闲来无事，从网上找了不少自定义控件，然后整理了一下，做了一个水晶按钮
/// <summary> /// 表示 Windows 的按钮控 /// </summary> [Description("表示 Windows 的按钮控件"), DefaultEvent("Click"), ToolboxBitmap(typeof (System.Windows.Forms.Button))] public class Button : Control { public Button() { SetStyle(ControlStyles.AllPaintingInWmPaint, true); SetStyle(ControlStyles.DoubleBuffer, true); SetStyle(ControlStyles.ResizeRedraw, true); SetStyle(ControlStyles.Selectable, true); SetStyle(ControlStyles.SupportsTransparentBackColor, true); SetStyle(ControlStyles.UserPaint, true); _fadeIn.Interval = 30; _fadeOut.Interval = 30; _fadeIn.Tick += FadeIn_Tick; _fadeOut.Tick += FadeOut_Tick; } /// <summary> /// 淡出 /// </summary> private void FadeOut_Tick(object sender, EventArgs e) { if (ButtonStyle == Style.Flat) { _glowAlpha = 0; } if (_glowAlpha - 30 <= 0) { _glowAlpha = 0; _fadeOut.Stop(); } else { _glowAlpha -= 30; } Invalidate(); } /// <summary> /// 淡入 /// </summary> private void FadeIn_Tick(object sender, EventArgs e) { if (ButtonStyle == Style.Flat) { _glowAlpha = 0; } if (_glowAlpha + 30 >= 255) { _glowAlpha = 255; _fadeIn.Stop(); } else { _glowAlpha += 30; } Invalidate(); } private readonly Color[] _colorArray = { Color.White, Color.FromArgb(172, 168, 153), Color.White, Color.FromArgb(236, 233, 216) }; private float _radius = 3; private Style _mButtonStyle = Style.Default; private State _mButtonState = State.None; private readonly Timer _fadeIn = new Timer(); private readonly Timer _fadeOut = new Timer(); private int _glowAlpha; private ContentAlignment _mTextAlign = ContentAlignment.MiddleCenter; private ContentAlignment _mImageAlign = ContentAlignment.BottomCenter; private Size _mImageSize = new Size(24, 24); private Image _mImage; private Image _backImage; /// <summary> /// 高亮颜色 /// </summary> [Category("Appearance"), Description("高亮颜色"), DefaultValue(typeof(Color), "White"), Browsable(true)] public Color LightColor { set { _colorArray[0] = value; Invalidate(); } get { return _colorArray[0]; } } /// <summary> /// 底色 /// </summary> [Category("Appearance"), Description("底色"), DefaultValue(typeof(Color), "172, 168, 153"), Browsable(true)] public Color PrimaryColor { set { _colorArray[1] = value; Invalidate(); } get { return _colorArray[1]; } } /// <summary> /// 亮点颜色 /// </summary> [Category("Appearance"), Description("亮点颜色"), DefaultValue(typeof(Color), "White"), Browsable(true)] public Color GlowColor { set { _colorArray[2] = value; Invalidate(); } get { return _colorArray[2]; } } /// <summary> /// 基本色 /// </summary> [Category("Appearance"), Description("基本色"), DefaultValue(typeof(Color), "236, 233, 216"), Browsable(true)] public Color BaseColor { set { _colorArray[3] = value; Invalidate(); } get { return _colorArray[3]; } } /// <summary> /// 角的度数 /// </summary> [Category("Appearance"), Description("角的度数"), DefaultValue(typeof (float), "8"), Browsable(true)] public float CornerRadius { set { _radius = value; Invalidate(); } get { return _radius; } } /// <summary> /// 角的度数 /// </summary> [Category("Appearance"), Description("角的度数"), DefaultValue(typeof (Style), "Default"), Browsable(true)] public Style ButtonStyle { get { return _mButtonStyle; } set { _mButtonStyle = value; Invalidate(); } } /// <summary> /// 按钮文本的对其方式 /// </summary> [Category("Text"), Description("按钮文本的对其方式"), DefaultValue(typeof (Style), "MiddleCenter"), Browsable(true)] public ContentAlignment TextAlign { get { return _mTextAlign; } set { _mTextAlign = value; Invalidate(); } } /// <summary> /// 图片的对齐方式 /// </summary> [Category("图像"), Description("图片的对齐方式"), DefaultValue(typeof (ContentAlignment), "MiddleLeft"), Browsable(true)] public ContentAlignment ImageAlign { set { _mImageAlign = value; Invalidate(); } get { return _mImageAlign; } } /// <summary> /// 图片的高度和宽度 /// </summary> [Category("图像"), Description("图片的高度和宽度"), DefaultValue(typeof(ContentAlignment), "24,24"), Browsable(true)] public Size ImageSize { set { _mImageSize = value; Invalidate(); } get { return _mImageSize; } } /// <summary> /// 图片 /// </summary> [Category("图像"), Description("图片"), DefaultValue(null), Browsable(true)] public Image Image { set { _mImage = value; Invalidate(); } get { return _mImage; } } [Category("Appearance"), Description("背景图"), DefaultValue(null), Browsable(true)] public Image BackImage { set { _backImage = value; Invalidate(); } get { return _backImage; } } /// <summary> /// 获取绘制区域路径 /// </summary> /// <param name="r">区域</param> /// <param name="r1">角1度数</param> /// <param name="r2">角2度数</param> /// <param name="r3">角3度数</param> /// <param name="r4">角4度数</param> /// <returns></returns> private GraphicsPath RoundRect(RectangleF r, float r1, float r2, float r3, float r4) { float x = r.X, y = r.Y, w = r.Width, h = r.Height; var gp = new GraphicsPath(); gp.AddBezier(x, y + r1, x, y, x + r1, y, x + r1, y); gp.AddLine(x + r1, y, x + w - r2, y); gp.AddBezier(x + w - r2, y, x + w, y, x + w, y + r2, x + w, y + r2); gp.AddLine(x + w, y + r2, x + w, y + h - r3); gp.AddBezier(x + w, y + h - r3, x + w, y + h, x + w - r3, y + h, x + w - r3, y + h); gp.AddLine(x + w - r3, y + h, x + r4, y + h); gp.AddBezier(x + r4, y + h, x, y + h, x, y + h - r4, x, y + h - r4); gp.AddLine(x, y + h - r4, x, y + r1); return gp; } /// <summary> /// 获取绘制文本的方式 /// </summary> /// <returns></returns> private StringFormat StringFormatAlignment() { var sf = new StringFormat(); switch (TextAlign) { case ContentAlignment.TopLeft: case ContentAlignment.TopCenter: case ContentAlignment.TopRight: sf.LineAlignment = StringAlignment.Near; break; case ContentAlignment.MiddleLeft: case ContentAlignment.MiddleCenter: case ContentAlignment.MiddleRight: sf.LineAlignment = StringAlignment.Center; break; case ContentAlignment.BottomLeft: case ContentAlignment.BottomCenter: case ContentAlignment.BottomRight: sf.LineAlignment = StringAlignment.Far; break; } switch (TextAlign) { case ContentAlignment.TopLeft: case ContentAlignment.MiddleLeft: case ContentAlignment.BottomLeft: sf.Alignment = StringAlignment.Near; break; case ContentAlignment.TopCenter: case ContentAlignment.MiddleCenter: case ContentAlignment.BottomCenter: sf.Alignment = StringAlignment.Center; break; case ContentAlignment.TopRight: case ContentAlignment.MiddleRight: case ContentAlignment.BottomRight: sf.Alignment = StringAlignment.Far; break; } return sf; } /// <summary> /// 绘制外部 /// </summary> /// <param name="g"></param> private void DrawOuterStroke(Graphics g) { if (ButtonStyle == Style.Flat && _mButtonState == State.None) { return; } Rectangle r = ClientRectangle; r.Width -= 1; r.Height -= 1; using (GraphicsPath rr = RoundRect(r, CornerRadius, CornerRadius, CornerRadius, CornerRadius)) { using (var p = new Pen(PrimaryColor)) { g.DrawPath(p, rr); } } } /// <summary> /// 绘制内部 /// </summary> /// <param name="g"></param> private void DrawInnerStroke(Graphics g) { if (ButtonStyle == Style.Flat && _mButtonState == State.None) { return; } Rectangle r = ClientRectangle; r.X++; r.Y++; r.Width -= 3; r.Height -= 3; using (GraphicsPath rr = RoundRect(r, CornerRadius, CornerRadius, CornerRadius, CornerRadius)) { using (var p = new Pen(LightColor)) { g.DrawPath(p, rr); } } } /// <summary> /// 绘制背景 /// </summary> /// <param name="g"></param> private void DrawBackground(Graphics g) { if (ButtonStyle == Style.Flat && _mButtonState == State.None) { return; } int alpha = (_mButtonState == State.Pressed) ? 204 : 127; Rectangle r = ClientRectangle; r.Width--; r.Height--; using (GraphicsPath rr = RoundRect(r, CornerRadius, CornerRadius, CornerRadius, CornerRadius)) { using (var sb = new SolidBrush(BaseColor)) { g.FillPath(sb, rr); } SetClip(g); if (BackImage != null) { g.DrawImage(BackImage, ClientRectangle); } g.ResetClip(); using (var sb = new SolidBrush(Color.FromArgb(alpha, PrimaryColor))) { g.FillPath(sb, rr); } } } /// <summary> /// 绘制高亮 /// </summary> /// <param name="g"></param> private void DrawHighlight(Graphics g) { if (ButtonStyle == Style.Flat && _mButtonState == State.None) { return; } int alpha = (_mButtonState == State.Pressed) ? 60 : 150; var rect = new Rectangle(0, 0, Width, Height/2); using (GraphicsPath r = RoundRect(rect, CornerRadius, CornerRadius, 0, 0)) { using (var lg = new LinearGradientBrush(r.GetBounds(), Color.FromArgb(alpha, LightColor), Color.FromArgb(alpha/3, LightColor), LinearGradientMode.Vertical)) { g.FillPath(lg, r); } } } /// <summary> /// 绘制亮点 /// </summary> /// <param name="g"></param> private void DrawGlow(Graphics g) { if (_mButtonState == State.Pressed) { return; } SetClip(g); using (var glow = new GraphicsPath()) { glow.AddEllipse(-5, Height/2 - 10, Width + 11, Height + 11); using (var gl = new PathGradientBrush(glow)) { gl.CenterColor = Color.FromArgb(_glowAlpha, GlowColor); gl.SurroundColors = new[] {Color.FromArgb(0, GlowColor)}; g.FillPath(gl, glow); } } g.ResetClip(); } /// <summary> /// 绘制剪辑区域 /// </summary> /// <param name="g"></param> private void SetClip(Graphics g) { Rectangle r = ClientRectangle; r.X++; r.Y++; r.Width -= 3; r.Height -= 3; using (GraphicsPath rr = RoundRect(r, CornerRadius, CornerRadius, CornerRadius, CornerRadius)) { g.SetClip(rr); } } /// <summary> /// 绘制文本 /// </summary> /// <param name="g"></param> private void DrawText(Graphics g) { StringFormat sf = StringFormatAlignment(); var s = g.MeasureString(Text, Font); var x = (int) ((Width - s.Width - 1)/2); var y = (int) ((Height - s.Height - 1)/3*2); var r = new Rectangle(x, y, (int) s.Width + 1, (int) s.Height + 1); g.DrawString(Text, Font, new SolidBrush(ForeColor), r, sf); } /// <summary> /// 绘制图片 /// </summary> /// <param name="g"></param> private void DrawImage(Graphics g) { if (Image == null) { return; } var r = new Rectangle(8, 8, ImageSize.Width, ImageSize.Height); switch (ImageAlign) { case ContentAlignment.TopCenter: r = new Rectangle(Width/2 - ImageSize.Width/2, 8, ImageSize.Width, ImageSize.Height); break; case ContentAlignment.TopRight: r = new Rectangle(Width - 8 - ImageSize.Width, 8, ImageSize.Width, ImageSize.Height); break; case ContentAlignment.MiddleLeft: r = new Rectangle(8, Height/2 - ImageSize.Height/2, ImageSize.Width, ImageSize.Height); break; case ContentAlignment.MiddleCenter: r = new Rectangle(Width/2 - ImageSize.Width/2, Height/2 - ImageSize.Height/2, ImageSize.Width, ImageSize.Height); break; case ContentAlignment.MiddleRight: r = new Rectangle(Width - 8 - ImageSize.Width, Height/2 - ImageSize.Height/2, ImageSize.Width, ImageSize.Height); break; case ContentAlignment.BottomLeft: r = new Rectangle(8, Height - 8 - ImageSize.Height, ImageSize.Width, ImageSize.Height); break; case ContentAlignment.BottomCenter: r = new Rectangle(Width/2 - ImageSize.Width/2, Height - 8 - ImageSize.Height, ImageSize.Width, ImageSize.Height); break; case ContentAlignment.BottomRight: r = new Rectangle(Width - 8 - ImageSize.Width, Height - 8 - ImageSize.Height, ImageSize.Width, ImageSize.Height); break; } g.DrawImage(Image, r); } /// <summary> /// 重绘按钮 /// </summary> /// <param name="pevent"></param> protected override void OnPaint(PaintEventArgs pevent) { base.OnPaint(pevent); pevent.Graphics.SmoothingMode = SmoothingMode.AntiAlias; pevent.Graphics.InterpolationMode = InterpolationMode.HighQualityBicubic; DrawBackground(pevent.Graphics); DrawHighlight(pevent.Graphics); DrawImage(pevent.Graphics); DrawText(pevent.Graphics); DrawGlow(pevent.Graphics); DrawOuterStroke(pevent.Graphics); DrawInnerStroke(pevent.Graphics); } /// <summary> /// 鼠标移入 /// </summary> /// <param name="e"></param> protected override void OnMouseEnter(EventArgs e) { _mButtonState = State.Hover; _fadeOut.Stop(); _fadeIn.Start(); base.OnMouseEnter(e); } /// <summary> /// 鼠标移出 /// </summary> /// <param name="e"></param> protected override void OnMouseLeave(EventArgs e) { _mButtonState = State.None; if (_mButtonStyle == Style.Flat) { _glowAlpha = 0; } _fadeIn.Stop(); _fadeOut.Start(); base.OnMouseLeave(e); } /// <summary> /// 鼠标按下 /// </summary> /// <param name="mevent"></param> protected override void OnMouseDown(MouseEventArgs mevent) { if (mevent.Button == MouseButtons.Left) { _mButtonState = State.Pressed; if (_mButtonStyle != Style.Flat) { _glowAlpha = 255; } _fadeIn.Stop(); _fadeOut.Stop(); Invalidate(); } base.OnMouseDown(mevent); } /// <summary> /// 鼠标弹起 /// </summary> /// <param name="mevent"></param> protected override void OnMouseUp(MouseEventArgs mevent) { if (mevent.Button == MouseButtons.Left) { _mButtonState = State.Hover; _fadeIn.Stop(); _fadeOut.Stop(); Invalidate(); } base.OnMouseUp(mevent); } /// <summary> /// 按钮变化 /// </summary> /// <param name="e"></param> protected override void OnResize(EventArgs e) { Rectangle r = ClientRectangle; r.X -= 1; r.Y -= 1; r.Width += 2; r.Height += 2; using (GraphicsPath rr = RoundRect(r, CornerRadius, CornerRadius, CornerRadius, CornerRadius)) { Region = new Region(rr); } base.OnResize(e); } /// <summary> /// 鼠标活动类别 /// </summary> public enum State { /// <summary> /// 正常状态 /// </summary> None, /// <summary> /// 鼠标悬浮状态 /// </summary> Hover, /// <summary> /// 鼠标按下 /// </summary> Pressed } /// <summary> /// 绘制样式 /// </summary> public enum Style { /// <summary> /// 只画背景的鼠标 /// </summary> Default, /// <summary> /// 绘制按钮作为正常 /// </summary> Flat }; }