[gtksourceview] Add missing cairo_save/cairo_restore calls

[Sébastien Wilmet <swilmet src gnome org>]

commit 73cd200fa1dff529479aeb5acc764ded608c1d2d
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Wed Oct 19 14:27:53 2016 +0200

    Add missing cairo_save/cairo_restore calls
    
    When drawing something, it should not affect the next things to draw.

 gtksourceview/gtksourcespacedrawer.c |    2 ++
 gtksourceview/gtksourceview.c        |    5 +++++
 2 files changed, 7 insertions(+), 0 deletions(-)
---
diff --git a/gtksourceview/gtksourcespacedrawer.c b/gtksourceview/gtksourcespacedrawer.c
index e326d2e..df5251e 100644
--- a/gtksourceview/gtksourcespacedrawer.c
+++ b/gtksourceview/gtksourcespacedrawer.c
@@ -1386,6 +1386,7 @@ _gtk_source_space_drawer_draw (GtkSourceSpaceDrawer *drawer,
        gtk_text_view_get_iter_at_location (text_view, &start, min_x, min_y);
        gtk_text_view_get_iter_at_location (text_view, &end, max_x, max_y);
 
+       cairo_save (cr);
        gdk_cairo_set_source_rgba (cr, drawer->priv->color);
        cairo_set_line_width (cr, 0.8);
        cairo_translate (cr, -0.5, -0.5);
@@ -1452,6 +1453,7 @@ _gtk_source_space_drawer_draw (GtkSourceSpaceDrawer *drawer,
        };
 
        cairo_stroke (cr);
+       cairo_restore (cr);
 
 #ifdef ENABLE_PROFILE
        g_timer_stop (timer);
diff --git a/gtksourceview/gtksourceview.c b/gtksourceview/gtksourceview.c
index a82cc8f..e3ddade 100644
--- a/gtksourceview/gtksourceview.c
+++ b/gtksourceview/gtksourceview.c
@@ -2371,6 +2371,7 @@ gtk_source_view_paint_line_background (GtkTextView    *text_view,
 {
        gdouble x1, y1, x2, y2;
 
+       cairo_save (cr);
        cairo_clip_extents (cr, &x1, &y1, &x2, &y2);
 
        gdk_cairo_set_source_rgba (cr, (GdkRGBA *)color);
@@ -2378,6 +2379,7 @@ gtk_source_view_paint_line_background (GtkTextView    *text_view,
        cairo_rectangle (cr, x1 + .5, y + .5, x2 - x1 - 1, height - 1);
        cairo_stroke_preserve (cr);
        cairo_fill (cr);
+       cairo_restore (cr);
 }
 
 static void
@@ -2527,6 +2529,7 @@ gtk_source_view_paint_right_margin (GtkSourceView *view,
 
        x = view->priv->cached_right_margin_pos + gtk_text_view_get_left_margin (text_view);
 
+       cairo_save (cr);
        cairo_set_line_width (cr, 1.0);
 
        if (x + 1 >= clip.x && x <= clip.x + clip.width)
@@ -2550,6 +2553,8 @@ gtk_source_view_paint_right_margin (GtkSourceView *view,
                cairo_fill (cr);
        }
 
+       cairo_restore (cr);
+
        PROFILE ({
                g_timer_stop (timer);
                g_print ("    gtk_source_view_paint_right_margin time: "