/// <summary>
/// Is visible SubItem of specified type in current Style and State?
/// </summary>
/// <param name="itemType"></param>
/// <returns></returns>
protected bool IsVisibleChildItemType(ChildItemType itemType)
{
bool e = this.IsEnabledChildItemType(itemType);
bool s = this.IsSelected;
bool o = this.CanDragOnlySelected;
bool v = (this.InteractiveState == GInteractiveState.MouseOver);
bool d = (this.InteractiveState == GInteractiveState.LeftDown || this.InteractiveState == GInteractiveState.RightDown);
bool g = (this.InteractiveState == GInteractiveState.LeftDrag || this.InteractiveState == GInteractiveState.RightDrag);
bool m = (v || d || g);
switch (itemType)
{
case ChildItemType.Area: return(true);
case ChildItemType.Border: return(s || (!o && m)); // Border is visible: only when Selected, or (!DragOnlySelected and with mouse)
case ChildItemType.TopLeft:
case ChildItemType.Top:
case ChildItemType.TopRight:
case ChildItemType.Right:
case ChildItemType.BottomRight:
case ChildItemType.Bottom:
case ChildItemType.BottomLeft:
case ChildItemType.Left: return(e && ((s && m) || (!o && m))); // Grip: when enabled and ((selected and mouse) or (!DragOnlySelected and with mouse))
}
return(false);
}
/// <summary>
/// Is enabled SubItem of specified type in current Style?
/// </summary>
/// <param name="itemType"></param>
/// <returns></returns>
protected bool IsEnabledChildItemType(ChildItemType itemType)
{
bool rx = this.CanItemResizeX;
bool ry = this.CanItemResizeY;
bool ra = this.CanItemResize;
switch (itemType)
{
case ChildItemType.Area: return(true);
case ChildItemType.Border: return(false);
case ChildItemType.TopLeft: return(ra);
case ChildItemType.Top: return(ry);
case ChildItemType.TopRight: return(ra);
case ChildItemType.Right: return(rx);
case ChildItemType.BottomRight: return(ra);
case ChildItemType.Bottom: return(ry);
case ChildItemType.BottomLeft: return(ra);
case ChildItemType.Left: return(rx);
}
return(false);
}
/// <summary>
/// Konstruktor
/// </summary>
/// <param name="owner"></param>
/// <param name="itemType"></param>
/// <param name="overCursorType"></param>
/// <param name="dragCursorType"></param>
/// <param name="activeOverhead"></param>
public ChildItem(MovableItem owner, ChildItemType itemType, SysCursorType?overCursorType, SysCursorType?dragCursorType, int activeOverhead)
{
this.Parent = owner;
this.ItemType = itemType;
this.OverCursorType = overCursorType;
this.DragCursorType = dragCursorType;
this.InteractivePadding = new Padding(activeOverhead);
this.Is.GetEnabled = this._GetEnabled;
this.Is.GetVisible = this._GetVisible;
}
