作公司门户网站，需要很多文字图片，采用程序生成，效果不错！
string word = "";
string fontSize;
string fontFamily = "RockWell";
Font font;
float emSizeInGU;
float ascentInGU;
float descentInGU;
float lineSpacingInGU;
Graphics g;
Bitmap img;
private void DrawImage()
{
MemoryStream ms = new MemoryStream();
img.Save(ms,ImageFormat.Gif);
Response.ClearContent();
Response.ContentType = "image/Gif";
Response.BinaryWrite(ms.ToArray());
g.Dispose();
img.Dispose();
Response.End();
}
private void CreateFontImage()
{
SizeF sf = GetWordSize();
RectangleF rf = new RectangleF(0,-descentInGU,sf.Width,sf.Height - descentInGU);
img = new Bitmap((int)sf.Width, (int)(sf.Height-2*descentInGU));
g = Graphics.FromImage(img);
StringFormat strf = new StringFormat();
strf.Alignment = StringAlignment.Far;
g.DrawString(word,font,Brushes.White,rf, strf);
DrawImage();
}
private SizeF GetWordSize()
{
Bitmap imgTemp;
int height = Convert.ToInt32(emSizeInGU * 1.5);
int width = Convert.ToInt32(word.Length * emSizeInGU);
imgTemp = new Bitmap(width,height);
Graphics graphics = Graphics.FromImage(imgTemp);
font = GetFont();
SizeF sf = graphics.MeasureString(word,font);
imgTemp.Dispose();
graphics.Dispose();
return sf;
}
private Font GetFont()
{
FontFamily ff = new FontFamily(fontFamily);
emSizeInGU = float.Parse(fontSize);
Font f = new Font(ff,emSizeInGU);
int emSizeInDU = ff.GetEmHeight(FontStyle.Regular);
int ascentInDU = ff.GetCellAscent(FontStyle.Regular);
int descentInDU = ff.GetCellDescent(FontStyle.Regular);
int lineSpacingInDU = ff.GetLineSpacing(FontStyle.Regular);
ascentInGU = ascentInDU*(emSizeInGU/emSizeInDU);
descentInGU = descentInDU*(emSizeInGU/emSizeInDU);
lineSpacingInGU = lineSpacingInDU*(emSizeInGU/emSizeInDU);
return f;
}
private void Page_Load(object sender, System.EventArgs e)
{
fontSize = HttpContext.Current.Request.QueryString["FontSize"];
if (fontSize == null || fontSize == string.Empty)
fontSize = "42";
emSizeInGU = float.Parse(fontSize);
word = HttpContext.Current.Request.QueryString["Word"];
if (word == null || word == string.Empty)
word = "Empty";
fontFamily = HttpContext.Current.Request.QueryString["FontFamily"];
if (fontFamily == null || fontFamily == string.Empty)
fontFamily = "RockWell";
CreateFontImage();
// 在此处放置用户代码以初始化页面
} string word = "";
string fontSize;
string fontFamily = "RockWell";
Font font;
float emSizeInGU;
float ascentInGU;
float descentInGU;
float lineSpacingInGU;
Graphics g;
Bitmap img;
private void DrawImage()
{
MemoryStream ms = new MemoryStream();
img.Save(ms,ImageFormat.Gif);
Response.ClearContent();
Response.ContentType = "image/Gif";
Response.BinaryWrite(ms.ToArray());
g.Dispose();
img.Dispose();
Response.End();
}
private void CreateFontImage()
{
SizeF sf = GetWordSize();
RectangleF rf = new RectangleF(0,-descentInGU,sf.Width,sf.Height - descentInGU);
img = new Bitmap((int)sf.Width, (int)(sf.Height-2*descentInGU));
g = Graphics.FromImage(img);
StringFormat strf = new StringFormat();
strf.Alignment = StringAlignment.Far;
g.DrawString(word,font,Brushes.White,rf, strf);
DrawImage();
}
private SizeF GetWordSize()
{
Bitmap imgTemp;
int height = Convert.ToInt32(emSizeInGU * 1.5);
int width = Convert.ToInt32(word.Length * emSizeInGU);
imgTemp = new Bitmap(width,height);
Graphics graphics = Graphics.FromImage(imgTemp);
font = GetFont();
SizeF sf = graphics.MeasureString(word,font);
imgTemp.Dispose();
graphics.Dispose();
return sf;
}
private Font GetFont()
{
FontFamily ff = new FontFamily(fontFamily);
emSizeInGU = float.Parse(fontSize);
Font f = new Font(ff,emSizeInGU);
int emSizeInDU = ff.GetEmHeight(FontStyle.Regular);
int ascentInDU = ff.GetCellAscent(FontStyle.Regular);
int descentInDU = ff.GetCellDescent(FontStyle.Regular);
int lineSpacingInDU = ff.GetLineSpacing(FontStyle.Regular);
ascentInGU = ascentInDU*(emSizeInGU/emSizeInDU);
descentInGU = descentInDU*(emSizeInGU/emSizeInDU);
lineSpacingInGU = lineSpacingInDU*(emSizeInGU/emSizeInDU);
return f;
}
private void Page_Load(object sender, System.EventArgs e)
{
fontSize = HttpContext.Current.Request.QueryString["FontSize"];
if (fontSize == null || fontSize == string.Empty)
fontSize = "42";
emSizeInGU = float.Parse(fontSize);
word = HttpContext.Current.Request.QueryString["Word"];
if (word == null || word == string.Empty)
word = "Empty";
fontFamily = HttpContext.Current.Request.QueryString["FontFamily"];
if (fontFamily == null || fontFamily == string.Empty)
fontFamily = "RockWell";
CreateFontImage();
// 在此处放置用户代码以初始化页面
}