const synfig::Time get_time_offset_from_vdesc(const synfigapp::ValueDesc &v)
{
#ifdef ADJUST_WAYPOINTS_FOR_TIME_OFFSET
if(getenv("SYNFIG_SHOW_CANVAS_PARAM_WAYPOINTS") ||
v.get_value_type() != synfig::type_canvas)
return synfig::Time::zero();
synfig::Canvas::Handle canvasparam = v.get_value().get(Canvas::Handle());
if(!canvasparam)
return synfig::Time::zero();
if (!v.parent_is_layer())
return synfig::Time::zero();
synfig::Layer::Handle layer = v.get_layer();
if (etl::handle<Layer_PasteCanvas>::cast_dynamic(layer))
return synfig::Time::zero();
return layer->get_param("time_offset").get(Time());
#else // ADJUST_WAYPOINTS_FOR_TIME_OFFSET
return synfig::Time::zero();
#endif
}
synfig::Real get_value(int chan, synfig::Real time, synfig::Real tolerance)
{
std::map<synfig::Real,synfig::Real>::iterator iter;
// First check to see if we have a value
// that is "close enough" to the time
// we are looking for
iter=channels[chan].values.lower_bound(time);
if(iter!=channels[chan].values.end() && iter->first-time<=tolerance)
return -iter->second;
// Since that didn't work, we now need
// to go ahead and figure out what the
// actual value is at that time.
ValueBase value(value_desc.get_value(time));
Type &type(value.get_type());
if (type == type_real)
channels[0].values[time]=value.get(Real());
else
if (type == type_time)
channels[0].values[time]=value.get(Time());
else
if (type == type_integer)
channels[0].values[time]=value.get(int());
else
if (type == type_bool)
channels[0].values[time]=value.get(bool());
else
if (type == type_angle)
channels[0].values[time]=Angle::rad(value.get(Angle())).get();
else
if (type == type_color)
{
channels[0].values[time]=value.get(Color()).get_r();
channels[1].values[time]=value.get(Color()).get_g();
channels[2].values[time]=value.get(Color()).get_b();
channels[3].values[time]=value.get(Color()).get_a();
}
else
if (type == type_vector)
{
channels[0].values[time]=value.get(Vector())[0];
channels[1].values[time]=value.get(Vector())[1];
}
else
if (type == type_bline_point)
{
channels[0].values[time]=value.get(BLinePoint()).get_vertex()[0];
channels[1].values[time]=value.get(BLinePoint()).get_vertex()[1];
channels[2].values[time]=value.get(BLinePoint()).get_width();
channels[3].values[time]=value.get(BLinePoint()).get_origin();
channels[4].values[time]=value.get(BLinePoint()).get_split_tangent_both();
channels[5].values[time]=value.get(BLinePoint()).get_tangent1()[0];
channels[6].values[time]=value.get(BLinePoint()).get_tangent1()[1];
channels[7].values[time]=value.get(BLinePoint()).get_tangent2()[0];
channels[8].values[time]=value.get(BLinePoint()).get_tangent2()[1];
channels[9].values[time]=value.get(BLinePoint()).get_split_tangent_radius();
channels[10].values[time]=value.get(BLinePoint()).get_split_tangent_angle();
}
else
if (type == type_width_point)
{
channels[0].values[time]=value.get(WidthPoint()).get_position();
channels[1].values[time]=value.get(WidthPoint()).get_width();
}
else
{
return 0;
}
return -channels[chan].values[time];
}