HawkeyeVision/framework/MaterialSkin.Core/Controls/MaterialRaisedButton.cs

using System.ComponentModel;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Drawing.Text;
using System.Windows.Forms;
using MaterialSkin.Animations;
using System;

namespace MaterialSkin.Controls
{
    public class MaterialRaisedButton : Button, IMaterialControl
    {
        [Browsable(false)]
        public int Depth { get; set; }
        [Browsable(false)]
        public MaterialSkinManager SkinManager => MaterialSkinManager.Instance;
        [Browsable(false)]
        public MouseState MouseState { get; set; }
        public bool Primary { get; set; }

        
        public bool DrawBorder
        {
            get { return _drawBorder; }
            set
            {
                _drawBorder = value;
            }
        }

        private readonly AnimationManager _animationManager;

        private SizeF _textSize;

        private Image _icon;
        private bool _drawBorder;
        private Point _lastLocation;
        private bool _wasClick;

        public Image Icon
        {
            get { return _icon; }
            set
            {
                _icon = value;
                if (AutoSize)
                    Size = GetPreferredSize();
                Invalidate();
            }
        }

        public MaterialRaisedButton()
        {
            Primary = true;
            Cursor = Cursors.Hand;
            _animationManager = new AnimationManager(false)
            {
                Increment = 0.02,
                AnimationType = AnimationType.EaseOut
            };
            _animationManager.OnAnimationProgress += sender => Invalidate();
            _animationManager.OnAnimationFinished +=AnimationManagerOnOnAnimationFinished;
            AutoSizeMode = AutoSizeMode.GrowAndShrink;
         
        }

        private void AnimationManagerOnOnAnimationFinished(object o)
        {
            if (_wasClick)
            {
                _wasClick = false;
                
                
            }
        }

        public override string Text
        {
            get { return base.Text; }
            set
            {
                base.Text = value;
                _textSize = CreateGraphics().MeasureString(value.ToUpper(), SkinManager.ROBOTO_MEDIUM_10);
                if (AutoSize)
                    Size = GetPreferredSize();
                Invalidate();
            }
        }

        protected override void OnMouseUp(MouseEventArgs mevent)
        {
            base.OnMouseUp(mevent);

            
        }

        protected override void OnMouseDown(MouseEventArgs mevent)
        {
            base.OnMouseDown(mevent);
            _lastLocation = mevent.Location;

        }

        protected override void OnClick(EventArgs e)
        {
            _animationManager.StartNewAnimation(AnimationDirection.In,_lastLocation);
            base.OnClick(e);
        }


        protected override void OnPaint(PaintEventArgs pevent)
        {
            try
            {
                var g = pevent.Graphics;
                g.SmoothingMode = SmoothingMode.AntiAlias;
                //g.TextRenderingHint = TextRenderingHint.AntiAlias;

                g.Clear(Parent.BackColor);

                using (var backgroundPath = DrawHelper.CreateRoundRect(ClientRectangle.X,
                           ClientRectangle.Y,
                           ClientRectangle.Width - 1,
                           ClientRectangle.Height - 1,
                           1f))
                {

                    g.FillPath(
                        Enabled
                            ? (Primary
                                ? SkinManager.ColorScheme.PrimaryBrush
                                : SkinManager.GetRaisedButtonBackgroundBrush())
                            : Brushes.DarkGray, backgroundPath);
                    if (!Primary && this.DrawBorder)
                    {
                        g.DrawPath(SkinManager.ColorScheme.PrimaryPen, backgroundPath);
                    }
                }

                if (_animationManager.IsAnimating())
                {
                    for (int i = 0; i < _animationManager.GetAnimationCount(); i++)
                    {
                        var animationValue = _animationManager.GetProgress(i);
                        var animationSource = _animationManager.GetSource(i);
                        var rippleBrush = new SolidBrush(Color.FromArgb((int) (51 - (animationValue * 50)),
                            Primary ? Color.White : SkinManager.ColorScheme.PrimaryColor));
                        var rippleSize = (int) (animationValue * Width * 2);
                        g.FillEllipse(rippleBrush,
                            new Rectangle(animationSource.X - rippleSize / 2, animationSource.Y - rippleSize / 2,
                                rippleSize, rippleSize));
                    }
                }

                //Icon
                var iconRect = new Rectangle(8, 6, 24, 24);

                if (string.IsNullOrEmpty(Text))
                    // Center Icon
                    iconRect.X += 2;

                if (Icon != null)
                    g.DrawImage(Icon, iconRect);

                //Text
                var textRect = ClientRectangle;

                if (Icon != null)
                {
                    //
                    // Resize and move Text container
                    //

                    // First 8: left padding
                    // 24: icon width
                    // Second 4: space between Icon and Text
                    // Third 8: right padding
                    textRect.Width -= 8 + 24 + 4 + 8;

                    // First 8: left padding
                    // 24: icon width
                    // Second 4: space between Icon and Text
                    textRect.X += 8 + 24 + 4;
                }

                g.DrawString(
                    Text.ToUpper(),
                    Font,
                    Primary ? SkinManager.GetRaisedButtonTextBrush(Primary) : SkinManager.ColorScheme.PrimaryBrush,
                    textRect,
                    new StringFormat {Alignment = StringAlignment.Center, LineAlignment = StringAlignment.Center});
            }
            catch
            {
            }
        }

        private Size GetPreferredSize()
        {
            return GetPreferredSize(new Size(0, 0));
        }

        public override Size GetPreferredSize(Size proposedSize)
        {
            // Provides extra space for proper padding for content
            var extra = 16;

            if (Icon != null)
                // 24 is for icon size
                // 4 is for the space between icon & text
                extra += 24 + 4;

            return new Size((int)Math.Ceiling(_textSize.Width) + extra, 36);
        }
    }
}