[evolution] Bug 233140 - Show message counts in subscribe folders dialog

[Milan Crha <mcrha src gnome org>]

commit 094d9c07dce115cb963665501327c286ff111645
Author: Milan Crha <mcrha redhat com>
Date:   Mon Aug 10 12:16:44 2015 +0200

    Bug 233140 - Show message counts in subscribe folders dialog

 mail/em-subscription-editor.c |   43 +++++++++++++++++++++++++++++++++++++++++
 1 files changed, 43 insertions(+), 0 deletions(-)
---
diff --git a/mail/em-subscription-editor.c b/mail/em-subscription-editor.c
index e0dfff1..c4b6f39 100644
--- a/mail/em-subscription-editor.c
+++ b/mail/em-subscription-editor.c
@@ -1316,6 +1316,41 @@ subscription_editor_selection_changed_cb (GtkTreeSelection *selection,
 }
 
 static void
+em_subscription_editor_get_unread_total_text_cb (GtkTreeViewColumn *tree_column,
+                                                GtkCellRenderer *cell,
+                                                GtkTreeModel *tree_model,
+                                                GtkTreeIter *iter,
+                                                gpointer user_data)
+{
+       CamelFolderInfo *folder_info = NULL;
+       GString *text = NULL;
+
+       g_return_if_fail (GTK_IS_CELL_RENDERER_TEXT (cell));
+       g_return_if_fail (GTK_IS_TREE_MODEL (tree_model));
+       g_return_if_fail (iter != NULL);
+
+       gtk_tree_model_get (tree_model, iter, COL_FOLDER_INFO, &folder_info, -1);
+
+       if (folder_info && folder_info->total > 0 && folder_info->unread >= 0 && folder_info->unread <= 
folder_info->total) {
+               text = g_string_new ("");
+
+               if (folder_info->unread > 0)
+                       g_string_append_printf (
+                               text, ngettext ("%d unread, ",
+                               "%d unread, ", folder_info->unread), folder_info->unread);
+
+               g_string_append_printf (
+                       text, ngettext ("%d total", "%d total",
+                       folder_info->total), folder_info->total);
+       }
+
+       g_object_set (G_OBJECT (cell), "text", text ? text->str : NULL, NULL);
+
+       if (text)
+               g_string_free (text, TRUE);
+}
+
+static void
 subscription_editor_add_store (EMSubscriptionEditor *editor,
                                CamelStore *store)
 {
@@ -1406,6 +1441,14 @@ subscription_editor_add_store (EMSubscriptionEditor *editor,
        gtk_tree_view_column_add_attribute (
                column, renderer, "text", COL_FOLDER_NAME);
 
+       column = gtk_tree_view_column_new ();
+       gtk_tree_view_append_column (GTK_TREE_VIEW (widget), column);
+
+       renderer = gtk_cell_renderer_text_new ();
+       gtk_tree_view_column_pack_start (column, renderer, FALSE);
+       gtk_tree_view_column_set_cell_data_func (column, renderer,
+               em_subscription_editor_get_unread_total_text_cb, NULL, NULL);
+
        selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (widget));
 
        g_signal_connect (