STR #1767: Adding "remove" function for the Fl_Check_Browser

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.1@5978 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

src/Fl_Check_Browser.cxx

@@ -193,6 +193,40 @@ int Fl_Check_Browser::add(char *s, int b) {
 	return (nitems_);
 }
 
+int Fl_Check_Browser::remove(int item) {
+  cb_item *p = find_item(item);
+  cb_item *prev;
+  cb_item *next;
+
+  // line at item exists
+  if(p) {
+    // tell the Browser_ what we will do
+    deleting(p);
+
+    // fix checked count
+    if(p->checked)
+      --nchecked_;
+
+    // remove the node
+    if (p->prev) 
+      p->prev->next = p->next;
+    else 
+      first = p->next;
+    if (p->next) 
+      p->next->prev = p->prev;
+    else 
+      last = p->prev;
+
+    free(p->text);
+    free(p);
+
+    --nitems_;
+    cached_item = -1;
+  }
+
+  return (nitems_);
+}
+
 void Fl_Check_Browser::clear() {
 	cb_item *p = first;
 	cb_item *next;