fix crash when copy'ing latent plugins

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

diff --git a/libs/canvas/line_set.cc b/libs/canvas/line_set.cc
index 3eacadaba2f5a0877030c2b732a916b3762822d6..03f2f0abf1a50b89d29d70208b12b36defbc464a 100644 (file)
--- a/libs/canvas/line_set.cc
+++ b/libs/canvas/line_set.cc
@@ -38,8 +38,8 @@ LineSet::LineSet (Canvas* c, Orientation o)
 
 }
 
-LineSet::LineSet (Group* group, Orientation o)
-       : Item (group)
+LineSet::LineSet (Item* parent, Orientation o)
+       : Item (parent)
        , _extent (0)
        , _orientation (o)
 {
@@ -54,7 +54,7 @@ LineSet::compute_bounding_box () const
        } else {
 
                if (_orientation == Horizontal) {
-                       
+
                        _bounding_box = Rect (0, /* x0 */
                                              _lines.front().pos - (_lines.front().width/2.0), /* y0 */
                                              _extent, /* x1 */
@@ -62,7 +62,7 @@ LineSet::compute_bounding_box () const
                                );
 
                } else {
-                       
+
                        _bounding_box = Rect (_lines.front().pos - _lines.front().width/2.0, /* x0 */
                                              0, /* y0 */
                                              _lines.back().pos + _lines.back().width/2.0, /* x1 */
@@ -101,9 +101,9 @@ LineSet::render (Rect const & area, Cairo::RefPtr<Cairo::Context> context) const
                }
 
                boost::optional<Rect> isect = self.intersection (area);
-                       
+
                if (!isect) {
-                       continue;       
+                       continue;
                }
 
                Rect intersection (isect.get());
@@ -134,7 +134,7 @@ void
 LineSet::add (Coord y, Distance width, Color color)
 {
        begin_change ();
-       
+
        _lines.push_back (Line (y, width, color));
        sort (_lines.begin(), _lines.end(), LineSorter());