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• Novel fitness measure for evolutionary image matching simulation

  - by Nick Johnson

  I'm sure many people have already seen demos of using genetic algorithms to generate an image that matches a sample image. You start off with noise, and gradually it comes to resemble the target image more and more closely, until you have a more-or-less exact duplicate. All of the examples I've seen, however, use a fairly straightforward pixel-by-pixel comparison, resulting in a fairly predictable 'fade in' of the final image. What I'm looking for is something more novel: A fitness measure that comes closer to what we see as 'similar' than the naive approach. I don't have a specific result in mind - I'm just looking for something more 'interesting' than the default. Suggestions?

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• i18n and l10n web guidelines

  - by Konstantin Petrukhnov

  Is there any standards/guidelines/good practices for making websites with support of different content and UI? I'm interesting in articles/tutorials, that cover this topics. E.g. there going to be website for multiple countries. And user should have possibility to select UI and content languages separately. I assume that not all content will be translated, so there should be some mechanism for showing "default language" content for specific page. But again, should this "default" be per site, or per country? E.g. in some countries (Belgium, Finland) there are several official languages. If one language is unavailable, should default be second one, or English? Another example: many people prefer English UI (no mater of their origin), but want local scales (inches, meters) and local services. I don't care much about programing languages now, just want to understand what users are expected, what should be scope, and what are good practices.

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• Free static checker for C99 code

  - by detly

  I am looking for a free static checker for C99 code (including GCC extensions) with the ability to explicitly say "these preprocessor macros are always defined." I need that last part because I am compiling embedded code for a single target processor. The compiler (Microchip's C32, GCC based) sets a macro based on the selected processor, which is then used in the PIC32 header files to select a processor-specific header file to include. cppcheck therefore fails because it detects the 30 different #ifdefs used to select one of the many possible PIC32 processors, tries to analyse all possible combinations of these plus all other #defines, and fails. For example, if splint could process C99 code, I would use splint -D__PIC32_FEATURE_SET__=460 -D__32MX460F512L__ \ -D__LANGUAGE_C__ -I/path/to/my/includes source.c

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• Proving that a function f(n) belongs to a Big-Theta(g(n))

  - by PLS

  Its a exercise that ask to indicate the class Big-Theta(g(n)) the functions belongs to and to prove the assertion. In this case f(n) = (n^2+1)^10 By definition f(n) E Big-Theta(g(n)) <= c1*g(n) < f(n) < c2*g(n), where c1 and c2 are two constants. I know that for this specific f(n) the Big-Theta is g(n^20) but I don't know who to prove it properly. I guess I need to manipulate this inequality but I don't know how

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• Is there a way to generate a gitignore from a makefile?

  - by Kinopiko

  I have a lot of files such as JavaScript, HTML, and even C and C header (.h) files which are automatically generated, so they appear in the makefile like myfile.js: myfile.js.tmpl etc. I want all of these target files to be ignored by the version control system. I am using git but this question is not git-specific. Is there a utility or a trick which exists to make the ignore file (like .gitignore) from a makefile? (If there isn't such a facility, I can make a script to create one, but before I do that I am just checking I haven't missed some obvious tool or method.)

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• How can I set partial text color in JTextArea

  - by ComputerJy

  I want to set color for specific lines in the text area. What I've found so far, was the following // Declarations private final DefaultStyledDocument document; private final MutableAttributeSet homeAttributeSet; private final MutableAttributeSet awayAttributeSet; // Usage in the form constructor jTextAreaLog.setDocument(document); homeAttributeSet = new SimpleAttributeSet(); StyleConstants.setForeground(homeAttributeSet, Color.blue); StyleConstants.setItalic(homeAttributeSet, true); awayAttributeSet = new SimpleAttributeSet(); StyleConstants.setForeground(awayAttributeSet, Color.red); // Setting the style of the last line final int start = jTextAreaLog.getLineStartOffset(jTextAreaLog.getLineCount() - 2); final int length = jTextAreaLog.getLineEndOffset(jTextAreaLog.getLineCount() - 1) - start; document.setCharacterAttributes(start, length, awayAttributeSet, true); But this is not working. What am I doing wrong?

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• VS2010 Intellisense on class files

  - by rlb.usa

  I have a Web Application Project that I'm working on. My solution looks like this : ./MyProject/ ./MyProject/dataobjects.cs <- no intellisense ./MyProject/sqlquerying.cs <- no intellisense ./MyProject/default.aspx <- intellisense works here ./MyProject/default.aspx.cs <- intellisense works here ./MyProject/mypage.aspx <- intellisense works here ./MyProject/mypage.aspx.cs <- intellisense works here Visual Studio 2010 doesn't give me any intellisense options when I work on non-code-behind files like Business Logic Layers and Data Logic Layers . In VS2008, I placed these files in the App_Code folder and intellisense worked fine. What can I do? Is there a specific folder I need to put these files in to get intellisense?

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• Best practices for managing limited client licenses/login

  - by MicSim

  I have a multi-user software solution (containing different applications, i.e. EXEs) that should allow only a limited number of concurrent users. It's designed to run in an intranet. I dont have a really good, satisfactory solution to the problem of counting the client licenses yet. The key requirements are: Multiple instances (starts) of the same application (= process) should count as only one client licence Starting different applications of the software solution should also count as only one (the same) client licence Application crash should not lead to orphaned used licences The above should work also for Terminal Server environments (all clients same IP, but different install folders) I'm looking for estabilished patterns, solutions, tips for managing used client licenses. Specific hints for the above sitaution are also welcome.

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• Using malloc/free in Objective-C object

  - by Itamar Katz

  I have a class AudioManager with a member of type AudioBufferList *. (This is a struct declared in the CoreAudio framework). Since AudioBufferList is not a NSObject, I cannot retain it, so I have to alloc/free it (correct me if I'm wrong). My question is, where is the 'right' place to free it? Currently I am doing it in the dealloc method of AudioManager. If I understand correctly, this method is invoked automatically once the release message is sent to the instance of AudioManager --- is that true? Is there any other recommended practice regarding using alloc/free on non-objects members of Objective-C objects? Edit: From Apples documentation: Subclasses must implement their own versions of dealloc to allow the release of any additional memory consumed by the object—such as dynamically allocated storage for data or object instance variables owned by the deallocated object. After performing the class-specific deallocation, the subclass method should incorporate superclass versions of dealloc through a message to super: Which makes things a little bit clearer - but more insights are appreciated.

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• smart reversing of compressed javascript with obscured variable & function names ?

  - by Jerome WAGNER

  Hello, I want to know if there exists a tool to help in reversing a compressed javascript that has obscure variable names. I am not looking for a pretty-printing beautifier, but for a tool that actually know a to change & propagate variable name choices. Let me be more specific : - some of the functions belong to the 'public' API and i want to impose readable argument names in their prototypes - there are intermediary variables for document, window and other browser idioms I would like to give this knowledge to the tool and then let it create another javascript where the knowledge would have been correctly propagated. thanks Jerome Wagner

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• To subclass or not to subclass

  - by poulenc

  I have three objects; Action, Issue and Risk. These all contain a nunber of common variables/attributes (for example: Description, title, Due date, Raised by etc.) and some specific fields (risk has probability). The question is: Should I create 3 separate classes Action, Risk and Issue each containing the repeat fields. Create a parent class "Abstract_Item" containing these fields and operations on them and then have Action, Risk and Issue subclass Abstract_Item. This would adhere to DRY principal.

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• Android and Protocol Buffers

  - by spaceboy2000

  I am writing an Android application that would both store data and communicate with a server using protocol buffers. However, the stock implementation of protocol buffers compiled with the LITE flag (in both the JAR library and the generated .java files) has an overhead of ~30 KB, where the program itself is only ~30 KB. In other words, protocol buffers doubled the program size. Searching online, I found a reference to an Android specific implementation. Unfortunately, there seems to be no documentation for it, and the code generated from the standard .proto file is incompatible with it. Has anyone used it? How do I generate code from a .proto file for this implementation? Are there any other lightweight alternatives?

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• Handling update errors in multiple records in the TClientDataset's ReconcileError method

  - by Fabio Gomes

  I'm trying to use the ReconcileError event to allow the user to correct the data after an update error which occurred in a specific record among others. Example: I have a dataset with one field and 3 records, this field have a unique constraint on the database, then I change one value to conflict when it reaches the database, then I call ApplyUpdates on the Dataset. This will generate an error (violation of unique constraint) in the provider and abort the applyupdates process, returning raAbort in the Action var of the ReconcileError method. In the ReconcileError method I tryied to use: Action := HandleReconcileError(aDataSet, UpdateKind, E); ** EDIT ** After debugging and dumping the DataSet records which were returned from the server, I noticed that there are 2 records in this Dataset, the first is the Old record and the second have all the changes I made to the first record. I'm a bit confused, will I always get this DataSet with 2 records? I thought that it should have only one record with the Old/New values. Thanks.

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• iPad application submission with iPhone SDK beta 5 rejected

  - by FredM

  I try to send an specific iPad Application to iTunes connect before March 27 and as Apple says: "Only iPad apps compiled with iPhone SDK 3.2 beta 5 will be accepted for this initial review." So I compiled my application with iPhone SDK 3.2 beta 5 with a distribution provisioning profile. But when I upload my application on iTunes Connect, I have the following error: "The binary you uploaded was invalid. A pre-release beta version of the SDK was used to build the application" For sure, it's the beta 5 ! Have you got an idea? Thank you in advance. Fred

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• Share data between usercontrols

  - by toraan

  On my page I have n-userControls (same control) I need to communicate between them(to be more specific I need to pass one in value) . I don't want to involve the hosting page for that. The controls acts as "pagers" and interact with the paged data on the hostin page via events that hosting page is subscribed to. So when user click on one of the pager and changes it's state, the other control should know about it and change itself accordingly. I can not use VieState because viewstate is per control and so is the controlstate. Can I use Session for that? (session is shared and there is only one value that i need to store) Or maybe there is something better I can use? (no QueryString)

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• Setting a date format in ASP.NET web.config globalization tag?

  - by Jens Ameskamp

  In our web.config I am using the following tag to determine the interface language of an ASP.NET website. <globalization enableClientBasedCulture="true" culture="auto:en-GB" uiCulture="auto:en"/> This works as expected: Client wo request a specific localisation get it, everybody else is happily looking at the en-GB settings. Due to company policy I need to change the date format to the ISO 8601 standard format (YYYY-MM-DD) for everybody. Is this possible at a central place in the web.config or do I need to change this manually in every instance? Addition: Would it be possible to do get this date format when restricting the interface to english? Thanks! =)

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• Access / Excel crossover: Should i attach spreadsheets to records

  - by glinch

  Hi, I currently have an archaic system of client records that I am trying to improve. For each client i have a directory, in that directory i include a directory for each job. Each job has a spreadsheet that i use to store their personal details, and run calculations and costings specific to their needs. In turn I also have word documents that are linked to their spreadsheet which automatically update accordingly. The spreadsheet is also exported as a pdf as well I am trying to build a database of customer records in Access, straight forward enough. For each new customer i need to be able to add the appropriate spreadsheet to their records, update the spreadsheet accordingly with their details, use the spreadsheet to calculate their costings etc.. I do not want to enter the same information repeatedly, and would like a cohesive system, with data being passed between access and excel. Should this be easy enough to do with the two packages? Thanks in advance Noel

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• Hover text at mouse created from firefox toolbar add-on

  - by c-square

  Hi all, I'm creating a firefox add-on, and I have a situation where if someone clicks on a specific item in my toolbarbutton menupopup, I want to display some text to appear beside the mouse for a couple seconds. I don't mean mouseover text, because when they click on the item, the I close the menupopup. I mean something like what's shown at this site: http://www.kingsquare.nl/cursormessage The normal way of doing this would be with javascript and a div that would have the text I want to show. Unfortunately, I've discovered that the toolbarbutton can't have an effect on the main window, which is where I'd need to place the div to show. I've tried getting JQuery to work and haven't been successful either. Any help would be greatly appreciated. Thanks!

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• Launching unknown activities from an android application.

  - by oscarello

  Hi, I want to make an android application that shows a listing of applications (downloaded from the android market) and launches the one that the user selects. From what I've read, I'd have to use intents like this: Intent intent = new Intent(); intent.setClassName(packageName, className); startActivity(intent); I just want to be able to launch the applications, not a specific activity that they could have. My question is: how could I launch these applications if I don't know their packageName or className? or maybe, how could I get to know their className and packageName, if it's a closed source application that I didn't develop. Thanks.

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• How Do I Intercept Banner in WordPress?

  - by Volomike

  My client wants me to make a plugin that intercepts the banner on a WordPress blog so that the existing one displays, but right beneath it, above the content and the sidebar, another banner appears. And he needs it such that it works in most themes and isn't theme-specific. I found I could use add_action('loop_start','interceptMe') to put something at the top before posts or a single post, but it still left the sidebar on the right. I have tried using add_action('all','test') to dump out different intercepts to see if I could figure this out, but I just can't seem to get it yet. I'm thinking I may have to intercept all esc_html calls and contextually inspect that until I find one used for the banner. Does anyone know how to intercept the banner to add another one right beneath it?

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• Best practices for file system dependencies in unit/integration tests

  - by Olvagor

  I just started writing tests for a lot of code. There's a bunch of classes with dependencies to the file system, that is they read CSV files, read/write configuration files and so on. Currently the test files are stored in the test directory of the project (it's a Maven2 project) but for several reasons this directory doesn't always exist, so the tests fail. Do you know best practices for coping with file system dependencies in unit/integration tests? Edit: I'm not searching an answer for that specific problem I described above. That was just an example. I'd prefer general recommendations how to handle dependencies to the file system/databases etc.

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• Onpaint events (invalidated) changing execution order after a period normal operation (runtime)

  - by Luke Mcneice

  I have 3 data graphs that are painted via the their paint events. When I have data that I need to insert into the graph I call the controls invalidate() command. The first control's paint event actually creates a bitmap buffer for the other 2 graphs to avoid repeating a long loop. So the invalidate commands are in a specific order (1,2,3). This works well, however when the graphed data reaches the end of the graph window (PictureBox) where the data would normally start scrolling, the paint events begin firing in the wrong order (2,3,1). has anyone came across this before? why might this be happening?

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• How do you separate the template of a blog block in Drupal?

  - by Ralph

  Hi, In Drupal, I created a block using views. This block contains the latest blog entries. I've placed this on a specific page to display it as an archive. Now, as for the blog itself (for example when one of them is clicked), A blog template for it depends on node-blog.tpl.php. My problem is, when I style node-blog.tpl.php, the block I created for the archives (as it displays on the page) gets affected. For example if I add TEST on node-blog.tpl.php, I will also get that on the block for every entry. I think it's because it is associated to a blog entry? What I want is to have node-blog styled "alone" when blog entries are viewed individually and not get the other entries on the blocks on the archive page be affected. How should I do this?

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• A Scripting language for XNA

  - by RCIX

  I've written a game engine, which i want to integrate scripting into. However, i've looked at the available choices, which seem to be the following: Xnua Jint Managed Scripting The problems with those are (respectively): Built for XNA 1 -- there's an XNA 3.1 port but it's under the Apache license which i'm not sure is compatible with our goals (and it has a bit obtuse syntax) Appears to not properly use type-safe objects (e.g. ArrayList over generics) Is in beta, and only runs on XNA 3.0 So, to summarize my specific needs (in order of importance most to least): Needs to run on XNA 3.1 Needs to run on the XBox and Windows Should have a relatively simple API -- something closer to Jint's than Xnua's preferably uses Lua, C#, or similar languages Must be commercially sellable -- if some form of credit is needed, then that's fine. Are there any scripting solutions that meet my needs, or will i have to (eventually) roll my own?

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• What's your favorite vim color scheme?

  - by Nathan Long

  Wwhat is your favorite vim color scheme? I haven't found a great one yet, but what I'd like, in order of priority, are: Never confuses me. For example: When matching braces are highlighted, it's easy to see where the cursor is When I've got two or more tabs open, I can read all the titles and easily tell which one is active (maybe inactive ones look faded out) Very readable, both for regular code and for highlighting It would be nice if it was attractive I found one scheme that was ALMOST perfect (peaksea), but not quite - I couldn't read the titles of non-active tabs. So on a related note: anybody know a clear reference page for tweaking the colors of specific items?

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