GDI+ 实现 合成艺术字，并使艺术字透明
1.Default.aspx 前台HTML源码，调用了3个js，实现自动选择颜色的功能
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="WebFont.Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>无标题页</title>
<style>
body
{
font-size: 14px;
}
</style>
<script type="text/javascript" src="veryide.core.js"></script>
<script type="text/javascript" src="veryide.library.js"></script>
<script type="text/javascript" src="veryide.color.js"></script>
</head>
<body>
<form id="form1" runat="server">
<div><div style="visibility:hidden;"><input name="sel1" visible="false" id="sel1" type="text" onfocus="VeryIDE.Color(this)" style="vertical-align:middle;" />
<input name="sel2" visible="false" id="sel2" type="text" onfocus="VeryIDE.Color(this)" style="vertical-align:middle;" />
<input name="sel3" visible="false" id="sel3" type="text" onfocus="VeryIDE.Color(this)" style="vertical-align:middle;" />
<input name="sel4" visible="false" id="sel4" type="text" onfocus="VeryIDE.Color(this)" style="vertical-align:middle;" /></div>
<table width="750" border="0" cellspacing="0" cellpadding="0" align="center" border="1">
<tr>
<td width="150" height="25">
字体：
</td>
<td>
<asp:DropDownList ID="dl_fontStyle" runat="server">
<asp:ListItem>微软雅黑</asp:ListItem>
<asp:ListItem>方正舒体</asp:ListItem>
<asp:ListItem>方正琥珀简体</asp:ListItem>
<asp:ListItem>方正华隶简体</asp:ListItem>
<asp:ListItem>方正黄草简体</asp:ListItem>
<asp:ListItem Selected="True">方正超粗黑简体</asp:ListItem>
<asp:ListItem>汉仪醒示体简</asp:ListItem>
<asp:ListItem>汉仪雪峰体简</asp:ListItem>
<asp:ListItem>汉仪篆书繁</asp:ListItem>
<asp:ListItem>华文彩云</asp:ListItem>
<asp:ListItem>华文细黑</asp:ListItem>
<asp:ListItem>华文新魏</asp:ListItem>
<asp:ListItem>华文行楷</asp:ListItem>
<asp:ListItem>黑体</asp:ListItem>
<asp:ListItem>隶书</asp:ListItem>
<asp:ListItem>宋体</asp:ListItem>
<asp:ListItem>楷体</asp:ListItem>
<asp:ListItem>幼圆</asp:ListItem>
<asp:ListItem>仿宋</asp:ListItem>
</asp:DropDownList>
字体大小：<asp:DropDownList ID="dl_fontSize" runat="server">
<asp:ListItem>10</asp:ListItem>
<asp:ListItem>20</asp:ListItem>
<asp:ListItem Selected="True">30</asp:ListItem>
<asp:ListItem>40</asp:ListItem>
<asp:ListItem>50</asp:ListItem>
<asp:ListItem>60</asp:ListItem>
<asp:ListItem>70</asp:ListItem>
<asp:ListItem>80</asp:ListItem>
<asp:ListItem>90</asp:ListItem>
</asp:DropDownList>
</td>
</tr>
<tr>
<td width="150" height="25">
输入文字：
</td>
<td>
<asp:TextBox ID="tbWord" runat="server" Width="235px" MaxLength="100">特效文字</asp:TextBox>
</td>
</tr>
<tr>
<td width="150" height="25">
文字样式：
</td>
<td>
<img src="spacer.gif" alt="选择颜色" id="test" runat="server" style="border:#ccc solid 1px;width:20px;height:20px;vertical-align:middle;" onclick="VeryIDE.Color(this,$('sel1'))" />
<%-- <asp:DropDownList ID="DropDownList2" runat="server">
<asp:ListItem>红色</asp:ListItem>
<asp:ListItem>黄色</asp:ListItem>
<asp:ListItem>蓝色</asp:ListItem>
<asp:ListItem>绿色</asp:ListItem>
<asp:ListItem>黑色</asp:ListItem>
<asp:ListItem>白色</asp:ListItem>
</asp:DropDownList>--%>
</td>
</tr>
<tr>
<td width="150" height="25">
特效：
</td>
<td>
<asp:DropDownList ID="dl_tx" runat="server" AutoPostBack="True"
onselectedindexchanged="dl_tx_SelectedIndexChanged">
<asp:ListItem Value="0">无特效</asp:ListItem>
<asp:ListItem Value="1">投影</asp:ListItem>
<asp:ListItem Value="2">立体</asp:ListItem>
<asp:ListItem Value="3">浮雕</asp:ListItem>
<asp:ListItem Value="4">描边</asp:ListItem>
</asp:DropDownList>
</td>
</tr>
<tr id="mb" runat="server" visible="false"><td>描边颜色：</td><td><img src="spacer.gif" alt="选择颜色" id="Img3" runat="server" style="border:#ccc solid 1px;width:20px;height:20px;vertical-align:middle;" onclick="VeryIDE.Color(this,$('sel4'))" /></td></tr>
<tr id="mytx" runat="server" visible="false">
<td width="150" height="25">
特效颜色：(阴影颜色)
</td>
<td>
<img src="spacer.gif" alt="选择颜色" id="Img2" runat="server" style="border:#ccc solid 1px;width:20px;height:20px;vertical-align:middle;" onclick="VeryIDE.Color(this,$('sel2'))" />
<%-- <asp:DropDownList ID="dl_txcolor" runat="server">
<asp:ListItem>红色</asp:ListItem>
<asp:ListItem>黄色</asp:ListItem>
<asp:ListItem>蓝色</asp:ListItem>
<asp:ListItem>绿色</asp:ListItem>
<asp:ListItem>黑色</asp:ListItem>
<asp:ListItem>白色</asp:ListItem>
</asp:DropDownList>--%>
厚度：<asp:DropDownList ID="dl_txhd" runat="server">
<asp:ListItem>1</asp:ListItem>
<asp:ListItem>2</asp:ListItem>
<asp:ListItem>3</asp:ListItem>
<asp:ListItem>4</asp:ListItem>
<asp:ListItem>5</asp:ListItem>
<asp:ListItem>6</asp:ListItem>
<asp:ListItem>7</asp:ListItem>
<asp:ListItem>8</asp:ListItem>
<asp:ListItem>9</asp:ListItem>
<asp:ListItem>10</asp:ListItem>
<asp:ListItem>11</asp:ListItem>
<asp:ListItem>12</asp:ListItem>
<asp:ListItem>13</asp:ListItem>
<asp:ListItem>14</asp:ListItem>
<asp:ListItem>15</asp:ListItem>
<asp:ListItem>16</asp:ListItem>
<asp:ListItem>17</asp:ListItem>
<asp:ListItem>18</asp:ListItem>
<asp:ListItem>19</asp:ListItem>
<asp:ListItem>20</asp:ListItem>
</asp:DropDownList>
角度：<asp:DropDownList ID="dl_txjd" runat="server">
<asp:ListItem Value="0">右下角</asp:ListItem>
<asp:ListItem Value="1">左上角</asp:ListItem>
<asp:ListItem Value="2">右上角</asp:ListItem>
<asp:ListItem Value="3">左下角</asp:ListItem>
</asp:DropDownList>
</td>
</tr>
<tr>
<td width="150" height="25">
背景样式：
</td>
<td>
<asp:DropDownList ID="dl_bgStyle" runat="server" AutoPostBack="True"
onselectedindexchanged="dl_bgStyle_SelectedIndexChanged">
<asp:ListItem Value="1">透明</asp:ListItem>
<asp:ListItem Value="2">纯色</asp:ListItem>
</asp:DropDownList>
</td>
</tr>
<tr id="bgColor" runat="server" visible="false">
<td width="150" height="25">
背景颜色：
</td>
<td>
<img src="spacer.gif" alt="选择颜色" id="Img1" runat="server" style="border:#ccc solid 1px;width:20px;height:20px;vertical-align:middle;" onclick="VeryIDE.Color(this,$('sel3'))" />
<%--<asp:DropDownList ID="dl_bgColor" runat="server">
<asp:ListItem>红色</asp:ListItem>
<asp:ListItem>黄色</asp:ListItem>
<asp:ListItem>蓝色</asp:ListItem>
<asp:ListItem>绿色</asp:ListItem>
<asp:ListItem>黑色</asp:ListItem>
<asp:ListItem>白色</asp:ListItem>
</asp:DropDownList>--%>
</td>
</tr>
<tr>
<td width="150" height="25">
预览：
</td>
<td style="background-color:Gray;">
<asp:Image ID="Image1" runat="server" Visible="false" />
</td>
</tr>
<tr>
<td width="150" height="25">
</td>
<td>
<asp:Button ID="btn" runat="server" Text="提交" OnClick="btn_Click" Width="84px" />
</td>
</tr>
</table>
</div>
</form>
</body>
</html>
2.Default.aspx 后台源码
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;
using System.IO;
protected void btn_Click(object sender, EventArgs e)
{
string fontcolor = Request["sel1"];
string fontshadecolor = Request["sel2"];//阴影颜色
string bgcolor = Request["sel3"];//背景颜色
string mbcolor = Request["sel4"];//描边颜色
Color fc=Color.Black;//字体颜色
Color shadecolor=Color.Red;//阴影颜色
Color bgColor=Color.White;//背景颜色
Color mbColor = Color.YellowGreen;//描边颜色
System.Drawing.ColorConverter c = new ColorConverter();
if (fontcolor != "")
{
fc = (System.Drawing.Color)c.ConvertFromString(fontcolor);//字体颜色
}
if (fontshadecolor != "")
{
shadecolor = (System.Drawing.Color)c.ConvertFromString(fontshadecolor);// 阴影颜色
}
if (bgcolor != "")
{
bgColor = (System.Drawing.Color)c.ConvertFromString(bgcolor);//背景颜色
}
if (mbcolor != "")
{
mbColor = (System.Drawing.Color)c.ConvertFromString(mbcolor);//描边颜色
}
string fontName = dl_fontStyle.SelectedValue.ToString();//字体名称
int fontSize = Int32.Parse(dl_fontSize.SelectedItem.Text);//字体大小
string fontText = tbWord.Text.Trim();//输入的文字
int shadewidth = Int32.Parse(dl_txhd.SelectedItem.Text);//阴影厚度
int shadejd = Int32.Parse(dl_txjd.SelectedValue.ToString());//阴影角度
int tx = 0;//特效效果 默认无特效
tx = Int32.Parse(dl_tx.SelectedValue.ToString());//特效效果
int bgstyle = Int32.Parse(dl_bgStyle.SelectedValue.ToString());//背景样式
float bmpWidth = 100, bmpHeight = 100;//生成图片的大小 根据字的宽度计算出来
//**********************以下是计算字符串的宽度，高度，不是长度********************************************************//
Bitmap bm = new Bitmap(250, 130, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
Font font = new Font(fontName, fontSize);
Graphics g = Graphics.FromImage(bm);
SizeF textSize;
textSize = g.MeasureString(fontText, font);
bmpWidth = textSize.Width+10;//字符串宽度
bmpHeight = textSize.Height+10;//字符串高度
// Response.Write("宽度:" + bmpWidth.ToString() + "<br/>高度是：" + bmpHeight.ToString() + "<br>长度是:" + fontText.Length.ToString());
//***************************************************************************//
string rev = "";
switch (tx)
{
case 0://无特效
rev=ImageArt.无特效(bmpWidth, bmpHeight, fontName, fontSize, fc, bgstyle, bgColor, fontText);
break;
case 1://投影
rev = ImageArt.投影(bmpWidth, bmpHeight, fontName, fontSize, fc, bgstyle, bgColor, fontText, shadecolor, shadewidth, shadejd);
break;
case 2://立体
rev = ImageArt.立体(bmpWidth, bmpHeight, fontName, fontSize, fc, bgstyle, bgColor, fontText, shadecolor, shadewidth, shadejd);
break;
case 3://浮雕
rev = ImageArt.浮雕(bmpWidth, bmpHeight, fontName, fontSize, fc, bgstyle, bgColor, fontText);
break;
case 4:
rev = ImageArt.描边(bmpWidth, bmpHeight, fontName, fontSize, fc, bgstyle, bgColor, fontText,mbColor);
break;
}
string path = Server.MapPath("upload/");
if (rev != "")
{
Image1.Visible = true;
Image1.ImageUrl = path + "\\" + rev;
}
}
#region
protected void dl_tx_SelectedIndexChanged(object sender, EventArgs e)
{
if (dl_tx.SelectedValue.ToString() == "1" || dl_tx.SelectedValue.ToString() == "2")
{
mytx.Visible = true;
}
else
{
mytx.Visible = false;
}
if (dl_tx.SelectedValue.ToString() == "4")
{
mb.Visible = true;
}
else
{
mb.Visible = false;
}
}
protected void dl_bgStyle_SelectedIndexChanged(object sender, EventArgs e)
{
if (dl_bgStyle.SelectedValue == "2")
{
bgColor.Visible = true;
}
else
{
bgColor.Visible = false;
}
}
#endregion
3.合成艺术字类ImageArt.cs
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;
using System.IO;
using System.Text;
using System.Drawing.Text;
/// <summary>
/// 實現文字描邊
/// </summary>
/// <param name="words">文字</param>
/// <param name="font">字體</param>
/// <param name="wordColor">文字顏色</param>
/// <param name="bordColor">邊框顏色</param>
/// <returns>合成后圖片</returns>
public static Bitmap DrawWords(String words, Font font, Color wordColor, Color bordColor, int bgStyle,Color bgColor)
{
Graphics g = Graphics.FromImage(new Bitmap(10, 10));
SizeF size = g.MeasureString(words, font);
Bitmap bmp = new Bitmap((int)size.Width + 2, (int)size.Height + 2);
g = Graphics.FromImage(bmp);
if (bgStyle == 1)//透明
{
g.Clear(Color.White); //赋予图像一个背景色
}
else
{
g.Clear(bgColor);//背景色
}
SolidBrush brush = new SolidBrush(wordColor);
g.DrawString(words, font, brush, new PointF(1, 1));
brush.Dispose();
g.Dispose();
GC.Collect();
for (int i = 0; i < bmp.Width; i++)
{
for (int j = 0; j < bmp.Height; j++)
{
if (!ColorEquals(bmp.GetPixel(i, j), wordColor))
{
if (i < bmp.Width - 1 && j < bmp.Height - 1)
{
if (ColorEquals(bmp.GetPixel(i + 1, j), wordColor) || ColorEquals(bmp.GetPixel(i, j + 1), wordColor) || ColorEquals(bmp.GetPixel(i + 1, j + 1), wordColor))
{
bmp.SetPixel(i, j, bordColor);
}
}
if (i > 0 && j > 0)
{
if (ColorEquals(bmp.GetPixel(i - 1, j), wordColor) || ColorEquals(bmp.GetPixel(i, j - 1), wordColor) || ColorEquals(bmp.GetPixel(i - 1, j - 1), wordColor))
{
bmp.SetPixel(i, j, bordColor);
}
}
}
}
}
return bmp;
}
private static bool ColorEquals(Color c1, Color c2)
{
if (c1.A != c2.A)
return false;
if (c1.R != c2.R)
return false;
if (c1.G != c2.G)
return false;
if (c1.B != c2.B)
return false;
return true;
}
#region 描边
#region 描边
public static string 描边(float bmpWidth, float bmpHeight, string fontName, int fontSize, Color fontColor, int bgStyle, Color bgColor, string fontText,Color mbColor)
{
Font font = new Font(fontName, fontSize, FontStyle.Bold);
Bitmap bm = DrawWords(fontText, font, fontColor, mbColor, bgStyle, bgColor);
//********************************保存图片****************************//
//设置保存路径
string now = DateTime.Now.ToString("yyyyMMddHHmmssffff");
string revImg = now + "1.GIF";
string path = System.Web.HttpContext.Current.Server.MapPath("upload/");
if (!Directory.Exists(path)) Directory.CreateDirectory(path);
bm.Save(System.Web.HttpContext.Current.Server.MapPath("upload/" + now + ".GIF"), System.Drawing.Imaging.ImageFormat.Gif);
bm.Dispose();
if (bgStyle == 1)
{
//处理透明
//*************开始处理背景透明**********************//
Bitmap bm3 = (Bitmap)System.Drawing.Image.FromFile(path + "\\" + now + ".GIF");
Bitmap bm4 = ImageToTrans.MakeTransparentGif(bm3, Color.White);
if (!Directory.Exists(path)) Directory.CreateDirectory(path);
bm4.Save(System.Web.HttpContext.Current.Server.MapPath("upload/" + revImg), System.Drawing.Imaging.ImageFormat.Gif);
bm4.Dispose();
bm3.Dispose();
if (File.Exists(path + "\\" + now + ".GIF"))
{
File.Delete(path + "\\" + now + ".GIF");
}
}
else
{
//纯色
revImg = now + ".GIF";
}
//*************************************************//
return revImg;
}
#endregion
#region 浮雕效果
/// <summary>
/// 浮雕效果
/// </summary>
/// <param name="bmpWidth"></param>
/// <param name="bmpHeiht"></param>
/// <param name="fontName"></param>
/// <param name="fontSize"></param>
/// <param name="fontColor"></param>
/// <param name="bgStyle"></param>
/// <param name="bgColor"></param>
/// <param name="fontText"></param>
/// <returns></returns>
public static string 浮雕(float bmpWidth, float bmpHeight, string fontName, int fontSize, Color fontColor, int bgStyle, Color bgColor, string fontText)
{
Bitmap bm = new Bitmap(Convert.ToInt32(bmpWidth), Convert.ToInt32(bmpHeight), System.Drawing.Imaging.PixelFormat.Format32bppArgb);
//Color backcolor = bm.GetPixel(1, 1);
//bm.MakeTransparent(backcolor);
Brush backBrush = new SolidBrush(Color.Black);
Brush foreBrush = new SolidBrush(fontColor);
Font font = new Font(fontName, Convert.ToInt16(fontSize), FontStyle.Bold);
Graphics g = Graphics.FromImage(bm);
g.Clear(bgColor);
g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.SingleBitPerPixel;
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
g.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
string text = fontText.Trim();
SizeF size = g.MeasureString(text, font);
Single posX = (Convert.ToInt32(bmpWidth) - Convert.ToInt32(size.Width)) / 2;
Single posY = (Convert.ToInt32(bmpHeight) - Convert.ToInt32(size.Height)) / 2;
g.DrawString(text, font, backBrush, posX + 3, posY + 3);
g.DrawString(text, font, foreBrush, posX, posY);
//********************************保存图片****************************//
//设置保存路径
string now = DateTime.Now.ToString("yyyyMMddHHmmssffff");
string revImg = now + "1.GIF";
string path = System.Web.HttpContext.Current.Server.MapPath("upload/");
if (!Directory.Exists(path)) Directory.CreateDirectory(path);
bm.Save(System.Web.HttpContext.Current.Server.MapPath("upload/" + now + ".GIF"), System.Drawing.Imaging.ImageFormat.Gif);
bm.Dispose();
if (bgStyle == 1)
{
//处理透明
//*************开始处理背景透明**********************//
Bitmap bm3 = (Bitmap)System.Drawing.Image.FromFile(path + "\\" + now + ".GIF");
Bitmap bm4 = ImageToTrans.MakeTransparentGif(bm3, bgColor);
if (!Directory.Exists(path)) Directory.CreateDirectory(path);
bm4.Save(System.Web.HttpContext.Current.Server.MapPath("upload/" + revImg), System.Drawing.Imaging.ImageFormat.Gif);
bm4.Dispose();
bm3.Dispose();
if (File.Exists(path + "\\" + now + ".GIF"))
{
File.Delete(path + "\\" + now + ".GIF");
}
}
else
{
//纯色
revImg = now + ".GIF";
}
//*************************************************//
return revImg;
}
#endregion
#region 浮雕效果
/// <summary>
/// 浮雕效果
/// </summary>
/// <param name="bmpWidth"></param>
/// <param name="bmpHeiht"></param>
/// <param name="fontName"></param>
/// <param name="fontSize"></param>
/// <param name="fontColor"></param>
/// <param name="bgStyle"></param>
/// <param name="bgColor"></param>
/// <param name="fontText"></param>
/// <returns></returns>
public static string 浮雕(float bmpWidth, float bmpHeight, string fontName, int fontSize, Color fontColor, int bgStyle, Color bgColor, string fontText)
{
Bitmap bm = new Bitmap(Convert.ToInt32(bmpWidth), Convert.ToInt32(bmpHeight), System.Drawing.Imaging.PixelFormat.Format32bppArgb);
//Color backcolor = bm.GetPixel(1, 1);
//bm.MakeTransparent(backcolor);
Brush backBrush = new SolidBrush(Color.Black);
Brush foreBrush = new SolidBrush(fontColor);
Font font = new Font(fontName, Convert.ToInt16(fontSize), FontStyle.Bold);
Graphics g = Graphics.FromImage(bm);
g.Clear(bgColor);
g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.SingleBitPerPixel;
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
g.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
string text = fontText.Trim();
SizeF size = g.MeasureString(text, font);
Single posX = (Convert.ToInt32(bmpWidth) - Convert.ToInt32(size.Width)) / 2;
Single posY = (Convert.ToInt32(bmpHeight) - Convert.ToInt32(size.Height)) / 2;
g.DrawString(text, font, backBrush, posX + 3, posY + 3);
g.DrawString(text, font, foreBrush, posX, posY);
//********************************保存图片****************************//
//设置保存路径
string now = DateTime.Now.ToString("yyyyMMddHHmmssffff");
string revImg = now + "1.GIF";
string path = System.Web.HttpContext.Current.Server.MapPath("upload/");
if (!Directory.Exists(path)) Directory.CreateDirectory(path);
bm.Save(System.Web.HttpContext.Current.Server.MapPath("upload/" + now + ".GIF"), System.Drawing.Imaging.ImageFormat.Gif);
bm.Dispose();
if (bgStyle == 1)
{
//处理透明
//*************开始处理背景透明**********************//
Bitmap bm3 = (Bitmap)System.Drawing.Image.FromFile(path + "\\" + now + ".GIF");
Bitmap bm4 = ImageToTrans.MakeTransparentGif(bm3, bgColor);
if (!Directory.Exists(path)) Directory.CreateDirectory(path);
bm4.Save(System.Web.HttpContext.Current.Server.MapPath("upload/" + revImg), System.Drawing.Imaging.ImageFormat.Gif);
bm4.Dispose();
bm3.Dispose();
if (File.Exists(path + "\\" + now + ".GIF"))
{
File.Delete(path + "\\" + now + ".GIF");
}
}
else
{
//纯色
revImg = now + ".GIF";
}
//*************************************************//
return revImg;
}
#endregion
#region 立体效果
/// <summary>
/// 立体效果图
/// </summary>
/// <param name="bmpWidth">画布宽度</param>
/// <param name="bmpHeight">画布高度</param>
/// <param name="fontName">字体名称</param>
/// <param name="fontSize">字体大小</param>
/// <param name="fontColor">字体颜色</param>
/// <param name="bgStyle">字体样式</param>
/// <param name="bgColor">背景颜色</param>
/// <param name="fontText">输入的字体</param>
/// <param name="shadeColor">阴影颜色</param>
/// <param name="shadeHd">阴影厚度</param>
/// <param name="shadeJd">阴影角度</param>
/// <returns></returns>
public static string 立体(float bmpWidth, float bmpHeight, string fontName, int fontSize, Color fontColor, int bgStyle, Color bgColor, string fontText, Color shadeColor, int shadeHd, int shadeJd)
{
Bitmap bm = new Bitmap(Convert.ToInt32(bmpWidth), Convert.ToInt32(bmpHeight), System.Drawing.Imaging.PixelFormat.Format32bppArgb);
int i = 0;
Brush backBrush = new SolidBrush(shadeColor);//阴影画刷
Brush foreBrush = new SolidBrush(fontColor);
Font font = new Font(fontName, System.Convert.ToInt16(fontSize), FontStyle.Regular);
Graphics g = Graphics.FromImage(bm);
g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.SingleBitPerPixel;
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
g.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
if (bgStyle == 1)//透明
{
g.Clear(Color.White); //赋予图像一个背景色
}
else
{
g.Clear(bgColor);//背景色
}
SizeF size = g.MeasureString(fontText, font);
Single posX = (Convert.ToInt32(bmpWidth) - Convert.ToInt16(size.Width)) / 2;
Single posY = (Convert.ToInt32(bmpHeight) - Convert.ToInt16(size.Height)) / 3;
//左下角
//********************************************//
while (i < Convert.ToInt16(shadeHd))//20
{
//g.DrawString(text, font, backBrush, posX - i, posY + i);//左下角
//g.DrawString(text, font, backBrush, posX - i, posY - i);//左上角
// g.DrawString(text, font, backBrush, posX + i, posY - i);//右上角
if (shadeJd == 0)//右下角
{
g.DrawString(fontText, font, backBrush, posX + i, posY + i);//右下角
}
else if (shadeJd == 1)//左上角
{
g.DrawString(fontText, font, backBrush, posX - i, posY - i);//左上角
}
else if (shadeJd == 2)//右上角
{
g.DrawString(fontText, font, backBrush, posX + i, posY - i);//右上角
}
else if (shadeJd == 3)//左下角
{
g.DrawString(fontText, font, backBrush, posX - i, posY + i);//左下角
}
i = i + 1;
}
//******************************************//
g.DrawString(fontText, font, foreBrush, posX, posY);
g.Dispose();
//********************************保存图片****************************//
//设置保存路径
string now = DateTime.Now.ToString("yyyyMMddHHmmssffff");
string revImg = now + "1.GIF";
string path = System.Web.HttpContext.Current.Server.MapPath("upload/");
if (!Directory.Exists(path)) Directory.CreateDirectory(path);
bm.Save(System.Web.HttpContext.Current.Server.MapPath("upload/" + now + ".GIF"), System.Drawing.Imaging.ImageFormat.Gif);
bm.Dispose();
if (bgStyle == 1)
{
//处理透明
//*************开始处理背景透明**********************//
Bitmap bm3 = (Bitmap)System.Drawing.Image.FromFile(path + "\\" + now + ".GIF");
Bitmap bm4 = ImageToTrans.MakeTransparentGif(bm3, Color.White);
if (!Directory.Exists(path)) Directory.CreateDirectory(path);
bm4.Save(System.Web.HttpContext.Current.Server.MapPath("upload/" + revImg), System.Drawing.Imaging.ImageFormat.Gif);
bm4.Dispose();
bm3.Dispose();
if (File.Exists(path + "\\" + now + ".GIF"))
{
File.Delete(path + "\\" + now + ".GIF");
}
}
else
{
//纯色
revImg = now + ".GIF";
}
//*************************************************//
return revImg;
}
#endregion
#region 投影各种效果
/// <summary>
/// 投影效果艺术字
/// </summary>
/// <param name="bmpWidth">图片宽度</param>
/// <param name="bmpHeight">图片高度</param>
/// <param name="fontName">字体名称</param>
/// <param name="fontSize">字体大小</param>
/// <param name="fontColor">字体颜色</param>
/// <param name="bgStyle">背景样式</param>
/// <param name="bgColor">背景颜色</param>
/// <param name="fontText">输入的文字</param>
/// <param name="shadeColor">阴影颜色</param>
/// <param name="shadeHd">阴影厚度</param>
/// <param name="shadeJd">阴影角度</param>
/// <returns></returns>
public static string 投影(float bmpWidth,float bmpHeight,string fontName,int fontSize,Color fontColor,int bgStyle,Color bgColor,string fontText,Color shadeColor,int shadeHd,int shadeJd)
{
//先画一个矩形画布
RectangleF rectF = new RectangleF(10, 10, bmpWidth, bmpHeight);
Bitmap bm = new Bitmap(Convert.ToInt32(bmpWidth), Convert.ToInt32(bmpHeight), PixelFormat.Format32bppArgb);
Font font = new Font(fontName, fontSize, FontStyle.Bold);
Graphics g = Graphics.FromImage(bm);
g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.SingleBitPerPixel;
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
g.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
if (bgStyle == 1)//透明
{
g.Clear(Color.White); //赋予图像一个背景色
}
else
{
g.Clear(bgColor);//背景色
}
SolidBrush fgBrush = new SolidBrush(fontColor);//字体画刷
SolidBrush bgBrush = new SolidBrush(bgColor);//背景画刷
StringFormat format = new StringFormat();
format.Alignment=StringAlignment.Near;
g.FillRectangle(bgBrush, rectF);
int shadejd = shadeJd;//阴影角度
int shadehd = shadeHd;//阴影厚度
if (shadejd == 0)//右下角
{
rectF.Offset(+shadehd, +shadehd);
g.DrawString(fontText, font, new SolidBrush(shadeColor), rectF, format);
rectF.Offset(-shadehd, -shadehd);
}
else if (shadejd == 1)//左上角
{
rectF.Offset(-shadehd, -shadehd);
g.DrawString(fontText, font, new SolidBrush(shadeColor), rectF, format);
rectF.Offset(+shadehd, +shadehd);
}
else if (shadejd == 2)//右上角
{
rectF.Offset(+shadehd, -shadehd);
g.DrawString(fontText, font, new SolidBrush(shadeColor), rectF, format);
rectF.Offset(-shadehd, +shadehd);
}
else if(shadejd==3)//左下角
{
rectF.Offset(-shadehd, +shadehd);
g.DrawString(fontText, font, new SolidBrush(shadeColor), rectF, format);
rectF.Offset(+shadehd, -shadehd);
}
g.DrawString(fontText, font, fgBrush, rectF, format);
g.Dispose();
//********************************保存图片****************************//
//设置保存路径
string now = DateTime.Now.ToString("yyyyMMddHHmmssffff");
string revImg = now + "1.GIF";
string path = System.Web.HttpContext.Current.Server.MapPath("upload/");
if (!Directory.Exists(path)) Directory.CreateDirectory(path);
bm.Save(System.Web.HttpContext.Current.Server.MapPath("upload/" + now + ".GIF"), System.Drawing.Imaging.ImageFormat.Gif);
bm.Dispose();
if (bgStyle == 1)
{
//处理透明
//*************开始处理背景透明**********************//
Bitmap bm3 = (Bitmap)System.Drawing.Image.FromFile(path + "\\" + now + ".GIF");
Bitmap bm4 = ImageToTrans.MakeTransparentGif(bm3, Color.White);
if (!Directory.Exists(path)) Directory.CreateDirectory(path);
bm4.Save(System.Web.HttpContext.Current.Server.MapPath("upload/" + revImg), System.Drawing.Imaging.ImageFormat.Gif);
bm4.Dispose();
bm3.Dispose();
if (File.Exists(path + "\\" + now + ".GIF"))
{
File.Delete(path + "\\" + now + ".GIF");
}
}
else
{
//纯色
revImg = now + ".GIF";
}
//*************************************************//
return revImg;
}
#endregion
#region 无特效艺术字
/// <summary>
/// 无特效生成艺术字
/// </summary>
/// <param name="bmpWidth">需要生成图片宽度</param>
/// <param name="bmpHeight">需要生成图片高度</param>
/// <param name="fontName">字体名称</param>
/// <param name="fontSize">字体大小</param>
/// <param name="fontColor">字体颜色</param>
/// <param name="bgStyle">背景样式</param>
/// <param name="bgColor">背景颜色</param>
/// <param name="fontText">需要操作的文字</param>
/// <returns></returns>
public static string 无特效(float bmpWidth,float bmpHeight,string fontName,int fontSize,Color fontColor,
int bgStyle,Color bgColor,string fontText)
{
Bitmap bm = new Bitmap(Convert.ToInt32(bmpWidth), Convert.ToInt32(bmpHeight), System.Drawing.Imaging.PixelFormat.Format32bppArgb);//需要绘图的bmp
Font font = new Font(fontName, fontSize, FontStyle.Bold);
Graphics g = Graphics.FromImage(bm);
g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.SingleBitPerPixel;
//g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.ClearTypeGridFit;
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
g.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
if (bgStyle == 1)//透明
{
g.Clear(Color.White); //赋予图像一个背景色
}
else
{
g.Clear(bgColor);//背景色
}
SizeF textSize;
textSize = g.MeasureString(fontText, font);
g.DrawString(fontText, font, new SolidBrush(fontColor), (bmpWidth - textSize.Width) / 2, (bmpHeight - textSize.Height) / 2);
g.Dispose();
//设置保存路径
string now = DateTime.Now.ToString("yyyyMMddHHmmssffff");
string revImg = now + "1.GIF";
string path =System.Web.HttpContext.Current.Server.MapPath("upload/");
if (!Directory.Exists(path)) Directory.CreateDirectory(path);
bm.Save(System.Web.HttpContext.Current.Server.MapPath("upload/"+now+".GIF"), System.Drawing.Imaging.ImageFormat.Gif);
bm.Dispose();
if (bgStyle == 1)
{
//处理透明
//*************开始处理背景透明**********************//
Bitmap bm3 = (Bitmap)System.Drawing.Image.FromFile(path + "\\" + now + ".GIF");
Bitmap bm4 = ImageToTrans.MakeTransparentGif(bm3, Color.White);
if (!Directory.Exists(path)) Directory.CreateDirectory(path);
bm4.Save(System.Web.HttpContext.Current.Server.MapPath("upload/" + revImg), System.Drawing.Imaging.ImageFormat.Gif);
bm4.Dispose();
bm3.Dispose();
if (File.Exists(path + "\\" + now + ".GIF"))
{
File.Delete(path + "\\" + now + ".GIF");
}
}
else
{
//纯色
revImg = now + ".GIF";
}
return revImg;
//******************处理透明结束********************//
}
#endregion
#region 无特效艺术字
/// <summary>
/// 无特效生成艺术字
/// </summary>
/// <param name="bmpWidth">需要生成图片宽度</param>
/// <param name="bmpHeight">需要生成图片高度</param>
/// <param name="fontName">字体名称</param>
/// <param name="fontSize">字体大小</param>
/// <param name="fontColor">字体颜色</param>
/// <param name="bgStyle">背景样式</param>
/// <param name="bgColor">背景颜色</param>
/// <param name="fontText">需要操作的文字</param>
/// <returns></returns>
public static string 无特效(float bmpWidth,float bmpHeight,string fontName,int fontSize,Color fontColor,
int bgStyle,Color bgColor,string fontText)
{
Bitmap bm = new Bitmap(Convert.ToInt32(bmpWidth), Convert.ToInt32(bmpHeight), System.Drawing.Imaging.PixelFormat.Format32bppArgb);//需要绘图的bmp
Font font = new Font(fontName, fontSize, FontStyle.Bold);
Graphics g = Graphics.FromImage(bm);
g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.SingleBitPerPixel;
//g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.ClearTypeGridFit;
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
g.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
if (bgStyle == 1)//透明
{
g.Clear(Color.White); //赋予图像一个背景色
}
else
{
g.Clear(bgColor);//背景色
}
SizeF textSize;
textSize = g.MeasureString(fontText, font);
g.DrawString(fontText, font, new SolidBrush(fontColor), (bmpWidth - textSize.Width) / 2, (bmpHeight - textSize.Height) / 2);
g.Dispose();
//设置保存路径
string now = DateTime.Now.ToString("yyyyMMddHHmmssffff");
string revImg = now + "1.GIF";
string path =System.Web.HttpContext.Current.Server.MapPath("upload/");
if (!Directory.Exists(path)) Directory.CreateDirectory(path);
bm.Save(System.Web.HttpContext.Current.Server.MapPath("upload/"+now+".GIF"), System.Drawing.Imaging.ImageFormat.Gif);
bm.Dispose();
if (bgStyle == 1)
{
//处理透明
//*************开始处理背景透明**********************//
Bitmap bm3 = (Bitmap)System.Drawing.Image.FromFile(path + "\\" + now + ".GIF");
Bitmap bm4 = ImageToTrans.MakeTransparentGif(bm3, Color.White);
if (!Directory.Exists(path)) Directory.CreateDirectory(path);
bm4.Save(System.Web.HttpContext.Current.Server.MapPath("upload/" + revImg), System.Drawing.Imaging.ImageFormat.Gif);
bm4.Dispose();
bm3.Dispose();
if (File.Exists(path + "\\" + now + ".GIF"))
{
File.Delete(path + "\\" + now + ".GIF");
}
}
else
{
//纯色
revImg = now + ".GIF";
}
return revImg;
//******************处理透明结束********************//
}
#endregion
其中用到的一个透明类，下篇继续。。。并有完整事列下载，如下载失效请联系 [email protected]