using System.Drawing; using System.Numerics; namespace Ryujinx.Input { /// <summary> /// Represent an emulated mouse. /// </summary> public interface IMouse : IGamepad { private const int SwitchPanelWidth = 1280; private const int SwitchPanelHeight = 720; /// <summary> /// Check if a given button is pressed on the mouse. /// </summary> /// <param name="button">The button</param> /// <returns>True if the given button is pressed on the mouse</returns> bool IsButtonPressed(MouseButton button); /// <summary> /// Get the position of the mouse in the client. /// </summary> Vector2 GetPosition(); /// <summary> /// Get the mouse scroll delta. /// </summary> Vector2 GetScroll(); /// <summary> /// Get the client size. /// </summary> Size ClientSize { get; } /// <summary> /// Get the button states of the mouse. /// </summary> bool[] Buttons { get; } /// <summary> /// Get a snaphost of the state of a mouse. /// </summary> /// <param name="mouse">The mouse to do a snapshot of</param> /// <returns>A snaphost of the state of the mouse.</returns> public static MouseStateSnapshot GetMouseStateSnapshot(IMouse mouse) { bool[] buttons = new bool[(int)MouseButton.Count]; mouse.Buttons.CopyTo(buttons, 0); return new MouseStateSnapshot(buttons, mouse.GetPosition(), mouse.GetScroll()); } /// <summary> /// Get the position of a mouse on screen relative to the app's view /// </summary> /// <param name="mousePosition">The position of the mouse in the client</param> /// <param name="clientSize">The size of the client</param> /// <param name="aspectRatio">The aspect ratio of the view</param> /// <returns>A snaphost of the state of the mouse.</returns> public static Vector2 GetScreenPosition(Vector2 mousePosition, Size clientSize, float aspectRatio) { float mouseX = mousePosition.X; float mouseY = mousePosition.Y; float aspectWidth = SwitchPanelHeight * aspectRatio; int screenWidth = clientSize.Width; int screenHeight = clientSize.Height; if (clientSize.Width > clientSize.Height * aspectWidth / SwitchPanelHeight) { screenWidth = (int)(clientSize.Height * aspectWidth) / SwitchPanelHeight; } else { screenHeight = (clientSize.Width * SwitchPanelHeight) / (int)aspectWidth; } int startX = (clientSize.Width - screenWidth) >> 1; int startY = (clientSize.Height - screenHeight) >> 1; int endX = startX + screenWidth; int endY = startY + screenHeight; if (mouseX >= startX && mouseY >= startY && mouseX < endX && mouseY < endY) { int screenMouseX = (int)mouseX - startX; int screenMouseY = (int)mouseY - startY; mouseX = (screenMouseX * (int)aspectWidth) / screenWidth; mouseY = (screenMouseY * SwitchPanelHeight) / screenHeight; return new Vector2(mouseX, mouseY); } return new Vector2(); } } }