C# Media.Pen类代码示例

        protected override void OnRender(DrawingContext drawingContext)
        {
            double width = RenderSize.Width;
            double height = RenderSize.Height;
            MeshGeometry3D mesh = Mesh;

            if (mesh != null)
            {
                Pen pen = new Pen(Brushes.Black, 1.0);

                int numTriangles = mesh.TriangleIndices.Count/3;

                for(int i = 0; i < numTriangles; i++)
                {
                    DrawTriangle(drawingContext,
                                 pen,
                                 mesh.TextureCoordinates[mesh.TriangleIndices[i * 3]],
                                 mesh.TextureCoordinates[mesh.TriangleIndices[i * 3 + 1]],
                                 mesh.TextureCoordinates[mesh.TriangleIndices[i * 3 + 2]],
                                 width,
                                 height);
                }
            }

            base.OnRender(drawingContext);
        }

 protected override void OnRender(DrawingContext drawingContext)
 {
     FoldingMargin margin = VisualParent as FoldingMargin;
     Pen activePen = new Pen(margin.SelectedFoldingMarkerBrush, 1);
     Pen inactivePen = new Pen(margin.FoldingMarkerBrush, 1);
     activePen.StartLineCap = inactivePen.StartLineCap = PenLineCap.Square;
     activePen.EndLineCap = inactivePen.EndLineCap = PenLineCap.Square;
     Size pixelSize = PixelSnapHelpers.GetPixelSize(this);
     Rect rect = new Rect(pixelSize.Width / 2,
                          pixelSize.Height / 2,
                          this.RenderSize.Width - pixelSize.Width,
                          this.RenderSize.Height - pixelSize.Height);
     drawingContext.DrawRectangle(
         IsMouseDirectlyOver ? margin.SelectedFoldingMarkerBackgroundBrush : margin.FoldingMarkerBackgroundBrush,
         IsMouseDirectlyOver ? activePen : inactivePen, rect);
     double middleX = rect.Left + rect.Width / 2;
     double middleY = rect.Top + rect.Height / 2;
     double space = PixelSnapHelpers.Round(rect.Width / 8, pixelSize.Width) + pixelSize.Width;
     drawingContext.DrawLine(activePen,
                             new Point(rect.Left + space, middleY),
                             new Point(rect.Right - space, middleY));
     if (!isExpanded) {
         drawingContext.DrawLine(activePen,
                                 new Point(middleX, rect.Top + space),
                                 new Point(middleX, rect.Bottom - space));
     }
 }

 /// <summary>Draws a snapped orthogonal line.</summary>
 internal static void DrawOrthogonal(DrawingContext dc, Orientation orientation, Pen pen, double q, double p0, double p1) {
    if (orientation == Orientation.Horizontal) {
       DrawHorizontal(dc, pen, q, p0, p1);
    } else {
       DrawVertical(dc, pen, q, p0, p1);
    }
 }

        public override void Draw()
        {
            base.Draw();

            if (Series != null && Series.Count >= 3) {
                Size boxSize = new Size(10, 10);
                double y = (this.Height - boxSize.Height) / 2;
                Pen border = new Pen(Brushes.Gray, 1);

                m_elementX.Text = Series[0].Label;
                m_elementX.BoxSize = boxSize;
                m_elementX.Offset = new Vector(this.Width - 186, y);
                m_elementX.Background = new SolidColorBrush(Series[0].Color);
                m_elementX.Border = border;
                m_elementX.Draw();

                m_elementY.Text = Series[1].Label;
                m_elementY.BoxSize = boxSize;
                m_elementY.Offset = new Vector(this.Width - 120, y);
                m_elementY.Background = new SolidColorBrush(Series[1].Color);
                m_elementY.Border = border;
                m_elementY.Draw();

                m_elementZ.Text = Series[2].Label;
                m_elementZ.BoxSize = boxSize;
                m_elementZ.Offset = new Vector(this.Width - 54, y);
                m_elementZ.Background = new SolidColorBrush(Series[2].Color);
                m_elementZ.Border = border;
                m_elementZ.Draw();
            }
        }

        /// <summary>
        ///     DrawGeometry -
        ///     Draw a Geometry with the provided Brush and/or Pen.
        ///     If both the Brush and Pen are null this call is a no-op.
        /// </summary>
        /// <param name="brush">
        ///     The Brush with which to fill the Geometry.
        ///     This is optional, and can be null, in which case no fill is performed.
        /// </param>
        /// <param name="pen">
        ///     The Pen with which to stroke the Geometry.
        ///     This is optional, and can be null, in which case no stroke is performed.
        /// </param>
        /// <param name="geometry"> The Geometry to fill and/or stroke. </param>
        public override void DrawGeometry(
            Brush brush,
            Pen pen,
            Geometry geometry)
        {
            if (IsCurrentLayerNoOp ||(geometry == null) || geometry.IsEmpty())
            {
                return;
            }

            if (brush != null)
            {
                _contains |= geometry.FillContains(_point);
            }

            // If we have a pen and we haven't yet hit, try the widened geometry.
            if ((pen != null) && !_contains)
            {
                _contains |= geometry.StrokeContains(pen, _point);
            }

            // If we've hit, stop walking.
            if (_contains)
            {
                StopWalking();
            }
        }

        public PairedCharacterRenderer()
        {
            highlightBrush = new SolidColorBrush(Colors.LightBlue);
            highlightPen = new Pen(highlightBrush, 1.0);

            PairedCharacters = new TextSegmentCollection<TextSegment>();
        }

        protected override void OnRender(System.Windows.Media.DrawingContext drawingContext)
        {
            base.OnRender(drawingContext);

            double height = element.ActualHeight;
            double width = element.ActualWidth;

            double linesHorizontal = height / LINEFACTOR;
            double linesVertical = width / LINEFACTOR;

            var pen = new Pen(Brushes.Blue, 0.1) { StartLineCap = PenLineCap.Triangle, EndLineCap = PenLineCap.Triangle };

            int offset = 0;

            for (int i = 0; i <= linesVertical; ++i)
            {
                offset = offset + LINEFACTOR;
                drawingContext.DrawLine(pen, new Point(offset, 0), new Point(offset, height));
            }

            offset = 0;

            for (int i = 0; i <= linesHorizontal; ++i)
            {
                offset = offset + LINEFACTOR;
                drawingContext.DrawLine(pen, new Point(0, offset), new Point(width, offset));
            }
        }

        public PathOutlineVisual(IPathOutline outline)
        {
            var brush = new SolidColorBrush(outline.LineColor);
            var pen = new Pen(brush, 1);

            var geometry = new StreamGeometry();
            using (var gc = geometry.Open())
            {

                gc.BeginFigure(outline.BottomLeft, false, false);
                gc.LineTo(outline.TopLeft, true, true);
                gc.ArcTo(outline.TopRight,
                    new Size(outline.Radius + (outline.Width / 2), outline.Radius + (outline.Width / 2)),
                    1,
                    false,
                    outline.Direction == PathType.Convex ? SweepDirection.Clockwise : SweepDirection.Counterclockwise,
                    true,
                    true);

                gc.LineTo(outline.BottomRight, true, true);
                gc.ArcTo(outline.BottomLeft,
                    new Size(outline.Radius - (outline.Width / 2), outline.Radius - (outline.Width / 2)),
                    1,
                    false,
                    outline.Direction == PathType.Convex ? SweepDirection.Counterclockwise : SweepDirection.Clockwise,
                    true,
                    true);

            }

            using (var context = RenderOpen())
            {
                context.DrawGeometry(brush, pen, geometry);
            }
        }

 private static GuidelineSet CreateGuidelineSet(Pen pen, Rect rect)
 {
     var halfPenWidth = pen.Thickness / 2;
     var guidelines = new GuidelineSet(new[] {rect.Left - halfPenWidth, rect.Right - halfPenWidth},
                                       new [] {rect.Top - halfPenWidth, rect.Bottom - halfPenWidth});
     return guidelines;
 }

        protected override void OnRender(System.Windows.Media.DrawingContext drawingContext)
        {
            Random r = new Random();
            Rect adornedElementRect = new Rect(this.AdornedElement.DesiredSize);
            Point stPt = new Point(adornedElementRect.X, adornedElementRect.Y);
            for (int x = 0; x < Number; x++)
            {

                Ellipse e = new Ellipse();
                e.Width = 4;

                Brush b = new SolidColorBrush(new Color() { R =(byte) r.Next(0,255), G =(byte) r.Next(0,255),B =(byte) r.Next(0,255) });

                Pen p = new Pen(Brushes.Black,1);
                int Rad = 3 ;
                drawingContext.DrawEllipse(b, p, stPt, Rad, Rad);
                stPt.X += (Rad * 2) + 1;
                if (stPt.X > adornedElementRect.Width)
                {
                    stPt.X = 3;
                    stPt.Y += 3;
                }

            }

            // Some arbitrary drawing implements.
        }

        public AchievementAdornments(IWpfTextView view)
        {
            this.view = view;
            this.layer = view.GetAdornmentLayer("AchievementAdornments");
            this.descriptionLayer = view.GetAdornmentLayer("AchievementAdornmentsDescription");

            view.LayoutChanged += OnLayoutChanged;

            Brush brush = new SolidColorBrush(Color.FromArgb(0x20, 0x00, 0x00, 0xff));
            brush.Freeze();

            Brush penBrush = new SolidColorBrush(Colors.Red);
            penBrush.Freeze();

            Pen pen = new Pen(penBrush, 0.5);
            pen.Freeze();

            this.brush = brush;
            this.pen = pen;

            AchievementUIContext.AchievementClicked += (sender, e) =>
            {
                Reset();

                var filePath = GetFilePath(view);
                if (e.AchievementDescriptor.CodeOrigin.FileName != filePath)
                    return;

                codeOrigin = e.AchievementDescriptor.CodeOrigin;
                achievementUiElement = (UIElement)e.UIElement;

                CreateAdornment();
            };
        }

        public YearRegionFieldWindow(string parameterName, IParameter2DimensionalTypeless<double> parameterToDisplay)
        {
            InitializeComponent();

            _parameter = parameterToDisplay;
            _parameterName = parameterName;

            plotterHeader.Content = parameterName;

            var data2 = from p in parameterToDisplay.GetEnumerator()
                        where !Double.IsNaN(p.Value) && !Double.IsInfinity(p.Value)
                        group p by p.Dimension2;

            foreach (var series in data2)
            {
                var data = from p in series
                           select new Point(p.Dimension1.Index + 1950, p.Value);

                var dd = data.ToArray();
                var d = dd.AsDataSource();

                int remainder1 = series.Key.Index % 4;
                var color = remainder1 == 0 ? Brushes.Blue : remainder1 == 1 ? Brushes.Red : remainder1 == 2 ? Brushes.Green : Brushes.Gold;

                int tt = series.Key.Index / 4;
                var dashline = tt == 0 ? DashStyles.Solid : tt == 1 ? DashStyles.Dash : tt == 2 ? DashStyles.Dot : DashStyles.DashDot;
                var linedescr = tt == 0 ? "solid" : tt == 1 ? "dash" : tt == 2 ? "dot" : "dash-dot";

                var pen = new Pen(color, 2);
                pen.DashStyle = dashline;
                plotter.AddLineGraph(d, pen, new PenDescription(String.Format("{0} ({1})", series.Key, linedescr)));
            }
        }

		protected override void OnRender(DrawingContext drawingContext)
		{
			Pen blackPen = new Pen(Brushes.Black, 1);
			blackPen.StartLineCap = PenLineCap.Square;
			blackPen.EndLineCap = PenLineCap.Square;
			Size pixelSize = PixelSnapHelpers.GetPixelSize(this);
			Rect rect = new Rect(pixelSize.Width / 2,
			                     pixelSize.Height / 2,
			                     this.RenderSize.Width - pixelSize.Width,
			                     this.RenderSize.Height - pixelSize.Height);
			drawingContext.DrawRectangle(Brushes.White,
			                             IsMouseDirectlyOver ? blackPen : new Pen(Brushes.Gray, 1),
			                             rect);
			double middleX = rect.Left + rect.Width / 2;
			double middleY = rect.Top + rect.Height / 2;
			double space = PixelSnapHelpers.Round(rect.Width / 8, pixelSize.Width) + pixelSize.Width;
			drawingContext.DrawLine(blackPen,
			                        new Point(rect.Left + space, middleY),
			                        new Point(rect.Right - space, middleY));
			if (!isExpanded) {
				drawingContext.DrawLine(blackPen,
				                        new Point(middleX, rect.Top + space),
				                        new Point(middleX, rect.Bottom - space));
			}
		}

        // Create the pen and triangle in a static constructor and freeze them to improve performance.
        static InsertionAdorner()
        {
            pen = new Pen
            {
                Brush = Brushes.Gray,
                Thickness = 2
            };
            pen.Freeze();

            LineSegment firstLine = new LineSegment(new Point(0, -5), false);
            firstLine.Freeze();
            LineSegment secondLine = new LineSegment(new Point(0, 5), false);
            secondLine.Freeze();

            PathFigure figure = new PathFigure
            {
                StartPoint = new Point(5, 0)
            };
            figure.Segments.Add(firstLine);
            figure.Segments.Add(secondLine);
            figure.Freeze();

            triangle = new PathGeometry();
            triangle.Figures.Add(figure);
            triangle.Freeze();
        }

      // initializes the edge resources
      private void _initializeResources() {
         _foreground = Brushes.Black;

         Cursor = Cursors.Hand;
         ToolTipService.SetInitialShowDelay(this, 250);

         var sourceName = Source.Class.Name;
         var targetName = Target.Class.Name;
         var cardinality = ((Role & DiagramEdgeRole.ZeroToOne) != 0) ? "[0..1]" : "[0..n]";
         
         var darkgray = (0x656565).ToBrush();
         _lineStroke = new Pen(darkgray, 2);
         _arrowFilled = darkgray;

         if (Role.Has(DiagramEdgeRole.Inheritance)) {
            ToolTip = "'{0}' inherits '{1}'".Substitute(targetName, sourceName);
         } else if (Role.Has(DiagramEdgeRole.Containment)) {
            ToolTip = "'{0}.{1}' contains '{2}{3}'".Substitute(sourceName, Label, targetName, cardinality);
         } else if (Role.Has(DiagramEdgeRole.Association)) {
            ToolTip = "'{0}.{1}' references '{2}{3}'".Substitute(sourceName, Label, targetName, cardinality);
         } else if (Role.Has(DiagramEdgeRole.WeakAssociation)) {
            _lineStroke.DashStyle = new DashStyle(new[] { 2.0, 2.0 }, 0);
            ToolTip = "'{0}.{1}' references by Id '{2}{3}'".Substitute(sourceName, Label, targetName, cardinality);
         }
         _lineStroke.Freeze();

         _arrowHollow = Brushes.White;
         _arrowStroke = new Pen(_lineStroke.Brush, _lineStroke.Thickness);
         _arrowStroke.Freeze();
      }