private void UndoRedo()
{
int index = 0;
//Loop through each element and write the contents of the matching momento back into the element
foreach (Label label in Labels)
{
//Get a momento of the label in its current state
LabelMomento momento = new LabelMomento(label);
//Write the momento into the element and save the new momento
_momentos[index].WriteItem(label);
_momentos[index] = momento;
index++;
}
}
//Implementation
public override void Execute()
{
if (Labels == null)
{
return;
}
//Create the momentos of the current labels
_momentos = new List <LabelMomento>();
//Loop through and add a momento for each label
foreach (Label label in _labels)
{
LabelMomento momento = new LabelMomento(label);
_momentos.Add(momento);
}
//Make comand lower case
string command = CommandText.ToLower();
switch (command)
{
case "bold":
Controller.Suspend();
DoCommandText(true, false, false, false);
Controller.Resume();
Controller.Invalidate();
break;
case "italic":
Controller.Suspend();
DoCommandText(false, true, false, false);
Controller.Resume();
Controller.Invalidate();
break;
case "strikeout":
Controller.Suspend();
DoCommandText(false, false, true, false);
Controller.Resume();
Controller.Invalidate();
break;
case "underline":
Controller.Suspend();
DoCommandText(false, false, false, true);
Controller.Resume();
Controller.Invalidate();
break;
case "align left":
Controller.Suspend();
DoCommandAlign(true, false, false);
Controller.Resume();
Controller.Invalidate();
break;
case "align center":
Controller.Suspend();
DoCommandAlign(false, true, false);
Controller.Resume();
Controller.Invalidate();
break;
case "align right":
Controller.Suspend();
DoCommandAlign(false, false, true);
Controller.Resume();
Controller.Invalidate();
break;
case "align top":
Controller.Suspend();
DoCommandVerticalAlign(true, false, false);
Controller.Resume();
Controller.Invalidate();
break;
case "align middle":
Controller.Suspend();
DoCommandVerticalAlign(false, true, false);
Controller.Resume();
Controller.Invalidate();
break;
case "align bottom":
Controller.Suspend();
DoCommandVerticalAlign(false, false, true);
Controller.Resume();
Controller.Invalidate();
break;
case "font":
Controller.Suspend();
DoCommandFont(Controller.Model.SelectedShapes(), CommandValue);
Controller.Resume();
Controller.Invalidate();
break;
case "font size":
Controller.Suspend();
DoCommandFontSize(Controller.Model.SelectedShapes(), CommandValue);
Controller.Resume();
Controller.Invalidate();
break;
}
}