Add wxBitmap(NSImage*) ctor to wxOSX.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@73574 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/osx/bitmap.h

@@ -105,6 +105,7 @@ public:
     
     // creates an bitmap from the native image format
     wxBitmap(CGImageRef image);
+    wxBitmap(WX_NSImage image);
 
     // If depth is omitted, will create a bitmap compatible with the display
     wxBitmap(int width, int height, int depth = -1) { (void)Create(width, height, depth); }
@@ -129,6 +130,7 @@ public:
 
     virtual bool Create(const void* data, wxBitmapType type, int width, int height, int depth = 1);
     bool Create( CGImageRef image );
+    bool Create( WX_NSImage image );
     
     // virtual bool Create( WXHICON icon) ;
     virtual bool LoadFile(const wxString& name, wxBitmapType type = wxBITMAP_DEFAULT_TYPE);

src/osx/core/bitmap.cpp

@@ -1005,6 +1005,17 @@ IconRef wxBitmap::CreateIconRef() const
 
 #if wxOSX_USE_COCOA
 
+wxBitmap::wxBitmap(WX_NSImage image)
+{
+    (void)Create(image);
+}
+
+bool wxBitmap::Create(WX_NSImage image)
+{
+    wxCFRef<CGImageRef> cgimage(wxOSXCreateCGImageFromNSImage(image));
+    return Create(cgimage);
+}
+
 WX_NSImage wxBitmap::GetNSImage() const
 {
     wxCFRef< CGImageRef > cgimage(CreateCGImage());