Changeset 59cf91c for view.c

Timestamp:

Aug 17, 2002, 1:21:17 PM (22 years ago)

Author:

Erik Nygren <nygren@mit.edu>

Branches:

master, barnowl_perlaim, debian, owl, release-1.10, release-1.4, release-1.5, release-1.6, release-1.7, release-1.8, release-1.9

Children:

67103d4

Parents:

37c27cf

Message:

	Attempts to stay near the current message when switching views.
	     When switching from an empty view to one we've previously
	     been in, the new current message position will attempt
	     to be close to the current position from the last
	     time we visited that view.

File:

• view.c (modified) (1 diff)

view.c

@@ -56 +56 @@
 }
 
+/* Returns the position in the view with a message closest 
+ * to the passed msgid. */
+int owl_view_get_nearest_to_msgid(owl_view *v, int targetid) {
+  int i, bestdist=-1, bestpos=0, curid, curdist;
+
+  for (i=0; i<owl_view_get_size(v); i++) {
+    curid = owl_message_get_id(owl_view_get_element(v, i));
+    curdist = abs(targetid-curid);
+    if (bestdist<0 || curdist<bestdist) {
+      bestdist = curdist;
+      bestpos = i;
+    }
+  }
+  return bestpos;
+}
+
+int owl_view_get_nearest_to_saved(owl_view *v) {
+  int cachedid = owl_filter_get_cachedmsgid(v->filter);
+  if (cachedid<0) return(0);
+  return owl_view_get_nearest_to_msgid(v, cachedid);
+}
+
+/* saves the current message position in the filter so it can 
+ * be restored later if we switch back to this filter. */
+void owl_view_save_curmsgid(owl_view *v, int curid) {
+  owl_filter_set_cachedmsgid(v->filter, curid);
+}
+
 char *owl_view_get_filtname(owl_view *v) {
   return(owl_filter_get_name(v->filter));