Sigil/Qt does not display the font but ADE

rubeus · 01-03-2015, 03:37 PM

-----

theducks · 01-03-2015, 04:32 PM

Quote:

Originally Posted by rubeus

Hi,

i'm using Sigil 0.8.2. Win64. In preview mode, the text isnt rendered in the given font, so i had a look if i made an error. As i cant find one i tried to display the epub in ADE 2, and -surprise- the text is rendered in the specified font.

Its the first time Sigil cant display/use a specified font for me, so i'm wondering where the error is: do i still have one? Is it an error in Qt? Is something wrong with the font?

r:/ubeus

Other than the 'internal name' font mismatch, Calibre editor Check says OK,
then it, Caliber edit, will crash QT5 (XP) if you open the file to edit

Have you validated the font file?

DiapDealer · 01-03-2015, 05:14 PM

I'm able to open the epub in calibre's editor, but the font still doesn't render. Must be something about that particular font that Qt5's WebKit just doesn't like.

Doitsu · 01-03-2015, 05:30 PM

I just did a quick test with the unofficial 32/64bit Linux 0.8.2 editions, and the embedded font is shown. This might be a Windows-specific Qt issue.

EDIT: It also displays OK with the Linux versions of Calibre Book Viewer and Calibre Editor.

Toxaris · 01-04-2015, 02:03 AM

You can always try to convert the font to ttf to see if that fixes the issue with the font.

rubeus · 01-04-2015, 03:37 AM

Thx,

i tried the Microsoft Font Validator, but as i'm only a user of fonts and do not have a glue about font internas i'm unable to interpret the result. There were some yellow and red areas, but the red areas are pointing to versioning and signatures only.

Finally converting from otf to ttf did the trick. Still the validator has some issues, but the signature error is gone.

Interesting that different Qt versions/platforms do have a problem with the font and others not.

Thx everyone for helping.

r:/ubeus

pdurrant · 01-04-2015, 05:07 AM

Quote:

Originally Posted by alicepattinson

Spam - A banned spammer.

You may have the same symptom, but possibly not the same problem. I suggest you start your own thread and attach your own sample (copyright-free) ePub.

kovidgoyal · 01-04-2015, 07:52 AM

Just FYI, on windows Qt uses the Microsoft GDI engine for rendering text. The GDI engine is ancient and does not support OTF fonts with CFF font data.

Unless Qt switches to using DirectWrite on windows, you will not be able to see OTF fonts with CFF font data in any Qt based application, such as calibre or sigil.

DiapDealer · 01-04-2015, 09:32 AM

Good to know exactly where the problem lies. Thanks for the info.

01-03-2015, 03:37 PM	#1
rubeus Banned Posts: 272 Karma: 1224588 Join Date: Sep 2014 Device: Sony PRS 650	Sigil/Qt does not display the font but ADE ----- Last edited by rubeus; 01-06-2015 at 03:09 AM.

01-03-2015, 05:30 PM	#4
Doitsu Grand Sorcerer Posts: 5,680 Karma: 23983815 Join Date: Dec 2010 Device: Kindle PW2	I just did a quick test with the unofficial 32/64bit Linux 0.8.2 editions, and the embedded font is shown. This might be a Windows-specific Qt issue. EDIT: It also displays OK with the Linux versions of Calibre Book Viewer and Calibre Editor. Attached Thumbnails Last edited by Doitsu; 01-03-2015 at 05:48 PM.

01-04-2015, 07:52 AM	#8
kovidgoyal creator of calibre Posts: 45,195 Karma: 27110894 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Just FYI, on windows Qt uses the Microsoft GDI engine for rendering text. The GDI engine is ancient and does not support OTF fonts with CFF font data. Unless Qt switches to using DirectWrite on windows, you will not be able to see OTF fonts with CFF font data in any Qt based application, such as calibre or sigil. Last edited by kovidgoyal; 01-04-2015 at 08:44 AM.

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01-03-2015, 05:14 PM	#3
DiapDealer Grand Sorcerer Posts: 28,358 Karma: 203720150 Join Date: Jan 2010 Device: Nexus 7, Kindle Fire HD	I'm able to open the epub in calibre's editor, but the font still doesn't render. Must be something about that particular font that Qt5's WebKit just doesn't like.

01-04-2015, 02:03 AM	#5
Toxaris Wizard Posts: 4,520 Karma: 121692313 Join Date: Oct 2009 Location: Heemskerk, NL Device: PRS-T1, Kobo Touch, Kobo Aura	You can always try to convert the font to ttf to see if that fixes the issue with the font.

01-04-2015, 03:37 AM	#6
rubeus Banned Posts: 272 Karma: 1224588 Join Date: Sep 2014 Device: Sony PRS 650	Thx, i tried the Microsoft Font Validator, but as i'm only a user of fonts and do not have a glue about font internas i'm unable to interpret the result. There were some yellow and red areas, but the red areas are pointing to versioning and signatures only. Finally converting from otf to ttf did the trick. Still the validator has some issues, but the signature error is gone. Interesting that different Qt versions/platforms do have a problem with the font and others not. Thx everyone for helping. r:/ubeus

01-04-2015, 09:32 AM	#9
DiapDealer Grand Sorcerer Posts: 28,358 Karma: 203720150 Join Date: Jan 2010 Device: Nexus 7, Kindle Fire HD	Good to know exactly where the problem lies. Thanks for the info.

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