Added new ctor for wxBitmap using wxCursor for wxQT (similar to wxGTK)

This is the implementation that should had been included in r78348

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@78353 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/qt/bitmap.cpp

@@ -219,6 +219,14 @@ wxBitmap::wxBitmap(const wxImage& image, int depth )
     m_refData = new wxBitmapRefData(QPixmap::fromImage(ConvertImage(image), flags));
 }
 
+wxBitmap::wxBitmap(const wxCursor& cursor)
+{
+    // note that pixmap could be invalid if is not a pixmap cursor
+    // also, a wxCursor::GetHandle method could be implemented instead of 
+    // accessing the member variable directly  
+    QPixmap pix = cursor.m_qtCursor.pixmap();
+    m_refData = new wxBitmapRefData(pix);
+}
 
 bool wxBitmap::Create(int width, int height, int depth )
 {