/// <summary>
/// Main method for running the sample.
/// </summary>
public static SampleOutputInfo[] Run(Stream input)
{
PdfFixedDocument document = new PdfFixedDocument(input);
PdfContentExtractor ce = new PdfContentExtractor(document.Pages[0]);
// Simple search.
PdfTextSearchResultCollection searchResults = ce.SearchText("at");
HighlightSearchResults(document.Pages[0], searchResults, PdfRgbColor.Red);
// Whole words search.
searchResults = ce.SearchText("at", PdfTextSearchOptions.WholeWordSearch);
HighlightSearchResults(document.Pages[0], searchResults, PdfRgbColor.Green);
// Regular expression search, find all words that start with uppercase.
searchResults = ce.SearchText("[A-Z][a-z]*", PdfTextSearchOptions.RegExSearch);
HighlightSearchResults(document.Pages[0], searchResults, PdfRgbColor.Blue);
SampleOutputInfo[] output = new SampleOutputInfo[] { new SampleOutputInfo(document, "xfinium.pdf.sample.searchtext.pdf") };
return output;
}
/// <summary>
/// Main method for running the sample.
/// </summary>
public static SampleOutputInfo[] Run(Stream input)
{
PdfBrush brush = new PdfBrush();
PdfPen redPen = new PdfPen(PdfRgbColor.Red, 1);
PdfStandardFont helvetica = new PdfStandardFont(PdfStandardFontFace.Helvetica, 10);
PdfFixedDocument document = new PdfFixedDocument(input);
PdfContentExtractor ce = new PdfContentExtractor(document.Pages[0]);
PdfVisualObjectCollection voc = ce.ExtractVisualObjects(false);
PdfPath contour = null;
for (int i = 0; i < voc.Count; i++)
{
switch (voc[i].Type)
{
case PdfVisualObjectType.Image:
PdfImageVisualObject ivo = voc[i] as PdfImageVisualObject;
contour = new PdfPath();
contour.StartSubpath(ivo.Image.ImageCorners[0].X - 5, ivo.Image.ImageCorners[0].Y + 5);
contour.AddLineTo(ivo.Image.ImageCorners[1].X + 5, ivo.Image.ImageCorners[1].Y + 5);
contour.AddLineTo(ivo.Image.ImageCorners[2].X + 5, ivo.Image.ImageCorners[2].Y - 5);
contour.AddLineTo(ivo.Image.ImageCorners[3].X - 5, ivo.Image.ImageCorners[3].Y - 5);
contour.CloseSubpath();
document.Pages[0].Graphics.DrawPath(redPen, contour);
document.Pages[0].Graphics.DrawString("Image", helvetica, brush,
ivo.Image.ImageCorners[0].X - 5, ivo.Image.ImageCorners[0].Y + 5);
break;
case PdfVisualObjectType.Text:
PdfTextVisualObject tvo = voc[i] as PdfTextVisualObject;
contour = new PdfPath();
contour.StartSubpath(tvo.TextFragment.FragmentCorners[0].X - 5, tvo.TextFragment.FragmentCorners[0].Y + 5);
contour.AddLineTo(tvo.TextFragment.FragmentCorners[1].X + 5, tvo.TextFragment.FragmentCorners[1].Y + 5);
contour.AddLineTo(tvo.TextFragment.FragmentCorners[2].X + 5, tvo.TextFragment.FragmentCorners[2].Y - 5);
contour.AddLineTo(tvo.TextFragment.FragmentCorners[3].X - 5, tvo.TextFragment.FragmentCorners[3].Y - 5);
contour.CloseSubpath();
document.Pages[0].Graphics.DrawPath(redPen, contour);
document.Pages[0].Graphics.DrawString("Text", helvetica, brush,
tvo.TextFragment.FragmentCorners[0].X - 5, tvo.TextFragment.FragmentCorners[0].Y + 5);
break;
case PdfVisualObjectType.Path:
PdfPathVisualObject pvo = voc[i] as PdfPathVisualObject;
// Examine all the path points and determine the minimum rectangle that bounds the path.
double minX = 999999, minY = 999999, maxX = -999999, maxY = -999999;
for (int j = 0; j < pvo.PathItems.Count; j++)
{
PdfPathItem pi = pvo.PathItems[j];
if (pi.Points != null)
{
for (int k = 0; k < pi.Points.Length; k++)
{
if (minX >= pi.Points[k].X)
{
minX = pi.Points[k].X;
}
if (minY >= pi.Points[k].Y)
{
minY = pi.Points[k].Y;
}
if (maxX <= pi.Points[k].X)
{
maxX = pi.Points[k].X;
}
if (maxY <= pi.Points[k].Y)
{
maxY = pi.Points[k].Y;
}
}
}
}
contour = new PdfPath();
contour.StartSubpath(minX - 5, minY - 5);
contour.AddLineTo(maxX + 5, minY - 5);
contour.AddLineTo(maxX + 5, maxY + 5);
contour.AddLineTo(minX - 5, maxY + 5);
contour.CloseSubpath();
document.Pages[0].Graphics.DrawPath(redPen, contour);
document.Pages[0].Graphics.DrawString("Path", helvetica, brush, minX - 5, maxY + 5);
// Skip the rest of path objects, they are the evaluation message
i = voc.Count;
break;
}
}
SampleOutputInfo[] output = new SampleOutputInfo[] { new SampleOutputInfo(document, "xfinium.pdf.sample.pageobjects.pdf") };
return output;
}