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• Is there a way to make Android tabs slide?

  - by Brian515

  Hi all, I'm new to Android development, and I was wondering if anyone knew either how to make Tabs slide, or how to get a similar effect without tabs. I have quite a few tabs in my application, and it does not look good on devices with smaller screens. Or maybe tabs are not what I am looking for. If you don't know what I'm talking about, I'd like to reproduce something similar to Photoshop.com Mobile's effects screen. I know this is possible. Thanks in advance!

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• I am designing a bus timetable using SQL. Each bus route has multiple stops, do I need a different t

  - by Henry

  I am trying to come up with the most efficient database as possible. My bus routes all have about 10 stops. The bus starts at number one until it reaches the 10th stop, then it comes back again. This cycle happens 3 times a day. I am really stuck as to how I can efficiently generate the times for the buses and where I should store the stops. If I put all the stops in one field and the times in another, the database won't be very dynamic. If I store all the stops one by one in a column and then the times in another column, there will be a lot of repeating happening further down as one stop has multiple times. Maybe I am missing something, I've only just started learning SQL and this is a task we have been set. Thanks in advance.

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• Multithreaded FTP upload. Is it possible?

  - by Arty

  I need to upload multiple files from directory to the server via FTP and SFTP. I've solved this task for SFTP with python, paramiko and threading. But I have problem with doing it for FTP. I tried to use ftplib for python, but it seems that it doesn't support threading and I upload all files one by one, which is very slow. I'm wondering is it even possible to do multithreading uploads with FTP protocol without creating separate connections/authorizations (it takes too long)? Solution can be on Python or PHP. Maybe CURL? Would be grateful for any ideas.

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• Zend without Database

  - by dbemerlin

  Hi, i googled for an hour now but maybe my Google-Fu is just too weak, i couldn't find a solution. I want to create an application that queries a service via JSON requests (all data and backend/business logic is stored in the service). With plain PHP it's simple enough since i just make a curl request, json_decode the result and get what i need. This already works quite well. A request might look like this: Call http://service-host/userlist with body: {"logintoken": "123456-1234-5678-901234"} Get Result: { "status": "Ok", "userlist":[ {"name": "foo", "id": 1}, {"name": "bar", "id": 2} ] } Now we want to get that into the Zend Framework since it's a hobby project and we want to learn about Zend. The problem is that all information i could find use a Database. Is there even a way to create a Zend Project that does not use a Database? And how can i write a model that represents the actions instead of objects and object-relations?

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• Most useful Python modules from the standard library?

  - by EOL

  I am teaching a graduate level Python class at the University of Paris, and the students need to be introduced to the standard library. I want to discuss with them about some of the most important standard modules. What modules do you think are absolute musts? Even though responses probably vary depending on your field (web programming, science, etc.), I feel that some modules are commonly needed: math, sys, re, os, os.path, logging,… and maybe: collections, struct,… What modules would you suggest I present, in a 1 or 2 hour slot?

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• AES acceleration for Java

  - by chris_l

  I want to encrypt/decrypt lots of small (2-10kB) pieces of data. The performance is ok for now: On a Core2Duo, I get about 90 MBytes/s AES256 (when using 2 threads). But I may need to improve that in the future - or at least reduce the impact on the CPU. Is it possible to use dedicated AES encryption hardware with Java (using JCE, or maybe a different API)? Would Java take advantage of special CPU features (SSE5?!), if I get a better CPU? Or are there faster JCE providers? (I tried SunJCE and BouncyCastle - no big difference.) Other possiblilities?

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• Subdomain mapping to another external subdomain

  - by Davorin

  I'm trying to map help.domain1.com to help.domain2.com. I've seen this on UserVoice. They let you map something.yourdomain.com to something.uservoice.com. On domain1.com I've set up a CNAME to help.domain2.com. It works fine but when I open help.domain1.com I get the content of domain2.com instead of help.domain2.com. After some experimenting I've realized that this is an expected behavior. So my question is what do I have to do on domain2.com (or maybe on domain1.com?) to have it show content of subdomain "help.domain2.com" when I navigate help.domain1.com? (I'm using Plesk and the OS is Windows Server 2003)

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• Can I use Lotus Notes to send mail ?

  - by Geo

  I have to code an app that at some point in time will have to send some reports using Lotus Notes. My questions are : Can I send mail through the Lotus Notes client, or something related to Lotus Notes ( a command line tool maybe? )? If so, where could I find information related to this? I would prefer not having to do it in C/C++, but if no other options' present, that would do. How can I find out the server's address? The GUI is not intuitive, and I can't find the server address. The server's located on another computer on the network.

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• Python: Repeat elements in a list comprehension?

  - by User

  I have the following list comprehension which returns a list of coordinate objects for each location. coordinate_list = [Coordinates(location.latitude, location.longitude) for location in locations] This works. Now suppose the location object has a number_of_times member. I want a list comprehension to generate n Coordinate objects where n is the number_of_times for the particular location. So if a location has number_of_times = 5 then the coordinates for that location will be repeated 5 times in the list. (Maybe this is a case for a for-loop but I'm curious if it can be done via list comprehensions)

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• What to see in India as a developer and student

  - by lasseespeholt

  Hi, I'm planning a trip to India around July-August. And I want to hear Indian developers or developers traveled to India if there are something interesting to see in India (around Bombay) for developers in general. Maybe a conference etc. I have looked at http://www.conferencealerts.com/computing.htm I have studied computer science in a year now but have been a spare time and independent developer for some years now. Furthermore, I have tried finding summer courses but that is properly too late now and computer science summer courses is hard to find in India. Best regards, Lasse Espeholt

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• Complicated conditional SQL query

  - by DevAno1

  I'm not even sure if it's possible but I need it for my Access database. So I have following db structure : Now I need to perform a query that takes category_id from my product and do the magic : - let's say product belongs to console (category_id is in table Console) - from console_types take type_id, where category_id == category_id - but if product belongs to console_game (category_id is in table console_game) - from console_game take game_cat_id, where category_id == category_id I'm not sure if mysql is capable of such thing. If not I'm really f&%ranked up. Maybe there is a way to split this into 2,3 separate queries ?

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• Creating Dynamic variables from json response

  - by c0mrade

  My JSON response looks like this : {"sample":[{"id":"2","name":"branch name"},{"id":"3","name":"branch name 2"}]} My function looks like this : function getJSONObjects(){ $.getJSON("http://localhost/api/branches", function(data){ $.each(data.sample, function(i,item){ var loc = "branch"; eval("var " + loc + item.id + "=123;"); alert(loc + item.id); }); }); } The idea is to create branch + id object so I can do something with it(create marker on a map), so I tried to assign it any value to see if this was working. I wanted both branch2 and branch3 to alert 123 so I have something to start with. But currently this alerts branch2 and branch3 instead of 123. I have little experience with creating dynamic variables/objects can someone tell me what I'm doing wrong or maybe another approach towards solving this?

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• Is it possible to shrink rt.jar with ProGuard?

  - by PatlaDJ

  Is there a procedure by which you can optimize/shrink/select/obfuscate only 'used by your app' classes/methods/fields from rt.jar provided by Sun by using some optimization software like ProGuard (or maybe other?). Then you would actually be able to minimize the download size of your application considerably and make it much more secure ? Right? Related questions: Do you know if Sun's "jigsaw project" which is waited to come out, is intended to automatically handle this particular issue? Did somebody manage yet to form an opinion about Avian java alternative? Please share it here. Thank you.

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• gnat programming studio auto fix issues

  - by Richard

  hi, I'm using GNAT Programming Studio to update some ada files. I have a style check, which for these old files produces literally thousands of warnings. Helpfully GPS has a little auto fix 'wrench' icon in the locations view, that's great but I don't want to go through and click the wrench ten thousand times. Is there a way to have it correct these errors automatically without me having to click each wrench? They are all right so I want to be changed automatically. I saw some documentation saying you could do it: http://www.adacore.com/wp-content/files/auto_update/gps-docs/Code-Fixing.html But I don't get the auto fix option when I right click. Maybe you need the pro version? I've tried everything I can think of. This would save hours of work, so it's really appreciated if someone could help on this. Thanks!

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• Optimizing MySQL statement with lot of count(row) an sum(row+row2)...

  - by Zombies

  I need to use InnoDB storage engine on a table with about 1mil or so records in it at any given time. It has records being inserted to it at a very fast rate, which are then dropped within a few days, maybe a week. The ping table has about a million rows, whereas the website table only about 10,000. My statement is this: select url from website ws, ping pi where ws.idproxy = pi.idproxy and pi.entrytime > curdate() - 3 and contentping+tcpping is not null group by url having sum(contentping+tcpping)/(count(*)-count(errortype)) < 500 and count(*) > 3 and count(errortype)/count(*) < .15 order by sum(contentping+tcpping)/(count(*)-count(errortype)) asc; I added an index on entrytime, yet no dice. Can anyone throw me a bone as to what I should consider to look into for basic optimization of this query. The result set is only like 200 rows, so I'm not getting killed there.

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• Browser gets blocked, workers to the rescue?

  - by tb_selleo

  Hello, I use JavaScript for rendering 20 tables of 100 rows each. The data for each table is provided by controller as JSON. Each table is split into section that have "totals" and have some other JavaScript logic code. Some totals are outside of the table itself. As a result JavaScript blocks browser for a couple of seconds (especially in IE6) :( I was consideting to use http://code.google.com/p/jsworker/, however Google Gears Workers (I guess workers in general) will not allow me to make changes to DOM at the worker code, and also it seems to me that I can not use jQuery inside jsworker worker code. (Maybe I am wrong here?). This issue seems to be fundamental to the JavaScript coding practice, can you share with me your thoughts how to approach it?

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• extracting only elements with text (or value)

  - by guy

  hay all. i am trying to transform html to xml meaning extracting all elements with text using this code is not working maybe some one has the answer ? System.Xml.Linq.XElement query1 = new System.Xml.Linq.XElement("RawHTMLData", from q in hDoc.Descendants("TABLE") where q.HasElements select new System.Xml.Linq.XElement("TABLE" + (++i).ToString(), from j in q.Elements("TR") where j.HasElements && j.Descendants("div") != null select new System.Xml.Linq.XElement("Row", from hh in j.Descendants("div") where tt => j.Descendants("div").Contains(hh.Value) select(TT(hh)))));

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• How would you build a "pixel perfect" GUI on Linux?

  - by splicer

  I'd like build a GUI where every single pixel is under my control (i.e. not using the standard widgets that something like GTK+ provides). Renoise is a good example of what I'm looking to produce. Is getting down to the Xlib or XCB level the best way to go, or is it possible to achieve this with higher level frameworks like GTK+ (maybe even PyGTK)? Should I be looking at Cairo for the drawing? I'd like to work in Python or Ruby if possible, but C is fine too. Thanks!

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• MCV/MVP Patterns and Applications that interface with Hardware (DAQ/PLC/etc)

  - by Ryan

  I've been reading a lot about the MCV and MVP patterns for use with UI and it seems like a really nice powerful way to handle user interfaces. I am - however - having a difficult time deciding how this could integrate into a system where data in the model is created from a Data Acquisition System or Serial/Ethernet devices. There is also the added step that 70% of application interaction is performed by a PLC instead of a live user. It seems that for apps that just read/write & manipulate information from a database this works great, but how does does hardware and automation fit into these patterns? Is it as simple as another controller (for lack of a better term) that interacts with hardware that manipulates data and writes to a model? Maybe I am over thinking this or thinking too simply, so any advice would be great. I'm not quite sure where I'm going with this, so if something doesn't make sense or I was too vague leave me a comment. Thanks!

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• Doctrine inserts when it should update

  - by Goran Juric

  I am trying to use do the most simple update query but Doctrine issues an INSERT statement instead of an UPDATE. $q = Doctrine_Query::create() ->from('Image i') ->where('id = ?'); $image = $q->fetchOne($articleId, Doctrine_Core::HYDRATE_RECORD); $image->copyright = "some text"; $image->save(); I have also tried using the example from the manual, but still a new record gets inserted: $userTable = Doctrine_Core::getTable('User'); $user = $userTable->find(2); if ($user !== false) { $user->username = 'Jack Daniels'; $user->save(); } edit: This example from the manual works: $user = new User(); $user->assignIdentifier(1); $user->username = 'jwage'; $user->save(); The funny thing is that I use this on another model and there it works OK. Maybe I have to fetch the whole array graph for this to work (I have another model in a one to many relationship)?

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• How do you set up your web server & document's html to correctly serve HTML5 documents?

  - by joedevon

  Maybe I'm an idiot but I don't quite get what goes in the header of my HTML to use XHTML w/ HTML5. Is this still good and we just add the HTML5 tags?: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html dir="ltr" lang="eng" xmlns="http://www.w3.org/1999/xhtml"> Or is it <!DOCTYPE html> or what? Then at A List Apart they say: If you do go with XHTML 5, remember that your server must deliver the documents with a MIME type of application/xhtml+xml or text/xml. Please explain to me as if I was stupid :) what that means in a practical sense? "deliver the documents"? Meaning html? What happens to php? What are the steps required to set up your web server this way?

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• How does Hibernate detect dirty state of an entity object?

  - by ???'Lenik

  Is it using some kind of byte codes modification to the original classes? Or, maybe Hibernate get the dirty state by compare the given object with previously persisted version? I'm having a problem with hashCode() and equals() methods for complicated objects. I feel it would be very slow to compute hash code if the object has collection members, and cyclic references are also a problem. If Hibernate won't use hashCode()/equals() to check the dirty state, I guess I should not use equals()/hashCode() for the entity object (not value object), but I'm also afraid if the same operator (==) is not enough. So, the questions are: How does Hibernate know if a property of an object is changed? Do you suggest to override the hashCode()/equals() methods for complicated objects? What if they contains cyclic references? And, also, Would hashCode()/equals() with only the id field be enough?

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• Displaying Current Pictures From A Camera

  - by Kap

  Hi Guys, I would like to develop an application that will receive pictures from a camera and maybe afterwards save it in a database. This is what i want to do: When the picture is taken it is send to the program immediately (or the program must read the current picture taken) then display it. I will take pictures of many people or things so anytime a picture is taken i want to see the current picture displayed in the program. I have googled if i can see an example application so that i know that it possible so that i can do mine from scratch. But couldn't find any so i am not sure if it is possible to do it in java. So guys am asking for guidelines how i can do it in java. I just need the steps then i will program everything myself. Thanks.

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• Inverse relationship of two variables

  - by Jam

  this one is maybe pretty stupid.. Or I am just exhausted or something, but I just cant seem to solve it.. Problem : two variables X and Y, value of Y is dependent on value of X. X can have values ranging from some value to some value (lets say from 0 to 250) and y can have different values (lets say from 0.1 to 1.0 or something..) - but it is inverse relatonship (what I mean is: if value of X is e.g. 250, then value of Y would be 0.1 and when X decreases up to 0, value of Y raises up to 1.0.. So how should I do it? lets say I have function: -- double computeValue (double X) { /computation/ return Y; } Also, is there some easy way to somehow make the scaling of the function not so linear? - For example when X raises, Y decreases slower at first but then more rapidly in the end.. (rly dont know how to say it but I hope you guys got it) Thanks in advance for this stupid question :/

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• storing multiple values as binary in one field

  - by Enghoej

  Hi I have a project where I need to store a large number of values. The data is a dataset holding 1024 2Byte Unsigned integer values. Now I store one value at one row together with a timestamp and a unik ID. This data is continously stored based on a time trigger. What I would like to do, is store all 1024 values in one field. So would it be possible to do some routine that stores all the 1024 2byte integer values in one field as binary. Maybe a blobfield. Thanks. Br. Enghoej

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