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• Best practices for handling math calculations in a flash project?

  - by VideoDnd

  I'm building a Flash project where it needs to handle some math, like an acceleration formula. My director has recommended a design pattern where I include the calculations directly in the flash object, but that doesn't seem like it's very good OOP. What's the best practice for calculations in Flash? Should it be a separate object, so I can keep the "non-Flash" parts together and out of the way? What are people's experiences with including it inline vs. keeping it separate?

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• How to use Netbeans platform syntax highlight with JEditorPane?

  - by Volta

  There are many tutorials online giving very complex or non-working examples on this. It seems that people recommend others to use the syntax highlighters offered by netbeans but I am totally puzzled on how to do so! I have checked many many sites on this and the best I can find is : http://www.antonioshome.net/kitchen/netbeans/nbms-standalone.php However I am still not able to use this example (as it is aimed to people who don't want to use the Netbeans platform but just a portion of it) and I am still not sure if I can just use syntax highlighting in a simple plug 'n play way. For example netbeans supports several language highlights by default, can I just use the highlighters in a JEditorPane to parse Ruby/Python/Java for example ? or do I need to write my own parser :-| ? I will really appreciate a small simple example on how to plug syntax highlight in a standalone application using the netbeans platform.

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• Disable apache catch-all subdomain

  - by Lukas F

  Hi, I have a problem with my apache2 configuration and I hope someone here can help me. There is one server with one IP and a few domains. http://123.123.123.123 should have /var/www/123.123.123.123 as DocumentRoot http://www.domain1.com should have /var/www/domain1.com as DocumentRoot http://blog.domain1.com should have /var/www/blog.domain1.com as DocumentRoot http://www.domain2.com should have /var/www/domain2.com as DocumentRoot and http://bullshit.domain1.com along with all other non-existing subdomains on both domains should return a 404 page. What am I doing wrong? That can't be so hard, and I'm sure I had it working before... In my current config all subdomains show the /var/www/123.123.123.123. I guess because thats the first VirtualHost apache is reading.

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• GLib Hash Table - Pointer

  - by Mike

  I'm trying to increment the value of some specific key if it was found. For some reason I keep getting the (pointer) address when I dump all keys:values from the hash table. Output a: 153654132 // should be 5 b: 1 c: 153654276 // should be 3 d: 1 e: 1 f: 153654420 // should be 3 int proc() { struct st stu; gpointer ok, ov; //... some non-related code here if(!g_hash_table_lookup_extended(table, key, &ok, &ov)){ stu.my_int = g_malloc(sizeof(guint)); *(stu.my_int) = 0; g_hash_table_insert(table, g_strdup(key), GINT_TO_POINTER(1)); }else{ stu.my_int = g_malloc(sizeof(guint)); *(stu.my_int)++; g_hash_table_insert(table, g_strdup(key), stu.my_int); } } Any ideas will be appreciate it.

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• GLib Hash Table - Pointer

  - by Mike

  I'm trying to increment the value of some specific key if it was found. For some reason I keep getting the (pointer) address when I dump all keys:values from the hash table. Output a: 153654132 // should be 5 b: 1 c: 153654276 // should be 3 d: 1 e: 1 f: 153654420 // should be 3 int proc() { struct st stu; gpointer ok, ov; //... some non-related code here if(!g_hash_table_lookup_extended(ht, key, &ok, &ov)){ stu.my_int = g_malloc(sizeof(guint)); *(stu.my_int) = 0; g_hash_table_insert(table, g_strdup(key), GINT_TO_POINTER(1)); }else{ stu.my_int = g_malloc(sizeof(guint)); *(stu.my_int)++; g_hash_table_insert(table, g_strdup(key), stu.my_int); } } Any ideas will be appreciate it.

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• Are there macro facility for Java or C#?

  - by h2g2java

  Macros are useful. Therefore, I occasionally bemoan the absence of macros in Java and C#. Macros allow me to force in-line but allow me the code-manageability of non-macro code. Is there any Java- or C#-based project/product somewhere out there that effectively allow macros or specifying in-line expansion. I am thinking of something like @macro public void hello(int x){ ... } or when I call a method, an @inline annotation preceding the call would effect the called-method to be in-lined. or, should I need to know that I should just trust the compiler to make the best the decision for me that at the best of its analysis it might in-line a call. I hope this question will not lead to debating the pro/cons/usefulness of macros.

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• Editing Div Text At Click Position

  - by sonofdelphi

  I have a DIV which contains some text. When a user clicks on some content in the DIV, I want to enable him to edit the content at that position. <div id='Note'> Lorem ipsum dolor sit amet, consectetur adipisicing elit, <br /> sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. <br /> Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip <br /> ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse <br /> cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, <br /> sunt in culpa qui officia deserunt mollit anim id est laborum.<br /> </div>

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• Can mouseenter be made to not fire in IE on DOMready?

  - by mrclay

  jQuery emulates IE's mouseenter event on non-IE browsers. In IE, however, mouseenter is being triggered when the page loads (maybe due to jQuery's use of doScroll in the $.ready implementation), even if the mouse is not moved at all. This doesn't happen in other browsers and definitely doesn't follow Microsoft's own spec, which says (emphasis mine): The event fires only if the mouse pointer is outside the boundaries of the object and the user moves the mouse pointer inside the boundaries of the object. If the mouse pointer is currently inside the boundaries of the object, for the event to fire, the user must move the mouse pointer outside the boundaries of the object and then back inside the boundaries of the object. This only becomes an issue of usability if hover (or the hoverIntent plugin) is applied to a navigational item to display a drop down or "mega-menu": In IE, mouseenter will fire immediately after $.ready, obscuring the content with the menu. I've put together a demonstration of both the mouseenter inconsistency and the usability issue it creates.

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• Spring/Hibernate/Junit example of testing DAO against HSQLDB

  - by Ryan P.

  Hi guys, I'm working on trying to implement a JUnit test to check the functionality of a DAO. (The DAO will create/read a basic object/table relationship in HSQLDB). The trouble I'm having is the persistence of the DAO (for the non-test code) is being completed through an in-house solution using Spring/Hibernate, which eliminates the usual *.hbm.xml templates that most examples I have found contain. Beacuse of this, I'm having some trouble understanding how to setup a JUnit test to implement the DAO to create/read (just very basic funtionality) to an in-memory HSQLDB. I have found a few examples, but the usage of the in-house persistence means I can't extend some of the classes the examples show (I can't seem to get the application-context.xml setup properly). Can anyone suggest any projects/examples I could take a look at (or any documentation) to further my understanding of the best way to implement this test functionality? I feel like this should be really simple, but I keep running into problems implementing the examples I have found. Thanks in advance!

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• C# Reset a property

  - by Jeff

  I'm writing a Clone function for a non serializeable object.For most objects I don't care if they are shallow copied as I won't be making any changes to them. I start with a MemberwiseClone and this copies all the values and few objects like configuration dictionary over just fine but they are pointers. EAVEntity newClone = (EAVEntity) this.MemberwiseClone(); newClone.EntityStorageID = Guid.NewGuid(); newClone.Controls.Clear(); So how do I reset a pointer so I can make them not point at the same location?

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• Using makecert for Development SSL

  - by John

  Here's my situation: I'm trying to create a SSL certificate that will be installed on all developer's machine's, along with two internal servers (everything is non-production). What do I need to do to create a certificate that can be installed in all of these places? Right now I've got something along these lines, using the makecert application in Microsoft Visual Studio 8\SDK\v2.0\Bin: makecert -r -pe -n "CN=MySite.com Dev" -b 01/01/2000 -e 01/01/2033 -eku 1.3.6.1.5.5.7.3.1 -ss Root -sr localMachine -sky exchange -sp "Microsoft RSA SChannel Cryptographic Provider" -sy 12 mycert.cer However, I'm not sure as to how to place this .cer file on the other computers, and when I install it on my local machine IIS, everytime I visit a page via https:, I get the security prompt (even after I've installed the certificate). Has anyone done this before?

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• VS 2010 Layer Diagram Validation Error is Showing A Dependency That Doesn't Even Exist (AV0001)

  - by Dan

  I'm getting the following validation error on my layer diagram Error 65 AV0001 : Invalid Dependency : Weld.Interface.Core(Assembly) -- Weld.Interface(Namespace) Layers: Application Framework Core, Application Framework | Dependencies: Namespace Reference D:\Projects\Windows Projects\Weld\Weld\ModelingProject1\Weld.layerdiagram 0 0 ModelingProject1 Weld.Interface.Core: This assembly and namespace does not have a reference to Weld.Interface and only references .NET Framework classes Weld.Interface: This assembly and namespace does not have a reference to Weld.Interface There is no dependancy between these two layers in the dependency diagram. I am confused why I am getting this error. No dependency in the project or code, and no dependency is even setup in the layer diagram. Somehow the Validation logic in the layer diagram is seeing a non existant dependency and saying it is an error. Any ideas what either I might have missed or what is causing this problem?

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• rails arguments to after_save observer

  - by ash34

  Hi, I want users to enter a comma-delimited list of logins on the form, to be notified by email when a new comment/post is created. I don't want to store this list in the database so I would use a form_tag_helper 'text_area_tag' instead of a form helper text_field. I have an 'after_save' observer which should send an email when the comment/post is created. As far as I am aware, the after_save event only takes the model object as the argument, so how do I pass this non model backed list of logins to the observer to be passed on to the Mailer method that uses them in the cc list. thanks

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• CMS for news editing

  - by Genrih

  It is necessary to convert the site into CMS. One of the main features - edit the articles of some type, and to do so will be non-programmers, that is, the simpler the better. Ideally - no editor like ckeditor, but simply wizard, where its possible to insert images, text, title text, and it's all displayed in the page default template. Wizard can be implemented by me, let it be just not very difficult to change the default editor. Also multilanguage support is required. What can you advise?

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• Filter DataTable to show only the most recent transaction for each user

  - by Dan Neely

  I have a datatable that contains rows of transaction data for multiple users. Each row includes UserID and UserTransactionID columns. What would I use for as a RowFilter in the tables DefaultView to only show the row for each user that has the highest UserTransactionID value? sample data and results UserID UserTransactionID PassesFilter 1 1 False 1 2 False 1 3 True 2 1 True 3 1 False 3 2 True My data is orginating in a non-SQL source, the DataTable is being created to be bound to a DataGridView so I can't make changes to a query being used to get the data initially.

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• Generate canonical / real URL based on base.href or location

  - by blueyed

  Is there a method/function to get the canonical / transformed URL, respecting any base.href setting of the page? I can get the base URL via (in jQuery) using $("base").attr("href") and I could use string methods to parse the URL meant to being made relative to this, but $("base").attr("href") has no host, path etc attributes (like window.location has) manually putting this together is rather tedious E.g., given a base.href of "http://example.com/foo/" and a relative URL "/bar.js", the result should be: "http://example.com/bar.js" If base.href is not present, the URL should be made relative to window.location. This should handle non-existing base.href (using location as base in this case). Is there a standard method available for this already? (I'm looking for this, since jQuery.getScript fails when using a relative URL like "/foo.js" and BASE tag is being used (FF3.6 makes an OPTIONS request, and nginx cannot handle this). When using the full URL (base.href.host + "/foo.js", it works).)

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• c# HTTPListener encoding issue

  - by Rob Griffin

  I have a Java application sending HTTP requests to a C# application. The C# app uses HTTPListener to listen for requests and respond. On the Java side I'm encoding the URL using UTF-8. When I send a \ character it gets encoded as %5C as expected but on the C# side it becomes a / character. The encoding for the request object is Windows-1252 which I think may be causing the problem. How do I set the default encoding to UTF-8? Currently I'm doing this to convert the encoding: foreach (string key in request.QueryString.Keys) { if (key != null) { byte[] sourceBytes =request.ContentEncoding.GetBytes(request.QueryString[key]); string value = Encoding.UTF8.GetString(sourceBytes)); } } This handles the non ASCII characters I'm also sending but doesn't fix the slash problem. Examining request.QueryString[key] in the debugger shows that the / is already there.

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• Should you remove all warnings in your Verilog or VHDL design? Wh or why not?

  - by Brian Carlton

  In (regular) software I have worked at companies where the gcc option -Wall is used to show all warnings. Then they need to be dealt with. With non-trivial FPGA/ASIC design in Verilog or VHDL there are often many many warnings. Should I worry about all of them? Do you have any specific techniques to suggest? My flow is mainly for FPGAs (Altera and Xilinx in particular), but I assume the same rules would apply to ASIC design, possibly more so due to the inability to change the design after it is built.

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• Efficient JSON encoding for data that may be binary, but is often text

  - by Evgeny

  I need to send a JSON packet across the wire with the contents of an arbitrary file. This may be a binary file (like a ZIP file), but most often it will be plain ASCII text. I'm currently using base64 encoding, which handles all files, but it increases the size of the data significantly - even if the file is ASCII to begin with. Is there a more efficient way I can encode the data, other than manually checking for any non-ASCII characters and then deciding whether or not to base64-encode it? I'm currently writing this in Python, but will probably need to do the same in Java, C# and C++, so an easily portable solution would be preferable.

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• ruby on rails params injection

  - by Julien P.

  Hello everyone, I have a question about ruby on rails and the process of assigning variables using the params variable passed through a form class User attr_accessible :available_to_admins, :name end Let's say that I have a field that is only available to my admins. Assuming that you are not an admin, I am going to not display the available_to_admins input in your form. After that, when I want to save your data I'll just do a: User.update_attributes(params[:user]) If you are an admin, then no problem, the params[:user] is going to contain name and available_tu_admins and if you're not then only your name. Since the available_to_admins is an attr_accessible parameter, how should I prevent non admin users from being able to inject a variable containing the available_to_admins input with their new value?

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• How can I return default at loop end in Scheme?

  - by Kufi Annan

  I'm trying to implement back-tracking search in Scheme. So far, I have the following: (define (backtrack n graph assignment) (cond (assignment-complete n assignment) (assignment) ) (define u (select-u graph assignment)) (define c 1) (define result 0) (let forLoop () (when (valid-choice graph assignment c) (hash-set! assignment u c) (set! result (backtrack n graph assignment)) (cond ((not (eq? result #f)) result)) (hash-remove! assignment u) ) (set! c (+ c 1)) (when (>= n c) (forLoop)) ) #f ) My functions assignment-complete and select-u pass unit tests. The argument assignment is a hash-table make with (make-hash), so it should be fine. I believe the problem I have is related to returning false at the end of the loop, if no recursive returns a non-false value (which should be a valid assignment).

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• Windows disassembler: looking for a tool...

  - by SigTerm

  Hello. I'm looking for a (preferably free) tool that can produce "proper" disassembly listing from a (non-.NET) windows PE file (*.exe or *.dll). Important requirement: it should be possible to run the listing through a windows assembler (nasm, masm or whatever) and get working exe again (not necessarily identical to original one, but it should behave in the same way). Intended usage is adding new subroutines into existing code, when source is not available. Ideally, tool should be able to detect function/segment boundaries, API calls, and generate proper labels for jumps (I can live without labels for loops/jumps, though, but function boundary detection would be nice), and keep program resources/segments in place. I'm already aware of IdaPRO(not free), OllyDBG (useful for in-place hacking, doesn't generate disassembly listing, AFAIK), ndisasm (output isn't suitable for assembler), dumpbin (useful, but AFAIK, output isn't suitable for assembler) and "proxy dll" technique. Ideas? Or maybe there is a book/tutorial that explains some kind of alternative approach?

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• Flash video player VS HTML 5 Video.....

  - by metal-gear-solid

  I need to add a video player to play a video on a webpage. usually i use Flash player with the help of swfobject library. which works if flash player and javascript both are enabled. I'm currently using XHTML 1.0 strict doctype. My question is can i just change my doctype to HTML 5 doctype and add Video player using HTML 5 video. for browser which do not support HTML5 i can a a javascript. in this condition in supported browser Video will work without Flash player and javascript and in non-supported browser will work with js support. Is this possible? Is this a good idea?

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• CakePHP Accessing Dynamically Created Tables?

  - by Dave

  As part of a web application users can upload files of data, which generates a new table in a dedicated MySQL database to store the data in. They can then manipulate this data in various ways. The next version of this app is being written in CakePHP, and at the moment I can't figure out how to dynamically assign these tables at runtime. I have the different database config's set up and can create the tables on data upload just fine, but once this is completed I cannot access the new table from the controller as part of the record CRUD actions for the data manipulate. I hoped that it would be along the lines of function controllerAction(){ $this->uses[] = 'newTable'; $data = $this->newTable->find('all'); //use data } But it returns the error Undefined property: ReportsController::$newTable Fatal error: Call to a member function find() on a non-object in /app/controllers/reports_controller.php on line 60 Can anyone help.

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• How to format a function pointer?

  - by Longpoke

  Is there any way to print a pointer to a function in ANSI C? Of course this means you have to cast the function pointer to void pointer, but it appears that's not possible?? #include <stdio.h> int main() { int (*funcptr)() = main; printf("%p\n", (void* )funcptr); printf("%p\n", (void* )main); return 0; } $ gcc -ansi -pedantic -Wall test.c -o test test.c: In function 'main': test.c:6: warning: ISO C forbids conversion of function pointer to object pointer type test.c:7: warning: ISO C forbids conversion of function pointer to object pointer type $ ./test 0x400518 0x400518 It's "working", but non-standard...

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