public static void Main()
{
string dataDir = Path.GetFullPath("../../../Data/");
Document doc = new Document(dataDir + "TestFile.docx");
// This sample introduces the RenderedDocument class and other related classes which provide an API wrapper for
// the LayoutEnumerator. This allows you to access the layout entities of a document using a DOM style API.
// Create a new RenderedDocument class from a Document object.
RenderedDocument layoutDoc = new RenderedDocument(doc);
// The following examples demonstrate how to use the wrapper API.
// This snippet returns the third line of the first page and prints the line of text to the console.
RenderedLine line = layoutDoc.Pages[0].Columns[0].Lines[2];
Console.WriteLine("Line: " + line.Text);
// With a rendered line the original paragraph in the document object model can be returned.
Paragraph para = line.Paragraph;
Console.WriteLine("Paragraph text: " + para.Range.Text);
// Retrieve all the text that appears of the first page in plain text format (including headers and footers).
string pageText = layoutDoc.Pages[0].Text;
Console.WriteLine();
// Loop through each page in the document and print how many lines appear on each page.
foreach (RenderedPage page in layoutDoc.Pages)
{
LayoutCollection <LayoutEntity> lines = page.GetChildEntities(LayoutEntityType.Line, true);
Console.WriteLine("Page {0} has {1} lines.", page.PageIndex, lines.Count);
}
// This method provides a reverse lookup of layout entities for any given node (with the exception of runs and nodes in the
// header and footer).
Console.WriteLine();
Console.WriteLine("The lines of the second paragraph:");
foreach (RenderedLine paragraphLine in layoutDoc.GetLayoutEntitiesOfNode(doc.FirstSection.Body.Paragraphs[1]))
{
Console.WriteLine(string.Format("\"{0}\"", paragraphLine.Text.Trim()));
Console.WriteLine(paragraphLine.Rectangle.ToString());
Console.WriteLine();
}
}
/// <summary>
/// Internal render method
/// </summary>
/// <param name="pageNumber"></param>
/// <param name="rotationAngle"></param>
/// <returns></returns>
private async Task BackgroundPageRenderAsync()
{
using (PdfPage page = RenderedDocument.GetPage(renderedPageIndex))
{
var renderOptions = new PdfPageRenderOptions();
renderOptions.BackgroundColor = Windows.UI.Colors.Transparent;
double actualWidth = PreviewArea.ActualWidth - PreviewBorder.Margin.Left - PreviewBorder.Margin.Right - 4;
ScaledRectangle displayedPageDimension;
if (RenderedRotationAngle % 180 == 0)
{
// Raw page orientation matches displayed page orientation
displayedPageDimension = new ScaledRectangle(page.Size.Height, page.Size.Width);
}
else
{
// Raw page orientation does not match the displayed page orientation
displayedPageDimension = new ScaledRectangle(page.Size.Width, page.Size.Height);
}
double stretchedHeight = displayedPageDimension.GetScaledHeight(actualWidth);
if (stretchedHeight > MaxHeight)
{
renderOptions.DestinationHeight = (uint)(MaxHeight);
renderOptions.DestinationWidth = (uint)displayedPageDimension.GetScaledWidth(MaxHeight);
}
else
{
renderOptions.DestinationHeight = (uint)stretchedHeight;
renderOptions.DestinationWidth = (uint)actualWidth;
}
// update decent border around the previewed page
PreviewBorder.Height = renderOptions.DestinationHeight;
PreviewBorder.Width = renderOptions.DestinationWidth;
var stream = new InMemoryRandomAccessStream();
await page.RenderToStreamAsync(stream, renderOptions);
BitmapImage src = new BitmapImage();
await src.SetSourceAsync(stream);
Preview.Source = src;
RotateTransform rotationTransform = new RotateTransform()
{
Angle = RenderedRotationAngle,
CenterX = (PreviewBorder.Width - 4) / 2,
CenterY = (PreviewBorder.Height - 4) / 2
};
ScaleTransform scaleTransform;
if (RenderedRotationAngle % 180 == 0)
{
scaleTransform = new ScaleTransform()
{
ScaleX = 1,
ScaleY = 1,
};
}
else
{
scaleTransform = new ScaleTransform()
{
CenterX = (PreviewBorder.Width - 4) / 2,
CenterY = (PreviewBorder.Height - 4) / 2,
ScaleX = displayedPageDimension.AspectRatio,
ScaleY = 1 / displayedPageDimension.AspectRatio,
};
}
TransformGroup renderTransform = new TransformGroup();
renderTransform.Children.Add(rotationTransform);
renderTransform.Children.Add(scaleTransform);
Preview.RenderTransform = renderTransform;
SetBorderStyle();
}
}
