mirror of
https://github.com/OpenDiablo2/OpenDiablo2
synced 2024-09-10 05:24:35 -04:00
206 lines
5.7 KiB
C#
206 lines
5.7 KiB
C#
using OpenDiablo2.Common;
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using OpenDiablo2.Common.Interfaces;
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using OpenDiablo2.Common.Models;
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using System;
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using System.Collections.Generic;
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using System.Drawing;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace OpenDiablo2.Core.UI
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{
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public sealed class Button : IDisposable
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{
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private readonly IMouseInfoProvider mouseInfoProvider;
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private readonly IRenderWindow renderWindow;
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private readonly ButtonLayout buttonLayout;
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public delegate void OnActivateDelegate();
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public OnActivateDelegate OnActivate { get; set; }
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public delegate void OnToggleDelegate(bool isToggled);
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public OnToggleDelegate OnToggle { get; set; }
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private Point location = new Point();
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public Point Location
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{
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get => location;
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set
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{
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location = value;
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sprite.Location = value;
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}
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}
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private int buttonWidth, buttonHeight;
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private ISprite sprite;
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private IFont font;
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private ILabel label;
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private bool pressed = false;
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private bool active = false; // When true, button is actively being focus pressed
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private bool activeLock = false; // When true, we have locked the mouse from everything else
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private bool toggled = false;
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private Point labelOffset = new Point();
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private bool enabled = true;
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public bool Enabled
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{
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get => enabled;
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set
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{
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if (value == enabled)
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return;
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enabled = value;
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sprite.Darken = !enabled;
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}
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}
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private string text;
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public string Text
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{
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get => text;
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set
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{
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text = value;
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UpdateText();
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}
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}
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public Button(
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ButtonLayout buttonLayout,
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IRenderWindow renderWindow,
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IMouseInfoProvider mouseInfoProvider
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)
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{
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this.buttonLayout = buttonLayout;
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this.renderWindow = renderWindow;
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this.mouseInfoProvider = mouseInfoProvider;
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font = renderWindow.LoadFont(ResourcePaths.FontExocet10, Palettes.Units);
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label = renderWindow.CreateLabel(font);
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sprite = renderWindow.LoadSprite(buttonLayout.ResourceName, buttonLayout.PaletteName);
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// TODO: Less stupid way of doing this would be nice
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buttonWidth = 0;
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buttonHeight = 0;
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for (int i = 0; i < buttonLayout.XSegments; i++)
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{
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sprite.Frame = i;
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buttonWidth += sprite.LocalFrameSize.Width;
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buttonHeight = Math.Max(buttonHeight, sprite.LocalFrameSize.Height);
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}
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}
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public bool Toggle()
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{
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toggled = !toggled;
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OnToggle?.Invoke(toggled);
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return toggled;
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}
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public void Update()
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{
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if (!enabled)
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{
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// Prevent sticky locks
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if (activeLock && mouseInfoProvider.ReserveMouse)
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{
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activeLock = false;
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mouseInfoProvider.ReserveMouse = false;
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}
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active = false;
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return;
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}
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var hovered = (mouseInfoProvider.MouseX >= location.X && mouseInfoProvider.MouseX < (location.X + buttonWidth))
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&& (mouseInfoProvider.MouseY >= location.Y && mouseInfoProvider.MouseY < (location.Y + buttonHeight));
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if (!activeLock && hovered && mouseInfoProvider.LeftMouseDown && !mouseInfoProvider.ReserveMouse)
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{
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// The button is being pressed down
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mouseInfoProvider.ReserveMouse = true;
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active = true;
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}
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else if (active && !mouseInfoProvider.LeftMouseDown)
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{
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mouseInfoProvider.ReserveMouse = false;
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active = false;
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if (hovered)
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{
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OnActivate?.Invoke();
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if (buttonLayout.Toggleable)
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{
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Toggle();
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}
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}
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}
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else if (!active && mouseInfoProvider.LeftMouseDown)
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{
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activeLock = true;
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}
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else if (activeLock && !mouseInfoProvider.LeftMouseDown)
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{
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activeLock = false;
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}
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pressed = (hovered && mouseInfoProvider.LeftMouseDown && active);
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}
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public void Render()
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{
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var frame = 0;
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if(toggled && pressed)
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{
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frame = 3;
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}
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else if(pressed)
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{
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frame = 1;
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}
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else if(toggled)
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{
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frame = 2;
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}
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renderWindow.Draw(sprite, buttonLayout.XSegments, 1, frame);
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var offset = pressed ? -2 : 0;
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label.Location = new Point(location.X + offset + labelOffset.X, location.Y - offset + labelOffset.Y);
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renderWindow.Draw(label);
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}
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private void UpdateText()
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{
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label.Text = text;
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label.TextColor = Color.FromArgb(75, 75, 75);
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var offsetX = (buttonWidth / 2) - (label.TextArea.Width / 2);
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labelOffset = new Point(offsetX, -5);
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}
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public void Dispose()
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{
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sprite.Dispose();
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font.Dispose();
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label.Dispose();
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}
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}
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}
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