CustomMessageBox.cs

using System;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text.RegularExpressions;
using System.Windows.Forms;
using TheArtOfDev.HtmlRenderer.WinForms;

namespace lxMsgBox {
    class lxMessageBox : Form {
        private const int CS_DROPSHADOW = 0x00020000;
        private static lxMessageBox _msgBox;
        private Panel _plHeader = new Panel();
        private Panel _plFooter = new Panel();
        private Panel _plIcon = new Panel();
        private PictureBox _picIcon = new PictureBox();
        private FlowLayoutPanel _flpButtons = new FlowLayoutPanel();
        private Label _lblTitle;
        private HtmlPanel _lblMessage = new HtmlPanel();
        private List<Button> _buttonCollection = new List<Button>();
        private static DialogResult _buttonResult = new DialogResult();
        private static Timer _timer;
        private static Point lastMousePos;

        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        private static extern bool MessageBeep(uint type);

        private lxMessageBox() {
            this.FormBorderStyle = FormBorderStyle.None;
            this.BackColor = Color.FromArgb(45, 45, 48);
            this.StartPosition = FormStartPosition.CenterScreen;
            this.Padding = new Padding(3);
            this.Width = 200;

            _lblTitle = new Label();
            _lblTitle.ForeColor = Color.White;
            _lblTitle.Font = new System.Drawing.Font("Segoe UI", 18);
            _lblTitle.Dock = DockStyle.Top;
            _lblTitle.Height = 50;

            _lblMessage.ForeColor = Color.White;
            _lblMessage.BackColor = BackColor;
            _lblMessage.Font = new Font("Segoe UI", 10);
            _lblMessage.Dock = DockStyle.Fill;

            _flpButtons.FlowDirection = FlowDirection.RightToLeft;
            _flpButtons.Dock = DockStyle.Fill;

            _plHeader.Dock = DockStyle.Fill;
            _plHeader.Padding = new Padding(10);
            _plHeader.Controls.Add(_lblMessage);
            _plHeader.Controls.Add(_lblTitle);

            _plFooter.Dock = DockStyle.Bottom;
            _plFooter.Padding = new Padding(20);
            _plFooter.BackColor = Color.FromArgb(37, 37, 38);
            _plFooter.Height = 75;
            _plFooter.Controls.Add(_flpButtons);


            List<Control> controlCollection = new List<Control>();
            controlCollection.Add(this);
            controlCollection.Add(_lblTitle);
            controlCollection.Add(_lblMessage);
            controlCollection.Add(_flpButtons);
            controlCollection.Add(_plHeader);
            controlCollection.Add(_plFooter);

            this.Controls.Add(_plHeader);
            this.Controls.Add(_plIcon);
            this.Controls.Add(_plFooter);
        }


        public static DialogResult Show(string message) {
            _msgBox = new lxMessageBox();
            _msgBox._lblMessage.Text = message;

            lxMessageBox.InitButtons(Buttons.OK);

            _msgBox.ShowDialog();
            MessageBeep(0);
            return _buttonResult;
        }

        public static DialogResult Show(string message, string title) {
            _msgBox = new lxMessageBox();
            _msgBox._lblMessage.Text = message;
            _msgBox._lblTitle.Text = title;
            _msgBox.Size = lxMessageBox.MessageSize(message);

            lxMessageBox.InitButtons(Buttons.OK);

            _msgBox.ShowDialog();
            MessageBeep(0);
            return _buttonResult;
        }

        public static DialogResult Show(string message, string title, Buttons buttons) {
            _msgBox = new lxMessageBox();
            _msgBox._lblMessage.Text = message;
            _msgBox._lblTitle.Text = title;
            _msgBox._plIcon.Hide();

            lxMessageBox.InitButtons(buttons);

            _msgBox.Size = lxMessageBox.MessageSize(message);
            _msgBox.ShowDialog();
            MessageBeep(0);
            return _buttonResult;
        }

        public static DialogResult Show(string message, string title, Buttons buttons, Icon icon) {
            _msgBox = new lxMessageBox();
            _msgBox._lblMessage.Text = message;
            _msgBox._lblTitle.Text = title;

            lxMessageBox.InitButtons(buttons);

            _msgBox.Size = lxMessageBox.MessageSize(message);
            _msgBox.ShowDialog();
            MessageBeep(0);
            return _buttonResult;
        }

        public static DialogResult Show(string message, string title, Buttons buttons, Icon icon, AnimateStyle style) {
            _msgBox = new lxMessageBox();
            _msgBox._lblMessage.Text = message;
            _msgBox._lblTitle.Text = title;
            _msgBox.Height = 0;

            lxMessageBox.InitButtons(buttons);

            _timer = new Timer();
            Size formSize = lxMessageBox.MessageSize(message);

            switch (style) {
                case lxMessageBox.AnimateStyle.SlideDown:
                    _msgBox.Size = new Size(formSize.Width, 0);
                    _timer.Interval = 1;
                    _timer.Tag = new ApplyAnimation(formSize, style);
                    break;

                case lxMessageBox.AnimateStyle.FadeIn:
                    _msgBox.Size = formSize;
                    _msgBox.Opacity = 0;
                    _timer.Interval = 20;
                    _timer.Tag = new ApplyAnimation(formSize, style);
                    break;

                case lxMessageBox.AnimateStyle.ZoomIn:
                    _msgBox.Size = new Size(formSize.Width + 100, formSize.Height + 100);
                    _timer.Tag = new ApplyAnimation(formSize, style);
                    _timer.Interval = 1;
                    break;
            }

            _timer.Tick += timer_Tick;
            _timer.Start();

            _msgBox.ShowDialog();
            MessageBeep(0);
            return _buttonResult;
        }

        static void timer_Tick(object sender, EventArgs e) {
            Timer timer = (Timer)sender;
            ApplyAnimation animate = (ApplyAnimation)timer.Tag;

            switch (animate.Style) {
                case lxMessageBox.AnimateStyle.SlideDown:
                    if (_msgBox.Height < animate.FormSize.Height) {
                        _msgBox.Height += 17;
                        _msgBox.Invalidate();
                    } else {
                        _timer.Stop();
                        _timer.Dispose();
                    }
                    break;

                case lxMessageBox.AnimateStyle.FadeIn:
                    if (_msgBox.Opacity < 1) {
                        _msgBox.Opacity += 0.1;
                        _msgBox.Invalidate();
                    } else {
                        _timer.Stop();
                        _timer.Dispose();
                    }
                    break;

                case lxMessageBox.AnimateStyle.ZoomIn:
                    if (_msgBox.Width > animate.FormSize.Width) {
                        _msgBox.Width -= 17;
                        _msgBox.Invalidate();
                    }
                    if (_msgBox.Height > animate.FormSize.Height) {
                        _msgBox.Height -= 17;
                        _msgBox.Invalidate();
                    }
                    break;
            }
        }

        private static void InitButtons(Buttons buttons) {
            switch (buttons) {
                case lxMessageBox.Buttons.AbortRetryIgnore:
                    _msgBox.InitAbortRetryIgnoreButtons();
                    break;

                case lxMessageBox.Buttons.OK:
                    _msgBox.InitOKButton();
                    break;

                case lxMessageBox.Buttons.OKCancel:
                    _msgBox.InitOKCancelButtons();
                    break;

                case lxMessageBox.Buttons.RetryCancel:
                    _msgBox.InitRetryCancelButtons();
                    break;

                case lxMessageBox.Buttons.YesNo:
                    _msgBox.InitYesNoButtons();
                    break;

                case lxMessageBox.Buttons.YesNoCancel:
                    _msgBox.InitYesNoCancelButtons();
                    break;
            }

            foreach (Button btn in _msgBox._buttonCollection) {
                btn.ForeColor = Color.FromArgb(170, 170, 170);
                btn.Font = new System.Drawing.Font("Segoe UI", 8);
                btn.Padding = new Padding(3);
                btn.FlatStyle = FlatStyle.Flat;
                btn.Height = 30;
                btn.FlatAppearance.BorderColor = Color.FromArgb(99, 99, 98);
                btn.Cursor = Cursors.Hand;
                _msgBox._flpButtons.Controls.Add(btn);
            }
        }

        private static void InitIcon(Icon icon) {
            switch (icon) {
                case lxMessageBox.Icon.Application:
                    _msgBox._picIcon.Image = SystemIcons.Application.ToBitmap();
                    break;

                case lxMessageBox.Icon.Exclamation:
                    _msgBox._picIcon.Image = SystemIcons.Exclamation.ToBitmap();
                    break;

                case lxMessageBox.Icon.Error:
                    _msgBox._picIcon.Image = SystemIcons.Error.ToBitmap();
                    break;

                case lxMessageBox.Icon.Info:
                    _msgBox._picIcon.Image = SystemIcons.Information.ToBitmap();
                    break;

                case lxMessageBox.Icon.Question:
                    _msgBox._picIcon.Image = SystemIcons.Question.ToBitmap();
                    break;

                case lxMessageBox.Icon.Shield:
                    _msgBox._picIcon.Image = SystemIcons.Shield.ToBitmap();
                    break;

                case lxMessageBox.Icon.Warning:
                    _msgBox._picIcon.Image = SystemIcons.Warning.ToBitmap();
                    break;
            }
        }

        private void InitAbortRetryIgnoreButtons() {
            Button btnAbort = new Button();
            btnAbort.Text = "Abort";
            btnAbort.Click += ButtonClick;

            Button btnRetry = new Button();
            btnRetry.Text = "Retry";
            btnRetry.Click += ButtonClick;

            Button btnIgnore = new Button();
            btnIgnore.Text = "Ignore";
            btnIgnore.Click += ButtonClick;

            this._buttonCollection.Add(btnAbort);
            this._buttonCollection.Add(btnRetry);
            this._buttonCollection.Add(btnIgnore);
        }

        private void InitOKButton() {
            Button btnOK = new Button();
            btnOK.Text = "Aceptar";
            btnOK.Click += ButtonClick;

            this._buttonCollection.Add(btnOK);
        }

        private void InitOKCancelButtons() {
            Button btnOK = new Button();
            btnOK.Text = "Actualizar";
            btnOK.Click += ButtonClick;

            Button btnCancel = new Button();
            btnCancel.Text = "Cerrar";
            btnCancel.Click += ButtonClick;


            this._buttonCollection.Add(btnOK);
            this._buttonCollection.Add(btnCancel);
        }

        private void InitRetryCancelButtons() {
            Button btnRetry = new Button();
            btnRetry.Text = "OK";
            btnRetry.Click += ButtonClick;

            Button btnCancel = new Button();
            btnCancel.Text = "Cancelar";
            btnCancel.Click += ButtonClick;


            this._buttonCollection.Add(btnRetry);
            this._buttonCollection.Add(btnCancel);
        }

        private void InitYesNoButtons() {
            Button btnYes = new Button();
            btnYes.Text = "Yes";
            btnYes.Click += ButtonClick;

            Button btnNo = new Button();
            btnNo.Text = "No";
            btnNo.Click += ButtonClick;


            this._buttonCollection.Add(btnYes);
            this._buttonCollection.Add(btnNo);
        }

        private void InitYesNoCancelButtons() {
            Button btnYes = new Button();
            btnYes.Text = "Abrir";
            btnYes.Click += ButtonClick;

            Button btnNo = new Button();
            btnNo.Text = "Copiar URL";
            btnNo.Click += ButtonClick;

            Button btnCancel = new Button();
            btnCancel.Text = "Cancel";
            btnCancel.Click += ButtonClick;

            this._buttonCollection.Add(btnYes);
            this._buttonCollection.Add(btnNo);
            this._buttonCollection.Add(btnCancel);
        }

        private static void ButtonClick(object sender, EventArgs e) {
            Button btn = (Button)sender;

            switch (btn.Text) {
                case "Abort":
                    _buttonResult = DialogResult.Abort;
                    break;

                case "Retry":
                    _buttonResult = DialogResult.Retry;
                    break;

                case "Ignore":
                    _buttonResult = DialogResult.Ignore;
                    break;

                case "Actualizar":
                    _buttonResult = DialogResult.OK;
                    break;

                case "Cancel":
                    _buttonResult = DialogResult.Cancel;
                    break;

                case "Abrir":
                    _buttonResult = DialogResult.Yes;
                    break;

                case "Copiar URL":
                    _buttonResult = DialogResult.No;
                    break;
            }

            _msgBox.Dispose();
        }

        private static Size MessageSize(string message) {
            Graphics g = _msgBox.CreateGraphics();
            int width = 350;
            int height = 260;

            SizeF size = g.MeasureString(message, new System.Drawing.Font("Segoe UI", 10));

            if (message.Length < 150) {
                if ((int)size.Width > 350) {
                    width = (int)size.Width;
                }
            } else {
                string[] groups = (from Match m in Regex.Matches(message, ".{1,180}") select m.Value).ToArray();
                int lines = groups.Length;
                width = 490;
                height += (int)(size.Height) * lines;
            }
            return new Size(width, height);
        }

        protected override CreateParams CreateParams {
            get {
                CreateParams cp = base.CreateParams;
                cp.ClassStyle |= CS_DROPSHADOW;
                return cp;
            }
        }


        public enum Buttons {
            AbortRetryIgnore = 1,
            OK = 2,
            OKCancel = 3,
            RetryCancel = 4,
            YesNo = 5,
            YesNoCancel = 6
        }

        public enum Icon {
            Application = 1,
            Exclamation = 2,
            Error = 3,
            Warning = 4,
            Info = 5,
            Question = 6,
            Shield = 7,
            Search = 8
        }

        public enum AnimateStyle {
            SlideDown = 1,
            FadeIn = 2,
            ZoomIn = 3
        }
        class ApplyAnimation {
            public Size FormSize;
            public lxMessageBox.AnimateStyle Style;

            public ApplyAnimation(Size formSize, lxMessageBox.AnimateStyle style) {
                this.FormSize = formSize;
                this.Style = style;
            }
        }

        private void InitializeComponent() {
            this.SuspendLayout();
            // 
            // lxMessageBox
            // 
            this.ClientSize = new System.Drawing.Size(284, 261);
            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
            this.Name = "lxMessageBox";
            this.ResumeLayout(false);

        }
    }
}