Fixed some bugs to make GCC work. I needed to change SimpleValueAction to take the function as a variable as opposed to a template parameter - GCC won't accept pointers from a base class in templates.

git-svn-id: svn://svn.code.sf.net/p/magicseteditor/code/trunk@231 0fc631ac-6414-0410-93d0-97cfa31319b6

src/data/format/image.cpp

@@ -34,7 +34,7 @@ Bitmap export_bitmap(const SetP& set, const CardP& card) {
 	}
 	RealSize size = viewer.getRotation().getExternalSize();
 	// create bitmap & dc
-	Bitmap bitmap(size.width, size.height);
+	Bitmap bitmap((int) size.width, (int) size.height);
 	if (!bitmap.Ok()) throw InternalError(_("Unable to create bitmap"));
 	wxMemoryDC dc;
 	dc.SelectObject(bitmap);