/// <summary>
/// Handles the timing for a flashing cursor.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
public override void Update(GameTime gameTime)
{
// Update flashing cursor
if (GUIManager.GetFocus() != this)
{
if (this.label.IsCursorShown)
{
this.label.IsCursorShown = false;
this.seconds = 0;
}
}
else
{
this.seconds += gameTime.ElapsedGameTime.TotalSeconds;
if (this.seconds > 0.5)
{
this.label.IsCursorShown = false;
}
else
{
this.label.IsCursorShown = true;
}
if (this.seconds > 1)
{
this.seconds = 0;
}
}
base.Update(gameTime);
}
/// <summary>
/// Close listbox when it loses focus.
/// </summary>
protected void OnButtonLoseFocus()
{
// Only close if not listbox
if (GUIManager.GetFocus() != this.listBox)
{
CloseListBox();
}
}
/// <summary>
/// Allows tabbing between child controls.
/// </summary>
/// <param name="args">Key event arguments.</param>
protected override void KeyUpIntercept(KeyEventArgs args)
{
base.KeyUpIntercept(args);
if (args.Key == Keys.Tab && IsChild(GUIManager.GetFocus()))
{
List <UIComponent> controls = this.viewPort.Controls;
bool backwards = args.Shift;
int index = 0;
foreach (UIComponent control in controls)
{
if (control.IsChild(GUIManager.GetFocus()))
{
UIComponent nextControl;
int nextIndex = index;
while (true)
{
// Loop round the list if necessary
if (backwards)
{
if (nextIndex > 0)
{
nextIndex--;
}
else
{
nextIndex = controls.Count - 1;
}
}
else
{
if ((nextIndex + 1) < controls.Count)
{
nextIndex++;
}
else
{
nextIndex = 0;
}
}
nextControl = controls[nextIndex];
// Set focus to next control
if (nextControl.CanHaveFocus && nextControl != this.backgroundMovableArea)
{
GUIManager.SetFocus(nextControl);
break;
}
else if (nextIndex == index) // Exit loop if coming back to the same control
{
break;
}
}
break;
}
index++;
}
}
}
