public void MoveToTop(Widget c)
{
if (!children.Remove(c))
{
throw new Exception("No such child exists");
}
children.Add(c);
}
public void Remove(Widget c)
{
if (!children.Remove(c))
{
throw new Exception("No such child exists");
}
c.parent = null;
c.guiManager = null;
}
private void DispatchMouseInput(MouseState mouseState)
{
Widget newWidgetWithMouse = GetWidgetAt(mouseState.X, mouseState.Y);
if (newWidgetWithMouse != WidgetWithMouse)
{
if (WidgetWithMouse != null)
{
WidgetWithMouse.OnMouseLeft();
}
WidgetWithMouse = newWidgetWithMouse;
if (newWidgetWithMouse != null)
{
newWidgetWithMouse.OnMouseEntered();
}
}
if (mouseFocus == null)
{
mouseFocus = WidgetWithMouse;
}
if (mouseFocus == null)
{
return;
}
Point absPos = mouseFocus.AbsolutePosition;
int x = mouseState.X - absPos.X;
int y = mouseState.Y - absPos.Y;
if (mouseState.X != lastMouseState.X || mouseState.Y != lastMouseState.Y)
{
mouseFocus.OnMouseMoved(x, y);
}
if (mouseState.LeftButton == ButtonState.Pressed && lastMouseState.LeftButton == ButtonState.Released)
{
mouseFocus.OnMousePressed(x, y, MouseButton.Left);
}
if (mouseState.RightButton == ButtonState.Pressed && lastMouseState.RightButton == ButtonState.Released)
{
mouseFocus.OnMousePressed(x, y, MouseButton.Right);
}
if (mouseState.MiddleButton == ButtonState.Pressed && lastMouseState.MiddleButton == ButtonState.Released)
{
mouseFocus.OnMousePressed(x, y, MouseButton.Middle);
}
if (mouseState.LeftButton == ButtonState.Released && lastMouseState.LeftButton == ButtonState.Pressed)
{
mouseFocus.OnMouseReleased(x, y, MouseButton.Left);
}
if (mouseState.RightButton == ButtonState.Released && lastMouseState.RightButton == ButtonState.Pressed)
{
mouseFocus.OnMouseReleased(x, y, MouseButton.Right);
}
if (mouseState.MiddleButton == ButtonState.Released && lastMouseState.MiddleButton == ButtonState.Pressed)
{
mouseFocus.OnMouseReleased(x, y, MouseButton.Middle);
}
if (mouseState.LeftButton == ButtonState.Released && mouseState.RightButton == ButtonState.Released && mouseState.MiddleButton == ButtonState.Released)
{
mouseFocus = null;
}
}
public void Add(Widget c)
{
if (c.parent != null)
{
c.parent.Remove(c);
}
children.Add(c);
c.parent = this;
c.guiManager = guiManager;
}
private void UpdateWidgets(GameTime gameTime, Widget w)
{
w.Update(gameTime);
foreach (Widget c in w.Children)
{
UpdateWidgets(gameTime, c);
}
}
private Widget GetWidgetAt(Point p, Widget w)
{
if (!w.IsVisible)
{
return null;
}
p = new Point(p.X - w.Dimension.X, p.Y - w.Dimension.Y);
Widget found = w.IsOpaque ? w : null;
foreach (Widget c in w.Children)
{
if (c.IsVisible && c.Dimension.Contains(p))
{
Widget g = GetWidgetAt(p, c);
if (g != null)
{
found = g;
}
}
}
return found;
}
private void DrawWidgets(Graphics g, GameTime gameTime, Widget w)
{
if (!w.IsVisible)
{
return;
}
g.PushClipRectangle(w.Dimension);
if (w.IsOpaque)
{
g.Begin(SpriteBlendMode.AlphaBlend, SpriteSortMode.Deferred, SaveStateMode.SaveState);
w.Draw(g, gameTime);
g.End();
}
foreach (Widget c in w.Children)
{
DrawWidgets(g, gameTime, c);
}
g.PopClipRectangle();
}
void Button_MouseReleased(Widget sender, int x, int y, MouseButton button)
{
if (button != MouseButton.Left)
{
return;
}
if (IsPressed && Clicked != null)
{
Clicked(this, x, y, button);
}
isMouseDown = false;
}
void Button_MousePressed(Widget sender, int x, int y, MouseButton button)
{
isMouseDown = (button == MouseButton.Left);
}