C # animation display effect of the control,

C # animation display effect of the control,

1. Reason:

There is a prompt for the task to be completed in the project, which needs to be displayed with an animated effect, such:

This is written by Delphi for the old project, and is implemented by c #. This effect is designed. This is not difficult, but it is only a small skill, but for ease of expansion, write a static class implementation.

 

2. Animation class

The Code is as follows:

    public static class Animation    {        private static readonly int MoveStep = 25;        private static Timer tmrAnim = null;        private static Control control = null;        private static AnchorStyles direction = AnchorStyles.None;        private static Size destSize;        private static void InitTimer()        {            if (tmrAnim == null)            {                tmrAnim = new Timer();                tmrAnim.Interval = 25;                tmrAnim.Tick += new System.EventHandler(tmrAnim_Tick);            }        }        private static void tmrAnim_Tick(object sender, System.EventArgs e)        {            int newValue = 0;            int offSet = 0;            switch (direction)            {                case AnchorStyles.Left:                case AnchorStyles.Right:                    newValue = control.Width + MoveStep;                    if (newValue > destSize.Width)                    {                        tmrAnim.Stop();                        newValue = destSize.Width;                    }                    offSet = newValue - control.Width;                    control.Width += offSet;                    if (direction == AnchorStyles.Left)                        control.Left -= offSet;                    break;                case AnchorStyles.Top:                case AnchorStyles.Bottom:                    newValue = control.Height + MoveStep;                    if (newValue > destSize.Height)                    {                        tmrAnim.Stop();                        newValue = destSize.Height;                    }                    offSet = newValue - control.Height;                    control.Height += offSet;                    if (direction == AnchorStyles.Top)                        control.Top -= offSet;                    break;            }        }        public static void ShowControl(Control control, bool visible, AnchorStyles direction = AnchorStyles.None)        {            if (direction == AnchorStyles.None)            {                control.Visible = visible;                return;            }            if (!visible)            {                if (tmrAnim != null)                    tmrAnim.Stop();                control.Hide();            }            else            {                InitTimer();                if (Animation.control != control && destSize.IsEmpty)                {                    destSize = new Size(control.Width, control.Height);                }                Animation.control = control;                Animation.direction = direction;                switch (direction)                {                    case AnchorStyles.Left:                    case AnchorStyles.Right:                        if (direction == AnchorStyles.Left)                            control.Left += control.Width;                        control.Width = 0;                        break;                    case AnchorStyles.Top:                    case AnchorStyles.Bottom:                        if (direction == AnchorStyles.Top)                            control.Top += control.Height;                        control.Height = 0;                        break;                }                control.Show();                tmrAnim.Start();            }        }    }

It is very short, and its implementation controls have effects from four sides, such:

 

3. Final Implementation: