private int GetAcumPageHeight(int pageNo)
{
if (pageNo < 1 || FirstPageExportInfo == null)
{
return(0);
}
int AcumHeight = 0;
int AcumPages = 0;
int SheetCount = FirstPageExportInfo.SheetCount;
for (int i = 1; i <= SheetCount; i++)
{
TOneImgExportInfo SheetInfo = FirstPageExportInfo.Sheet(i);
if (SheetInfo == null)
{
continue;
}
int SheetPages = SheetInfo.TotalPages;
int OneSheetHeight = ((int)Math.Round(SheetInfo.PageBounds.Height * Zoom) + RealYSep);
int SheetHeight = SheetPages * OneSheetHeight;
if (pageNo <= AcumPages + SheetPages)
{
return(AcumHeight + (pageNo - AcumPages) * OneSheetHeight);
}
AcumHeight += SheetHeight;
AcumPages += SheetPages;
}
return(AcumHeight);
}
private void GetVirtualPageCoords(int Page, out int Height, out int Width)
{
Height = 0; Width = 0;
if (Page < 1 || FirstPageExportInfo == null)
{
return;
}
int AcumPages = 0;
int SheetCount = FirstPageExportInfo.SheetCount;
for (int i = 1; i <= SheetCount; i++)
{
TOneImgExportInfo SheetInfo = FirstPageExportInfo.Sheet(i);
if (SheetInfo == null)
{
continue;
}
int SheetPages = SheetInfo.TotalPages;
if (Page <= AcumPages + SheetPages)
{
Height = ((int)Math.Round(SheetInfo.PageBounds.Height * Zoom));
Width = ((int)Math.Round(SheetInfo.PageBounds.Width * Zoom));
return;
}
AcumPages += SheetPages;
}
}
private int GetPageNo(int height)
{
if (height < 0 || FirstPageExportInfo == null)
{
return(1);
}
int AcumHeight = 0;
int AcumPages = 0;
int SheetCount = FirstPageExportInfo.SheetCount;
for (int i = 1; i <= SheetCount; i++)
{
TOneImgExportInfo SheetInfo = FirstPageExportInfo.Sheet(i);
if (SheetInfo == null)
{
continue;
}
int SheetPages = SheetInfo.TotalPages;
int OneSheetHeight = ((int)Math.Round(SheetInfo.PageBounds.Height * Zoom) + RealYSep);
int SheetHeight = SheetPages * OneSheetHeight;
if (AcumHeight + SheetHeight > height)
{
//Found the correct sheet.
int RealHeight = height - AcumHeight;
return(1 + AcumPages + RealHeight / OneSheetHeight);
}
AcumHeight += SheetHeight;
AcumPages += SheetPages;
}
return(FirstPageExportInfo.TotalPages);
}
