/// <summary>
/// Called when a parent controls is resized.
/// </summary>
/// <param name="sender">Resized control.</param>
protected virtual void OnParentResized(UIComponent sender)
{
}
/// <summary>
/// Asks children for their mouse status, and invokes MouseOut event
/// for this control if necessary.
/// </summary>
/// <param name="args">Mouse event arguments.</param>
/// <returns>Control asking for MouseOver event, otherwise null.</returns>
internal UIComponent CheckMouseStatus(MouseEventArgs args)
{
UIComponent result = null;
// Check if control can receive MouseOver and MouseOut events
if (!this.isAnimating)
{
// Check if MouseOut event should be invoked
bool mouseOver = CheckCoordinates(args.Position.X, args.Position.Y);
if (this.isMouseOver)
{
if (!mouseOver)
{
this.isMouseOver = false;
MouseOut.Invoke(args);
}
}
if (mouseOver)
{
float zTemp = 0.0f;
// Ask each child to check it's mouse status
foreach (UIComponent control in this.controls)
{
// Keep track of highest z-order
if (control.ZOrder >= zTemp)
{
UIComponent child = control.CheckMouseStatus(args);
if (child != null)
{
// MouseOut last result
if (result != null && result.IsMouseOver)
{
result.InvokeMouseOut(args);
}
// Set result and update highest z-order
result = child;
zTemp = control.ZOrder;
}
}
}
// If no child requires the event, see if this control can
// take it.
if (result == null && this.canHaveFocus)
{
result = this;
}
}
else
{
// Ensure each control can receive MouseOut event
foreach (UIComponent control in this.controls)
{
control.CheckMouseStatus(args);
}
}
}
return(result);
}
/// <summary>
/// Called when a parent control is moved. Invokes Move event.
/// </summary>
/// <param name="sender">Moved control.</param>
protected virtual void OnParentMoved(UIComponent sender)
{
Move.Invoke(this);
}
/// <summary>
/// Simply refreshes, override to handle event.
/// </summary>
/// <param name="args">Resized control.</param>
protected virtual void OnResize(UIComponent sender)
{
Refresh();
}
/// <summary>
/// Overridden to prevent any control except RadioButton from being
/// added.
/// </summary>
/// <param name="control">Control to add.</param>
public override void Add(UIComponent control)
{
Debug.Assert(false);
}
/// <summary>
/// When the parent control is resized, fill the entire width.
/// </summary>
/// <param name="sender">Resized control.</param>
protected override void OnParentResized(UIComponent sender)
{
base.OnParentResized(sender);
Width = sender.Width;
}
/// <summary>
/// Refresh menu items positions when any of them change size.
/// </summary>
/// <param name="sender">Resized control.</param>
protected void OnMenuItemResize(UIComponent sender)
{
RefreshMenuItems();
}
