[gnome-games/wip/aplazas/781572-remove-vala-macro: 3/14] gamepad: Port StandardGamepadAxis to C

[Adrien Plazas <aplazas src gnome org>]

commit 851b8ac514620d8efc64295d286e9c00d028ff0c
Author: Adrien Plazas <kekun plazas laposte net>
Date:   Thu Apr 20 12:35:47 2017 +0200

    gamepad: Port StandardGamepadAxis to C
    
    This will help to port part of the gamepad handling to C to avoid using
    the Vala preprocessor.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=781572

 src/Makefile.am                        |    6 ++++-
 src/gamepad/standard-gamepad-axis.c    |   24 ++++++++++++++++++++
 src/gamepad/standard-gamepad-axis.h    |   37 ++++++++++++++++++++++++++++++++
 src/gamepad/standard-gamepad-axis.vala |   33 ----------------------------
 src/gamepad/standard-gamepad-axis.vapi |   10 ++++++++
 5 files changed, 76 insertions(+), 34 deletions(-)
---
diff --git a/src/Makefile.am b/src/Makefile.am
index cc9f9a5..1ddb729 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -24,6 +24,7 @@ BUILT_SOURCES = \
 EXTRA_DIST = \
        $(gresource_file) \
        gamepad/linux/libevdev.vapi \
+       gamepad/standard-gamepad-axis.vapi \
        $(NULL)
 
 header_file = libgnome-games.h
@@ -77,7 +78,7 @@ gnome_games_SOURCES = \
        gamepad/gamepad-monitor.vala \
        gamepad/raw-gamepad.vala \
        gamepad/raw-gamepad-monitor.vala \
-       gamepad/standard-gamepad-axis.vala \
+       gamepad/standard-gamepad-axis.c \
        gamepad/standard-gamepad-button.vala \
        \
        generic/generic-game.vala \
@@ -178,8 +179,10 @@ gnome_games_VALAFLAGS = \
        --pkg retro-gtk-0.10 \
        --pkg linux \
        --pkg posix \
+       --pkg standard-gamepad-axis \
        --gresources $(gresource_file) \
        --vapi $(vapi_file) \
+       --vapidir=gamepad/ \
        -H $(header_file) \
        $(NULL)
 
@@ -202,6 +205,7 @@ gnome_games_CFLAGS = \
        $(GNOME_GAMES_CFLAGS) \
        $(GAMEPADS_CFLAGS) \
        $(UDEV_CFLAGS) \
+       -I$(srcdir)/gamepad \
        -DGNOMELOCALEDIR=\""$(datadir)/locale"\" \
        -DGAMES_PLUGINS_DIR=\"$(libdir)/gnome-games/plugins\" \
        $(NULL)
diff --git a/src/gamepad/standard-gamepad-axis.c b/src/gamepad/standard-gamepad-axis.c
new file mode 100644
index 0000000..0aa346f
--- /dev/null
+++ b/src/gamepad/standard-gamepad-axis.c
@@ -0,0 +1,24 @@
+// This file is part of GNOME Games. License: GPL-3.0+.
+
+#include "standard-gamepad-axis.h"
+
+GType
+games_standard_gamepad_axis_get_type (void)
+{
+  static volatile gsize type_id = 0;
+  static const GEnumValue values[] = {
+    { GAMES_STANDARD_GAMEPAD_AXIS_UNKNOWN, "GAMES_STANDARD_GAMEPAD_AXIS_UNKNOWN", "unknown" },
+    { GAMES_STANDARD_GAMEPAD_AXIS_LEFT_X, "GAMES_STANDARD_GAMEPAD_AXIS_LEFT_X", "left-x" },
+    { GAMES_STANDARD_GAMEPAD_AXIS_LEFT_Y, "GAMES_STANDARD_GAMEPAD_AXIS_LEFT_Y", "left-y" },
+    { GAMES_STANDARD_GAMEPAD_AXIS_RIGHT_X, "GAMES_STANDARD_GAMEPAD_AXIS_RIGHT_X", "right-x" },
+    { GAMES_STANDARD_GAMEPAD_AXIS_RIGHT_Y, "GAMES_STANDARD_GAMEPAD_AXIS_RIGHT_Y", "right-y" },
+    { 0, NULL, NULL },
+  };
+
+  if (g_once_init_enter (&type_id))
+    g_once_init_leave (&type_id,
+                       g_enum_register_static ("GamesStandardGamepadAxis",
+                                               values));
+
+  return type_id;
+}
diff --git a/src/gamepad/standard-gamepad-axis.h b/src/gamepad/standard-gamepad-axis.h
new file mode 100644
index 0000000..457868e
--- /dev/null
+++ b/src/gamepad/standard-gamepad-axis.h
@@ -0,0 +1,37 @@
+// This file is part of GNOME Games. License: GPL-3.0+.
+
+#ifndef GAMES_STANDARD_GAMEPAD_AXIS_H
+#define GAMES_STANDARD_GAMEPAD_AXIS_H
+
+#include <glib-object.h>
+
+G_BEGIN_DECLS
+
+#define GAMES_TYPE_STANDARD_GAMEPAD_AXIS (games_standard_gamepad_axis_get_type ())
+
+/**
+ * GamesStandardGamepadAxis:
+ * @GAMES_STANDARD_GAMEPAD_AXIS_UNKNOWN: an unknown axis
+ * @GAMES_STANDARD_GAMEPAD_AXIS_LEFT_X: the horizontal axis of the left stick
+ * @GAMES_STANDARD_GAMEPAD_AXIS_LEFT_Y: the vertical axis of the left stick
+ * @GAMES_STANDARD_GAMEPAD_AXIS_RIGHT_X: the horizontal axis of the right stick
+ * @GAMES_STANDARD_GAMEPAD_AXIS_RIGHT_Y: the vertical axis of the right stick
+ *
+ * The axes of a standard gamepad.
+ *
+ * For horizontal axes, left is -1 and right is 1; for vertical axes,
+ * top is -1 and bottom is 1.
+ **/
+typedef enum {
+  GAMES_STANDARD_GAMEPAD_AXIS_UNKNOWN,
+  GAMES_STANDARD_GAMEPAD_AXIS_LEFT_X,
+  GAMES_STANDARD_GAMEPAD_AXIS_LEFT_Y,
+  GAMES_STANDARD_GAMEPAD_AXIS_RIGHT_X,
+  GAMES_STANDARD_GAMEPAD_AXIS_RIGHT_Y,
+} GamesStandardGamepadAxis;
+
+GType games_standard_gamepad_axis_get_type (void) G_GNUC_CONST;
+
+G_END_DECLS
+
+#endif /* GAMES_STANDARD_GAMEPAD_AXIS_H */
diff --git a/src/gamepad/standard-gamepad-axis.vapi b/src/gamepad/standard-gamepad-axis.vapi
new file mode 100644
index 0000000..d306075
--- /dev/null
+++ b/src/gamepad/standard-gamepad-axis.vapi
@@ -0,0 +1,10 @@
+// This file is part of GNOME Games. License: GPL-3.0+.
+
+[CCode (cheader_filename = "standard-gamepad-axis.h")]
+private enum Games.StandardGamepadAxis {
+       UNKNOWN,
+       LEFT_X,
+       LEFT_Y,
+       RIGHT_X,
+       RIGHT_Y,
+}