boolean Dialog::post_for_aligned(Window* w, float x_align, float y_align) {
TransientWindow* t = new TransientWindow(this);
t->style(new Style(style()));
t->transient_for(w);
t->wm_delete(new DialogHandler(this));
t->place(w->left() + 0.5 * w->width(), w->bottom() + 0.5 * w->height());
t->align(x_align, y_align);
t->map();
boolean b = run();
t->unmap();
t->display()->sync();
delete t;
return b;
}
boolean Dialog::post_at_aligned(
Coord x, Coord y, float x_align, float y_align
) {
TransientWindow* t = new TransientWindow(this);
t->style(new Style(style()));
t->wm_delete(new DialogHandler(this));
t->place(x, y);
t->align(x_align, y_align);
t->map();
boolean b = run();
t->unmap();
t->display()->sync();
delete t;
return b;
}