Moved clean_filename to file_utils.cpp where it belongs;

Split up images exporting, and moved it to data/formats/image

git-svn-id: svn://svn.code.sf.net/p/magicseteditor/code/trunk@1085 0fc631ac-6414-0410-93d0-97cfa31319b6

src/data/format/formats.hpp

@@ -11,6 +11,7 @@
 
 #include <util/prec.hpp>
 #include <util/error.hpp>
+#include <data/settings.hpp>
 
 class Game;
 DECLARE_POINTER_TYPE(Set);
@@ -85,6 +86,10 @@ FileFormatP mtg_editor_file_format();
 /// Export images for each card in a set to a list of files
 void export_images(Window* parent, const SetP& set);
 
+/// Export the image for each card in a list of cards
+void export_images(const SetP& set, vector<CardP>& cards,
+                   const String& path, const String& filename_template, FilenameConflicts conflicts);
+
 /// Export the image of a single card
 void export_image(const SetP& set, const CardP& card, const String& filename);