Internal operations associated with undo/redo stack

Functions
void	teditor::Buffer::applyInsertOp (OpData &op, bool pushToStack=true)
	Insert characters into the buffer. More...
void	teditor::Buffer::applyDeleteOp (OpData &op)
	Delete characters/regions from the buffer. More...
void	teditor::Buffer::addLines (const RemovedLines &rlines)
void	teditor::Buffer::removeLines (const RemovedLines &rlines)
void	teditor::Buffer::pushNewOp (OpData &op)
void	teditor::Buffer::clearStack (OpStack &st)

Detailed Description

Function Documentation

addLines()

void teditor::Buffer::addLines ( const RemovedLines &  rlines )

protected

add the previously removed lines back into the buffer

applyDeleteOp()

void teditor::Buffer::applyDeleteOp ( OpData &  op )

protected

Delete characters/regions from the buffer.

Parameters

op	the info on what, how and where to delete from

applyInsertOp()

void teditor::Buffer::applyInsertOp ( OpData &  op, bool  pushToStack = true  )

protected

Insert characters into the buffer.

Parameters

op	the info on what, how and where to insert
pushToStack	whether to push this op into the 'undoStack'

clearStack()

void teditor::Buffer::clearStack ( OpStack &  st )

protected

clear the input stack (esp useful while clearing redo stack)

pushNewOp()

void teditor::Buffer::pushNewOp ( OpData &  op )

protected

pushing a new op onto the undo stack. It has the side-effect of clearing the redo stack so far accumulated!

removeLines()

void teditor::Buffer::removeLines ( const RemovedLines &  rlines )

protected

remove the lines as part of the redo operation on keepRemoveLines