+ } else if (action == MOVE_ORIGIN || action == MOVE_SOURCE ||
+ action == MOVE_ORIGIN_AND_SOURCE || action == MOVE_CURSOR) {
+ assert(dir != 0);
+ if (action == MOVE_ORIGIN || action == MOVE_ORIGIN_AND_SOURCE) {
+ if (state->wrapping) {
+ OFFSET(ui->org_x, ui->org_y, ui->org_x, ui->org_y, dir, state);
+ } else return nullret; /* disallowed for non-wrapping grids */
+ }
+ if (action == MOVE_SOURCE || action == MOVE_ORIGIN_AND_SOURCE) {
+ OFFSET(ui->cx, ui->cy, ui->cx, ui->cy, dir, state);
+ }
+ if (action == MOVE_CURSOR) {
+ OFFSET(ui->cur_x, ui->cur_y, ui->cur_x, ui->cur_y, dir, state);
+ ui->cur_visible = TRUE;
+ }
+ return "";