C++ (Cpp) Rect::midpoint Beispiele

Beispiel #1

void
ZoomStatus::on_value_changed()
{
    if (_upd_f) return;
    _upd_f = true;
    g_assert(_dt);
    double zoom_factor = pow(2, get_value());
    Geom::Rect const d = _dt->get_display_area();
    _dt->zoom_absolute(d.midpoint()[Geom::X], d.midpoint()[Geom::Y], zoom_factor);
    gtk_widget_grab_focus(static_cast<GtkWidget*>((void*)_dt->canvas));   /// \todo this no love song
    _upd_f = false;
}