KeyframeList::iterator
KeyframeList::find(const Time &x)
{
KeyframeList::iterator iter;
iter=binary_find(begin(),end(),x);
if(iter!=end() && iter->get_time().is_equal(x))
return iter;
/* iter++;
if(iter!=end() && iter->get_time().is_equal(x))
return iter;
*/
throw Exception::NotFound(strprintf("KeyframeList::find(): Can't find Keyframe %s",x.get_string().c_str()));
}
void
Action::KeyframeSet::perform()
{
KeyframeList::iterator iter;
if (!get_canvas()->keyframe_list().find(keyframe, iter))
throw Error(_("Unable to find the given keyframe"));
old_time = iter->get_time();
new_time=keyframe.get_time();
// Check for collisions
KeyframeList::iterator i;
if (old_time != new_time && get_canvas()->keyframe_list().find(new_time, i))
throw Error(_("Cannot change keyframe time because another keyframe already exists with that time."));
keyframe_prev = get_canvas()->keyframe_list().find_prev(old_time, i)
? i->get_time() : Time::begin();
keyframe_next = get_canvas()->keyframe_list().find_next(old_time, i)
? i->get_time() : Time::end();
get_canvas()->keyframe_list().find_prev_next(old_time, keyframe_prev, keyframe_next);
old_keyframe = *iter;
*iter = keyframe;
get_canvas()->keyframe_list().sync();
try {
Action::Super::perform();
} catch(...) {
if (get_canvas()->keyframe_list().find(old_keyframe, iter)) {
*iter = old_keyframe;
get_canvas()->keyframe_list().sync();
}
throw;
}
// Signal that a keyframe was changed
if (get_canvas_interface())
get_canvas_interface()->signal_keyframe_changed()(keyframe);
else
synfig::warning("CanvasInterface not set on action");
}