adding scroll wheel support

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

diff --git a/include/wx/dcbuffer.h b/include/wx/dcbuffer.h
index 0f4e896d9fe8aa4c3609ed11dabc7eb6e0afcfc3..203f7cd1a38c93a7aef6be8c9718a7caf3fe71e2 100644 (file)
--- a/include/wx/dcbuffer.h
+++ b/include/wx/dcbuffer.h
@@ -37,7 +37,11 @@
 // does not prepare the window DC
 #define wxBUFFER_CLIENT_AREA        0x02
 
-class WXDLLEXPORT wxBufferedDC : public wxMemoryDC
+// Set when not using specific buffer bitmap. Note that this
+// is private style and not returned by GetStyle.
+#define wxBUFFER_USES_SHARED_BUFFER 0x04
+
+class WXDLLIMPEXP_CORE wxBufferedDC : public wxMemoryDC
 {
 public:
     // Default ctor, must subsequently call Init for two stage construction.
@@ -98,25 +102,11 @@ public:
     // Usually called in the dtor or by the dtor of derived classes if the
     // BufferedDC must blit before the derived class (which may own the dc it's
     // blitting to) is destroyed.
-    void UnMask()
-    {
-        wxCHECK_RET( m_dc, _T("no underlying wxDC?") );
-        wxASSERT_MSG( m_buffer && m_buffer->IsOk(), _T("invalid backing store") );
-
-        wxCoord x = 0,
-                y = 0;
-
-        if ( m_style & wxBUFFER_CLIENT_AREA )
-            GetDeviceOrigin(&x, &y);
-
-        m_dc->Blit(0, 0, m_buffer->GetWidth(), m_buffer->GetHeight(),
-                   this, -x, -y );
-        m_dc = NULL;
-    }
+    void UnMask();
 
     // Set and get the style
     void SetStyle(int style) { m_style = style; }
-    int GetStyle() const { return m_style; }
+    int GetStyle() const { return m_style & ~wxBUFFER_USES_SHARED_BUFFER; }
 
 private:
     // common part of Init()s
@@ -159,7 +149,7 @@ private:
 
 // Creates a double buffered wxPaintDC, optionally allowing the
 // user to specify their own buffer to use.
-class WXDLLEXPORT wxBufferedPaintDC : public wxBufferedDC
+class WXDLLIMPEXP_CORE wxBufferedPaintDC : public wxBufferedDC
 {
 public:
     // If no bitmap is supplied by the user, a temporary one will be created.
@@ -229,7 +219,7 @@ private:
 
 #ifdef __WXDEBUG__
 
-class wxAutoBufferedPaintDC : public wxAutoBufferedPaintDCBase
+class WXDLLIMPEXP_CORE wxAutoBufferedPaintDC : public wxAutoBufferedPaintDCBase
 {
 public: