add a critical section protecting ms_prev variables (replaces patch 1819224)

[wxWidgets.git] / include / wx / msw / bitmap.h

diff --git a/include/wx/msw/bitmap.h b/include/wx/msw/bitmap.h
index 695030e45388e855cb159615c278aa1d3e82d1aa..8c239785afd8444e11ad0a35b334fbe8fbf37c09 100644 (file)
--- a/include/wx/msw/bitmap.h
+++ b/include/wx/msw/bitmap.h
@@ -15,20 +15,29 @@
 #include "wx/msw/gdiimage.h"
 #include "wx/palette.h"
 
-class WXDLLEXPORT wxBitmap;
-class WXDLLEXPORT wxBitmapHandler;
-class WXDLLEXPORT wxBitmapRefData;
-class WXDLLEXPORT wxControl;
-class WXDLLEXPORT wxCursor;
-class WXDLLEXPORT wxDC;
+class WXDLLIMPEXP_FWD_CORE wxBitmap;
+class WXDLLIMPEXP_FWD_CORE wxBitmapHandler;
+class WXDLLIMPEXP_FWD_CORE wxBitmapRefData;
+class WXDLLIMPEXP_FWD_CORE wxControl;
+class WXDLLIMPEXP_FWD_CORE wxCursor;
+class WXDLLIMPEXP_FWD_CORE wxDC;
 #if wxUSE_WXDIB
-class WXDLLEXPORT wxDIB;
+class WXDLLIMPEXP_FWD_CORE wxDIB;
 #endif
-class WXDLLEXPORT wxIcon;
-class WXDLLEXPORT wxImage;
-class WXDLLEXPORT wxMask;
-class WXDLLEXPORT wxPalette;
-class WXDLLEXPORT wxPixelDataBase;
+class WXDLLIMPEXP_FWD_CORE wxIcon;
+class WXDLLIMPEXP_FWD_CORE wxImage;
+class WXDLLIMPEXP_FWD_CORE wxMask;
+class WXDLLIMPEXP_FWD_CORE wxPalette;
+class WXDLLIMPEXP_FWD_CORE wxPixelDataBase;
+
+// What kind of transparency should a bitmap copied from an icon or cursor
+// have?
+enum wxBitmapTransparency
+{
+  wxBitmapTransparency_Auto,    // default: copy alpha if the source has it
+  wxBitmapTransparency_None,    // never create alpha
+  wxBitmapTransparency_Always   // always use alpha
+};
 
 // ----------------------------------------------------------------------------
 // wxBitmap: a mono or colour bitmap
@@ -80,7 +89,11 @@ public:
 
     // we must have this, otherwise icons are silently copied into bitmaps using
     // the copy ctor but the resulting bitmap is invalid!
-    wxBitmap(const wxIcon& icon) { CopyFromIcon(icon); }
+    wxBitmap(const wxIcon& icon,
+             wxBitmapTransparency transp = wxBitmapTransparency_Auto)
+    {
+        CopyFromIcon(icon, transp);
+    }
 
     wxBitmap& operator=(const wxIcon& icon)
     {
@@ -105,11 +118,17 @@ public:
     // get the given part of bitmap
     wxBitmap GetSubBitmap( const wxRect& rect ) const;
 
+    // NB: This should not be called from user code. It is for wx internal
+    // use only. 
+    wxBitmap GetSubBitmapOfHDC( const wxRect& rect, WXHDC hdc ) const;
+
     // copies the contents and mask of the given (colour) icon to the bitmap
-    bool CopyFromIcon(const wxIcon& icon);
+    bool CopyFromIcon(const wxIcon& icon,
+                      wxBitmapTransparency transp = wxBitmapTransparency_Auto);
 
     // copies the contents and mask of the given cursor to the bitmap
-    bool CopyFromCursor(const wxCursor& cursor);
+    bool CopyFromCursor(const wxCursor& cursor,
+                        wxBitmapTransparency transp = wxBitmapTransparency_Auto);
 
 #if wxUSE_WXDIB
     // copies from a device independent bitmap
@@ -143,13 +162,6 @@ public:
     bool HasAlpha() const;
     void UseAlpha();
 
-#if WXWIN_COMPATIBILITY_2_4
-    // these functions do nothing and are only there for backwards
-    // compatibility
-    wxDEPRECATED( int GetQuality() const );
-    wxDEPRECATED( void SetQuality(int quality) );
-#endif // WXWIN_COMPATIBILITY_2_4
-
     // implementation only from now on
     // -------------------------------
 
@@ -182,7 +194,9 @@ protected:
 
 private:
     // common part of CopyFromIcon/CopyFromCursor for Win32
-    bool CopyFromIconOrCursor(const wxGDIImage& icon);
+    bool
+    CopyFromIconOrCursor(const wxGDIImage& icon,
+                         wxBitmapTransparency transp = wxBitmapTransparency_Auto);
 
 
     DECLARE_DYNAMIC_CLASS(wxBitmap)