public DeletePreviousCharacterAction(TextCaret caret)
{
Debug.Assert(caret.GetPreviousPosition().IsValid, "Caret previous position not valid");
caret = caret.GetPreviousPosition();
CursorHandle = new DocumentCursorHandle(caret);
OriginalText = caret.CharacterAfter.Text;
}
/// <summary> Constructor. </summary>
/// <param name="previousBlock"> The previous block that will have <paramref name="nextBlock"/>
/// merged into. </param>
/// <param name="nextBlock"> The next block that will be merged into
/// <paramref name="previousBlock"/>. </param>
/// <param name="originalCaretPosition"> The position at which the caret is at. </param>
public MergeTextBlockAction(TextBlock previousBlock, TextBlock nextBlock, DocumentCursorHandle originalCaretPosition)
{
Debug.Assert(previousBlock.NextBlock == nextBlock);
_originalCaretPosition = originalCaretPosition;
_previousPath = previousBlock.GetBlockPath();
_nextPath = nextBlock.GetBlockPath();
_endOfPreviousBlockHandle = new DocumentCursorHandle(previousBlock.Content.GetCaretAtEnd());
}
/// <summary> Constructor. </summary>
/// <param name="insertionPoint"> The point at which text should be inserted. </param>
/// <param name="text"> The text to insert. </param>
public InsertTextUndoableAction(DocumentCursorHandle insertionPoint, string text)
{
_insertionPoint = insertionPoint;
Text = text;
}
/// <summary> Constructor. </summary>
/// <param name="handle"> The location at which the paragraph should be broken. </param>
public BreakTextBlockAction(DocumentCursorHandle handle)
{
_handle = handle;
}
public DeleteNextCharacterAction(TextCaret caret)
{
_cursorHandle = new DocumentCursorHandle(caret);
_originalText = caret.CharacterAfter.Text;
}
