From f4fe2f20523104bb8b45c1112adfc9e60aa5695b Mon Sep 17 00:00:00 2001
From: Robert Roebling <robert@roebling.de>
Date: Wed, 13 Sep 2006 22:18:24 +0000
Subject: [PATCH]   Add GetScrollHelper() to wxWindow.   Let wxScrollHelper set
 the underlying field itself.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@41205 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 include/wx/window.h      | 6 ++++++
 src/common/wincmn.cpp    | 2 ++
 src/generic/scrlwing.cpp | 2 ++
 3 files changed, 10 insertions(+)

diff --git a/include/wx/window.h b/include/wx/window.h
index c7183ecabb..82b313d4b8 100644
--- a/include/wx/window.h
+++ b/include/wx/window.h
@@ -65,6 +65,7 @@ class WXDLLEXPORT wxSizer;
 class WXDLLEXPORT wxToolTip;
 class WXDLLEXPORT wxWindowBase;
 class WXDLLEXPORT wxWindow;
+class WXDLLEXPORT wxScrollHelper;
 
 #if wxUSE_ACCESSIBILITY
 class WXDLLEXPORT wxAccessible;
@@ -343,6 +344,9 @@ public:
             *h = s.y;
     }
 
+    void SetScrollHelper( wxScrollHelper *sh )   { m_scrollHelper = sh; }
+    wxScrollHelper *GetScrollHelper()            { return m_scrollHelper; }
+
         // reset the cached best size value so it will be recalculated the
         // next time it is needed.
     void InvalidateBestSize();
@@ -1242,6 +1246,8 @@ protected:
     // Virtual size (scrolling)
     wxSize                m_virtualSize;
 
+    wxScrollHelper       *m_scrollHelper;
+
     int                   m_minVirtualWidth;    // VirtualSizeHints
     int                   m_minVirtualHeight;
     int                   m_maxVirtualWidth;
diff --git a/src/common/wincmn.cpp b/src/common/wincmn.cpp
index 9d0b6f4582..47983f7274 100644
--- a/src/common/wincmn.cpp
+++ b/src/common/wincmn.cpp
@@ -200,6 +200,8 @@ wxWindowBase::wxWindowBase()
 
     m_virtualSize = wxDefaultSize;
 
+    m_scrollHelper = (wxScrollHelper *) NULL;
+
     m_minVirtualWidth =
     m_maxVirtualWidth = wxDefaultCoord;
     m_minVirtualHeight =
diff --git a/src/generic/scrlwing.cpp b/src/generic/scrlwing.cpp
index e05ecbda17..b6646136f1 100644
--- a/src/generic/scrlwing.cpp
+++ b/src/generic/scrlwing.cpp
@@ -311,6 +311,8 @@ wxScrollHelper::wxScrollHelper(wxWindow *win)
     m_handler = NULL;
 
     m_win = win;
+    
+    m_win->SetScrollHelper( this );
 
     // by default, the associated window is also the target window
     DoSetTargetWindow(win);