// ========================================
// method
// ========================================
public override void Execute()
{
_command = null;
int inlineOffset = 0;
int charIndexInInline = 0;
var inline = _target.GetInlineAt(_index, out charIndexInInline, out inlineOffset);
if (inline.IsLineEndCharacter || inline.IsAnchorCharacter)
{
/// _indexのinlineがControlCharならば
if (_target.HasPrevInline(inline))
{
/// 文頭でなければ
var prev = _target.GetPrevInline(inline);
if (prev.IsLineEndCharacter || prev.IsAnchorCharacter)
{
/// inlineの前がControlCharacterなら直前にrunを追加
var parent = inline.Parent as LineSegment;
var index = parent._Inlines.IndexOf(inline);
var newRun = new Run(_text);
if (prev.IsLineEndCharacter && prev.HasPrevSibling)
{
/// inlineの前のLineEndCharacterの前に
/// ControlCharacterでないinlineがあればtransfer
var para = parent.Parent as Paragraph;
var pp = prev.PrevSibling as Inline;
var ppLine = pp.Parent;
var ppPara = ppLine == null ? null : ppLine.Parent as Paragraph;
var ppParaIsNormal = ppPara != null && ppPara.ParagraphKind == ParagraphKind.Normal;
var ppParaIsEqual = ppPara != null && ppPara.ParagraphKind == para.ParagraphKind;
if (pp != null && !pp.IsLineEndCharacter && !pp.IsAnchorCharacter && ppParaIsNormal && ppParaIsEqual)
{
var ppRun = pp as Run;
if (ppRun != null)
{
/// Linkは写さない
ppRun.TransferWithoutLink(newRun);
}
else
{
pp.Transfer(newRun);
}
}
else if (para.ParagraphKind != ParagraphKind.Normal)
{
newRun.Font = _target.GetDefaultFont(para.ParagraphKind);
}
}
_command = new InsertInlineToLineSegmentCommand(parent, newRun, index);
}
else
{
var run = prev as Run;
if (run != null && run.HasLink)
{
/// prevにlinkが設定されている場合はlinkを引き継がないように直前にrunを追加
var parent = inline.Parent as LineSegment;
var index = parent._Inlines.IndexOf(inline);
var newRun = new Run(_text);
run.TransferWithoutLink(newRun);
_command = new InsertInlineToLineSegmentCommand(parent, newRun, index);
}
else
{
_command = new AppendStringToInlineCommand(prev, _text);
}
}
}
else
{
/// 文頭の場合prevがないので挿入しておく
var first = _target.Blocks.First();
var newRun = new Run(_text);
_target.Transfer(newRun);
_command = new InsertInlineBeforeToBlockCommand(first, newRun);
}
}
else
{
/// _indexのinlineがControlCharでなければ
if (_index == inlineOffset)
{
/// inlineの最初の文字を指している場合，
/// StyledText中で一番最初のinlineだったり，
/// ControlCharacter直後のinlineの場合はinlineにInsert，
/// そうでなければ直前のinlineにAppend
if (_target.HasPrevInline(inline))
{
var prev = _target.GetPrevInline(inline);
if (prev.IsLineEndCharacter || prev.IsAnchorCharacter)
{
_command = new InsertStringToInlineCommand(inline, _text, charIndexInInline);
}
else
{
var run = prev as Run;
if (run != null && run.HasLink)
{
/// prevにlinkが設定されている場合はlinkを引き継がないように直前にrunを追加
var parent = inline.Parent as LineSegment;
var index = parent._Inlines.IndexOf(inline);
var newRun = new Run(_text);
run.TransferWithoutLink(newRun);
_command = new InsertInlineToLineSegmentCommand(parent, newRun, index);
}
else
{
_command = new AppendStringToInlineCommand(prev, _text);
}
}
}
else
{
var run = inline as Run;
if (run != null && run.HasLink)
{
/// inlineにlinkを設定されている場合はlinkにならないように直前にrunを挿入
var parent = inline.Parent as LineSegment;
var index = parent._Inlines.IndexOf(inline);
var newRun = new Run(_text);
run.TransferWithoutLink(newRun);
_command = new InsertInlineToLineSegmentCommand(parent, newRun, index);
}
else
{
/// inlineにlinkが設定されていなければそのまま文字列をinsert
_command = new InsertStringToInlineCommand(inline, _text, charIndexInInline);
}
}
}
else
{
/// inlineの最初でなければ普通にInsert
_command = new InsertStringToInlineCommand(inline, _text, charIndexInInline);
}
}
_command.Execute();
}