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

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

diff --git a/include/wx/scrolwin.h b/include/wx/scrolwin.h
index f1ca429ffffbd89dbf061859fab9bfb61377c5f7..637d63b320c03f48f0fda1f204e295e7de5689c1 100644 (file)
--- a/include/wx/scrolwin.h
+++ b/include/wx/scrolwin.h
@@ -1,10 +1,9 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        include/wx/scrolwin.h
+// Name:        wx/scrolwin.h
 // Purpose:     wxScrolledWindow, wxScrolledControl and wxScrollHelper
 // Author:      Vadim Zeitlin
 // Modified by:
 // Created:     30.08.00
-// RCS-ID:      $Id$
 // Copyright:   (c) 2000 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
@@ -106,6 +105,10 @@ public:
     // Clear() is necessary. If false, the whole canvas is invalidated and a
     // Clear() is necessary. Disable for when the scroll increment is used to
     // actually scroll a non-constant distance
+    //
+    // Notice that calling this method with a false argument doesn't disable
+    // scrolling the window in this direction, it just changes the mechanism by
+    // which it is implemented to not use wxWindow::ScrollWindow().
     virtual void EnableScrolling(bool x_scrolling, bool y_scrolling);
 
     // Disable use of keyboard keys for scrolling. By default cursor movement
@@ -252,10 +255,6 @@ protected:
     // delete the event handler we installed
     void DeleteEvtHandler();
 
-    // calls wxScrollHelperEvtHandler::ResetDrawnFlag(), see explanation
-    // in wxScrollHelperEvtHandler::ProcessEvent()
-    void ResetDrawnFlag();
-
     // this function should be overridden to return the size available for
     // m_targetWindow inside m_win of the given size
     //
@@ -283,6 +282,10 @@ protected:
 
     wxTimer              *m_timerAutoScroll;
 
+    // The number of pixels to scroll in horizontal and vertical directions
+    // respectively.
+    //
+    // If 0, means that the scrolling in the given direction is disabled.
     int                   m_xScrollPixelsPerLine;
     int                   m_yScrollPixelsPerLine;
     int                   m_xScrollPosition;
@@ -376,24 +379,38 @@ public:
         this->MacSetClipChildren(true);
 #endif
 
-        this->Connect(wxEVT_PAINT, wxPaintEventHandler(wxScrolled::OnPaint));
-
         // by default, we're scrollable in both directions (but if one of the
         // styles is specified explicitly, we shouldn't add the other one
         // automatically)
         if ( !(style & (wxHSCROLL | wxVSCROLL)) )
             style |= wxHSCROLL | wxVSCROLL;
 
+#ifdef __WXOSX__
+        bool retval = T::Create(parent, winid, pos, size, style, name);
+        if ( retval && (style & wxALWAYS_SHOW_SB) )
+            ShowScrollbars(wxSHOW_SB_ALWAYS, wxSHOW_SB_ALWAYS);
+        return retval;
+#else
+        if ( style & wxALWAYS_SHOW_SB )
+            ShowScrollbars(wxSHOW_SB_ALWAYS, wxSHOW_SB_ALWAYS);
+
         return T::Create(parent, winid, pos, size, style, name);
+#endif
     }
 
+#ifdef __WXMSW__
     // we need to return a special WM_GETDLGCODE value to process just the
     // arrows but let the other navigation characters through
-#ifdef __WXMSW__
     virtual WXLRESULT MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
     {
         return FilterMSWWindowProc(nMsg, T::MSWWindowProc(nMsg, wParam, lParam));
     }
+
+    // Take into account the scroll origin.
+    virtual void MSWAdjustBrushOrg(int* xOrg, int* yOrg) const
+    {
+        CalcUnscrolledPosition(*xOrg, *yOrg, xOrg, yOrg);
+    }
 #endif // __WXMSW__
 
     WX_FORWARD_TO_SCROLL_HELPER()
@@ -405,16 +422,6 @@ protected:
     }
 
 private:
-    // this is needed for wxEVT_PAINT processing hack described in
-    // wxScrollHelperEvtHandler::ProcessEvent()
-    void OnPaint(wxPaintEvent& event)
-    {
-        // the user code didn't really draw the window if we got here, so set
-        // this flag to try to call OnDraw() later
-        ResetDrawnFlag();
-        event.Skip();
-    }
-
     // VC++ 6 gives warning for the declaration of template member function
     // without definition
 #ifndef __VISUALC6__