workaround/hack/fix for cairo pattern gradient space exceeding 2^16 size limit

[ardour.git] / libs / canvas / line_set.cc

diff --git a/libs/canvas/line_set.cc b/libs/canvas/line_set.cc
index c3ee5d44b9a49ef808b9e59190977a3609fd7519..5aefe1bf47f76cff8c2428ab4686a79b7450a576 100644 (file)
--- a/libs/canvas/line_set.cc
+++ b/libs/canvas/line_set.cc
@@ -73,8 +73,10 @@ LineSet::render (Rect const & area, Cairo::RefPtr<Cairo::Context> context) const
                } else if (i->y > area.y0) {
                        set_source_rgba (context, i->color);
                        context->set_line_width (i->width);
-                       context->move_to (area.x0, i->y);
-                       context->line_to (area.x1, i->y);
+                       Duple p0 = item_to_window (Duple (area.x0, i->y));
+                       Duple p1 = item_to_window (Duple (area.x1, i->y));
+                       context->move_to (p0.x, p0.y);
+                       context->line_to (p1.x, p1.y);
                        context->stroke ();
                }
        }