/// <summary>
/// Add new object to draw area.
/// Function is called when user left-clicks draw area,
/// and one of ToolObject-derived tools is active.
/// </summary>
/// <param name="drawArea"></param>
/// <param name="o"></param>
protected void AddNewObject(DrawArea drawArea, DrawObject o)
{
drawArea.GraphicsList.UnselectAll();
o.Selected = true;
drawArea.GraphicsList.Add(o);
drawArea.Capture = true;
drawArea.Refresh();
drawArea.SetDirty();
}
/// <summary>
/// Replace object in specified place.
/// Used for Undo.
/// </summary>
public void Replace(int index, DrawObject obj)
{
if (index >= 0 && index < graphicsList.Count)
{
graphicsList.RemoveAt(index);
graphicsList.Insert(index, obj);
}
}
/// <summary>
/// Insert object to specified place.
/// Used for Undo.
/// </summary>
public void Insert(int index, DrawObject obj)
{
if ( index >= 0 && index < graphicsList.Count )
{
graphicsList.Insert(index, obj);
}
}
public void Add(DrawObject obj)
{
// insert to the top of z-order
graphicsList.Insert(0, obj);
}
/// <summary>
/// Copy fields from this instance to cloned instance drawObject.
/// Called from Clone functions of derived classes.
/// </summary>
protected void FillDrawObjectFields(DrawObject drawObject)
{
drawObject.selected = this.selected;
drawObject.color = this.color;
drawObject.penWidth = this.penWidth;
drawObject.ID = this.ID;
}
// Create this command with DrawObject instance added to the list
public CommandAdd(DrawObject drawObject) : base()
{
// Keep copy of added object
this.drawObject = drawObject.Clone();
}
