(default:4355)
-#endif
-
-#endif
-    // _WX_GENERIC_SCROLLWIN_H_
+#endif // _WX_GENERIC_SCROLLWIN_H_