Fixed bug where pixel/color information at x=0 coordinates werent shown:

- pixel-coordinates now calculated with floor
- guard for update in layout does not apply for 0 coordinates anymore

Patch by Ruben Stein.

src/layout_image.c

@@ -1541,7 +1541,7 @@ void layout_status_update_pixel_cb(PixbufRenderer *pr, gpointer data)
 
 	pixbuf_renderer_get_mouse_position(pr, &x_pixel, &y_pixel);
 
-	if(x_pixel > 0 && y_pixel > 0)
+	if(x_pixel >= 0 && y_pixel >= 0)
 		{
 		gint r_mouse, g_mouse, b_mouse;
 		gint width, height;

src/pixbuf-renderer.c

@@ -4197,8 +4197,8 @@ gboolean pixbuf_renderer_get_mouse_position(PixbufRenderer *pr, gint *x_pixel_re
 		return FALSE;
 		}
 
-	x_pixel = (gint)((gdouble)(pr->x_mouse - pr->x_offset + pr->x_scroll) / pr->scale);
-	y_pixel = (gint)((gdouble)(pr->y_mouse - pr->y_offset + pr->y_scroll) / pr->scale);
+	x_pixel = floor((gdouble)(pr->x_mouse - pr->x_offset + pr->x_scroll) / pr->scale);
+	y_pixel = floor((gdouble)(pr->y_mouse - pr->y_offset + pr->y_scroll) / pr->scale);
 	x_pixel_clamped = CLAMP(x_pixel, 0, pr->image_width - 1);
 	y_pixel_clamped = CLAMP(y_pixel, 0, pr->image_height - 1);