C# System.Drawing.PointF.ToSharpDX方法代码示例

 /// <summary>
 /// Paints the interior of the specified rectangle with a smooth color gradient</summary>
 /// <param name="rect">Rectangle to paint, in pixels</param>
 /// <param name="pt1">The point, in pixels, that color1 gets mapped to</param>
 /// <param name="pt2">The point, in pixels, that color2 gets mapped to</param>
 /// <param name="color1">The color to use at the first point</param>
 /// <param name="color2">The color to use at the second point</param>
 /// <remarks>Note that each color combination is used to create a brush that
 /// is cached, so you cannot use an unlimited number of color combinations.</remarks>
 public void FillRectangle(RectangleF rect, PointF pt1, PointF pt2, Color color1, Color color2)
 {
     var brush = GetCachedLinearGradientBrush(color1, color2);
     brush.StartPoint = pt1.ToSharpDX();
     brush.EndPoint = pt2.ToSharpDX();
     m_renderTarget.FillRectangle(rect.ToSharpDX(), brush);
 }

 /// <summary>
 /// Draws the formatted text described by the specified D2dTextLayout</summary>
 /// <param name="origin">The point, described in pixels, at which the upper-left
 /// corner of the text described by textLayout is drawn</param>
 /// <param name="textLayout">The formatted text to draw</param>
 /// <param name="brush">The brush used to paint any text in textLayout 
 /// that does not already have a brush associated with it as a drawing effect</param>
 public void DrawTextLayout(PointF origin, D2dTextLayout textLayout, D2dBrush brush)
 {
     m_renderTarget.DrawTextLayout(
         origin.ToSharpDX(),
         textLayout.NativeTextLayout,
         brush.NativeBrush,
         (DrawTextOptions)textLayout.DrawTextOptions);
 }

 /// <summary>
 /// Draws a line between the specified points</summary>
 /// <param name="pt1">The start point of the line, in pixels</param>
 /// <param name="pt2">The end point of the line, in pixels</param>
 /// <param name="brush">The brush used to paint the line's stroke</param>
 /// <param name="strokeWidth">A value greater than or equal to 0.0f that specifies the width of the stroke</param>
 /// <param name="strokeStyle">The style of stroke to paint, or NULL to paint a solid line</param>
 public void DrawLine(PointF pt1, PointF pt2, D2dBrush brush, float strokeWidth = 1.0f, D2dStrokeStyle strokeStyle = null)
 {
     m_renderTarget.DrawLine(pt1.ToSharpDX(), pt2.ToSharpDX(),
         brush.NativeBrush, strokeWidth,
         strokeStyle != null ? strokeStyle.NativeStrokeStyle : null);
 }

 /// <summary>
 /// Draws the specified text using the format information provided at the specified location</summary>
 /// <param name="text">The text string to draw</param>
 /// <param name="textFormat">The text format object to use</param>
 /// <param name="upperLeft">Upper left corner of the text</param>
 /// <param name="brush">The brush to use to draw the text</param>
 public void DrawText(string text, D2dTextFormat textFormat, PointF upperLeft, D2dBrush brush)
 {
     var rtsize = Size;
     using (var layout
         = new SharpDX.DirectWrite.TextLayout(D2dFactory.NativeDwFactory,
             text, textFormat.NativeTextFormat, rtsize.Width, rtsize.Height))
     {
         layout.TextAlignment = SharpDX.DirectWrite.TextAlignment.Leading;
         layout.ParagraphAlignment = SharpDX.DirectWrite.ParagraphAlignment.Near;
         if (textFormat.Underlined)
             layout.SetUnderline(true,new SharpDX.DirectWrite.TextRange(0, text.Length));
         if (textFormat.Strikeout)
             layout.SetStrikethrough(true,new SharpDX.DirectWrite.TextRange(0, text.Length));
         m_renderTarget.DrawTextLayout(upperLeft.ToSharpDX(),
             layout,
             brush.NativeBrush,
             (DrawTextOptions)textFormat.DrawTextOptions);
     }
 }

        /// <summary>
        /// Draws a Bézier spline defined by four System.Drawing.PointF structures</summary>
        /// <param name="pt1">Represents the starting point of the curve</param>
        /// <param name="pt2">Represents the first control point for the curve</param>
        /// <param name="pt3">Represents the second control point for the curve</param>
        /// <param name="pt4">Represents the ending point of the curve</param>
        /// <param name="brush">The brush used to paint the curve's stroke</param>
        /// <param name="strokeWidth">The thickness of the geometry's stroke. The stroke is centered on the geometry's outline.</param>
        /// <param name="strokeStyle">The style of stroke to apply to the geometry's outline or null to draw a solid line</param>
        public void DrawBezier(PointF pt1, PointF pt2, PointF pt3, PointF pt4, D2dBrush brush, float strokeWidth = 1.0f, D2dStrokeStyle strokeStyle = null)
        {
            using (var geom = new PathGeometry(D2dFactory.NativeFactory))
            {
                var sink = geom.Open();
                sink.BeginFigure(pt1.ToSharpDX(), FigureBegin.Hollow);
                var seg = new BezierSegment
                {
                    Point1 = pt2.ToSharpDX(),
                    Point2 = pt3.ToSharpDX(),
                    Point3 = pt4.ToSharpDX()
                };
                sink.AddBezier(seg);
                sink.EndFigure(FigureEnd.Open);
                sink.Close();
                sink.Dispose();

                var stroke = strokeStyle == null ? null : strokeStyle.NativeStrokeStyle;
                m_renderTarget.DrawGeometry(geom, brush.NativeBrush, strokeWidth, stroke);
            }
        }