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#include "scommands.hh"
#include "debug.hh"
#include "parseconstruct.hh"
/*
maybe it's time for a "narrowing" cursor?
*/
PCursor<Command*>
Score_commands::first(Real w)
{
PCursor<Command*> pc(*this);
while (pc.ok() && pc->when < w)
pc++;
return pc;
}
PCursor<Command*>
Score_commands::last_insertion(Real w)
{
PCursor<Command*> pc(*this);
while (pc.ok() && pc->when <= w)
pc++;
return pc;
}
void
Score_commands::add_seq(svec<Command> com)
{
if (!com.sz())
return;
Real when = com[0].when;
PCursor<Command*> pc(last_insertion(when));
for (int i = 0; i < com.sz(); i++) {
Command *c = new Command(com[i]);
assert(com[i].when == when);
if (!pc.ok())
pc.add(c);
else
pc.insert(c);
}
}
void
Score_commands::set_breakable(Real when)
{
bool found_typeset(false);
PCursor<Command*> cc = first(when);
for (; cc.ok() && cc->when == when; cc++) {
if (cc->isbreak())
return;
if (cc->code == TYPESET)
found_typeset=true;
}
assert(!found_typeset);
svec<Command> seq;
Command k(when);
k.code = BREAK_PRE;
seq.add(k);
k.code = BREAK_MIDDLE;
seq.add(k);
k.code = BREAK_POST;
seq.add(k);
k.code = BREAK_END;
seq.add(k);
add_seq(seq);
}
bool
Score_commands::is_breakable(Real w)
{
PCursor<Command*> cc = first(w);
for (; cc.ok() && cc->when == w; cc++) {
if (cc->isbreak())
return true;
}
return false;
}
void
Score_commands::insert_between(Command victim, PCursor<Command*> firstc,
PCursor<Command*> last)
{
assert(last->when==firstc->when);
PCursor<Command*> c(firstc+1);
while (c != last) { // hmm what if !last.ok()?
if (victim.priority > c->priority) {
c.insert(new Command(victim));
return;
}
c++;
}
last.insert(new Command(victim));
}
void
Score_commands::add_command_to_break(Command pre, Command mid, Command post)
{
Real w = pre.when;
PCursor<Command*> c ( first(w)), f(c), l(c);
while (!c->isbreak())
c++;
f = c++;
while (!c->isbreak())
c++;
l = c++;
insert_between(pre, f, l);
f = l;
while (!c->isbreak())
c++;
l = c++;
insert_between(mid, f, l);
f = l;
while (!c->isbreak())
c++;
l = c++;
insert_between(post, f, l);
assert(l.ok() && l->when ==w && l->code == BREAK_END);
}
void
Score_commands::parser_add(Command *c)
{
bottom().add(c);
}
void
Score_commands::process_add(Command c)
{
bool encapsulate =false;
Real w = c.when;
Command pre(w);
Command mid(w);
Command post(w);
if (c.code == TYPESET) {
if (c.args[0] == "BAR") {
set_breakable(w);
encapsulate = true;
mid = c;
pre = c;
}
if (c.args[0] == "METER" && is_breakable(w)) {
encapsulate = true;
mid = c;
pre = c;
post =c;
}
}
if (encapsulate)
add_command_to_break(pre, mid, post);
else {
svec<Command> seq;
seq.add(c);
add_seq(seq);
}
}
/*
first and last column should be breakable.
Remove any command past the last musical column.
*/
void
Score_commands::clean(Real l)
{
assert(l>0);
if (!is_breakable(0.0)) {
Command c(0.0);
c.code = TYPESET;
c.args.add("BAR");
c.args.add("empty");
process_add(c);
}
PCursor<Command*> bot(bottom());
while (bot.ok() && bot->when > l) {
mtor <<"removing ";
bot->print();
bot.del();
bot = bottom();
}
if (!is_breakable(l)) {
Command c(l);
c.code = TYPESET;
c.args.add("BAR");
c.args.add("||");
process_add(c);
}
OK();
}
void
Score_commands::OK() const
{
for (PCursor<Command*> cc(*this); cc.ok() && (cc+1).ok(); cc++) {
assert(cc->when <= (cc+1)->when);
if (cc->when == (cc+1)->when && !cc->isbreak() && !(cc+1)->isbreak())
assert(cc->priority >= (cc+1)->priority);
}
}
void
Score_commands::print() const
{
for (PCursor<Command*> cc(*this); cc.ok() ; cc++) {
cc->print();
}
}
/*
TODO
*/
Score_commands*
Score_commands::parse(Real l) const
{
Score_commands*nc = new Score_commands;
int beats_per_meas=4;
Real measlen = 1.0; // 4/4 by default
Real inbar=0.0;
int barcount=0;
Real wholes=0.0;
Real stoppos=0.0;
{
Command c(0.0);
c.code = TYPESET;
c.args.add("BAR");
c.args.add("empty");
nc->process_add(c);
}
for (PCursor<Command*> cc(*this); cc.ok() && cc->when <= l; cc++) {
assert (cc->code==INTERPRET);
if (cc->args[0] == "METER") {
beats_per_meas = cc->args[1].value();
int one_beat = cc->args[2].value();
measlen = beats_per_meas/Real(one_beat);
nc->process_add(*get_meter_command(wholes, beats_per_meas, one_beat));
}
if (cc->args[0] == "SKIP") {
stoppos = wholes + cc->args[1].value() * measlen +
cc->args[2].fvalue();
wholes += (measlen-inbar); // skip at least 1 measure
barcount++;
while (wholes <= stoppos) {
nc->process_add(*get_bar_command(wholes)); // liek
wholes += measlen;
barcount ++;
}
wholes = stoppos;
//something
}
}
return nc;
}
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