/// <summary>
/// Executes command.
/// </summary>
/// <param name="document">Document to run command.</param>
public void Execute(ITextEditorDocument document)
{
if (document == null)
{
return;
}
this.line = document.LineNumberByIndex(this.caretIndex);
this.position = document.CaretPositionInLineByIndex(this.caretIndex);
this.changedDocument = document;
int endCaretIndex = this.caretIndex + this.length;
if (endCaretIndex > document.Text.Length)
{
endCaretIndex = document.Text.Length;
}
int endPosition = document.CaretPositionInLineByIndex(endCaretIndex);
int endLineIndex = document.LineNumberByIndex(endCaretIndex);
this.removedLines = document.AllLines.GetRange(this.line, endLineIndex - this.line + 1);
string paragraph = document.AllLines[this.line];
string lineToMove = document.AllLines[endLineIndex].Substring(endPosition);
if (paragraph.Length > this.position)
{
paragraph = paragraph.Remove(this.position);
}
document.ChangeLineAtIndex(this.line, paragraph + lineToMove);
document.RemoveLines(this.line + 1, endLineIndex - this.line);
}
