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Stack.cs
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Stack.cs
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//
// Stack.cs
//
// Author: endofunk
//
// Copyright (c) 2019
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
using System.Linq;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using Microsoft.Xna.Framework.Input;
namespace Endofunk.Monogame.UI {
public class Stack : IElement {
public readonly IElement[] Elements;
public readonly Layout Layout;
public Vector2 Bounding { get; }
private bool IsMouseEnter;
private Rectangle Area = Rectangle.Empty;
public Stack(Layout layout, params IElement[] elements) {
(Layout, Elements, Bounding) = (layout, elements, layout.Bounding(elements));
}
public void Draw(SpriteBatch spriteBatch, Vector2 position) {
if (Area.IsEmpty || Area.Location != position.ToPoint()) Area = new Rectangle(position.ToPoint(), Bounding.ToPoint());
var acc = 0f;
Elements.ToList().ForEach(e => {
e.Draw(spriteBatch, Layout.Offset(position, acc));
acc += Layout.Increment(e.Bounding);
});
}
public event MouseEventHandler MouseEnter;
public event MouseEventHandler MouseLeave;
public event MouseEventHandler MouseMove;
public event UpdateHandler UpdateEvent;
protected virtual void OnMouseEnter(GameTime g, MouseState m) => MouseEnter?.Invoke(this, g, m);
protected virtual void OnMouseLeave(GameTime g, MouseState m) => MouseLeave?.Invoke(this, g, m);
protected virtual void OnMouseMove(GameTime g, MouseState m) => MouseMove?.Invoke(this, g, m);
protected virtual void OnUpdateEvent(GameTime gameTime) => UpdateEvent?.Invoke(this, gameTime);
public void Update(GameTime gameTime) {
MouseState mouse = Mouse.GetState();
IsMouseEnter = mouse.HasMouseEntered(gameTime, IsMouseEnter, Area, OnMouseEnter, OnMouseLeave);
Elements.ToList().ForEach(e => e.Update(gameTime));
OnUpdateEvent(gameTime);
if (IsMouseEnter) OnMouseMove(gameTime, mouse);
}
}
public static partial class Prelude {
#region Syntactic Sugar
public static Stack VStack(params IElement[] elements) => new Stack(Layout.Vertical, elements);
public static Stack HStack(params IElement[] elements) => new Stack(Layout.Horizontal, elements);
#endregion
}
}