[gedit/wip/printing-improvements] print-preview: various small code enhancements

[Sébastien Wilmet <swilmet src gnome org>]

commit 7a717db90f95ebd088d9da6bfce3b313eaab14e5
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Sat Jun 27 17:45:43 2015 +0200

    print-preview: various small code enhancements

 gedit/gedit-print-preview.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gedit/gedit-print-preview.c b/gedit/gedit-print-preview.c
index c0aa873..a899c55 100644
--- a/gedit/gedit-print-preview.c
+++ b/gedit/gedit-print-preview.c
@@ -65,7 +65,7 @@ struct _GeditPrintPreview
        gint n_columns;
 
        guint n_pages;
-       guint cur_page;
+       guint cur_page; /* starts at 0 */
        gint cursor_x;
        gint cursor_y;
 
@@ -483,7 +483,7 @@ scroll_event_activated (GtkWidget         *widget,
 static gint
 get_first_page_displayed (GeditPrintPreview *preview)
 {
-       return preview->cur_page - preview->cur_page % preview->n_columns;
+       return preview->cur_page - (preview->cur_page % preview->n_columns);
 }
 
 /* returns the page number (starting from 0) or -1 if no page */