// ========================================
// method
// ========================================
public override void Execute()
{
_command = null;
int blockIndex, charIndexInBlock;
var block = _target.GetBlockAtLocal(_index, out blockIndex, out charIndexInBlock);
var isLastIndexInLine = false;
if (charIndexInBlock == 0)
{
/// blockの最初の文字を指している場合，blockの直前に空のBlockを作成して挿入する
var para = new Paragraph();
block.Transfer(para);
_command = new InsertBlockToStyledTextCommand(_target, para, blockIndex);
}
else
{
/// blockの途中の文字を指している場合，blockをそこで分割する
int lineIndex, charIndexInLine;
var line = block.GetLineSegmentAtLocal(charIndexInBlock, out lineIndex, out charIndexInLine);
isLastIndexInLine = charIndexInLine == line.Length - 1;
if (charIndexInLine == 0)
{
/// LineSegmentの先頭を指している場合
_command = new InsertLineSegmentToBlockCommand(block, new LineSegment(), lineIndex);
_command = _command.Chain(new SplitBlockCommand(block, lineIndex));
}
else
{
_command = new EnsureBlockBreakCommand(_target, _index);
}
}
_command.Execute();
if (charIndexInBlock != 0 && isLastIndexInLine && block.HasNextSibling)
{
var nextPara = block.NextSibling as Paragraph;
var setPara = new SetParagraphPropertiesCommand(
nextPara,
GetNewPadding(nextPara.GetDefaultPadding(ParagraphKind.Normal), nextPara.ListKind, nextPara.ListLevel),
//nextPara.Padding,
nextPara.LineSpace,
nextPara.HorizontalAlignment,
ParagraphKind.Normal,
nextPara.ListKind,
nextPara.ListLevel,
nextPara.ListState
);
setPara.Execute();
_command.Chain(setPara);
}
}