带有轮廓和阴影的文本到图像asp.net c＃ [英] text to image with both outline and shadow asp.net c#
问题描述
我正在尝试使用asp.net c＃将文本转换为带有轮廓和阴影的图像但是失败了。如果有人知道请帮助我。
到目前为止我试过这个，但是这个代码我得到了阴影，但我没有得到大纲。有拉绳类我正在获得阴影和drawpath类我正在获得轮廓。但我想要轮廓和阴影。如果阴影即将来临轮廓不会来，反之亦然。
试试
{
lblwidth.Text = txtwidth.Text;
lblheight.Text = txtheight.Text;
string text = txttext.Text;
int textLength = text.Length;
int fontSize = 200;
int orientation = 1;
int antialias = 1;
//设置画布宽度&高度
int width;
int height;
if（orientation == 1）
{
width =（fontSize * textLength） - （（textLength * fontSize）/ 3）;
height = fontSize + 20;
}
else
{
width = fontSize + 20;
height =（int）（fontSize * textLength * 1.5）;
}
//初始化图形
Pen blackPen = new Pen（Color.Black， 5）;
RectangleF rectF = new RectangleF（0,0，width，height）;
Bitmap pic = new Bitmap（width，height，PixelFormat.Format24bppRgb）;
图形g = Graphics.FromImage（pic）;
g.SmoothingMode = SmoothingMode.AntiAlias;
if（antialias == 1）g.TextRenderingHint = TextRenderingHint.AntiAlias;
//设置颜色
string fgCol或= ddlMultiColor.SelectedItem.Text;
string bgColor =White;
颜色fontColor = Color.FromName（fgColor）;
颜色rectColor = Color.FromName（bgColor）;
SolidBrush fgBrush = new SolidBrush（fontColor）;
SolidBrush bgBrush = new SolidBrush（rectColor）;
//矩形还是椭圆？
int bound = 1;
if（bound == 1）
{
g.FillRectangle（bgBrush，rectF）;
}
else
{
g.FillRectangle（新的SolidBrush（Color.White），rectF）;
g.FillEllipse（bgBrush，rectF）;
}
////设置字体样式
FontStyle样式= FontStyle.Bold;
字体字体=新字体（ddlfont.SelectedItem .Text，fontSize，style，GraphicsUnit.Pixel）;
//设置字体方向和对齐方式
StringFormat format = new StringFormat（） ;
int reverse = 1;
if（reverse == 1 && orientation == 1）
{
format.FormatFlags = StringFormatFlags.DirectionRightToLeft;
}
else if（reverse == 1 && orientation> 1）
{
StringBuilder temp = new StringBuilder（）;
for（int i = textLength - 1; i> = 0;我 - ）
{
temp.Insert（（textLength - 1） - i，text [i]）;
}
text = temp.ToString（）;
}
if（orientation> 1）
{
rectF.X = width / 4;
rectF.Width = fontSize - （fontSize / 4）;
}
int alignment = 2;
if（alignment == 1）
{
format.Alignment = StringAlignment.Near;
}
else if（alignment == 2）
{
format.Alignment = StringAlignment.Center;
}
其他
{
format.Alignment = StringAlignment.Far;
}
format.LineAlignment = StringAlignment.Center;
//绘制任何阴影
int dropShadow = Convert.ToInt32（DropDownList1.SelectedValue）;
if（dropShadow> 0）
{
颜色shadowColor = Color.FromName（ddlMultiColor2.SelectedItem.Text）;
开关（dropShadow）
{
案例1：
rectF.Offset（-5，-5）;
g.DrawString（文本，字体，新的SolidBrush（shadowColor），rectF，格式）;
rectF.Offset（+ 5，+ 5）;
break;
案例2：
rectF.Offset（+ 5，-5）;
g.DrawString（text， font，new SolidBrush（shadowColor），rectF，format）;
rectF.Offset（-5，+ 5）;
break;
案例3：
rectF.Offset（-5，+ 5）;
g.DrawString（text，font，new Sol idBrush（shadowColor），rectF，format）;
rectF.Offset（+ 5，-5）;
break;
案例4：
rectF.Offset（+ 5，+ 5）;
g.DrawString（text，font，new SolidBrush（shadowColor），rectF ，格式）;
rectF.Offset（-5，-5）;
休息;
}
}
g.SmoothingMode = SmoothingMode.HighQuality;
/ / GraphicsPath fontpath = new GraphicsPath（）;
//fontpath.AddString(txttext.Text,new FontFamily（ddlfont.SelectedItem.Text），（int）FontStyle.Bold，200，new Point（0 ，0），StringFormat.GenericDefault）;
//颜色bor = Color.FromName（ddlMultiColor.SelectedItem.Text）;
/ ///刷br =（颜色）ddlMult iColor.SelectedItem.Text;
//g.FillPath(new SolidBrush（bor），fontpath）;
//g.DrawPath （新笔（Color.Black，10），fontpath）;
//最后，绘制字体
g.DrawString（text，font，fgBrush，rectF，format ）;
////Response.ContentType =image / jpeg;
////pic.Save(Response.OutputStream,ImageFormat.Jpeg）;
string fileName = text +.jpg;
pic.Save（Server.MapPath（〜/ images /）+ fileName，ImageFormat.Jpeg）;
imagetext.ImageUrl =〜/ images /+ fileName;
imagetext.Visible = true;
pic.Dispose（）;
}
catch（例外情况）
{
Response.Write（ex.Message）;
}
请参阅此CodeProject文章：大纲文本 [ ^ ]。
这与ASP.NET无关。一旦你可以在服务器端的位图上渲染你的图形，你就可以在你的页面上显示它。
-SA
I'm trying to convert text to image with both outline and shadow using asp.net c# but failed.If anyone knows please help me.
So far i tried this,but with this code i'm getting shadow but i'm not getting outline.With drawstring class i'm getting shadow and with drawpath class i'm getting outline.But i want both outline and shadow.Here if shadow is coming outline was not coming and viceversa.
try
{
lblwidth.Text = txtwidth.Text;
lblheight.Text = txtheight.Text;
string text = txttext.Text;
int textLength = text.Length;
int fontSize = 200;
int orientation = 1;
int antialias = 1;
// Set canvas width & height
int width;
int height;
if (orientation == 1)
{
width = (fontSize * textLength) - ((textLength * fontSize) / 3);
height = fontSize + 20;
}
else
{
width = fontSize + 20;
height = (int)(fontSize * textLength * 1.5);
}
// Initialize graphics
Pen blackPen = new Pen(Color.Black, 5);
RectangleF rectF = new RectangleF(0, 0, width, height);
Bitmap pic = new Bitmap(width, height, PixelFormat.Format24bppRgb);
Graphics g = Graphics.FromImage(pic);
g.SmoothingMode = SmoothingMode.AntiAlias;
if (antialias == 1) g.TextRenderingHint = TextRenderingHint.AntiAlias;
// Set colors
string fgColor = ddlMultiColor.SelectedItem.Text;
string bgColor = "White";
Color fontColor = Color.FromName(fgColor);
Color rectColor = Color.FromName(bgColor);
SolidBrush fgBrush = new SolidBrush(fontColor);
SolidBrush bgBrush = new SolidBrush(rectColor);
// Rectangle or ellipse?
int bound = 1;
if (bound == 1)
{
g.FillRectangle(bgBrush, rectF);
}
else
{
g.FillRectangle(new SolidBrush(Color.White), rectF);
g.FillEllipse(bgBrush, rectF);
}
//// Set font style
FontStyle style = FontStyle.Bold;
Font font = new Font(ddlfont.SelectedItem.Text, fontSize, style, GraphicsUnit.Pixel);
// Set font direction & alignment
StringFormat format = new StringFormat();
int reverse = 1;
if (reverse == 1 && orientation == 1)
{
format.FormatFlags = StringFormatFlags.DirectionRightToLeft;
}
else if (reverse == 1 && orientation > 1)
{
StringBuilder temp = new StringBuilder();
for (int i = textLength - 1; i >= 0; i--)
{
temp.Insert((textLength - 1) - i, text[i]);
}
text = temp.ToString();
}
if (orientation > 1)
{
rectF.X = width / 4;
rectF.Width = fontSize - (fontSize / 4);
}
int alignment = 2;
if (alignment == 1)
{
format.Alignment = StringAlignment.Near;
}
else if (alignment == 2)
{
format.Alignment = StringAlignment.Center;
}
else
{
format.Alignment = StringAlignment.Far;
}
format.LineAlignment = StringAlignment.Center;
// Draw any drop-shadow
int dropShadow = Convert.ToInt32(DropDownList1.SelectedValue);
if (dropShadow > 0)
{
Color shadowColor = Color.FromName(ddlMultiColor2.SelectedItem.Text);
switch (dropShadow)
{
case 1:
rectF.Offset(-5, -5);
g.DrawString(text, font, new SolidBrush(shadowColor), rectF, format);
rectF.Offset(+5, +5);
break;
case 2:
rectF.Offset(+5, -5);
g.DrawString(text, font, new SolidBrush(shadowColor), rectF, format);
rectF.Offset(-5, +5);
break;
case 3:
rectF.Offset(-5, +5);
g.DrawString(text, font, new SolidBrush(shadowColor), rectF, format);
rectF.Offset(+5, -5);
break;
case 4:
rectF.Offset(+5, +5);
g.DrawString(text, font, new SolidBrush(shadowColor), rectF, format);
rectF.Offset(-5, -5);
break;
}
}
g.SmoothingMode = SmoothingMode.HighQuality;
//GraphicsPath fontpath = new GraphicsPath();
//fontpath.AddString(txttext.Text, new FontFamily(ddlfont.SelectedItem.Text), (int)FontStyle.Bold, 200, new Point(0, 0), StringFormat.GenericDefault);
//Color bor = Color.FromName(ddlMultiColor.SelectedItem.Text);
////Brush br = (Color)ddlMultiColor.SelectedItem.Text;
//g.FillPath(new SolidBrush(bor), fontpath);
//g.DrawPath(new Pen(Color.Black, 10), fontpath);
// Finally, draw the font
g.DrawString(text, font, fgBrush, rectF, format);
////Response.ContentType = "image/jpeg";
////pic.Save(Response.OutputStream, ImageFormat.Jpeg);
string fileName = text + ".jpg";
pic.Save(Server.MapPath("~/images/") + fileName, ImageFormat.Jpeg);
imagetext.ImageUrl = "~/images/" + fileName;
imagetext.Visible = true;
pic.Dispose();
}
catch (Exception ex)
{
Response.Write(ex.Message);
}
Please see this CodeProject article: Outline Text[^].
This is not related to ASP.NET. Once you can render your graphics on a bitmap on the server side, you can show it on your page.
—SA
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