C# Font.MeasureText方法代码示例

		public static void DrawText(Font font, string text, int posX, int posY, Color color)
		{
			Rectangle rec = font.MeasureText(null, text, FontDrawFlags.Center);
			font.DrawText(null, text, posX + 1 + rec.X, posY + 1, Color.Black);
			font.DrawText(null, text, posX + rec.X, posY + 1, Color.Black);
			font.DrawText(null, text, posX - 1 + rec.X, posY - 1, Color.Black);
			font.DrawText(null, text, posX + rec.X, posY - 1, Color.Black);
			font.DrawText(null, text, posX + rec.X, posY, color);
		}

		private static Rectangle GetMeasured(Font font, string text) {
			Rectangle rec;
			var key = font.Description.FaceName + font.Description.Width + font.Description.Height +
					  font.Description.Weight + text;
			if (!Measured.TryGetValue(key, out rec))
			{
				rec = font.MeasureText(null, text, FontDrawFlags.Center);
				Measured.Add(key, rec);
			}
			return rec;
		}

 /// <summary>
 ///     Calculates the center position for the given text on within a rectangle boundaries.
 /// </summary>
 /// <param name="rectangle">Rectangle boundaries</param>
 /// <param name="sprite">Sprite which is being drawn on</param>
 /// <param name="font">Text Font</param>
 /// <param name="text">The Text</param>
 /// <param name="flags">Centered Flags</param>
 /// <returns>Returns the center position of the text on the rectangle.</returns>
 public static Vector2 GetCenteredText(
     this Rectangle rectangle, 
     Sprite sprite, 
     Font font, 
     string text, 
     CenteredFlags flags)
 {
     return font == null
                ? rectangle.GetCenteredText(sprite, text, flags)
                : rectangle.GetCenter(sprite, font.MeasureText(sprite, text, 0), flags);
 }

        static void Main()
        {
            var form = new RenderForm("SharpDX - Direct3D9 Font Sample");
            int width = form.ClientSize.Width;
            int height = form.ClientSize.Height;
            var device = new Device(new Direct3D(), 0, DeviceType.Hardware, form.Handle, CreateFlags.HardwareVertexProcessing, new PresentParameters(width, height) { PresentationInterval = PresentInterval.One });

            // Initialize the Font
            FontDescription fontDescription = new FontDescription()
            {
                Height = 72,
                Italic = false,
                CharacterSet = FontCharacterSet.Ansi,
                FaceName = "Arial",
                MipLevels = 0,
                OutputPrecision = FontPrecision.TrueType,
                PitchAndFamily = FontPitchAndFamily.Default,
                Quality = FontQuality.ClearType,
                Weight = FontWeight.Bold
            };



            var font = new Font(device, fontDescription);

            var displayText = "Direct3D9 Text!";

            // Measure the text to display
            var fontDimension = font.MeasureText(null, displayText, new Rectangle(0, 0, width, height), FontDrawFlags.Center | FontDrawFlags.VerticalCenter);

            int xDir = 1;
            int yDir = 1;

            RenderLoop.Run(form, () =>
            {
                device.Clear(ClearFlags.Target, Color.Black, 1.0f, 0);
                device.BeginScene();

                // Make the text boucing on the screen limits
                if ((fontDimension.Right + xDir) > width)
                    xDir = -1;
                else if ((fontDimension.Left + xDir) <= 0)
                    xDir = 1;

                if ((fontDimension.Bottom + yDir) > height)
                    yDir = -1;
                else if ((fontDimension.Top + yDir) <= 0)
                    yDir = 1;

                fontDimension.Left += (int)xDir;
                fontDimension.Top += (int)yDir;
                fontDimension.Bottom += (int)yDir;
                fontDimension.Right += (int)xDir;

                // Draw the text
                font.DrawText(null, displayText, fontDimension, FontDrawFlags.Center | FontDrawFlags.VerticalCenter, Color.White);

                device.EndScene();
                device.Present();
            });
        }

 public static void DrawText(Font font, String text, int posX, int posY, Color color)
 {
     if (font == null || font.IsDisposed)
     {
         throw new SharpDXException("");
         return;
     }
     Rectangle rec = font.MeasureText(null, text, FontDrawFlags.Center);
     font.DrawText(null, text, posX + 1 + rec.X, posY, Color.Black);
     font.DrawText(null, text, posX + 1 + rec.X, posY + 1, Color.Black);
     font.DrawText(null, text, posX + rec.X, posY + 1, Color.Black);
     font.DrawText(null, text, posX - 1 + rec.X, posY, Color.Black);
     font.DrawText(null, text, posX - 1 + rec.X, posY - 1, Color.Black);
     font.DrawText(null, text, posX + rec.X, posY - 1, Color.Black);
     font.DrawText(null, text, posX + rec.X, posY, color);
 }

 public static void DrawText(Font font, String text, int posX, int posY, Color color)
 {
     Rectangle rec = font.MeasureText(null, text, FontDrawFlags.Center);
     font.DrawText(null, text, posX + 1 + rec.X, posY + 1, SharpColor.White);
 }

 public UpvoteItem(string name)
 {
     _text = string.Format("Please consider to upvote {0} in the Assembly Database.", name);
     _font = new Font(
         Drawing.Direct3DDevice,
         new FontDescription
         {
             FaceName = "Calibri",
             Height = 20,
             OutputPrecision = FontPrecision.Default,
             Quality = FontQuality.Default
         });
     _measured = _font.MeasureText(null, _text, FontDrawFlags.Center);
     _line = new Line(Drawing.Direct3DDevice) { Width = _measured.Height + (Padding * 2) };
 }