X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/b9dac1ab881565b394759b3a7373228a1014e0d4..cb2f2135b0c8966eb353634d1239a5dc6ba09266:/src/generic/scrlwing.cpp

diff --git a/src/generic/scrlwing.cpp b/src/generic/scrlwing.cpp
index 717187207d..35d85bbefa 100644
--- a/src/generic/scrlwing.cpp
+++ b/src/generic/scrlwing.cpp
@@ -500,11 +500,6 @@ void wxScrollHelper::HandleOnScroll(wxScrollWinEvent& event)
     }
 
     bool needsRefresh = false;
-#ifdef __WXMAC__
-    // OS X blocks on immediate redraws, so make this a refresh
-    if (!wxScrolledWindowHasChildren(m_targetWindow))
-      needsRefresh = true;
-#endif
     int dx = 0,
         dy = 0;
     int orient = event.GetOrientation();
@@ -536,7 +531,12 @@ void wxScrollHelper::HandleOnScroll(wxScrollWinEvent& event)
         // flush all pending repaints before we change m_{x,y}ScrollPosition, as
         // otherwise invalidated area could be updated incorrectly later when
         // ScrollWindow() makes sure they're repainted before scrolling them
+#ifdef __WXMAC__
+        // wxWindowMac is taking care of making sure the update area is correctly
+        // set up, while not forcing an immediate redraw
+#else
         m_targetWindow->Update();
+#endif
     }
 
     if (orient == wxHORIZONTAL)
@@ -613,49 +613,36 @@ int wxScrollHelper::CalcScrollInc(wxScrollWinEvent& event)
 
     if (orient == wxHORIZONTAL)
     {
-        if (m_xScrollPixelsPerLine > 0)
+        if ( m_xScrollPosition + nScrollInc < 0 )
         {
-            if ( m_xScrollPosition + nScrollInc < 0 )
-            {
-                // As -ve as we can go
-                nScrollInc = -m_xScrollPosition;
-            }
-            else // check for the other bound
+            // As -ve as we can go
+            nScrollInc = -m_xScrollPosition;
+        }
+        else // check for the other bound
+        {
+            const int posMax = m_xScrollLines - m_xScrollLinesPerPage;
+            if ( m_xScrollPosition + nScrollInc > posMax )
             {
-                const int posMax = m_xScrollLines - m_xScrollLinesPerPage;
-                if ( m_xScrollPosition + nScrollInc > posMax )
-                {
-                    // As +ve as we can go
-                    nScrollInc = posMax - m_xScrollPosition;
-                }
+                // As +ve as we can go
+                nScrollInc = posMax - m_xScrollPosition;
             }
         }
-        else
-            m_targetWindow->Refresh(true, GetScrollRect());
     }
-    else
+    else // wxVERTICAL
     {
-        if ( m_yScrollPixelsPerLine > 0 )
+        if ( m_yScrollPosition + nScrollInc < 0 )
         {
-            if ( m_yScrollPosition + nScrollInc < 0 )
-            {
-                // As -ve as we can go
-                nScrollInc = -m_yScrollPosition;
-            }
-            else // check for the other bound
-            {
-                const int posMax = m_yScrollLines - m_yScrollLinesPerPage;
-                if ( m_yScrollPosition + nScrollInc > posMax )
-                {
-                    // As +ve as we can go
-                    nScrollInc = posMax - m_yScrollPosition;
-                }
-            }
+            // As -ve as we can go
+            nScrollInc = -m_yScrollPosition;
         }
-        else
+        else // check for the other bound
         {
-            // VZ: why do we do this? (FIXME)
-            m_targetWindow->Refresh(true, GetScrollRect());
+            const int posMax = m_yScrollLines - m_yScrollLinesPerPage;
+            if ( m_yScrollPosition + nScrollInc > posMax )
+            {
+                // As +ve as we can go
+                nScrollInc = posMax - m_yScrollPosition;
+            }
         }
     }
 
@@ -1392,7 +1379,13 @@ bool wxScrolledWindow::Create(wxWindow *parent,
     MacSetClipChildren( true ) ;
 #endif
 
-    bool ok = wxPanel::Create(parent, id, pos, size, style|wxHSCROLL|wxVSCROLL, name);
+    // 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;
+
+    bool ok = wxPanel::Create(parent, id, pos, size, style, name);
 
     return ok;
 }