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• Automatically delete files after they expire

  - by Auxiliary

  I've got this idea for some time and I was wondering if anyone has seen such a feature/app in any operating system and if you haven't, what do you think about it. Where do you think I should begin? The idea is simple. I think we all have those files that are made and probably used for a few days and then are left on our disk and we never delete them or even check to see if we need them again. It'd be cool if you could right click on a file and click on "Expire in.. 3 days" for example. And the file gets deleted after 3 days. I have a great need for this and maybe some people will find it useful. I was thinking of writing a script and use the Nautilus Action project in GNOME for a start.

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• Connect divs with (non-straight) lines [migrated]

  - by Snailer

  I'd like to develop my site with a layout that looks somewhat like houses with connected plumbing, or multiple computers connected to a network. Basically, the will be boxes floating in space, with lines connecting some of the boxes. I'd like these lines to have some turns in them as well (just simple 90 degree corners) rather than just a straight line. My question is what is the best way to achieve this, and perhaps a small example. My thoughts were to use: PHP and CSS: I could create a background grid and then, with some complicated algorithms, draw paths using the grid's borders. This would be more dynamic, but I'm not sure I can plot the math all by myself. just CSS: Perhaps this is as simple as making some pre-drawn lines like L-shapes and T-junctions, then just placing and scaling them. But I don't believe there's a way to scale an image by slicing it.. so the line width would be scaled and thus each image would look different. Any thoughts?

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• Temporary animations

  - by Max

  I've been trying to find a tutorial on how to best make animations in Android. I already have some animations for my enemies and my character that are controlled by rectangles and changing rectangleframe between updates using a picture like this: When I'm shooting my enemies they lose HP, and when their HP == 0 they get removed. aslong as im using an arrayList (which I do for all enemies and bullets) I'm fine, since I can just use list.remove(i). But when I'm on a boss-level and the Boss's HP == 0, I want to remove him and play an animation of an explosion of stars before the "End-screen". Is there a preferred way to do temporary animations like this? If you can give me an example or redirect me to a tutorial, I'd be really grateful!

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• Why does Linq to Entity Sum return null when the result set is empty?

  - by Hannele

  There are quite a few questions on Stack Overflow about the Linq to Entity / Linq to SQL Sum extension method, about how it returns null when the result set is empty: 1, 2, 3, 4, 5, 6, 7, and many more, as well as a blog post discussing the issue here. I feel it is an inconsistency in the Linq implementation. I am assuming at this point that it is not a bug, but is more or less working as designed. I understand that there are workarounds (for example, casting the field to a nullable type, so you can coalesce with ??), and I also understand that for the underlying SQL, a NULL result is expected for an empty result set. But because the result of the Sum extension for non-nullable types is also non-nullable, why does the Linq to SQL / Linq to Entity Sum behave this way?

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• What is the preferred Internet media type of a RESTful POST request?

  - by rdasxy

  Is there a preferred/recommended Internet Media Type for RESTful POST requests? For example, if I want to add a new user, should I send the data as a URL encoded string like: name=Foo&otherData=Bar or does REST recommend I send the data as whatever format the response is going to be sent as (e.g. JSON/XML)? <user> <name>Foo</name> <other-data>Bar</other-data> </user>

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• Will Google follow HTML refresh?

  - by yasar11732

  I want to move my current Tumblr blog to static HTML blog. Currently I am using a custom domain, I am planning on doing the move when Google sees domain name change. I am considering two options: Buying a hosting service Using GitHub pages Buying a hosting service would probably mean I am going to pay for lots of things that I don't need like PHP, MySQL, e-mail service etc. On the other hand, if I use GitHub pages, I can't use .htaccess file to make 301 redirects. I want to change my URL structure and this is important to me. I was wondering if I use: <meta http-equiv=refresh content="0; url=http://example.com/newurl" /> Would Google see it as 301 redirect, so that I won't use my search engine value?

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• C# code not take changes on server in asp.net MVC 4 ?

  - by Anirudha

  Originally posted on: http://geekswithblogs.net/anirugu/archive/2013/06/28/c-code-not-take-changes-on-server-in-asp.net-mvc.aspxToday I got a problem that When I make changes to My c# code and put them on FTP. The site still don’t take changes. I check the filesize of compile dll of my project in bin. Yes, File is uploaded but it’s not what my new code do.   If you ran into this problem Then I suggest you to delete old .pdb and .dll file of your project. for example your project namespace is xyz. delete the xyz.pdb and xyz.dll now upload your dll from bin to project bin on server. it will work

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• PHP class data implementation

  - by Bakanyaka

  I'm studying OOP PHP and have watched two tutorials that implement user login\registration system as an example. But implementation varies. Which way will be more correct one to work with data such as this? Load all data retrieved from database as array into a property called something like _data on class creation and further methods operate with this property Create separate properties for each field retrieved from database, on class creation load all data fields into respective properties and operate with that properties separately? Then let's say I want to create a method that returns a list of all users with their data. Which way is better? Method that returns just an array of userdata like this: Array([0]=>array([id] => 1, [username] => 'John', ...), [1]=>array([id] => 2, [username] => 'Jack', ...), ...) Method that creates a new instance of it's class for each user and returns an array of objects

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• update(100) behaves slightly different than 10 times update(10) - is that a problem? [on hold]

  - by futlib

  While looking into some test failures, I've identified an curious issue with my update logic. This: game.update(100); Behaves slightly different from: for (int i = 0; i < 10; i++) game.update(10); The concrete example here is a rotating entity. It rotates by exactly 360 degrees in the first case, but only by about 352 in the second. This leads to slight variations in how things move, depending on the frame rate. Not enough to be noticeable in practice, but I did notice it when writing tests. Now my question is: Should this be fully deterministic, i.e. the outcome of update(1) * n should equal update(n) exactly? Or is it normal to have some variance and I should make my test assertions more generous?

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• Repainting a window with a new scene with winapi (beginner question)

  - by user90760

  I'm following theForger's win32 API tutorial in order to create a GUI for a project. I've successfully made simple, one window applications, but I can't figure out how to repaint an entire window with new information. As an example: I have five buttons corresponding to five colors on the main application window. When a user clicks a color button, the entire window is repainted such that: 1. all five buttons are removed and a new "back" button is replaced, 2. the background is colored the color that was picked. I'm able to change the background color by trapping the button pressed message in my wndproc, but I can't figure out how to change the entire window with a new "scene" (removing the color buttons and adding a back button). This seems like a trivial task, but I can't find a solution in tutorials. Do I need to declare a new windows class with the back button and then have my button trap create a window of this class?

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• Are my Google Analytics ( 2 domains 1 site) duplicated or unique?

  - by MarcDJay

  We have recently built a new website with a new domain to replace an old website, and on the advice of our IT guys and web dev team have pointed both oldaddress.com's & newaddress.com's a records to the new website. Now, they both share the same google analytics code (UA-12345-1) and as such we have two entries in the Google Analytics dashboard. The problem is I'm still fairly novice with GA and as the reports seem VERY similar (~25k pageviews for each domain), are these figures exclusively for that domain? For example: oldaddress.com 25,400 pageviews newaddress.com 25,600 pageviews Does this mean that in total for this website I have 51,000 pageviews. Hope this is clear enough but let me know if anything needs clarifying. Thanks.

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• What reference point/ tutorial could I use to help me make a "Ball rolling" game in flash?

  - by user1798964

  I am a complete newbie to programming, only took high school Computer science so I kind of know what im doing, I just want to know how I can make a ball rolling game that I want to make, could anyone show me an example of a good "ball rolling game" that has good physics and everything, I have tried to use Box2D for the physics portion of the game, but I found that using that is just code and I can't figure out how to make the graphics and details of the world I want to make in my game, all I would like to do would have a game that has the collision detection and physics of box2d only apply to one ball in it and use the left and right keys to move it. sorry if I am too unclear, if anyone could show a tutorial or something to me on how to make a proper "Ball rolling" game that has good physics that would be appreciated, thank you for taking the time to read this

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• Creating Java EE Projects with Maven

  - by M.C.

  I've been developing Java EE web apps with Eclipse for about a year. My employer doesn't use Maven, but the more I read about it, the more convinced I am that Maven + Hudson will be greatly beneficial for us. First, though, I have to become comfortable with those technologies in my spare time, so that I can create a proof-of-concept. Right now, I'm still a Maven newbie. Is there a set of best practices for creating Java EE web apps with Maven? For example, I could create a project with a basic archetype and then add all of the necessary JARs by putting dependencies in the POM for the servlet container, EJB, EclipseLink, etc... That might work, but it might not be the best way to do it. I'd greatly appreciate any guidance that you could provide on this topic.

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• Where can I find a collection of photorealistic scenes? [on hold]

  - by emchristiansen

  Where can I find a collection of 10-100 3D scenes with photorealistic levels of detail? For example, the scene rendered here contains photorealistic detail. Note I want the underlying object models, textures, etc, not final renderings. I'll be using these scenes to test a computer vision idea. BTW, this is a reposting of this question. I wasn't able to find a Stack Exchange site that is perfectly suited to the question, but as this is a modeling and rendering question, I'm hoping it is a good enough match for the venue.

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• Any risks in forwarding incoming requests to my computer? [closed]

  - by pimvdb

  I just installed EasyPHP, which is basically a combination of Apache, PHP and MySQL for dummies. I'd like to make my router forward incoming requests to my computer, so that everyone on the Internet could fetch data from my computer using the Apache server. However, I was wondering if there are many risks in this. For example: Could someone get full control of my computer this way? Is my computer more exposed to secutiry risks? Could I (practically) get DDOSed? The last question might be exaggerating, but I'm just curious. Thanks.

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• How to create a map-like (clouds) texture [duplicate]

  - by user16547

  This question already has an answer here: How do you generate tileable Perlin noise? 9 answers If you place a map of the world on a sphere, it will look like the image is continuous. Basically the left end of the image is sort of a continuation of the right end. You won't be able to see any cuts. I'm trying to create a clouds texture to add to my planet such that it will seem it has clouds. I managed to create the clouds in GIMP, however, I can't figure out how to make sure the left end of my image is a smooth continuation of the right end. For example if you were to map the below image to your sphere (I removed transparency to make it clearer), there would be a very obvious transition from the right end of the image back to the left end on your sphere. How would I create a texture such that I get rid of that? Sorry for my lack of terminology.

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• fault tolerant uploading tool

  - by andersonbd1

  I'm setting up a wordpress site for a friend who has some somewhat large audio files (150M)... He's on a bad connection and I'd guess it'll take him a while to upload those files with the normal wordpress way. I'm looking for a tool that I can install on the server that allows uploads and is also fault tolerant... for example if you loses his connection, or power, or whatever it'll pick up where it left off. I realize web technologies probably don't do that, but perhaps flash or something? Any ideas?

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• How Microsoft copy the result from user for Bing.

  - by anirudha

  from some days before i read about the problem google show with another search engine Bing who come from Microsoft. well google show that bing copycat and Microsoft show that they not. i am not known matter much more but predict something that maybe true if google are right in what they tell. if MS really copy the search from User then they use Live service who used by all user who use the internet or on the internet. see the snapshot i have in this snapshot they tell that Help improved search results,internet safety and Microsoft software by allowing Microsoft to collect and retain information about your system, the searches you do and the websites you visit. Microsoft will not use this information to personally identify or contact you. Learn more so why they need the research on what user search on internet even the not contact but user their is no reason as well as bing. well their is a example who maybe possible they  use for bing.

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• Port flash game to native android

  - by wirate

  Alright here is the problem: the creators of a quite popular flash-based game have asked me to port their game to Android. They are not interested in any other platforms so we don't need to be worrying about iOS or PC. They want the best performance on just Android (I guess that's the point of porting a flash-based game. They could have just went with it) They found Unity 'slow'. How would the performance (on android) of other engines compare? Are they expecting too much i.e. finding Unity slow? I am in favor of Unity since development is a little easier with more things being visual (I am not experienced as you might have guessed). This would be an example of the type of game I am to port Thanks!

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• C++ developer looks for book(s) about Android apps & widgets (& services etc.) [on hold]

  - by Valmond

  I'm senior C++ developer, I have also programmed professionally j2me some years. I'd like to make some apps and widgets for Android and I'd like to read up a bit on this new java stuff Android is using. I have (of course) checked out some tutorials and so but it seems I miss the basics, I can compile some stuff (read: examples) in eclipse but I just don't know how to, for example, add a service or what an 'intent' is, why my widget isn't called but successfully launches the main app when clicked and so on. So, what is a really good book for someone that is a developer but mostly need the hard facts about developing something specific like Android apps & widgets? Thanks a bunch!

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• Make the player run onto stairs smoothly

  - by misiMe

  I have a 2D Platform game, where the player Always runs to the right, but the terrain isn't Always horizontal. Example: I implemented a bounding-box collision system that just checks for intersections with player box and the other blocks, to stop player from running if you encounter a big block, so that you have to jump, but when I put stairs, I want him to run smoothly just like he is on the horizontal ground. With the collision system you have to jump the stairs in order to pass them! I thought about generating a line between the edges of the stairs, and imposing the player movement on that line... What do you think? Is there something more clever to do?

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• Microsoft DevDays 2010 Day #3 with Open XML

  I've been running at a fast pace for the past few days, so I'm going to add a few posts here to catch up. Day 3 of the DevDays event in the Netherlands was a success. I delivered a session on "Open XML Solution Building With Word and Excel Services". Huge thanks to Zeyad Rajabi for pulling together some of the server-side demos I showed. Among the 10 or so demos I showed I showed people how to connect to a datasource and start pumping data into a document. For example, what about connecting to a...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Print Screen key doesn't work if a drop-down menu is active

  - by wim

  On 11.10, I don't get a screengrab when pressing the Print Screen button on my keyboard if I have activated a drop down menu. For example, in nautilus, I can click the File menu and press the print screen button, nothing happens. Deactivating the drop down menu and all other things being equal, it works. Is that normal? Often when using this thing I'm actually needing to show some of those menu options. Currently I use the workaround to grab after a delay of a few seconds, but I'm used to the print screen button working no matter what's in focus and would prefer it that way.

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• Do I need to do an "apt-get update" after adding a PPA?

  - by Sat93

  After adding a new ppa to the repository, is it necessary to update the whole database? By "whole database" I mean is it necessary to update index's of each and every packege? If it's not necessary, then how can I update only that specific package whose ppa I have just added into the repository. For example, if I add an ppa by typing the following in terminal, sudo add-apt-repository ppa:tiheum/equinox then we normally run the following command after it, sudo apt-get update But how can I update the only package which is associated with the above ppa, instead of updating the whole database.

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• What personal milestones can you use to measure growth in your programming abilities?

  - by GWLlosa

  How can you determine objectively, over time, that you are getting any better at producing code? For example, I may sit here and feel that "I know now, and I use now, so I must be better." But this does not account for my own bias, or the fact that I may be getting better at a slower rate than intended, or I may actually suck at and not realize it. What methods are available for one to objectively rate one's own abilities? What about to objectively compare them to their peer groups?

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