From c269b1fa9eaa247ef2b863367c249b996b4a01be Mon Sep 17 00:00:00 2001
From: Thomas White <taw@physics.org>
Date: Mon, 17 Jun 2019 23:45:25 +0200
Subject: Prevent auto-repeat on playback keys

---
 src/display.c   | 28 ++++++++++++++++++++++++++--
 src/nanolight.c |  2 ++
 src/nanolight.h |  2 ++
 3 files changed, 30 insertions(+), 2 deletions(-)

diff --git a/src/display.c b/src/display.c
index 72dfb2b..ed10330 100644
--- a/src/display.c
+++ b/src/display.c
@@ -472,6 +472,23 @@ static void execute_command(struct nanolight *nl)
 }
 
 
+static gboolean key_release_sig(GtkWidget *da, GdkEventKey *event, struct nanolight *nl)
+{
+	switch ( event->keyval ) {
+
+		case GDK_KEY_KP_Enter :
+		nl->go_lock = 0;
+		break;
+
+		case GDK_KEY_KP_Add :
+		nl->sb_lock = 0;
+		break;
+	}
+
+	return FALSE;
+}
+
+
 static gboolean key_press_sig(GtkWidget *da, GdkEventKey *event, struct nanolight *nl)
 {
 	gboolean r;
@@ -509,11 +526,17 @@ static gboolean key_press_sig(GtkWidget *da, GdkEventKey *event, struct nanoligh
 		break;
 
 		case GDK_KEY_KP_Enter :
-		printf("Go!\n");
+		if ( !nl->go_lock ) {
+			printf("Go!\n");
+			nl->go_lock = 1;
+		}
 		break;
 
 		case GDK_KEY_KP_Add :
-		printf("Stop/back!\n");
+		if ( !nl->sb_lock ) {
+			printf("Stop/back!\n");
+			nl->sb_lock = 1;
+		}
 		break;
 
 		case GDK_KEY_Home :
@@ -611,6 +634,7 @@ static gint realise_sig(GtkWidget *da, struct nanolight *nl)
 	gdk_window_set_accept_focus(win, TRUE);
 	g_signal_connect(G_OBJECT(nl->im_context), "commit", G_CALLBACK(im_commit_sig), nl);
 	g_signal_connect(G_OBJECT(da), "key-press-event", G_CALLBACK(key_press_sig), nl);
+	g_signal_connect(G_OBJECT(da), "key-release-event", G_CALLBACK(key_release_sig), nl);
 	g_signal_connect(G_OBJECT(da), "button-press-event", G_CALLBACK(button_press_sig), nl);
 	g_signal_connect(G_OBJECT(da), "button-release-event", G_CALLBACK(button_release_sig), nl);
 	g_signal_connect(G_OBJECT(da), "motion-notify-event", G_CALLBACK(motion_sig), nl);
diff --git a/src/nanolight.c b/src/nanolight.c
index aea925c..4751feb 100644
--- a/src/nanolight.c
+++ b/src/nanolight.c
@@ -208,6 +208,8 @@ int main(int argc, char *argv[])
 	nl.n_sel = 0;
 	nl.sel_attr = ATT_INTENSITY;
 	nl.dragging = 0;
+	nl.go_lock = 0;
+	nl.sb_lock = 0;
 
 	create_fixture(&nl, &cls, "mh1", 0, 1);
 	create_fixture(&nl, &cls, "mh2", 0, 52);
diff --git a/src/nanolight.h b/src/nanolight.h
index dfe7b6a..dec9f52 100644
--- a/src/nanolight.h
+++ b/src/nanolight.h
@@ -98,6 +98,8 @@ struct nanolight
 	enum attr_class sel_attr;
 	int dragging;
 	int fine;
+	int go_lock;
+	int sb_lock;
 
 	double x_orig;
 	double y_orig;
-- 
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