/// <summary>
/// 画按钮的方角矩形
/// </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="borderOpen">边框开放的方向</param>
/// <param name="openPen">开放画笔</param>
public static void DrawButtonCornerRect(this Graphics graphics, Rectangle rect, Brush fillBrush,
Pen borderPen, int borderSize, CcCtrlPosition borderOpen = CcCtrlPosition.None, Pen openPen = null)
{
if (null == graphics)
{
return;
}
//不抗锯齿
graphics.SmoothingMode = SmoothingMode.None;
var drawBorder = (borderSize > 0 && borderPen != null);
var offset = (drawBorder && 1 == borderSize) ? Win32.SIZE_SYSTEM : 0;
var drawRect = new Rectangle
{
X = rect.X,
Y = rect.Y,
Width = rect.Width - offset,
Height = rect.Height - offset
};
if (fillBrush != null)
{
graphics.FillRectangle(fillBrush, drawRect);
}
if (drawBorder)
{
graphics.DrawRectangle(borderPen, drawRect);
graphics.DrawOpenLine(drawRect, fillBrush, borderSize, 0, borderOpen, openPen);
}
}
/// <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);
}
/// <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);
}
}
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>
/// 获取圆角的位置
/// </summary>
/// <param name="openPosition">边框开放的位置</param>
/// <returns></returns>
public static CcCtrlCorner GetCorners(CcCtrlPosition openPosition)
{
switch (openPosition)
{
case CcCtrlPosition.Left:
return(CcCtrlCorner.Right);
case CcCtrlPosition.Top:
return(CcCtrlCorner.Bottom);
case CcCtrlPosition.Right:
return(CcCtrlCorner.Left);
case CcCtrlPosition.Bottom:
return(CcCtrlCorner.Top);
case CcCtrlPosition.None:
default:
return(CcCtrlCorner.All);
}
}
/// <summary>
/// 获取开放的线条
/// </summary>
/// <param name="rect">原始矩形</param>
/// <param name="open">开放的方向</param>
/// <param name="borderSize">边框大小</param>
/// <param name="radius">圆角半径</param>
/// <returns>Item1：起始点；Item2：终结点</returns>
public static Tuple <Point, Point> GetOpenLine(this Rectangle rect, CcCtrlPosition open, int borderSize, int radius)
{
if (null == rect)
{
return(null);
}
var delta = (radius > 0) ? Win32.SIZE_SYSTEM : 0;
var leftX_H = rect.X + borderSize - (borderSize == 1 ? delta : 0);
var leftX_V = rect.X + borderSize / 2;
var rightX_H = rect.Right - borderSize - (borderSize == 1 ? 0 : delta);
var rightX_V = rect.Right - borderSize / 2 - delta;
var topY_H = rect.Y + borderSize / 2;
var topY_V = rect.Y + borderSize - (borderSize == 1 ? delta : 0);
var bottomY_H = rect.Bottom - borderSize / 2 - delta;
var bottomY_V = rect.Bottom - borderSize - (borderSize == 1 ? 0 : delta);
switch (open)
{
case CcCtrlPosition.Top:
return(new Tuple <Point, Point>(new Point(leftX_H, topY_H), new Point(rightX_H, topY_H)));
case CcCtrlPosition.Left:
return(new Tuple <Point, Point>(new Point(leftX_V, topY_V), new Point(leftX_V, bottomY_V)));
case CcCtrlPosition.Right:
return(new Tuple <Point, Point>(new Point(rightX_V, topY_V), new Point(rightX_V, bottomY_V)));
case CcCtrlPosition.Bottom:
return(new Tuple <Point, Point>(new Point(leftX_H, bottomY_H), new Point(rightX_H, bottomY_H)));
default:
return(null);
}
}
/// <summary>
/// 画开放边框的直线
/// </summary>
/// <param name="graphics"></param>
/// <param name="rect"></param>
/// <param name="fillBrush"></param>
/// <param name="borderSize"></param>
/// <param name="radius">圆角半径</param>
/// <param name="borderOpen"></param>
/// <param name="openPen"></param>
private static void DrawOpenLine(this Graphics graphics, Rectangle rect, Brush fillBrush, int borderSize, int radius, CcCtrlPosition borderOpen, Pen openPen = null)
{
var points = rect.GetOpenLine(borderOpen, borderSize, radius);
if (null == points)
{
return;
}
//画圆角时留一个像素给系统渐变
var offset = radius > 0 ? Win32.SIZE_SYSTEM : 0;
var newPen = (null == openPen);
if (newPen)
{
if (fillBrush != null)
{
openPen = new Pen(fillBrush, borderSize + offset);
}
else
{
openPen = new Pen(Color.White, borderSize + offset);
}
}
if (radius > 0)
{
//graphics.SmoothingMode = SmoothingMode.AntiAlias;
}
else
{
graphics.SmoothingMode = SmoothingMode.None;
}
graphics.DrawLine(openPen, points.Item1, points.Item2);
if (newPen)
{
openPen.Dispose();
}
}
