private static GuiControl FindControlAtPoint(GuiControl control, Point point)
{
var layoutControl = control as GuiLayoutControl;
if (layoutControl != null)
{
var children = layoutControl.Children;
for(var i = children.Count - 1; i >= 0; i--)
{
var child = children[i];
if (!child.Contains(point))
continue;
var c = FindControlAtPoint(child, point);
if (c != null)
return c;
}
}
if (control.Contains(point))
return control;
return null;
}
private void OnMouseMoved(object sender, MouseEventArgs args)
{
if (_focusedControl != null)
_focusedControl.OnMouseLeave(this, args);
_focusedControl = FindControlAtPoint(Layout, args.Position);
if (_focusedControl != null)
_focusedControl.OnMouseEnter(this, args);
Layout.OnMouseMoved(this, args);
}
protected int GetHorizontalAlignment(GuiControl control, Rectangle rectangle)
{
switch (control.HorizontalAlignment)
{
case GuiHorizontalAlignment.Stretch:
case GuiHorizontalAlignment.Left:
return rectangle.Left;
case GuiHorizontalAlignment.Right:
return rectangle.Right - control.Width;
case GuiHorizontalAlignment.Center:
return rectangle.Left + rectangle.Width / 2 - control.Width / 2;
}
throw new NotSupportedException(string.Format("{0} is not supported", control.HorizontalAlignment));
}
public GuiManager(ViewportAdapter viewportAdapter, GraphicsDevice graphicsDevice)
{
_viewportAdapter = viewportAdapter;
_inputManager = new InputListenerManager(viewportAdapter);
_spriteBatch = new SpriteBatch(graphicsDevice);
Controls = new List<GuiControl>();
var mouseListener = _inputManager.AddListener<MouseListener>();
mouseListener.MouseMoved += (sender, args) =>
{
if (_focusedControl != null)
_focusedControl.OnMouseLeave(this, args);
_focusedControl = FindFocusedControl(args.Position);
if (_focusedControl != null)
_focusedControl.OnMouseEnter(this, args);
DelegateMouseEvent(args, c => c.OnMouseMoved(this, args));
};
mouseListener.MouseDown += (sender, args) => DelegateMouseEvent(args, c => c.OnMouseDown(this, args));
mouseListener.MouseUp += (sender, args) => DelegateMouseEvent(args, c => c.OnMouseUp(this, args));
}
protected int GetVerticalAlignment(GuiControl control, Rectangle rectangle)
{
switch (control.VerticalAlignment)
{
case GuiVerticalAlignment.Stretch:
case GuiVerticalAlignment.Top:
return rectangle.Top;
case GuiVerticalAlignment.Bottom:
return rectangle.Bottom - control.Height;
case GuiVerticalAlignment.Center:
return rectangle.Top + rectangle.Height / 2 - control.Height / 2;
}
throw new NotSupportedException(string.Format("{0} is not supported", control.VerticalAlignment));
}
