Text output and kerning?
in [MFC]
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From: Mihai N. on 11 Mar 2010 03:17 > Can you tell me what "precision" parameter you used in the LOGFONT or > CreateFont? Here is the full dump: lfHeight = -27 lfWidth = 0 lfEscapement = 0 lfOrientation = 0 lfWeight = 400 lfItalic = 0 lfUnderline = 0 lfStrikeOut = 0 lfCharSet = 0 lfOutPrecision = OUT_STROKE_PRECIS lfClipPrecision = CLIP_STROKE_PRECIS lfQuality = DRAFT_QUALITY lfPitchAndFamily = VARIABLE_PITCH | FF_ROMAN lfFaceName = _T("Times New Roman") It is what the font selection dialog gives me by default, I did not mess with it in any way. And nothing fancy about the drawing either: wnd->GetClientRect( &m_Rect ); CDC *pdc = wnd->GetDC(); CBrush brush(RGB(0xff,0xff,0xff)); pdc->FillRect( m_Rect, &brush ); CFont *pfOld = pdc->SelectObject( &m_Font ); pdc->SetBkMode( TRANSPARENT ); pdc->DrawText( inString, inString.GetLength(), m_Rect, 0 ); pdc->SelectObject( pfOld ); wnd->ReleaseDC( pdc ); And it might also matter how the kerning is created. Some applications don't recognize the GPOS kern unless ther is also a GSUB table (don't ask me why) Might try to dump Times New Roman and take a look inside TTX at http://www.letterror.com/code/ttx/ or TTFdump at http://www.microsoft.com/typography/tools/tools.aspx can come in handy -- Mihai Nita [Microsoft MVP, Visual C++] http://www.mihai-nita.net ------------------------------------------ Replace _year_ with _ to get the real email
From: Mihai N. on 11 Mar 2010 03:19 > I looked into Uniscribe some while back and it looked complicated. :-( That's because it is :-) > (And in any case the distinction between Latin and Arabic scripts is now > essentially gone: the characters are just there at the appropriate Unicode > code points in the font, and it would therefore seem odd if text output > respected kerning in one area of the font but not another.) Actually, Arabic fonts have very little use of kerning (if any). -- Mihai Nita [Microsoft MVP, Visual C++] http://www.mihai-nita.net ------------------------------------------ Replace _year_ with _ to get the real email
From: David Webber on 12 Mar 2010 06:18 "Mihai N." <nmihai_year_2000(a)yahoo.com> wrote in message news:Xns9D382EE5A03AMihaiN(a)207.46.248.16... > >> Can you tell me what "precision" parameter you used in the LOGFONT or >> CreateFont? > > Here is the full dump: > lfHeight = -27 > lfWidth = 0 > lfEscapement = 0 > lfOrientation = 0 > lfWeight = 400 > lfItalic = 0 > lfUnderline = 0 > lfStrikeOut = 0 > lfCharSet = 0 > lfOutPrecision = OUT_STROKE_PRECIS > lfClipPrecision = CLIP_STROKE_PRECIS > lfQuality = DRAFT_QUALITY > lfPitchAndFamily = VARIABLE_PITCH | FF_ROMAN > lfFaceName = _T("Times New Roman") >... Thanks - I appear to be using logfont.lfOutPrecision = OUT_TT_PRECIS; logfont.lfClipPrecision = CLIP_DEFAULT_PRECIS; but the code dates from somewhere up to 20 years ago and I'm not sure if I've reviewed it since! I'll investigate the difference. >... > And it might also matter how the kerning is created. > Some applications don't recognize the GPOS kern unless > ther is also a GSUB table (don't ask me why) > > Might try to dump Times New Roman and take a look inside > TTX at http://www.letterror.com/code/ttx/ or > TTFdump at http://www.microsoft.com/typography/tools/tools.aspx > can come in handy So far I've just been looking at text output. Conclusions are weird: 2. Microsoft Word 2007, under Vista or Windows 7, gives a choice - kerned or unkerned. It works for Times New Roman and it also works for my font. 2a. My MFC App under Vista: doesn't kern either TNR; or my font. 2b. My MFC App under 7: kerns TNR but *doesn't* kern my font. Looks like I may have to experiment with LOGFONT settings *and* learn about GPOS and GSUB (about which I am thus far completely ignorant, so thanks for the hint!) Dave -- David Webber Mozart Music Software http://www.mozart.co.uk For discussion and support see http://www.mozart.co.uk/mozartists/mailinglist.htm
From: Joseph M. Newcomer on 13 Mar 2010 21:58 See below... On Thu, 11 Mar 2010 00:17:15 -0800, "Mihai N." <nmihai_year_2000(a)yahoo.com> wrote: > >> Can you tell me what "precision" parameter you used in the LOGFONT or >> CreateFont? > >Here is the full dump: > lfHeight = -27 > lfWidth = 0 **** Note that it is unusual to provide a width other than 0 except for special effects (nonzero value produce really weird-looking fonts!) **** > lfEscapement = 0 > lfOrientation = 0 > lfWeight = 400 **** 400 is FW_NORMAL **** > lfItalic = 0 > lfUnderline = 0 > lfStrikeOut = 0 > lfCharSet = 0 > lfOutPrecision = OUT_STROKE_PRECIS > lfClipPrecision = CLIP_STROKE_PRECIS > lfQuality = DRAFT_QUALITY > lfPitchAndFamily = VARIABLE_PITCH | FF_ROMAN > lfFaceName = _T("Times New Roman") > >It is what the font selection dialog gives me by default, I did >not mess with it in any way. > >And nothing fancy about the drawing either: > > wnd->GetClientRect( &m_Rect ); > CDC *pdc = wnd->GetDC(); > > CBrush brush(RGB(0xff,0xff,0xff)); > pdc->FillRect( m_Rect, &brush ); > > CFont *pfOld = pdc->SelectObject( &m_Font ); > pdc->SetBkMode( TRANSPARENT ); > pdc->DrawText( inString, inString.GetLength(), m_Rect, 0 ); > pdc->SelectObject( pfOld ); > > wnd->ReleaseDC( pdc ); > >And it might also matter how the kerning is created. >Some applications don't recognize the GPOS kern unless >ther is also a GSUB table (don't ask me why) > >Might try to dump Times New Roman and take a look inside >TTX at http://www.letterror.com/code/ttx/ or >TTFdump at http://www.microsoft.com/typography/tools/tools.aspx >can come in handy Joseph M. Newcomer [MVP] email: newcomer(a)flounder.com Web: http://www.flounder.com MVP Tips: http://www.flounder.com/mvp_tips.htm
From: David Webber on 14 Mar 2010 20:19 "Joseph M. Newcomer" <newcomer(a)flounder.com> wrote in message news:k3kop557t378trcetmd7m4v1u8fckbc99a(a)4ax.com... [LOGFONT] > Note that it is unusual to provide a width other than 0 except for special > effects > (nonzero value produce really weird-looking fonts!) Yes - I stick to zero as a matter of course. >> lfWeight = 400 > 400 is FW_NORMAL Yes - I usually use FW_NORMAL or FW_BOLD (=700 IIRC) >> lfItalic = 0 >> lfUnderline = 0 >> lfStrikeOut = 0 >> lfCharSet = 0 >> lfOutPrecision = OUT_STROKE_PRECIS >> lfClipPrecision = CLIP_STROKE_PRECIS >> lfQuality = DRAFT_QUALITY >> lfPitchAndFamily = VARIABLE_PITCH | FF_ROMAN >> lfFaceName = _T("Times New Roman") It doesn't look like any of these affect kerning and... >>And it might also matter how the kerning is created. >>Some applications don't recognize the GPOS kern unless >>ther is also a GSUB table (don't ask me why) As far as I can see (after a little reading) High Logic Font Creator doesn't allow me a GSUB table. >>Might try to dump Times New Roman and take a look inside >>TTX at http://www.letterror.com/code/ttx/ or >>TTFdump at http://www.microsoft.com/typography/tools/tools.aspx >>can come in handy So my next step is to look at these. I am also starting to wonder if GDI+ text output will give different results. Dave -- David Webber Mozart Music Software http://www.mozart.co.uk For discussion and support see http://www.mozart.co.uk/mozartists/mailinglist.htm
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