// Constructor.
public CaptionButtonWidget(Widget parent, int x, int y,
int width, int height, MdiClientWidget mdi,
CaptionWidget.CaptionFlags flags)
: base(parent, x, y, width, height)
{
this.mdi = mdi;
this.flags = flags;
this.pressed = false;
this.Layer = 10;
}
/// <summary>
/// <para>Constructs a new <see cref="T:Xsharp.TopLevelWindow"/>
/// instance that appears as a child of this MDI client area.</para>
/// </summary>
///
/// <param name="name">
/// <para>The initial name to display in the title bar.</para>
/// </param>
///
/// <param name="width">
/// <para>The width of the new window.</para>
/// </param>
///
/// <param name="height">
/// <para>The height of the new window.</para>
/// </param>
///
/// <param name="type">
/// <para>The type of window to create. This must inherit from
/// the <see cref="T:Xsharp.TopLevelWindow"/> class. The value
/// <see langword="null"/> indicates to use
/// <see cref="T:Xsharp.TopLevelWindow"/> as the type.</para>
/// </param>
///
/// <exception cref="T:Xsharp.XException">
/// <para>Raised if <paramref name="width"/> or <paramref name="height"/>
/// is out of range, or <paramref name="type"/> does not inherit
/// from <see cref="T:Xsharp.TopLevelWindow"/>.</para>
/// </exception>
public TopLevelWindow CreateChild(String name, int width, int height,
Type type)
{
CaptionWidget widget;
if(type == null)
{
type = typeof(TopLevelWindow);
}
else if(!type.IsSubclassOf(typeof(TopLevelWindow)))
{
throw new XException(S._("X_TopLevelType"));
}
if(this.width != 1 && this.height != 1)
{
if(cascadeOffset >= (this.width - 64) ||
cascadeOffset >= (this.height - 64))
{
cascadeOffset = 0;
}
}
widget = new CaptionWidget
(this, name, cascadeOffset, cascadeOffset,
width, height, type);
cascadeOffset += 22;
if(maximized)
{
// The MDI client is in the maximized state,
// so make sure that this window starts maximized.
widget.MaximizeChild(true, HasControls());
}
return widget.Child;
}
// Select a new caption widget to become the active one.
internal void SelectActive()
{
Widget widget;
if(HasFocus())
{
widget = TopChild;
while(widget != null)
{
if(widget is CaptionWidget && widget.IsMapped)
{
break;
}
widget = widget.NextBelow;
}
}
else
{
widget = null;
}
if(widget != (Widget)activeChild)
{
if(activeChild != null)
{
activeChild.MakeInactive();
OnDeactivateChild(activeChild.Child);
}
activeChild = (widget as CaptionWidget);
if(activeChild != null)
{
activeChild.MakeActive();
OnActivateChild(activeChild.Child);
}
}
PositionControls();
}
// Pass a caption operation up to the caption parent, if there is one.
// Returns true to perform the normal window manager processing.
private bool Caption(CaptionWidget.Operation operation)
{
Widget parent = Parent;
if(parent is CaptionWidget)
{
return ((CaptionWidget)parent).CaptionOperation(operation);
}
else
{
return true;
}
}