[evince] libview: get the page size only when needed when transforming to view coordinates

[Carlos Garcia Campos <carlosgc src gnome org>]

commit 04e5dae6cca079d9a06e8d5590b1b44e965a909c
Author: Carlos Garcia Campos <carlosgc gnome org>
Date:   Sat Apr 13 15:31:26 2013 +0200

    libview: get the page size only when needed when transforming to view coordinates
    
    Depending on the current rotation.

 libview/ev-view.c | 62 +++++++++++++++++++++++++++++++++++++++++--------------
 1 file changed, 46 insertions(+), 16 deletions(-)
---
diff --git a/libview/ev-view.c b/libview/ev-view.c
index 1925df0..3f4a2e4 100644
--- a/libview/ev-view.c
+++ b/libview/ev-view.c
@@ -1299,23 +1299,38 @@ _ev_view_transform_doc_point_to_view_point (EvView   *view,
        GdkRectangle page_area;
        GtkBorder border;
        double x, y, view_x, view_y;
-       gdouble width, height;
-
-       get_doc_page_size (view, page, &width, &height);
 
-       if (view->rotation == 0) {
+       switch (view->rotation) {
+       case 0:
                x = doc_point->x;
                y = doc_point->y;
-       } else if (view->rotation == 90) {
+
+               break;
+       case 90: {
+               gdouble width;
+
+               get_doc_page_size (view, page, &width, NULL);
                x = width - doc_point->y;
                y = doc_point->x;
-       } else if (view->rotation == 180) {
+       }
+               break;
+       case 180: {
+               gdouble width, height;
+
+               get_doc_page_size (view, page, &width, &height);
                x = width - doc_point->x;
                y = height - doc_point->y;
-       } else if (view->rotation == 270) {
+       }
+               break;
+       case 270: {
+               gdouble height;
+
+               get_doc_page_size (view, page, NULL, &height);
                x = doc_point->y;
                y = height - doc_point->x;
-       } else {
+       }
+               break;
+       default:
                g_assert_not_reached ();
        }
 
@@ -1336,31 +1351,46 @@ _ev_view_transform_doc_rect_to_view_rect (EvView       *view,
        GdkRectangle page_area;
        GtkBorder border;
        double x, y, w, h;
-       gdouble width, height;
-
-       get_doc_page_size (view, page, &width, &height);
 
-       if (view->rotation == 0) {
+       switch (view->rotation) {
+       case 0:
                x = doc_rect->x1;
                y = doc_rect->y1;
                w = doc_rect->x2 - doc_rect->x1;
                h = doc_rect->y2 - doc_rect->y1;
-       } else if (view->rotation == 90) {
+
+               break;
+       case 90: {
+               gdouble width;
+
+               get_doc_page_size (view, page, &width, NULL);
                x = width - doc_rect->y2;
                y = doc_rect->x1;
                w = doc_rect->y2 - doc_rect->y1;
                h = doc_rect->x2 - doc_rect->x1;
-       } else if (view->rotation == 180) {
+       }
+               break;
+       case 180: {
+               gdouble width, height;
+
+               get_doc_page_size (view, page, &width, &height);
                x = width - doc_rect->x2;
                y = height - doc_rect->y2;
                w = doc_rect->x2 - doc_rect->x1;
                h = doc_rect->y2 - doc_rect->y1;
-       } else if (view->rotation == 270) {
+       }
+               break;
+       case 270: {
+               gdouble height;
+
+               get_doc_page_size (view, page, NULL, &height);
                x = doc_rect->y1;
                y = height - doc_rect->x2;
                w = doc_rect->y2 - doc_rect->y1;
                h = doc_rect->x2 - doc_rect->x1;
-       } else {
+       }
+               break;
+       default:
                g_assert_not_reached ();
        }