在页面上定义我正在打印的flowdocument将“开始”和“结束” [英] Defining where on the page the flowdocument I am printing will 'start' and 'end'
问题描述
我的问题是，我正在打印一些报告，包含一个标题（包含关于报告人的信息），一个页脚（带页码）和中间内容（这是一个FlowDocument）。由于flow文档可能相当长，所以它们很可能跨越多个页面。
我的方法是制作一个自定义的从DocumentPaginator派生的FlowDocumentPaginator。
>在那里我定义了我的页眉和页脚。
然而，当我打印我的页面时，flowdocument和我的页眉所以我的问题很简单 - 我该如何定义页面上flowdocument部分的位置和位置？
这里是我自定义Paginator的代码：
public class HeaderedFlowDocumentPaginator：DocumentPaginator
{
private DocumentPaginator flowDocumentpaginator;
public HeaderedFlowDocumentPaginator（FlowDocument document）
{
flowDocumentpaginator =（（IDocumentPaginatorSource）document）.DocumentPaginator;
}
public override bool IsPageCountValid
{
get {return flowDocumentpaginator.IsPageCountValid; }
}
public override int PageCount
{
get {return flowDocumentpaginator.PageCount; }
}
public override Size PageSize
{
get {return flowDocumentpaginator.PageSize; }
set {flowDocumentpaginator.PageSize = value; }
}
public override IDocumentPaginatorSource源
{
get {return flowDocumentpaginator.Source; }
}
public override DocumentPage GetPage（int pageNumber）
{
DocumentPage page = flowDocumentpaginator.GetPage（pageNumber）;
ContainerVisual newVisual = new ContainerVisual（）;
newVisual.Children.Add（page.Visual）;
DrawingVisual header = new DrawingVisual（）;
using（DrawingContext dc = header.RenderOpen（））
{
// Header data
}
newVisual.Children.Add（header）;
DrawingVisual footer = new DrawingVisual（）;
using（DrawingContext dc = footer.RenderOpen（））
{
字体typeface = new Typeface（Trebuchet MS）;
FormattedText text = new FormattedText（Page+（pageNumber + 1）.ToString（），CultureInfo.CurrentCulture，FlowDirection.LeftToRight，typeface，14，Brushes.Black）;
dc.DrawText（text，new Point（page.Size.Width - 100，page.Size.Height-30））;
}
newVisual.Children.Add（footer）;
DocumentPage newPage = new DocumentPage（newVisual）;
返回newPage;
这里是printdialogue调用：
private void btnPrint_Click（object sender，RoutedEventArgs e）
{
try
{
PrintDialog printDialog = new PrintDialog（）;
if（printDialog.ShowDialog（）== true）
{
FlowDocument fd = new FlowDocument（）;
MemoryStream stream = new MemoryStream（ASCIIEncoding.Default.GetBytes（< My string of text - RTF formatted>））;
TextRange tr = new TextRange（fd.ContentStart，fd.ContentEnd）;
tr.Load（stream，DataFormats.Rtf）;
stream.Close（）;
fd.ColumnWidth = printDialog.PrintableAreaWidth;
HeaderedFlowDocumentPaginator paginator = new HeaderedFlowDocumentPaginator（fd）;
printDialog.PrintDocument（paginator，myReport）;
catch（Exception ex）
{
// Handle
}
}
相当简单的解决方案 - 我只是不知道要找什么
例子：
Flowdocument fd = new FlowDocument（）;
fd.PagePadding =新厚度（0.25,160,0.25,45）;
I am almost done with implementing a printing functionality, but I am having trouble getting the last hurdle done with.
My problem is, that I am printing some reports, consisting of a header (with information about the person the report is about), a footer (with a page number) and the content in the middle, which is a FlowDocument. Since the flowdocuments can be fairly long, It is very possible that they will span multiple pages.
My approach is to make a custom FlowDocumentPaginator which derives from DocumentPaginator.
In there i define my header and my footer.
However, when I print my page, the flowdocument and my header and footer are on top of eachother.
So my question is plain and simple - how do I define from where and to where the flowdocument part on the pages will be placed?
here is the code from my custommade Paginator:
public class HeaderedFlowDocumentPaginator : DocumentPaginator
{
private DocumentPaginator flowDocumentpaginator;
public HeaderedFlowDocumentPaginator(FlowDocument document)
{
flowDocumentpaginator = ((IDocumentPaginatorSource) document).DocumentPaginator;
}
public override bool IsPageCountValid
{
get { return flowDocumentpaginator.IsPageCountValid; }
}
public override int PageCount
{
get { return flowDocumentpaginator.PageCount; }
}
public override Size PageSize
{
get { return flowDocumentpaginator.PageSize; }
set { flowDocumentpaginator.PageSize = value; }
}
public override IDocumentPaginatorSource Source
{
get { return flowDocumentpaginator.Source; }
}
public override DocumentPage GetPage(int pageNumber)
{
DocumentPage page = flowDocumentpaginator.GetPage(pageNumber);
ContainerVisual newVisual = new ContainerVisual();
newVisual.Children.Add(page.Visual);
DrawingVisual header = new DrawingVisual();
using (DrawingContext dc = header.RenderOpen())
{
//Header data
}
newVisual.Children.Add(header);
DrawingVisual footer = new DrawingVisual();
using (DrawingContext dc = footer.RenderOpen())
{
Typeface typeface = new Typeface("Trebuchet MS");
FormattedText text = new FormattedText("Page " + (pageNumber + 1).ToString(), CultureInfo.CurrentCulture, FlowDirection.LeftToRight, typeface, 14, Brushes.Black);
dc.DrawText(text, new Point(page.Size.Width - 100, page.Size.Height-30));
}
newVisual.Children.Add(footer);
DocumentPage newPage = new DocumentPage(newVisual);
return newPage;
}
}
And here is the printdialogue call:
private void btnPrint_Click(object sender, RoutedEventArgs e)
{
try
{
PrintDialog printDialog = new PrintDialog();
if (printDialog.ShowDialog() == true)
{
FlowDocument fd = new FlowDocument();
MemoryStream stream = new MemoryStream(ASCIIEncoding.Default.GetBytes(<My string of text - RTF formatted>));
TextRange tr = new TextRange(fd.ContentStart, fd.ContentEnd);
tr.Load(stream, DataFormats.Rtf);
stream.Close();
fd.ColumnWidth = printDialog.PrintableAreaWidth;
HeaderedFlowDocumentPaginator paginator = new HeaderedFlowDocumentPaginator(fd);
printDialog.PrintDocument(paginator, "myReport");
}
}
catch (Exception ex)
{
//Handle
}
}
解决方案 I found it myself - there is a function called pagepadding, where I can set the distance from the four sides of the paper :)
Fairly easy solution - I just didn't know what to look for
Example:
Flowdocument fd = new FlowDocument();
fd.PagePadding = new Thickness(0.25,160,0.25,45);
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