public Container(uint w, uint h)
{
SurfaceWidth = w;
SurfaceHeight = h;
Width = w;
Height = h;
_children = new LinkedList<Widget>();
_focus = null;
}
// INTERNAL ONLY
public void BringToFront(Widget widget)
{
var node = _children.Find(widget);
if (node == null)
return;
_children.Remove(node);
_children.AddFirst(widget);
if (Parent != null)
Parent.BringToFront(this);
}
// INTERNAL ONLY
public void Focus(Widget widget)
{
if (!_children.Contains(widget))
return;
BringToFront(widget);
if (_focus != null)
_focus.Focussed = false;
_focus = widget;
if (Parent != null)
Parent.Focus(this);
widget.Focussed = true;
}
public void Add(Widget widget)
{
widget.Initialize(this);
_children.AddFirst(widget);
}
private static bool ContainsPoint(Widget widget, int x, int y)
{
return x >= widget.Left && y >= widget.Top && x < (widget.Left + widget.Width) && y < (widget.Top + widget.Height);
}
public void Remove(Widget widget)
{
_children.Remove(widget);
if (_focus == widget)
_focus = null;
}
public override bool MousePressed(int x, int y, Mouse.Button button, bool pressed)
{
if (pressed)
{
if (_focus != null)
{
_focus.Focussed = false;
_focus = null;
}
var node = _children.First;
while (node != null)
{
var widget = node.Value;
var next = node.Next;
if (widget.Visible && ContainsPoint(widget, x, y))
{
widget.Focus();
return widget.MousePressed(x - widget.Left, y - widget.Top, button, true);
}
node = next;
}
}
else
{
var node = _children.First;
while (node != null)
{
var widget = node.Value;
var next = node.Next;
widget.MousePressed(x - widget.Left, y - widget.Top, button, false);
node = next;
}
}
return false;
}