public static void AddWaterMark(string originalImagePath)
{
string filename = "";
string extension = Path.GetExtension(originalImagePath);
filename = originalImagePath.Replace(extension, "WaterMark" + extension);
WaterMarkText waterMarkTextInfo = SiteConfig.WaterMarkConfig.WaterMarkTextInfo;
WaterMarkImage waterMarkImageInfo = SiteConfig.WaterMarkConfig.WaterMarkImageInfo;
int waterMarkType = SiteConfig.WaterMarkConfig.WaterMarkType;
string str4 = VirtualPathUtility.AppendTrailingSlash(SiteConfig.SiteOption.UploadDir);
string str5 = VirtualPathUtility.AppendTrailingSlash(HttpContext.Current.Server.MapPath("~/"));
originalImagePath = str5 + str4 + originalImagePath;
filename = str5 + str4 + filename;
Image image = null;
try
{
image = Image.FromFile(originalImagePath);
}
catch (FileNotFoundException)
{
CustomException.ThrowBllException("添加水印的源图片未找到。");
}
Bitmap bitmap = new Bitmap(image.Width, image.Height, PixelFormat.Format24bppRgb);
Graphics picture = Graphics.FromImage(bitmap);
picture.Clear(Color.Green);
picture.SmoothingMode = SmoothingMode.HighQuality;
picture.InterpolationMode = InterpolationMode.High;
picture.DrawImage(image, 0, 0, image.Width, image.Height);
switch (waterMarkType)
{
case 0:
AddWatermarkText(picture, waterMarkTextInfo, image.Width, image.Height);
break;
case 1:
AddWatermarkImage(picture, waterMarkImageInfo, image.Width, image.Height);
break;
}
try
{
bitmap.Save(filename, ImageFormat.Jpeg);
}
catch (ArgumentNullException)
{
CustomException.ThrowBllException("该图像的保存路径未找到。");
}
finally
{
bitmap.Dispose();
image.Dispose();
picture.Dispose();
}
FileSystemObject.Delete(originalImagePath, FsoMethod.File);
string newFile = filename.Replace("WaterMark", "");
FileSystemObject.Move(filename, newFile, FsoMethod.File);
}
private static void AddWatermarkImage(Graphics picture, WaterMarkImage waterMarkImageInfo, int width, int height)
{
string filename = HttpContext.Current.Server.MapPath("~/" + waterMarkImageInfo.ImagePath);
string waterMarkPosition = waterMarkImageInfo.WaterMarkPosition;
int waterMarkPositionX = waterMarkImageInfo.WaterMarkPositionX;
int waterMarkPositionY = waterMarkImageInfo.WaterMarkPositionY;
Image image = null;
try
{
image = new Bitmap(filename);
}
catch (ArgumentException)
{
CustomException.ThrowBllException("图片水印的路径未找到。");
}
ImageAttributes imageAttr = new ImageAttributes();
ColorMap map = new ColorMap();
map.OldColor = Color.FromArgb(0xff, 0, 0xff, 0);
map.NewColor = Color.FromArgb(0, 0, 0, 0);
ColorMap[] mapArray = new ColorMap[] { map };
imageAttr.SetRemapTable(mapArray, ColorAdjustType.Bitmap);
float[][] numArray2 = new float[5][];
float[] numArray3 = new float[5];
numArray3[0] = 1f;
numArray2[0] = numArray3;
float[] numArray4 = new float[5];
numArray4[1] = 1f;
numArray2[1] = numArray4;
float[] numArray5 = new float[5];
numArray5[2] = 1f;
numArray2[2] = numArray5;
float[] numArray6 = new float[5];
numArray6[3] = 0.3f;
numArray2[3] = numArray6;
float[] numArray7 = new float[5];
numArray7[4] = 1f;
numArray2[4] = numArray7;
float[][] newColorMatrix = numArray2;
ColorMatrix matrix = new ColorMatrix(newColorMatrix);
imageAttr.SetColorMatrix(matrix, ColorMatrixFlag.Default, ColorAdjustType.Bitmap);
int x = 0;
int y = 0;
int num5 = 0;
int num6 = 0;
double num7 = 1.0;
double num8 = Convert.ToDouble((int)(width / 4));
double num9 = Convert.ToDouble((int)(height / 4));
double num10 = Convert.ToDouble(image.Width);
double num11 = Convert.ToDouble(image.Height);
if ((width > (image.Width * 4)) && (height > (image.Height * 4)))
{
num7 = 1.0;
}
else if ((width > (image.Width * 4)) && (height < (image.Height * 4)))
{
num7 = num9 / num11;
}
else if ((width < (image.Width * 4)) && (height > (image.Height * 4)))
{
num7 = num8 / num10;
}
else if ((width * image.Height) > (height * image.Width))
{
num7 = num9 / num11;
}
else
{
num7 = num8 / num10;
}
num5 = Convert.ToInt32((double)(image.Width * num7));
num6 = Convert.ToInt32((double)(image.Height * num7));
string str3 = waterMarkPosition;
if (str3 != null)
{
if (!(str3 == "WM_TOP_LEFT"))
{
if (str3 == "WM_TOP_RIGHT")
{
x = (width - num5) - 10;
y = 10;
}
else if (str3 == "WM_BOTTOM_RIGHT")
{
x = (width - num5) - 10;
y = (height - num6) - 10;
}
else if (str3 == "WM_BOTTOM_LEFT")
{
x = 10;
y = (height - num6) - 10;
}
else if (str3 == "WM_SetByManual")
{
x = waterMarkPositionX;
y = waterMarkPositionY;
}
}
else
{
x = 10;
y = 10;
}
}
try
{
picture.DrawImage(image, new Rectangle(x, y, num5, num6), 0, 0, image.Width, image.Height, GraphicsUnit.Pixel, imageAttr);
}
catch
{
CustomException.ThrowBllException("添加图片水印出现异常。");
}
finally
{
image.Dispose();
imageAttr.Dispose();
}
}
private static void AddWatermarkText(Graphics picture, WaterMarkText waterMarkTextInfo, int width, int height)
{
SizeF ef;
string text = waterMarkTextInfo.Text;
string waterMarkPosition = waterMarkTextInfo.WaterMarkPosition;
int waterMarkPositionX = waterMarkTextInfo.WaterMarkPositionX;
int waterMarkPositionY = waterMarkTextInfo.WaterMarkPositionY;
int foneSize = waterMarkTextInfo.FoneSize;
string foneType = waterMarkTextInfo.FoneType;
string foneStyle = waterMarkTextInfo.FoneStyle;
string foneColor = waterMarkTextInfo.FoneColor;
int foneBorder = waterMarkTextInfo.FoneBorder;
string foneBorderColor = waterMarkTextInfo.FoneBorderColor;
Font font = null;
string str7 = foneStyle;
if (str7 != null)
{
if (!(str7 == "Bold"))
{
if (str7 == "Italic")
{
font = new Font(foneType, (float)foneSize, FontStyle.Italic);
goto Label_00F9;
}
if (str7 == "Regular")
{
font = new Font(foneType, (float)foneSize, FontStyle.Regular);
goto Label_00F9;
}
if (str7 == "Strikeout")
{
font = new Font(foneType, (float)foneSize, FontStyle.Strikeout);
goto Label_00F9;
}
if (str7 == "Underline")
{
font = new Font(foneType, (float)foneSize, FontStyle.Underline);
goto Label_00F9;
}
}
else
{
font = new Font(foneType, (float)foneSize, FontStyle.Bold);
goto Label_00F9;
}
}
font = new Font(foneType, (float)foneSize, FontStyle.Regular);
Label_00F9:
ef = picture.MeasureString(text, font);
float x = 0f;
float y = 0f;
string str8 = waterMarkPosition;
if (str8 != null)
{
if (!(str8 == "WM_TOP_LEFT"))
{
if (str8 == "WM_TOP_RIGHT")
{
x = (width * 0.99f) - (ef.Width / 2f);
y = height * 0.01f;
}
else if (str8 == "WM_BOTTOM_RIGHT")
{
x = (width * 0.99f) - (ef.Width / 2f);
y = (height * 0.99f) - ef.Height;
}
else if (str8 == "WM_BOTTOM_LEFT")
{
x = (width * 0.01f) + (ef.Width / 2f);
y = (height * 0.99f) - ef.Height;
}
else if (str8 == "WM_SetByManual")
{
x = waterMarkPositionX;
y = waterMarkPositionY;
}
}
else
{
x = (width * 0.01f) + (ef.Width / 2f);
y = height * 0.01f;
}
}
StringFormat format = new StringFormat();
format.Alignment = StringAlignment.Center;
ColorConverter converter = new ColorConverter();
Color color = (Color)converter.ConvertFromString(foneBorderColor);
SolidBrush brush = new SolidBrush(color);
picture.DrawString(text, font, brush, x + foneBorder, y + foneBorder, format);
ColorConverter converter2 = new ColorConverter();
Color color2 = (Color)converter2.ConvertFromString(foneColor);
SolidBrush brush2 = new SolidBrush(color2);
try
{
picture.DrawString(text, font, brush2, x, y, format);
}
catch (ArgumentNullException)
{
CustomException.ThrowBllException("添加文字水印出现异常。");
}
finally
{
brush.Dispose();
brush2.Dispose();
format.Dispose();
font.Dispose();
}
}
public static void MakeThumbnail(string originalImagePath, string thumbnailPath, int width, int height, ThumbsMode thumbsMode, string bgColor)
{
Image image = null;
try
{
image = Image.FromFile(originalImagePath);
}
catch (FileNotFoundException)
{
CustomException.ThrowBllException("生成缩略图的源图片未找到");
}
int num = width;
int num2 = height;
int x = 0;
int y = 0;
int num5 = image.Width;
int num6 = image.Height;
switch (thumbsMode)
{
case ThumbsMode.ByWidth:
num2 = (image.Height * width) / image.Width;
break;
case ThumbsMode.ByHeight:
num = (image.Width * height) / image.Height;
break;
case ThumbsMode.CutByHeightOrWidth:
if (num == 0)
{
num = 1;
}
if (num2 == 0)
{
num2 = 1;
}
if ((((double)image.Width) / ((double)image.Height)) > (((double)num) / ((double)num2)))
{
num6 = image.Height;
num5 = (image.Height * num) / num2;
y = 0;
x = (image.Width - num5) / 2;
}
else
{
num5 = image.Width;
num6 = (image.Width * height) / num;
x = 0;
y = (image.Height - num6) / 2;
}
break;
case ThumbsMode.AddBackColor:
{
double num7 = GetThumbsPercent(image.Width, image.Height, width, height);
if (width == 0)
{
width = 1;
}
if (height == 0)
{
height = 1;
}
num = Convert.ToInt32((double)(((double)image.Width) / num7));
num2 = Convert.ToInt32((double)(((double)image.Height) / num7));
x = (width - num) / 2;
y = (height - num2) / 2;
num5 = x + num;
num6 = y + num2;
break;
}
}
if (num == 0)
{
num = 1;
}
if (num2 == 0)
{
num2 = 1;
}
Image image2 = new Bitmap(num, num2);
if (thumbsMode == ThumbsMode.AddBackColor)
{
image2 = new Bitmap(width, height);
}
Graphics graphics = Graphics.FromImage(image2);
graphics.InterpolationMode = InterpolationMode.High;
graphics.SmoothingMode = SmoothingMode.HighQuality;
if ((thumbsMode == ThumbsMode.AddBackColor) && !string.IsNullOrEmpty(bgColor))
{
ColorConverter converter = new ColorConverter();
Color color = (Color)converter.ConvertFromString(bgColor);
graphics.Clear(color);
}
else
{
graphics.Clear(Color.Transparent);
}
if (thumbsMode == ThumbsMode.AddBackColor)
{
graphics.DrawImage(image, new Rectangle(x, y, num, num2), new Rectangle(0, 0, image.Width, image.Height), GraphicsUnit.Pixel);
}
else
{
graphics.DrawImage(image, new Rectangle(0, 0, num, num2), new Rectangle(x, y, num5, num6), GraphicsUnit.Pixel);
}
try
{
image2.Save(thumbnailPath, ImageFormat.Jpeg);
}
catch
{
throw new ExternalException("该图像以错误的图像格式保存。- 或 - 该图像被保存到创建该图像的文件");
}
finally
{
image.Dispose();
image2.Dispose();
graphics.Dispose();
}
}
