SpaceEngineersBlueprintEditorInWinUI

using SpaceEngineersBlueprintEditor.Installer.Profiles;
using SpaceEngineersBlueprintEditor.Installer.Views.Windows;
using System.Windows;
using System.Windows.Interop;
using XFEExtension.NetCore.InputSimulator;

namespace SpaceEngineersBlueprintEditor.Installer.ViewModel.Windows;

public partial class MainWindowViewModel(MainWindow viewPage) : ViewModelBase
{
    private bool isDragMouseDown = false;
    private bool isDoubleClickMouseDown = false;
    private int mouseOriginalX = 0;
    private int mouseOriginalY = 0;
    public MainWindow ViewPage { get; set; } = viewPage;

    /// <summary>
    /// 最小化窗体
    /// </summary>
    public void Minimize() => ViewPage!.WindowState = WindowState.Minimized;
    /// <summary>
    /// 关闭窗体
    /// </summary>
    public static void CloseWindow()
    {
        MainWindow.Current?.Close();
    }
    /// <summary>
    /// 获取窗体DPI缩放
    /// </summary>
    public void GetDPIScale() => SystemProfile.CurrentWindowDPIScale = InputSimulator.GetScalingFactorForWindow(new WindowInteropHelper(ViewPage).Handle);
    /// <summary>
    /// 初始化鼠标位置
    /// </summary>
    public void InitMousePosition()
    {
        var mousePosition = InputSimulator.GetMousePosition();
        mouseOriginalX = mousePosition.X;
        mouseOriginalY = mousePosition.Y;
    }
    /// <summary>
    /// 初始化调整窗体参数
    /// </summary>
    public void InitializeToResize()
    {
        isDragMouseDown = true;
        InitMousePosition();
        _ = Task.Run(Resize);
    }
    /// <summary>
    /// 调整窗体大小
    /// </summary>
    public void Resize()
    {
        while (isDragMouseDown && InputSimulator.GetMouseDown(MouseButton.Left))
        {
            var nowMousePoint = InputSimulator.GetMousePosition();
            ViewPage.Dispatcher.Invoke(() =>
            {
                double newWidth = ViewPage.Width + (nowMousePoint.X - mouseOriginalX) / SystemProfile.CurrentWindowDPIScale;
                double newHeight = ViewPage.Height + (nowMousePoint.Y - mouseOriginalY) / SystemProfile.CurrentWindowDPIScale;
                if (newWidth > ViewPage.MinWidth)
                    ViewPage.Width = newWidth;
                else
                    ViewPage.Width = ViewPage.MinWidth;
                if (newHeight > ViewPage.MinHeight)
                    ViewPage.Height = newHeight;
                else
                    ViewPage.Height = ViewPage.MinHeight;
            });
            mouseOriginalX = nowMousePoint.X;
            mouseOriginalY = nowMousePoint.Y;
        }
        ViewPage.Dispatcher.Invoke(() =>
        {
            SystemProfile.MainWindowWidth = ViewPage.Width;
            SystemProfile.MainWindowHeight = ViewPage.Height;
        });
    }
    /// <summary>
    /// 判断是否双击
    /// </summary>
    /// <param name="delay">间隔</param>
    /// <returns></returns>
    public bool CheckDoubleClick(int delay)
    {
        if (isDoubleClickMouseDown)
        {
            var nowMousePosition = InputSimulator.GetMousePosition();
            if (mouseOriginalX == nowMousePosition.X && mouseOriginalY == nowMousePosition.Y)
                return true;
            else
                return false;
        }
        else
        {
            isDoubleClickMouseDown = true;
            InitMousePosition();
            _ = Task.Run(async () =>
            {
                await Task.Delay(delay);
                isDoubleClickMouseDown = false;
            });
            return false;
        }
    }
}