compositor-x11: Set window icon

5 files changed, 76 insertions, 23 deletions

diff --git a/compositor/compositor-x11.c b/compositor/compositor-x11.c
index 5cacb3f..cbd266a 100644
--- a/compositor/compositor-x11.c
+++ b/compositor/compositor-x11.c
@@ -61,8 +61,10 @@ struct x11_compositor {
 		xcb_atom_t		 wm_delete_window;
 		xcb_atom_t		 wm_class;
 		xcb_atom_t		 net_wm_name;
+		xcb_atom_t		 net_wm_icon;
 		xcb_atom_t		 string;
 		xcb_atom_t		 utf8_string;
+		xcb_atom_t		 cardinal;
 	} atom;
 };
 
@@ -330,6 +332,31 @@ struct wm_normal_hints {
 #define WM_NORMAL_HINTS_MIN_SIZE	16
 #define WM_NORMAL_HINTS_MAX_SIZE	32
 
+static void
+x11_output_set_icon(struct x11_compositor *c, struct x11_output *output,
+		    const char *filename, int width, int height)
+{
+	uint32_t *icon, *pixels;
+
+	pixels = wlsc_load_image(filename, width, height);
+	if (!pixels)
+		return;
+	icon = malloc(width * height * 4 + 8);
+	if (!icon) {
+		free(pixels);
+		return;
+	}
+
+	icon[0] = width;
+	icon[1] = height;
+	memcpy(icon + 2, pixels, width * height * 4);
+	xcb_change_property(c->conn, XCB_PROP_MODE_REPLACE, output->window,
+			    c->atom.net_wm_icon, c->atom.cardinal, 32,
+			    width * height + 2, icon);
+	free(icon);
+	free(pixels);
+}
+
 static int
 x11_compositor_create_output(struct x11_compositor *c, int width, int height)
 {
@@ -409,6 +436,9 @@ x11_compositor_create_output(struct x11_compositor *c, int width, int height)
 			    c->atom.wm_class, c->atom.string, 8,
 			    sizeof class, class);
 
+	x11_output_set_icon(c, output,
+			    DATADIR "/wayland/wayland.png", 128, 128);
+
 	xcb_map_window(c->conn, output->window);
 
 	rectangle.x = 0;
@@ -611,8 +641,10 @@ x11_compositor_get_resources(struct x11_compositor *c)
 		{ "WM_DELETE_WINDOW",	F(atom.wm_delete_window) },
 		{ "WM_CLASS",		F(atom.wm_class) },
 		{ "_NET_WM_NAME",	F(atom.net_wm_name) },
+		{ "_NET_WM_ICON",	F(atom.net_wm_icon) },
 		{ "STRING",		F(atom.string) },
 		{ "UTF8_STRING",	F(atom.utf8_string) },
+		{ "CARDINAL",		F(atom.cardinal) },
 	};
 
 	xcb_intern_atom_cookie_t cookies[ARRAY_SIZE(atoms)];
diff --git a/compositor/compositor.c b/compositor/compositor.c
index d391fca..746a729 100644
--- a/compositor/compositor.c
+++ b/compositor/compositor.c
@@ -189,21 +189,22 @@ destroy_surface(struct wl_resource *resource, struct wl_client *client)
 	wlsc_compositor_schedule_repaint(compositor);
 }
 
-static struct wl_buffer *
-create_buffer_from_png(struct wlsc_compositor *ec,
-		       const char *filename, int width, int height)
+uint32_t *
+wlsc_load_image(const char *filename, int width, int height)
 {
 	GdkPixbuf *pixbuf;
 	GError *error = NULL;
 	int stride, i, n_channels;
 	unsigned char *pixels, *end, *argb_pixels, *s, *d;
-	struct wl_buffer *buffer;
 
 	pixbuf = gdk_pixbuf_new_from_file_at_scale(filename,
 						   width, height,
 						   FALSE, &error);
-	if (error != NULL)
+	if (error != NULL) {
+		fprintf(stderr, "failed to load image: %s\n", error->message);
+		g_error_free(error);
 		return NULL;
+	}
 
 	stride = gdk_pixbuf_get_rowstride(pixbuf);
 	pixels = gdk_pixbuf_get_pixels(pixbuf);
@@ -252,11 +253,23 @@ create_buffer_from_png(struct wlsc_compositor *ec,
 
 	g_object_unref(pixbuf);
 
+	return (uint32_t *) argb_pixels;
+}
+
+static struct wl_buffer *
+create_buffer_from_png(struct wlsc_compositor *ec,
+		       const char *filename, int width, int height)
+{
+	uint32_t *pixels;
+	struct wl_buffer *buffer;
+
+	pixels = wlsc_load_image(filename, width, height);
+
 	buffer = ec->create_buffer(ec, width, height,
 				   &ec->compositor.premultiplied_argb_visual,
-				   argb_pixels);
+				   pixels);
 
-	free(argb_pixels);
+	free(pixels);
 
 	return buffer;
 }
diff --git a/compositor/compositor.h b/compositor/compositor.h
index ac826ed..fbfaa59 100644
--- a/compositor/compositor.h
+++ b/compositor/compositor.h
@@ -230,4 +230,7 @@ tty_destroy(struct tty *tty);
 void
 screenshooter_create(struct wlsc_compositor *ec);
 
+uint32_t *
+wlsc_load_image(const char *filename, int width, int height);
+
 #endif
diff --git a/data/Makefile.am b/data/Makefile.am
index 25ef36a..d03a58c 100644
--- a/data/Makefile.am
+++ b/data/Makefile.am
@@ -19,4 +19,8 @@ dist_waylanddata_DATA =				\
 	top_right_corner.png			\
 	top_side.png				\
 	xterm.png				\
-	wayland.svg
+	wayland.svg				\
+	wayland.png
+
+wayland.png : wayland.svg
+	rsvg-convert -w 128 -h 128 wayland.svg -o wayland.png
diff --git a/data/wayland.svg b/data/wayland.svg
index 6e12c7b..29cb8f0 100644
--- a/data/wayland.svg
+++ b/data/wayland.svg
@@ -1,5 +1,4 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-
 <!-- Copyright © 2010 Kristian Høgsberg
 
      Permission to use, copy, modify, distribute, and sell this
@@ -33,12 +32,12 @@
    xmlns="http://www.w3.org/2000/svg"
    xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
    xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
-   width="744.09448819"
-   height="1052.3622047"
+   width="128"
+   height="128"
    id="svg2"
    version="1.1"
    inkscape:version="0.48.0 r9654"
-   sodipodi:docname="wayland-2.svg"
+   sodipodi:docname="wayland.svg"
    inkscape:export-filename="/home/krh/wayland.png"
    inkscape:export-xdpi="41.302303"
    inkscape:export-ydpi="41.302303">
@@ -51,16 +50,16 @@
      borderopacity="1.0"
      inkscape:pageopacity="0"
      inkscape:pageshadow="2"
-     inkscape:zoom="1.3493453"
+     inkscape:zoom="1.1"
      inkscape:cx="246.80131"
-     inkscape:cy="588.75473"
+     inkscape:cy="58.818182"
      inkscape:document-units="px"
      inkscape:current-layer="layer1"
      showgrid="false"
-     inkscape:window-width="1391"
-     inkscape:window-height="1086"
-     inkscape:window-x="904"
-     inkscape:window-y="339"
+     inkscape:window-width="1278"
+     inkscape:window-height="740"
+     inkscape:window-x="0"
+     inkscape:window-y="26"
      inkscape:window-maximized="0" />
   <metadata
      id="metadata7">
@@ -70,7 +69,7 @@
         <dc:format>image/svg+xml</dc:format>
         <dc:type
            rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
-        <dc:title></dc:title>
+        <dc:title />
       </cc:Work>
     </rdf:RDF>
   </metadata>
@@ -78,7 +77,8 @@
      inkscape:label="Layer 1"
      inkscape:groupmode="layer"
      id="layer1"
-     style="display:inline">
+     style="display:inline"
+     transform="translate(0,-924.36218)">
     <path
        sodipodi:type="arc"
        style="fill:#ffbc00;fill-opacity:1;stroke:none"
@@ -87,10 +87,11 @@
        sodipodi:cy="465.21933"
        sodipodi:rx="122.85714"
        sodipodi:ry="122.85714"
-       d="m 464.2857,465.21933 a 122.85714,122.85714 0 1 1 -245.71428,0 122.85714,122.85714 0 1 1 245.71428,0 z" />
+       d="m 464.2857,465.21933 a 122.85714,122.85714 0 1 1 -245.71428,0 122.85714,122.85714 0 1 1 245.71428,0 z"
+       transform="matrix(0.49134614,0,0,0.49134614,-102.99669,759.57895)" />
     <g
-       transform="scale(0.9155896,1.0921924)"
-       style="font-size:437.47387695px;font-style:normal;font-variant:normal;font-weight:bold;font-stretch:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#ffffff;fill-opacity:1;stroke:none;"
+       transform="matrix(0.44987141,0,0,0.53664452,-102.99669,759.57895)"
+       style="font-size:437.47387695px;font-style:normal;font-variant:normal;font-weight:bold;font-stretch:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#ffffff;fill-opacity:1;stroke:none"
        id="text2987">
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