Creating pdf files with ScaledRichView and wPdf
Posted: Tue Oct 14, 2014 5:33 pm
I struggled throuh this bit of code for many hours. The documentation is pretty poor or perhaps the writer is only thinking a little different then me.
One day we compared notes and so I don't want to keep the solution back for somebody with similar problems.
I didn't delete some surrounding code like support of scrollbar and progress notification
One day we compared notes and so I don't want to keep the solution back for somebody with similar problems.
I didn't delete some surrounding code like support of scrollbar and progress notification
Code: Select all
procedure PrintPDF;
var Units: TRVUnits;
Res: Integer;
I: Integer;
PageF, PageT: Integer;
begin
Units := SRichView.UnitsProgram;
Res := Screen.PixelsPerInch;
WPDF_Start('UserName', 'ABCUserCodeXYZ');
// document information
wPdf.Info.Author := BN.Strings[tcExAuth.Index];
wPdf.Info.Title := BN.Strings[tcExTit.Index];
wPdf.Info.Subject := BN.Strings[tcExType.Index];
wPdf.Info.Keywords := BN.Strings[tcExTags.Index];
// some output modes
if rbPDFFontEmbed.Checked or (rgPMode.ItemIndex = 3) then
wPdf.FontMode := wpEmbedTrueTypeFonts
else
wPdf.FontMode := wpUseTrueTypeFonts;
if rbPDFFontEmbedCid.Checked then
wPdf.CidFontMode := wpCIDUnicode
else
wPdf.CidFontMode := wpCIDOff;
if rbPDFCompress.Checked then
wPdf.CompressStreamMethod := wpCompressFastFlate
else
wPdf.CompressStreamMethod := wpCompressNone;
SRichView.UnitsProgram := rvuPixels;
// select pages
PageF := 1;
PageT := SRichView.PageCount;
if not sbPrintRange.Down then
begin
PageF := iePageF.Value;
PageT := iePageT.Value;
end;
// progressbar
pb2.Max := PageT;
pb2.Position := PageF-1;
paPDF.Visible := True;
try
// output process
wPdf.FileName := sd6.FileName;
wPdf.BeginDoc;
try
for I := PageF to PageT do
begin
// next three lines are the secret
wPdf.StartPage(Round(SRichView.PageProperty.PageWidth), Round(SRichView.PageProperty.PageHeight), Res, Res, 0);
SRichView.DrawPage(I, Round(SRichView.PageProperty.PageWidth), Round(SRichView.PageProperty.PageHeight), 0, 0, wPdf.Canvas, False, False, False);
wPdf.EndPage;
pb2.Position := I;
laPDF.Caption := Format('pdf output page %d to %d', [I, PageT]);
Application.ProcessMessages;
end;
finally
wPdf.EndDoc;
end;
finally
SRichView.UnitsProgram := Units;
paPDF.Visible := False;
end;
end;