[dia] svg: parse comments to meta info

[Hans Breuer <hans src gnome org>]

commit 437cafd1b296b4656df6fbd73cc637d648b58a0d
Author: Hans Breuer <hans breuer org>
Date:   Sun Jul 28 14:16:58 2013 +0200

    svg: parse comments to meta info

 plug-ins/svg/svg-import.c |   28 ++++++++++++++++++++++++----
 1 files changed, 24 insertions(+), 4 deletions(-)
---
diff --git a/plug-ins/svg/svg-import.c b/plug-ins/svg/svg-import.c
index b99ec64..96f23c5 100644
--- a/plug-ins/svg/svg-import.c
+++ b/plug-ins/svg/svg-import.c
@@ -1059,6 +1059,7 @@ read_items (xmlNodePtr   startnode,
 {
   xmlNodePtr node;
   GList *items = NULL;
+  gchar *comment = NULL;
 
 
   for (node = startnode; node != NULL; node = node->next) {
@@ -1069,6 +1070,16 @@ read_items (xmlNodePtr   startnode,
     DiaObject *obj = NULL;
 
     if (xmlIsBlankNode(node)) continue;
+    if (node->type == XML_COMMENT_NODE) {
+      if (!comment)
+        comment = g_strdup ((gchar *)node->content);
+      else {
+       gchar *prev = comment;
+       comment = g_strjoin ("\n", comment, (gchar *)node->content, NULL);
+       g_free (prev);
+      }
+      continue;
+    }
     if (node->type != XML_ELEMENT_NODE) continue;
 
     if (!xmlStrcmp(node->name, (const xmlChar *)"g")) {
@@ -1189,11 +1200,13 @@ read_items (xmlNodePtr   startnode,
        DiaObject *otemp = g_hash_table_lookup (defs_ht, key+1);
 
        if (otemp) {
-         DiaObject *onew = otemp->ops->copy (otemp);
+         /* The new object can be referenced again by use or
+          * be target for meta info, comment or something. */
+         obj = otemp->ops->copy (otemp);
 
-         use_position (onew, node);
-         apply_style (onew, node, parent_gs, FALSE);
-         items = g_list_append (items, onew);
+         use_position (obj, node);
+         apply_style (obj, node, parent_gs, FALSE);
+         items = g_list_append (items, obj);
        }
        xmlFree (key);
       }
@@ -1237,8 +1250,15 @@ read_items (xmlNodePtr   startnode,
          g_hash_table_insert (defs_ht, g_strdup ((char *)val), obj);
        xmlFree (val);
       }
+      if (comment) {
+       dia_object_set_meta (obj, "comment", (char *)comment);
+       g_free (comment);
+       comment = NULL;
+      }
     }
   }
+  /* just to be sure */
+  g_free (comment);
   return items;
 }