/// <summary>
/// Constructor
/// </summary>
/// <param name="report">report document</param>
/// <param name="data">multiple report data</param>
/// <exception cref="ArgumentException">Need at least two ReportData objects</exception>
public MultipleReportPaginator(ReportDocument report, IEnumerable<ReportData> data)
{
using (var counter = new TimeCounter("\tMultipleReportPaginator Total: {0}", true, true))
{
if (data == null)
throw new ArgumentException("Need at least two ReportData objects");
// create a list of report paginators and compute page counts
_pageCount = 0;
foreach (ReportData rd in data)
{
if (rd == null)
continue;
ReportPaginator paginator = new ReportPaginator(report, rd);
_reportPaginators.Add(paginator);
paginator.PageShift = _pageCount;
paginator.TotalPageCount = _pageCount;
counter.ShowTick("\tMultipleReportPaginator Paginator: {0}");
DocumentPage dp = paginator.GetPage(0);
if ((dp != DocumentPage.Missing) && (dp.Size != Size.Empty))
_pageSize = paginator.PageSize;
_pageCount += paginator.PageCount;
counter.ShowTick("\tMultipleReportPaginator PageCount: {0}");
}
counter.ShowTick("\tMultipleReportPaginator Paginators: {0}");
foreach (ReportPaginator paginator in _reportPaginators)
paginator.TotalPageCount = _pageCount;
if (_reportPaginators.Count <= 0)
throw new ArgumentException("Need at least two ReportData objects");
counter.ShowTick("\tMultipleReportPaginator PageCount: {0}");
}
}
/// <summary>
/// Helper method to create page header or footer from flow document template
/// </summary>
/// <param name="data">enumerable report data</param>
/// <returns></returns>
/// <exception cref="ArgumentNullException">data</exception>
public XpsDocument CreateXpsDocument(IEnumerable<ReportData> data)
{
using (var counter = new TimeCounter("CreateXpsDocument Total: {0}", true, true))
{
if (data == null)
throw new ArgumentNullException("data");
int count = 0;
ReportData firstData = null;
foreach (ReportData rd in data) { if (firstData == null) firstData = rd; count++; }
if (count == 1)
return CreateXpsDocument(firstData); // we have only one ReportData object -> use the normal ReportPaginator instead
MemoryStream ms = new MemoryStream();
Package pkg = Package.Open(ms, FileMode.Create, FileAccess.ReadWrite);
string pack = "pack://report.xps";
PackageStore.RemovePackage(new Uri(pack));
PackageStore.AddPackage(new Uri(pack), pkg);
XpsDocument doc = new XpsDocument(pkg, CompressionOption.NotCompressed, pack);
XpsSerializationManager rsm = new XpsSerializationManager(new XpsPackagingPolicy(doc), false);
//DocumentPaginator paginator = ((IDocumentPaginatorSource)CreateFlowDocument()).DocumentPaginator;
counter.ShowTick("CreateXpsDocument Prepare: {0}");
MultipleReportPaginator rp = new MultipleReportPaginator(this, data);
counter.ShowTick("CreateXpsDocument Paginator: {0}");
rsm.SaveAsXaml(rp);
counter.ShowTick("CreateXpsDocument SaveAsXaml: {0}");
return doc;
}
}
/// <summary>
/// Creates a flow document of the report data
/// </summary>
/// <returns></returns>
/// <exception cref="ArgumentException">Flow document must have a specified page height</exception>
/// <exception cref="ArgumentException">Flow document must have a specified page width</exception>
/// <exception cref="ArgumentException">"Flow document must have only one ReportProperties section, but it has {0}"</exception>
public FlowDocument CreateFlowDocument(out Hint hints)
{
using (var counter = new TimeCounter("\t\t\tReportDocument Total {0}"))
{
FlowDocument res = GetFlowDocument();
counter.ShowTick("\t\t\t\tReportDocument Load XAML: {0}");
if (res.PageHeight == double.NaN)
throw new ArgumentException("Flow document must have a specified page height");
if (res.PageWidth == double.NaN)
throw new ArgumentException("Flow document must have a specified page width");
// remember original values
_pageHeight = res.PageHeight;
_pageWidth = res.PageWidth;
// search report properties
DocumentWalker walker = new DocumentWalker();
List<SectionReportHeader> headers = walker.Walk<SectionReportHeader>(res);
List<SectionReportFooter> footers = walker.Walk<SectionReportFooter>(res);
var hintList = walker.Walk<ReportHint>(res);
hints = Hint.None;
foreach (var hint in hintList)
{
hints |= hint.Hint;
// remove properties section from FlowDocument
DependencyObject parent = hint.Parent;
if (parent is FlowDocument) { ((FlowDocument)parent).Blocks.Remove(hint); parent = null; }
if (parent is Section) { ((Section)parent).Blocks.Remove(hint); parent = null; }
}
List<ReportProperties> properties = walker.Walk<ReportProperties>(res);
if (properties.Count > 0)
{
if (properties.Count > 1)
throw new ArgumentException(String.Format("Flow document must have only one ReportProperties section, but it has {0}", properties.Count));
ReportProperties prop = properties[0];
if (prop.ReportName != null)
ReportName = prop.ReportName;
if (prop.ReportTitle != null)
ReportTitle = prop.ReportTitle;
if (headers.Count > 0)
PageHeaderHeight = headers[0].PageHeaderHeight;
if (footers.Count > 0)
PageFooterHeight = footers[0].PageFooterHeight;
// remove properties section from FlowDocument
DependencyObject parent = prop.Parent;
if (parent is FlowDocument) { ((FlowDocument)parent).Blocks.Remove(prop); parent = null; }
if (parent is Section) { ((Section)parent).Blocks.Remove(prop); parent = null; }
}
// make height smaller to have enough space for page header and page footer
res.PageHeight = _pageHeight - _pageHeight * (PageHeaderHeight + PageFooterHeight) / 100d;
// search image objects
List<Image> images = new List<Image>();
walker.Tag = images;
walker.VisualVisited += new DocumentVisitedEventHandler(walker_VisualVisited);
walker.Walk(res);
// load all images
foreach (Image image in images)
{
if (ImageProcessing != null)
ImageProcessing(this, new ImageEventArgs(this, image));
try
{
if (image.Tag is string)
image.Source = new BitmapImage(new Uri("file:///" + Path.Combine(_xamlImagePath, image.Tag.ToString())));
}
catch (Exception ex)
{
// fire event on exception and check for Handled = true after each invoke
if (ImageError != null)
{
bool handled = false;
lock (ImageError)
{
ImageErrorEventArgs eventArgs = new ImageErrorEventArgs(ex, this, image);
foreach (var ed in ImageError.GetInvocationList())
{
ed.DynamicInvoke(this, eventArgs);
if (eventArgs.Handled) { handled = true; break; }
}
}
if (!handled)
throw;
}
else
throw;
}
if (ImageProcessed != null)
ImageProcessed(this, new ImageEventArgs(this, image));
// TODO: find a better way to specify file names
}
return res;
}
}
