Beiträge von chrigu

Is wPDF thread safe ? I mean, can I create dynamically a TWPPDFPrinter, use it and then through it away in a background thread?

Do I have to set special compiler defines for that ?

cu Christian

When do you think, unicode support will be available in wPDF?

cu Christian

Using SetTextAlign doesn't give better results.

Can you give me an example on how to use the SetViewPortAPI? I use the following code arround your component:

const
  INCHES_PER_MILLIMETER = 1 / 25.4;
  PDF_RESOLUTION        = 300;  // Pixel per Inch


  PDF_A4_PAGEHEIGHT     = Round(297 * INCHES_PER_MILLIMETER * PDF_RESOLUTION);  // Masse in Pixel
  PDF_A4_PAGEWIDTH      = Round(210 * INCHES_PER_MILLIMETER * PDF_RESOLUTION);


function TBSPdf.MMToPixel(AMillimeter: Double): Integer;
begin
  Result := Round(AMillimeter * INCHES_PER_MILLIMETER * PDF_RESOLUTION);
end; // TBSPdf.MMToPixel


procedure TBSPdf.StartPage;
begin
  EndPage;
  FPDF.StartPage(PDF_A4_PAGEWIDTH, PDF_A4_PAGEHEIGHT, PDF_RESOLUTION, PDF_RESOLUTION, 0);
  FPageIsOpen := True;
end; // TBSPdf.StartPage


procedure TBSPdf.MmTextOut(AMmX, AMmY: Double; const AText: String; AAlign: TAlignment);
var
  alignMode : Cardinal;
  oldAlign  : Cardinal;
begin
  if AText = '' then Exit;
  alignMode := TA_TOP or TA_NOUPDATECP;
  case AAlign of
  taRightJustify:
    alignMode := alignMode or TA_RIGHT;
  taCenter:
    alignMode := alignMode or TA_CENTER;
  else
    alignMode := alignMode or TA_LEFT;
  end; // case
  oldAlign := SetTextAlign(FPDF.Canvas.Handle, alignMode);
  FPDF.Canvas.TextOut(MMToPixel(AMmX), MMToPixel(AMmY), AText);
  SetTextAlign(FPDF.Canvas.Handle, oldAlign);
end; // TBSPdf.MmTextOut

I have some troubles with text spacing.

By default, sometimes the spacing between words is way to big. Then I tried the mode wpExactTextPositioning, but now there are uncontrolled spaces in the words (see "Switzerland" in the example).
Finally I set the mode to wpDontAdjustTextSpacing and the text looks fine.

The problem I have now is, that with Pdf.Canvas.TextWidth I don't get correct results, so I cannot right align the text correctly (see example the columns with month/year).

My question is, how can I calculate the exact width of the text, so that right alignment works with mode wpDontAdjustTextSpacing too?

Examples are at:
http://www.splash-software.ch/host/TEST_Normal.pdf
http://www.splash-software.ch/host/TEST_ExactTextPos.pdf
http://www.splash-software.ch/host/TEST_Dont…TextSpacing.pdf

cu Christian

Hello,

I want to create a PDF, where I would like to use "Arial narrow" as font. Now it looks like, this is not available on all computers.

- What happens with the PDF, if someone doesn't have this font on his computer?
- Since I have this font, am I allowed to provide the TTF file on my website?

cu Christian