/// <summary>
/// Deletes text from the buffer.
/// </summary>
/// <param name="operation">The operation to perform.</param>
/// <returns>
/// The results to the changes to the buffer.
/// </returns>
protected override LineBufferOperationResults Do(
DeleteTextOperation operation)
{
// Get the text from the buffer, insert the text, and put it back.
int lineIndex = operation.TextRange.LinePosition.GetLineIndex(lines.Count);
string lineText = lines[lineIndex];
int startCharacterIndex =
operation.TextRange.BeginCharacterPosition.GetCharacterIndex(
lineText,
operation.TextRange.EndCharacterPosition,
WordSearchDirection.Left);
int endCharacterIndex =
operation.TextRange.EndCharacterPosition.GetCharacterIndex(
lineText,
operation.TextRange.BeginCharacterPosition,
WordSearchDirection.Right);
string newLine = lineText.Remove(
startCharacterIndex, endCharacterIndex - startCharacterIndex);
lines[lineIndex] = newLine;
// Fire a line changed operation.
RaiseLineChanged(new LineChangedArgs(lineIndex));
// Return the appropriate results.
return(new LineBufferOperationResults(operation.TextRange.BeginTextPosition));
}
public IDeleteTextCommand <OperationContext> CreateDeleteTextCommand(
SingleLineTextRange range)
{
var operation = new DeleteTextOperation(range);
return(operation);
}
protected override LineBufferOperationResults Do(
DeleteTextOperation operation)
{
//// We only need a read-lock on the blocks just to make sure nothing moves
//// underneath us while we get the block key.
//using (blocks.AcquireLock(RequestLock.Read))
//{
// // Create the command and submit it to the project's command manager.
// Block block = blocks[operation.LineIndex];
// var command =
// new DeleteTextCommand(
// new BlockPosition(block.BlockKey, operation.CharacterRange.StartIndex),
// operation.CharacterRange.Length);
// commands.Do(command);
// // Fire a line changed operation.
// RaiseLineChanged(new LineChangedArgs(operation.LineIndex));
// // Construct the operation results for the delete from information in the
// // command manager.
// var results =
// new LineBufferOperationResults(
// new TextPosition(blocks.IndexOf(block), commands.LastPosition.TextIndex));
// return results;
//}
throw new NotImplementedException();
}
/// <summary>
/// Deletes text from the buffer.
/// </summary>
/// <param name="operation">The operation to perform.</param>
/// <returns>
/// The results to the changes to the buffer.
/// </returns>
protected override LineBufferOperationResults Do(
DeleteTextOperation operation)
{
LineBufferOperationResults results = base.Do(operation);
int lineIndex = operation.TextRange.FirstLinePosition.GetLineIndex(LineCount);
return(CheckForStyleChanged(lineIndex, results));
}
protected override LineBufferOperationResults Do(
DeleteTextOperation operation)
{
//// We only need a read-lock on the blocks just to make sure nothing moves
//// underneath us while we get the block key.
//using (blocks.AcquireLock(RequestLock.Read))
//{
// // Create the command and submit it to the project's command manager.
// Block block = blocks[operation.LineIndex];
// var command =
// new DeleteTextCommand(
// new BlockPosition(block.BlockKey, operation.CharacterRange.StartIndex),
// operation.CharacterRange.Length);
// commands.Do(command);
// // Fire a line changed operation.
// RaiseLineChanged(new LineChangedArgs(operation.LineIndex));
// // Construct the operation results for the delete from information in the
// // command manager.
// var results =
// new LineBufferOperationResults(
// new TextPosition(blocks.IndexOf(block), commands.LastPosition.TextIndex));
// return results;
//}
throw new NotImplementedException();
}
