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using Avalonia;
using Avalonia.Controls;
using Avalonia.Input;
using Ryujinx.Input;
using System;
using System.Numerics;
using MouseButton = Ryujinx.Input.MouseButton;
using Size = System.Drawing.Size;
namespace Ryujinx.Ava.Input
{
internal class AvaloniaMouseDriver : IGamepadDriver
{
private Control _widget;
private bool _isDisposed;
private Size _size;
private readonly TopLevel _window;
public bool[] PressedButtons { get; }
public Vector2 CurrentPosition { get; private set; }
public Vector2 Scroll { get; private set; }
public string DriverName => "AvaloniaMouseDriver";
public ReadOnlySpan<string> GamepadsIds => new[] { "0" };
public AvaloniaMouseDriver(TopLevel window, Control parent)
{
_widget = parent;
_window = window;
_widget.PointerMoved += Parent_PointerMovedEvent;
_widget.PointerPressed += Parent_PointerPressedEvent;
_widget.PointerReleased += Parent_PointerReleasedEvent;
_widget.PointerWheelChanged += Parent_PointerWheelChanged;
_window.PointerMoved += Parent_PointerMovedEvent;
_window.PointerPressed += Parent_PointerPressedEvent;
_window.PointerReleased += Parent_PointerReleasedEvent;
_window.PointerWheelChanged += Parent_PointerWheelChanged;
PressedButtons = new bool[(int)MouseButton.Count];
_size = new Size((int)parent.Bounds.Width, (int)parent.Bounds.Height);
parent.GetObservable(Visual.BoundsProperty).Subscribe(Resized);
}
public event Action<string> OnGamepadConnected
{
add { }
remove { }
}
public event Action<string> OnGamepadDisconnected
{
add { }
remove { }
}
private void Resized(Rect rect)
{
_size = new Size((int)rect.Width, (int)rect.Height);
}
private void Parent_PointerWheelChanged(object o, PointerWheelEventArgs args)
{
Scroll = new Vector2((float)args.Delta.X, (float)args.Delta.Y);
}
private void Parent_PointerReleasedEvent(object o, PointerReleasedEventArgs args)
{
uint button = (uint)args.InitialPressMouseButton - 1;
if ((uint)PressedButtons.Length > button)
{
PressedButtons[button] = false;
}
}
private void Parent_PointerPressedEvent(object o, PointerPressedEventArgs args)
{
uint button = (uint)args.GetCurrentPoint(_widget).Properties.PointerUpdateKind;
if ((uint)PressedButtons.Length > button)
{
PressedButtons[button] = true;
}
}
private void Parent_PointerMovedEvent(object o, PointerEventArgs args)
{
Point position = args.GetPosition(_widget);
CurrentPosition = new Vector2((float)position.X, (float)position.Y);
}
public void SetMousePressed(MouseButton button)
{
if ((uint)PressedButtons.Length > (uint)button)
{
PressedButtons[(uint)button] = true;
}
}
public void SetMouseReleased(MouseButton button)
{
if ((uint)PressedButtons.Length > (uint)button)
{
PressedButtons[(uint)button] = false;
}
}
public void SetPosition(double x, double y)
{
CurrentPosition = new Vector2((float)x, (float)y);
}
public bool IsButtonPressed(MouseButton button)
{
if ((uint)PressedButtons.Length > (uint)button)
{
return PressedButtons[(uint)button];
}
return false;
}
public Size GetClientSize()
{
return _size;
}
public IGamepad GetGamepad(string id)
{
return new AvaloniaMouse(this);
}
public void Dispose()
{
if (_isDisposed)
{
return;
}
_isDisposed = true;
_widget.PointerMoved -= Parent_PointerMovedEvent;
_widget.PointerPressed -= Parent_PointerPressedEvent;
_widget.PointerReleased -= Parent_PointerReleasedEvent;
_widget.PointerWheelChanged -= Parent_PointerWheelChanged;
_window.PointerMoved -= Parent_PointerMovedEvent;
_window.PointerPressed -= Parent_PointerPressedEvent;
_window.PointerReleased -= Parent_PointerReleasedEvent;
_window.PointerWheelChanged -= Parent_PointerWheelChanged;
_widget = null;
}
}
}
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