fix crash when copy'ing latent plugins

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

diff --git a/libs/canvas/ruler.cc b/libs/canvas/ruler.cc
index 74755f6eccced0de6772ee26109b4d24f86a3400..1c11def93a8b95a586cef2aa5c11b44ade1adc0b 100644 (file)
--- a/libs/canvas/ruler.cc
+++ b/libs/canvas/ruler.cc
@@ -36,7 +36,8 @@ Ruler::Ruler (Canvas* c, const Metric& m)
        , _metric (&m)
        , _lower (0)
        , _upper (0)
-        , _divide_height (-1.0)
+       , _divide_height (-1.0)
+       , _font_description (0)
        , _need_marks (true)
 {
 }
@@ -46,7 +47,8 @@ Ruler::Ruler (Canvas* c, const Metric& m, Rect const& r)
        , _metric (&m)
        , _lower (0)
        , _upper (0)
-        , _divide_height (-1.0)
+       , _divide_height (-1.0)
+       , _font_description (0)
        , _need_marks (true)
 {
 }
@@ -56,7 +58,8 @@ Ruler::Ruler (Item* parent, const Metric& m)
        , _metric (&m)
        , _lower (0)
        , _upper (0)
-        , _divide_height (-1.0)
+       , _divide_height (-1.0)
+       , _font_description (0)
        , _need_marks (true)
 {
 }
@@ -66,7 +69,8 @@ Ruler::Ruler (Item* parent, const Metric& m, Rect const& r)
        , _metric (&m)
        , _lower (0)
        , _upper (0)
-        , _divide_height (-1.0)
+       , _divide_height (-1.0)
+       , _font_description (0)
        , _need_marks (true)
 {
 }
@@ -85,6 +89,7 @@ void
 Ruler::set_font_description (Pango::FontDescription fd)
 {
        begin_visual_change ();
+       delete _font_description;
        _font_description = new Pango::FontDescription (fd);
        end_visual_change ();
 }