C# Brush类代码示例

 public Brush(Brush brush)
 {
     Color = brush.Color;
     Background = brush.Background;
     BitmapId = brush.BitmapId;
     FillStyle = brush.FillStyle;
 }

 public PieChart(float fltCount, float fltTotal, Color c)
 {
     this.fltCount = fltCount;
     this.fltTotal = fltTotal;
     this.colorSlice = c;
     this.brushSlice = new SolidBrush(c);
 }

        public Button(string pText, float pX, float pY, float pWidth, float pHeight, bool pSmall)
        {
            width = pWidth;
            height = pHeight;
            x = pX;
            y = pY;

            // Text properties
            var brushProp = new LinearGradientBrushProperties();
            brushProp.StartPoint = new Vector2(x, y);
            brushProp.EndPoint = new Vector2(x, y + height);

            var stops = new GradientStop[2];
            stops[0] = new GradientStop() { Color = new Color4(1, 1, 1, 0.5f), Position = 0 };
            stops[1] = new GradientStop() { Color = new Color4(1, 1, 1, 1.0f), Position = 1 };

            textBrush = new LinearGradientBrush(GraphicsWindow.Instance.RenderTarget2D, brushProp, new GradientStopCollection(GraphicsWindow.Instance.RenderTarget2D, stops));
            textLayout = new TextLayout(Factories.FactoryWrite, pText, pSmall? Constants.SmallFont : Constants.RegularFont, width, height);

            // Frame properties
            borderBrush = new SolidColorBrush(GraphicsWindow.Instance.RenderTarget2D, new Color4(0, 0, 0, 0.3f));
            backBrush = new SolidColorBrush(GraphicsWindow.Instance.RenderTarget2D, new Color4(0.1f, 0.3f, 0.4f, 0.5f));
            highlightBrush = new SolidColorBrush(GraphicsWindow.Instance.RenderTarget2D, new Color4(0.2f, 0.6f, 0.8f, 0.5f));
            highlight = false;
        }

    public static Rectangle CreateRectangle(Brush brush)
    {
        Rectangle rt = new Rectangle();
        rt.Fill = brush;

        return rt;
    }

 public virtual void Initialize(DeviceManager deviceManager)
 {
     sceneColorBrush = new SolidColorBrush(deviceManager.ContextDirect2D, Color.Blue);
     textFormat = new TextFormat(deviceManager.FactoryDirectWrite, "Calibri", 20) { TextAlignment = TextAlignment.Leading, ParagraphAlignment = ParagraphAlignment.Center };
     clock = Stopwatch.StartNew();
     deviceManager.ContextDirect2D.TextAntialiasMode = TextAntialiasMode.Grayscale;
 }

	override protected void Awake() {
		base.Awake();
		
		wizard = GameObject.Find("Wizard").GetComponent<Wizard>();
		candy = GameObject.Find("Candy").GetComponent<Candy>();
		eraserBrush = GameObject.Find("EraserBrush").GetComponent<Brush>(); 
	}

        public virtual void Initialize(DeviceManager deviceManager)
        {

            sceneColorBrush = new SolidColorBrush(deviceManager.ContextDirect2D, Colors.White);

            clock = Stopwatch.StartNew();
        }

        private System.Drawing.Brush BrushToNativeBrush(Brush brush)
        {
            if (brush is SolidBrush)
            {
                return new System.Drawing.SolidBrush(ColorToNativeColor((brush as SolidBrush).Color));
            }
            else if (brush is LinearGradientBrush)
            {
                LinearGradientBrush b = (brush as LinearGradientBrush);
                System.Drawing.Drawing2D.LinearGradientBrush lgb = new System.Drawing.Drawing2D.LinearGradientBrush(RectangleToNativeRectangleF(b.Bounds), ColorToNativeColor(b.ColorStops[0].Color), ColorToNativeColor(b.ColorStops[b.ColorStops.Count - 1].Color), LinearGradientBrushOrientationToLinearGradientMode(b.Orientation));
                if (b.ColorStops.Count > 2)
                {
                    List<System.Drawing.Color> colorList = new List<System.Drawing.Color>();
                    List<float> positionList = new List<float>();

                    for (int i = 0; i < b.ColorStops.Count; i++)
                    {
                        colorList.Add(ColorToNativeColor(b.ColorStops[i].Color));
                        positionList.Add((float)(b.ColorStops[i].Position.ConvertTo(MeasurementUnit.Decimal).Value));
                    }

                    System.Drawing.Drawing2D.ColorBlend blend = new System.Drawing.Drawing2D.ColorBlend(b.ColorStops.Count);
                    blend.Colors = colorList.ToArray();
                    blend.Positions = positionList.ToArray();
                    lgb.InterpolationColors = blend;
                }
                return lgb;
            }
            return null;
        }

 private void DrawRectangle(Brush brush, float width, float height, float lineWidth) {
     surfaceGraphics.FillRectangle(brush,
         -width / 2f - lineWidth,
         -height / 2f - lineWidth,
         width + 2f * lineWidth,
         height + 2f * lineWidth);
 }

 public Brush Set(Brush brush)
 {
     Sprite = brush.Sprite;
     Angle = brush.Angle;
     Scale = brush.Scale;
     return this;
 }

 private void GenerateImage(
     HttpResponse response,
     string textToInsert,
     int width,
     int height,
     Color backgroundColor,
     FontFamily fontFamily,
     float emSize,
     Brush brush,
     float x,
     float y,
     string contentType,
     ImageFormat imageFormat)
 {
     using (Bitmap bitmap = new Bitmap(width, height))
     {
         using (Graphics graphics = Graphics.FromImage(bitmap))
         {
             graphics.Clear(backgroundColor);
             graphics.DrawString(textToInsert, new Font(fontFamily, emSize), brush, x, y);
             response.ContentType = contentType;
             bitmap.Save(response.OutputStream, imageFormat);
         }
     }
 }

 public PerspexTextRenderer(
     RenderTarget target,
     Brush foreground)
 {
     this.renderTarget = target;
     this.foreground = foreground;
 }

		protected Element (Pen pen, Brush brush)
		{
			Id = "";
			Pen = pen;
			Brush = brush;
			Transform = NGraphics.Transform.Identity;
		}

 /// <summary>
 /// Initializes a new instance of the <see cref="RectangleRenderUnit" /> class.
 /// </summary>
 /// <param name="rectangle">The rectangle.</param>
 /// <param name="stroke">The stroke.</param>
 /// <param name="fill">The fill.</param>
 /// <param name="thickness">The thickness.</param>
 public RectangleRenderUnit(RectangleF rectangle, Brush stroke, Brush fill, float thickness)
 {
     this.rectangle = rectangle;
     this.stroke = stroke;
     this.fill = fill;
     this.thickness = thickness;
 }

 public Element(Pen pen, Brush brush)
 {
     Id = Guid.NewGuid ().ToString ();
     Pen = pen;
     Brush = brush;
     Transform = NGraphics.Transform.Identity;
 }