common: move load_image to swaybar

swaynag, swaymsg, and sway do not use this function and are
unlikely to in the future.

common/meson.build

@@ -1,7 +1,6 @@
 lib_sway_common = static_library(
 	'sway-common',
 	files(
-		'background-image.c',
 		'cairo.c',
 		'gesture.c',
 		'ipc-client.c',
@@ -14,7 +13,6 @@ lib_sway_common = static_library(
 	),
 	dependencies: [
 		cairo,
-		gdk_pixbuf,
 		pango,
 		pangocairo,
 		wayland_client.partial_dependency(compile_args: true)

include/swaybar/image.h

@@ -1,5 +1,5 @@
-#ifndef _SWAY_BACKGROUND_IMAGE_H
-#define _SWAY_BACKGROUND_IMAGE_H
+#ifndef _SWAYBAR_IMAGE_H
+#define _SWAYBAR_IMAGE_H
 #include <cairo.h>
 
 cairo_surface_t *load_image(const char *path);

swaybar/image.c

@@ -1,7 +1,7 @@
 #include <assert.h>
-#include "background-image.h"
 #include "config.h"
 #include "log.h"
+#include "swaybar/image.h"
 
 #if HAVE_GDK_PIXBUF
 #include <gdk-pixbuf/gdk-pixbuf.h>

swaybar/meson.build

@@ -26,6 +26,7 @@ executable(
 		'bar.c',
 		'config.c',
 		'i3bar.c',
+		'image.c',
 		'input.c',
 		'ipc.c',
 		'main.c',

swaybar/tray/item.c

@@ -7,12 +7,12 @@
 #include <string.h>
 #include "swaybar/bar.h"
 #include "swaybar/config.h"
+#include "swaybar/image.h"
 #include "swaybar/input.h"
 #include "swaybar/tray/host.h"
 #include "swaybar/tray/icon.h"
 #include "swaybar/tray/item.h"
 #include "swaybar/tray/tray.h"
-#include "background-image.h"
 #include "cairo_util.h"
 #include "list.h"
 #include "log.h"