--- a/news.h Sun Dec 19 09:33:02 2004 +0000
+++ b/news.h Sun Dec 19 09:39:19 2004 +0000
@@ -14,20 +14,26 @@
TileIndex data_b;
uint32 params[10];
+
+ /* The validation functions for news items get called immediately
+ * before the news are supposed to be shown. If this funcion returns
+ * false, the news item won't be displayed. */
+ bool (*isValid) ( uint data_a, uint data_b );
};
+typedef bool ValidationProc ( uint data_a, uint data_b );
+typedef void DrawNewsCallbackProc(Window *w);
+typedef StringID GetNewsStringCallbackProc(NewsItem *ni);
#define NEWS_FLAGS(mode,flag,type,cb) ((cb)<<24 | (type)<<16 | (flag)<<8 | (mode))
void AddNewsItem(StringID string, uint32 flags, uint data_a, uint data_b);
+void AddValidatedNewsItem(StringID string, uint32 flags, uint data_a, uint data_b, ValidationProc *validation);
void NewsLoop(void);
void DrawNewsBorder(const Window *w);
void InitNewsItemStructs(void);
VARDEF NewsItem _statusbar_news_item;
-typedef void DrawNewsCallbackProc(Window *w);
-typedef StringID GetNewsStringCallbackProc(NewsItem *ni);
-
enum {
NT_ARRIVAL_PLAYER = 0,
NT_ARRIVAL_OTHER = 1,