/// <summary>
/// Clones a TImageExportInfo even if it is null.
/// </summary>
/// <param name="source"></param>
/// <returns></returns>
public static TOneImgExportInfo Clone(TOneImgExportInfo source)
{
if (source == null)
{
return(null);
}
TOneImgExportInfo Result = new TOneImgExportInfo();
Result.FCurrentPage = source.FCurrentPage;
Result.FTotalPages = source.FTotalPages;
Result.FCurrentPrintArea = source.FCurrentPrintArea;
if (source.FPaintClipRect != null)
{
Result.FPaintClipRect = new RectangleF[source.FPaintClipRect.Length];
for (int i = 0; i < source.FPaintClipRect.Length; i++)
{
Result.FPaintClipRect[i] = source.FPaintClipRect[i]; //struct
}
}
Result.FPagePrintRange = (TXlsCellRange)source.FPagePrintRange.Clone();
Result.FPageBounds = source.FPageBounds; //struct
if (source.FPrintRanges != null)
{
Result.FPrintRanges = new TXlsCellRange[source.FPrintRanges.Length];
for (int i = 0; i < source.FPrintRanges.Length; i++)
{
Result.FPrintRanges[i] = (TXlsCellRange)source.FPrintRanges[i].Clone();
}
}
return(Result);
}
private TImgExportInfo GetExportInfo(IFlxGraphics aCanvas)
{
TImgExportInfo Result = new TImgExportInfo();
if (AllVisibleSheets)
{
int FirstVisibleSheet = -1;
int SaveActiveSheet = Workbook.ActiveSheet;
try
{
Result.Sheets = new TOneImgExportInfo[Workbook.SheetCount];
for (int sheet = 1; sheet <= Workbook.SheetCount; sheet++)
{
Workbook.ActiveSheet = sheet;
if (Workbook.SheetVisible != TXlsSheetVisible.Visible)
{
continue;
}
if (FirstVisibleSheet < 0)
{
FirstVisibleSheet = sheet;
}
TOneImgExportInfo OneResult = new TOneImgExportInfo();
OneResult.FPrintRanges = FRenderer.InternalCalcPrintArea(FPrintRange);
TPaperDimensions pd = GetRealPageSize();
OneResult.FPageBounds = new RectangleF(0, 0, pd.Width, pd.Height);
FRenderer.InitializePrint(aCanvas, OneResult.PageBounds, OneResult.PageBounds, OneResult.PrintRanges, out OneResult.FPaintClipRect, out OneResult.FTotalPages, out OneResult.FPagePrintRange);
Result.Sheets[sheet - 1] = OneResult;
}
}
finally
{
Workbook.ActiveSheet = SaveActiveSheet;
}
Result.CurrentSheet = FirstVisibleSheet;
}
else
{
TOneImgExportInfo OneResult = new TOneImgExportInfo();
OneResult.FPrintRanges = FRenderer.InternalCalcPrintArea(FPrintRange);
TPaperDimensions pd = GetRealPageSize();
OneResult.FPageBounds = new RectangleF(0, 0, pd.Width, pd.Height);
FRenderer.InitializePrint(aCanvas, OneResult.PageBounds, OneResult.PageBounds, OneResult.PrintRanges, out OneResult.FPaintClipRect, out OneResult.FTotalPages, out OneResult.FPagePrintRange);
Result.Sheets = new TOneImgExportInfo[1];
Result.Sheets[0] = OneResult;
Result.CurrentSheet = Workbook.ActiveSheet;
}
Result.ResetCurrentPage();
LastInitSheet = 0;
return(Result);
}
/// <summary>
/// Returns a deep copy of a TImgExportInfo. This method will work even if the source object is null.
/// </summary>
/// <param name="source"></param>
/// <returns></returns>
public static TImgExportInfo Clone(TImgExportInfo source)
{
if (source == null)
{
return(null);
}
TImgExportInfo Result = (TImgExportInfo)source.MemberwiseClone();
if (source.FSheets != null)
{
Result.FSheets = new TOneImgExportInfo[source.FSheets.Length];
for (int i = 0; i < source.FSheets.Length; i++)
{
Result.FSheets[i] = TOneImgExportInfo.Clone(source.FSheets[i]);
}
}
return(Result);
}
/// <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);
}
