Exemple #1
0
        private void setPenStyle(PenStyles value)
        {
            short Pattern = Convert.ToInt16("FFFF", 16);
            int   Factor  = 0;

            switch (value)
            {
            case PenStyles.Dash:
                Pattern = Convert.ToInt16("EEEE", 16);
                Factor  = 3; break;

            case PenStyles.Dot:
                Pattern = Convert.ToInt16("AAAA", 16);
                Factor  = 3; break;

            case PenStyles.DashDot:
                Pattern = Convert.ToInt16("E4E4", 16);
                Factor  = 3; break;

            case PenStyles.DashDotDot:
                Pattern = Convert.ToInt16("E4E4", 16);
                Factor  = 3; break;

            case PenStyles.Full: break;
            }
            if (Factor > 0)
            {
                GL.LineStipple(Factor, Pattern);
                GL.Enable(EnableCap.LineStipple);
            }
            else
            {
                GL.Disable(EnableCap.LineStipple);
            }
        }
Exemple #2
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        public static void DrawXORRectangle( Graphics grp, int X1, int Y1, int X2, int Y2, PenStyles PenStyle )
        {
            // Extract the Win32 HDC from the Graphics object supplied.
            IntPtr hdc = grp.GetHdc();

            // Create a pen with a dotted style to draw the border of the
            // rectangle.
            IntPtr gdiPen = CreatePen( PenStyle,
                          1, BLACK_PEN );

            // Set the ROP cdrawint mode to XOR.
            SetROP2( hdc, R2_XORPEN );

            // Select the pen into the device context.
            IntPtr oldPen = SelectObject( hdc, gdiPen );

            // Create a stock NULL_BRUSH brush and select it into the device
            // context so that the rectangle isn't filled.
            IntPtr oldBrush = SelectObject( hdc,
                                 GetStockObject( NULL_BRUSH ) );

            // Now XOR the hollow rectangle on the Graphics object with
            // a dotted outline.
            Rectangle( hdc, X1, Y1, X2, Y2 );

            // Put the old stuff back where it was.
            SelectObject( hdc, oldBrush ); // no need to delete a stock object
            SelectObject( hdc, oldPen );
            DeleteObject( gdiPen );		// but we do need to delete the pen

            // Return the device context to Windows.
            grp.ReleaseHdc( hdc );
        }
        public static void DrawRectangle(Graphics dc, PenStyles penStyle, int penWidth, Color col,
                                         int X1, int Y1, int X2, int Y2)
        {
            // Extract the Win32 HDC from the Graphics object supplied.
            IntPtr hdc = dc.GetHdc();

            // Create a pen.
            IntPtr gdiPen = GDI.CreatePen(penStyle, penWidth, GDI.RGB(col.R, col.G, col.B));

            GDI.SetROP2(hdc, drawingMode.R2_XORPEN);
            GDI.SetBkMode(hdc, TRANSPARENT);

            // Set the ROP cdrawint mode to XOR.
            GDI.SetROP2(hdc, drawingMode.R2_XORPEN);

            // Select the pen into the device context.
            IntPtr oldPen = GDI.SelectObject(hdc, gdiPen);

            // Create a stock NULL_BRUSH brush and select it into the device
            // context so that the rectangle isn't filled.
            IntPtr oldBrush = GDI.SelectObject(hdc, GDI.GetStockObject(NULL_BRUSH));

            // Now XOR the hollow rectangle on the Graphics object with
            // a dotted outline.
            GDI.Rectangle(hdc, X1, Y1, X2, Y2);

            // Put the old stuff back where it was.
            GDI.SelectObject(hdc, oldBrush);             // no need to delete a stock object
            GDI.SelectObject(hdc, oldPen);
            GDI.DeleteObject(gdiPen);                    // but we do need to delete the pen

            // Return the device context to Windows.
            dc.ReleaseHdc(hdc);
        }
        public static void DrawLine(PenStyles penStyle, int penWidth, Color col,
                                    Graphics grp, int X1, int Y1, int X2, int Y2)
        {
            // Extract the Win32 HDC from the Graphics object supplied.
            IntPtr hdc = grp.GetHdc();

            // Create a pen.
            IntPtr gdiPen = GDI.CreatePen(penStyle, penWidth, GDI.RGB(col.R, col.G, col.B));

            GDI.SetROP2(hdc, drawingMode.R2_XORPEN);
            GDI.SetBkMode(hdc, TRANSPARENT);

            // Set the ROP cdrawint mode to XOR.
            GDI.SetROP2(hdc, drawingMode.R2_XORPEN);

            // Select the pen into the device context.
            IntPtr oldPen = GDI.SelectObject(hdc, gdiPen);

            // Draw the line.
            GDI.MoveToEx(hdc, X1, Y1, 0);
            GDI.LineTo(hdc, X2, Y2);

            // Put the old stuff back where it was.
            GDI.SelectObject(hdc, oldPen);
            GDI.DeleteObject(gdiPen);

            // Return the device context to Windows.
            grp.ReleaseHdc(hdc);
        }
 /// <summary>
 /// Initializes a new instance of the GDIWrap class.
 /// </summary>
 public GDIWrap()
 {   // Set up for XOR drawing to begin with
     this._borderColor = Color.Transparent;
     this._fillColor   = Color.Black;
     this._lineWidth   = 2;
     this._brushStyle  = BrushStyles.BS_NULL;
     this._penStyle    = PenStyles.PS_SOLID;
 }
Exemple #6
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        private static extern IntPtr CreatePen(
            PenStyles fnPenStyle, // pen style

            int nWidth,           // pen width

            int crColor           // pen color

            );
Exemple #7
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        public IntPtr CreatePEN(
            PenStyles fnPenStyle, // pen style

            int nWidth,           // pen width

            int crColor           // pen color

            )
        {
            return(CreatePen(fnPenStyle, nWidth, crColor));
        }
Exemple #8
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        public IntPtr CreatePEN(
            PenStyles fnPenStyle,    // pen style

            int nWidth,        // pen width

            int crColor   // pen color

            )
        {
           return CreatePen(fnPenStyle,nWidth,crColor);
        }
Exemple #9
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        /// <summary>
        /// internal.
        /// </summary>
        internal static void Renew()
        {
            if (MeshIndices.Count > 0)
            {
                xyzf[] _Colors = null;
                if ((MeshColors != null) && (MeshColors.Count == MeshVertices.Count))
                {
                    _Colors = MeshColors.ToArray();
                }
                xyf[] TextureCoords = null;
                if (MeshTextureCoords.Count > 0)
                {
                    TextureCoords = MeshTextureCoords.ToArray();
                }


                CompiledMesh M = new CompiledMesh(MeshIndices.ToArray(), MeshVertices.ToArray(), MeshNormals.ToArray(), TextureCoords, _Colors);
                // sollte nur im snap modus passieren
                M.SnapObject = Selector.StoredSnapItems.Count - 1;
                M.PenWidth   = PenWidth;
                M.Mode       = MeshMode;
                M.Material   = Material;
                M.PenColor   = Emission;
                M.PenStyle   = PenStyle;
                M.Texture    = Texture;
                MeshListCurrent.Progs.Add(M);
                MeshMode = PolygonMode.Fill;
                if (Selector.RegisterSnap)
                {
                    Selector.SnapMesh.Progs.Add(M);
                }
            }



            PenWidth          = 1;
            MeshVertices      = new List <xyzf>();
            MeshNormals       = new List <xyzf>();
            MeshTextureCoords = new List <xyf>();
            MeshIndices       = new List <IndexType>();
            HasMaterial       = false;
            _Material         = Materials.Chrome;
            HasTexture        = false;
            _Texture          = null;
            HasPenWidth       = false;
            _PenWidth         = 1;
            HasEmission       = false;
            _Emission         = System.Drawing.Color.Black;
            HasPenStyle       = false;
            _PenStyle         = PenStyles.Full;
            SnapItem          = null;
            MeshMode          = PolygonMode.Fill;
        }
Exemple #10
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        public GDI()
        {
            // Get screen's device context
            hDC = GetDC(ScreenHWND);

            // Indicates if pen object created and
            // attached to screen's device context
            PenCreated = false;

            CPenWidth = 1;
            CPenColor = 0;
            CPenStyle = PenStyles.PS_SOLID;
        }
Exemple #11
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        public static void DrawRect(Graphics dc, PenStyles penStyle, int penWidth, Color col, int X1, int Y1, int X2, int Y2)
        {
            IntPtr hdc    = dc.GetHdc();
            IntPtr gdiPen = GDI.CreatePen(penStyle, penWidth, RGB(col.R, col.G, col.B));

            GDI.SetROP2(hdc, drawingMode.R2_XORPEN);
            GDI.SetBkMode(hdc, TRANSPARENT);
            GDI.SetROP2(hdc, drawingMode.R2_XORPEN);
            IntPtr oldPen = GDI.SelectObject(hdc, gdiPen); IntPtr oldBrush = GDI.SelectObject(hdc, GDI.GetStockObject(NULL_BRUSH));

            GDI.Rectangle(hdc, X1, Y1, X2, Y2);
            GDI.SelectObject(hdc, oldBrush); GDI.SelectObject(hdc, oldPen);
            GDI.DeleteObject(gdiPen); // no need to delete a stock object but we do need to delete the pen
            dc.ReleaseHdc(hdc);
        }
Exemple #12
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        public static void DrawLine(PenStyles penStyles, int penWidth, Color color, Graphics graphics, int x1, int y1, int x2, int y2)
        {
            IntPtr hdc = graphics.GetHdc();
            IntPtr pen = GDI.CreatePen(penStyles, penWidth, GDI.RGB(color.R, color.G, color.B));

            GDI.SetROP2(hdc, DrawingMode.R2_XORPEN);
            GDI.SetBkMode(hdc, Transparent);
            GDI.SetROP2(hdc, DrawingMode.R2_XORPEN);
            IntPtr oldPen = GDI.SelectObject(hdc, pen);

            GDI.MoveToEx(hdc, x1, y1, 0);
            GDI.LineTo(hdc, x2, y2);
            GDI.SelectObject(hdc, oldPen);
            GDI.DeleteObject(pen);
            graphics.Dispose();
        }
Exemple #13
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        public static void DrawRectangle(Graphics graphics, PenStyles penStyles, int penWidth, Color color, int x1, int y1, int x2, int y2)
        {
            IntPtr hdc = graphics.GetHdc();
            IntPtr pen = GDI.CreatePen(penStyles, penWidth, GDI.RGB(color.R, color.G, color.B));

            GDI.SetROP2(hdc, DrawingMode.R2_XORPEN);
            GDI.SetBkMode(hdc, Transparent);
            GDI.SetROP2(hdc, DrawingMode.R2_XORPEN);
            IntPtr oldPen   = GDI.SelectObject(hdc, pen);
            IntPtr oldBrush = GDI.SelectObject(hdc, GDI.GetStockObject(NullBrush));

            GDI.Rectangle(hdc, x1, y1, x2, y2);
            GDI.SelectObject(hdc, oldPen);
            GDI.DeleteObject(pen);
            graphics.ReleaseHdc();
        }
Exemple #14
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        public static void DrawLine(Graphics dc, PenStyles penStyle, int penWidth, Color col, int X1, int Y1, int X2, int Y2)
        {
            IntPtr hdc    = dc.GetHdc();
            IntPtr gdiPen = GDI.CreatePen(penStyle, penWidth, RGB(col.R, col.G, col.B));

            GDI.SetROP2(hdc, drawingMode.R2_XORPEN);
            GDI.SetBkMode(hdc, TRANSPARENT);
            GDI.SetROP2(hdc, drawingMode.R2_XORPEN);
            IntPtr oldPen = GDI.SelectObject(hdc, gdiPen);

            GDI.MoveToEx(hdc, X1, Y1, 0);
            GDI.LineTo(hdc, X2, Y2);
            GDI.SelectObject(hdc, oldPen);
            GDI.DeleteObject(gdiPen);
            dc.ReleaseHdc(hdc);
        }
Exemple #15
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        // ref: https://www.codeproject.com/Articles/4958/Combining-GDI-and-GDI-to-Draw-Rubber-Band-Rectangl
        public static void DrawXorRectangle(this Graphics g, PenStyles style, int x1, int y1, int x2, int y2)
        {
            IntPtr hdc = g.GetHdc();
            IntPtr pen = NativeMethods.CreatePen(style, 1, NativeMethods.BLACK_PEN);

            NativeMethods.SetROP2(hdc, NativeMethods.R2_XORPEN);

            IntPtr oldPen   = NativeMethods.SelectObject(hdc, pen);
            IntPtr oldBrush = NativeMethods.SelectObject(hdc, NativeMethods.GetStockObject(NativeMethods.NULL_BRUSH));

            NativeMethods.Rectangle(hdc, x1, y1, x2, y2);

            NativeMethods.SelectObject(hdc, oldBrush);
            NativeMethods.SelectObject(hdc, oldPen);
            NativeMethods.DeleteObject(pen);

            g.ReleaseHdc(hdc);
        }
Exemple #16
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        public GDI(DrawingModes DM, PenStyles PS, int PW, int PC)
        {
            // Get screen's device context
            hDC = GetDC(ScreenHWND);

            // Indicates if pen object created and
            // attached to screen's device context
            PenCreated = true;

            // Apply new drawing modes, colors e.t.c.
            this.CPenWidth = PW;
            this.CPenColor = PC;
            this.CPenStyle = PS;
            this.CDrawMode = DM;

            // Obtain system resources
            hPEN   = CreatePen(PS, PW, PC);
            OldROP = SetROP2(hDC, DM);
            SelectObject(hDC, hPEN);
        }
Exemple #17
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        public static void DrawRectangle(
            Graphics g,
            PenStyles penStyle, Color penColor, int penWidth,
            LitMath.Vector2 pnt1, LitMath.Vector2 pnt2)
        {
            // Extract the Win32 HDC from the Graphics object supplied.
            IntPtr hdc = g.GetHdc();

            // Create a pen with a dotted style to draw the border of the
            // rectangle.
            IntPtr gdiPen = CreatePen(penStyle, penWidth, RGB(penColor.R, penColor.G, penColor.B));

            //
            SetBkMode(hdc, TRANSPARENT);

            // Set the ROP cdrawint mode to XOR.
            SetROP2(hdc, R2_XORPEN);

            // Select the pen into the device context.
            IntPtr oldPen = SelectObject(hdc, gdiPen);

            // Create a stock NULL_BRUSH brush and select it into the device
            // context so that the rectangle isn't filled.
            IntPtr oldBrush = SelectObject(hdc, GetStockObject(NULL_BRUSH));

            // Now XOR the hollow rectangle on the Graphics object with
            // a dotted outline.
            Rectangle(hdc, (int)pnt1.x, (int)pnt1.y, (int)pnt2.x, (int)pnt2.y);

            // Put the old stuff back where it was.
            SelectObject(hdc, oldBrush); // no need to delete a stock object
            SelectObject(hdc, oldPen);
            DeleteObject(gdiPen);        // but we do need to delete the pen

            // Return the device context to Windows.
            g.ReleaseHdc(hdc);
        }
Exemple #18
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 public static void DrawRectangle(Graphics graphics, PenStyles penStyles, int penWidth, Color color, PointF topLeft, PointF bottomRight)
 {
     DrawRectangle(graphics, penStyles, penWidth, color, (int)topLeft.X, (int)topLeft.Y, (int)bottomRight.X, (int)bottomRight.Y);
 }
Exemple #19
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 private static extern IntPtr CreatePen(PenStyles nPenStyle,
                                        int nWidth,
                                        int crColor);
Exemple #20
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 // Default contructor - sets member fields
 public RubberbandRectangle()
 {
     penStyle = PenStyles.PS_DOT;
 }
Exemple #21
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 private static extern IntPtr CreatePen(
     PenStyles enPenStyle,               // Pen style from enum PenStyles
     int nWidth,                         // Width of pen
     int crColor                         // Color of pen
     );
Exemple #22
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        public static void DrawRectangle(Graphics dc, PenStyles penStyle, int penWidth, Color col,
            int X1, int Y1, int X2, int Y2)
        {
            // Extract the Win32 HDC from the Graphics object supplied.
            IntPtr hdc = dc.GetHdc();

            // Create a pen.
            IntPtr gdiPen = GDI.CreatePen(penStyle, penWidth, GDI.RGB(col.R, col.G, col.B));
            GDI.SetROP2(hdc, drawingMode.R2_XORPEN);
            GDI.SetBkMode(hdc, TRANSPARENT);

            // Set the ROP cdrawint mode to XOR.
            GDI.SetROP2(hdc, drawingMode.R2_XORPEN);

            // Select the pen into the device context.
            IntPtr oldPen = GDI.SelectObject(hdc, gdiPen);

            // Create a stock NULL_BRUSH brush and select it into the device
            // context so that the rectangle isn't filled.
            IntPtr oldBrush = GDI.SelectObject(hdc, GDI.GetStockObject(NULL_BRUSH));

            // Now XOR the hollow rectangle on the Graphics object with
            // a dotted outline.
            GDI.Rectangle(hdc, X1, Y1, X2, Y2);

            // Put the old stuff back where it was.
            GDI.SelectObject(hdc, oldBrush); // no need to delete a stock object
            GDI.SelectObject(hdc, oldPen);
            GDI.DeleteObject(gdiPen);        // but we do need to delete the pen

            // Return the device context to Windows.
            dc.ReleaseHdc(hdc);
        }
Exemple #23
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 public IntPtr CreatePEN(PenStyles penStyles, int width, int color)
 {
     return(CreatePen(penStyles, width, color));
 }
 public IntPtr CreatePEN(PenStyles fnPenStyle, int nWidth, int crColor)
 {
     return(CreatePen(fnPenStyle, nWidth, crColor));
 }
 public static void DrawRectangle(Graphics dc, PenStyles penStyle, int penWidth, Color col,
                                  PointF topleft, PointF bottomright)
 {
     DrawRectangle(dc, penStyle, penWidth, col, (int)topleft.X, (int)topleft.Y, (int)bottomright.X, (int)bottomright.Y);
 }
Exemple #26
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        public static void DrawXORRectangle(Graphics grp, int X1, int Y1, int X2, int Y2, PenStyles PenStyle)
        {
            // Extract the Win32 HDC from the Graphics object supplied.
            IntPtr hdc = grp.GetHdc();

            // Create a pen with a dotted style to draw the border of the
            // rectangle.
            IntPtr gdiPen = CreatePen(PenStyle,
                                      1, BLACK_PEN);

            // Set the ROP cdrawint mode to XOR.
            SetROP2(hdc, R2_XORPEN);

            // Select the pen into the device context.
            IntPtr oldPen = SelectObject(hdc, gdiPen);

            // Create a stock NULL_BRUSH brush and select it into the device
            // context so that the rectangle isn't filled.
            IntPtr oldBrush = SelectObject(hdc,
                                           GetStockObject(NULL_BRUSH));

            // Now XOR the hollow rectangle on the Graphics object with
            // a dotted outline.
            Rectangle(hdc, X1, Y1, X2, Y2);

            // Put the old stuff back where it was.
            SelectObject(hdc, oldBrush);               // no need to delete a stock object
            SelectObject(hdc, oldPen);
            DeleteObject(gdiPen);                      // but we do need to delete the pen

            // Return the device context to Windows.
            grp.ReleaseHdc(hdc);
        }
Exemple #27
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 public IntPtr CreatePEN(PenStyles fnPenStyle,  int nWidth, int crColor)
 {
     return CreatePen(fnPenStyle,nWidth,crColor);
 }
Exemple #28
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 private static extern IntPtr CreatePen(
     PenStyles enPenStyle,	// Pen style from enum PenStyles
     int nWidth,				// Width of pen
     int crColor				// Color of pen
     );
Exemple #29
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 public static void DrawXorRectangle(this Graphics g, PenStyles style, Point start, Point end)
 {
     g.DrawXorRectangle(style, start.X, start.Y, end.X, end.Y);
 }
Exemple #30
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 public static extern IntPtr CreatePen(
     PenStyles fnPenStyle,    // pen style
     int nWidth,        // pen width
     int crColor   // pen color
     );
Exemple #31
0
 // Default contructor - sets member fields
 public ROP2()
 {
     penStyle = PenStyles.PS_DOT;
 }
Exemple #32
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        /// <summary>
        /// overrides the draw method .
        /// </summary>
        /// <param name="Device"></param>
        protected override void OnDraw(OpenGlDevice Device)
        {
            int StoredObject = -1;

            if (Selector.WriteToSnap)
            {
                CompiledMesh C = this as CompiledMesh;
                if (C != null)
                {
                    StoredObject = C.SnapObject;
                }
                Device.Selector.SetObjectNumber(StoredObject);
            }
            Entity.CurrentEntity = this;


            if (Compiling)
            {
                MeshCreator.AddProg(this);
                return;
            }
            float     PW   = Device.PenWidth;
            PenStyles PS   = Device.PenStyle;
            Material  Save = Device.Material;

            if (Mode == PolygonMode.Line)
            {
                Device.PenWidth = PenWidth;
                Device.PenStyle = PenStyle;
                Device.Emission = PenColor;
            }
            else
            {
                Device.Material = Material;
            }
            PolygonMode SavePolygonMode = Device.PolygonMode;

            Device.PolygonMode = Mode;
            if ((VAO >= 0) && (Device.RenderKind == RenderKind.Render))
            {
                OpenGlDevice.CheckError();
                Field C = null;
                if (Colors != null)
                {
                    C = Device.Shader.getvar("ColorEnabled");
                    if (C != null)
                    {
                        C.SetValue(1);
                    }
                }
                GL.BindVertexArray(VAO);
                if (!TesselateOn)
                {
                    GL.DrawElements(Primitives, VBOIndices.IndexArray.Length, DrawElementsType.UnsignedInt, 0);
                    OpenGlDevice.CheckError();
                }
                else
                {
                    GLShader SaveShader = Device.Shader;
                    Device.Shader = Device.TesselationtShader;
                    if (FieldResolutionFactor == null)
                    {
                        FieldResolutionFactor = Device.Shader.getvar("ResolutionFactor");
                    }
                    if (FieldDispFactor == null)
                    {
                        FieldDispFactor = Device.Shader.getvar("gDispFactor");
                    }
                    if (FieldEyePos == null)
                    {
                        FieldEyePos = Device.Shader.getvar("gEyeWorldPos");
                    }
                    if (FieldDispFactor != null)
                    {
                        FieldDispFactor.SetValue((float)TessDispFactor);
                    }
                    if (FieldEyePos != null)
                    {
                        FieldEyePos.SetValue(Device.Camera.Position);
                    }
                    Device.texture = TessDisplacementMap;
                    //GL.ActiveTexture(TextureUnit.Texture0 + 1);
                    //GL.BindTexture(TextureTarget.Texture2D, TessDisplacementMap.Handle);
                    if (Texture != null)
                    {
                        Device.texture = Texture;
                    }

                    if (FieldResolutionFactor != null)
                    {
                        FieldResolutionFactor.SetValue((float)TessResolutionFactor);
                    }

                    GL.DrawElements(BeginMode.Patches, VBOIndices.IndexArray.Length, DrawElementsType.UnsignedInt, 0);
                    TessDisplacementMap.Hide();
                    Device.Shader  = SaveShader;
                    Device.texture = null;
                }

                GL.BindVertexArray(0);
                if (Colors != null)
                {
                    if (C != null)
                    {
                        C.SetValue(0);
                    }
                }
            }
            else
            {
                if (Primitives == BeginMode.Quads)
                {
                    DrawQuads(Device);
                }
                else
                {
                    Texture SaveTexture = Device.texture;
                    Device.texture = Texture;
                    Device.drawMesh(Indices, VBOPosition.xyzPoints, VBONormals.xyzPoints, VBOTexture.xyPoints, VBOColors.xyzPoints);
                    Device.texture = SaveTexture;
                }
            }
            Device.PolygonMode = SavePolygonMode;
            if (Mode == PolygonMode.Line)
            {
                Device.PenWidth = PW;
                Device.PenStyle = PS;
                Device.Emission = Color.Black;
            }
            Device.Material = Save;
        }
Exemple #33
0
 public static void DrawRectangle(Graphics dc, PenStyles penStyle, int penWidth, Color col,
     PointF topleft, PointF bottomright)
 {
     DrawRectangle(dc, penStyle, penWidth, col, (int)topleft.X, (int)topleft.Y,(int)bottomright.X, (int)bottomright.Y);
 }
Exemple #34
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        public static void DrawLine(PenStyles penStyle, int penWidth, Color col, 
            Graphics grp, int X1, int Y1, int X2, int Y2)
        {
            // Extract the Win32 HDC from the Graphics object supplied.
            IntPtr hdc = grp.GetHdc();

            // Create a pen.
            IntPtr gdiPen = GDI.CreatePen(penStyle, penWidth, GDI.RGB(col.R, col.G, col.B));
            GDI.SetROP2(hdc, drawingMode.R2_XORPEN);
            GDI.SetBkMode(hdc, TRANSPARENT);

            // Set the ROP cdrawint mode to XOR.
            GDI.SetROP2(hdc, drawingMode.R2_XORPEN);

            // Select the pen into the device context.
            IntPtr oldPen = GDI.SelectObject(hdc, gdiPen);

            // Draw the line.
            GDI.MoveToEx(hdc, X1, Y1, 0);
            GDI.LineTo(hdc, X2, Y2);

            // Put the old stuff back where it was.
            GDI.SelectObject(hdc, oldPen);
            GDI.DeleteObject(gdiPen);

            // Return the device context to Windows.
            grp.ReleaseHdc(hdc);
        }
Exemple #35
0
 public static extern IntPtr CreatePen(PenStyles enPenStyle, int nWidth, int crColor);
Exemple #36
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 public static extern IntPtr CreatePen(PenStyles fnPenStyle, int nWidth, int crColor);