696 lines
28 KiB
C#
696 lines
28 KiB
C#
using System.Drawing;
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using System.Drawing.Drawing2D;
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#if TREEGX
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namespace DevComponents.Tree
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#elif DOTNETBAR
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namespace DevComponents.DotNetBar
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#endif
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{
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/// <summary>
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/// Summary description for Display.
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/// </summary>
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internal class DisplayHelp
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{
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private DisplayHelp()
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{
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}
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public static LinearGradientBrush CreateLinearGradientBrush(Rectangle r,Color color1, Color color2,float gradientAngle)
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{
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if(r.Width<=0)
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r.Width=1;
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if(r.Height<=0)
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r.Height=1;
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return new LinearGradientBrush(new Rectangle(r.X,r.Y-1,r.Width,r.Height+1),color1,color2,gradientAngle);
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}
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public static LinearGradientBrush CreateLinearGradientBrush(RectangleF r,Color color1, Color color2,float gradientAngle)
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{
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if(r.Width<=0)
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r.Width=1;
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if(r.Height<=0)
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r.Height=1;
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return new LinearGradientBrush(new RectangleF(r.X,r.Y-1,r.Width,r.Height+1),color1,color2,gradientAngle);
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}
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public static LinearGradientBrush CreateLinearGradientBrush(Rectangle r,Color color1, Color color2,float gradientAngle, bool isAngleScalable)
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{
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if(r.Width<=0)
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r.Width=1;
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if(r.Height<=0)
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r.Height=1;
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return new LinearGradientBrush(new Rectangle(r.X,r.Y-1,r.Width,r.Height+1),color1,color2,gradientAngle,isAngleScalable);
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}
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public static Rectangle GetDrawRectangle(Rectangle r)
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{
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r.Width--;
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r.Height--;
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return r;
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}
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public static Rectangle GetPathRectangle(Rectangle r)
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{
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//r.Width++;
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//r.Height++;
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return r;
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}
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public static void DrawRectangle(System.Drawing.Graphics g, Color color, int x, int y, int width, int height)
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{
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using (Pen pen = new Pen(color, 1))
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DrawRectangle(g, pen, x, y, width, height);
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}
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public static void DrawRectangle(System.Drawing.Graphics g, Color color, System.Drawing.Rectangle r)
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{
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DrawRectangle(g, color, r.X, r.Y, r.Width, r.Height);
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}
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public static void DrawRectangle(System.Drawing.Graphics g, System.Drawing.Pen pen, int x, int y, int width, int height)
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{
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// Fix for GDI issue
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width--;
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height--;
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g.DrawRectangle(pen,x,y,width,height);
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}
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public static void DrawRectangle(System.Drawing.Graphics g, System.Drawing.Pen pen, System.Drawing.Rectangle r)
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{
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DrawRectangle(g,pen,r.X,r.Y,r.Width,r.Height);
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}
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public static void DrawRoundedRectangle(System.Drawing.Graphics g, Color color, Rectangle bounds, int cornerSize)
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{
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if (!color.IsEmpty)
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{
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using (Pen pen = new Pen(color))
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DrawRoundedRectangle(g, pen, bounds.X, bounds.Y, bounds.Width, bounds.Height, cornerSize);
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}
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}
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public static void DrawRoundedRectangle(System.Drawing.Graphics g, Color color, int x, int y, int width, int height, int cornerSize)
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{
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if (!color.IsEmpty)
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{
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using (Pen pen = new Pen(color))
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DrawRoundedRectangle(g, pen, x, y, width, height, cornerSize);
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}
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}
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public static void DrawRoundedRectangle(System.Drawing.Graphics g, System.Drawing.Pen pen, Rectangle bounds, int cornerSize)
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{
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DrawRoundedRectangle(g, pen, bounds.X, bounds.Y, bounds.Width, bounds.Height, cornerSize);
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}
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public static void DrawRoundedRectangle(System.Drawing.Graphics g, System.Drawing.Pen pen, int x, int y, int width, int height, int cornerSize)
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{
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// Fix for GDI issue
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width--;
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height--;
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Rectangle r = new Rectangle(x, y, width, height);
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SmoothingMode sm = g.SmoothingMode;
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//g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
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using (GraphicsPath path = GetRoundedRectanglePath(r, cornerSize))
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{
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g.DrawPath(pen, path);
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}
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g.SmoothingMode = sm;
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}
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public static GraphicsPath GetRoundedRectanglePath(Rectangle r, int cornerSize)
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{
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GraphicsPath path = new GraphicsPath();
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ElementStyleDisplay.AddCornerArc(path, r, cornerSize, eCornerArc.TopLeft);
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ElementStyleDisplay.AddCornerArc(path, r, cornerSize, eCornerArc.TopRight);
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ElementStyleDisplay.AddCornerArc(path, r, cornerSize, eCornerArc.BottomRight);
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ElementStyleDisplay.AddCornerArc(path, r, cornerSize, eCornerArc.BottomLeft);
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path.CloseAllFigures();
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return path;
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}
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public static GraphicsPath GetRoundedRectanglePath(Rectangle clientRectangle, int cornerSize, eStyleBackgroundPathPart pathPart,
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eCornerType topLeftCornerType, eCornerType topRightCornerType, eCornerType bottomLeftCornerType, eCornerType bottomRightCornerType)
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{
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GraphicsPath path = new GraphicsPath();
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if (pathPart == eStyleBackgroundPathPart.TopHalf)
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clientRectangle.Height = clientRectangle.Height / 2;
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else if (pathPart == eStyleBackgroundPathPart.BottomHalf)
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{
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int h = clientRectangle.Height;
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clientRectangle.Height = clientRectangle.Height / 2;
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clientRectangle.Y += (h - clientRectangle.Height - 1);
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}
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eCornerType corner = topLeftCornerType;
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if (corner == eCornerType.Inherit)
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corner = eCornerType.Square;
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if (pathPart == eStyleBackgroundPathPart.BottomHalf)
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corner = eCornerType.Square;
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if (corner == eCornerType.Rounded)
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{
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ArcData ad = ElementStyleDisplay.GetCornerArc(clientRectangle, cornerSize, eCornerArc.TopLeft);
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path.AddArc(ad.X, ad.Y, ad.Width, ad.Height, ad.StartAngle, ad.SweepAngle);
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}
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else if (corner == eCornerType.Diagonal)
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{
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path.AddLine(clientRectangle.X, clientRectangle.Y + cornerSize, clientRectangle.X + cornerSize, clientRectangle.Y);
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}
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else
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{
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path.AddLine(clientRectangle.X, clientRectangle.Y + 2, clientRectangle.X, clientRectangle.Y);
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path.AddLine(clientRectangle.X, clientRectangle.Y, clientRectangle.X + 2, clientRectangle.Y);
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}
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corner = topRightCornerType;
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if (corner == eCornerType.Inherit)
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corner = eCornerType.Square;
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if (pathPart == eStyleBackgroundPathPart.BottomHalf)
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corner = eCornerType.Square;
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if (corner == eCornerType.Rounded)
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{
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ArcData ad = ElementStyleDisplay.GetCornerArc(clientRectangle, cornerSize, eCornerArc.TopRight);
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path.AddArc(ad.X, ad.Y, ad.Width, ad.Height, ad.StartAngle, ad.SweepAngle);
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}
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else if (corner == eCornerType.Diagonal)
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{
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path.AddLine(clientRectangle.Right - cornerSize - 1, clientRectangle.Y, clientRectangle.Right, clientRectangle.Y + cornerSize);
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}
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else
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{
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path.AddLine(clientRectangle.Right - 2, clientRectangle.Y, clientRectangle.Right, clientRectangle.Y);
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path.AddLine(clientRectangle.Right, clientRectangle.Y, clientRectangle.Right, clientRectangle.Y + 2);
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}
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corner = bottomRightCornerType;
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if (corner == eCornerType.Inherit)
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corner = eCornerType.Square;
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if (pathPart == eStyleBackgroundPathPart.TopHalf)
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corner = eCornerType.Square;
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if (corner == eCornerType.Rounded)
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{
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ArcData ad = ElementStyleDisplay.GetCornerArc(clientRectangle, cornerSize, eCornerArc.BottomRight);
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path.AddArc(ad.X, ad.Y, ad.Width, ad.Height, ad.StartAngle, ad.SweepAngle);
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}
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else if (corner == eCornerType.Diagonal)
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{
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path.AddLine(clientRectangle.Right, clientRectangle.Bottom - cornerSize - 1, clientRectangle.Right - cornerSize - 1, clientRectangle.Bottom);
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}
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else
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{
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path.AddLine(clientRectangle.Right, clientRectangle.Bottom - 2, clientRectangle.Right, clientRectangle.Bottom);
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path.AddLine(clientRectangle.Right, clientRectangle.Bottom, clientRectangle.Right - 2, clientRectangle.Bottom);
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}
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corner = bottomLeftCornerType;
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if (corner == eCornerType.Inherit)
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corner = eCornerType.Square;
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if (pathPart == eStyleBackgroundPathPart.TopHalf)
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corner = eCornerType.Square;
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if (corner == eCornerType.Rounded)
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{
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ArcData ad = ElementStyleDisplay.GetCornerArc(clientRectangle, cornerSize, eCornerArc.BottomLeft);
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path.AddArc(ad.X, ad.Y, ad.Width, ad.Height, ad.StartAngle, ad.SweepAngle);
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}
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else if (corner == eCornerType.Diagonal)
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{
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path.AddLine(clientRectangle.X + 2, clientRectangle.Bottom, clientRectangle.X, clientRectangle.Bottom - cornerSize - 1);
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}
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else
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{
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path.AddLine(clientRectangle.X + 2, clientRectangle.Bottom, clientRectangle.X, clientRectangle.Bottom);
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path.AddLine(clientRectangle.X, clientRectangle.Bottom, clientRectangle.X, clientRectangle.Bottom - 2);
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}
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path.CloseAllFigures();
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return path;
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}
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public static GraphicsPath GetBorderPath(Rectangle clientRectangle, int cornerSize, eStyleBackgroundPathPart pathPart,
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eCornerType topLeftCornerType, eCornerType topRightCornerType, eCornerType bottomLeftCornerType, eCornerType bottomRightCornerType,
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bool leftBorder, bool rightBorder, bool topBorder, bool bottomBorder)
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{
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GraphicsPath path = new GraphicsPath();
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if (pathPart == eStyleBackgroundPathPart.TopHalf)
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clientRectangle.Height = clientRectangle.Height / 2;
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else if (pathPart == eStyleBackgroundPathPart.BottomHalf)
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{
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int h = clientRectangle.Height;
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clientRectangle.Height = clientRectangle.Height / 2;
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clientRectangle.Y += (h - clientRectangle.Height - 1);
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}
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eCornerType corner = topLeftCornerType;
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if (corner == eCornerType.Inherit)
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corner = eCornerType.Square;
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if (pathPart == eStyleBackgroundPathPart.BottomHalf)
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corner = eCornerType.Square;
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if (leftBorder)
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{
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path.AddLine(clientRectangle.X, clientRectangle.Bottom -
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(bottomBorder && (bottomLeftCornerType == eCornerType.Diagonal || bottomLeftCornerType == eCornerType.Rounded) ? cornerSize : 0),
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clientRectangle.X, clientRectangle.Y +
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(topBorder && (topLeftCornerType == eCornerType.Diagonal || topLeftCornerType == eCornerType.Rounded) ? cornerSize : 0));
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}
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if (leftBorder && topBorder)
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{
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if (corner == eCornerType.Rounded)
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{
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ArcData ad = ElementStyleDisplay.GetCornerArc(clientRectangle, cornerSize, eCornerArc.TopLeft);
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path.AddArc(ad.X, ad.Y, ad.Width, ad.Height, ad.StartAngle, ad.SweepAngle);
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}
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else if (corner == eCornerType.Diagonal)
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{
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path.AddLine(clientRectangle.X, clientRectangle.Y + cornerSize, clientRectangle.X + cornerSize, clientRectangle.Y);
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}
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}
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if (topBorder)
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{
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path.AddLine(clientRectangle.X +
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((topLeftCornerType == eCornerType.Diagonal || topLeftCornerType == eCornerType.Rounded) ? cornerSize : 0)
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, clientRectangle.Y, clientRectangle.Right -
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(rightBorder && (topRightCornerType == eCornerType.Diagonal || topRightCornerType == eCornerType.Rounded) ? cornerSize : 0),
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clientRectangle.Y);
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}
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corner = topRightCornerType;
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if (corner == eCornerType.Inherit)
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corner = eCornerType.Square;
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if (pathPart == eStyleBackgroundPathPart.BottomHalf)
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corner = eCornerType.Square;
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if (topBorder && rightBorder)
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{
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if (corner == eCornerType.Rounded)
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{
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ArcData ad = ElementStyleDisplay.GetCornerArc(clientRectangle, cornerSize, eCornerArc.TopRight);
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path.AddArc(ad.X, ad.Y, ad.Width, ad.Height, ad.StartAngle, ad.SweepAngle);
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}
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else if (corner == eCornerType.Diagonal)
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{
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path.AddLine(clientRectangle.Right - cornerSize - 1, clientRectangle.Y, clientRectangle.Right, clientRectangle.Y + cornerSize);
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}
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}
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if (rightBorder)
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{
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path.AddLine(clientRectangle.Right, clientRectangle.Y +
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((topRightCornerType == eCornerType.Diagonal || topRightCornerType == eCornerType.Rounded) ? cornerSize : 0),
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clientRectangle.Right, clientRectangle.Bottom -
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(bottomBorder && (bottomRightCornerType == eCornerType.Diagonal || bottomRightCornerType == eCornerType.Rounded) ? cornerSize : 0));
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}
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corner = bottomRightCornerType;
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if (corner == eCornerType.Inherit)
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corner = eCornerType.Square;
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if (pathPart == eStyleBackgroundPathPart.TopHalf)
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corner = eCornerType.Square;
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if (corner == eCornerType.Rounded)
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{
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ArcData ad = ElementStyleDisplay.GetCornerArc(clientRectangle, cornerSize, eCornerArc.BottomRight);
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path.AddArc(ad.X, ad.Y, ad.Width, ad.Height, ad.StartAngle, ad.SweepAngle);
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}
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else if (corner == eCornerType.Diagonal)
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{
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path.AddLine(clientRectangle.Right, clientRectangle.Bottom - cornerSize - 1, clientRectangle.Right - cornerSize - 1, clientRectangle.Bottom);
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}
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if (bottomBorder)
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{
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path.AddLine(clientRectangle.Right -
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((bottomRightCornerType == eCornerType.Diagonal || bottomRightCornerType == eCornerType.Rounded) ? cornerSize : 0),
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clientRectangle.Bottom,
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clientRectangle.X +
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((bottomLeftCornerType == eCornerType.Diagonal || bottomLeftCornerType == eCornerType.Rounded) ? cornerSize : 0),
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clientRectangle.Bottom);
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}
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corner = bottomLeftCornerType;
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if (corner == eCornerType.Inherit)
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corner = eCornerType.Square;
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if (pathPart == eStyleBackgroundPathPart.TopHalf)
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corner = eCornerType.Square;
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if (corner == eCornerType.Rounded)
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{
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ArcData ad = ElementStyleDisplay.GetCornerArc(clientRectangle, cornerSize, eCornerArc.BottomLeft);
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path.AddArc(ad.X, ad.Y, ad.Width, ad.Height, ad.StartAngle, ad.SweepAngle);
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}
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else if (corner == eCornerType.Diagonal)
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{
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path.AddLine(clientRectangle.X + 2, clientRectangle.Bottom, clientRectangle.X, clientRectangle.Bottom - cornerSize - 1);
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}
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return path;
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}
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public static void FillRoundedRectangle(Graphics g, Rectangle bounds, int cornerSize, Color color1, Color color2, int gradientAngle)
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{
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if (color2.IsEmpty)
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{
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if (!color1.IsEmpty)
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{
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using (SolidBrush brush = new SolidBrush(color1))
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FillRoundedRectangle(g, brush, bounds, cornerSize);
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}
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}
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else
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{
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using (LinearGradientBrush brush = CreateLinearGradientBrush(bounds, color1, color2, gradientAngle))
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FillRoundedRectangle(g, brush, bounds, cornerSize);
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}
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}
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public static void FillRoundedRectangle(Graphics g, Rectangle bounds, int cornerSize, Color color1, Color color2)
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{
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FillRoundedRectangle(g, bounds, cornerSize, color1, color2, 90);
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}
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public static void FillRoundedRectangle(Graphics g, Rectangle bounds, int cornerSize, Color color1)
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{
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using (SolidBrush brush = new SolidBrush(color1))
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FillRoundedRectangle(g, brush, bounds, cornerSize);
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}
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public static void FillRoundedRectangle(Graphics g, Brush brush, Rectangle bounds, int cornerSize)
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{
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// Fix for GDI issue
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bounds.Width--;
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bounds.Height--;
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using (GraphicsPath path = GetRoundedRectanglePath(bounds, cornerSize))
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{
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g.FillPath(brush, path);
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}
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}
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public static void FillRectangle(Graphics g, Rectangle bounds, Color color1)
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{
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FillRectangle(g, bounds, color1, Color.Empty, 90);
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}
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public static void FillRectangle(Graphics g, Rectangle bounds, Color color1, Color color2)
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{
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FillRectangle(g, bounds, color1, color2, 90);
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}
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#if DOTNETBAR
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public static void FillRectangle(Graphics g, Rectangle r, Rendering.LinearGradientColorTable table)
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{
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FillRectangle(g, r, table.Start, table.End, table.GradientAngle);
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}
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#endif
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public static void FillRectangle(Graphics g, Rectangle r, Color color1, Color color2, int gradientAngle)
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{
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if (r.Width == 0 || r.Height == 0)
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return;
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if (color2.IsEmpty)
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{
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if (!color1.IsEmpty)
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{
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using (SolidBrush brush = new SolidBrush(color1))
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g.FillRectangle(brush, r);
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}
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}
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else
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{
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using (LinearGradientBrush brush = CreateLinearGradientBrush(r, color1, color2, gradientAngle))
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g.FillRectangle(brush, r);
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}
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}
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public static void FillRectangle(Graphics g, Rectangle r, Color color1, Color color2, int gradientAngle, float[] factors, float[] positions)
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{
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if (r.Width == 0 || r.Height == 0)
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return;
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if (color2.IsEmpty)
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{
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if (!color1.IsEmpty)
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{
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using (SolidBrush brush = new SolidBrush(color1))
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g.FillRectangle(brush, r);
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}
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}
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else
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{
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using (LinearGradientBrush brush = CreateLinearGradientBrush(r, color1, color2, gradientAngle))
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{
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Blend blend = new Blend(factors.Length);
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blend.Factors = factors;
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blend.Positions = positions;
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brush.Blend = blend;
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g.FillRectangle(brush, r);
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}
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}
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}
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public static void FillPath(Graphics g, GraphicsPath path, Color color1, Color color2)
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{
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FillPath(g, path, color1, color2, 90);
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}
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#if DOTNETBAR
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public static void FillPath(Graphics g, GraphicsPath path, Rendering.LinearGradientColorTable table)
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{
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FillPath(g, path, table.Start, table.End, table.GradientAngle);
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}
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#endif
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public static void FillPath(Graphics g, GraphicsPath path, Color color1, Color color2, int gradientAngle)
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{
|
|
if (color2.IsEmpty)
|
|
{
|
|
if (!color1.IsEmpty)
|
|
{
|
|
using (SolidBrush brush = new SolidBrush(color1))
|
|
g.FillPath(brush, path);
|
|
}
|
|
}
|
|
else if(!color1.IsEmpty)
|
|
{
|
|
using (LinearGradientBrush brush = CreateLinearGradientBrush(path.GetBounds(), color1, color2, gradientAngle))
|
|
g.FillPath(brush, path);
|
|
}
|
|
}
|
|
|
|
//public static void DrawGradientLine(Graphics g, Point start, Point end, Color color1, Color color2, int gradientAngle, int penWidth)
|
|
//{
|
|
// if (color1.IsEmpty || penWidth <= 0 || start == end)
|
|
// return;
|
|
|
|
// using (GraphicsPath path = new GraphicsPath())
|
|
// {
|
|
// start.Offset(-1, -1);
|
|
// end.Offset(-1, -1);
|
|
// path.AddLine(start, end);
|
|
// using (Pen pen = new Pen(Color.White, penWidth))
|
|
// path.Widen(pen);
|
|
// Rectangle r = Rectangle.Ceiling(path.GetBounds());
|
|
// r.Inflate(1, 1);
|
|
// using (LinearGradientBrush brush = CreateLinearGradientBrush(r, color1, color2, gradientAngle))
|
|
// g.FillPath(brush, path);
|
|
// }
|
|
//}
|
|
|
|
public static void DrawLine(Graphics g, Point start, Point end, Color color, int penWidth)
|
|
{
|
|
if (!color.IsEmpty)
|
|
{
|
|
using (Pen pen = new Pen(color, penWidth))
|
|
g.DrawLine(pen, start, end);
|
|
}
|
|
}
|
|
|
|
public static void DrawLine(Graphics g, int x1, int y1, int x2, int y2, Color color, int penWidth)
|
|
{
|
|
if (!color.IsEmpty)
|
|
{
|
|
using (Pen pen = new Pen(color, penWidth))
|
|
g.DrawLine(pen, x1, y1, x2, y2);
|
|
}
|
|
}
|
|
|
|
#if DOTNETBAR
|
|
public static void DrawGradientRectangle(Graphics g, Rectangle bounds, Rendering.LinearGradientColorTable table, int penWidth)
|
|
{
|
|
DrawGradientRectangle(g, bounds, table.Start, table.End, table.GradientAngle, penWidth);
|
|
}
|
|
#endif
|
|
|
|
public static void DrawGradientRectangle(Graphics g, Rectangle bounds, Color color1, Color color2, int gradientAngle, int penWidth)
|
|
{
|
|
if (color1.IsEmpty || bounds.Width <= 0 || bounds.Height <= 0 || penWidth <= 0)
|
|
return;
|
|
|
|
Rectangle r = bounds;
|
|
// Workaround for GDI+ bug
|
|
r.Width--;
|
|
r.Height--;
|
|
|
|
using (GraphicsPath path = new GraphicsPath())
|
|
{
|
|
path.AddRectangle(r);
|
|
|
|
using (Pen pen = new Pen(color1, penWidth))
|
|
path.Widen(pen);
|
|
|
|
if (color2.IsEmpty)
|
|
{
|
|
if (!color1.IsEmpty)
|
|
{
|
|
using (SolidBrush brush = new SolidBrush(color1))
|
|
g.FillPath(brush, path);
|
|
}
|
|
}
|
|
else if (!color1.IsEmpty)
|
|
{
|
|
using (LinearGradientBrush brush = new LinearGradientBrush(bounds, color1, color2, gradientAngle))
|
|
g.FillPath(brush, path);
|
|
}
|
|
}
|
|
}
|
|
|
|
#if DOTNETBAR
|
|
public static void DrawRoundGradientRectangle(Graphics g, Rectangle bounds, Rendering.LinearGradientColorTable table, int penWidth, int roundCornerSize)
|
|
{
|
|
DrawRoundGradientRectangle(g, bounds, table.Start, table.End, table.GradientAngle, penWidth, roundCornerSize);
|
|
}
|
|
#endif
|
|
|
|
public static void DrawRoundGradientRectangle(Graphics g, Rectangle bounds, Color color1, Color color2, int gradientAngle, int penWidth, int roundCornerSize)
|
|
{
|
|
if (color1.IsEmpty && color2.IsEmpty || bounds.Width <= 0 || bounds.Height <= 0 || roundCornerSize <= 0 || penWidth <= 0)
|
|
return;
|
|
|
|
Rectangle r = bounds;
|
|
// Workaround for GDI+ bug
|
|
r.Width--;
|
|
r.Height--;
|
|
|
|
using (GraphicsPath roundPath = GetRoundedRectanglePath(r, roundCornerSize))
|
|
{
|
|
using (Pen pen = new Pen(color1, penWidth))
|
|
roundPath.Widen(pen);
|
|
|
|
if (color2.IsEmpty)
|
|
{
|
|
using (SolidBrush brush = new SolidBrush(color1))
|
|
g.FillPath(brush, roundPath);
|
|
}
|
|
else if(!color1.IsEmpty)
|
|
{
|
|
using (LinearGradientBrush brush = new LinearGradientBrush(bounds, color1, color2, gradientAngle))
|
|
g.FillPath(brush, roundPath);
|
|
}
|
|
}
|
|
}
|
|
|
|
#if DOTNETBAR
|
|
public static void DrawGradientPathBorder(Graphics g, GraphicsPath path, Rendering.LinearGradientColorTable table, int penWidth)
|
|
{
|
|
DrawGradientPathBorder(g, path, table.Start, table.End, table.GradientAngle, penWidth);
|
|
}
|
|
#endif
|
|
|
|
public static void DrawGradientPathBorder(Graphics g, GraphicsPath path, Color color1, Color color2, int gradientAngle, int penWidth)
|
|
{
|
|
using (Pen pen = new Pen(color1, penWidth))
|
|
path.Widen(pen);
|
|
|
|
Rectangle r = Rectangle.Ceiling(path.GetBounds());
|
|
r.Inflate(1, 1);
|
|
|
|
if (color2.IsEmpty)
|
|
{
|
|
if (!color1.IsEmpty)
|
|
{
|
|
using (SolidBrush brush = new SolidBrush(color1))
|
|
g.FillPath(brush, path);
|
|
}
|
|
}
|
|
else if(!color1.IsEmpty)
|
|
{
|
|
using (LinearGradientBrush brush = new LinearGradientBrush(r, color1, color2, gradientAngle))
|
|
g.FillPath(brush, path);
|
|
}
|
|
}
|
|
#if DOTNETBAR
|
|
public static void DrawGradientLine(Graphics g, Point start, Point end, Rendering.LinearGradientColorTable table, int penWidth)
|
|
{
|
|
DrawGradientLine(g, start, end, table.Start, table.End, table.GradientAngle, penWidth);
|
|
}
|
|
#endif
|
|
public static void DrawGradientLine(Graphics g, Point start, Point end, Color color1, Color color2, int gradientAngle, int penWidth)
|
|
{
|
|
if (color2.IsEmpty)
|
|
{
|
|
if (!color1.IsEmpty)
|
|
{
|
|
using (Pen pen = new Pen(color1, penWidth))
|
|
g.DrawLine(pen, start, end);
|
|
}
|
|
}
|
|
else if (!color1.IsEmpty)
|
|
{
|
|
using (GraphicsPath path = new GraphicsPath())
|
|
{
|
|
start.Offset(-1, -1);
|
|
end.Offset(-1, -1);
|
|
path.AddLine(start, end);
|
|
using (Pen pen = new Pen(color1, penWidth))
|
|
path.Widen(pen);
|
|
Rectangle r = Rectangle.Ceiling(path.GetBounds());
|
|
r.Inflate(1, 1);
|
|
using (LinearGradientBrush brush = DisplayHelp.CreateLinearGradientBrush(r, color1, color2, gradientAngle))
|
|
g.FillPath(brush, path);
|
|
}
|
|
}
|
|
}
|
|
|
|
public static void DrawGradientLine(Graphics g, Point start, Point end, Color color1, Color color2, int gradientAngle, int penWidth, float[] factors, float[] positions)
|
|
{
|
|
if (color2.IsEmpty)
|
|
{
|
|
if (!color1.IsEmpty)
|
|
{
|
|
using (Pen pen = new Pen(color1, penWidth))
|
|
g.DrawLine(pen, start, end);
|
|
}
|
|
}
|
|
else if (!color1.IsEmpty)
|
|
{
|
|
using (GraphicsPath path = new GraphicsPath())
|
|
{
|
|
start.Offset(-1, -1);
|
|
end.Offset(-1, -1);
|
|
path.AddLine(start, end);
|
|
using (Pen pen = new Pen(color1, penWidth))
|
|
path.Widen(pen);
|
|
Rectangle r = Rectangle.Ceiling(path.GetBounds());
|
|
r.Inflate(1, 1);
|
|
using (LinearGradientBrush brush = DisplayHelp.CreateLinearGradientBrush(r, color1, color2, gradientAngle))
|
|
{
|
|
Blend blend = new Blend(factors.Length);
|
|
blend.Factors = factors;
|
|
blend.Positions = positions;
|
|
brush.Blend = blend;
|
|
g.FillPath(brush, path);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|