From e4de7f29244b79ca2464299cc4268206fe7b5598 Mon Sep 17 00:00:00 2001
From: Nick Lanham <nick@afternight.org>
Date: Thu, 23 Feb 2012 12:07:54 +0100
Subject: [PATCH] Only destroy ourselves if we haven't already been destroyed

---
 drmr_ui.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drmr_ui.c b/drmr_ui.c
index 1f78b86..9a25a4f 100644
--- a/drmr_ui.c
+++ b/drmr_ui.c
@@ -353,7 +353,10 @@ instantiate(const LV2UI_Descriptor*   descriptor,
 
 static void cleanup(LV2UI_Handle handle) {
   DrMrUi* ui = (DrMrUi*)handle;
-  gtk_widget_destroy(ui->drmr_widget);
+  // seems qtractor likes to destory us
+  // before calling, avoid double-destroy
+  if (GTK_IS_WIDGET(ui->drmr_widget))
+    gtk_widget_destroy(ui->drmr_widget);
   if (ui->gain_sliders) free(ui->gain_sliders);
   if (ui->pan_sliders) free(ui->pan_sliders);
   free_kits(ui->kits);