public override void HandleMouseDrag(Point mousePoint)
{
if (!IsSelecting)
{
ActiveChild.StartSelection();
IsSelecting = true;
}
ActiveChild.HandleMouseDrag(mousePoint);
AdjustCarets();
}
public override bool ConsumeMouseClick(Point mousePoint)
{
if (Keyboard.IsKeyDown(Key.LeftShift) || Keyboard.IsKeyDown(Key.RightShift))
{
IsSelecting = true;
ActiveChild.StartSelection();
ActiveChild.HandleMouseDrag(mousePoint);
}
else
{
ActiveChild.ConsumeMouseClick(mousePoint); //never forget, EquationRoot has only one child at all times!!
IsSelecting = true; //else DeSelect() might not work!
DeSelect();
}
AdjustCarets();
return(true);
}