add:core: -added possibility to select objects in the command system by filter expressions (Eg: osd[@attr1==1 && (@attr2 != 2 || @attr3 != "strval") ][0]) and optionally indexing the result of filtering

- enabled setting common attributes (x,y,w,h) for OSDs in one place 
- removed osd_set_attr() command system function in favour of the new object selection mechanism


git-svn-id: http://svn.code.sf.net/p/navit/code/trunk/navit@4768 ffa7fe5e-494d-0410-b361-a75ebd5db220

1 files changed, 13 insertions, 0 deletions

diff --git a/navit/command.c b/navit/command.c
index 228fcbca..1caca790 100644
--- a/navit/command.c
+++ b/navit/command.c
@@ -15,6 +15,7 @@
 #include "command.h"
 #include "event.h"
 #include "navit_nls.h"
+#include "obj_filter.h"
 
 /*
 gui.fullscreen=!gui.fullscreen
@@ -267,6 +268,18 @@ eval_value(struct context *ctx, struct result *res) {
 		op++;
 	}
 
+	struct obj_filter_t out;
+	int parsed_chars = parse_obj_filter(op, &out);
+	if (parsed_chars) {
+		struct attr* res_attr = filter_object(ctx->attr, out.iterator_type, out.filter_expr, out.idx);
+		if (res_attr) {
+			res->attr = *res_attr;
+			g_free(res_attr);
+			ctx->expr = op+parsed_chars;
+			return;
+		}
+	} 
+
 	if ((op[0] >= 'a' && op[0] <= 'z') || op[0] == '_') {
 		res->attr.type=attr_none;
 		res->var=op;