public byte[] GetZip()
{
if (!GetXaml())
return null;
MemoryStream ms = new MemoryStream();
_ZipStream = null;
ZipEntry ze;
try
{
ZipWrap.Init(); // initialize the zipping utility (if needed)
_ZipImages = new Dictionary<string, string>();
_ZipStream = new ZipOutputStream(ms);
// Need to build the Xaml
int pageno = 1;
foreach (fyiReporting.RDL.Page page in _Pages)
{
string xaml = GenerateXaml(page);
string zp = string.Format("pg_{0}.xaml", pageno++);
ze = new ZipEntry(zp);
_ZipStream.PutNextEntry(ze);
_ZipStream.Write(xaml);
}
// output some meta data
ze = new ZipEntry("meta.txt");
_ZipStream.PutNextEntry(ze);
_ZipStream.Write(string.Format("pagecount={0}&pagewidth={1}&pageheight={2}",
_Pages.Count, PixelsX(_Pages.PageWidth), PixelsY(_Pages.PageHeight))); // to do more than one use & e.g. pagecount=1&pagewidth=121
// all done
_ZipStream.Finish();
_ZipStream = null;
return ms.ToArray();
}
finally
{
if (_ZipStream != null)
{
_ZipStream.Finish();
_ZipStream = null;
}
ms.Close();
_ZipImages = null; // no longer need zipimage cache
}
}
/// <summary>
/// SaveZipImage saves the bytes to a zip entry and returns the name. The passed cache is used
/// to remember file names so that the same image isn't repeatedly saved.
/// </summary>
/// <param name="zipCache"></param>
/// <param name="_ZipStream"></param>
/// <param name="pi"></param>
/// <returns></returns>
internal static string SaveZipImage(Dictionary<string, string> zipCache, ZipOutputStream _ZipStream, PageImage pi)
{
string imgname;
imgname = (pi.Name != null)?
string.Format("{0}.{1}", pi.Name, GetExtension(pi.ImgFormat)):
string.Format("i_{0}.{1}", zipCache.Count + 1, GetExtension(pi.ImgFormat));
if (zipCache.ContainsKey(imgname))
return imgname;
zipCache.Add(imgname, imgname);
ZipEntry ze = new ZipEntry(imgname);
_ZipStream.PutNextEntry(ze);
_ZipStream.Write(pi.ImageData, 0, pi.ImageData.Length);
return imgname;
}
internal void WriteExcel(Stream str)
{
ZipOutputStream zip = null;
try
{
zip = new ZipOutputStream(str);
ZipEntry ze = new ZipEntry("[Content_Types].xml");
zip.PutNextEntry(ze);
zip.Write(CONTENT_TYPES);
// docProps directory
ze = new ZipEntry("docProps/");
zip.PutNextEntry(ze);
ze = new ZipEntry("docProps/app.xml");
zip.PutNextEntry(ze);
zip.Write(APPXML);
ze = new ZipEntry("docProps/core.xml");
zip.PutNextEntry(ze);
zip.Write(COREXML);
// xl directory
ze = new ZipEntry("xl/");
zip.PutNextEntry(ze);
ze = new ZipEntry("xl/sharedStrings.xml");
zip.PutNextEntry(ze);
WriteStringCache(zip);
ze = new ZipEntry("xl/styles.xml");
zip.PutNextEntry(ze);
WriteStyles(zip);
ze = new ZipEntry("xl/workbook.xml");
zip.PutNextEntry(ze);
WriteWorkbook(zip);
// xl/theme
ze = new ZipEntry("xl/theme/");
zip.PutNextEntry(ze);
ze = new ZipEntry("xl/theme/theme1.xml");
zip.PutNextEntry(ze);
WriteTheme(zip);
// xl/worksheets
ze = new ZipEntry("xl/worksheets/");
zip.PutNextEntry(ze);
if (_Sheets.Count == 0)
{ // output an empty work sheet
ze = new ZipEntry("xl/worksheets/sheet1.xml");
zip.PutNextEntry(ze);
WriteEmptyWorksheet(zip);
}
else
{
// output the spreadsheets
foreach (SheetInfo sinfo in _Sheets)
{
string sname = string.Format("xl/worksheets/{0}.xml", sinfo.Name);
ze = new ZipEntry(sname);
zip.PutNextEntry(ze);
WriteData(zip, sinfo.Grid); // here's where the meat of the data goes
}
}
// xl/_rels
ze = new ZipEntry("xl/_rels/");
zip.PutNextEntry(ze);
ze = new ZipEntry("xl/_rels/workbook.xml.rels");
zip.PutNextEntry(ze);
WriteWorkbookRels(zip);
// _rels directory
ze = new ZipEntry("_rels/");
zip.PutNextEntry(ze);
ze = new ZipEntry("_rels/.rels");
zip.PutNextEntry(ze);
zip.Write(RELS_RELS);
}
finally
{
if (zip != null)
{
zip.Finish();
}
}
}
public void PutNextEntry(ZipEntry ze)
{
object[] args = new object[] { ze.Value };
_PutNextEntry.Invoke(_ZipOutputStream, args);
}
public void PutNextEntry(ZipEntry ze)
{
object[] args = new object[] { ze.Value };
_PutNextEntry.Invoke(_ZipOutputStream, args);
}