mORMot Open Source

Christope

Member

Registered: 2020-05-23

Posts: 4

CreateHyperLink function

Working with Delphi 10.
I started to create a PDF document, it works ok so far.
Then I tried to create a hyperlink over part of the text, by calling CreateHyperling with the right parameters. When I open the pdf doc, the cursor changes as expected when passing over the text, but nothing happens when I click. Did I miss something?
Thanks

asdjklf

Member

Registered: 2018-07-18

Posts: 9

Re: CreateHyperLink function

There is a bug and it was mentioned multiple times here, but somehow it is still not fixed. I am not sure why. Maybe the authors refuse to fix this? They never answered as far as I know.

ab

Administrator

From: France

Registered: 2010-06-21

Posts: 14,661

Website

Re: CreateHyperLink function

Pull request maybe?

asdjklf

Member

Registered: 2018-07-18

Posts: 9

Re: CreateHyperLink function

Well, my last pull request was not merged for over a month without a comment: https://github.com/synopse/mORMot/pull/296
Why would I provide another?

andyhill

Member

Registered: 2014-08-10

Posts: 4

Re: CreateHyperLink function

I am using Delphi Alexander and have SynPDF working but I need to create a PDF document with a HyperLink (URL) please advise - thanks

ab

Administrator

From: France

Registered: 2010-06-21

Posts: 14,661

Website

Re: CreateHyperLink function

You have TPdfDocument.CreateHyperLink().

andyhill

Member

Registered: 2014-08-10

Posts: 4

Re: CreateHyperLink function

procedure TForm1.Button1Click(Sender: TObject);
var
lPdf   : TPdfDocument;
lPage  : TPdfPage;
begin
  lPdf := TPdfDocument.Create;
  try
    lPdf.Info.Author        := 'Tester';
    lPdf.Info.CreationDate  := Now;
    lPdf.Info.Creator       := 'Tester';
    lPdf.DefaultPaperSize   := psA4;
    lPage := lPDF.AddPage;
    lPdf.Canvas.SetFont('Helvetica',10.0,[]);
    lPdf.Canvas.SetLeading(lPDF.Canvas.Page.FontSize);
    lPdf.Canvas.SetLineWidth(0.1);

    lPdf.Canvas.BeginText;
    lPdf.Canvas.TextOut( 300, 700,  'This is some text.');
    lPdf.Canvas.EndText;
    lPdf.CreateHyperLink(); // NO SUCH FUNCTION - What Have I missed ?
    lPdf.SaveToFile('....\test.pdf');
  finally
    lPdf.Free;
  end;
end;

andyhill

Member

Registered: 2014-08-10

Posts: 4

Re: CreateHyperLink function

Version 1.18.613

andyhill

Member

Registered: 2014-08-10

Posts: 4

Re: CreateHyperLink function

OK, found a later version 1.18.6439 - CreateHyperLink Exists.

Is there an easy way to calculate the text height for TPdfRect ?

procedure TForm1.Button1Click(Sender: TObject);
var
lPdf   : TPdfDocument;
lPage  : TPdfPage;
r      : TPdfRect;
begin
  r.Left:= 300;
  r.Top:=  700;
  r.Right:= 500;
  r.Bottom:= 750;
  lPdf := TPdfDocument.Create;
  try
    lPdf.Info.Author        := 'Tester';
    lPdf.Info.CreationDate  := Now;
    lPdf.Info.Creator       := 'Tester';
    lPdf.DefaultPaperSize   := psA4;
    lPage := lPDF.AddPage;
    lPdf.Canvas.SetFont('Helvetica',10.0,[]);
    lPdf.Canvas.SetLeading(lPDF.Canvas.Page.FontSize);
    lPdf.Canvas.SetLineWidth(0.1);

    lPdf.Canvas.BeginText;
    lPdf.Canvas.TextOut( 300, 700,  'Axfite Pty Ltd.');
//    lPdf.Canvas.EndText;
    lPdf.CreateHyperLink(r, 'https://axfite.com.au', abSolid, 1);
    lPdf.Canvas.EndText;

    lPdf.SaveToFile('....\test.pdf');
  finally
    lPdf.Free;
  end;
end;

Also, why did rect border line not paint ?

Last edited by andyhill (2022-12-03 07:28:33)

surfzone

Member

Registered: 2023-06-25

Posts: 7

Re: CreateHyperLink function

The problem is in r.Top > r.Bottom if you put

  r.Left:= 300;
  r.Top:=  750;
  r.Right:= 500;
  r.Bottom:= 700;

On PdfCanvas, 0 is bottom and 852 is top

ab

Administrator

From: France

Registered: 2010-06-21

Posts: 14,661

Website

Re: CreateHyperLink function

For a direct PDF Canvas, the coordinates are inverted in respect to VCL/LCL.