X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/e8cfff879ef8f5fdf7323010c244cfb8cfcedc84..9c7669d7a4ecf5fee714dccc0718165b871beca1:/src/common/wincmn.cpp

diff --git a/src/common/wincmn.cpp b/src/common/wincmn.cpp
index fd9f090d5e..7d16c18b26 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 =
@@ -744,6 +746,13 @@ bool wxWindowBase::Enable(bool enable)
         return false;
     }
 }
+
+bool wxWindowBase::IsShownOnScreen() const
+{
+    return IsShown() &&
+           (GetParent() == NULL || GetParent()->IsShownOnScreen());
+}
+
 // ----------------------------------------------------------------------------
 // RTTI
 // ----------------------------------------------------------------------------
@@ -1140,12 +1149,12 @@ wxRect wxWindowBase::GetUpdateClientRect() const
     return rectUpdate;
 }
 
-bool wxWindowBase::IsExposed(int x, int y) const
+bool wxWindowBase::DoIsExposed(int x, int y) const
 {
     return m_updateRegion.Contains(x, y) != wxOutRegion;
 }
 
-bool wxWindowBase::IsExposed(int x, int y, int w, int h) const
+bool wxWindowBase::DoIsExposed(int x, int y, int w, int h) const
 {
     return m_updateRegion.Contains(x, y, w, h) != wxOutRegion;
 }
@@ -2980,3 +2989,21 @@ wxAccStatus wxWindowAccessible::GetSelections(wxVariant* WXUNUSED(selections))
 }
 
 #endif // wxUSE_ACCESSIBILITY
+
+// ----------------------------------------------------------------------------
+// RTL support
+// ----------------------------------------------------------------------------
+
+wxCoord
+wxWindowBase::AdjustForLayoutDirection(wxCoord x,
+                                       wxCoord width,
+                                       wxCoord widthTotal) const
+{
+    if ( GetLayoutDirection() == wxLayout_RightToLeft )
+    {
+        x = widthTotal - x - width;
+    }
+
+    return x;
+}
+