/// <summary>
/// Event occurs for each image before it is processed
/// </summary>
/// <param name="sender">sender</param>
/// <param name="e">image error event details</param>
private void reportDocument_ImageError(object sender, ImageErrorEventArgs e)
{
e.Handled = true; // just suppress exceptions
}
/// <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()
{
MemoryStream mem = new MemoryStream();
byte[] buf = Encoding.UTF8.GetBytes(_xamlData);
mem.Write(buf, 0, buf.Length);
mem.Position = 0;
FlowDocument res = XamlReader.Load(mem) as FlowDocument;
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);
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);
}
void reportDocument_ImageError(object sender, ImageErrorEventArgs e)
{
e.Handled = true;
}
/// <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;
}
}
/// <summary>
/// Creates a flow document of the report data
/// </summary>
/// <returns></returns>
/// <exception cref="ArgumentException">XAML data does not represent a FlowDocument</exception>
/// <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()
{
MemoryStream mem = new MemoryStream();
byte[] buf = Encoding.UTF8.GetBytes(_xamlData);
mem.Write(buf, 0, buf.Length);
mem.Position = 0;
FlowDocument res = XamlReader.Load(mem) as FlowDocument;
if (res == null) throw new ArgumentException("XAML data does not represent a FlowDocument");
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);
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); }
}
// 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 += WalkerVisualVisited;
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;
}
