static Document _createDocument <T>(IEnumerable <T> items, ArrayToPdfScheme <T> scheme)
{
var document = new Document();
document.UseCmykColor = true;
document.Info.Title = scheme.Title;
document.Info.Subject = scheme.Subject;
document.Info.Author = scheme.Author;
document.DefaultPageSetup.PageFormat = (PageFormat)scheme.PageFormat;
document.DefaultPageSetup.Orientation = (Orientation)scheme.PageOrientation;
document.DefaultPageSetup.HeaderDistance = Unit.FromMillimeter(scheme.PageMarginTop);
document.DefaultPageSetup.FooterDistance = Unit.FromMillimeter(scheme.PageMarginBottom);
document.DefaultPageSetup.TopMargin = Unit.FromMillimeter(scheme.PageMarginTop + (string.IsNullOrWhiteSpace(scheme.Header) ? 0 : scheme.HeaderHeight));
document.DefaultPageSetup.RightMargin = Unit.FromMillimeter(scheme.PageMarginRight + _tableLeftBias);
document.DefaultPageSetup.BottomMargin = Unit.FromMillimeter(scheme.PageMarginBottom + (string.IsNullOrWhiteSpace(scheme.Footer) ? 0 : scheme.FooterHeight));
document.DefaultPageSetup.LeftMargin = Unit.FromMillimeter(scheme.PageMarginLeft - _tableLeftBias);
Unit width, height;
PageSetup.GetPageSize(document.DefaultPageSetup.PageFormat, out width, out height);
document.DefaultPageSetup.PageWidth = width;
document.DefaultPageSetup.PageHeight = height;
var innerWidth = Unit.FromPoint(document.DefaultPageSetup.GetWidth() - document.DefaultPageSetup.LeftMargin - document.DefaultPageSetup.RightMargin);
_addStyles(document, innerWidth);
_addSection(document);
_addHeader(document, innerWidth, scheme);
_addFooter(document, innerWidth, scheme);
_addTable(document, innerWidth, items, scheme);
return(document);
}
public static ArrayToPdfScheme <T> SetInfo <T>(this ArrayToPdfScheme <T> scheme, string title, string subject, string author)
{
scheme.Title = title;
scheme.Subject = subject;
scheme.Author = author;
return(scheme);
}
public static byte[] CreatePdf <T>(IEnumerable <T> items, Action <ArrayToPdfScheme <T> > schemeBuilder = null)
{
var scheme = new ArrayToPdfScheme <T>();
schemeBuilder?.Invoke(scheme);
return(_createPdf(items, scheme));
}
/// <summary>Margin in Millimeters</summary>
public static ArrayToPdfScheme <T> SetPageMargin <T>(this ArrayToPdfScheme <T> scheme, uint top, uint right, uint bottom, uint left)
{
scheme.PageMarginTop = top;
scheme.PageMarginRight = right;
scheme.PageMarginBottom = bottom;
scheme.PageMarginLeft = left;
return(scheme);
}
static byte[] _createPdf <T>(IEnumerable <T> items, ArrayToPdfScheme <T> scheme)
{
using (var ms = new MemoryStream())
{
var renderer = new PdfDocumentRenderer(true);
renderer.Document = _createDocument(items, scheme);
renderer.RenderDocument();
renderer.PdfDocument.Save(ms);
return(ms.ToArray());
}
}
static void _addHeader <T>(Document document, Unit innerWidth, ArrayToPdfScheme <T> scheme)
{
if (string.IsNullOrWhiteSpace(scheme.Header))
{
return;
}
var header = document.LastSection.Headers.Primary;
var paragraph = header.AddParagraph();
paragraph.Format.LeftIndent = Unit.FromMillimeter(_tableLeftBias);
paragraph.Format.Alignment = (ParagraphAlignment)scheme.HeaderAlignment;
paragraph.Format.Font.Size = scheme.HeaderFontSize;
paragraph.Format.Font.Bold = scheme.HeaderFontBold;
_addTmpText(paragraph, scheme.Header, scheme);
}
static void _addTmpText <T>(Paragraph paragraph, string template, ArrayToPdfScheme <T> scheme)
{
foreach (var part in template.Split(new[] { '{', '}' }, StringSplitOptions.RemoveEmptyEntries))
{
switch (part)
{
case "TITLE":
paragraph.AddText(scheme.Title ?? string.Empty);
break;
case "PAGE":
paragraph.AddPageField();
break;
case "PAGES":
paragraph.AddNumPagesField();
break;
default:
paragraph.AddText(part);
break;
}
}
}
static void _addTable <T>(Document document, Unit innerWidth, IEnumerable <T> items, ArrayToPdfScheme <T> scheme)
{
if (scheme.Columns.Count == 0)
{
return;
}
var table = new Table();
table.Format.Font.Size = Unit.FromPoint(scheme.TableFontSize);
table.Borders.Width = 0.5;
var colWidth = Unit.FromPoint(innerWidth / scheme.Columns.Count);
var settedWidth = scheme.Columns.Sum(x => x.Width ?? 0);
var autoWidthCount = scheme.Columns.Count(x => !x.Width.HasValue);
var autoWidth = (innerWidth.Millimeter - settedWidth) / (autoWidthCount > 0 ? autoWidthCount : 1);
// create columns
scheme.Columns.ForEach(x => table.AddColumn(Unit.FromMillimeter(x.Width ?? autoWidth)).Format.Alignment = (ParagraphAlignment)(x.Alignment ?? scheme.TableAlignment));
// add header
var row = table.AddRow();
row.TopPadding = 2;
row.BottomPadding = 2;
row.HeadingFormat = true;
row.Format.Font.Bold = true;
row.Shading.Color = Colors.LightGray;
row.VerticalAlignment = VerticalAlignment.Center;
scheme.Columns.ForEach(x => row.Cells[x.Index].AddParagraph(x.Name ?? string.Empty));
// add rows
//var itemsCount = 0;
foreach (var item in items)
{
//itemsCount++;
row = table.AddRow();
row.TopPadding = 1;
row.BottomPadding = 1;
row.VerticalAlignment = VerticalAlignment.Center;
foreach (var col in scheme.Columns)
{
var value = col.ValueFn(item);
var cell = row.Cells[col.Index];
cell.AddParagraph(value?.ToString() ?? string.Empty);
}
}
//table.SetEdge(0, 0, scheme.Columns.Count, itemsCount+1, Edge.Box, BorderStyle.Single, 1, Colors.Black);
document.LastSection.Add(table);
}
