Thank you, I appreciate the info. That’s why I asked on the mailing list.
Sent from my iPhone > On 9 Oct 2017, at 10:26 pm, Armin Le Grand <[email protected]> wrote: > > Hi Chris, > > please don't. Have you seen that it's derived from B3DTuple and thus is using > three doubles? This makes it way bigger than the current one. It is more a > interface class for ghaving the color ranges in abstract [0.0..1.0] range, so > independnent from a device's color resolution. Is is in that form not > seiously usable e.g. for spawnig Bitmaps. > > For adding alpha it would be better to derive a class adding it, but was not > yet needed -see e.g. drawinglayer::attribute::LineAttribute and others. > > It is *not* always feasible to have RGB and A together - basic Canvas(es) > never have Alpha (seen as last target for paint), Bitmap/in-between targets > have. > > Just my 2ct, > Armin > > >> Am 08.10.2017 um 14:22 schrieb Chris Sherlock: >> Just a quick query: is there any reason why basegfx::BColor doesn’t store >> the alpha value? >> >> I was thinking it would be great to migrate from tools::Color to >> basegfx::BColor, but I genuinely don’t think this is really possible without >> storing the alpha channel. >> >> Also, I noticed a decent gerrit patch by Noel that removes yet another >> variant of Color in cppcanvas: >> >> https://gerrit.libreoffice.org/#/c/43240/ >> >> It would be great to have literally only one implementation of Color :-) >> >> Also, I proposed a Color modifier earlier to do alpha blending: >> >> https://gerrit.libreoffice.org/#/c/43223/ >> >> Feedback is that BColorModifer_interpolate can do this already, so it’s not >> like we don’t have the infrastructure to do this... >> >> Thoughts? >> >> Chris >> >> Sent from my iPhone >> >> >> _______________________________________________ >> LibreOffice mailing list >> [email protected] >> https://lists.freedesktop.org/mailman/listinfo/libreoffice > > -- > -- > ALG (PGP Key: EE1C 4B3F E751 D8BC C485 DEC1 3C59 F953 D81C F4A2)
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