public static List <DrawObject> GetDrawObjectsFromXML(Graphics graphics, string xml, float zoomMultiplier)
{
try
{
List <SerializableDrawObject> serializable = XmlSerialize.DeserializeObject <List <SerializableDrawObject> >(xml);
return(serializable.ConvertAll(o => DrawObject.FromSerialized(graphics, o, zoomMultiplier)));
}
catch
{
return(new List <DrawObject>());
}
}
private void undoRedo(UndoAction action, Stack <UndoAction> opposites, bool redo)
{
var opposite = new UndoAction();
if (action.UndoActionType == UndoActionType.AddDrawObject)
{
opposite.UndoActionType = UndoActionType.DeleteDrawObject;
}
else if (action.UndoActionType == UndoActionType.DeleteDrawObject)
{
opposite.UndoActionType = UndoActionType.AddDrawObject;
}
else
{
opposite.UndoActionType = action.UndoActionType;
}
if (action.UndoActionType == UndoActionType.DeleteDrawObject)
{
CurrentDrawObject = DrawObject.FromSerialized(_currGraphics, action.DrawObject, _zoomMultiplier);
opposite.DrawObject = CurrentDrawObject.GetSerializable();
_drawObjects.Add(CurrentDrawObject);
}
else
{
var drawObj = _drawObjects.First(d => d.ID == action.DrawObject.ID);
opposite.DrawObject = drawObj.GetSerializable();
if (action.UndoActionType == UndoActionType.AddDrawObject)
{
_drawObjects.Remove(drawObj);
}
else if (action.UndoActionType == UndoActionType.CropImage)
{
_cropRectangle = redo ?
(CurrentDrawObject as SelectDrawObject).GetSelectionRectangle()
: Rectangle.Empty;
LoadImage(true);
}
else
{
drawObj.Undo(action.DrawObject);
}
}
opposites.Push(opposite);
serializeDrawObjects();
redraw(true);
}