X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/9bb3f212e26b4685f0c6ed7281d50b658ecc1491..5a2c086adf6d7c6bba22fcbd57b0958fdc5723a0:/src/generic/vscroll.cpp

diff --git a/src/generic/vscroll.cpp b/src/generic/vscroll.cpp
index 248ea31c66..50bb4c1c6d 100644
--- a/src/generic/vscroll.cpp
+++ b/src/generic/vscroll.cpp
@@ -2,7 +2,7 @@
 // Name:        src/generic/vscroll.cpp
 // Purpose:     wxVScrolledWindow implementation
 // Author:      Vadim Zeitlin
-// Modified by: Brad Anderson
+// Modified by: Brad Anderson, David Warkentin
 // Created:     30.05.03
 // RCS-ID:      $Id$
 // Copyright:   (c) 2003 Vadim Zeitlin <vadim@wxwindows.org>
@@ -157,6 +157,7 @@ wxVarScrollHelperBase::wxVarScrollHelperBase(wxWindow *win)
     m_win =
     m_targetWindow = (wxWindow *)NULL;
 
+    m_physicalScrolling = true;
     m_handler = NULL;
 
     m_win = win;
@@ -591,8 +592,8 @@ bool wxVarScrollHelperBase::DoScrollToUnit(size_t unit)
     // finally refresh the display -- but only redraw as few units as possible
     // to avoid flicker.  We can't do this if we have children because they
     // won't be scrolled
-    if ( m_targetWindow->GetChildren().empty() &&
-         GetVisibleBegin() >= unitLastOld || GetVisibleEnd() <= unitFirstOld )
+    if ( (m_targetWindow->GetChildren().empty() &&
+         GetVisibleBegin() >= unitLastOld) || GetVisibleEnd() <= unitFirstOld )
     {
         // the simplest case: we don't have any old units left, just redraw
         // everything
@@ -600,7 +601,12 @@ bool wxVarScrollHelperBase::DoScrollToUnit(size_t unit)
     }
     else // scroll the window
     {
+        // Avoid scrolling visible parts of the screen on Mac
+#ifdef __WXMAC__
+        if (m_physicalScrolling && m_targetWindow->IsShownOnScreen())
+#else
         if ( m_physicalScrolling )
+#endif
         {
             wxCoord dx = 0,
                     dy = GetUnitsSize(GetVisibleBegin(), unitFirstOld);
@@ -963,7 +969,20 @@ wxCoord wxVarVScrollLegacyAdaptor::OnGetLineHeight(size_t WXUNUSED(n)) const
     return -1;
 }
 
-void wxVarVScrollLegacyAdaptor::OnGetLinesHint( size_t WXUNUSED(lineMin), size_t WXUNUSED(lineMax)) const
-{ }
+void wxVarVScrollLegacyAdaptor::OnGetLinesHint(size_t WXUNUSED(lineMin),
+                                               size_t WXUNUSED(lineMax)) const
+{
+}
 
-#endif
+wxCoord wxVarVScrollLegacyAdaptor::OnGetRowHeight(size_t n) const
+{
+    return OnGetLineHeight(n);
+}
+
+void wxVarVScrollLegacyAdaptor::OnGetRowsHeightHint(size_t rowMin,
+                                                    size_t rowMax) const
+{
+    OnGetLinesHint(rowMin, rowMax);
+}
+
+#endif // WXWIN_COMPATIBILITY_2_8