public static List <ColorPt> ExistingColors(this Document document)
{
List <ColorPt> existingColorPts = new List <ColorPt>();
for (int i = 1; i <= document.GetPageCount(); i++)
{
pdftron.PDF.Page page = document.GetPage(i);
if (page.IsValid())
{
for (int j = 0; j < page.GetNumAnnots(); j++)
{
Annot annot = page.GetAnnot(j);
if (annot.GetSDFObj() != null && (annot.GetType() == Annot.Type.e_Highlight || annot.GetType() == Annot.Type.e_Unknown))
{
ColorPt existingColorPt = annot.GetColorAsRGB();
if (existingColorPts.Where(e =>
e.Get(0) == existingColorPt.Get(0) &&
e.Get(1) == existingColorPt.Get(1) &&
e.Get(2) == existingColorPt.Get(2) &&
e.Get(3) == existingColorPt.Get(3)
).Count() == 0)
{
existingColorPts.Add(existingColorPt);
}
}
}
}
}
return(existingColorPts);
}
static Obj CreateHighlightAppearance(List <Rect> boxes, ColorPt highlightColor, double highlightOpacity, Document document)
{
var elementBuilder = new ElementBuilder();
elementBuilder.PathBegin();
boxes.ForEach(box => elementBuilder.Rect(box.x1 - 2, box.y1, box.x2 - box.x1, box.y2 - box.y1));
Element element = elementBuilder.PathEnd();
element.SetPathFill(true);
element.SetPathStroke(false);
GState elementGraphicState = element.GetGState();
elementGraphicState.SetFillColorSpace(ColorSpace.CreateDeviceRGB());
elementGraphicState.SetFillColor(highlightColor);
elementGraphicState.SetFillOpacity(highlightOpacity);
elementGraphicState.SetBlendMode(GState.BlendMode.e_bl_multiply);
var elementWriter = new ElementWriter();
elementWriter.Begin(document);
elementWriter.WriteElement(element);
Obj highlightAppearance = elementWriter.End();
elementBuilder.Dispose();
elementWriter.Dispose();
Rect boundingBox = RectangleUnion(boxes);
highlightAppearance.PutRect("BBox", boundingBox.x1, boundingBox.y1, boundingBox.x2, boundingBox.y2);
highlightAppearance.PutName("Subtype", "Form");
return(highlightAppearance);
}
private void ColorCheckboxClick(object sender, System.EventArgs e, CheckBox checkBox, ColorPt selectedColorPt, List <ColorPt> selectedColorPts, out List <ColorPt> selectedColorPtsAfter)
{
selectedColorPtsAfter = selectedColorPts;
if (checkBox.Checked)
{
selectedColorPtsAfter.Add(selectedColorPt);
}
else
{
if (selectedColorPtsAfter.Where(s => s == selectedColorPt).ToList().Count > 0)
{
selectedColorPtsAfter.Remove(selectedColorPt);
}
}
}
static Annot CreateSingleHighlightAnnot(Document document, List <Rect> boxes, ColorPt colorPt, double highlightOpacity)
{
Annot annotation = Annot.Create(document, Annot.Type.e_Highlight, RectangleUnion(boxes));
annotation.SetColor(colorPt);
annotation.SetBorderStyle(new Annot.BorderStyle
(Annot.BorderStyle.Style.e_solid, 1));
Obj quads = annotation.GetSDFObj().PutArray("QuadPoints");
List <Rect> lineRectangles = boxes.GroupBy(box => box.y1).Select(line => RectangleUnion(line.ToList())).ToList();
lineRectangles.ForEach(lineRect => PushBackBox(quads, lineRect));
annotation.SetAppearance(CreateHighlightAppearance(lineRectangles, colorPt, highlightOpacity, document));
return(annotation);
}
static void CreateHighlightAnnots(Annotation annotation, System.Drawing.Color highlightColor, Document document, List <Rect> coveredRectsBefore, out List <Rect> coveredRectsAfter)
{
List <Quad> quads = annotation.Quads.Where(q => q.IsContainer == false).ToList();
List <int> pages = quads.Select(q => q.PageIndex).ToList().Distinct().ToList();
pages.Sort();
KnowledgeItem quotation = (KnowledgeItem)annotation.EntityLinks.Where(e => e.Indication == EntityLink.PdfKnowledgeItemIndication).FirstOrDefault().Source;
string quotationText = quotation.Text;
if (string.IsNullOrEmpty(quotationText))
{
quotationText = quotation.CoreStatement;
}
bool TextAlreadyWrittenToAnAnnotation = false;
coveredRectsAfter = coveredRectsBefore;
double currentR = highlightColor.R;
double currentG = highlightColor.G;
double currentB = highlightColor.B;
double currentA = highlightColor.A;
ColorPt colorPt = new ColorPt(
currentR / 255,
currentG / 255,
currentB / 255
);
double highlightOpacity = currentA / 255;
foreach (int pageIndex in pages)
{
pdftron.PDF.Page page = document.GetPage(pageIndex);
if (page == null)
{
continue;
}
if (!page.IsValid())
{
continue;
}
List <Quad> quadsOnThisPage = annotation.Quads.Where(q => q.PageIndex == pageIndex && q.IsContainer == false).Distinct().ToList();
List <Rect> boxes = new List <Rect>();
foreach (Quad quad in quadsOnThisPage)
{
boxes.Add(new Rect(quad.MinX, quad.MinY, quad.MaxX, quad.MaxY));
}
Annot newAnnot = null;
// If we want to make the later annotation invisible, we should uncomment the following if then else, and comment out the line after that
if (boxes.Select(b => new { b.x1, b.y1, b.x2, b.y2 }).Intersect(coveredRectsAfter.Select(b => new { b.x1, b.y1, b.x2, b.y2 })).Count() == boxes.Count())
{
newAnnot = CreateSingleHighlightAnnot(document, boxes, colorPt, 0);
}
else
{
newAnnot = CreateSingleHighlightAnnot(document, boxes, colorPt, highlightOpacity);
}
// newAnnot = CreateSingleHighlightAnnot(document, boxes, colorPt, highlightOpacity);
if (!TextAlreadyWrittenToAnAnnotation)
{
newAnnot.SetContents(quotationText);
TextAlreadyWrittenToAnAnnotation = true;
}
page.AnnotPushBack(newAnnot);
if (newAnnot.IsValid() == false)
{
continue;
}
if (newAnnot.GetAppearance() == null)
{
newAnnot.RefreshAppearance();
}
coveredRectsAfter.AddRange(boxes);
}
}
static public void ProcessText(ElementReader page_reader)
{
// Begin text element
Console.WriteLine("Begin Text Block:");
Element element;
while ((element = page_reader.Next()) != null)
{
switch (element.GetType())
{
case Element.Type.e_text_end:
// Finish the text block
Console.WriteLine("End Text Block.");
return;
case Element.Type.e_text:
{
GState gs = element.GetGState();
ColorSpace cs_fill = gs.GetFillColorSpace();
ColorPt fill = gs.GetFillColor();
ColorPt outc = new ColorPt();
cs_fill.Convert2RGB(fill, outc);
ColorSpace cs_stroke = gs.GetStrokeColorSpace();
ColorPt stroke = gs.GetStrokeColor();
Font font = gs.GetFont();
Console.Write("Font Name: ");
Console.WriteLine(font.GetName());
// font.IsFixedWidth();
// font.IsSerif();
// font.IsSymbolic();
// font.IsItalic();
// ...
// double word_spacing = gs.GetWordSpacing();
// double char_spacing = gs.GetCharSpacing();
// Use element.GetCTM() if you are interested in the CTM
// (current transformation matrix).
if (font.GetType() == Font.Type.e_Type3)
{
//type 3 font, process its data
for (CharIterator itr = element.GetCharIterator(); itr.HasNext(); itr.Next())
{
page_reader.Type3FontBegin(itr.Current());
ProcessElements(page_reader);
page_reader.End();
}
}
else
{
Matrix2D ctm = element.GetCTM();
Matrix2D text_mtx = element.GetTextMatrix();
/*
* Matrix2D mtx = ctm * text_mtx;
* double font_sz_scale_factor = System.Math.Sqrt(mtx.m_b * mtx.m_b + mtx.m_d * mtx.m_d);
* double font_size = gs.GetFontSize();
* Console.Write(" Font Size: {0:f}", font_sz_scale_factor * font_size);
*
* ColorPt font_color = gs.GetFillColor();
* ColorSpace cs = gs.GetFillColorSpace();
*
* ColorPt rgb = new ColorPt();
* cs.Convert2RGB(font_color, rgb);
* Color font_color_rgb = Color.FromArgb(255, (byte)(rgb.get_c(0)*255),
* (byte)(rgb.get_c(1)*255), (byte)(rgb.get_c(2)*255));
*
*
* Console.WriteLine(" Font Color(RGB): red={0:d} green={1:d} blue={2:d}",
* (byte)(rgb.Get(0)*255),
* (byte)(rgb.Get(1)*255),
* (byte)(rgb.Get(2)*255));
*/
double x, y;
int char_code;
for (CharIterator itr = element.GetCharIterator(); itr.HasNext(); itr.Next())
{
Console.Write("Character code: ");
char_code = itr.Current().char_code;
if (char_code >= 32 || char_code <= 127)
{
// Print if in ASCII range...
Console.Write((char)char_code);
}
x = itr.Current().x; // character positioning information
y = itr.Current().y;
// To get the exact character positioning information you need to
// concatenate current text matrix with CTM and then multiply
// relative positioning coordinates with the resulting matrix.
//
Matrix2D mtx2 = ctm * text_mtx;
mtx2.Mult(ref x, ref y);
// Console.WriteLine(" Position: x={0:f} y={1:f}", x, y);
}
}
Console.WriteLine();
break;
}
}
}
}
public static void AnnotationsImport(QuotationType quotationType)
{
// Static Variables
PreviewControl previewControl = PreviewMethods.GetPreviewControl();
if (previewControl == null)
{
return;
}
PdfViewControl pdfViewControl = previewControl.GetPdfViewControl();
if (pdfViewControl == null)
{
return;
}
Document document = pdfViewControl.Document;
if (document == null)
{
return;
}
Location location = previewControl.ActiveLocation;
if (location == null)
{
return;
}
List <Reference> references = Program.ActiveProjectShell.Project.References.Where(r => r.Locations.Contains(location)).ToList();
if (references == null)
{
return;
}
if (references.Count != 1)
{
MessageBox.Show("The document is not linked with exactly one reference. Import aborted.");
}
Reference reference = references.FirstOrDefault();
if (references == null)
{
return;
}
LinkedResource linkedResource = location.Address;
string pathToFile = linkedResource.Resolve().LocalPath;
PreviewBehaviour previewBehaviour = location.PreviewBehaviour;
// Dynamic Variables
string colorPickerCaption = string.Empty;
List <ColorPt> selectedColorPts = new List <ColorPt>();
int annotationsImportedCount = 0;
bool ImportEmptyAnnotations = false;
bool RedrawAnnotations = true;
// The Magic
Form commentAnnotationsColorPicker = new AnnotationsImporterColorPicker(quotationType, document.ExistingColors(), out selectedColorPts);
DialogResult dialogResult = commentAnnotationsColorPicker.ShowDialog();
RedrawAnnotations = AnnotationsImporterColorPicker.RedrawAnnotationsSelected;
ImportEmptyAnnotations = AnnotationsImporterColorPicker.ImportEmptyAnnotationsSelected;
if (dialogResult == DialogResult.Cancel)
{
MessageBox.Show("Import of external highlights cancelled.");
return;
}
List <Annotation> temporaryAnnotations = new List <Annotation>();
if (ImportEmptyAnnotations || quotationType == QuotationType.Comment)
{
for (int pageIndex = 1; pageIndex <= document.GetPageCount(); pageIndex++)
{
pdftron.PDF.Page page = document.GetPage(pageIndex);
if (page.IsValid())
{
List <Annot> annotsToDelete = new List <Annot>();
for (int j = 0; j < page.GetNumAnnots(); j++)
{
Annot annot = page.GetAnnot(j);
if (annot.GetSDFObj() != null && (annot.GetType() == Annot.Type.e_Highlight || annot.GetType() == Annot.Type.e_Unknown))
{
Highlight highlight = new Highlight(annot);
if (highlight == null)
{
continue;
}
ColorPt annotColorPt = annot.GetColorAsRGB();
if (selectedColorPts.Where(e =>
e.Get(0) == annotColorPt.Get(0) &&
e.Get(1) == annotColorPt.Get(1) &&
e.Get(2) == annotColorPt.Get(2) &&
e.Get(3) == annotColorPt.Get(3)
).Count() == 0)
{
continue;
}
Annotation temporaryAnnotation = highlight.TemporaryAnnotation();
location.Annotations.Add(temporaryAnnotation);
temporaryAnnotations.Add(temporaryAnnotation);
}
} // end for (int j = 1; j <= page.GetNumAnnots(); j++)
} // end if (page.IsValid())
} // end for (int i = 1; i <= document.GetPageCount(); i++)
previewControl.ShowNoPreview();
location.PreviewBehaviour = PreviewBehaviour.SkipEntryPage;
previewControl.ShowLocationPreview(location);
document = new Document(pathToFile);
}
//Uncomment here to get an overview of all annotations
//int x = 0;
//foreach (Annotation a in location.Annotations)
//{
// System.Diagnostics.Debug.WriteLine("Annotation " + x.ToString());
// int y = 0;
// foreach (Quad q in a.Quads)
// {
// System.Diagnostics.Debug.WriteLine("Quad " + y.ToString());
// System.Diagnostics.Debug.WriteLine("IsContainer: " + q.IsContainer.ToString());
// System.Diagnostics.Debug.WriteLine("MinX: " + q.MinX.ToString());
// System.Diagnostics.Debug.WriteLine("MinY: " + q.MinY.ToString());
// System.Diagnostics.Debug.WriteLine("MaxX: " + q.MaxX.ToString());
// System.Diagnostics.Debug.WriteLine("MaxY: " + q.MaxY.ToString());
// y = y + 1;
// }
// x = x + 1;
//}
int v = 0;
for (int pageIndex = 1; pageIndex <= document.GetPageCount(); pageIndex++)
{
pdftron.PDF.Page page = document.GetPage(pageIndex);
if (page.IsValid())
{
List <Annot> annotsToDelete = new List <Annot>();
for (int j = 0; j < page.GetNumAnnots(); j++)
{
Annot annot = page.GetAnnot(j);
if (annot.GetSDFObj() != null && (annot.GetType() == Annot.Type.e_Highlight || annot.GetType() == Annot.Type.e_Unknown))
{
Highlight highlight = new Highlight(annot);
if (highlight == null)
{
continue;
}
ColorPt annotColorPt = annot.GetColorAsRGB();
if (selectedColorPts.Where(e =>
e.Get(0) == annotColorPt.Get(0) &&
e.Get(1) == annotColorPt.Get(1) &&
e.Get(2) == annotColorPt.Get(2) &&
e.Get(3) == annotColorPt.Get(3)
).Count() == 0)
{
continue;
}
// Uncomment here to get an overview of all highlights
//System.Diagnostics.Debug.WriteLine("Highlight " + v.ToString());
//int w = 0;
//foreach (Quad q in highlight.AsAnnotationQuads())
//{
// System.Diagnostics.Debug.WriteLine("Quad " + w.ToString());
// System.Diagnostics.Debug.WriteLine("IsContainer: " + q.IsContainer.ToString());
// System.Diagnostics.Debug.WriteLine("MinX: " + q.MinX.ToString());
// System.Diagnostics.Debug.WriteLine("MinY: " + q.MinY.ToString());
// System.Diagnostics.Debug.WriteLine("MaxX: " + q.MaxX.ToString());
// System.Diagnostics.Debug.WriteLine("MaxY: " + q.MaxY.ToString());
// w = w + 1;
//}
//v = v + 1;
if (highlight.UpdateExistingQuotation(quotationType, location))
{
annotationsImportedCount++;
continue;
}
if (highlight.CreateNewQuotationAndAnnotationFromHighlight(quotationType, ImportEmptyAnnotations, RedrawAnnotations, temporaryAnnotations))
{
annotationsImportedCount++;
continue;
}
}
} // end for (int j = 1; j <= page.GetNumAnnots(); j++)
foreach (Annot annot in annotsToDelete)
{
page.AnnotRemove(annot);
}
} // end if (page.IsValid())
} // end for (int i = 1; i <= document.GetPageCount(); i++)
foreach (Annotation annotation in temporaryAnnotations)
{
location.Annotations.Remove(annotation);
}
location.PreviewBehaviour = previewBehaviour;
MessageBox.Show(annotationsImportedCount.ToString() + " highlights have been imported.");
}
