private bool MouseMoveAction(int x, int y, MouseButtons b)
{
switch (action)
{
case MouseAction.Select:
if (selrect != Rectangle.Empty)
{
parent.cview.InvalidatePage(selrect);
}
selrect.X = Math.Min(x, selx);
selrect.Y = Math.Min(y, sely);
selrect.Width = Math.Abs(x - selx);
selrect.Height = Math.Abs(y - sely);
parent.cview.InvalidatePage(selrect);
break;
case MouseAction.Move:
// on first move
if (first_move)
{
if (original_selected != null)
{
parent.SelectedObjects.Remove(original_selected);
original_selected = null;
}
if (moveitem != null)
{
if (moveitem is IStateObject)
{
movestates[moveitem] = (moveitem as IStateObject).GetState();
}
if (!(moveitem as GuiObject).selected)
{
parent.SelectedObjects.Clear();
parent.SelectedObjects.Add(moveitem as GuiObject);
}
}
else
{
parent.SelectedObjects.Clear();
foreach (GuiObject t in movelist)
{
parent.SelectedObjects.Add(t);
}
foreach (GuiObject t in movelist)
{
if (t is IStateObject)
{
movestates[t] = (t as IStateObject).GetState();
}
}
}
AddAssociatedObjects();
first_move = false;
}
// usual move
if (moveitem != null)
{
moveitem.Moving(x, y, ref moveux, ref moveuy);
}
else
{
foreach (IMoveMultiple i in movelist)
{
i.ShiftShape(x - selx, y - sely);
}
selx = x;
sely = y;
}
break;
case MouseAction.Scroll:
parent.cview.AdjustPageCoords(selx - x, sely - y);
first_move = false;
break;
case MouseAction.CreateConnection:
conn.Invalidate();
conn.InvalidateTemporary();
conn.second.item = parent.FindItem(x, y, out moveux, out moveuy, true) as IAcceptConnection;
if (conn.second.item == null || conn.second.item == conn.first.item)
{
conn.second.x = x;
conn.second.y = y;
conn.second.item = null;
}
else
{
conn.second.item.coord_nearest(x, y, out conn.second.ux, out conn.second.uy);
conn.second.UpdatePosition(true);
}
conn.DoCreationFixup();
conn.InvalidateTemporary();
conn.Invalidate();
break;
}
return(action != MouseAction.Scroll);
}
