本文整理汇总了C++中Alg_seq_ptr::add_track方法的典型用法代码示例。如果您正苦于以下问题：C++ Alg_seq_ptr::add_track方法的具体用法？C++ Alg_seq_ptr::add_track怎么用？C++ Alg_seq_ptr::add_track使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Alg_seq_ptr的用法示例。
在下文中一共展示了Alg_seq_ptr::add_track方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: Mf_starttrack
void Alg_midifile_reader::Mf_starttrack()
{
// printf("starting new track\n");
// create a new track that will share the sequence time map
// since time is in beats, the seconds parameter is false
track_number++;
seq->add_track(track_number); // make sure track exists
track = seq->track(track_number); // keep pointer to current track
meta_channel = -1;
port = 0;
}示例2: parse
bool Alg_reader::parse()
{
int voice = 0;
int key = 60;
double loud = 100.0;
double pitch = 60.0;
double dur = 1.0;
double time = 0.0;
int track_num = 0;
seq->convert_to_seconds();
//seq->set_real_dur(0.0); // just in case it's not initialized already
readline();
bool valid = false; // ignore blank lines
while (line_parser_flag) {
bool time_flag = false;
bool next_flag = false;
double next;
bool voice_flag = false;
bool loud_flag = false;
bool dur_flag = false;
bool new_pitch_flag = false; // "P" syntax or "A"-"G" syntax
double new_pitch = 0.0;
bool new_key_flag = false; // "K" syntax
int new_key = 0;
Alg_parameters_ptr attributes = NULL;
if (line_parser.peek() == '#') {
// look for #track
line_parser.get_nonspace_quoted(field);
if (streql(field.c_str(), "#track")) {
line_parser.get_nonspace_quoted(field); // number
field.insert(0, " "); // need char at beginning because
// parse_int ignores the first character of the argument
track_num = parse_int(field);
seq->add_track(track_num);
// maybe we have a sequence or track name
line_parser.get_remainder(field);
// if there is a non-space character after #track n then
// use it as sequence or track name. Note that because we
// skip over spaces, a sequence or track name cannot begin
// with leading blanks. Another decision is that the name
// must be at time zero
if (field.length() > 0) {
// insert the field as sequence name or track name
Alg_update_ptr update = new Alg_update;
update->chan = -1;
update->time = 0;
update->set_identifier(-1);
// sequence name is whatever is on track 0
// other tracks have track names
const char *attr =
(track_num == 0 ? "seqnames" : "tracknames");
update->parameter.set_attr(
symbol_table.insert_string(attr));
update->parameter.s = heapify(field.c_str());
seq->add_event(update, track_num);
}
} else if (streql(field.c_str(), "#offset")) {
if (offset_found) {
parse_error(field, 0, "#offset specified twice");
}
offset_found = true;
line_parser.get_nonspace_quoted(field); // number
field.insert(0, " "); // need char at beginning because
// parse_real ignores first character in the argument
offset = parse_real(field);
}
} else {
// we must have a track to insert into
if (seq->tracks() == 0) seq->add_track(0);
line_parser.get_nonspace_quoted(field);
char pk = line_parser.peek();
// attributes are parsed as two adjacent nonspace_quoted tokens
// so we have to conditionally call get_nonspace_quoted() again
if (pk && !isspace(pk)) {
string field2;
line_parser.get_nonspace_quoted(field2);
field.append(field2);
}
while (field[0]) {
char first = toupper(field[0]);
if (strchr("ABCDEFGKLPUSIQHW-", first)) {
valid = true; // it's a note or event
}
if (first == 'V') {
if (voice_flag) {
parse_error(field, 0, "Voice specified twice");
} else {
voice = parse_chan(field);
}
voice_flag = true;
} else if (first == 'T') {
if (time_flag) {
parse_error(field, 0, "Time specified twice");
} else {
time = parse_dur(field, 0.0);
}
time_flag = true;
} else if (first == 'N') {
if (next_flag) {
//.........这里部分代码省略.........
示例3: readline
//.........这里部分代码省略.........
bool Alg_reader::parse()
{
int voice = 0;
int key = 60;
double loud = 100.0;
double pitch = 60.0;
double dur = 1.0;
double time = 0.0;
int track_num = 0;
seq->convert_to_seconds();
//seq->set_real_dur(0.0); // just in case it's not initialized already
readline();
bool valid = false; // ignore blank lines
while (line_parser_flag) {
bool time_flag = false;
bool next_flag = false;
double next;
bool voice_flag = false;
bool loud_flag = false;
bool dur_flag = false;
bool new_pitch_flag = false; // "P" syntax
double new_pitch = 0.0;
bool new_key_flag = false; // "K" syntax
int new_key = 0;
bool new_note_flag = false; // "A"-"G" syntax
int new_note = 0;
Alg_parameters_ptr attributes = NULL;
if (line_parser.peek() == '#') {
// look for #track
line_parser.get_nonspace_quoted(field);
if (streql(field, "#track")) {
line_parser.get_nonspace_quoted(field); // number
track_num = parse_int(field - 1);
seq->add_track(track_num);
}
// maybe we have a comment
} else {
// we must have a track to insert into
if (seq->tracks() == 0) seq->add_track(0);
line_parser.get_nonspace_quoted(field);
char pk = line_parser.peek();
// attributes are parsed as two adjacent nonspace_quoted tokens
// so we have to conditionally call get_nonspace_quoted() again
if (pk && !isspace(pk)) {
line_parser.get_nonspace_quoted(field + strlen(field));
}
while (field[0]) {
char first = toupper(field[0]);
if (strchr("ABCDEFGKLPUSIQHW-", first)) {
valid = true; // it's a note or event
}
if (first == 'V') {
if (voice_flag) {
parse_error(field, 0, "Voice specified twice");
} else {
voice = parse_chan(field);
}
voice_flag = true;
} else if (first == 'T') {
if (time_flag) {
parse_error(field, 0, "Time specified twice");
} else {
time = parse_dur(field, 0.0);
}
time_flag = true;
} else if (first == 'N') {