/// <summary>
/// This is the main process of rendering a project to a pdf
/// </summary>
private RenderResultInfo RenderToDocument(object data, TemplateProject project, out PdfDocument document)
{
_loadingTimer.Reset();
_totalTimer.Restart();
_loadingTimer.Start();
_baseFontFamily = project.FontName;
var result = new RenderResultInfo {
Success = false
};
_loadingTimer.Stop();
var mapper = new DataMapper(project, data);
document = new PdfDocument();
document.Info.Author = "Generated from data by Form8sn";
document.Info.Title = project.Name;
document.Info.CreationDate = DateTime.UtcNow;
// Go through the project file and data, generate all the pages, and the
// template boxes with appropriately formatted data
var pageList = PrepareAllPages(project, mapper, result);
if (pageList is null)
{
result.Success = false;
return(result);
}
// Next, go through the prepared page and render them to PDF
var ok = RenderPagesToPdfDocument(project, document, pageList, result);
if (!ok)
{
result.Success = false;
return(result);
}
_totalTimer.Stop();
result.Success = true;
result.OverallTime = _totalTimer.Elapsed;
result.LoadingTime = _loadingTimer.Elapsed;
return(result);
}
/// <summary>
/// Follow all data paths and page repeaters in the project. Results in either a set of pages that
/// can be rendered to PDF, or null if the document can't be rendered
/// </summary>
/// <param name="project">Project file to generate a document for</param>
/// <param name="mapper">Data mapper holding the final data for a single document</param>
/// <param name="result">Rendering result, including any error messages</param>
/// <returns>List of pages to render, or null</returns>
public static List <DocumentPage>?PrepareAllPages(TemplateProject project, DataMapper mapper, RenderResultInfo result)
{
var runningTotals = new Dictionary <string, decimal>(); // path -> total
// First, we run through the definitions, gathering data
// This lets us count pages, and defers fitting content into boxes until
// we've decided to show it (e.g. if it's dependent on an empty box)
var pageList = new List <DocumentPage>();
for (var pageIndex = 0; pageIndex < project.Pages.Count; pageIndex++)
{
var pageDef = project.Pages[pageIndex] !;
if (pageDef.RepeatMode.Repeats)
{
var dataSets = mapper.GetRepeatData(pageDef.RepeatMode.DataPath);
for (var repeatIndex = 0; repeatIndex < dataSets.Count; repeatIndex++)
{
var repeatData = dataSets[repeatIndex];
mapper.SetRepeater(repeatData, pageDef.RepeatMode.DataPath);
var pageResult = PreparePage(pageDef, mapper, runningTotals, pageIndex);
mapper.ClearRepeater();
ClearPageTotals(runningTotals);
if (pageResult.IsFailure)
{
result.ErrorMessage = pageResult.FailureMessage;
return(null);
}
pageResult.ResultData.RepeatIndex = repeatIndex;
pageResult.ResultData.RepeatCount = dataSets.Count;
pageList.Add(pageResult.ResultData);
}
}
else
{
var pageResult = PreparePage(pageDef, mapper, runningTotals, pageIndex);
ClearPageTotals(runningTotals);
if (pageResult.IsFailure)
{
result.ErrorMessage = pageResult.FailureMessage;
return(null);
}
pageList.Add(pageResult.ResultData);
}
}
// remove boxes that have null/empty dependencies
PruneBoxes(pageList);
return(pageList);
}
/// <summary>
/// Render prepared pages into a PDF document
/// </summary>
/// <param name="project">Project file to generate a document for</param>
/// <param name="document">Open and writable PDF file to add pages to</param>
/// <param name="pageList">A set of pages from PrepareAllPages()</param>
/// <param name="result">Rendering result, including any error messages</param>
/// <returns>True for success, false for failure</returns>
public bool RenderPagesToPdfDocument(TemplateProject project, PdfDocument document, List <DocumentPage> pageList, RenderResultInfo result)
{
for (var pageIndex = 0; pageIndex < pageList.Count; pageIndex++)
{
_loadingTimer.Start();
var page = pageList[pageIndex] !;
var pageDef = page.Definition;
using var background = LoadBackground(project, page.SourcePageIndex, pageDef);
var font = GetFont(pageDef.PageFontSize ?? project.BaseFontSize ?? 16);
_loadingTimer.Stop();
var pageResult = OutputPage(document, page, font, background, pageIndex, pageList.Count);
if (pageResult.IsFailure)
{
result.ErrorMessage = pageResult.FailureMessage;
return(false);
}
}
return(true);
}
