MouseEventArgs.cs

using System.Drawing;
using Gondwana.Input.Keyboard;
 
namespace Gondwana.Input.Mouse;

public sealed class MouseEventArgs : EventArgs
{
    public MouseEventConfiguration MouseEventConfiguration { get; }

    public KeyboardModifierState CurrentKeyboardModifiers { get; }

    public IReadOnlyDictionary<MouseButton, MouseButtonState> ButtonStates { get; }

    public Point PreviousPosition { get; }

    public Point CurrentPosition { get; }

    public int ScrollDelta { get; }

    public bool IsShift => CurrentKeyboardModifiers.HasFlag(KeyboardModifierState.Shift);

    public bool IsCtrl => CurrentKeyboardModifiers.HasFlag(KeyboardModifierState.Ctrl);

    public bool IsAlt => CurrentKeyboardModifiers.HasFlag(KeyboardModifierState.Alt);

    public long Tick { get; }

    public MouseEventArgs(MouseEventConfiguration mouseEventConfiguration,
                          KeyboardModifierState currentKeyboardModifiers,
                          IReadOnlyDictionary<MouseButton, MouseButtonState> buttonStates,
                          Point previousPosition,
                          Point currentPosition,
                          int scrollDelta,
                          long tick)
    {
        MouseEventConfiguration = mouseEventConfiguration;
        CurrentKeyboardModifiers = currentKeyboardModifiers;
        ButtonStates = buttonStates;
        PreviousPosition = previousPosition;
        CurrentPosition = currentPosition;
        ScrollDelta = scrollDelta;
        Tick = tick;
    }

    public bool IsButtonDown(MouseButton button)
        => ButtonStates.TryGetValue(button, out var state) && state.IsDown;

    public bool IsButtonJustPressed(MouseButton button)
        => ButtonStates.TryGetValue(button, out var state) && state.JustPressed;

    public bool IsButtonJustReleased(MouseButton button)
        => ButtonStates.TryGetValue(button, out var state) && state.JustReleased;

    public bool LeftButtonDown => IsButtonDown(MouseButton.Left);

    public bool LeftButtonJustPressed => IsButtonJustPressed(MouseButton.Left);

    public bool LeftButtonJustReleased => IsButtonJustReleased(MouseButton.Left);

    public bool RightButtonDown => IsButtonDown(MouseButton.Right);

    public bool RightButtonJustPressed => IsButtonJustPressed(MouseButton.Right);

    public bool RightButtonJustReleased => IsButtonJustReleased(MouseButton.Right);

    public bool MiddleButtonDown => IsButtonDown(MouseButton.Middle);

    public bool MiddleButtonJustPressed => IsButtonJustPressed(MouseButton.Middle);

    public bool MiddleButtonJustReleased => IsButtonJustReleased(MouseButton.Middle);
}