[سؤال] WPF Code - نسخة قابلة للطباعة

PHP كود :

public partial class MainWindow : Window
    {
        bool isMouseCaptured = false;
        double mouseVerticalPosition = 0;
        double mouseHorizontalPosition = 0;

        public MainWindow()
        {
            InitializeComponent();
            InitializeControlEvents();
            InitializeControls();
        }

        void InitializeControls()
        {
        }

        void InitializeControlEvents()
        {
            this.SizeChanged += new SizeChangedEventHandler(MainWindow_SizeChanged);

            this.DragBar.MouseDown += new MouseButtonEventHandler(DragBar_MouseDown);
            this.DragBar.MouseMove += new MouseEventHandler(DragBar_MouseMove);
            this.DragBar.MouseUp += new MouseButtonEventHandler(DragBar_MouseUp);
        }

        void MainWindow_SizeChanged(object sender, SizeChangedEventArgs e)
        {
            DragBar.Width = SystemParameters.FullPrimaryScreenWidth;

            MainContent.Width = SystemParameters.FullPrimaryScreenWidth;
            MainContent.Height = this.Height;
        }

        void DragBar_MouseUp(object sender, MouseButtonEventArgs e)
        {
            ScaleTransformAnimation(MainContent, 0.3, 1, 0.5, 0, 150);
            ScaleTransformAnimation(DragBar, 0.3, 1, 0.5, 0, 150);

            isMouseCaptured = false;
            DragBar.ReleaseMouseCapture();
            mouseVerticalPosition = -1;
            mouseHorizontalPosition = -1;

            Canvas.SetTop(DragBar, 0);
            Canvas.SetLeft(DragBar, 0);
            Canvas.SetTop(MainContent, 0);
            Canvas.SetLeft(MainContent, 0);
        }

        void DragBar_MouseMove(object sender, MouseEventArgs e)
        {
            if (isMouseCaptured)
            {
                // Calculate the current position of the object.
                double deltaV = e.GetPosition(null).Y - mouseVerticalPosition;
                double deltaH = e.GetPosition(null).X - mouseHorizontalPosition;
                double newTop = deltaV + (double)DragBar.GetValue(Canvas.TopProperty);
                double newLeft = deltaH + (double)DragBar.GetValue(Canvas.LeftProperty);

                // Set new position of object.
                DragBar.SetValue(Canvas.TopProperty, newTop);
                DragBar.SetValue(Canvas.LeftProperty, newLeft);

                MainContent.SetValue(Canvas.TopProperty, newTop);
                MainContent.SetValue(Canvas.LeftProperty, newLeft);

                int distance = Distance2D(0, Convert.ToInt32(MainContent.Height), 0, Convert.ToInt32(mouseVerticalPosition));

                if (distance < 30)
                {
                    this.Close();
                }

                // Update position global variables.
                mouseVerticalPosition = e.GetPosition(null).Y;
                mouseHorizontalPosition = e.GetPosition(null).X;
            }
        }

        void DragBar_MouseDown(object sender, MouseButtonEventArgs e)
        {
            mouseVerticalPosition = e.GetPosition(null).Y;
            mouseHorizontalPosition = e.GetPosition(null).X;
            isMouseCaptured = true;
            DragBar.CaptureMouse();

            ScaleTransformAnimation(MainContent, 1, 0.3, 0.5, 0, 150);
            ScaleTransformAnimation(DragBar, 1, 0.3, 0.5, 0, 150);
        }

        void ScaleTransformAnimation(UIElement element, double fromValue, double toValue, double centerX, double centerY, int duration_ms)
        {
            ScaleTransform scale_trans = new ScaleTransform()
            {
                ScaleX = toValue,
                ScaleY = toValue
            };
            DoubleAnimation danim = new DoubleAnimation()
            {
                From = fromValue,
                Duration = TimeSpan.FromMilliseconds(duration_ms)
            };

            element.RenderTransformOrigin = new Point(centerX, centerY);
            element.RenderTransform = scale_trans;

            scale_trans.BeginAnimation(ScaleTransform.ScaleXProperty, danim);
            scale_trans.BeginAnimation(ScaleTransform.ScaleYProperty, danim);
        }

        public int Distance2D(int x1, int y1, int x2, int y2)
        {
            //Our end result
            int result = 0;
            //Take x2-x1, then square it
            double part1 = Math.Pow((x2 - x1), 2);
            //Take y2-y1, then sqaure it
            double part2 = Math.Pow((y2 - y1), 2);
            //Add both of the parts together
            double underRadical = part1 + part2;
            //Get the square root of the parts
            result = (int)Math.Sqrt(underRadical);
            //Return our result
            return result;
        }
    } 