[input] Make event names easy to print

Handy for debugging and testing.

include/QF/input/event.h

@@ -85,23 +85,14 @@ typedef struct {
 	int         devid;
 } IE_device_event_t;
 
+#define IE_EVENT(event) ie_##event,
 typedef enum {
-	ie_none,
-	ie_gain_focus,
-	ie_lose_focus,
-	ie_app_gain_focus,
-	ie_app_lose_focus,
-	ie_app_window,
-	ie_add_device,
-	ie_remove_device,
-	ie_mouse,
-	ie_key,
-	ie_axis,
-	ie_button,
-
+#include "QF/input/event_names.h"
 	ie_event_count
 } IE_event_type;
 
+extern const char *ie_event_names[];
+
 #define IE_broadcast_events (0 \
 		| (1 << ie_add_device) \
 		| (1 << ie_remove_device) \

include/QF/input/event_names.h

@@ -0,0 +1,45 @@
+/*
+	event_names.h
+
+	Input event enum names
+
+	Copyright (C) 2021      Bill Currie <bill@taniwha.org>
+
+	This program is free software; you can redistribute it and/or
+	modify it under the terms of the GNU General Public License
+	as published by the Free Software Foundation; either version 2
+	of the License, or (at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+	See the GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with this program; if not, write to:
+
+		Free Software Foundation, Inc.
+		59 Temple Place - Suite 330
+		Boston, MA  02111-1307, USA
+
+*/
+
+#ifndef IE_EVENT
+#define IE_EVENT(event)
+#endif
+
+IE_EVENT (none)
+IE_EVENT (gain_focus)
+IE_EVENT (lose_focus)
+IE_EVENT (app_gain_focus)
+IE_EVENT (app_lose_focus)
+IE_EVENT (app_window)
+IE_EVENT (add_device)
+IE_EVENT (remove_device)
+IE_EVENT (mouse)
+IE_EVENT (key)
+IE_EVENT (axis)
+IE_EVENT (button)
+
+#undef IE_EVENT

libs/input/in_event.c

@@ -43,6 +43,12 @@
 
 #include "QF/input/event.h"
 
+#define IE_EVENT(event) #event,
+const char *ie_event_names[] = {
+#include "QF/input/event_names.h"
+	0
+};
+
 typedef struct {
 	ie_handler_t *handler;
 	void       *data;