//
// Import the specified range of data into the sequence so we have our own private copy
//
bool sequence::import_buffer (const seqchar *buf, size_t len, size_t *buffer_offset)
{
buffer_control *bc;
// get the current modify-buffer
bc = buffer_list[modifybuffer_id];
// if there isn't room then allocate a new modify-buffer
if(bc->length + len >= bc->maxsize)
{
bc = alloc_modifybuffer(len + 0x10000);
// make sure that no old spans use this buffer
record_action(action_invalid, 0);
}
if(bc == 0)
return false;
// import the data
memcpy(bc->buffer + bc->length, buf, len * sizeof(seqchar));
*buffer_offset = bc->length;
bc->length += len;
return true;
}
bool sequence::init ()
{
sequence_length = 0;
if(!alloc_modifybuffer(0x10000))
return false;
record_action(action_invalid, 0);
group_id = 0;
group_refcount = 0;
undoredo_index = 0;
undoredo_length = 0;
return true;
}
bool sequence::init (const seqchar *buffer, size_t length)
{
clear();
if(!init())
return false;
buffer_control *bc = alloc_modifybuffer(length);
memcpy(bc->buffer, buffer, length * sizeof(seqchar));
bc->length = length;
span *sptr = new span(0, length, bc->id, tail, head);
head->next = sptr;
tail->prev = sptr;
sequence_length = length;
return true;
}
bool sequence::init ()
{
sequence_length = 0;
origfile_id = -1;
origfile_name[0] = '\0';
can_quicksave = false;
if(!alloc_modifybuffer(0x10000))
return false;
record_action(action_invalid, 0);
group_id = 0;
group_refcount = 0;
undoredo_index = 0;
undoredo_length = 0;
undoredo_datalength = 0;
return true;
}