public static void Set(Uri uri, Style style, ImageFormat format)
{
Stream stream = new WebClient().OpenRead(uri.ToString());
if (stream == null) return;
Image img = Image.FromStream(stream);
string tempPath = Path.Combine(Path.GetTempPath(), "img." + format.ToString());
img.Save(tempPath, format);
RegistryKey key = Registry.CurrentUser.OpenSubKey(@"Control Panel\Desktop", true);
if (style == Style.Stretched)
{
key.SetValue(@"WallpaperStyle", 2.ToString());
key.SetValue(@"TileWallpaper", 0.ToString());
}
if (style == Style.Centered)
{
key.SetValue(@"WallpaperStyle", 1.ToString());
key.SetValue(@"TileWallpaper", 0.ToString());
}
if (style == Style.Tiled)
{
key.SetValue(@"WallpaperStyle", 1.ToString());
key.SetValue(@"TileWallpaper", 1.ToString());
}
SystemParametersInfo(SpiSetdeskwallpaper,
0,
tempPath,
SpifUpdateinifile | SpifSendwininichange);
}
public static Stream ToStream(this Image image, ImageFormat formaw)
{
var stream = new MemoryStream();
image.Save(stream, formaw);
stream.Position = 0;
return stream;
}
/// <summary>
/// 調整圖片壓縮解析度
/// </summary>
public static string ToBase64String_x1(Bitmap newBmp, ImageFormat iFormat)
{
MemoryStream ms = new MemoryStream();
//save
ImageCodecInfo jgpEncoder = GetEncoder(ImageFormat.Jpeg);
System.Drawing.Imaging.Encoder myEncoder = System.Drawing.Imaging.Encoder.Quality;
EncoderParameters myEncoderParameters = new EncoderParameters(1);
EncoderParameter myEncoderParameter = new EncoderParameter(myEncoder, 30L);
myEncoderParameters.Param[0] = myEncoderParameter;
newBmp.Save(ms, jgpEncoder, myEncoderParameters);
//Bitmap new2Bmp = new Bitmap(ms);
//new2Bmp.Save(@"c:\test002.jpg", iFormat);
//newBmp.Save(ms, iFormat);
ms.Seek(0, SeekOrigin.Begin);
//建立一個byte
//並且定義長度為MemoryStream的長度
byte[] bytes = new byte[ms.Length];
//MemoryStream讀取資料
ms.Read(bytes, 0, (int)ms.Length);
ms.Close();
return Convert.ToBase64String(bytes);
}
public static ImageResult CreateImageFrom(byte[] bytes, ImageFormat format)
{
byte[] nonIndexedImageBytes;
using (var memoryStream = new MemoryStream(bytes))
using (var image = Image.FromStream(memoryStream))
using (var temporaryBitmap = new Bitmap(image.Width, image.Height))
{
using (var graphics = Graphics.FromImage(temporaryBitmap))
{
graphics.DrawImage(image, new Rectangle(0, 0, temporaryBitmap.Width, temporaryBitmap.Height),
0, 0, temporaryBitmap.Width, temporaryBitmap.Height, GraphicsUnit.Pixel);
}
ImagePropertyItems.Copy(image, temporaryBitmap);
using (var saveStream = new MemoryStream())
{
temporaryBitmap.Save(saveStream, format);
nonIndexedImageBytes = saveStream.ToArray();
}
}
return new ImageResult(nonIndexedImageBytes, format);
}
internal void Save(Report rpt, System.IO.Stream stream, ImageFormat im)
{
if (_bm == null)
Draw(rpt);
_mf.Save(stream, im);
// _bm.Save(stream, im);
}
protected void ReturnImage(HttpContextBase context, string file, ImageFormat imageFormat, string contentType)
{
var buffer = GetImage(file, imageFormat);
context.Response.ContentType = "image/png";
context.Response.BinaryWrite(buffer);
context.Response.Flush();
}
public void SaveImage(string filename, ImageFormat format)
{
if (bitmap != null)
{
bitmap.Save(filename, format);
}
}
public WebImage(Stream imageStream) {
if (imageStream.CanSeek) {
imageStream.Seek(0, SeekOrigin.Begin);
_content = new byte[imageStream.Length];
using (BinaryReader reader = new BinaryReader(imageStream)) {
reader.Read(_content, 0, (int)imageStream.Length);
}
}
else {
List<byte[]> chunks = new List<byte[]>();
int totalSize = 0;
using (BinaryReader reader = new BinaryReader(imageStream)) {
// Pick some size for chunks that is still under limit
// that causes them to be placed on the large object heap.
int chunkSizeInBytes = 1024 * 50;
byte[] nextChunk = null;
do {
nextChunk = reader.ReadBytes(chunkSizeInBytes);
totalSize += nextChunk.Length;
chunks.Add(nextChunk);
}
while (nextChunk.Length == chunkSizeInBytes);
}
_content = new byte[totalSize];
int startIndex = 0;
foreach (var chunk in chunks) {
chunk.CopyTo(_content, startIndex);
startIndex += chunk.Length;
}
}
_initialFormat = ValidateImageContent(_content, "imageStream");
_currentFormat = _initialFormat;
}
public static MemoryStream CompressImage(ImageFormat format, Stream stream, Size size, bool isbig)
{
using (var image = Image.FromStream(stream))
{
Image bitmap = new Bitmap(size.Width, size.Height);
Graphics g = Graphics.FromImage(bitmap);
g.InterpolationMode = InterpolationMode.High;
g.SmoothingMode = SmoothingMode.HighQuality;
g.Clear(Color.Transparent);
//按指定面积缩小
if (!isbig)
{
g.DrawImage(image,
new Rectangle(0, 0, size.Width, size.Height),
ImageCutSize(image, size),
GraphicsUnit.Pixel);
}
//按等比例缩小
else
{
g.DrawImage(image,
new Rectangle(0, 0, size.Width, size.Height),
new Rectangle(0, 0, image.Width, image.Height),
GraphicsUnit.Pixel);
}
var compressedImageStream = new MemoryStream();
bitmap.Save(compressedImageStream, format);
g.Dispose();
bitmap.Dispose();
return compressedImageStream;
}
}
/// <summary>
/// 将Pdf转换成图片存放在指定的文件夹下面并且返回转换了多少张图片(插件：O2S.Components.PDFRender4NETd)
/// (使用：调用此方法传递参数，最后一个参数为模糊度(参考传递30))
/// </summary>
/// <param name="pdfInputPath">源PDF路径</param>
/// <param name="imageOutpPutPath">PDF转化成图片之后存放的路径</param>
/// <param name="imageFormat">转换的图片格式</param>
/// <param name="difinition">传递参数模糊度</param>
/// <returns>返回转换了多少张图片信息</returns>
public static int PdfConvertImageInfo(string pdfInputPath, string imageOutpPutPath, ImageFormat imageFormat,
float difinition)
{
try
{
//第一步：判断需要转换的PDF是否存在
if (!File.Exists(pdfInputPath))
{
throw new System.Exception("PDF的路径不存在");
}
//第二步：判断存放转换后图片的地址是否存在
if (!Directory.Exists(imageOutpPutPath))
{
throw new System.Exception("存放图片的路径不存在");
}
//第三步：进行转换(使用插件O2S.Components.PDFRender4NET)
PDFFile pdfFile = PDFFile.Open(pdfInputPath);
int pageCount = pdfFile.PageCount;
for (int i = 0; i < pageCount; i++)
{
Bitmap bitmap = pdfFile.GetPageImage(i, difinition);
bitmap.Save(Path.Combine(imageOutpPutPath, i + "." + imageFormat), imageFormat);
bitmap.Dispose();
}
pdfFile.Dispose();
//第四步：返回PDF转换了多少张图片的个数
return pageCount;
}
catch (System.Exception exception)
{
throw new System.Exception("PDF转换图片出现错误了，错误原因：" + exception.Message);
}
}
/// <summary>
/// 将Word文档转换为图片的方法（该方法基于第三方DLL），你可以像这样调用该方法：
/// ConvertPDF2Image("F:\\PdfFile.doc", "F:\\", "ImageFile", 1, 20, ImageFormat.Png, 256);
/// </summary>
/// <param name="pdfInputPath">Word文件路径</param>
/// <param name="imageOutputPath">图片输出路径，如果为空，默认值为Word所在路径</param>
/// <param name="imageName">图片的名字，不需要带扩展名，如果为空，默认值为Word的名称</param>
/// <param name="startPageNum">从PDF文档的第几页开始转换，如果为0，默认值为1</param>
/// <param name="endPageNum">从PDF文档的第几页开始停止转换，如果为0，默认值为Word总页数</param>
/// <param name="imageFormat">设置所需图片格式，如果为null，默认格式为PNG</param>
/// <param name="resolution">设置图片的像素，数字越大越清晰，如果为0，默认值为128，建议最大值不要超过1024</param>
public static void ConvertWordToImage(string wordInputPath, string imageOutputPath,
string imageName, int startPageNum, int endPageNum, ImageFormat imageFormat, float resolution)
{
try
{
// open word file
Aspose.Words.Document doc = new Aspose.Words.Document(wordInputPath);
// validate parameter
if (doc == null) { throw new Exception("Word文件无效或者Word文件被加密！"); }
if (imageOutputPath.Trim().Length == 0) { imageOutputPath = Path.GetDirectoryName(wordInputPath); }
if (!Directory.Exists(imageOutputPath)) { Directory.CreateDirectory(imageOutputPath); }
if (imageName.Trim().Length == 0) { imageName = Path.GetFileNameWithoutExtension(wordInputPath); }
if (startPageNum <= 0) { startPageNum = 1; }
if (endPageNum > doc.PageCount || endPageNum <= 0) { endPageNum = doc.PageCount; }
if (startPageNum > endPageNum) { int tempPageNum = startPageNum; startPageNum = endPageNum; endPageNum = startPageNum; }
if (imageFormat == null) { imageFormat = ImageFormat.Png; }
if (resolution <= 0) { resolution = 128; }
ImageSaveOptions imageSaveOptions = new ImageSaveOptions(GetSaveFormat(imageFormat));
imageSaveOptions.Resolution = resolution;
// start to convert each page
for (int i = startPageNum; i <= endPageNum; i++)
{
imageSaveOptions.PageIndex = i - 1;
doc.Save(Path.Combine(imageOutputPath, imageName) + "_" + i.ToString() + "." + imageFormat.ToString(), imageSaveOptions);
}
}
catch (Exception ex)
{
throw ex;
}
}
public static Bitmap GetThumbnail(int width, int height, string filter, string caption, ImageFormat format, Image b)
{
Bitmap source = new Bitmap(b);
source = new Bitmap(source.GetThumbnailImage(width, height, null, IntPtr.Zero));
if (format == ImageFormat.Gif)
{
source = new OctreeQuantizer(0xff, 8).Quantize(source);
}
if ((filter.Length > 0) && filter.ToUpper().StartsWith("SHARPEN"))
{
string str = filter.Remove(0, 7).Trim();
int nWeight = (str.Length > 0) ? Convert.ToInt32(str) : 11;
BitmapFilter.Sharpen(source, nWeight);
}
if (caption.Length <= 0)
{
return source;
}
using (Graphics graphics = Graphics.FromImage(source))
{
StringFormat format2 = new StringFormat();
format2.Alignment = StringAlignment.Center;
format2.LineAlignment = StringAlignment.Center;
using (Font font = new Font("Arial", 12f))
{
graphics.TextRenderingHint = TextRenderingHint.AntiAliasGridFit;
graphics.FillRectangle(new SolidBrush(Color.FromArgb(150, 0, 0, 0)), 0, source.Height - 20, source.Width, 20);
graphics.DrawString(caption, font, Brushes.White, 0f, (float)(source.Height - 20));
return source;
}
}
}
/// <summary>
/// To the bitmap source.
/// </summary>
/// <param name="bitmap">The bitmap.</param>
/// <param name="format">The format.</param>
/// <param name="creationOptions">The creation options.</param>
/// <param name="cacheOptions">The cache options.</param>
/// <returns></returns>
/// <exception cref="System.ArgumentNullException">bitmap</exception>
public static BitmapSource ToBitmapSource(this Bitmap bitmap, ImageFormat format, BitmapCreateOptions creationOptions = BitmapCreateOptions.PreservePixelFormat, BitmapCacheOption cacheOptions = BitmapCacheOption.OnLoad)
{
if (bitmap == null)
throw new ArgumentNullException("bitmap");
using (MemoryStream memoryStream = new MemoryStream())
{
try
{
// You need to specify the image format to fill the stream.
// I'm assuming it is PNG
bitmap.Save(memoryStream, format);
memoryStream.Seek(0, SeekOrigin.Begin);
BitmapDecoder bitmapDecoder = BitmapDecoder.Create(
memoryStream,
creationOptions,
cacheOptions);
// This will disconnect the stream from the image completely...
WriteableBitmap writable =
new WriteableBitmap(bitmapDecoder.Frames.Single());
writable.Freeze();
return writable;
}
catch (Exception)
{
return null;
}
}
}
public Image ScanImage(ImageFormat outputFormat, string fileName)
{
if (outputFormat == null)
throw new ArgumentNullException("outputFormat");
FileIOPermission filePerm = new FileIOPermission(FileIOPermissionAccess.AllAccess, fileName);
filePerm.Demand();
ImageFile imageObject = null;
try
{
if (WiaManager == null)
WiaManager = new CommonDialogClass();
imageObject =
WiaManager.ShowAcquireImage(WiaDeviceType.ScannerDeviceType,
WiaImageIntent.GrayscaleIntent, WiaImageBias.MaximizeQuality,
outputFormat.Guid.ToString("B"), false, true, true);
imageObject.SaveFile(fileName);
return Image.FromFile(fileName);
}
catch (COMException ex)
{
string message = "Error scanning image";
throw new WiaOperationException(message, ex);
}
finally
{
if (imageObject != null)
Marshal.ReleaseComObject(imageObject);
}
}
private void SaveImageAs(int bitmap, string fileName, ImageFormat imageFormat)
{
Bitmap image = new Bitmap(Image.FromHbitmap(new IntPtr(bitmap)),
Image.FromHbitmap(new IntPtr(bitmap)).Width,
Image.FromHbitmap(new IntPtr(bitmap)).Height);
image.Save(fileName, imageFormat);
}
private ImageCodecInfo GetEncoder(ImageFormat format)
{
var codecs = ImageCodecInfo.GetImageDecoders();
return codecs.FirstOrDefault(codec => codec.FormatID == format.Guid);
}
byte[] GetResizedImage(Stream originalStream, ImageFormat imageFormat, int width, int height)
{
Bitmap imgIn = new Bitmap(originalStream);
double y = imgIn.Height;
double x = imgIn.Width;
double factor = 1;
if (width > 0)
{
factor = width / x;
}
else if (height > 0)
{
factor = height / y;
}
System.IO.MemoryStream outStream = new System.IO.MemoryStream();
Bitmap imgOut = new Bitmap((int)(x * factor), (int)(y * factor));
// Set DPI of image (xDpi, yDpi)
imgOut.SetResolution(72, 72);
Graphics g = Graphics.FromImage(imgOut);
g.Clear(Color.White);
g.DrawImage(imgIn, new Rectangle(0, 0, (int)(factor * x), (int)(factor * y)),
new Rectangle(0, 0, (int)x, (int)y), GraphicsUnit.Pixel);
imgOut.Save(outStream, imageFormat);
return outStream.ToArray();
}
/// <summary>
/// Saves the specified render target as an image with the specified format.
/// </summary>
/// <param name="renderTarget">The render target to save.</param>
/// <param name="stream">The stream to which to save the render target data.</param>
/// <param name="format">The format with which to save the image.</param>
private void Save(RenderTarget2D renderTarget, Stream stream, ImageFormat format)
{
var data = new Color[renderTarget.Width * renderTarget.Height];
renderTarget.GetData(data);
Save(data, renderTarget.Width, renderTarget.Height, stream, format);
}
public static string imageFormatToMimeType(ImageFormat imageFormat)
{
if (imageFormat == ImageFormat.Tiff)
{
return ("image/tiff");
}
else if (imageFormat == ImageFormat.Gif)
{
return ("image/gif");
}
else if (imageFormat == ImageFormat.Png)
{
return ("image/png");
}
else if (imageFormat == ImageFormat.Jpeg)
{
return ("image/jpeg");
}
else if (imageFormat == ImageFormat.Bmp)
{
return ("image/bmp");
}
else
{
return (null);
}
}
// Create a bitmap file of the mapDisplay supplied at construction.
public void CreateBitmap(string fileName, RectangleF rect, ImageFormat imageFormat, float dpi)
{
float bitmapWidth, bitmapHeight; // size of the bitmap in pixels.
int pixelWidth, pixelHeight; // bitmapWidth/Height, rounded up to integer.
bitmapWidth = (rect.Width / 25.4F) * dpi;
bitmapHeight = (rect.Height / 25.4F) * dpi;
pixelWidth = (int)Math.Ceiling(bitmapWidth);
pixelHeight = (int) Math.Ceiling(bitmapHeight);
Bitmap bitmap = new Bitmap(pixelWidth, pixelHeight, PixelFormat.Format24bppRgb);
bitmap.SetResolution(dpi, dpi);
// Set the transform
Matrix transform = Geometry.CreateInvertedRectangleTransform(rect, new RectangleF(0, 0, bitmapWidth, bitmapHeight));
// And draw.
mapDisplay.Draw(bitmap, transform);
// JPEG and GIF have special code paths because the default Save method isn't
// really good enough.
if (imageFormat == ImageFormat.Jpeg)
BitmapUtil.SaveJpeg(bitmap, fileName, 80);
else if (imageFormat == ImageFormat.Gif)
BitmapUtil.SaveGif(bitmap, fileName);
else
bitmap.Save(fileName, imageFormat);
bitmap.Dispose();
}
private void GenerateImage(
HttpResponse response,
string textToInsert,
int width,
int height,
Color backgroundColor,
FontFamily fontFamily,
float emSize,
Brush brush,
float x,
float y,
string contentType,
ImageFormat imageFormat)
{
using (Bitmap bitmap = new Bitmap(width, height))
{
using (Graphics graphics = Graphics.FromImage(bitmap))
{
graphics.Clear(backgroundColor);
graphics.DrawString(textToInsert, new Font(fontFamily, emSize), brush, x, y);
response.ContentType = contentType;
bitmap.Save(response.OutputStream, imageFormat);
}
}
}
public static Stream Normalize(Image input, int ow, int oh, bool crop, ImageFormat outputFormat)
{
Contract.Requires(input != null, "input");
Contract.Requires(outputFormat != null, "outputFormat");
Contract.Ensures(Contract.Result<Stream>() != null);
// Create output canvas
// Store CURRENT sizes (solution cannot be bigger than these)
double iw = input.Width;
double ih = input.Height;
// Calculate resize ratio
double r = 1;
if (crop) { // Fill
if (ow / iw > oh / ih) { // Width is bigger
r = ow / iw;
} else { // Height is bigger
r = oh / ih;
}
} else { // Max
if (ow / iw > oh / ih) { // Width is bigger
r = oh / ih;
} else { // Height is bigger
r = ow / iw;
}
}
// Calculate the new image size (if cropped, this will be bigger than the canvas)
int w = Convert.ToInt32(iw * r);
int h = Convert.ToInt32(ih * r);
// Calculate the draw position (centering when cropping)
int x = w < ow ? 0 : (ow - w) / 2;
int y = h < oh ? 0 : (oh - h) / 2;
// If the image is smaller than the expected canvas, shrink the canvas to fit
if (w < ow) {
ow = w;
}
if (h < oh) {
oh = h;
}
// Resize and crop image based on these paramaters
using (var output = new Bitmap(ow, oh)) {
using (var graphic = Graphics.FromImage(output)) {
graphic.CompositingQuality = CompositingQuality.HighQuality;
graphic.SmoothingMode = SmoothingMode.HighQuality;
graphic.InterpolationMode = InterpolationMode.HighQualityBicubic;
graphic.DrawImage(input, new Rectangle(x, y, w, h));
}
// Convert canvas to stream
var resizedStream = new MemoryStream();
output.Save(resizedStream, outputFormat);
resizedStream.Position = 0;
return resizedStream;
}
}
public static void Save(Byte[] imageBytes, string fullImagePath, ImageFormat format)
{
using (Stream ImageStream = new MemoryStream(imageBytes))
{
Save(ImageStream, fullImagePath, fullImagePath, format);
}
}
/// <summary>
/// Constructor por defecto.
/// </summary>
public frmFondo(string ruta, ImageFormat formato, bool original, int width, int height)
{
InitializeComponent();
this.original = original;
this.width = width;
this.height = height;
//Establecemos el ancho de la forma a la resolución actual de pantalla
this.Bounds = Screen.GetBounds(this.ClientRectangle);
//Inicializamos las variables
origen = new Point(0, 0);
destino = new Point(0, 0);
actual = new Point(0, 0);
//De momento nuestro gráfico es nulo
areaSeleccionada = this.CreateGraphics();
//El estilo de línea del lápiz serán puntos
lapizActual.DashStyle = DashStyle.Solid;
//Establecemos falsa la variable que nos indica si el boton presionado fue el boton izquierdo
BotonIzq = false;
//Delegados para manejar los eventos del mouse y poder dibujar el rectangulo del área que deseamos copiar
this.MouseDown += new MouseEventHandler(mouse_Click);
this.MouseUp += new MouseEventHandler(mouse_Up);
this.MouseMove += new MouseEventHandler(mouse_Move);
this.ruta = ruta;
this.formato = formato;
}
public static ImageFormatTypes GetImageFormat(ImageFormat type)
{
if (type == ImageFormat.Bmp)
return ImageFormatTypes.imgBMP;
else
if (type == ImageFormat.Emf)
return ImageFormatTypes.imgEMF;
else
if (type == ImageFormat.Exif)
return ImageFormatTypes.imgEXIF;
else
if (type == ImageFormat.Gif)
return ImageFormatTypes.imgGIF;
else
if (type == ImageFormat.Icon)
return ImageFormatTypes.imgICON;
else
if (type == ImageFormat.Jpeg)
return ImageFormatTypes.imgJPEG;
else
if (type == ImageFormat.Png)
return ImageFormatTypes.imgPNG;
else
if (type == ImageFormat.Tiff)
return ImageFormatTypes.imgTIFF;
else
if (type == ImageFormat.Wmf)
return ImageFormatTypes.imgWMF;
return ImageFormatTypes.imgNone;
}
public static Stream ResizeImage(Image image, ImageFormat format, int width, int height, bool preserveAspectRatio = true)
{
ImageHelper.ImageRotation(image);
int newWidth;
int newHeight;
if (preserveAspectRatio)
{
int originalWidth = image.Width;
int originalHeight = image.Height;
float percentWidth = (float)width / (float)originalWidth;
float percentHeight = (float)height / (float)originalHeight;
float percent = percentHeight < percentWidth ? percentHeight : percentWidth;
newWidth = (int)(originalWidth * percent);
newHeight = (int)(originalHeight * percent);
}
else
{
newWidth = width;
newHeight = height;
}
Image newImage = new Bitmap(newWidth, newHeight);
using (Graphics graphicsHandle = Graphics.FromImage(newImage))
{
graphicsHandle.InterpolationMode = InterpolationMode.HighQualityBicubic;
graphicsHandle.DrawImage(image, 0, 0, newWidth, newHeight);
}
//return newImage;
var stream = new MemoryStream();
newImage.Save(stream, format);
stream.Position = 0;
return stream;
}
WebApiPictureContext GetPictureWebApi(string filePath, ImageFormat format, double width, double height, double positionX, double positionY)
{
WebApiPictureContext retVal = new WebApiPictureContext();
retVal.Base64String = GetBaseStringFromImage(new Bitmap(filePath), format);
retVal.Location = new WebApiPictureData { BoundsHeight = height, BoundsWidth = width, BoundsLocationX = positionX, BoundsLocationY = positionY};
return retVal;
}
public static Stream Save(this Bitmap bitmap, ImageFormat format)
{
var stream = new MemoryStream();
bitmap.Save(stream, format);
stream.Position = 0;
return stream;
}
/// <summary>
/// Saves the specified surface as an image with the specified format.
/// </summary>
/// <param name="surface">The surface to save.</param>
/// <param name="stream">The stream to which to save the surface data.</param>
/// <param name="format">The format with which to save the image.</param>
private void Save(Surface2D surface, Stream stream, ImageFormat format)
{
var data = new Color[surface.Width * surface.Height];
surface.GetData(data);
Save(data, surface.Width, surface.Height, stream, format);
}
public static void Save(Stream imageStream, string fullImagePath, ImageFormat format)
{
using (Bitmap ImageBitmap = new Bitmap(imageStream))
{
Save(ImageBitmap, fullImagePath, format);
}
}
public static byte[] ToByteArray(this Drawing.Image image, Drawing.Imaging.ImageFormat format)
{
using (var stream = new MemoryStream())
{
image.Save(stream, format);
stream.Position = 0;
return(stream.ToArray());
}
}
private byte[] ConvertImageToByteArray(System.Drawing.Image imageToConvert,
System.Drawing.Imaging.ImageFormat formatOfImage)
{
byte[] Ret;
try
{
using (MemoryStream ms = new MemoryStream())
{
imageToConvert.Save(ms, formatOfImage);
Ret = ms.ToArray();
}
}
catch (Exception) { throw; }
return(Ret);
}
/// <summary>
/// Saves the image.
/// </summary>
/// <param name="outputFormat">The output format.</param>
/// <param name="image">The image.</param>
/// <param name="toStream">To stream.</param>
/// <param name="quality">The quality.</param>
public static void Save(this Image image, System.Drawing.Imaging.ImageFormat outputFormat, Stream toStream, int quality)
{
// Use special save methods for jpeg and png that will result in a much higher quality image
// All other formats use the generic Image.Save
if (System.Drawing.Imaging.ImageFormat.Jpeg.Equals(outputFormat))
{
SaveAsJpeg(image, toStream, quality);
}
else if (System.Drawing.Imaging.ImageFormat.Png.Equals(outputFormat))
{
image.Save(toStream, System.Drawing.Imaging.ImageFormat.Png);
}
else
{
image.Save(toStream, outputFormat);
}
}
/// <summary>
/// 生成略缩图
/// </summary>
/// <param name="fileName">源文件路径</param>
/// <param name="newFile">新文件路径</param>
/// <param name="maxWidth">生成新文件的宽度,高度自动算</param>
public static void SmallImageGenerated(string fileName, string newFile, int maxWidth)
{
System.Drawing.Image img = System.Drawing.Image.FromFile(fileName);
System.Drawing.Imaging.ImageFormat
thisFormat = img.RawFormat;
int maxHeight = img.Height * maxWidth / img.Width;
//int maxHeight = 200;
Size newSize = new Size(maxWidth, maxHeight);
Bitmap outBmp = new Bitmap(newSize.Width, newSize.Height);
Graphics g = Graphics.FromImage(outBmp); // 设置画布的描绘质量
g.DrawImage(img, new System.Drawing.Rectangle(0, 0, newSize.Width, newSize.Height), 0, 0, img.Width, img.Height, GraphicsUnit.Pixel);
g.Dispose();
// 以下代码为保存图片时,设置压缩质量
EncoderParameters encoderParams = new EncoderParameters();
long[] quality = new long[1];
quality[0] = 100;
EncoderParameter encoderParam = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, quality);
encoderParams.Param[0] = encoderParam;
//获得包含有关内置图像编码解码器的信息的ImageCodecInfo 对象.
ImageCodecInfo[] arrayICI = ImageCodecInfo.GetImageEncoders();
ImageCodecInfo jpegICI = null;
for (int x = 0; x < arrayICI.Length; x++)
{
if (arrayICI[x].FormatDescription.Equals("JPEG"))
{
jpegICI = arrayICI[x];
//设置JPEG编码
break;
}
}
if (jpegICI != null)
{
outBmp.Save(newFile, jpegICI, encoderParams);
}
else
{
outBmp.Save(newFile,
thisFormat);
}
img.Dispose();
outBmp.Dispose();
}
/// <summary>
/// scale image to fit current page
/// </summary>
/// <param name="b">source image</param>
/// <param name="destHeight">page height</param>
/// <param name="destWidth">page width</param>
/// <returns></returns>
public Bitmap ScaleFitPage(Bitmap b, int destHeight, int destWidth)
{
System.Drawing.Image imgSource = b;
System.Drawing.Imaging.ImageFormat thisFormat = imgSource.RawFormat;
int sW = 0, sH = 0;
// equal scale
int sWidth = imgSource.Width;
int sHeight = imgSource.Height;
if (sHeight > destHeight || sWidth > destWidth)
{
if ((sWidth * destHeight) > (sHeight * destWidth))
{
sW = destWidth;
sH = (destWidth * sHeight) / sWidth;
}
else
{
sH = destHeight;
sW = (sWidth * destHeight) / sHeight;
}
}
else
{
sW = sWidth;
sH = sHeight;
}
Bitmap outBmp = new Bitmap(destWidth, destHeight);
Graphics g = Graphics.FromImage(outBmp);
g.Clear(Color.Transparent);
g.CompositingQuality = CompositingQuality.HighQuality;
g.SmoothingMode = SmoothingMode.HighQuality;
g.InterpolationMode = InterpolationMode.HighQualityBicubic;
g.DrawImage(imgSource, new Rectangle((destWidth - sW) / 2, (destHeight - sH) / 2, sW, sH), 0, 0, imgSource.Width, imgSource.Height, GraphicsUnit.Pixel);
g.Dispose();
EncoderParameters encoderParams = new EncoderParameters();
long[] quality = new long[1];
quality[0] = 100;
EncoderParameter encoderParam = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, quality);
encoderParams.Param[0] = encoderParam;
imgSource.Dispose();
return(outBmp);
}
private static Stream RotateImage(string rotateTypes, string physicalPath, System.Drawing.Imaging.ImageFormat imageFormat)
{
Stream imageStream = new MemoryStream();
if (!string.IsNullOrEmpty(rotateTypes))
{
using (Image image = Image.FromFile(physicalPath))
{
var rotates = rotateTypes.Split(new[] { "," }, StringSplitOptions.RemoveEmptyEntries);
foreach (var rotateType in rotates)
{
switch (rotateType)
{
case "1": //逆时针旋转90
image.RotateFlip(RotateFlipType.Rotate270FlipNone);
break;
case "2": //顺时针旋转90
image.RotateFlip(RotateFlipType.Rotate90FlipNone);
break;
case "3": //垂直翻转
image.RotateFlip(RotateFlipType.Rotate180FlipX);
break;
case "4": //水平翻转
image.RotateFlip(RotateFlipType.Rotate180FlipY);
break;
default:
break;
}
}
image.Save(imageStream, imageFormat);
}
}
else
{
using (var fs = new FileStream(physicalPath, FileMode.Open, FileAccess.Read))
{
fs.CopyTo(imageStream);
}
}
imageStream.Position = 0;
return(imageStream);
}
private void EncodeBitmap(Image image, Stream stream, IImageEncoderOptions encoderOptions)
{
using (EncoderParameters encoderParameters = new EncoderParameters(1))
using (EncoderParameter qualityParameter = new EncoderParameter(Encoder.Quality, encoderOptions.Quality)) {
encoderParameters.Param[0] = qualityParameter;
System.Drawing.Imaging.ImageFormat format = imageFormat is null ? image.RawFormat : GetImageFormatFromFileExtension(imageFormat.Extensions.FirstOrDefault());
ImageCodecInfo encoder = GetEncoderFromImageFormat(format);
if (encoder is null)
{
encoder = GetEncoderFromImageFormat(System.Drawing.Imaging.ImageFormat.Png);
}
image.Save(stream, encoder, encoderParameters);
}
}
public static byte[] ImageToByteArray(System.Drawing.Image imageOrg, System.Drawing.Imaging.ImageFormat saveFormat,
bool isDeleteOrgin = false)
{
if (null == imageOrg)
{
return(null);
}
using (var ms = new MemoryStream())
{
imageOrg.Save(ms, saveFormat);
if (isDeleteOrgin)
{
DestroyDisposableObj(imageOrg);
}
return(ms.ToArray());
}
}
private void Save_button_Click(object sender, EventArgs e)
{
SaveFileDialog saveImageDialog = new SaveFileDialog();
saveImageDialog.Title = "图片保存";
saveImageDialog.Filter = @"jpeg|*.jpg|bmp|*.bmp";
if (saveImageDialog.ShowDialog() == DialogResult.OK)
{
string fileName = saveImageDialog.FileName.ToString();
if (fileName != "" && fileName != null)
{
string fileExtName = fileName.Substring(fileName.LastIndexOf(".") + 1).ToString();
System.Drawing.Imaging.ImageFormat imgformat = null;
if (fileExtName != "")
{
switch (fileExtName)
{
case "jpg":
imgformat = System.Drawing.Imaging.ImageFormat.Jpeg;
break;
case "bmp":
imgformat = System.Drawing.Imaging.ImageFormat.Bmp;
break;
default:
imgformat = System.Drawing.Imaging.ImageFormat.Jpeg;
break;
}
try
{
Bitmap bit = new Bitmap(data_pictureBox.Image);
MessageBox.Show(fileName);
data_pictureBox.Image.Save(fileName, imgformat);
}
catch
{
}
}
}
}
}
private ImageCodecInfo GetEncoder(GDIIMAGEFORMAT format)
{
if (_CodecsCache == null)
{
_CodecsCache = ImageCodecInfo.GetImageEncoders();
}
foreach (var codec in _CodecsCache)
{
if (codec.FormatID == format.Guid)
{
return(codec);
}
}
return(null);
}
private static Stream RotateImage(string rotateTypes, Stream inputStream, System.Drawing.Imaging.ImageFormat imageFormat)
{
Stream imageStream = new MemoryStream();
if (!string.IsNullOrEmpty(rotateTypes))
{
using (Image image = Image.FromStream(inputStream))
{
var rotates = rotateTypes.Split(new[] { "," }, StringSplitOptions.RemoveEmptyEntries);
foreach (var rotateType in rotates)
{
switch (rotateType)
{
case "1": //逆时针旋转90
image.RotateFlip(RotateFlipType.Rotate270FlipNone);
break;
case "2": //顺时针旋转90
image.RotateFlip(RotateFlipType.Rotate90FlipNone);
break;
case "3": //垂直翻转
image.RotateFlip(RotateFlipType.Rotate180FlipX);
break;
case "4": //水平翻转
image.RotateFlip(RotateFlipType.Rotate180FlipY);
break;
default:
break;
}
}
image.Save(imageStream, imageFormat);
image.Dispose();
}
}
else
{
inputStream.Position = 0;
inputStream.CopyTo(imageStream);
}
imageStream.Position = 0;
return(imageStream);
}
public static byte[] GetBytes(Image Image, System.Drawing.Imaging.ImageFormat ImageFormat)
{
try
{
if (Image != null)
{
MemoryStream MS = new MemoryStream();
Image.Save(MS, ImageFormat);
MS.Position = 0;
return(MS.ToArray());
}
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
return(null);
}
public bool SaveImage(Stream ms, System.Drawing.Imaging.ImageFormat format)
{
if (_image == null)
{
return(false);
}
try
{
try
{
if (Display.MakeTransparent &&
format != ImageFormat.Jpeg &&
format != ImageFormat.Gif)
{
_image.MakeTransparent(Display.TransparentColor);
}
}
catch (Exception ex)
{
if (this.MapServer != null)
{
this.MapServer.Log(
"RenderRasterLayerThread", loggingMethod.error,
"Image.MakeTransparent\n'\nFormat=" + format.ToString() + "\n" +
ex.Message + "\n" + ex.Source + "\n" + ex.StackTrace);
}
}
_image.Save(ms, format);
_image.Dispose();
_image = null;
return(true);
}
catch (Exception ex)
{
if (this.MapServer != null)
{
this.MapServer.Log(
"RenderRasterLayerThread", loggingMethod.error,
"Image.Save\n'\nFormat=" + format.ToString() + "\n" +
ex.Message + "\n" + ex.Source + "\n" + ex.StackTrace);
}
return(false);
}
}
/// <summary>
/// 压缩指定尺寸，如果写的和图片大家一样表示大小不变，只是把图片压缩下一些
/// </summary>
/// <param name="oldfile">原文件</param>
/// <param name="newfile">新文件</param>
/// <param name="width">长</param>
/// <param name="height">高</param>
public bool Compress(string oldfile, string newfile, int width, int height)
{
try
{
System.Drawing.Image img = System.Drawing.Image.FromFile(oldfile);
System.Drawing.Imaging.ImageFormat thisFormat = img.RawFormat;
Size newSize = new Size(width, height);
Bitmap outBmp = new Bitmap(newSize.Width, newSize.Height);
Graphics g = Graphics.FromImage(outBmp);
g.CompositingQuality = CompositingQuality.HighQuality;
g.SmoothingMode = SmoothingMode.HighQuality;
g.InterpolationMode = InterpolationMode.HighQualityBicubic;
g.DrawImage(img, new Rectangle(0, 0, newSize.Width, newSize.Height), 0, 0, img.Width, img.Height, GraphicsUnit.Pixel);
g.Dispose();
EncoderParameters encoderParams = new EncoderParameters();
long[] quality = new long[1];
quality[0] = 100;
EncoderParameter encoderParam = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, quality);
encoderParams.Param[0] = encoderParam;
ImageCodecInfo[] arrayICI = ImageCodecInfo.GetImageEncoders();
ImageCodecInfo jpegICI = null;
for (int x = 0; x < arrayICI.Length; x++)
{
if (arrayICI[x].FormatDescription.Equals("JPEG"))
{
jpegICI = arrayICI[x]; //设置JPEG编码
break;
}
}
img.Dispose();
if (jpegICI != null)
{
outBmp.Save(newfile, System.Drawing.Imaging.ImageFormat.Jpeg);
}
outBmp.Dispose();
return(true);
}
catch
{
return(false);
}
}
public static System.Drawing.Bitmap GetThumbnail(System.Drawing.Bitmap b, int destHeight, int destWidth)
{
System.Drawing.Imaging.ImageFormat rawFormat = b.RawFormat;
int width = b.Width;
int height = b.Height;
int num;
int num2;
if (height > destHeight || width > destWidth)
{
if (width * destHeight < height * destWidth)
{
num = destWidth;
num2 = destWidth * height / width;
}
else
{
num2 = destHeight;
num = width * destHeight / height;
}
}
else
{
num = destWidth;
num2 = destHeight;
}
System.Drawing.Bitmap bitmap = new System.Drawing.Bitmap(destWidth, destHeight);
System.Drawing.Graphics graphics = System.Drawing.Graphics.FromImage(bitmap);
graphics.Clear(System.Drawing.Color.Transparent);
graphics.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
graphics.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
graphics.DrawImage(b, new System.Drawing.Rectangle((destWidth - num) / 2, (destHeight - num2) / 2, num, num2), 0, 0, b.Width, b.Height, System.Drawing.GraphicsUnit.Pixel);
graphics.Dispose();
System.Drawing.Imaging.EncoderParameters encoderParameters = new System.Drawing.Imaging.EncoderParameters();
long[] value = new long[]
{
100L
};
System.Drawing.Imaging.EncoderParameter encoderParameter = new System.Drawing.Imaging.EncoderParameter(System.Drawing.Imaging.Encoder.Quality, value);
encoderParameters.Param[0] = encoderParameter;
b.Dispose();
return(bitmap);
}
public static Image ZoomImage(Image sourceImage, int targetWidth, int targetHeight)
{
try
{
int width;
int height;
System.Drawing.Imaging.ImageFormat format = sourceImage.RawFormat;
Bitmap targetPicture = new Bitmap(targetWidth, targetHeight);
Graphics g = Graphics.FromImage(targetPicture);
g.Clear(Color.White);
if (sourceImage.Width > targetWidth && sourceImage.Height <= targetHeight)
{
width = targetWidth;
height = (width * sourceImage.Height) / sourceImage.Width;
}
else if (sourceImage.Width <= targetWidth && sourceImage.Height > targetHeight)
{
height = targetHeight;
width = (height * sourceImage.Width) / sourceImage.Height;
}
else if (sourceImage.Width <= targetWidth && sourceImage.Height <= targetHeight)
{
width = sourceImage.Width;
height = sourceImage.Height;
}
else
{
width = targetWidth;
height = (width * sourceImage.Height) / sourceImage.Width;
if (height > targetHeight)
{
height = targetHeight;
width = (height * sourceImage.Width) / sourceImage.Height;
}
}
g.DrawImage(sourceImage, (targetWidth - width) / 2, (targetHeight - height) / 2, width, height);
sourceImage.Dispose();
return(targetPicture);
}
catch (Exception ee)
{ throw ee; }
}
public static byte[] ResizeImage(Stream imageStream, System.Drawing.Imaging.ImageFormat format)
{
System.Drawing.Image orignImage = System.Drawing.Image.FromStream(imageStream);
byte[] result;
System.Drawing.Image resized;
if (orignImage.Height > GlobalSetting.MaxImageHeight || orignImage.Width > GlobalSetting.MaxImageWidth)
{
resized = ResizeImage(orignImage, new System.Drawing.Size(GlobalSetting.MaxImageWidth, GlobalSetting.MaxImageHeight), true);
}
else
{
resized = orignImage;
}
MemoryStream memStream = new MemoryStream();
resized.Save(memStream, format);
result = memStream.ToArray();
return(result);
}
public static bool LoadImg(string saveimgname, string imgurl)
{
WebRequest wreq = WebRequest.Create(imgurl);
HttpWebResponse wresp = (HttpWebResponse)wreq.GetResponse();
Stream s = wresp.GetResponseStream();
System.Drawing.Image img;
img = System.Drawing.Image.FromStream(s);
try
{
if (img != null)
{
FileInfo f = new FileInfo(saveimgname);
if (!Directory.Exists(f.DirectoryName))
{
Directory.CreateDirectory(f.DirectoryName);
}
System.Drawing.Imaging.ImageFormat iformat = KImage.GetImageType(imgurl);
if (iformat != null)
{
img.Save(saveimgname, iformat);
}
else
{
img.Save(saveimgname);
}
}
if (s != null)
{
s.Close();
}
return(true);
}
catch (Exception e)
{
if (s != null)
{
s.Close();
}
return(false);
}
}
//Función auxiliar para obtener la extensión del fichero a guardar según el formato de imagen.
private string getExtension(System.Drawing.Imaging.ImageFormat format)
{
string ext = "";
if (format == ImageFormat.Png)
{
ext = "png";
}
else if (format == ImageFormat.Jpeg)
{
ext = "jpg";
}
else if (format == ImageFormat.Wmf)
{
ext = "wmf";
}
return(ext);
}
private void _WriteBitmap(Stream stream, GDIIMAGEFORMAT fmt, System.Drawing.Bitmap tmp)
{
var customOptions = false;
customOptions |= _Quality.HasValue;
if (!customOptions)
{
tmp.Save(stream, fmt);
return;
}
var encoder = GetEncoder(fmt);
using (var ppp = new EncoderParameters(1))
{
ppp.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, (long)_Quality.Value);
tmp.Save(stream, encoder, ppp);
}
}
public static string ConvertImageToText(Image image, System.Drawing.Imaging.ImageFormat format)
{
//using (MemoryStream ms = new MemoryStream())
//{
// // Convert Image to byte[]
// image.Save(ms, format);
// byte[] imageBytes = ms.ToArray();
// // Convert byte[] to Base64 String
// string base64String = Convert.ToBase64String(imageBytes);
// return base64String;
//}
using (MemoryStream memoryStream = new MemoryStream())
{
image.Save(memoryStream, ImageFormat.Png);
byte[] bitmapBytes = memoryStream.GetBuffer();
return(Convert.ToBase64String(bitmapBytes));
}
}
/// <summary>
/// Guarda una imagen a fichero con un formato determinado indicado como parámetro.
/// </summary>
/// <param name="filePath">Ruta del fichero donde se guardará la imagen.</param>
/// <param name="format">Formato con el que se escribirá la imagen.</param>
public void SaveImage(string filePath, System.Drawing.Imaging.ImageFormat format)
{
if (data != null)
{
MemoryStream stream = new MemoryStream(data, 0, data.Length);
//System.Drawing.Imaging.Metafile metafile = new System.Drawing.Imaging.Metafile(stream);
//Escribir directamente el array de bytes a un fichero ".jpg"
//FileStream fs = new FileStream("c:\\prueba.jpg", FileMode.CreateNew);
//BinaryWriter w = new BinaryWriter(fs);
//w.Write(image,0,imageSize);
//w.Close();
//fs.Close();
//Escribir a un fichero cualquier tipo de imagen
Bitmap bitmap = new Bitmap(stream);
bitmap.Save(filePath, format);
}
}
public override void Save(Stream stream, ImageFormat format)
{
Android.Graphics.Bitmap.CompressFormat compressFormat;
if (format.Equals(ImageFormat.Jpeg))
{
compressFormat = Android.Graphics.Bitmap.CompressFormat.Jpeg;
}
else if (format.Equals(ImageFormat.Png))
{
compressFormat = Android.Graphics.Bitmap.CompressFormat.Png;
}
else
{
throw new ArgumentOutOfRangeException("format", format, "Only supported formats are JPEG and PNG");
}
var androidBitmap = (Android.Graphics.Bitmap) this;
androidBitmap.Compress(compressFormat, 100, stream);
}
/// <summary>
/// 图片转二进制
/// </summary>
/// <param name="image">图片对象</param>
/// <param name="imageFormat">后缀名</param>
/// <returns></returns>
public static byte[] ImageToBytes(Image image, System.Drawing.Imaging.ImageFormat imageFormat)
{
if (image == null)
{
return(null);
}
byte[] data;
using (MemoryStream ms = new MemoryStream())
{
using (Bitmap bitmap = new Bitmap(image))
{
bitmap.Save(ms, imageFormat);
ms.Position = 0;
data = new byte[ms.Length];
ms.Read(data, 0, Convert.ToInt32(ms.Length));
ms.Flush();
}
}
return(data);
}
private void buttonSave_Click(object sender, EventArgs e)
{
try
{
if (DialogResult.OK != saveDialog.ShowDialog())
{
return;
}
System.Drawing.Imaging.ImageFormat format = System.Drawing.Imaging.ImageFormat.Png;
if (saveDialog.FileName.ToLower().EndsWith(".jpg"))
{
format = System.Drawing.Imaging.ImageFormat.Jpeg;
}
if (saveDialog.FileName.ToLower().EndsWith(".jpeg"))
{
format = System.Drawing.Imaging.ImageFormat.Jpeg;
}
else if (saveDialog.FileName.ToLower().EndsWith(".bmp"))
{
format = System.Drawing.Imaging.ImageFormat.Bmp;
}
else if (saveDialog.FileName.ToLower().EndsWith(".png"))
{
format = System.Drawing.Imaging.ImageFormat.Png;
}
else if (saveDialog.FileName.ToLower().EndsWith(".gif"))
{
format = System.Drawing.Imaging.ImageFormat.Gif;
}
Bitmap bmp = new Bitmap(picture.Image);
bmp.SetResolution(picture.Image.HorizontalResolution, picture.Image.VerticalResolution);
bmp.Save(saveDialog.FileName, format);
}
catch (System.Exception ex)
{
MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
/// <summary>
/// 放大图像
/// </summary>
/// <param name="b">原始图像</param>
/// <param name="destHeight">目标高度</param>
/// <param name="destWidth">目标宽度</param>
/// <returns></returns>
public static Bitmap EnlargeImage(Image b, float destHeight, float destWidth, bool isDispose = false)
{
System.Drawing.Image imgSource = b;
System.Drawing.Imaging.ImageFormat thisFormat = imgSource.RawFormat;
float sW = 0, sH = 0;
// 按比例缩放
int sWidth = imgSource.Width;
int sHeight = imgSource.Height;
if ((sWidth * destHeight) > (sHeight * destWidth))
{
sW = destWidth;
sH = (destWidth * sHeight) / sWidth;
}
else
{
sH = destHeight;
sW = (sWidth * destHeight) / sHeight;
}
Bitmap outBmp = new Bitmap((int)destWidth, (int)destHeight);
Graphics g = Graphics.FromImage(outBmp);
g.Clear(Color.Transparent);
// 设置画布的描绘质量
g.CompositingQuality = CompositingQuality.HighQuality;
g.SmoothingMode = SmoothingMode.HighQuality;
g.InterpolationMode = InterpolationMode.HighQualityBicubic;
g.DrawImage(imgSource, new Rectangle((int)((destWidth - sW) / 2), (int)((destHeight - sH) / 2), (int)sW, (int)sH), 0, 0, imgSource.Width, imgSource.Height, GraphicsUnit.Pixel);
g.Dispose();
//// 以下代码为保存图片时，设置压缩质量
//EncoderParameters encoderParams = new EncoderParameters();
//long[] quality = new long[1];
//quality[0] = 100;
//EncoderParameter encoderParam = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, quality);
//encoderParams.Param[0] = encoderParam;
if (isDispose)
{
imgSource.Dispose();
}
return(outBmp);
}
public static bool ResizeAndSaveImageProporcional(string pathImageTemp, byte[] file, int MaxWidth, int MaxHeight)
{
bool objReturn = false;
try
{
MemoryStream imageStream = new MemoryStream(file);
System.Drawing.Image fullSizeImg = System.Drawing.Image.FromStream(imageStream);
System.Drawing.Image AdjustedImage = ResizeImageProporcional(fullSizeImg, MaxWidth, MaxHeight);
System.Drawing.Imaging.ImageFormat imageFormat = System.Drawing.Imaging.ImageFormat.Jpeg;
if (AdjustedImage != null)
{
switch (pathImageTemp.Substring(pathImageTemp.Length - 4))
{
case ".jpg":
imageFormat = System.Drawing.Imaging.ImageFormat.Jpeg;
break;
case ".png":
imageFormat = System.Drawing.Imaging.ImageFormat.Png;
break;
case ".gif":
imageFormat = System.Drawing.Imaging.ImageFormat.Gif;
break;
default:
imageFormat = System.Drawing.Imaging.ImageFormat.Jpeg;
break;
}
AdjustedImage.Save(pathImageTemp, imageFormat);
AdjustedImage.Dispose();
objReturn = true;
}
imageStream.Close();
imageStream.Dispose();
}
catch { }
return(objReturn);
}
internal static byte[] InsertImageIntoPDF(byte[] file, Image QrImage, Image FontImage, int QPositionX = 30, int QPositionY = 675, int QWidth = 100, int QHeight = 100, int FPositionX = 450, int FPositionY = 50, int FWidth = 130, int FHeight = 15)
{
try
{
var pdfReader = new iTextSharp.text.pdf.PdfReader(file);
using (var ms = new MemoryStream())
{
using (var stamp = new iTextSharp.text.pdf.PdfStamper(pdfReader, ms))
{
var size = pdfReader.GetPageSize(1);
var page = pdfReader.NumberOfPages;
#region QrCode
System.Drawing.Imaging.ImageFormat QrImgformat = FormatImage(QrImage);
var pdfQrImage = iTextSharp.text.Image.GetInstance(QrImage, QrImgformat);
pdfQrImage.Alignment = iTextSharp.text.Element.ALIGN_CENTER;
pdfQrImage.SetAbsolutePosition(QPositionX, QPositionY);
pdfQrImage.ScaleToFit(QWidth, QHeight);
stamp.GetOverContent(page).AddImage(pdfQrImage);
#endregion
#region Font
System.Drawing.Imaging.ImageFormat fontImageFormat = FormatImage(FontImage);
var pdfFontImage = iTextSharp.text.Image.GetInstance(FontImage, fontImageFormat);
pdfFontImage.Alignment = iTextSharp.text.Element.ALIGN_CENTER;
pdfFontImage.SetAbsolutePosition(FPositionX, FPositionY);
pdfFontImage.ScaleToFit(FWidth, FHeight);
stamp.GetOverContent(page).AddImage(pdfFontImage);
#endregion
}
ms.Flush();
ms.GetBuffer();
return(ms.ToArray());
}
}
catch (Exception)
{
throw;
}
}
/// <summary>
/// 图片转byte[]
/// </summary>
/// <param name="Bitmap"></param>
/// <param name="imageFormat"></param>
/// <returns></returns>
public static byte[] BitmapToBytes(Bitmap Bitmap, System.Drawing.Imaging.ImageFormat imageFormat)
{
MemoryStream ms = null;
try
{
ms = new MemoryStream();
Bitmap.Save(ms, imageFormat);
byte[] byteImage = new Byte[ms.Length];
byteImage = ms.ToArray();
return(byteImage);
}
catch (ArgumentNullException ex)
{
throw ex;
}
finally
{
ms.Close();
}
}
private void SaveScreenShot(string path, System.Drawing.Imaging.ImageFormat format)
{
var wb = Browser;
if (!IsKanColleLoaded)
{
// AddLog(3, "", "因为", "『艦これ』", "还没有载入，无法截图。");
System.Media.SystemSounds.Beep.Play();
return;
}
try
{
// f**k it, I'll do it on my own.
}
catch (Exception ex)
{
BrowserHost.AsyncRemoteRun(() =>
BrowserHost.Proxy.SendErrorReport(ex.ToString(), "スクリーンショットの保存時にエラーが発生しました。"));
System.Media.SystemSounds.Beep.Play();
}
}
