コード例 #1
0
        protected override void OnPaint(PaintEventArgs pevent)
        {
            base.OnPaint(pevent);
            var g = pevent.Graphics;

            g.TextRenderingHint = TextRenderingHint.AntiAlias;

            GraphicsPath bgGP = DrawHelper.CreateRoundRect(ClientRectangle.X,
                                                           ClientRectangle.Y,
                                                           ClientRectangle.Width - 1,
                                                           ClientRectangle.Height - 1,
                                                           _roundedCorner);

            //Hover
            Color c = MaterialSkinManager.GetFlatButtonHoverBackgroundColor();

            using (Brush b = new SolidBrush(Color.FromArgb((int)(hoverAnimationManager.GetProgress() * c.A), c.RemoveAlpha())))
                g.FillPath(b, bgGP);

            //Ripple
            if (animationManager.IsAnimating())
            {
                g.SmoothingMode = SmoothingMode.AntiAlias;
                for (int i = 0; i < animationManager.GetAnimationCount(); i++)
                {
                    var animationValue  = animationManager.GetProgress(i);
                    var animationSource = animationManager.GetSource(i);

                    using (Brush rippleBrush = new SolidBrush(Color.FromArgb((int)(101 - (animationValue * 100)), Color.Black)))
                    {
                        var rippleSize = (int)(animationValue * Width * 2);
                        g.FillEllipse(rippleBrush, new Rectangle(animationSource.X - rippleSize / 2, animationSource.Y - rippleSize / 2, rippleSize, rippleSize));
                    }
                }
                g.SmoothingMode = SmoothingMode.None;
            }
            //Text
            Rectangle textRect = ClientRectangle;

            //Icon
            if (Icon != null)
            {
                Rectangle iconRect = new Rectangle(8, textRect.Height / 2 - 12, 24, 24);

                if (String.IsNullOrEmpty(Text))
                {
                    // Center Icon
                    iconRect.X = textRect.Width / 2 - 12;
                }

                g.DrawImage(Icon, iconRect);
            }

            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,
                Enabled ? (Primary ? MaterialSkinManager.ColorScheme.PrimaryBrush : MaterialSkinManager.GetPrimaryTextBrush()) : MaterialSkinManager.GetFlatButtonDisabledTextBrush(),
                textRect,
                new StringFormat {
                Alignment = StringAlignment.Center, LineAlignment = StringAlignment.Center
            }
                );
            if (!DesignMode && Controls.Count > 0)
            {
                this.DrawChildShadow(g);
            }
        }