1. fixed (to test) the bug with bitmaps without masks in wxImageList

2. reorganized wxImageList a bit, created a new wxInvertMask() function
3. an incredibly ugly fix (?) for "unsatisfied constraints" warnings
4. added wxIcon and wxBitmap ctors from XPM
5. XPM handler now creates bitmaps with mask
6. added wxPrinterDC::BitBlt() and DrawBitmap(), cleared the horrible mess in
   the wxDC methods with the same names


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@5571 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/msw/bitmap.h

@@ -78,7 +78,8 @@ public:
     wxBitmap(const char bits[], int width, int height, int depth = 1);
 
     // Initialize with XPM data
-    wxBitmap(char **data, wxControl *anItem = NULL);
+    wxBitmap(const char **data) { CreateFromXpm(data); }
+    wxBitmap(char **data) { CreateFromXpm((const char **)data); }
 
     // Load a file or resource
     wxBitmap(const wxString& name, long type = wxBITMAP_TYPE_BMP_RESOURCE);
@@ -116,7 +117,7 @@ public:
 
     virtual ~wxBitmap();
 
-    // GRG, Dic/99
+    // get the given part of bitmap
     wxBitmap GetSubBitmap( const wxRect& rect ) const;
  
     // copies the contents and mask of the given (colour) icon to the bitmap
@@ -182,6 +183,9 @@ protected:
     virtual wxGDIImageRefData *CreateData() const
         { return new wxBitmapRefData; }
 
+    // creates the bitmap from XPM data, supposed to be called from ctor
+    bool CreateFromXpm(const char **bits);
+
 private:
 #ifdef __WIN32__
     // common part of CopyFromIcon/CopyFromCursor for Win32