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 |
| Arial | 34K | Download |
| Courier New | 50K | Download |
| Elephant | 52K | Download |
| Impact | 34K | Download |
| Georgia | 53K | Download |
| Rockwell | 35K | Download |
| Times New Roman | 44K | Download |
| Microsoft Sans Serif | 29K | Download |
| Verdana | 36K | Download |
| 幼圆 | 5128K | Download |
| 新魏 | 15874K | Download |
| 新宋体 | 5740K | Download |
| 行楷 | 13588K | Download |
| 宋体 | 5740K | Download |
| 隶书 | 7083K | Download |
| 仿宋 | 8104K | Download |
| 黑体 | 6108K | Download |
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。