public void Extract(IHTMLDocument2 rootDoc)
{
Logger.Log("starting img src extractor...");
items = new List <ImageRakerThumbnailListViewItem>();
imageDic = new Dictionary <string, IHTMLElement>();
IHTMLDocument2[] docs = GetHtmlDocumentsByOle(rootDoc);
int index = 0;
foreach (IHTMLDocument2 d in docs)
{
IHTMLElementCollection images = d.images;
for (int i = 0; i < images.length; i++)
{
try
{
ExceptionTester.Instance.Throw("makethumbnail");
IHTMLElement elem = images.item(i, i) as IHTMLElement;
string src = elem.getAttribute("src", 0).ToString();
// 한번 추가된 이미지는 다시 추가하지 않는다.
if (!imageDic.ContainsKey(src))
{
IHTMLElementRender render = elem as IHTMLElementRender;
string filename = src.Substring(src.LastIndexOf('/') + 1);
int orgW = elem.offsetWidth;
int orgH = elem.offsetHeight;
if (orgW == 0 || orgH == 0)
{
// Logger.DLog(" skip image filename {0}. width or height is zero. {1}*{2}", filename, orgW, orgH);
continue;
}
// thumbnail은 null...
ImageRakerThumbnailListViewItem item = new ImageRakerThumbnailListViewItem(
filename, render, null, orgW, orgH, src, d.url, index++);
Logger.DLog("img src extractor - img found - filename: {0}, size: {1}*{2}, url: {3}",
filename, orgW, orgH, src);
items.Add(item);
imageDic.Add(src, elem);
}
}
catch (Exception ex)
{
Logger.Warn("unknown error in MakeThumbnailListViewImages!");
}
}
}
Logger.Info("img src extractor found {0} images", items.Count);
}
/// <summary>
/// 打印文件事件处理
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void printDocument_PrintPage(object sender, PrintPageEventArgs e)
{
if (BeforeRendering != null)
{
BeforeRendering(this, new PrintArgs("开始渲染"));
}
//获取打印句柄
IntPtr ptr = e.Graphics.GetHdc();
//重置浏览器窗口大小
if (_isResizeBrowser)
{
ResizeWebBrowser();
}
IHTMLDocument2 document = (IHTMLDocument2)this._webBrowser.Document.DomDocument;
if (document != null)
{
IHTMLElement element = (IHTMLElement)document.body;
if (element != null)
{
IHTMLElementRender RenderObject = (IHTMLElementRender)element;
if (RenderObject != null)
{
RenderObject.SetDocumentPrinter(_printDocument.DefaultPageSettings.PrinterSettings.PrinterName, ptr);
RenderObject.DrawToDC(ptr);
if (AfterRendering != null)
{
AfterRendering(this, new PrintArgs("结束渲染"));
}
}
else
{
if (RenderMissing != null)
{
RenderMissing(this, new PrintArgs("因RenderObject==null未被渲染"));
}
}
}
else
{
if (RenderMissing != null)
{
RenderMissing(this, new PrintArgs("因element==null未被渲染"));
}
}
}
else
{
if (RenderMissing != null)
{
RenderMissing(this, new PrintArgs("因document==null未被渲染"));
}
}
e.HasMorePages = false;
}
/// <summary>
/// 打印文档页面处理
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void PrintPage(object sender, PrintPageEventArgs e)
{
//触发打印页面开始事件
if (BeforeRendering != null)
{
BeforeRendering(this, new PrintArgs("开始渲染"));
}
//获取打印句柄
IntPtr ptr = e.Graphics.GetHdc();
//重置浏览器窗口大小与打印内容一致
ResizeWebBrowser();
//获取Dom对象
IHTMLDocument2 document = (IHTMLDocument2)this.WebBrowser.Document.DomDocument;
if (document != null)
{
//获取Dom中的Body元素
IHTMLElement bodyElement = document.body;
if (bodyElement != null)
{
IHTMLElementRender renderObject = (IHTMLElementRender)bodyElement;
//设置打印机并打印
renderObject.SetDocumentPrinter(PrintDocument.DefaultPageSettings.PrinterSettings.PrinterName, ptr);
renderObject.DrawToDC(ptr);
//触发本页打印结束事件
if (AfterRendering != null)
{
AfterRendering(this, new PrintArgs("结束渲染"));
}
}
else if (RenderMissing != null)
{
RenderMissing(this, new PrintArgs("因bodyElement==null未被渲染"));
}
}
else if (RenderMissing != null)
{
RenderMissing(this, new PrintArgs("因document==null未被渲染"));
}
//没有后继页面
e.HasMorePages = false;
}
public ImageRakerThumbnailListViewItem(string name, IHTMLElementRender render, Bitmap bm, int w, int h, string imgsrc, string refererUrl, int order)
: base(name, bm)
{
int dotPos = name.LastIndexOf('.');
if (dotPos != -1)
{
ext = name.Substring(dotPos + 1).ToLower();
}
else
{
ext = "";
}
this.render = render;
this.width = w;
this.height = h;
this.imgsrc = imgsrc;
this.refererUrl = refererUrl;
this.order = order;
}
public ImageRakerThumbnailListViewItem(string name, IHTMLElementRender render, Bitmap bm, int w, int h, string imgsrc, string refererUrl, int order)
: base(name, bm)
{
int dotPos = name.LastIndexOf('.');
if (dotPos != -1)
{
ext = name.Substring(dotPos + 1).ToLower();
}
else
{
ext = "";
}
this.render = render;
this.width = w;
this.height = h;
this.imgsrc = imgsrc;
this.refererUrl = refererUrl;
this.order = order;
}
void webBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{
if (!e.Url.Equals(webBrowser1.Url))
{
return;
}
// Get the renderer for the document body
mshtml.IHTMLDocument2 doc = (mshtml.IHTMLDocument2)webBrowser1.Document.DomDocument;
mshtml.IHTMLElement body = (mshtml.IHTMLElement)doc.body;
IHTMLElementRender render = (IHTMLElementRender)body;
// Render to bitmap
using (Bitmap bmp = new Bitmap(webBrowser1.ClientSize.Width, webBrowser1.ClientSize.Height)) {
using (Graphics gr = Graphics.FromImage(bmp)) {
IntPtr hdc = gr.GetHdc();
render.DrawToDC(hdc);
gr.ReleaseHdc();
}
bmp.Save("test.png");
System.Diagnostics.Process.Start("test.png");
}
}
public BitmapImage ConvertToBitmapImage(string htmlText)
{
BitmapImage bitmapImage = null;
WB.Width = (int)Ctrl.ActualWidth;
WB.Height = (int)Ctrl.ActualHeight;
WB.DocumentText = htmlText;
Application.DoEvents();
while (WB.ReadyState != WebBrowserReadyState.Complete)
{
Thread.Sleep(100);
}
// Get the renderer for the document body
mshtml.IHTMLDocument2 doc = (mshtml.IHTMLDocument2)WB.Document.DomDocument;
mshtml.IHTMLElement body = (mshtml.IHTMLElement)doc.body;
IHTMLElementRender render = (IHTMLElementRender)body;
// Render to bitmap
using (Bitmap bmp = new Bitmap(WB.Width, WB.Height)) {
using (Graphics gr = Graphics.FromImage(bmp)) {
IntPtr hdc = gr.GetHdc();
render.DrawToDC(hdc);
gr.ReleaseHdc();
}
MemoryStream memory = new MemoryStream();
bmp.Save(memory, ImageFormat.Png);
memory.Position = 0;
bitmapImage = new BitmapImage();
bitmapImage.BeginInit();
bitmapImage.CacheOption = BitmapCacheOption.OnLoad;
bitmapImage.StreamSource = memory;
bitmapImage.EndInit();
memory.Dispose();
memory = null;
}
return(bitmapImage);
}
