[glade/tintou/fixes: 2/4] Fix several compiler warnings

[Alberto Fanjul <albfan src gnome org>]

commit b108afa29b2b4d26c124920e7c71f716c2c201e4
Author: Corentin Noël <corentin noel collabora com>
Date:   Fri Apr 5 15:44:03 2019 +0200

    Fix several compiler warnings

 gladeui/glade-command.c         |  6 +++---
 gladeui/glade-editor-property.c | 10 +++++-----
 2 files changed, 8 insertions(+), 8 deletions(-)
---
diff --git a/gladeui/glade-command.c b/gladeui/glade-command.c
index 8b02ae09..b92db245 100644
--- a/gladeui/glade-command.c
+++ b/gladeui/glade-command.c
@@ -926,7 +926,7 @@ glade_command_set_properties (GladeProperty *property,
       g_assert (G_IS_VALUE (nvalue));
 
       sdata = g_new (GCSetPropData, 1);
-      sdata->property = g_object_ref (prop);
+      sdata->property = g_object_ref (GLADE_PROPERTY (prop));
       sdata->old_value = g_new0 (GValue, 1);
       sdata->new_value = g_new0 (GValue, 1);
       g_value_init (sdata->old_value, G_VALUE_TYPE (ovalue));
@@ -1260,7 +1260,7 @@ glade_command_add (GList            *widgets,
       adaptor = glade_widget_get_adaptor (widget);
 
       /* Widget */
-      cdata->widget = g_object_ref (widget);
+      cdata->widget = g_object_ref (GLADE_WIDGET (widget));
 
       /* Parentless ref */
       if ((cdata->reffed =
@@ -1426,7 +1426,7 @@ glade_command_remove (GList *widgets)
       widget = list->data;
 
       cdata = g_new0 (CommandData, 1);
-      cdata->widget = g_object_ref (widget);
+      cdata->widget = g_object_ref (GLADE_WIDGET (widget));
       cdata->parent = glade_widget_get_parent (widget);
 
       if ((cdata->reffed =
diff --git a/gladeui/glade-editor-property.c b/gladeui/glade-editor-property.c
index 981220c0..c7203e6e 100644
--- a/gladeui/glade-editor-property.c
+++ b/gladeui/glade-editor-property.c
@@ -1662,9 +1662,9 @@ glade_eprop_named_icon_changed_common (GladeEditorProperty *eprop,
   /* Here we try not to modify the project state by not 
    * modifying a null value for an unchanged property.
    */
-  if (prop_text == NULL && text && text[0] == '\0')
+  if (prop_text == NULL && text && *text == '\0')
     g_value_set_string (val, NULL);
-  else if (text == NULL && prop_text && prop_text[0] == '\0')
+  else if (text == NULL && prop_text && *prop_text == '\0')
     g_value_set_string (val, "");
   else
     g_value_set_string (val, text);
@@ -1842,7 +1842,7 @@ text_buffer_get_text (GtkTextBuffer *buffer)
   gtk_text_buffer_get_bounds (buffer, &start, &end);
   retval = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
 
-  if (retval && retval[0] == '\0')
+  if (retval && *retval == '\0')
     {
       g_free (retval);
       return NULL;
@@ -1985,9 +1985,9 @@ glade_eprop_text_changed_common (GladeEditorProperty *eprop,
       /* Here we try not to modify the project state by not 
        * modifying a null value for an unchanged property.
        */
-      if (prop_text == NULL && text && text[0] == '\0')
+      if (prop_text == NULL && text && *text == '\0')
         g_value_set_string (val, NULL);
-      else if (text == NULL && prop_text && prop_text[0] == '\0')
+      else if (text == NULL && prop_text && *prop_text == '\0')
         g_value_set_string (val, "");
       else
         g_value_set_string (val, text);