public void MoveCopy(char cmd, ssAddress dst)
{
dst.rng.l = dst.rng.r;
if (txt == dst.txt && txt.dot.Overlaps(dst.rng))
{
throw new ssException("addresses overlap");
}
string s = txt.ToString();
ssTrans t1 = new ssTrans(ssTrans.Type.insert, 0, dst.rng, s, null);
ssText txt1 = dst.txt;
ssTrans t2 = null;
ssText txt2 = null;
if (cmd == 'm')
{
t2 = new ssTrans(ssTrans.Type.delete, 0, txt.dot, null, null);
txt2 = txt;
t1.rng.len = s.Length;
if (t2.rng.l < t1.rng.l)
{
ssTrans x = t1;
t1 = t2;
t2 = x;
ssText txtx = txt1;
txt1 = txt2;
txt2 = txtx;
}
}
txt1.TLog.PushTrans(t1);
if (t2 != null)
{
txt2.TLog.PushTrans(t2);
}
}
public void FormLogTrans(ssTrans.Type typ, ssRange r, string s)
{
if (log)
{
curChangeId++;
if (canconsolidate &&
ts != null &&
ts.typ == ssTrans.Type.delete &&
typ == ssTrans.Type.delete &&
ts.rng.r == r.l &&
r.len == 1 &&
ts.s != null && rex.IsMatch(ts.s) &&
s != null && rex.IsMatch(s) &&
ts.s != txt.Eoln &&
s != txt.Eoln)
{
ed.PrevTransId();
ts.rng.r = r.r;
ts.chgid = curChangeId;
}
else
{
ts = new ssTrans(typ, ed.CurTransId, r, s, ts);
canconsolidate = true;
ts.chgid = curChangeId;
}
}
}
public void Insert(string s)
{
ssTrans t = new ssTrans(ssTrans.Type.insert, 0, txt.dot, s, null);
txt.TLog.PushTrans(t);
txt.dot.len = s.Length;
}
public ssTrans(Type t, long i, ssRange r, string ss, ssTrans nnxt)
{
typ = t;
id = i;
rng = r;
s = ss;
chgid = 1;
nxt = nnxt;
}
public void EdLogTrans(ssTrans t)
{
if (log)
{
t.id = ed.CurTransId;
t.chgid = curChangeId;
t.nxt = ts;
ts = t;
curChangeId++;
}
}
public ssTransLog(ssEd e, ssText t)
{
ts = null;
log = true;
ed = e;
txt = t;
seqRoot = new ssTrans(ssTrans.Type.delete, 0, t.dot, null, null);
adjEdge = new ssRange(0, 0);
getnewtrans = true;
canconsolidate = true;
savepoint = 0;
olddot = new ssRange();
rex = new Regex(@"[\w\s]");
}
public void PushTrans(ssTrans t)
{
switch (t.typ)
{
case ssTrans.Type.insert:
CheckSeq(ref t.rng, true);
break;
case ssTrans.Type.delete:
CheckSeq(ref t.rng, false);
break;
}
BeginTrans();
t.nxt = seqRoot.nxt;
seqRoot.nxt = t;
}
public void Commit()
{
FormLogTrans(ssTrans.Type.dot, OldDot, "");
ssTrans t = seqRoot.nxt;
while (t != null)
{
txt.dot = t.rng;
switch (t.typ)
{
case ssTrans.Type.rename:
string n = txt.Nm;
txt.Rename(t.s);
t.s = n;
break;
case ssTrans.Type.delete:
//CheckSeq(ref t.rng, false);
t.s = txt.ToString();
t.rng = txt.Delete();
t.typ = ssTrans.Type.insert;
break;
case ssTrans.Type.insert:
//CheckSeq(ref t.rng, true);
t.rng = txt.Insert(t.s);
t.s = null;
t.typ = ssTrans.Type.delete;
break;
}
ssTrans tt = t.nxt; // Grab t.nxt before LogTrans changes it.
if (tt == null)
{
if (t.typ != ssTrans.Type.rename)
{
txt.dot = t.rng;
}
txt.SyncFormToText();
}
EdLogTrans(t); // Form keeps from logging ed.log transactions. We don't check it here.
t = tt;
}
}
public void Delete()
{
ssTrans t = new ssTrans(ssTrans.Type.delete, 0, txt.dot, null, null);
txt.TLog.PushTrans(t);
}
public void Rename(string s)
{
ssTrans t = new ssTrans(ssTrans.Type.rename, 0, txt.dot, s, null);
txt.TLog.PushTrans(t);
}
