On 22 August 2012 02:11, Levente Uzonyi <leves at elte.hu> wrote:
> On Wed, 22 Aug 2012, Igor Stasenko wrote:
>
>> On 22 August 2012 00:04, Levente Uzonyi <leves at elte.hu> wrote:
>>>
>>> On Tue, 21 Aug 2012, Igor Stasenko wrote:
>>>
>>>> On 21 August 2012 23:20, dimitris chloupis <thekilon at yahoo.co.uk> wrote:
>>>>>
>>>>>
>>>>> Ah thank you , I had version 1 and now version 4 is installed together
>>>>> with
>>>>> all dependencies. Any idea how I use NB-help ?
>>>>>
>>>>
>>>> i don't know how you can do it in squeak image, in pharo image just
>>>> open help browser
>>>
>>>
>>>
>>> It uses too many "pharoisms", so it won't work in Squeak out of the box:
>>> - Gofer
>>> - LogicalFont
>>> - StandardFonts
>>> - pragma-based "registration" for HelpSystem
>>>
>>> The first can be loaded, the lines containing the next two can be
>>> replaced
>>> with "TextStyle defaultFont" and then you can open the HelpBrowser with:
>>> HelpBrowser openOn: NBHelp asHelpTopic.
>>>
>>> Btw, green text for source code doesn't look very nice and it would be
>>> better to use the Metacello API to load PP.
>>>
>>
>> I never tried it on squeak, so sure thing it may not work.
>
>
> Sure.
>
>
>> I have two questions:
>> - why LogicalFont considered pharoism?
>> (StandardFonts is, but LogicalFont?)
>
>
> Because it doesn't exist in Squeak.
>

Ah, ok i checked.. it is part of freetype.
This is strange, i always assumed LogicalFont was always in base fonts
package :)

I was using
TextStyle defaultFont before logical font:

headingStyle: level
	| size |
	
	size := self defaultFont height.
	size := size *
	( #(
		2.0
		1.5
		1.4
		1.25
		1.0
	) at: level ).
	
	^ TextFontReference toFont: (
	
		TextStyle default fontOfSize: size
	)
		
The problem is that #fontOfSize using stupid fontArray which works
well for strike fonts (since you have limited set of sizes for font),
while for truetype fonts its size is always =1
and it always answers the font of very same size, depite that truetype
fonts can be sized to any size almost effortlessly.. so this makes
headings look like regular text :(
Maybe it is pharo bug needs to be fixed..
But the font API is very obscure and unfriendly..


-- 
Best regards,
Igor Stasenko.