/** \brief Wrapper to cast to the object and use it's function. */
float
Parameter::get_float (const SPDocument * doc, const Inkscape::XML::Node * node)
{
ParamFloat * floatpntr = dynamic_cast<ParamFloat *>(this);
if (floatpntr == NULL)
throw Extension::param_not_float_param();
return floatpntr->get(doc, node);
}
/** Wrapper to cast to the object and use it's function. */
float
Parameter::set_float (float in, SPDocument * doc, Inkscape::XML::Node * node)
{
ParamFloat * floatpntr;
floatpntr = dynamic_cast<ParamFloat *>(this);
if (floatpntr == NULL)
throw Extension::param_not_float_param();
return floatpntr->set(in, doc, node);
}
/** \brief A function to respond to the value_changed signal from the
adjustment.
This function just grabs the value from the adjustment and writes
it to the parameter. Very simple, but yet beautiful.
*/
void
ParamFloatAdjustment::val_changed (void)
{
//std::cout << "Value Changed to: " << this->get_value() << std::endl;
_pref->set(this->get_value(), _doc, _node);
if (_changeSignal != NULL) {
_changeSignal->emit();
}
return;
}
/** \brief Make the adjustment using an extension and the string
describing the parameter. */
ParamFloatAdjustment (ParamFloat * param, SPDocument * doc, Inkscape::XML::Node * node, sigc::signal<void> * changeSignal) :
Gtk::Adjustment(0.0, param->min(), param->max(), 0.1, 0), _pref(param), _doc(doc), _node(node), _changeSignal(changeSignal) {
this->set_value(_pref->get(NULL, NULL) /* \todo fix */);
this->signal_value_changed().connect(sigc::mem_fun(this, &ParamFloatAdjustment::val_changed));
return;
};