private void Button_Click(object sender, RoutedEventArgs e)
{
// get stream to save to
var dlg = new SaveFileDialog();
dlg.DefaultExt = ".pdf";
var dr = dlg.ShowDialog();
if (!dr.HasValue || !dr.Value)
{
return;
}
// get sender button
var btn = sender as Button;
// create document
var pdf = new C1PdfDocument(PaperKind.Letter);
pdf.Clear();
// set document info
var di = pdf.DocumentInfo;
di.Author = "ComponentOne";
di.Subject = "C1.WPF.Pdf demo.";
di.Title = "Experimental VisualTree Exporter for PDF";
// walk visual tree
CreateDocumentVisualTree(pdf, content);
// render footers
// this reopens each page and adds content to them (now we know the page count).
var font = new Font("Arial", 8, PdfFontStyle.Bold);
var fmt = new StringFormat();
fmt.Alignment = HorizontalAlignment.Right;
fmt.LineAlignment = VerticalAlignment.Bottom;
for (int page = 0; page < pdf.Pages.Count; page++)
{
pdf.CurrentPage = page;
var text = string.Format("C1.WPF.Pdf: {0}, page {1} of {2}",
di.Title,
page + 1,
pdf.Pages.Count);
pdf.DrawString(
text,
font,
Colors.DarkGray,
PdfUtils.Inflate(pdf.PageRectangle, -72, -36),
fmt);
}
// save document
using (var stream = dlg.OpenFile())
{
pdf.Save(stream);
}
MessageBox.Show("Pdf Document saved to " + dlg.SafeFileName);
}
static Rect RenderTableRow(C1PdfDocument pdf, Font font, Font hdrFont, Rect rcPage, Rect rc, string[] fields, DataRow dr)
{
// calculate cell width (same for all columns)
Rect rcCell = rc;
rcCell.Width = rc.Width / fields.Length;
rcCell.Height = 0;
// calculate cell height (max of all columns)
rcCell = PdfUtils.Inflate(rcCell, -4, 0);
foreach (string field in fields)
{
string text = dr[field].ToString();
var height = pdf.MeasureString(text, font, rcCell.Width).Height;
rcCell.Height = Math.Max(rcCell.Height, height);
}
rcCell = PdfUtils.Inflate(rcCell, 4, 0); // add 4 point margin
rcCell.Height += 2;
// break page if we have to
if (rcCell.Bottom > rcPage.Bottom)
{
pdf.NewPage();
rc = RenderTableHeader(pdf, hdrFont, rcPage, fields);
rcCell.Y = rc.Y;
}
// center vertically just to show how
StringFormat fmt = new StringFormat();
fmt.LineAlignment = VerticalAlignment.Center;
// render data cells
foreach (string field in fields)
{
// get content
string text = dr[field].ToString();
// set horizontal alignment
double d;
fmt.Alignment = (double.TryParse(text, NumberStyles.Any, CultureInfo.CurrentCulture, out d))
? HorizontalAlignment.Right
: HorizontalAlignment.Left;
// render cell
pdf.DrawRectangle(Colors.LightGray, rcCell);
rcCell = PdfUtils.Inflate(rcCell, -4, 0);
pdf.DrawString(text, font, Colors.Black, rcCell, fmt);
rcCell = PdfUtils.Inflate(rcCell, 4, 0);
rcCell = PdfUtils.Offset(rcCell, rcCell.Width, 0);
}
// update rectangle and return it
return(PdfUtils.Offset(rc, 0, rcCell.Height));
}
//---------------------------------------------------------------------------------
#region ** paper sizes
static void CreateDocumentPaperSizes(C1PdfDocument pdf)
{
// add title
Font titleFont = new Font("Tahoma", 24, PdfFontStyle.Bold);
Rect rc = PdfUtils.PageRectangle(pdf);
PdfUtils.RenderParagraph(pdf, pdf.DocumentInfo.Title, titleFont, rc, rc, false);
// create constant font and StringFormat objects
Font font = new Font("Tahoma", 18);
StringFormat sf = new StringFormat();
sf.Alignment = HorizontalAlignment.Center;
sf.LineAlignment = VerticalAlignment.Center;
// create one page with each paper size
bool firstPage = true;
foreach (var fi in typeof(PaperKind).GetFields(BindingFlags.Static | BindingFlags.Public))
{
// Silverlight/Phone doesn't have Enum.GetValues
PaperKind pk = (PaperKind)fi.GetValue(null);
// skip custom size
if (pk == PaperKind.Custom)
{
continue;
}
// add new page for every page after the first one
if (!firstPage)
{
pdf.NewPage();
}
firstPage = false;
// set paper kind and orientation
pdf.PaperKind = pk;
pdf.Landscape = !pdf.Landscape;
// draw some content on the page
rc = PdfUtils.PageRectangle(pdf);
rc = PdfUtils.Inflate(rc, -6, -6);
string text = string.Format("PaperKind: [{0}];\r\nLandscape: [{1}];\r\nFont: [Tahoma 18pt]",
pdf.PaperKind, pdf.Landscape);
pdf.DrawString(text, font, Colors.Black, rc, sf);
pdf.DrawRectangle(Colors.Black, rc);
}
}
//---------------------------------------------------------------------------------
#region ** text
static void CreateDocumentText(C1PdfDocument pdf)
{
// use landscape for more impact
pdf.Landscape = true;
// measure and show some text
var text = "Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.";
var font = new Font("Times New Roman", 9, PdfFontStyle.Italic);
// create StringFormat used to set text alignment and line spacing
var fmt = new StringFormat();
fmt.LineSpacing = -1.5; // 1.5 char height
fmt.Alignment = HorizontalAlignment.Center;
// measure it
var sz = pdf.MeasureString(text, font, 72 * 3, fmt);
var rc = new Rect(pdf.PageRectangle.Width / 2, 72, sz.Width, sz.Height);
rc = PdfUtils.Offset(rc, 72, 0);
// draw a rounded frame
rc = PdfUtils.Inflate(rc, 10, 10);
pdf.FillRectangle(Colors.Black, rc, new Size(30, 30));
pdf.DrawRectangle(new Pen(Colors.Red, 4), rc, new Size(30, 30));
rc = PdfUtils.Inflate(rc, -10, -10);
// draw the text
pdf.DrawString(text, font, Colors.White, rc, fmt);
// point in center for rotate the text
rc = pdf.PageRectangle;
var pt = new Point(rc.Location.X + rc.Width / 2, rc.Location.Y + rc.Height / 2);
// rotate the string in small increments
var step = 6;
text = "PDF works in WPF!";
for (int i = 0; i <= 360; i += step)
{
pdf.RotateAngle = i;
font = new Font("Courier New", 8 + i / 30.0, PdfFontStyle.Bold);
byte b = (byte)(255 * (1 - i / 360.0));
pdf.DrawString(text, font, Color.FromArgb(0xff, b, b, b), pt);
}
}
void CreateDocumentVisualTree(C1PdfDocument pdf, FrameworkElement targetElement)
{
// set up to render
var font = new Font("Courier", 14);
var img = new WriteableBitmap(CreateBitmap(targetElement));
// go render
bool firstPage = true;
foreach (Stretch stretch in new Stretch[] { Stretch.Fill, Stretch.None, Stretch.Uniform, Stretch.UniformToFill })
{
// add page break
if (!firstPage)
{
pdf.NewPage();
}
firstPage = false;
// set up to render
var alignment = ContentAlignment.TopLeft;
var rc = PdfUtils.Inflate(pdf.PageRectangle, -72, -72);
rc.Height /= 2;
// render element as image
pdf.DrawString("Element as Image, Stretch: " + stretch.ToString(), font, Colors.Black, rc);
rc = PdfUtils.Inflate(rc, -20, -20);
pdf.DrawImage(img, rc, alignment, stretch);
pdf.DrawRectangle(Colors.Green, rc);
rc = PdfUtils.Inflate(rc, +20, +20);
pdf.DrawRectangle(Colors.Green, rc);
// move to bottom of the page
rc = PdfUtils.Offset(rc, 0, rc.Height + 20);
// render element
pdf.DrawString("Element as VisualTree, Stretch: " + stretch.ToString(), font, Colors.Black, rc);
rc = PdfUtils.Inflate(rc, -20, -20);
pdf.DrawElement(targetElement, rc, alignment, stretch);
pdf.DrawRectangle(Colors.Green, rc);
rc = PdfUtils.Inflate(rc, +20, +20);
pdf.DrawRectangle(Colors.Green, rc);
}
}
//---------------------------------------------------------------------------------
#region ** text flow
static void CreateDocumentTextFlow(C1PdfDocument pdf)
{
// load long string from resource file
string text = "Resource not found...";
using (var sr = new StreamReader(DataAccess.GetStream("flow.txt")))
{
text = sr.ReadToEnd();
}
text = text.Replace("\t", " ");
text = string.Format("{0}\r\n\r\n---oOoOoOo---\r\n\r\n{0}", text);
// create pdf document
pdf.DocumentInfo.Title = "Text Flow";
// add title
Font titleFont = new Font("Tahoma", 24, PdfFontStyle.Bold);
Font bodyFont = new Font("Tahoma", 9);
Rect rcPage = PdfUtils.PageRectangle(pdf);
Rect rc = PdfUtils.RenderParagraph(pdf, pdf.DocumentInfo.Title, titleFont, rcPage, rcPage, false);
rc.Y += titleFont.Size + 6;
rc.Height = rcPage.Height - rc.Y;
// create two columns for the text
Rect rcLeft = rc;
rcLeft.Width = rcPage.Width / 2 - 12;
rcLeft.Height = 300;
rcLeft.Y = (rcPage.Y + rcPage.Height - rcLeft.Height) / 2;
Rect rcRight = rcLeft;
rcRight.X = rcPage.Right - rcRight.Width;
// start with left column
rc = rcLeft;
// render string spanning columns and pages
for (; ;)
{
// render as much as will fit into the rectangle
rc = PdfUtils.Inflate(rc, -3, -3);
int nextChar = pdf.DrawString(text, bodyFont, Colors.Black, rc);
rc = PdfUtils.Inflate(rc, +3, +3);
pdf.DrawRectangle(Colors.LightGray, rc);
// break when done
if (nextChar >= text.Length)
{
break;
}
// get rid of the part that was rendered
text = text.Substring(nextChar);
// switch to right-side rectangle
if (rc.Left == rcLeft.Left)
{
rc = rcRight;
}
else // switch to left-side rectangle on the next page
{
pdf.NewPage();
rc = rcLeft;
}
}
}
public static void HandleButtonClick(object sender, RoutedEventArgs e)
{
// get sender button
var btn = sender as Button;
// create document
var pdf = new C1PdfDocument(PaperKind.Letter);
pdf.Clear();
// set document info
var di = pdf.DocumentInfo;
di.Author = "ComponentOne";
di.Subject = "C1.WPF.Pdf demo.";
di.Title = (string)btn.Content;
//// add some security
//if (false)
//{
// var si = pdf.Security;
// si.AllowPrint = false;
// si.AllowEditAnnotations = false;
// si.AllowEditContent = false;
// si.AllowCopyContent = false;
// //si.UserPassword = "******";
// //si.OwnerPassword = "******";
//}
//// set viewer preferences
//if (false)
//{
// var vp = pdf.ViewerPreferences;
// vp.CenterWindow = true;
// vp.FitWindow = true;
// vp.PageLayout = PageLayout.TwoColumnLeft;
// vp.PageMode = PageMode.FullScreen;
//}
// create document
switch (di.Title)
{
case "Quotes":
CreateDocumentQuotes(pdf);
break;
case "Tables":
CreateDocumentTables(pdf);
break;
case "Images":
CreateDocumentImages(pdf);
break;
case "Paper Sizes":
CreateDocumentPaperSizes(pdf);
break;
case "Table of Contents":
CreateDocumentTOC(pdf);
break;
case "Text Flow":
CreateDocumentTextFlow(pdf);
break;
case "Text":
CreateDocumentText(pdf);
break;
case "Graphics":
CreateDocumentGraphics(pdf);
break;
}
// render footers
// this reopens each page and adds content to them (now we know the page count).
var font = new Font("Arial", 8, PdfFontStyle.Bold);
var fmt = new StringFormat();
fmt.Alignment = HorizontalAlignment.Right;
fmt.LineAlignment = VerticalAlignment.Bottom;
for (int page = 0; page < pdf.Pages.Count; page++)
{
pdf.CurrentPage = page;
var text = string.Format("C1.WPF.Pdf: {0}, page {1} of {2}",
di.Title,
page + 1,
pdf.Pages.Count);
pdf.DrawString(
text,
font,
Colors.DarkGray,
PdfUtils.Inflate(pdf.PageRectangle, -72, -36),
fmt);
}
var w = new Preview();
w.PdfDocument = pdf;
w.Show();
}