internal GLine InverseRange(int from, int to)
{
ExpandBuffer(Math.Max(from + 1, to)); //激しくリサイズしたときなどにこの条件が満たせないことがある
Debug.Assert(from >= 0 && from < _text.Length);
if (from < _text.Length && _text[from] == WIDECHAR_PAD)
{
from--;
}
if (to > 0 && to - 1 < _text.Length && _text[to - 1] == WIDECHAR_PAD)
{
to--;
}
GLine ret = new GLine(_text, null);
ret.ID = _id;
ret.EOLType = _eolType;
//装飾の配列をセット
TextDecoration[] dec = new TextDecoration[_text.Length];
GWord w = _firstWord;
while (w != null)
{
Debug.Assert(w.Decoration != null);
dec[w.Offset] = w.Decoration;
w = w.Next;
}
//反転開始点
TextDecoration original = null;
TextDecoration inverse = null;
for (int i = from; i >= 0; i--)
{
if (dec[i] != null)
{
original = dec[i];
break;
}
}
Debug.Assert(original != null);
inverse = (TextDecoration)original.Clone();
inverse.Inverse();
dec[from] = inverse;
//範囲に渡って反転作業
for (int i = from + 1; i < to; i++)
{
if (i < dec.Length && dec[i] != null)
{
original = dec[i];
inverse = (TextDecoration)original.Clone();
inverse.Inverse();
dec[i] = inverse;
}
}
if (to < dec.Length && dec[to] == null)
{
dec[to] = original;
}
//これに従ってGWordを作る
w = null;
for (int i = dec.Length - 1; i >= 0; i--)
{
char ch = _text[i];
if (dec[i] != null && ch != '\0')
{
int j = i;
if (ch == WIDECHAR_PAD)
{
j++;
}
GWord ww = new GWord(dec[i], j, CalcCharGroup(ch));
ww.Next = w;
w = ww;
}
}
ret.Append(w);
return(ret);
}
internal GLine InverseRange(int from, int to)
{
ExpandBuffer(Math.Max(from+1,to)); //���������T�C�Y�����Ƃ��Ȃǂɂ��̏�����������Ȃ����Ƃ�����
Debug.Assert(from>=0 && from<_text.Length);
if(from<_text.Length && _text[from]==WIDECHAR_PAD) from--;
if(to>0 && to-1<_text.Length && _text[to-1]==WIDECHAR_PAD) to--;
GLine ret = new GLine(_text, null);
ret.ID = _id;
ret.EOLType = _eolType;
//�����̔z���Z�b�g
TextDecoration[] dec = new TextDecoration[_text.Length];
GWord w = _firstWord;
while(w!=null) {
Debug.Assert(w.Decoration!=null);
dec[w.Offset] = w.Decoration;
w = w.Next;
}
//���]�J�n�_
TextDecoration original = null;
TextDecoration inverse = null;
for(int i=from; i>=0; i--) {
if(dec[i]!=null) {
original = dec[i];
break;
}
}
Debug.Assert(original!=null);
inverse = (TextDecoration)original.Clone();
inverse.Inverse();
dec[from] = inverse;
//�͈͂ɓn���Ĕ��]���
for(int i=from+1; i<to; i++) {
if(i<dec.Length && dec[i]!=null) {
original = dec[i];
inverse = (TextDecoration)original.Clone();
inverse.Inverse();
dec[i] = inverse;
}
}
if(to<dec.Length && dec[to]==null) dec[to] = original;
//����ɏ]����GWord����
w = null;
for(int i=dec.Length-1; i>=0; i--) {
char ch = _text[i];
if(dec[i]!=null && ch!='\0') {
int j = i;
if(ch==WIDECHAR_PAD) j++;
GWord ww = new GWord(dec[i], j, CalcCharGroup(ch));
ww.Next = w;
w = ww;
}
}
ret.Append(w);
return ret;
}
//indexの位置の表示を反転した新しいGLineを返す
//inverseがfalseだと、GWordの分割はするがDecorationの反転はしない。ヒクヒク問題の対処として実装。
internal GLine InverseCaret(int index, bool inverse, bool underline)
{
ExpandBuffer(index + 1);
if (_text[index] == WIDECHAR_PAD)
{
index--;
}
GLine ret = new GLine(_text, null);
ret.ID = _id;
ret.EOLType = _eolType;
GWord w = _firstWord;
int nextoffset = 0;
while (w != null)
{
nextoffset = WordNextOffset(w);
if (w.Offset <= index && index < nextoffset)
{
//!!tailから順に連結した方が効率はよい
if (w.Offset < index)
{
GWord head = new GWord(w.Decoration, w.Offset, w.CharGroup);
ret.Append(head);
}
TextDecoration dec = (TextDecoration)w.Decoration.Clone();
if (inverse)
{
//色つきキャレットのサポート
dec.ToCaretStyle();
}
if (underline)
{
dec.Underline = true;
}
GWord mid = new GWord(dec, index, w.CharGroup);
ret.Append(mid);
if (index + CalcDisplayLength(_text[index]) < nextoffset)
{
GWord tail = new GWord(w.Decoration, index + CalcDisplayLength(_text[index]), w.CharGroup);
ret.Append(tail);
}
}
else
{
ret.Append(w.StandAloneClone());
}
w = w.Next;
}
//!!この、キャレット位置にスペースを入れるのはInverseとは違う処理であるから分離すること
if (nextoffset <= index)
{
while (nextoffset <= index)
{
Debug.Assert(nextoffset < ret.Text.Length);
ret.Text[nextoffset++] = ' ';
}
TextDecoration dec = TextDecoration.ClonedDefault();
if (inverse)
{
dec.ToCaretStyle();
}
if (underline)
{
dec.Underline = true;
}
ret.Append(new GWord(dec, index, CharGroup.SingleByte));
}
return(ret);
}
//index�̈ʒu�̕\���]�����V����GLine��Ԃ�
//inverse��false���ƁAGWord�̕����͂��邪Decoration�̔��]�͂��Ȃ��B�q�N�q�N���̑Ώ��Ƃ��Ď����B
internal GLine InverseCaret(int index, bool inverse, bool underline)
{
ExpandBuffer(index+1);
if(_text[index]==WIDECHAR_PAD) index--;
GLine ret = new GLine(_text, null);
ret.ID = _id;
ret.EOLType = _eolType;
GWord w = _firstWord;
int nextoffset = 0;
while(w!=null) {
nextoffset = WordNextOffset(w);
if(w.Offset<=index && index<nextoffset) {
//!!tail���珇�ɘA���������������͂悢
if(w.Offset<index) {
GWord head = new GWord(w.Decoration, w.Offset, w.CharGroup);
ret.Append(head);
}
TextDecoration dec = (TextDecoration)w.Decoration.Clone();
if(inverse) {
//�F���L�����b�g�̃T�|�[�g
dec.ToCaretStyle();
}
if(underline) dec.Underline = true;
GWord mid = new GWord(dec, index, w.CharGroup);
ret.Append(mid);
if(index+CalcDisplayLength(_text[index]) < nextoffset) {
GWord tail = new GWord(w.Decoration, index+CalcDisplayLength(_text[index]), w.CharGroup);
ret.Append(tail);
}
}
else
ret.Append(w.StandAloneClone());
w = w.Next;
}
//!!���́A�L�����b�g�ʒu�ɃX�y�[�X������̂�Inverse�Ƃ͈Ⴄ�����ł��邩�番�����邱��
if(nextoffset<=index) {
while(nextoffset<=index) {
Debug.Assert(nextoffset < ret.Text.Length);
ret.Text[nextoffset++] = ' ';
}
TextDecoration dec = TextDecoration.ClonedDefault();
if(inverse) {
dec.ToCaretStyle();
}
if(underline) dec.Underline = true;
ret.Append(new GWord(dec, index, CharGroup.SingleByte));
}
return ret;
}
