/// <summary>
/// Initializes the PDF exporting to a new file. After calling this method
/// you can call <see cref="ExportSheet()"/> to export different xls files to the same pdf.
/// You should always end the document with a call to <see cref="EndExport"/>
/// </summary>
/// <param name="pdfStream">Stream that will contain the new pdf file.</param>
public void BeginExport(Stream pdfStream)
{
FCanceled = false;
PdfCanvas = new PdfWriter();
PdfCanvas.Sign(FSignature);
PdfCanvas.Compress = FCompress;
PdfCanvas.Kerning = FKerning;
PdfCanvas.Properties = FProperties;
PdfCanvas.GetFontData = GetFontData;
PdfCanvas.GetFontFolder = GetFontFolder;
PdfCanvas.OnFontEmbed = OnFontEmbed;
PdfCanvas.FallbackFonts = FFallbackFonts;
CurrentTotalPage = 1;
FirstPageInSheet = 0;
FPdfStream = pdfStream;
FRenderer.CreateFontCache();
FirstPage = true;
FProgress.Clear();
}
/// <summary>
/// Raises the BeginPrint event. It is called after the Print method is called and before the first page of the document prints.
/// </summary>
/// <param name="e">A <see cref="PrintEventArgs"/> that contains the event data.</param>
/// <remarks>
/// This method is overridden to print an Excel document.
/// Before doing its own initialization, it will call <see cref="PrintDocument.OnBeginPrint"/> so you can do your own.
/// </remarks>
protected override void OnBeginPrint(PrintEventArgs e)
{
base.OnBeginPrint(e);
SaveActiveSheet = Workbook.ActiveSheet;
CurrentSheetPage = 1;
CurrentPrintArea = 0;
CurrentWorkbookPage = 1;
TotalSheetPages = 0;
if (AllVisibleSheets)
{
GotoFirstVisibleSheet();
}
PagesToPrint = 0;
FRenderer.CreateFontCache();
Workbook.Recalc(false);
}
/// <summary>
/// Exports the associated xls workbook to a graphics stream. You need to provide a
/// Graphics object with the correct dimensions. (To get the needed dimensions, use <see cref="GetRealPageSize()"/>
/// </summary>
/// <param name="imgData">Graphics where the image will be stored. Set it to null to skip the page.</param>
/// <param name="exportInfo"> Information needed to export, cached for speed. The first time you call this method (or when you change xls.ActiveSheet), make exportInfo=null</param>
public bool ExportNext(Graphics imgData, ref TImgExportInfo exportInfo)
{
FRenderer.CreateFontCache();
try
{
Bitmap bmp = null;
try
{
if (imgData == null)
{
bmp = BitmapConstructor.CreateBitmap(1, 1);
imgData = Graphics.FromImage(bmp);
imgData.PageUnit = GraphicsUnit.Point;
}
IFlxGraphics aCanvas = new GdiPlusGraphics(imgData);
GraphicsUnit OriginalUnits = imgData.PageUnit;
try
{
imgData.PageUnit = GraphicsUnit.Point;
FRenderer.SetCanvas(aCanvas);
try
{
if (exportInfo == null)
{
exportInfo = GetExportInfo(aCanvas);
}
exportInfo.IncCurrentPage();
if (exportInfo.CurrentPage > exportInfo.TotalPages)
{
return(false);
}
int SaveActiveSheet = Workbook.ActiveSheet;
try
{
Workbook.ActiveSheet = exportInfo.CurrentSheet;
int CurrentLogicalPage = -1;
if (ResetPageNumberOnEachSheet)
{
CurrentLogicalPage = exportInfo.ActiveSheet.FCurrentPage;
}
else
{
CurrentLogicalPage = exportInfo.CurrentPage;
}
TOneImgExportInfo OneResult = exportInfo.ActiveSheet;
if (LastInitSheet != exportInfo.CurrentSheet)
{
TXlsCellRange ra; int p; RectangleF[] r;
FRenderer.InitializePrint(aCanvas, OneResult.PageBounds, OneResult.PageBounds, OneResult.PrintRanges, out r, out p, out ra);
LastInitSheet = exportInfo.CurrentSheet;
}
if (bmp == null)
{
OnBeforePaint(new ImgPaintEventArgs(imgData, CalcPageBounds(exportInfo.ActiveSheet.PageBounds), exportInfo.CurrentPage, exportInfo.ActiveSheet.CurrentPage, exportInfo.TotalPages));
}
FRenderer.GenericPrint(aCanvas, OneResult.PageBounds, OneResult.PrintRanges, CurrentLogicalPage,
OneResult.PaintClipRect, exportInfo.TotalLogicalPages(ResetPageNumberOnEachSheet), bmp == null,
OneResult.PagePrintRange, ref OneResult.FCurrentPrintArea);
aCanvas.ResetClip();
if (bmp == null)
{
OnAfterPaint(new ImgPaintEventArgs(imgData, CalcPageBounds(exportInfo.ActiveSheet.PageBounds), exportInfo.CurrentPage, exportInfo.ActiveSheet.CurrentPage, exportInfo.TotalPages));
}
}
finally
{
Workbook.ActiveSheet = SaveActiveSheet;
}
}
finally
{
FRenderer.SetCanvas(null);
}
}
finally
{
imgData.PageUnit = OriginalUnits;
}
}
finally
{
if (bmp != null)
{
bmp.Dispose();
imgData.Dispose();
}
}
}
finally
{
FRenderer.DisposeFontCache();
}
return(true);
}
