public DisplayObject Convert(DisplayObjectResource displayObjectResource)
{
var existingDisplayObject = CreatedDisplayObjects.Where(obj => obj.Id == displayObjectResource.Id).FirstOrDefault();
if (existingDisplayObject != null)
{
if (existingDisplayObject is Text)
{
Assign(existingDisplayObject as Text, displayObjectResource);
}
else if (existingDisplayObject is Picture)
{
Assign(existingDisplayObject as Picture, displayObjectResource);
}
return(existingDisplayObject);
}
else
{
if (displayObjectResource.OwnText != null)
{
var newText = new Text();
CreatedDisplayObjects.Add(newText);
Assign(newText, displayObjectResource);
return(newText);
}
else if (displayObjectResource.Image != null)
{
var newPicture = new Picture();
CreatedDisplayObjects.Add(newPicture);
Assign(newPicture, displayObjectResource);
return(newPicture);
}
return(null);
}
}
void Assign(Picture picture, DisplayObjectResource displayObjectResource)
{
picture.Id = displayObjectResource.Id;
if (displayObjectResource.Title != null)
{
picture.Title = displayObjectResource.Title;
}
if (displayObjectResource.PositionInIntroduction != null)
{
picture.PositionInIntroduction = displayObjectResource.PositionInIntroduction;
}
if (displayObjectResource.Image != null)
{
picture.Image = displayObjectResource.Image;
}
}
void Assign(Text text, DisplayObjectResource displayObjectResource)
{
text.Id = displayObjectResource.Id;
if (displayObjectResource.Title != null)
{
text.Title = displayObjectResource.Title;
}
if (displayObjectResource.PositionInIntroduction != null)
{
text.PositionInIntroduction = displayObjectResource.PositionInIntroduction;
}
if (displayObjectResource.OwnText != null)
{
text.OwnText = displayObjectResource.OwnText;
}
}
