C# Drawing2D.GraphicsPath类代码示例

 // 圆角代码
 public void Round(System.Drawing.Region region)
 {
     // -----------------------------------------------------------------------------------------------
     // 已经是.net提供给我们的最容易的改窗体的属性了(以前要自己调API)
     System.Drawing.Drawing2D.GraphicsPath oPath = new System.Drawing.Drawing2D.GraphicsPath();
     int x = 0;
     int y = 0;
     int thisWidth = this.Width;
     int thisHeight = this.Height;
     int angle = _Radius;
     if (angle > 0)
     {
         System.Drawing.Graphics g = CreateGraphics();
         oPath.AddArc(x, y, angle, angle, 180, 90); // 左上角
         oPath.AddArc(thisWidth - angle, y, angle, angle, 270, 90); // 右上角
         oPath.AddArc(thisWidth - angle, thisHeight - angle, angle, angle, 0, 90); // 右下角
         oPath.AddArc(x, thisHeight - angle, angle, angle, 90, 90); // 左下角
         oPath.CloseAllFigures();
         Region = new System.Drawing.Region(oPath);
     }
     // -----------------------------------------------------------------------------------------------
     else
     {
         oPath.AddLine(x + angle, y, thisWidth - angle, y); // 顶端
         oPath.AddLine(thisWidth, y + angle, thisWidth, thisHeight - angle); // 右边
         oPath.AddLine(thisWidth - angle, thisHeight, x + angle, thisHeight); // 底边
         oPath.AddLine(x, y + angle, x, thisHeight - angle); // 左边
         oPath.CloseAllFigures();
         Region = new System.Drawing.Region(oPath);
     }
 }

        public BBControl(int X, int Y, int dx, int dy)
        {
            InitializeComponent();
            this.Location = new Point(X, Y);
            Random rannd = new Random();
            this.dx = dx;
            this.dy = dy;
            while (dy == 0)
            {
                this.dy = rannd.Next(-50, 50);
            }
            while (dx == 0)
            {
                this.dx = rannd.Next(-50, 50);
            }
            Color color = Color.FromArgb(rannd.Next(255), rannd.Next(255), rannd.Next(255));
            while (color == Color.White)
            {
                color = Color.FromArgb(rannd.Next(255), rannd.Next(255), rannd.Next(255));
            }
            this.BackColor = color;
            this.Width = 2 * rannd.Next(2, 25);
            this.Height = this.Width;

            System.Drawing.Drawing2D.GraphicsPath Button_Path = new System.Drawing.Drawing2D.GraphicsPath();

            Button_Path.AddEllipse(0, 0, this.Width, this.Height);

            Region Button_Region = new Region(Button_Path);

            this.Region = Button_Region;

            thread = new Thread(DoWork);
            thread.Start();
        }

        private void DrawFilledPath(SeriesBase series, System.Drawing.Pen pen,System.Drawing.Brush brush)
        {
            var path = new System.Drawing.Drawing2D.GraphicsPath();

            if (series is AreaSeries)
            {
                path.StartFigure();
                AreaSeries areaSeries = series as AreaSeries;
                var points = areaSeries.AreaPoints;
                var pointCount = areaSeries.AreaPoints.Count;
                for (int i = 0; i < pointCount - 1; i++)
                {
                    System.Drawing.PointF startPoint = points[i].AsDrawingPointF();
                    System.Drawing.PointF endPoint = points[i + 1].AsDrawingPointF();
                    path.AddLine(startPoint, endPoint);
                }

                path.CloseAllFigures();

                switch (RenderingMode)
                {
                    case RenderingMode.GDIRendering:
                        GDIGraphics.FillPath(brush, path);
                        break;
                    case RenderingMode.Default:
                        break;
                    case RenderingMode.WritableBitmap:
                        WritableBitmapGraphics.FillPath(brush, path);
                        break;
                    default:
                        break;
                }
            }
        }

        /// <summary>
        /// Renders a label to the map.
        /// </summary>
        /// <param name="g">Graphics reference</param>
        /// <param name="LabelPoint">Label placement</param>
        /// <param name="Offset">Offset of label in screen coordinates</param>
        /// <param name="font">Font used for rendering</param>
        /// <param name="forecolor">Font forecolor</param>
        /// <param name="backcolor">Background color</param>
        /// <param name="halo">Color of halo</param>
        /// <param name="rotation">Text rotation in degrees</param>
        /// <param name="text">Text to render</param>
        /// <param name="map">Map reference</param>
        public static void DrawLabel(System.Drawing.Graphics g, System.Drawing.PointF LabelPoint, System.Drawing.PointF Offset, System.Drawing.Font font, System.Drawing.Color forecolor, System.Drawing.Brush backcolor, System.Drawing.Pen halo, float rotation, string text, SharpMap.Map map)
        {
            System.Drawing.SizeF fontSize = g.MeasureString(text, font); //Calculate the size of the text
            LabelPoint.X += Offset.X; LabelPoint.Y += Offset.Y; //add label offset
            if (rotation != 0 && rotation != float.NaN)
            {
                g.TranslateTransform(LabelPoint.X, LabelPoint.Y);
                g.RotateTransform(rotation);
                g.TranslateTransform(-fontSize.Width / 2, -fontSize.Height / 2);
                if (backcolor != null && backcolor != System.Drawing.Brushes.Transparent)
                    g.FillRectangle(backcolor, 0, 0, fontSize.Width * 0.74f + 1f, fontSize.Height * 0.74f);
                System.Drawing.Drawing2D.GraphicsPath path = new System.Drawing.Drawing2D.GraphicsPath();
                path.AddString(text, font.FontFamily, (int)font.Style, font.Size, new System.Drawing.Point(0, 0), null);
                if (halo != null)
                    g.DrawPath(halo, path);
                g.FillPath(new System.Drawing.SolidBrush(forecolor), path);
                //g.DrawString(text, font, new System.Drawing.SolidBrush(forecolor), 0, 0);
                g.Transform = map.MapTransform;
            }
            else
            {
                if (backcolor != null && backcolor != System.Drawing.Brushes.Transparent)
                    g.FillRectangle(backcolor, LabelPoint.X, LabelPoint.Y, fontSize.Width * 0.74f + 1, fontSize.Height * 0.74f);

                System.Drawing.Drawing2D.GraphicsPath path = new System.Drawing.Drawing2D.GraphicsPath();

                path.AddString(text, font.FontFamily, (int)font.Style, font.Size, LabelPoint, null);
                if (halo != null)
                    g.DrawPath(halo, path);
                g.FillPath(new System.Drawing.SolidBrush(forecolor), path);
                //g.DrawString(text, font, new System.Drawing.SolidBrush(forecolor), LabelPoint.X, LabelPoint.Y);
            }
        }

 //Chnage Facing Direction CFD
 private void btnCFD_Paint(object sender, PaintEventArgs e)
 {
     System.Drawing.Drawing2D.GraphicsPath myGraphicsPath = new System.Drawing.Drawing2D.GraphicsPath();
        myGraphicsPath.AddEllipse(new Rectangle(0, 0, 100, 100));
        btnCFD.Size = new System.Drawing.Size(100, 100);
        btnCFD.Region = new Region(myGraphicsPath);
 }

        public Form1(String ime, PocetnaForma pf)
        {
            InitializeComponent();
            igracIme = ime;
            this.igraci = pf.igraci;
            fruits = new List<Fruit>();
            toolStripStatusLabel1.Text = "";
            this.DoubleBuffered = true;
            selected = false;
            pf = new PocetnaForma();
            this.pf = pf;
            i1 = new Igrac(igracIme);

            timer1.Start();
            timer2.Start();

               //za kopceto  da bide okruglo i bez  border
               System.Drawing.Drawing2D.GraphicsPath ag = new System.Drawing.Drawing2D.GraphicsPath();
               ag.AddArc(0, 0, button1.Width, button1.Height, 0, 360);
               button1.Region = new Region(ag);
               button1.TabStop = false;
               button1.FlatStyle = FlatStyle.Flat;
               button1.FlatAppearance.BorderSize = 0;

              //za play kopceto
               System.Drawing.Drawing2D.GraphicsPath ag1 = new System.Drawing.Drawing2D.GraphicsPath();
               ag1.AddArc(0, 0, button2.Width, button2.Height, 0, 360);
               button2.Region = new Region(ag1);
               button2.TabStop = false;
               button2.FlatStyle = FlatStyle.Flat;
               button2.FlatAppearance.BorderSize = 0;
        }

        protected override void WndProc(ref Message m)
        {
            base.WndProc(ref m);

            switch (m.Msg)
            {
                case 0xf:
                    Graphics g = this.CreateGraphics();
                    g.FillRectangle(BorderBrush, this.ClientRectangle);

                    //Create the path for the arrow
                    System.Drawing.Drawing2D.GraphicsPath pth = new System.Drawing.Drawing2D.GraphicsPath();
                    PointF TopLeft = new PointF(this.Width - 13, (this.Height - 5) / 2);
                    PointF TopRight = new PointF(this.Width - 6, (this.Height - 5) / 2);
                    PointF Bottom = new PointF(this.Width - 9, (this.Height + 2) / 2);
                    pth.AddLine(TopLeft, TopRight);
                    pth.AddLine(TopRight, Bottom);

                    g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;

                    //Draw the arrow
                    g.FillPath(new SolidBrush(Color.White), pth);

                    break;
                default:
                    break;
            }
        }

        /// <summary>
        /// 绘制圆角
        /// </summary>
        /// <param name="g"></param>
        /// <param name="p"></param>
        /// <param name="X"></param>
        /// <param name="Y"></param>
        /// <param name="width"></param>
        /// <param name="height"></param>
        /// <param name="radius"></param>
        public static void DrawRoundRect(Graphics g, Pen p, Brush brush,float X, float Y, float width, float height, float radius)
        {
            System.Drawing.Drawing2D.GraphicsPath gp = new System.Drawing.Drawing2D.GraphicsPath();

            gp.AddLine(X + radius, Y, X + width - (radius * 2), Y);

            gp.AddArc(X + width - (radius * 2), Y, radius * 2, radius * 2, 270, 90);

            gp.AddLine(X + width, Y + radius, X + width, Y + height - (radius * 2));

            gp.AddArc(X + width - (radius * 2), Y + height - (radius * 2), radius * 2, radius * 2, 0, 90);

            gp.AddLine(X + width - (radius * 2), Y + height, X + radius, Y + height);

            gp.AddArc(X, Y + height - (radius * 2), radius * 2, radius * 2, 90, 90);

            gp.AddLine(X, Y + height - (radius * 2), X, Y + radius);

            gp.AddArc(X, Y, radius * 2, radius * 2, 180, 90);

            gp.CloseFigure();

            g.DrawPath(p, gp);

            g.FillPath(brush, gp);

            gp.Dispose();
        }

        /// <summary>
        /// Draw curves on graphics with transform and given pen
        /// </summary>
        static void DrawCurves(
            Graphics graphics,
            List<PointF[]> curves,
            System.Drawing.Drawing2D.Matrix transform,
            Pen pen)
        {
            foreach( PointF[] curve in curves )
              {
            System.Drawing.Drawing2D.GraphicsPath gPath = new System.Drawing.Drawing2D.GraphicsPath();
            if( curve.Length == 0 )
            {
              break;
            }
            if( curve.Length == 1 )
            {
              gPath.AddArc( new RectangleF( curve[0], new SizeF( 0.5f, 0.5f ) ), 0.0f, (float) Math.PI );
            }
            else
            {
              gPath.AddLines( curve );
            }
            if( transform != null )
              gPath.Transform( transform );

            graphics.DrawPath( pen, gPath );
              }
        }

        public frmLogin()
        {
            InitializeComponent();

            foreach (Button btn in this.Controls.OfType<Button>())
            {//this will controll all button inside form
                btn.FlatStyle = FlatStyle.Standard;
                btn.ForeColor = Color.Black;
                btn.BackColor = Color.White;
                
            }
            foreach (TextBox txtbox in this.Controls.OfType<TextBox>())
            {//this will controll all textbox inside form
                txtbox.BorderStyle = BorderStyle.None;
                
            }

            //background
            this.BackgroundImage = Properties.Resources.bg;
            this.BackgroundImageLayout = ImageLayout.Stretch;
            System.Drawing.Drawing2D.GraphicsPath gp = new System.Drawing.Drawing2D.GraphicsPath();
            gp.AddEllipse(0, 0, pictureBox1.Width - 3, pictureBox1.Height - 3);
            Region rg = new Region(gp);
            pictureBox1.Region = rg;
        }

        /// <summary>
        /// Repaints the form with cool background and stuff
        /// </summary>
        /// <param name="graph">The graphics object to paint to, the element will be drawn to 0,0</param>
        override public void Paint(Graphics graph)
        {
            //Draws Rectangular Shapes
            if (Shape == ModelShapes.Arrow)
            {
                _arrowPath = new System.Drawing.Drawing2D.GraphicsPath();

                //Draws the basic shape
                Pen arrowPen;
                if (Highlight < 1)
                    arrowPen = new Pen(Color.Cyan, 3F);
                else
                    arrowPen = new Pen(Color.Black, 3F);

                //Draws the curved arrow
                Point[] lineArray = new Point[4];
                lineArray[0] = new Point(_startPoint.X, _startPoint.Y);
                lineArray[1] = new Point(_startPoint.X - ((_startPoint.X - _stopPoint.X) / 3), _startPoint.Y);
                lineArray[2] = new Point(_stopPoint.X - ((_stopPoint.X - _startPoint.X) / 3), _stopPoint.Y);
                lineArray[3] = new Point(_stopPoint.X, _stopPoint.Y);
                graph.DrawBeziers(arrowPen, lineArray);
                _arrowPath.AddBeziers(lineArray);
                _arrowPath.Flatten();
 
                //Draws the arrow head
                Point[] arrowArray = new Point[3];
                arrowArray[0] = _stopPoint;
                arrowArray[1] = new Point(_stopPoint.X - (5 * Math.Sign(_stopPoint.X - _startPoint.X)),_stopPoint.Y - 2);
                arrowArray[2] = new Point(_stopPoint.X - (5 * Math.Sign(_stopPoint.X - _startPoint.X)), _stopPoint.Y + 2);
                graph.DrawPolygon(arrowPen,arrowArray);

                //Garbage collection
                arrowPen.Dispose();
            }
        }

 private void Form1_Load(object sender, EventArgs e)
 {
     // Cut the form
     System.Drawing.Drawing2D.GraphicsPath myPath = new System.Drawing.Drawing2D.GraphicsPath();
     myPath.AddPolygon(new Point[] { new Point(0, 0), new Point(0, this.Height), new Point(this.Width, 0) });
     Region myRegion = new Region(myPath); this.Region = myRegion;
 }

        public Form1()
        {
            InitializeComponent();
            saveLogs("InitializeComponent");
            cookies = ReadCookiesFromDisk("cookies.dat");

            if ((!check()) && (Properties.Settings.Default.email != "") && (Properties.Settings.Default.password != ""))
            {
                if (!auth())
                    resultLabel.Text = "Error authentication";
            }

            Microsoft.Win32.RegistryKey readKey = Microsoft.Win32.Registry.LocalMachine.OpenSubKey("SOFTWARE\\ETS2MP");
            if (readKey != null)
            {
                regInstallLocation  = (string)readKey.GetValue("InstallLocation");
                regInstallDir       = (string)readKey.GetValue("InstallDir");
            }
            else
            {
                saveLogs("Game not found!");
            }

            System.Drawing.Drawing2D.GraphicsPath Button_Path = new System.Drawing.Drawing2D.GraphicsPath();
            Button_Path.AddEllipse(0, 0, btnPlay.Width, btnPlay.Height);
            System.Drawing.Region Button_Region = new System.Drawing.Region(Button_Path);
            this.btnPlay.Region = Button_Region;
        }

            private System.Drawing.Drawing2D.GraphicsPath GetPath(int index)
            {
                System.Drawing.Drawing2D.GraphicsPath path = new System.Drawing.Drawing2D.GraphicsPath();
                path.Reset();

                Rectangle rect = this.GetTabRect(index);

                if (index == 0)
                {
                    path.AddLine(rect.Left + 1, rect.Bottom + 1, rect.Left + rect.Height, rect.Top + 2);
                    path.AddLine(rect.Left + rect.Height + 4, rect.Top, rect.Right - 3, rect.Top);
                    path.AddLine(rect.Right - 1, rect.Top + 2, rect.Right - 1, rect.Bottom + 1);
                }
                else
                {
                    if (index == this.SelectedIndex)
                    {
                        path.AddLine(rect.Left + 5 - rect.Height, rect.Bottom + 1, rect.Left + 4, rect.Top + 2);
                        path.AddLine(rect.Left + 8, rect.Top, rect.Right - 3, rect.Top);
                        path.AddLine(rect.Right - 1, rect.Top + 2, rect.Right - 1, rect.Bottom + 1);
                        path.AddLine(rect.Right - 1, rect.Bottom + 1, rect.Left + 5 - rect.Height, rect.Bottom + 1);
                    }
                    else
                    {
                        path.AddLine(rect.Left, rect.Top + 6, rect.Left + 4, rect.Top + 2);
                        path.AddLine(rect.Left + 8, rect.Top, rect.Right - 3, rect.Top);
                        path.AddLine(rect.Right - 1, rect.Top + 2, rect.Right - 1, rect.Bottom + 1);
                        path.AddLine(rect.Right - 1, rect.Bottom + 1, rect.Left, rect.Bottom + 1);
                    }
                }
                return path;
            }

        public void TestPathPointSymbolizer()
        {
            var fdt = CreatingData.CreatePointFeatureDataTableFromArrays(
                CreatingData.GetRandomOrdinates(50, -180, 180), CreatingData.GetRandomOrdinates(50, -90, 90), null);
            var geometryFeatureProvider = new SharpMap.Data.Providers.FeatureProvider(fdt);
            var layer = new SharpMap.Layers.VectorLayer("randompoints", geometryFeatureProvider);
            var pps =
                SharpMap.Rendering.Symbolizer.PathPointSymbolizer.CreateSquare(new System.Drawing.Pen(System.Drawing.Color.Red, 2),
                                                                    new System.Drawing.SolidBrush(
                                                                        System.Drawing.Color.DodgerBlue), 20);
            layer.Style.PointSymbolizer = pps;
            var map = new SharpMap.Map(new System.Drawing.Size(720, 360));
            map.Layers.Add(layer);
            map.ZoomToExtents();
            map.GetMap().Save("PathPointSymbolizer1.bmp");

            pps.Rotation = -30;
            map.GetMap().Save("PathPointSymbolizer2.bmp");

            pps.Rotation = 0f;
            pps.Offset = new System.Drawing.PointF(4, 4);
            map.GetMap().Save("PathPointSymbolizer3.bmp");

            var gpTriangle1 = new System.Drawing.Drawing2D.GraphicsPath();
            gpTriangle1.AddPolygon(new [] { new System.Drawing.Point(0, 0), new System.Drawing.Point(5, 10), new System.Drawing.Point(10, 0), new System.Drawing.Point(0, 0), });
            var gpTriangle2 = new System.Drawing.Drawing2D.GraphicsPath();
            gpTriangle2.AddPolygon(new[] { new System.Drawing.Point(0, 0), new System.Drawing.Point(-5, -10), new System.Drawing.Point(-10, 0), new System.Drawing.Point(0, 0), });
            pps = new
                SharpMap.Rendering.Symbolizer.PathPointSymbolizer(new[]
                                                        {
                                                            new SharpMap.Rendering.Symbolizer.PathPointSymbolizer.PathDefinition
                                                                {
                                                                    Path = gpTriangle1,
                                                                    Line =
                                                                        new System.Drawing.Pen(
                                                                        System.Drawing.Color.Red, 2),
                                                                    Fill =
                                                                        new System.Drawing.SolidBrush(
                                                                        System.Drawing.Color.DodgerBlue)
                                                                },
                                                            new SharpMap.Rendering.Symbolizer.PathPointSymbolizer.PathDefinition
                                                                {
                                                                    Path = gpTriangle2,
                                                                    Line =
                                                                        new System.Drawing.Pen(
                                                                        System.Drawing.Color.DodgerBlue, 2),
                                                                    Fill =
                                                                        new System.Drawing.SolidBrush(
                                                                        System.Drawing.Color.Red)
                                                                }

                                                        }){ Rotation = 45 };

            layer.Style.PointSymbolizer = pps;
            map.GetMap().Save("PathPointSymbolizer4.bmp");
            pps.Rotation = 180;
            map.GetMap().Save("PathPointSymbolizer5.bmp");

        }