Re: [Mlt-devel] MLT font property

[Dan D. <da...@de...>]

On Sun, Oct 16, 2011 at 8:08 PM, Brian Matherly <pez...@ya...> wrote:
> Dan,
>
>>>>In my opinion, the bare minimum would be:
>>
>>>>* family
>>>>* size
>>>>* style (only options are "italic" and "normal")
>>>>* weight (only options are "bold" and "normal")
>>>>
>>>
>>>I am ok with this subset for now.
>>>
>>>>Do you want any help with this? I'd be happy to help (or just do it for you). Just let me know what properties you want and I can make it happen.
>>>
>>>I am busy on MLT-related stuff despite the way it may appear. Some of that activity will be revealed soon. :-) I would really appreciate you doing this since you have been so active in this area lately.
>>
>>I'm on it. I'll implement the subset listed above and convert dynamictext to the new properties. At that point, we can re-evaluate.
>
>
> Here you go:
> https://github.com/pez4brian/mlt/commit/0cf6b99f5f0300111a05a6e2717b9526c5be3edd
>
> Here are some discussion points:
>
> * There was already an undocumented "size" property. It uses absolute size (pixels) rather than points. I left it that way because, in my opinion, when dealing with video, "points" have no meaning - unless you know the physical size of the display the viewer will be using. In my tests, there is a minuscule difference in the size of the text you get when using pixels vs points. I don't think anyone will notice. Additionally, some of the data_show property files already used the size property. If anyone uses the deprecated "font" property, the absolute size property will be ignored.
>
> * There was already a "weight" property and it takes a range of numbers. So I left it.
>
> * family, size and style will be ignored if anyone uses the deprecated "font" property.
>
> * For anyone who did not specify "font" previously, the defaults for "family" and "size" will make the text the same size as before.
>
> Let me know if you want anything changed.

I notice both font and family use the same
pango_font_description_from_string(). What do you think about not
adding family and just use font? Then, stop encouraging usage of the
font as a combo property in the examples and yml? (As a side benefit
people authoring stuff by hand will find easier to remember font
rather than family regardless of which is more correct. ;-)

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