public void RunPages(Pages pgs) // this does all the work
{
int pageNo = 1;
// STEP: processing a page.
foreach (Page p in pgs)
{
System.DrawingCore.Bitmap bm = CreateObjectBitmap();
System.DrawingCore.Graphics g = System.DrawingCore.Graphics.FromImage(bm);
g.PageUnit = GraphicsUnit.Pixel;
g.ScaleTransform(1, 1);
DpiX = g.DpiX;
DpiY = g.DpiY;
// STEP: Fill backgroup
g.FillRectangle(Brushes.White, 0F, 0F, (float)bm.Width, (float)bm.Height);
// STEP: draw page to bitmap
ProcessPage(g, p);
// STEP:
System.DrawingCore.Bitmap bm2 = ConvertToBitonal(bm);
if (pageNo == 1)
{
_tif = bm2;
}
SaveBitmap(_tif, bm2, tw, pageNo);
pageNo++;
}
if (_tif != null)
{
// STEP: prepare encoder parameters
EncoderParameters encoderParams = new EncoderParameters(1);
encoderParams.Param[0] = new EncoderParameter(
System.DrawingCore.Imaging.Encoder.SaveFlag, (long)EncoderValue.Flush
);
// STEP:
_tif.SaveAdd(encoderParams);
}
return;
}
/// <summary>
/// 输出验证码
/// </summary>
/// <param name="checkCode"></param>
public static byte[] CreateImage(string checkCode)
{
int iwidth = (int)(checkCode.Length * 15);
System.DrawingCore.Bitmap image = new System.DrawingCore.Bitmap(iwidth, 20);
System.DrawingCore.Graphics g = System.DrawingCore.Graphics.FromImage(image);
g.Clear(System.DrawingCore.Color.White);
//定义颜色
Color[] c = { Color.Black, Color.Red, Color.DarkBlue, Color.Green, Color.Brown, Color.DarkCyan, Color.Purple };
//定义字体
string[] font = { "Times New Roman", "Microsoft Sans Serif", "MS Mincho", "Book Antiqua", "PMingLiU" };
Random rand = new Random();
//随机输出噪点
for (int i = 0; i < 50; i++)
{
int x = rand.Next(image.Width);
int y = rand.Next(image.Height);
g.DrawRectangle(new Pen(Color.LightGray, 0), x, y, 1, 1);
}
//输出不同字体和颜色的验证码字符
for (int i = 0; i < checkCode.Length; i++)
{
int cindex = rand.Next(7);
int findex = rand.Next(5);
Font f = new Font(font[findex], 10, FontStyle.Bold);
Brush b = new SolidBrush(c[cindex]);
int ii = 4;
if ((i + 1) % 2 == 0)
{
ii = 2;
}
g.DrawString(checkCode.Substring(i, 1), f, b, 3 + (i * 14), ii);
}
//画一个边框
g.DrawRectangle(new Pen(Color.Black, 0), 0, 0, image.Width - 1, image.Height - 1);
//输出到浏览器
System.IO.MemoryStream ms = new System.IO.MemoryStream();
image.Save(ms, System.DrawingCore.Imaging.ImageFormat.Jpeg);
byte[] buffer = ms.ToArray();
g.Dispose();
image.Dispose();
return(buffer);
}
/// <summary>
/// 生成图片缩略图
/// </summary>
/// <param name="sourcePath">图片路径</param>
/// <param name="newPath">新图片路径</param>
/// <param name="width">宽度</param>
/// <param name="height">高度</param>
public static void MakeThumbnail(string sourcePath, string newPath, int width, int height)
{
System.DrawingCore.Image ig = System.DrawingCore.Image.FromFile(sourcePath);
int towidth = width;
int toheight = height;
int x = 0;
int y = 0;
int ow = ig.Width;
int oh = ig.Height;
if ((double)ig.Width / (double)ig.Height > (double)towidth / (double)toheight)
{
oh = ig.Height;
ow = ig.Height * towidth / toheight;
y = 0;
x = (ig.Width - ow) / 2;
}
else
{
ow = ig.Width;
oh = ig.Width * height / towidth;
x = 0;
y = (ig.Height - oh) / 2;
}
System.DrawingCore.Image bitmap = new System.DrawingCore.Bitmap(towidth, toheight);
System.DrawingCore.Graphics g = System.DrawingCore.Graphics.FromImage(bitmap);
g.InterpolationMode = System.DrawingCore.Drawing2D.InterpolationMode.High;
g.SmoothingMode = System.DrawingCore.Drawing2D.SmoothingMode.HighQuality;
g.Clear(System.DrawingCore.Color.Transparent);
g.DrawImage(ig, new System.DrawingCore.Rectangle(0, 0, towidth, toheight), new System.DrawingCore.Rectangle(x, y, ow, oh), GraphicsUnit.Pixel);
try
{
bitmap.Save(newPath, System.DrawingCore.Imaging.ImageFormat.Jpeg);
}
catch (Exception ex)
{
throw ex;
}
finally
{
ig.Dispose();
bitmap.Dispose();
g.Dispose();
}
}
/// <summary>
/// 生成缩略图到MemoryStream
/// </summary>
/// <param name="SourceFile"></param>
/// <param name="intThumbWidth"></param>
/// <param name="intThumbHeight"></param>
/// <param name="gap">是否补足空白</param>
public static MemoryStream ThumbImageToStream(string SourceFile, int intThumbWidth, int intThumbHeight, bool gap = true)
{
MemoryStream ms = new MemoryStream();
//原图加载
using (System.DrawingCore.Image sourceImage = System.DrawingCore.Image.FromFile(SourceFile))
{
//是否显示原图
if (intThumbWidth == 0 && intThumbHeight == 0)
{
sourceImage.Save(ms, System.DrawingCore.Imaging.ImageFormat.Png);
return(ms);
}
//原图宽度和高度
int width = sourceImage.Width;
int height = sourceImage.Height;
int smallWidth;
int smallHeight;
//如果原图长宽均比缩略图的要小则返回原stream
if (width <= intThumbWidth && height <= intThumbHeight)
{
sourceImage.Save(ms, System.DrawingCore.Imaging.ImageFormat.Png);
return(ms);
}
//获取第一张绘制图的大小,(比较 原图的宽/缩略图的宽 和 原图的高/缩略图的高)
if (((decimal)width) / height <= ((decimal)intThumbWidth) / intThumbHeight)
{
smallWidth = intThumbHeight * width / height;
smallHeight = intThumbHeight;
}
else
{
smallWidth = intThumbWidth;
smallHeight = intThumbWidth * height / width;
}
Image newimg = sourceImage.GetThumbnailImage(smallWidth, smallHeight, null, IntPtr.Zero);
//使用原宽高比输出，不补足空白
if (!gap)
{
newimg.Save(ms, System.DrawingCore.Imaging.ImageFormat.Png);
return(ms);
}
//新建一个图板,以最小等比例压缩大小绘制原图
using (System.DrawingCore.Image bitmap = new System.DrawingCore.Bitmap(smallWidth, smallHeight))
{
//绘制中间图
using (System.DrawingCore.Graphics g = System.DrawingCore.Graphics.FromImage(bitmap))
{
//高清,平滑
g.InterpolationMode = System.DrawingCore.Drawing2D.InterpolationMode.High;
g.SmoothingMode = System.DrawingCore.Drawing2D.SmoothingMode.HighQuality;
g.Clear(Color.Transparent);
g.DrawImage(
sourceImage,
new System.DrawingCore.Rectangle(0, 0, smallWidth, smallHeight),
new System.DrawingCore.Rectangle(0, 0, width, height),
System.DrawingCore.GraphicsUnit.Pixel
);
}
//新建一个图板,以缩略图大小绘制中间图
using (System.DrawingCore.Image bitmap1 = new System.DrawingCore.Bitmap(intThumbWidth, intThumbHeight))
{
//绘制缩略图
using (System.DrawingCore.Graphics g = System.DrawingCore.Graphics.FromImage(bitmap1))
{
//高清,平滑
g.InterpolationMode = System.DrawingCore.Drawing2D.InterpolationMode.High;
g.SmoothingMode = System.DrawingCore.Drawing2D.SmoothingMode.HighQuality;
g.Clear(Color.Transparent);
int lwidth = (smallWidth - intThumbWidth) / 2;
int bheight = (smallHeight - intThumbHeight) / 2;
g.DrawImage(bitmap, new Rectangle(0, 0, intThumbWidth, intThumbHeight), lwidth, bheight, intThumbWidth, intThumbHeight, GraphicsUnit.Pixel);
g.Dispose();
bitmap1.Save(ms, System.DrawingCore.Imaging.ImageFormat.Png);
return(ms);
}
}
}
}
}
private void DrawImageSized(PageImage pi, System.DrawingCore.Image im, System.DrawingCore.Graphics g, System.DrawingCore.RectangleF r)
{
float height, width; // some work variables
StyleInfo si = pi.SI;
// adjust drawing rectangle based on padding
System.DrawingCore.RectangleF r2 = new System.DrawingCore.RectangleF(r.Left + PixelsX(si.PaddingLeft),
r.Top + PixelsY(si.PaddingTop),
r.Width - PixelsX(si.PaddingLeft + si.PaddingRight),
r.Height - PixelsY(si.PaddingTop + si.PaddingBottom));
System.DrawingCore.Rectangle ir; // int work rectangle
switch (pi.Sizing)
{
case ImageSizingEnum.AutoSize:
// Note: GDI+ will stretch an image when you only provide
// the left/top coordinates. This seems pretty stupid since
// it results in the image being out of focus even though
// you don't want the image resized.
if (g.DpiX == im.HorizontalResolution &&
g.DpiY == im.VerticalResolution)
{
ir = new System.DrawingCore.Rectangle(Convert.ToInt32(r2.Left), Convert.ToInt32(r2.Top),
im.Width, im.Height);
}
else
{
ir = new System.DrawingCore.Rectangle(Convert.ToInt32(r2.Left), Convert.ToInt32(r2.Top),
Convert.ToInt32(r2.Width), Convert.ToInt32(r2.Height));
}
g.DrawImage(im, ir);
break;
case ImageSizingEnum.Clip:
Region saveRegion = g.Clip;
Region clipRegion = new Region(g.Clip.GetRegionData());
clipRegion.Intersect(r2);
g.Clip = clipRegion;
if (g.DpiX == im.HorizontalResolution &&
g.DpiY == im.VerticalResolution)
{
ir = new System.DrawingCore.Rectangle(Convert.ToInt32(r2.Left), Convert.ToInt32(r2.Top),
im.Width, im.Height);
}
else
{
ir = new System.DrawingCore.Rectangle(Convert.ToInt32(r2.Left), Convert.ToInt32(r2.Top),
Convert.ToInt32(r2.Width), Convert.ToInt32(r2.Height));
}
g.DrawImage(im, ir);
g.Clip = saveRegion;
break;
case ImageSizingEnum.FitProportional:
float ratioIm = (float)im.Height / (float)im.Width;
float ratioR = r2.Height / r2.Width;
height = r2.Height;
width = r2.Width;
if (ratioIm > ratioR)
{ // this means the rectangle width must be corrected
width = height * (1 / ratioIm);
}
else if (ratioIm < ratioR)
{ // this means the ractangle height must be corrected
height = width * ratioIm;
}
r2 = new RectangleF(r2.X, r2.Y, width, height);
g.DrawImage(im, r2);
break;
case ImageSizingEnum.Fit:
default:
g.DrawImage(im, r2);
break;
}
return;
}
private void ProcessHtml(PageTextHtml pth, System.DrawingCore.Graphics g)
{
pth.Build(g); // Builds the subobjects that make up the html
this.ProcessPage(g, pth);
}
//drawstring justified with paragraph format
public static void DrawStringJustified(System.DrawingCore.Graphics graphics, string s, System.DrawingCore.Font font, System.DrawingCore.Brush brush, System.DrawingCore.RectangleF layoutRectangle, char paragraphFormat)
{
try
{
//save the current state of the graphics handle
GraphicsState graphicsState = graphics.Save();
//obtain the font height to be used as line height
double lineHeight = (double)Math.Round(font.GetHeight(graphics), 1);
//string builder to format the text
StringBuilder text = new StringBuilder(s);
var originalFont = new System.DrawingCore.Font(font.FontFamily, font.Size, font.Style);
//adjust the text string to ease detection of carriage returns
text = text.Replace("\r\n", " <CR> ");
text = text.Replace("\r", " <CR> ");
text.Append(" <CR> ");
//ensure measure string will bring the best measures possible (antialias)
graphics.TextRenderingHint = TextRenderingHint.AntiAlias;
//create a string format object with the generic typographic to obtain the most accurate string measurements
//strange, but the recommended for this case is to use a "cloned" stringformat
var stringFormat = (System.DrawingCore.StringFormat)System.DrawingCore.StringFormat.GenericTypographic.Clone();
//allow the correct measuring of spaces
stringFormat.FormatFlags = System.DrawingCore.StringFormatFlags.MeasureTrailingSpaces;
//create a stringformat for leftalignment
System.DrawingCore.StringFormat leftAlignHandle = new System.DrawingCore.StringFormat();
leftAlignHandle.LineAlignment = System.DrawingCore.StringAlignment.Near;
//create a stringformat for rightalignment
System.DrawingCore.StringFormat rightAlignHandle = new System.DrawingCore.StringFormat();
rightAlignHandle.LineAlignment = System.DrawingCore.StringAlignment.Far;
//measure space for the given font
var stringSize = graphics.MeasureString(" ", font, layoutRectangle.Size, stringFormat);
double spaceWidth = stringSize.Width + 1;
//measure paragraph format for the given font
double paragraphFormatWidth = 0;
if (paragraphFormat != ' ')
{
var paragraphFormatSize = graphics.MeasureString(paragraphFormat.ToString(), new System.DrawingCore.Font(font.FontFamily, font.Size, System.DrawingCore.FontStyle.Regular), layoutRectangle.Size, stringFormat);
paragraphFormatWidth = paragraphFormatSize.Width;
}
//total word count
int totalWords = Regex.Matches(text.ToString(), " ").Count;
//array of words
ArrayList words = new ArrayList();
//measure each word
int n = 0;
while (true)
{
//original word
string word = Regex.Split(text.ToString(), " ").GetValue(n).ToString();
//add to words array the word without tags
words.Add(new Word(word.Replace("<b>", "").Replace("</b>", "").Replace("<i>", "").Replace("</i>", "")));
//marque to start bolding or/and italic
if (word.ToLower().Contains("<b>") && word.ToLower().Contains("<i>"))
{
font = new System.DrawingCore.Font(originalFont.FontFamily, originalFont.Size, System.DrawingCore.FontStyle.Bold & System.DrawingCore.FontStyle.Italic);
}
else if (word.ToLower().Contains("<b>"))
{
font = new System.DrawingCore.Font(originalFont.FontFamily, originalFont.Size, System.DrawingCore.FontStyle.Bold);
}
else if (word.ToLower().Contains("<i>"))
{
font = new System.DrawingCore.Font(originalFont.FontFamily, originalFont.Size, System.DrawingCore.FontStyle.Italic);
}
Word currentWord = (Word)words[n];
currentWord.StartBold = word.ToLower().Contains("<b>");
currentWord.StopBold = word.ToLower().Contains("</b>");
currentWord.StartItalic = word.ToLower().Contains("<i>");
currentWord.StopItalic = word.ToLower().Contains("</i>");
//size of the word
var wordSize = graphics.MeasureString(currentWord.String, font, layoutRectangle.Size, stringFormat);
float wordWidth = wordSize.Width;
if (wordWidth > layoutRectangle.Width && currentWord.String != "<CR>")
{
int reduce = 1;
while (true)
{
int lengthChars = (int)Math.Round(currentWord.String.Length / (wordWidth / layoutRectangle.Width), 0) - reduce;
string cutWord = currentWord.String.Substring(0, lengthChars);
//the new size of the word
wordSize = graphics.MeasureString(cutWord, font, layoutRectangle.Size, stringFormat);
wordWidth = wordSize.Width;
//update the word string
((Word)words[n]).String = cutWord;
//add new word
if (wordWidth <= layoutRectangle.Width)
{
totalWords++;
words.Add(new Word("", 0,
currentWord.StartBold, currentWord.StopBold,
currentWord.StartItalic, currentWord.StopItalic));
text.Replace(currentWord.String, cutWord + " " + currentWord.String.Substring(lengthChars + 1), 0, 1);
break;
}
reduce++;
}
}
//update the word size
((Word)words[n]).Length = wordWidth;
//marque to stop bolding or/and italic
if (word.ToLower().Contains("</b>") && font.Style == System.DrawingCore.FontStyle.Italic)
{
font = new System.DrawingCore.Font(originalFont.FontFamily, originalFont.Size, System.DrawingCore.FontStyle.Italic);
}
else if (word.ToLower().Contains("</i>") && font.Style == System.DrawingCore.FontStyle.Bold)
{
font = new System.DrawingCore.Font(originalFont.FontFamily, originalFont.Size, System.DrawingCore.FontStyle.Bold);
}
else if (word.ToLower().Contains("</b>") || word.ToLower().Contains("</i>"))
{
font = new System.DrawingCore.Font(originalFont.FontFamily, originalFont.Size, System.DrawingCore.FontStyle.Regular);
}
n++;
if (n > totalWords - 1)
{
break;
}
}
//before we start drawing, its wise to restore ou graphics objecto to its original state
graphics.Restore(graphicsState);
//restore to font to the original values
font = new System.DrawingCore.Font(originalFont.FontFamily, originalFont.Size, originalFont.Style);
//start drawing word by word
int currentLine = 0;
for (int i = 0; i < totalWords; i++)
{
bool endOfSentence = false;
double wordsWidth = 0;
int wordsInLine = 0;
int j = i;
for (j = i; j < totalWords; j++)
{
if (((Word)words[j]).String == "<CR>")
{
endOfSentence = true;
break;
}
wordsWidth += ((Word)words[j]).Length + spaceWidth;
if (wordsWidth > layoutRectangle.Width && j > i)
{
wordsWidth = wordsWidth - ((Word)words[j]).Length - (spaceWidth * wordsInLine);
break;
}
wordsInLine++;
}
if (j > totalWords)
{
endOfSentence = true;
}
double widthOfBetween = 0;
if (endOfSentence)
{
widthOfBetween = spaceWidth;
}
else
{
widthOfBetween = (layoutRectangle.Width - wordsWidth) / (wordsInLine - 1);
}
double currentTop = layoutRectangle.Top + (int)(currentLine * lineHeight);
if (currentTop > (layoutRectangle.Height + layoutRectangle.Top))
{
i = totalWords;
break;
}
double currentLeft = layoutRectangle.Left;
bool lastWord = false;
for (int currentWord = 0; currentWord < wordsInLine; currentWord++)
{
bool loop = false;
if (((Word)words[i]).String == "<CR>")
{
i++;
loop = true;
}
if (!loop)
{
//last word in sentence
if (currentWord == wordsInLine && !endOfSentence)
{
lastWord = true;
}
if (wordsInLine == 1)
{
currentLeft = layoutRectangle.Left;
lastWord = false;
}
System.DrawingCore.RectangleF rectangleF;
System.DrawingCore.StringFormat stringFormatHandle;
if (lastWord)
{
rectangleF = new System.DrawingCore.RectangleF(layoutRectangle.Left, (float)currentTop, layoutRectangle.Width, (float)(currentTop + lineHeight));
stringFormatHandle = rightAlignHandle;
}
else
{
//lets zero size for word to drawstring auto-size de word
rectangleF = new System.DrawingCore.RectangleF((float)currentLeft, (float)currentTop, 0, 0);
stringFormatHandle = leftAlignHandle;
}
//start bolding and/or italic
if (((Word)words[i]).StartBold && ((Word)words[i]).StartItalic)
{
font = new System.DrawingCore.Font(originalFont.FontFamily, originalFont.Size, System.DrawingCore.FontStyle.Bold & System.DrawingCore.FontStyle.Italic);
}
else if (((Word)words[i]).StartBold)
{
font = new System.DrawingCore.Font(originalFont.FontFamily, originalFont.Size, System.DrawingCore.FontStyle.Bold);
}
else if (((Word)words[i]).StartItalic)
{
font = new System.DrawingCore.Font(originalFont.FontFamily, originalFont.Size, System.DrawingCore.FontStyle.Italic);
}
//draw the word
graphics.DrawString(((Word)words[i]).String, font, brush, rectangleF, stringFormatHandle);
//stop bolding and/or italic
if (((Word)words[i]).StopBold && font.Style == System.DrawingCore.FontStyle.Italic)
{
font = new System.DrawingCore.Font(originalFont.FontFamily, originalFont.Size, System.DrawingCore.FontStyle.Regular);
}
else if (((Word)words[i]).StopItalic && font.Style == System.DrawingCore.FontStyle.Bold)
{
font = new System.DrawingCore.Font(originalFont.FontFamily, originalFont.Size, System.DrawingCore.FontStyle.Bold);
}
else if (((Word)words[i]).StopBold || ((Word)words[i]).StopItalic)
{
font = new System.DrawingCore.Font(originalFont.FontFamily, originalFont.Size, System.DrawingCore.FontStyle.Regular);
}
//paragraph formating
if (endOfSentence && currentWord == wordsInLine - 1 && paragraphFormat != ' ')
{
currentLeft += ((Word)words[i]).Length;
//draw until end of line
while (currentLeft + paragraphFormatWidth <= layoutRectangle.Left + layoutRectangle.Width)
{
rectangleF = new System.DrawingCore.RectangleF((float)currentLeft, (float)currentTop, 0, 0);
//draw the paragraph format
graphics.DrawString(paragraphFormat.ToString(), font, brush, rectangleF, stringFormatHandle);
currentLeft += paragraphFormatWidth;
}
}
else
{
currentLeft += ((Word)words[i]).Length + widthOfBetween;
}
//go to next word
i++;
}
}
currentLine++;
if (i >= totalWords)
{
break;
}
//compensate endfor
if (((Word)words[i]).String != "<CR>")
{
i--;
}
}
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
}
//drawstring justified without paragraph format
public static void DrawStringJustified(System.DrawingCore.Graphics graphics, string s, System.DrawingCore.Font font, System.DrawingCore.Brush brush, System.DrawingCore.RectangleF layoutRectangle)
{
DrawStringJustified(graphics, s, font, brush, layoutRectangle, ' ');
}