public override void InvokeUndo(InternalTextLayerController textLayer)
{
textLayer.CurrentLineNumber = _startLineNumber;
textLayer.TryMoveCaretTo(_startCharIndex);
textLayer.StartSelect();
textLayer.CurrentLineNumber = _endLineNumber;
textLayer.TryMoveCaretTo(_endCharIndex);
textLayer.EndSelect();
}
private void button2_Click(object sender, EventArgs e)
{
//1. create text flow layer
EditableTextFlowLayer flowLayer = new EditableTextFlowLayer();
//
//2.
MyTextEditRenderBox renderBox = new MyTextEditRenderBox();
//3. listen important event from text layer
MyTextSurfaceListener listener = new MyTextSurfaceListener();
renderBox.SetTextSurfaceEventListner(listener);
//4. create text layer controller
//this simulate user's input
InternalTextLayerController layerController = new InternalTextLayerController(renderBox, flowLayer);
layerController.CurrentLineNumber = 0;
layerController.TryMoveCaretTo(-1);
layerController.AddCharToCurrentLine('a');
layerController.AddCharToCurrentLine('b');
layerController.AddCharToCurrentLine('C');
layerController.SplitCurrentLineIntoNewLine();
layerController.AddCharToCurrentLine('x');
layerController.AddCharToCurrentLine('Y');
//------------
layerController.CurrentLineNumber = 0; //move to line 0 again //should be 1?
//------------
//
StringBuilder stbuilder = new StringBuilder();
layerController.CopyAllToPlainText(stbuilder);
//
System.Diagnostics.Debug.WriteLine(stbuilder.ToString());
}
public override void InvokeRedo(InternalTextLayerController textLayer)
{
textLayer.CurrentLineNumber = _startLineNumber;
textLayer.TryMoveCaretTo(_startCharIndex);
if (_singleInsertTextRun != null)
{
textLayer.AddTextRunToCurrentLine(_singleInsertTextRun);
}
else
{
textLayer.AddTextRunsToCurrentLine(_insertingTextRuns);
}
}
public override void InvokeRedo(InternalTextLayerController textLayer)
{
textLayer.CurrentLineNumber = _startLineNumber;
textLayer.TryMoveCaretTo(_startCharIndex);
textLayer.DoDelete();
}
public override void InvokeUndo(InternalTextLayerController textLayer)
{
textLayer.CurrentLineNumber = _startLineNumber;
textLayer.TryMoveCaretTo(_startCharIndex);
textLayer.SplitCurrentLineIntoNewLine();
}
