internal void ScrollUp(int from, int to) {
GLine top = FindLineOrEdge(from);
GLine bottom = FindLineOrEdge(to);
if (top == null || bottom == null)
return; //エラーハンドリングはFindLineの中で。ここではクラッシュ回避だけを行う
int bottom_id = bottom.ID;
int topline_id = _topLine.ID;
GLine nextbottom = bottom.NextLine;
if (from == to) {
_currentLine = top;
_currentLine.Clear();
}
else {
Remove(bottom);
_currentLine = new GLine(_width);
InsertBefore(top, _currentLine);
GLine c = _currentLine;
do {
c.ID = from++;
c = c.NextLine;
} while (c != nextbottom);
Debug.Assert(nextbottom == null || nextbottom.ID == from);
}
/*
//id maintainance
GLine c = newbottom;
GLine end = _currentLine.PrevLine;
while(c != end) {
c.ID = bottom_id--;
c = c.PrevLine;
}
*/
//!!次の２行はxtermをやっている間に発見して修正。 VT100では何かの必要があってこうなったはずなので後で調べること
//if(_scrollingTop<=_topLine.ID && _topLine.ID<=_scrollingBottom)
// _topLine = _currentLine;
while (topline_id < _topLine.ID)
_topLine = _topLine.PrevLine;
_invalidatedRegion.InvalidatedAll = true;
}
internal void ScrollDown(int from, int to) {
GLine top = FindLineOrEdge(from);
GLine bottom = FindLineOrEdge(to);
int top_id = top.ID;
GLine newtop = top.NextLine;
if (from == to) {
_currentLine = top;
_currentLine.Clear();
}
else {
Remove(top); //_topLineの調整は必要ならここで行われる
_currentLine = new GLine(_width);
InsertAfter(bottom, _currentLine);
//id maintainance
GLine c = newtop;
GLine end = _currentLine.NextLine;
while (c != end) {
c.ID = top_id++;
c = c.NextLine;
}
}
_invalidatedRegion.InvalidatedAll = true;
}
internal void ScrollUp(int from, int to)
{
GLine top = FindLineOrEdge(from);
GLine bottom = FindLineOrEdge(to);
if (top == null || bottom == null)
return; //�G���[�n���h�����O��FindLine�̒��ŁB�����ł̓N���b�V����������s��
int bottom_id = bottom.ID;
int topline_id = _topLine.ID;
GLine nextbottom = bottom.NextLine;
if (from == to) {
_currentLine = top;
_currentLine.Clear();
}
else {
Remove(bottom);
_currentLine = new GLine(_width);
InsertBefore(top, _currentLine);
GLine c = _currentLine;
do {
c.ID = from++;
c = c.NextLine;
} while (c != nextbottom);
Debug.Assert(nextbottom == null || nextbottom.ID == from);
}
/*
//id maintainance
GLine c = newbottom;
GLine end = _currentLine.PrevLine;
while(c != end) {
c.ID = bottom_id--;
c = c.PrevLine;
}
*/
//!!���̂Q�s��xterm�����Ă���Ԃɔ������ďC���B VT100�ł͉����̕K�v�������Ă����Ȃ����͂��Ȃ̂Ō�Œ��ׂ邱��
//if(_scrollingTop<=_topLine.ID && _topLine.ID<=_scrollingBottom)
// _topLine = _currentLine;
while (topline_id < _topLine.ID)
_topLine = _topLine.PrevLine;
_invalidatedRegion.InvalidatedAll = true;
}