网站颜色配色,学校网站建设招标,做网站 证书 浏览器,圣弓 网站建设/* 作者#xff1a;Starts_2000* 日期#xff1a;2009-07-30* 网站#xff1a;http://www.csharpwin.com CS 程序员之窗。* 你可以免费使用或修改以下代码#xff0c;但请保留版权信息。* 具体请查看 CS程序员之窗开源协议#xff08;http://www.csharpwin.com/csol.htmlStarts_2000* 日期2009-07-30* 网站http://www.csharpwin.com CS 程序员之窗。* 你可以免费使用或修改以下代码但请保留版权信息。* 具体请查看 CS程序员之窗开源协议http://www.csharpwin.com/csol.html。*/[ToolboxBitmap(typeof(CheckBox))]public class CheckBoxEx : CheckBox{private Color _baseColor Color.FromArgb(51, 161, 224);private ControlState _controlState;private static readonly ContentAlignment RightAlignment ContentAlignment.TopRight |ContentAlignment.BottomRight |ContentAlignment.MiddleRight;private static readonly ContentAlignment LeftAligbment ContentAlignment.TopLeft |ContentAlignment.BottomLeft |ContentAlignment.MiddleLeft;public CheckBoxEx(): base(){SetStyle(ControlStyles.UserPaint |ControlStyles.AllPaintingInWmPaint |ControlStyles.OptimizedDoubleBuffer |ControlStyles.ResizeRedraw |ControlStyles.SupportsTransparentBackColor, true);}public Color BaseColor{get { return _baseColor; }set{_baseColor value;base.Invalidate();}}protected virtual int DefaultCheckButtonWidth{get { return 30; }}internal ControlState ControlState{get { return _controlState; }set{if (_controlState ! value){_controlState value;base.Invalidate();}}}protected override void OnMouseEnter(EventArgs e){base.OnMouseEnter(e);ControlState ControlState.Hover;}protected override void OnMouseLeave(EventArgs e){base.OnMouseLeave(e);ControlState ControlState.Normal;}protected override void OnMouseDown(MouseEventArgs e){base.OnMouseDown(e);if (e.Button MouseButtons.Left e.Clicks 1){ControlState ControlState.Pressed;}}protected override void OnMouseUp(MouseEventArgs e){base.OnMouseUp(e);if (e.Button MouseButtons.Left e.Clicks 1){if (ClientRectangle.Contains(e.Location)){ControlState ControlState.Hover;}else{ControlState ControlState.Normal;}}}protected override void OnPaint(PaintEventArgs e){base.OnPaint(e);base.OnPaintBackground(e);Graphics g e.Graphics;Rectangle checkButtonRect;Rectangle textRect;CalculateRect(out checkButtonRect, out textRect);g.SmoothingMode SmoothingMode.AntiAlias;Color backColor ControlPaint.Light(_baseColor);Color borderColor;Color innerBorderColor;Color checkColor;bool hover false;if (Enabled){switch (ControlState){case ControlState.Hover:borderColor _baseColor;innerBorderColor _baseColor;checkColor GetColor(_baseColor, 0, 35, 24, 9);hover true;break;case ControlState.Pressed:borderColor _baseColor;innerBorderColor GetColor(_baseColor, 0, -13, -8, -3);checkColor GetColor(_baseColor, 0, -35, -24, -9);hover true;break;default:borderColor _baseColor;innerBorderColor Color.Empty;checkColor _baseColor;break;}}else{borderColor SystemColors.ControlDark;innerBorderColor SystemColors.ControlDark;checkColor SystemColors.ControlDark;}using (SolidBrush brush new SolidBrush(Color.White)){g.FillRectangle(brush, checkButtonRect);}if (hover){using (Pen pen new Pen(innerBorderColor, 2F)){g.DrawRectangle(pen, checkButtonRect);}}switch (CheckState){case CheckState.Checked:DrawCheckedFlag(g,checkButtonRect,checkColor);break;case CheckState.Indeterminate:checkButtonRect.Inflate(-1, -1);using (GraphicsPath path new GraphicsPath()){path.AddEllipse(checkButtonRect);using (PathGradientBrush brush new PathGradientBrush(path)){brush.CenterColor checkColor;brush.SurroundColors new Color[] { Color.White };Blend blend new Blend();blend.Positions new float[] { 0f, 0.4f, 1f };blend.Factors new float[] { 0f, 0.3f, 1f };brush.Blend blend;g.FillEllipse(brush, checkButtonRect);}}checkButtonRect.Inflate(1, 1);break;}using (Pen pen new Pen(borderColor)){g.DrawRectangle(pen, checkButtonRect);}Color textColor Enabled ? ForeColor : SystemColors.GrayText;TextRenderer.DrawText(g,Text,Font,textRect,textColor,GetTextFormatFlags(TextAlign, RightToLeft RightToLeft.Yes));}private void CalculateRect(out Rectangle checkButtonRect, out Rectangle textRect){checkButtonRect new Rectangle(0, 0, DefaultCheckButtonWidth, DefaultCheckButtonWidth);textRect Rectangle.Empty;bool bCheckAlignLeft (int)(LeftAligbment CheckAlign) ! 0;bool bCheckAlignRight (int)(RightAlignment CheckAlign) ! 0;bool bRightToLeft RightToLeft RightToLeft.Yes;if ((bCheckAlignLeft !bRightToLeft) ||(bCheckAlignRight bRightToLeft)){switch (CheckAlign){case ContentAlignment.TopRight:case ContentAlignment.TopLeft:checkButtonRect.Y 2;break;case ContentAlignment.MiddleRight:case ContentAlignment.MiddleLeft:checkButtonRect.Y (Height - DefaultCheckButtonWidth) / 2;break;case ContentAlignment.BottomRight:case ContentAlignment.BottomLeft:checkButtonRect.Y Height - DefaultCheckButtonWidth - 2;break;}checkButtonRect.X 1;textRect new Rectangle(checkButtonRect.Right 2,0,Width - checkButtonRect.Right - 4,Height);}else if ((bCheckAlignRight !bRightToLeft)|| (bCheckAlignLeft bRightToLeft)){switch (CheckAlign){case ContentAlignment.TopLeft:case ContentAlignment.TopRight:checkButtonRect.Y 2;break;case ContentAlignment.MiddleLeft:case ContentAlignment.MiddleRight:checkButtonRect.Y (Height - DefaultCheckButtonWidth) / 2;break;case ContentAlignment.BottomLeft:case ContentAlignment.BottomRight:checkButtonRect.Y Height - DefaultCheckButtonWidth - 2;break;}checkButtonRect.X Width - DefaultCheckButtonWidth - 1;textRect new Rectangle(2, 0, Width - DefaultCheckButtonWidth - 6, Height);}else{switch (CheckAlign){case ContentAlignment.TopCenter:checkButtonRect.Y 2;textRect.Y checkButtonRect.Bottom 2;textRect.Height Height - DefaultCheckButtonWidth - 6;break;case ContentAlignment.MiddleCenter:checkButtonRect.Y (Height - DefaultCheckButtonWidth) / 2;textRect.Y 0;textRect.Height Height;break;case ContentAlignment.BottomCenter:checkButtonRect.Y Height - DefaultCheckButtonWidth - 2;textRect.Y 0;textRect.Height Height - DefaultCheckButtonWidth - 6;break;}checkButtonRect.X (Width - DefaultCheckButtonWidth) / 2;textRect.X 2;textRect.Width Width - 4;}}private void DrawCheckedFlag(Graphics graphics, Rectangle rect, Color color){PointF[] points new PointF[3];points[0] new PointF(rect.X rect.Width / 4.5f,rect.Y rect.Height / 2.5f);points[1] new PointF(rect.X rect.Width / 2.5f,rect.Bottom - rect.Height / 3f);points[2] new PointF(rect.Right - rect.Width / 4.0f,rect.Y rect.Height / 4.5f);using (Pen pen new Pen(color, 2F)){graphics.DrawLines(pen, points);}}private Color GetColor(Color colorBase, int a, int r, int g, int b){int a0 colorBase.A;int r0 colorBase.R;int g0 colorBase.G;int b0 colorBase.B;if (a a0 255) { a 255; } else { a Math.Max(a a0, 0); }if (r r0 255) { r 255; } else { r Math.Max(r r0, 0); }if (g g0 255) { g 255; } else { g Math.Max(g g0, 0); }if (b b0 255) { b 255; } else { b Math.Max(b b0, 0); }return Color.FromArgb(a, r, g, b);}internal static TextFormatFlags GetTextFormatFlags(ContentAlignment alignment,bool rightToleft){TextFormatFlags flags TextFormatFlags.WordBreak |TextFormatFlags.SingleLine;if (rightToleft){flags | TextFormatFlags.RightToLeft | TextFormatFlags.Right;}switch (alignment){case ContentAlignment.BottomCenter:flags | TextFormatFlags.Bottom | TextFormatFlags.HorizontalCenter;break;case ContentAlignment.BottomLeft:flags | TextFormatFlags.Bottom | TextFormatFlags.Left;break;case ContentAlignment.BottomRight:flags | TextFormatFlags.Bottom | TextFormatFlags.Right;break;case ContentAlignment.MiddleCenter:flags | TextFormatFlags.HorizontalCenter |TextFormatFlags.VerticalCenter;break;case ContentAlignment.MiddleLeft:flags | TextFormatFlags.VerticalCenter | TextFormatFlags.Left;break;case ContentAlignment.MiddleRight:flags | TextFormatFlags.VerticalCenter | TextFormatFlags.Right;break;case ContentAlignment.TopCenter:flags | TextFormatFlags.Top | TextFormatFlags.HorizontalCenter;break;case ContentAlignment.TopLeft:flags | TextFormatFlags.Top | TextFormatFlags.Left;break;case ContentAlignment.TopRight:flags | TextFormatFlags.Top | TextFormatFlags.Right;break;}return flags;}}/// summary/// 控件的状态。/// /summaryinternal enum ControlState{/// summary/// 正常。/// /summaryNormal,/// summary/// 鼠标进入。/// /summaryHover,/// summary/// 鼠标按下。/// /summaryPressed,/// summary/// 获得焦点。/// /summaryFocused,}
