improve placement of yad window. now negative zero as a coordinate works correctly

src/main.c

@@ -350,6 +350,7 @@ create_layout (GtkWidget *dlg)
 static void
 realize_cb (GtkWidget *dlg, gpointer d)
 {
+  GdkGravity gravity = GDK_GRAVITY_NORTH_WEST;
 
   if (options.data.fixed)
     {
@@ -378,10 +379,19 @@ realize_cb (GtkWidget *dlg, gpointer d)
         gtk_window_get_position (GTK_WINDOW (dlg), &options.data.posx, NULL);
       if (!options.data.use_posy)
         gtk_window_get_position (GTK_WINDOW (dlg), NULL, &options.data.posy);
-      if (options.data.posx < 0)
+      if (options.data.negx)
+        {
           options.data.posx = sw - ww + options.data.posx;
-      if (options.data.posy < 0)
+          gravity = GDK_GRAVITY_NORTH_EAST;
+        }
+      if (options.data.negy)
+        {
           options.data.posy = sh - wh + options.data.posy;
+          gravity = GDK_GRAVITY_SOUTH_WEST;
+        }
+      if (options.data.negx && options.data.negy)
+        gravity = GDK_GRAVITY_SOUTH_EAST;
+      gtk_window_set_gravity (GTK_WINDOW (dlg), gravity);
       gtk_window_move (GTK_WINDOW (dlg), options.data.posx, options.data.posy);
     }
 }

src/option.c

@@ -1239,6 +1239,7 @@ set_posx (const gchar * option_name, const gchar * value, gpointer data, GError
 {
   options.data.use_posx = TRUE;
   options.data.posx = atol (value);
+  options.data.negx = (*value == '-');
 
   return TRUE;
 }
@@ -1248,6 +1249,7 @@ set_posy (const gchar * option_name, const gchar * value, gpointer data, GError
 {
   options.data.use_posy = TRUE;
   options.data.posy = atol (value);
+  options.data.negy = (*value == '-');
 
   return TRUE;
 }
@@ -1592,8 +1594,10 @@ yad_options_init (void)
 #endif
   options.data.use_posx = FALSE;
   options.data.posx = 0;
+  options.data.negx = FALSE;
   options.data.use_posy = FALSE;
   options.data.posy = 0;
+  options.data.negy = FALSE;
   options.data.geometry = NULL;
   options.data.dialog_text = NULL;
   options.data.text_width = 0;

src/util.c

@@ -546,6 +546,7 @@ parse_geometry ()
 
       ptr = geom + i;
       x = atoi (ptr);
+      options.data.negx = (*ptr == '-');
 
       i++;
       while (geom[i] && geom[i] != '-' && geom[i] != '+') i++;
@@ -555,6 +556,7 @@ parse_geometry ()
 
       ptr = geom + i;
       y = atoi (ptr);
+      options.data.negy = (*ptr == '-');
     }
 
   if (w != -1)

src/yad.h

@@ -227,8 +227,10 @@ typedef struct {
   gint height;
   gboolean use_posx;
   gint posx;
+  gboolean negx;
   gboolean use_posy;
   gint posy;
+  gboolean negy;
   gchar *geometry;
   guint timeout;
   gchar *to_indicator;