swaybar: draw a sad face if SNI has no icon

1 files changed, 25 insertions, 9 deletions

diff --git a/swaybar/tray/item.c b/swaybar/tray/item.c
index 98d3dc1f..d00339e2 100644
--- a/swaybar/tray/item.c
+++ b/swaybar/tray/item.c
@@ -384,16 +384,32 @@ uint32_t render_sni(cairo_t *cairo, struct swaybar_output *output, double *x,
                 }
         }
 
-        if (!sni->icon) {
-                // TODO fallback
-                return 0;
-        }
-
+        int icon_size;
         cairo_surface_t *icon;
-        int actual_size = cairo_image_surface_get_height(sni->icon);
-        int icon_size = actual_size < ideal_size ?
-                actual_size * (ideal_size / actual_size) : ideal_size;
-        icon = cairo_image_surface_scale(sni->icon, icon_size, icon_size);
+        if (sni->icon) {
+                int actual_size = cairo_image_surface_get_height(sni->icon);
+                icon_size = actual_size < ideal_size ?
+                        actual_size*(ideal_size/actual_size) : ideal_size;
+                icon = cairo_image_surface_scale(sni->icon, icon_size, icon_size);
+        } else { // draw a sad face
+                icon_size = ideal_size*0.8;
+                icon = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, icon_size, icon_size);
+                cairo_t *cairo_icon = cairo_create(icon);
+                cairo_set_source_u32(cairo_icon, 0xFF0000FF);
+                cairo_translate(cairo_icon, icon_size/2, icon_size/2);
+                cairo_scale(cairo_icon, icon_size/2, icon_size/2);
+                cairo_arc(cairo_icon, 0, 0, 1, 0, 7);
+                cairo_fill(cairo_icon);
+                cairo_set_operator(cairo_icon, CAIRO_OPERATOR_CLEAR);
+                cairo_arc(cairo_icon, 0.35, -0.3, 0.1, 0, 7);
+                cairo_fill(cairo_icon);
+                cairo_arc(cairo_icon, -0.35, -0.3, 0.1, 0, 7);
+                cairo_fill(cairo_icon);
+                cairo_arc(cairo_icon, 0, 0.75, 0.5, 3.71238898038469, 5.71238898038469);
+                cairo_set_line_width(cairo_icon, 0.1);
+                cairo_stroke(cairo_icon);
+                cairo_destroy(cairo_icon);
+        }
 
         int padded_size = icon_size + 2*padding;
         *x -= padded_size;