public override void redo()
{
// and add this ruler in the list of the layer
mRulerLayer.addRulerItem(mRulerItem, mRulerItemIndex);
// change the selection to the new added text (should be done after the add)
mRulerLayer.clearSelection();
mRulerLayer.addObjectInSelection(mRulerItem);
}
public override void undo()
{
// and add all the texts in the reverse order
for (int i = mRulers.Count - 1; i >= 0; --i)
{
mRulerLayer.addRulerItem(mRulers[i] as LayerRuler.RulerItem, mRulerIndex[i]);
}
}
public override void redo()
{
// clear the selection first, because we want to select only all the added rulers
mRulerLayer.clearSelection();
// add all the rulers (by default all the rulers index are initialized with -1
// so the first time they are added, we just add them at the end,
// after the index is record in the array during the undo)
// We must add all the rulers in the reverse order to avoid crash (insert with an index greater than the size of the list)
for (int i = mItems.Count - 1; i >= 0; --i)
{
mRulerLayer.addRulerItem(mItems[i] as LayerRuler.RulerItem, mItemIndex[i]);
mRulerLayer.addObjectInSelection(mItems[i]);
}
}