Silverlight 引路蜂二维图形库示例:矢量字体

引路蜂二维图形库支持矢量字体，包括中文和英文。对于Silverlight应用，由于访问权限的问题，字库一般需作为资源文件包含在应用中，对于英文字体不是个大问题，而对于中文字库，GB2312字库文件最小也要4M以上，所以尽量是用同一字体。引路蜂二维图形库绘制文字时是采用的矢量字库。也可以对文字内部进行填充。文字方向可以从左到右，从上到下，从右到左。

字体下载链接如下表：

字体大小下载Arial34KDownloadCourier New50KDownloadElephant52KDownloadImpact34KDownloadGeorgia53KDownloadRockwell35KDownloadTimes New Roman44KDownloadMicrosoft Sans Serif29KDownloadVerdana36KDownload幼圆5128KDownload新魏15874KDownload新宋体5740KDownload行楷13588KDownload宋体5740KDownload隶书7083KDownload仿宋8104KDownload黑体6108KDownload

下例使用行楷显示“引路蜂软件”。

private void FontDemo(){ TextureBrush brush1;   BitmapImage img = new BitmapImage(); img.CreateOptions = BitmapCreateOptions.None; string path = "/SilverlightGraphics2DDemo;component/brick.png"; Stream s = Application.GetResourceStream      (new Uri(path, UriKind.Relative)).Stream; img.SetSource(s); WriteableBitmap writeableBitmap = new WriteableBitmap(img); brush1 = new TextureBrush(writeableBitmap.Pixels,      img.PixelWidth, img.PixelHeight); Pen pen = new Pen(Color.Blue, 1);   path = "/SilverlightGraphics2DDemo;component/xingkai.fon"; int fontSize = 100; s = Application.GetResourceStream     (new Uri(path, UriKind.Relative)).Stream; s.Seek(0, SeekOrigin.Begin); //Clear the canvas with white color. graphics2D.Clear(Color.White); char[] longLine = null;   FontEx font = new FontEx(s); string guidebee = "引路蜂软件"; longLine = guidebee.ToCharArray(); graphics2D.SetPenAndBrush(pen,brush1); graphics2D.DrawChars(font, fontSize, longLine, 0, longLine.Length,  (screenWidth - fontSize) / 2, 20, FontEx.TextDirTb); int offset = 20; for (int i = 1; i < 4;i++ ) {  fontSize=100-i*20;  offset += fontSize+5;  graphics2D.DrawChars(font, fontSize, longLine, 0,   longLine.Length, (screenWidth - fontSize) / 2 - offset,        20, FontEx.TextDirTb);  graphics2D.DrawChars(font, fontSize, longLine, 0,   longLine.Length, (screenWidth - fontSize) / 2 + offset,   20, FontEx.TextDirTb);     }}

除了外挂字体外，引路蜂二维图形库自带了一个英文字库可以通过FontEx.GetSystemFont()取得。此外上述.fon 字体格式为引路蜂自定义，内部使用SVG来描述字体。和Windows中的字体格式不一致。