X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Fwx%2Fstandard_controls.cc;h=cef06d29cf695c1af92e8e9e1255b2fc7ac2b2f0;hb=b9a1ad3df5f9d85fb7439efd93fede72b9b078af;hp=c78844ca1bc3ddd14e1d463519b88d440ece9d42;hpb=dd9be86db6cde0afa5da0d1d1ac43b42e05dca26;p=dcpomatic.git

diff --git a/src/wx/standard_controls.cc b/src/wx/standard_controls.cc
index c78844ca1..cef06d29c 100644
--- a/src/wx/standard_controls.cc
+++ b/src/wx/standard_controls.cc
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2018 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2018-2021 Carl Hetherington <cth@carlh.net>
 
     This file is part of DCP-o-matic.
 
@@ -18,13 +18,19 @@
 
 */
 
-#include "standard_controls.h"
+
 #include "film_viewer.h"
-#include <wx/wx.h>
+#include "standard_controls.h"
+#include "lib/warnings.h"
+DCPOMATIC_DISABLE_WARNINGS
 #include <wx/tglbtn.h>
+#include <wx/wx.h>
+DCPOMATIC_ENABLE_WARNINGS
+
 
 using std::shared_ptr;
 
+
 StandardControls::StandardControls (wxWindow* parent, shared_ptr<FilmViewer> viewer, bool editor_controls)
 	: Controls (parent, viewer, editor_controls)
 	, _play_button (new wxToggleButton(this, wxID_ANY, _("Play")))
@@ -33,6 +39,7 @@ StandardControls::StandardControls (wxWindow* parent, shared_ptr<FilmViewer> vie
 	_play_button->Bind (wxEVT_TOGGLEBUTTON, boost::bind(&StandardControls::play_clicked, this));
 }
 
+
 void
 StandardControls::started ()
 {
@@ -40,6 +47,7 @@ StandardControls::started ()
 	_play_button->SetValue (true);
 }
 
+
 void
 StandardControls::stopped ()
 {
@@ -47,26 +55,30 @@ StandardControls::stopped ()
 	_play_button->SetValue (false);
 }
 
+
 void
 StandardControls::play_clicked ()
 {
 	check_play_state ();
 }
 
+
 void
 StandardControls::check_play_state ()
 {
-	if (!_film || _film->video_frame_rate() == 0) {
+	auto viewer = _viewer.lock ();
+	if (!_film || _film->video_frame_rate() == 0 || !viewer) {
 		return;
 	}
 
 	if (_play_button->GetValue()) {
-		_viewer->start ();
+		viewer->start ();
 	} else {
-		_viewer->stop ();
+		viewer->stop ();
 	}
 }
 
+
 void
 StandardControls::setup_sensitivity ()
 {
@@ -75,6 +87,7 @@ StandardControls::setup_sensitivity ()
 	_play_button->Enable (_film && !_film->content().empty() && !active_job);
 }
 
+
 void
 StandardControls::play ()
 {
@@ -82,6 +95,7 @@ StandardControls::play ()
 	play_clicked ();
 }
 
+
 void
 StandardControls::stop ()
 {