[evince] Unify direction of rotation

[Marek Kašík <mkasik src gnome org>]

commit 073ae1c4e7450f4715e6fcefaf954c4d53a6109d
Author: Marek Kasik <mkasik redhat com>
Date:   Mon Jun 23 14:16:04 2014 +0200

    Unify direction of rotation
    
    Convert rotation from clockwise direction to counter-clockwise direction
    for djvu backend.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=731786

 backend/djvu/djvu-document.c |    8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)
---
diff --git a/backend/djvu/djvu-document.c b/backend/djvu/djvu-document.c
index 9c30a22..06ce813 100644
--- a/backend/djvu/djvu-document.c
+++ b/backend/djvu/djvu-document.c
@@ -354,9 +354,13 @@ djvu_document_render (EvDocument      *document,
        ev_render_context_compute_transformed_size (rc, page_width, page_height,
                                                    &transformed_width, &transformed_height);
 
+       /*
+        * Evince rotates documents in clockwise direction
+        * and djvulibre rotates documents in counter-clockwise direction.
+        */
        switch (rc->rotation) {
                case 90:
-                       rotation += DDJVU_ROTATE_90;
+                       rotation += DDJVU_ROTATE_270;
                        
                        break;
                case 180:
@@ -364,7 +368,7 @@ djvu_document_render (EvDocument      *document,
                        
                        break;
                case 270:
-                       rotation += DDJVU_ROTATE_270;
+                       rotation += DDJVU_ROTATE_90;
                        
                        break;
                default: