0003604: Rendering of synthesized bold/italic broken

Notes
(0005662 - 483 - 537 - 537 - 537 - 537 - 537) wiz 07-09-06 07:55	Some more research. The font is Accuny 18pt One problem seems to be the boxing of the font. This is true even for the normal font. Just type several spaces in a row. They are showing something of the font glyph that preceedes them. The problem exist in 3.9a-6665 and not in 3.8a-so it seems it must have been introduced somewhere in 3.8-5976. I seem to remember another issue that mentioned this. Maybe its fixed in squeakland's version? Yours in service, Jerome Peace

(0005698 - 1290 - 2257 - 2291 - 2291 - 2291 - 2291) wiz 07-10-06 02:02	More analysis try ( StrikeFontSet familyName: 'Accuny' size: 24 emphasized: 3) glyphs asMorph openInHand and ( StrikeFont familyName: 'Accuny' size: 24 emphasized: 3) glyphs asMorph openInHand I got two different sized forms StrikeFontSet is recent and has several obvious bugs E.G. yo 12/27/2002 13:52 StrikeFontSet makeBoldGlyphs {emphasis} makeBoldGlyphs "Make a bold set of glyphs with same widths by ORing 1 bit to the right (requires at least 1 pixel of intercharacter space)" \| g bonkForm font \| 1 to: fontArray size do: [:i \| font _ fontArray at: i. font ifNotNil: [ g _ font glyphs deepCopy. bonkForm _ (Form extent: 1@16) fillBlack offset: -1@0. "*1@16?!*" self bonk: g with: bonkForm at: i. g copyBits: g boundingBox from: g at: (1@0) clippingBox: g boundingBox rule: Form under fillColor: nil. (fontArray at: i) setGlyphs: g. ]. ]. Which hard codes a font height. Also, though I haven't checked carefully. It seems to me the code for bonking is upsidedown because x@0 is the top of the form and you want to erase pixels at the bottom. This is why space has the bar at the bottomleft . it never gets erased. I could find more but it seems to me its the coders problem to fix his mistakes.

(0005826 - 646 - 724 - 724 - 724 - 724 - 724) wiz 07-13-06 04:02	For a dramatic test Compare the gif ColAccurny24p5976.gif with the ColAccuny24p5976.morph that created it. Load both into a fresh 3.9-7041 (or there abouts) The gif and the morph have transparent backgrounds so they can be superimposed (move the morph over the gif so the column doesn't capture things) Getting these two things to superpose exactly in all empasis could be made into a good automated test. Yours in service, --Jerome Peace. P.S. I couldn't find yo's initials in the send a note list. So I have not contacted him yet. If someone has a good way to get him involved please do so. His input should be present.

(0005951 - 1971 - 2170 - 2170 - 2170 - 2170 - 2170) wiz 07-16-06 08:19	Hmm. More analysis. I've looked at StrikeFont enough to learn that each character is supposed to come with its own 'space' as part of its width. This suggest fixing the undefined character box so that it doesn't take up the whole glyph. This is just a minor portion of the trouble its not the cause of the problem. It also seems to me that the undefined characters only need to show up as one glyph with the map set to point to it at the appropriate times. This would make maintaining it easier. Non printing control characters would be mapped differently so the box would not appear for line feeds. Also the appearance or disappearence of the normally invisible characters could be controled by swapping maps. In 3.7 the width of the glyphs grow when made bold or italic or both. The problem seems to be that that is not happening in the routines afer 3.8 So the bonking is clobbering part of the characters. usually the final part. I propose testing this by having a test pattern font family. The font would consist of glyph filling patterns (checker board or stripes or vertical or horizontal lines or boxes. ) Testing will show which demonstrates the problems best. In each test font you would want a character of each width. You would want a test font for each point size and for each accent/descent combination in that point size. Then a prepared 'good' copy of the derived test fonts should exactly match a current derivation of the set. That would be the sunit test. The test fonts would also want to have examples so they could be judged by eye as well. That will help diagnose what's gone wrong early in any development effort. One of the things delaying me in doing this is I can't figure out how to fileout a strikefont from 3.7 (the last known working derived fonts were there.) In a way that they can be read back in to a later squeak. So help would be appreciated. Yours in serrvice, -- Jerome Peace

(0005958 - 1494 - 1766 - 1766 - 1876 - 1876 - 1876) wiz 07-17-06 06:07	Useful goodies uploaded: StrikeFont-col...MagnifiedBy.st StrikeFont-asThumbnail.st StrikeFontAsTnail-wiz.1.cs From the cs preamble: 'From Squeak3.9alpha of 4 July 2005 [latest update: 0007045] on 16 July 2006 at 11:51:43 pm'! "Change Set: StrikeFontAsTnail-wiz Date: 16 July 2006 Author: (wiz) Jerome Peace wiz 7/16/2006 23:36 Add display facilities to StrikeFont to help debug. asThumbnail needs the ThumbnailImageMorph so this cs is relevant to 3.9 after that was introduced. Current squeak is now 7046 so any one after that will do. colorFormMagnifiedBy: aNumber will work with any squeak as far back as 3.7 final. It returns a form which can be displayed. The best use is to inspect the font in question and to eval 'self asThumbnail' or '(self colorFormMagnifiedBy: 1) asMorph openCenteredInWorld.' "! StrikeFont-col...MagnifiedBy.st is worth considering as a enhancement to strike font. StrikeFont-asThumbnail.st is catagorized as a morphic extention because of its dependence on a recently introduced morph. It needs to be loaded after the previious goodie. StrikeFontAsTnail-wiz.1.cs is just a change set with the two goodies together. I uploaded mostly to get the preamble on record. If you are just debugging ( in beta 3.9) load the change set. If you are updateing the graphics package go with the goodie since it doesn't cause mischief by reorganizing the catagories. Yours in service, -- Jerome Peace

Issue History
Date Modified	Username	Field	Change
05-11-06 01:39	andreas	New Issue
05-11-06 01:39	andreas	Status	new => assigned
05-11-06 01:39	andreas	Assigned To	=> KenCausey
05-11-06 01:39	andreas	File Added: TextPlain.gif
05-11-06 01:40	andreas	File Added: TextBold.gif
05-11-06 01:40	andreas	File Added: TextItalic.gif
05-11-06 01:40	andreas	File Added: TextBoldItalic.gif
05-11-06 01:42	andreas	File Deleted: TextPlain.gif
05-11-06 01:42	andreas	File Deleted: TextBold.gif
05-11-06 01:42	andreas	File Deleted: TextItalic.gif
05-11-06 01:42	andreas	File Deleted: TextBoldItalic.gif
05-11-06 01:42	andreas	File Added: TextPlain.gif
05-11-06 01:43	andreas	File Added: TextBold.gif
05-11-06 01:43	andreas	File Added: TextItalic.gif
05-11-06 01:43	andreas	File Added: TextBoldItalic.gif
05-11-06 19:05	KenCausey	Assigned To	KenCausey => andreas
05-11-06 19:05	KenCausey	Category	Any => Graphics
07-09-06 05:48	rootbeer	Issue Monitored: rootbeer
07-09-06 07:55	wiz	Note Added: 0005662
07-10-06 02:02	wiz	Note Added: 0005698
07-13-06 03:52	wiz	File Added: ColAccurny24p5976.gif
07-13-06 03:52	wiz	File Added: ColAccurny24p6665.morph
07-13-06 03:55	wiz	File Added: ColAccuny24p5976.morph
07-13-06 04:02	wiz	Note Added: 0005826
07-16-06 08:19	wiz	Note Added: 0005951
07-17-06 05:52	wiz	File Added: StrikeFont-col...MagnifiedBy.st
07-17-06 05:53	wiz	File Added: StrikeFont-asThumbnail.st
07-17-06 05:54	wiz	File Added: StrikeFontAsTnail-wiz.1.cs
07-17-06 06:07	wiz	Note Added: 0005958
07-03-07 03:48	wiz	Relationship added	related to 0006554
07-23-07 02:39	wiz	Relationship added	child of 0006570
10-03-07 05:45	wiz	Relationship added	related to 0006703