On 04/04/2011 05:35 PM, Ecaterina Moraru (Valica) wrote: > Hi, > > On Sat, Apr 2, 2011 at 14:03, shweta agrawal<[email protected]> wrote: > >> Hi, >> >> I have checked out the HTML 5 specifications for geo-location api, file >> uploading api and canvas container. >> >> At present, all the attachments are stored in database irrespective of >> their nature (the old photo album also uses db to store images). I browsed >> to find out which is better for storing image files - database or file >> system and found that most of the posts favored filesystem (in case of large >> number of images). I need your suggestion regarding which one is better in >> xwiki's context. In case of using filesystem for storing image files, >> migration of older version photo albums will be complicated as image files >> will need to be imported from database to file system. >> > > Right now from what I know attachments are stored in the database. Caleb is > working on a new storage that will use the filesystem. So IMO you don't have > to worry about this aspect and also it will not be very relevant for this > project (you will only have to use the storage, not implement it). See > http://markmail.org/thread/pl7v4sew2ujksrvv > > >> >> Secondly, most of the online photo album application (flickr, picasa web >> album, facebook) uses image compression for rendering images fastly on >> slower networks, so do we also intend to use some compression algorithm and >> optimize the image files for display on web. (xwiki can have something of >> this sort that is if image size is more than some threshold value (say 1 Mb >> or 512 kb) then it can be stored as a compressed image). I haven't checked >> out which algorithms are used and does there exist any library or API for >> image compression, so can't say how much time it will take to implement. >> >
> I think we already have some image compression on the server side. Marius > can give more information about this. See > http://markmail.org/thread/kbazwdlgmrlsllcv What we have is just the ability to resize images on the server side to reduce the network throughput. Hope this helps, Marius > > >> >> what about sharing photo album only with a specific group not all users and >> also having manipulating rights to some users only (unlike the old photo >> album application, any registered user can add or delete photos created by >> some other user)? >> >> This won't be a problem either. If the application is located at space > level and let's say albums are identified at page level, then you can easily > play with the rights system and give permissions just to a group or user, > etc. See http://platform.xwiki.org/xwiki/bin/view/Features/RightsManagement > > Thanks, > Caty > > >> Thanks >> Shweta Agrawal >> >> >> On Tue, Mar 29, 2011 at 2:35 AM, Ecaterina Moraru (Valica)< >> [email protected]> wrote: >> >>> >>> >>> On Mon, Mar 28, 2011 at 16:38, shweta agrawal<[email protected]>wrote: >>> >>>> Hi, >>>> >>>> I am Shweta Agrawal, final year computer science student at IIT Roorkee, >>>> India. I want to apply for GSoC this year and am interested in working on >>>> Photo Album Application. I have four year experience in web development >>>> and >>>> have good understanding of HTML, CSS, Php, python and Javascript. I have >>>> worked on creating user interfaces for a couple of websites and developed >>>> applications like online music player (similar to grooveshark), online >>>> notice board etc for my Institute's intranet. >>>> >>>> As far as I understand the project, it's aimed at developing an >>>> application >>>> where users can >>>> >>>> - upload the photos (one by one or zip files or folders) with >>>> information like date, caption, location etc.- this info can be >>>> extracted by >>>> reading exif information. *additional* - multiple file selection and >>>> upload, drag and drop functionality (supported by HTML 5 compliant >>>> browsers). ** *doubt* that do we intend to create a default album for >>>> all >>>> the images uploaded/attached by user on any of the pages i.e. not only >>>> the >>>> images that are uploaded for some album. It will provide user an easy >>>> way to >>>> manipulate and browse through all uploaded image files. >>>> >>> >>> the intent is to have albums. This means the user specifies the desired >>> photos he wants to add to his album. >>> About your idea: to have an album with all the images uploaded by user: >>> this is already accessible if you go to Main/AllDocs?view=attachments and >>> filter the user. >>> >>> >>>> - create albums and add information like title, caption, description >>>> and >>>> location. *doubt* - will there be any limit on maximum number of >>>> photographs in an album? >>>> >>> >>> we don't have any limit on the number of attachments we add to a page, so >>> we shouldn't have a limit here either. >>> >>> >>>> - browse through the uploaded photographs (available in browsers not >>>> >>>> having javascript - It can be done using css3). >>>> >>> >>> we recently have something like >>> http://extensions.xwiki.org/xwiki/bin/view/Extension/Gallery+Macro >>> and >>> >>> http://extensions.xwiki.org/xwiki/bin/view/Extension/Attachment+Selector+Macro >>> to give you some example of extensions that handle attachment viewers. >>> >>> >>>> - view as thumbnails and slideshow (with adjustable timer and with >>>> >>>> manual browsing). >>>> >>>> >>>> - migration tool from the old version photo albums. *doubt* - what >>>> does >>>> old version photo albums refer to? >>>> >>> >>> This is the very old Photo album application that we want to replace. >>> >>> http://extensions.xwiki.org/xwiki/bin/view/Extension/Photo+Album+Application >>> >>> >>>> - ability to tag and associate comments with attachments. *doubt* - >>>> does >>>> >>>> attachments here refers to image files only or any type of files. >>>> >>> >>> for the purpose of this project refers to images, but this should be >>> extensible so we could comment on any type of files. >>> >>> >>>> >>>> I have browsed through the code of older photo album application. I need >>>> guidance that is how should I start working on this application? I am >>>> thinking about starting with uploading part. >>>> >>> >>> Learn a bit XWiki structure and the way applications and extensions are >>> done, integrated and reused. >>> You can find lots of applications at >>> http://extensions.xwiki.org/xwiki/bin/view/Main/ >>> You can play with them, see also the source code, etc. >>> >>> The specifications for this project are very oriented towards the HTML5 >>> standard so you should check that out too. >>> >>> Thanks, >>> Caty >>> >>> >>>> >>>> Looking forward to your feedback. >>>> >>>> Regards >>>> Shweta Agrawal >>>> B.Tech IV YR CSE >>>> IIT Roorkee >>>> _______________________________________________ >>>> devs mailing list >>>> [email protected] >>>> http://lists.xwiki.org/mailman/listinfo/devs >>>> >>> >>> >> > _______________________________________________ > devs mailing list > [email protected] > http://lists.xwiki.org/mailman/listinfo/devs _______________________________________________ devs mailing list [email protected] http://lists.xwiki.org/mailman/listinfo/devs
