/// <summary>
/// 画按钮
/// </summary>
/// <param name="graphics"></param>
/// <param name="rect">矩形区域</param>
/// <param name="fillBrush">填充画刷</param>
/// <param name="borderPen">边框画笔</param>
/// <param name="borderSize">边框大小</param>
/// <param name="radius">圆角半径</param>
/// <param name="radiusCorners">圆角数量</param>
/// <param name="font">字体</param>
/// <param name="textColor">文字颜色</param>
/// <param name="text">文字内容</param>
/// <param name="borderOpen">边框开放的方向</param>
/// <param name="openPen">开放画笔</param>
public static void DrawButton(this Graphics graphics, Rectangle rect, Brush fillBrush
, Pen borderPen, int borderSize, int radius, CcCtrlCorner radiusCorners
, Font font, Color textColor, string text, CcCtrlPosition borderOpen = CcCtrlPosition.None, Pen openPen = null)
{
//画矩形
graphics.DrawButtonRect(rect, fillBrush, borderPen, borderSize, radius, radiusCorners, borderOpen, openPen);
//画文字
graphics.DrawButtonText(rect, text, font, textColor);
}
public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
{
if (null == value)
{
return(new CcBorder());
}
//从字符串解析
if (value is string stringValue)
{
if (stringValue.Length <= 0)
{
return(new CcBorder());
}
int size = 0, radius = 0;
CcCtrlPosition direction = CcCtrlPosition.None;
CcCtrlCorner corners = CcCtrlCorner.None;
stringValue.Split(Separator).ForEach(s =>
{
if (s.StartsWith(KeySize))
{
size = (int)IntConverter.ConvertFromString(context, culture, s.Substring(KeySize.Length));
}
else if (s.StartsWith(KeyDirection))
{
direction = (CcCtrlPosition)PositionConverter.ConvertFromString(context, culture, s.Substring(KeyDirection.Length));
}
else if (s.StartsWith(KeyRadius))
{
radius = (int)IntConverter.ConvertFromString(context, culture, s.Substring(KeyRadius.Length));
}
else if (s.StartsWith(KeyCorners))
{
corners = (CcCtrlCorner)CornerConverter.ConvertFromString(context, culture, s.Substring(KeyCorners.Length));
}
});
return(new CcBorder
{
Size = size,
OpenDirection = direction,
Radius = radius,
RadiusCorners = corners
});
}
return(base.ConvertFrom(context, culture, value));
}
/// <summary>
/// 画按钮的矩形
/// </summary>
/// <param name="graphics"></param>
/// <param name="rect">矩形区域</param>
/// <param name="fillBrush">填充画刷</param>
/// <param name="borderPen">边框画笔</param>
/// <param name="borderSize">边框大小</param>
/// <param name="radius">圆角半径</param>
/// <param name="borderOpen">边框开放的方向</param>
/// <param name="borderOpen">边框开放的方向</param>
/// <param name="openPen">开放画笔</param>
public static void DrawButtonRect(this Graphics graphics, Rectangle rect, Brush fillBrush
, Pen borderPen, int borderSize, int radius, CcCtrlCorner radiusCorners = CcCtrlCorner.All
, CcCtrlPosition borderOpen = CcCtrlPosition.None, Pen openPen = null)
{
if (null == graphics)
{
return;
}
if (radius > 0)
{
graphics.DrawButtonRoundRect(rect, fillBrush, borderPen, borderSize, radius, radiusCorners, borderOpen, openPen);
}
else
{
graphics.DrawButtonCornerRect(rect, fillBrush, borderPen, borderSize, borderOpen, openPen);
}
}
/// <summary>
/// 画按钮的圆角矩形
/// </summary>
/// <param name="graphics"></param>
/// <param name="rect">矩形区域</param>
/// <param name="fillBrush">填充画刷</param>
/// <param name="borderPen">边框画笔</param>
/// <param name="borderSize">边框大小</param>
/// <param name="radius">圆角半径</param>
/// <param name="radiusCorners">圆角数量</param>
/// <param name="borderOpen">边框开放的方向</param>
/// <param name="openPen">开放画笔</param>
public static void DrawButtonRoundRect(this Graphics graphics, Rectangle rect, Brush fillBrush
, Pen borderPen, int borderSize, int radius, CcCtrlCorner radiusCorners = CcCtrlCorner.All
, CcCtrlPosition borderOpen = CcCtrlPosition.None, Pen openPen = null)
{
if (null == graphics || radius <= 0)
{
return;
}
//抗锯齿
graphics.SmoothingMode = SmoothingMode.AntiAlias;
var drawBorder = (borderSize > 0 && borderPen != null);
var delta = Win32.SIZE_SYSTEM; //抗锯齿模式下，系统有1个像素的渐变
var drawRect = new Rectangle
{
X = rect.X,
Y = rect.Y,
Width = rect.Width - delta,
Height = rect.Height - delta
};
if (fillBrush != null)
{
if (drawBorder)
{
var offset = (int)Math.Floor(borderSize / 2.0F);
var fillRect = new Rectangle
{
X = rect.X + offset,
Y = rect.Y + offset,
Width = rect.Width - borderSize,
Height = rect.Height - borderSize
};
graphics.FillPath(fillBrush, fillRect.GetRoundedRectPath(radius, radiusCorners));
}
else
{
graphics.FillPath(fillBrush, drawRect.GetRoundedRectPath(radius, radiusCorners));
}
}
if (drawBorder)
{
graphics.DrawPath(borderPen, drawRect.GetRoundedRectPath(radius, radiusCorners));
graphics.DrawOpenLine(rect, fillBrush, borderSize, radius, borderOpen, openPen);
}
}
/// <summary>
/// 根据普通矩形得到圆角矩形的路径
/// </summary>
/// <param name="rect">原始矩形</param>
/// <param name="radius">半径</param>
/// <param name="corners">圆角的方向</param>
/// <returns>图形路径</returns>
public static GraphicsPath GetRoundedRectPath(this Rectangle rect, int radius, CcCtrlCorner corners = CcCtrlCorner.All)
{
var diameter = 2 * radius;
// 把圆角矩形分成八段直线、弧的组合，依次加到路径中
var path = new GraphicsPath();
if ((corners & CcCtrlCorner.TopLeft) == CcCtrlCorner.TopLeft)
{
//左上角
path.AddArc(rect.X, rect.Y, diameter, diameter, 180F, 90F);
}
else
{
//顶部直线（从左往右画）
path.AddLine(rect.X, rect.Y, rect.Right - diameter, rect.Y);
}
if ((corners & CcCtrlCorner.TopRight) == CcCtrlCorner.TopRight)
{
//右上角
path.AddArc(rect.Right - diameter, rect.Y, diameter, diameter, 270F, 90F);
}
else
{
//右边直线（从上往下画）
path.AddLine(rect.Right, rect.Y, rect.Right, rect.Bottom - diameter);
}
if ((corners & CcCtrlCorner.BottomRight) == CcCtrlCorner.BottomRight)
{
//右下角
path.AddArc(rect.Right - diameter, rect.Bottom - diameter, diameter, diameter, 0F, 90F);
}
else
{
//底部直线（从右往左画）
path.AddLine(rect.Right, rect.Bottom, rect.X + diameter, rect.Bottom);
}
if ((corners & CcCtrlCorner.BottomLeft) == CcCtrlCorner.BottomLeft)
{
//左下角
path.AddArc(rect.X, rect.Bottom - diameter, diameter, diameter, 90F, 90F);
}
else
{
//左边直线（从下往上）
path.AddLine(rect.X, rect.Bottom, rect.X, rect.Y + diameter);
}
path.CloseAllFigures();
return(path);
}
