Reset view position on opening a file

The GTK+ file open/save dialog has already been adding them,
but opening files from the command line would circumvent that path.

share/library/Logical/or.lua

@@ -23,6 +23,7 @@ local render = function (cr)
 	cr:curve_to (3, 0, 2, 2, 0, 2)
 	cr:line_to (-2, 2)
 	cr:curve_to (-1, 1, -1, -1, -2, -2)
+	cr:close_path ()
 	cr:stroke ()
 
 	-- The terminals

share/library/Misc/switch.lua

@@ -21,8 +21,7 @@ local render = function (cr)
 	cr:line_to (-1, 0)
 
 	-- The terminals
-	cr:move_to (-2, 0)
-	cr:line_to (-1, 0)
+	cr:line_to (-2, 0)
 
 	cr:move_to (1, 0)
 	cr:line_to (2, 0)

share/library/Passive/diode.lua

@@ -48,7 +48,7 @@ local render = function (cr)
 	cr:move_to (-1, -1)
 	cr:line_to (1, 0)
 	cr:line_to (-1, 1)
-	cr:line_to (-1, -1)
+	cr:close_path ()
 
 	-- The vertical line
 	cr:move_to (1, 1)

share/library/Passive/resistor.lua

@@ -42,7 +42,7 @@ local render = function (cr)
 	cr:line_to (1.5, -0.5)
 	cr:line_to (1.5, 0.5)
 	cr:line_to (-1.5, 0.5)
-	cr:line_to (-1.5, -0.5)
+	cr:close_path ()
 
 	-- The terminals
 	cr:move_to (-2, 0)

src/ld-window-main.c

@@ -712,9 +712,10 @@ diagram_save (LdWindowMain *self, GtkWindow *dialog_parent,
 static gboolean
 diagram_open (LdWindowMain *self, const gchar *filename)
 {
-	GError *error;
+	GError *error = NULL;
+	GFile *file;
+	gchar *uri;
 
-	error = NULL;
 	ld_diagram_load_from_file (self->priv->diagram, filename, &error);
 	if (error)
 	{
@@ -748,8 +749,17 @@ diagram_open (LdWindowMain *self, const gchar *filename)
 		return FALSE;
 	}
 
+	file = g_file_new_for_path (filename);
+	uri = g_file_get_uri (file);
+	g_object_unref (file);
+	gtk_recent_manager_add_item (gtk_recent_manager_get_default (), uri);
+	g_free (uri);
+
 	ld_diagram_set_modified (self->priv->diagram, FALSE);
 	diagram_set_filename (self, g_strdup (filename));
+
+	ld_diagram_view_set_x (self->priv->view, 0);
+	ld_diagram_view_set_y (self->priv->view, 0);
 	return TRUE;
 }