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  • C++ OpenSource project for beginner programmer?

    - by VeminZ
    I`m a beginner C++ programmer. And I want to pursue my career in system- and driver-programming. Can you suggest me an opensource projects to I improve my skills in low-level development? I am looking for a project with the following characteristic: - on C\C++ language based - a small project with a small amount of code, yet - UNIX-based systems designed Do you know that something like this?

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  • Showing login view controller before main tab bar controller

    - by Padawan
    I'm creating an iPad app with a tab bar controller that requires login. So on launch, I want to show a LoginViewController and if login is successful, then show the tab bar controller. This is how I implemented an initial test version (left out some typical header stuff, etc)... AppDelegate.h: @interface AppDelegate_Pad : NSObject <UIApplicationDelegate, LoginViewControllerDelegate> { UIWindow *window; UITabBarController *tabBarController; } @property (nonatomic, retain) IBOutlet UIWindow *window; @property (nonatomic, retain) IBOutlet UITabBarController *tabBarController; @end AppDelegate.m: @implementation AppDelegate_Pad @synthesize window; @synthesize tabBarController; - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { LoginViewController_Pad *lvc = [[LoginViewController_Pad alloc] initWithNibName:@"LoginViewController_Pad" bundle:nil]; lvc.delegate = self; [window addSubview:lvc.view]; //[lvc release]; [window makeKeyAndVisible]; return YES; } - (void)loginViewControllerDidFinish:(LoginViewController_Pad *)loginViewController { [window addSubview:tabBarController.view]; } - (void)dealloc {...} @end LoginViewController_Pad.h: @protocol LoginViewControllerDelegate; @interface LoginViewController_Pad : UIViewController { id<LoginViewControllerDelegate> delegate; } @property (nonatomic, assign) id <LoginViewControllerDelegate> delegate; - (IBAction)buttonPressed; @end @protocol LoginViewControllerDelegate -(void)loginViewControllerDidFinish:(LoginViewController_Pad *)loginViewController; @end LoginViewController_Pad.m: @implementation LoginViewController_Pad @synthesize delegate; ... - (IBAction)buttonPressed { [self.view removeFromSuperview]; [self.delegate loginViewControllerDidFinish:self]; } ... @end So the app delegate adds the login view controller's view on launch and waits for login to call "did finish" using a delegate. The login view controller calls removeFromSuperView before it calls didFinish. The app delegate then calls addSubView on the tab bar controller's view. If you made it up to this point, thanks, and I have three questions: MAIN QUESTION: Is this the right way to show a view controller before the app's main tab bar controller is displayed? Even though it seems to work, is it a proper way to do it? If I comment out the "lvc release" in the app delegate then the app crashes with EXC_BAD_ACCESS when the button on the login view controller is pressed. Why? With the "lvc release" commented out everything seems to work but on the debugger console it writes this message when the app delegate calls addSubView for the tab bar controller: Using two-stage rotation animation. To use the smoother single-stage animation, this application must remove two-stage method implementations. What does that mean and do I need to worry about it?

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  • google-app-engine-django: authentication without Google accounts?

    - by cv12
    google-app-engine-django/ claims to have an "App Engine compatible implementation of the Django authentication framework". Does this authentication work only with Google Accounts? Is it possible to register a user with a username/password and authenticate him/her with that username/password without that user having a Google account? I would appreciate any pointers to how this could be done with google-app-engine-django without Google Accounts authentication.

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  • VU meter implementaion in iphone

    - by Sreelal
    Hi, I am developing an aplication for iphone which records audio and save that audio file .I need to create a UI similar to that in Voice Memo app with VU meter .I implemented codes to record audio,but i have no idea about VU meter implementation.Looking forward for a reply ......Thanks in advance

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  • running my own jabber/xmpp server

    - by akshay
    Can i make my own jabber server.So that if i run my website xyz then people should be be able to get theri jabber id from my website by registering on my website. Is there any open source implementation of jabber server that i can use?

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  • Many to Many with LINQ-To-Sql and ASP.NET MVC

    - by Jonathan Stowell
    Hi All, I will restrict this to the three tables I am trying to work with Problem, Communications, and ProbComms. The scenario is that a Student may have many Problems concurrently which may affect their studies. Lecturers may have future communications with a student after an initial problem is logged, however as a Student may have multiple Problems the Lecturer may decide that the discussion they had is related to more than one Problem. Here is a screenshot of the LINQ-To-Sql representation of my DB: LINQ-To-Sql Screenshot At the moment in my StudentController I have a StudentFormViewModel Class: // //ViewModel Class public class StudentFormViewModel { IProbCommRepository probCommRepository; // Properties public Student Student { get; private set; } public IEnumerable<ProbComm> ProbComm { get; private set; } // // Dependency Injection enabled constructors public StudentFormViewModel(Student student, IEnumerable<ProbComm> probComm) : this(new ProbCommRepository()) { this.Student = student; this.ProbComm = probComm; } public StudentFormViewModel(IProbCommRepository pRepository) { probCommRepository = pRepository; } } When I go to the Students Detail Page this runs: public ActionResult Details(string id) { StudentFormViewModel viewdata = new StudentFormViewModel(studentRepository.GetStudent(id), probCommRepository.FindAllProblemComms(id)); if (viewdata == null) return View("NotFound"); else return View(viewdata); } The GetStudent works fine and returns an instance of the student to output on the page, below the student I output all problems logged against them, but underneath these problems I want to show the communications related to the Problem. The LINQ I am using for ProbComms is This is located in the Model class ProbCommRepository, and accessed via a IProbCommRepository interface: public IQueryable<ProbComm> FindAllProblemComms(string studentEmail) { return (from p in db.ProbComms where p.Problem.StudentEmail.Equals(studentEmail) orderby p.Problem.ProblemDateTime select p); } However for example if I have this data in the ProbComms table: ProblemID CommunicationID 1 1 1 2 The query returns two rows so I assume I somehow have to groupby Problem or ProblemID but I am not too sure how to do this with the way I have built things as the return type has to be ProbComm for the query as thats what Model class its located in. When it comes to the view the Details.aspx calls two partial views each passing the relevant view data through, StudentDetails works fine page: <%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<MitigatingCircumstances.Controllers.StudentFormViewModel>" %> <% Html.RenderPartial("StudentDetails", this.ViewData.Model.Student); %> <% Html.RenderPartial("StudentProblems", this.ViewData.Model.ProbComm); %> StudentProblems uses a foreach loop to loop through records in the Model and I am trying another foreach loop to output the communication details: <%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<IEnumerable<MitigatingCircumstances.Models.ProbComm>>" %> <script type="text/javascript" language="javascript"> $(document).ready(function() { $("DIV.ContainerPanel > DIV.collapsePanelHeader > DIV.ArrowExpand").toggle( function() { $(this).parent().next("div.Content").show("slow"); $(this).attr("class", "ArrowClose"); }, function() { $(this).parent().next("div.Content").hide("slow"); $(this).attr("class", "ArrowExpand"); }); }); </script> <div class="studentProblems"> <% var i = 0; foreach (var item in Model) { %> <div id="ContainerPanel<%= i = i + 1 %>" class="ContainerPanel"> <div id="header<%= i = i + 1 %>" class="collapsePanelHeader"> <div id="dvHeaderText<%= i = i + 1 %>" class="HeaderContent"><%= Html.Encode(String.Format("{0:dd/MM/yyyy}", item.Problem.ProblemDateTime))%></div> <div id="dvArrow<%= i = i + 1 %>" class="ArrowExpand"></div> </div> <div id="dvContent<%= i = i + 1 %>" class="Content" style="display: none"> <p> Type: <%= Html.Encode(item.Problem.CommunicationType.TypeName) %> </p> <p> Problem Outline: <%= Html.Encode(item.Problem.ProblemOutline)%> </p> <p> Mitigating Circumstance Form: <%= Html.Encode(item.Problem.MCF)%> </p> <p> Mitigating Circumstance Level: <%= Html.Encode(item.Problem.MitigatingCircumstanceLevel.MCLevel)%> </p> <p> Absent From: <%= Html.Encode(String.Format("{0:g}", item.Problem.AbsentFrom))%> </p> <p> Absent Until: <%= Html.Encode(String.Format("{0:g}", item.Problem.AbsentUntil))%> </p> <p> Requested Follow Up: <%= Html.Encode(String.Format("{0:g}", item.Problem.RequestedFollowUp))%> </p> <p>Problem Communications</p> <% foreach (var comm in Model) { %> <p> <% if (item.Problem.ProblemID == comm.ProblemID) { %> <%= Html.Encode(comm.ProblemCommunication.CommunicationOutline)%> <% } %> </p> <% } %> </div> </div> <br /> <% } %> </div> The issue is that using the example data before the Model has two records for the same problem as there are two communications for that problem, therefore duplicating the output. Any help with this would be gratefully appreciated. Thanks, Jon

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  • Papers on Software Methodology recommendation

    - by kunjaan
    Please recommend me software engineering/methodology/practices paper. So far I have enjoyed: 1968 Dijkstra : Go To Statement Considered Harmful Reason about correctness about program Nikalus Wirth : Program Development by Stepwise Refinement Not worried about program structure 1971 David Parnas : Information Distribution Aspects of Design Methodology 1972 Liskov : Design Methodology for Reliable Software Systems Extensible Language : Schuman and P Jourrand R. Balzer Structured Programming : Dahl - Hierarchical Program Structures 1971 Jim Morris Protection in Programming Languages 1973 Bill Wulf and Mary Shaw Global Variable Considered Harmful 1974 : Lisko and Zilles ADTs

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  • YUI - Pros and Cons

    - by StackOverflowNewbie
    I'm about to begin a new project and plan to use YUI and my JS and CSS framework for the following reasons: Treeview with tri-state checkboxes (seems to be the best implementation I could find) Calandar (seen others, but since #1 is on YUI, I'm glad it also has calendar) CSS framework (was going to use 960, but might as well go 100% Yahoo) I plan to use only 1 JS framework. Does anyone see any problems with my decision?

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  • implement a coverflow UI in an Android web application

    - by ravidor
    I am trying to build a coverflow UI on an Android web application using HTML,CSS, JavaScript and some images. CSS 3D transforms, which are supported in Safari sine 2009 and on the iPhone since version 2.0, is not supported well on the Android. worse then that, the implementation is buggy on Android 2.1 and Android 2.2, and in each version in a different way. Any idea how can I build a coverflow UI on an Android web application using HTML,CSS, JavaScript and some images without CSS 3D transforms?

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  • Cruise Control.Net best practices

    - by Nasser Hajloo
    I'm going to implement a CI process with CC.NET so I'm looking for best practices for CC.net implementation. I use SVN as source control and JIRA as an issue tracker (if it's a useful tip). Any recommandation or article suggestion will be appreciated. Note: I read this article by Martin Fowler.

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  • perl regex escape characters

    - by freshWoWer
    I have heard perl is a good language at doing regex but i am a bit confused at the characters that requires escaping I tested the code on http://regexlib.com/RETester.aspx and got the result I want //home/dev/abc/code/hello/world.cpp#1 //home/dev/((.*?)/[^/]+).*# Match $1 $2 //home/dev/abc/code/hello/world.cpp# abc/code abc However, I am not quite sure how do i translate this to perl code I tried, \/\/home\/dev\/\(\(\.\*\?\)\/\[\^\/\]\+\)\.\*\# and \/\/home\/dev\/((.*?)\/[^\/]+).*\# and both failed Don't you think the escaping makes the regex very unreadable? Am i using something wrong?

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  • HTTP Request from a PC to load the contents of a wap site

    - by cocoatoucher
    When I try to load a wap site with PHP HTTP request from my PC, host of the web site recognizes that I'm sending the request from a PC and redirects me to their actual web site and I can't load the wap site. Is there a way to behave like a mobile browser and prevent this redirection? Although an answer regarding any programming language is ok, a php specific answer will be better.

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  • What are the disadvantages to declaring Scala case classes?

    - by Graham Lea
    If you're writing code that's using lots of beautiful, immutable data structures, case classes appear to be a godsend, giving you all of the following for free with just one keyword: Everything immutable by default Getters automatically defined Decent toString() implementation Compliant equals() and hashCode() Companion object with unapply() method for matching But what are the disadvantages of defining an immutable data structure as a case class? What restrictions does it place on the class or its clients? Are there situations where you should prefer a non-case class?

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  • Are iframes a terrible idea?

    - by jamtoday
    I'm building a widget, and I've been using iframes to present content within it. At some point, I might start serving third party HTML and JS, so I thought iframes would be a good idea. It does make the widget javascript a little more complicated, and I'm concerned that this might not be the best implementation. Do you have any advice? It would be a huge help to hear what other people think about iframes.

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  • MATLAB date selection popup calendar for gui

    - by Doresoom
    Does anyone know of a method to display a popup date selection calendar in a MATLAB gui? I know the financial toolbox has a uicalendar function, but unfortunately I don't have that toolbox. I have a hunch I'm going to have to use some Java or some other language for this one, which I know nothing about. I'm looking for something similar to this: which would return a date string after the user selects the date.

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  • How to share classes between DLLs

    - by Jamie Hale
    I have an unmanaged Win32 C++ application that uses multiple C++ DLLs. The DLLs each need to use class Foo - definition and implementation. Where do Foo.h and Foo.cpp live so that the DLLs link and don't end up duplicating code in memory? Is this a reasonable thing to do?

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  • ASP.NET MVC: Implementing an OpenID sign-in page ala NerdDinner v2

    - by pcampbell
    Consider the log in page on NerdDinner.com: http://www.nerddinner.com/Account/LogOn Some nice features: jQuery effects on the OpenID choice popups for the other major providers Is this revision of the NerdDinner AccountController and its View available for public download? How would you reinvent this implementation? Any code you can post would be fine. Calling Jon Galloway!

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  • Could MacRuby / HotCocoa supplant the need to know Objective-C?

    - by frou
    I just discovered MacRuby / HotCocoa and really like the sound of what they're doing. I had essentially discounted the prospect of making Cocoa GUI applications myself because I have an aversion to spending time & effort learning yet another C-based language, Objective-C. I'm not saying it's bad, just not for me. Is it the case now, or in the probable future, that one will be able to make Cocoa GUI applications of substantial and first-class nature with MacRuby / HotCocoa alone while ignoring Objective-C completely?

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  • DUnit: How to run tests?

    - by Ian Boyd
    How do i run TestCase's from the IDE? i created a new project, with a single, simple, form: unit Unit1; interface uses Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls; type TForm1 = class(TForm) private public end; var Form1: TForm1; implementation {$R *.DFM} end. Now i'll add a test case to check that pushing Button1 does what it should: unit Unit1; interface uses Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls; type TForm1 = class(TForm) Button1: TButton; procedure Button1Click(Sender: TObject); private public end; var Form1: TForm1; implementation {$R *.DFM} uses TestFramework; type TForm1Tests = class(TTestCase) private f: TForm1; protected procedure SetUp; override; procedure TearDown; override; published procedure TestButton1Click; end; procedure TForm1.Button1Click(Sender: TObject); begin //todo end; { TForm1Tests } procedure TForm1Tests.SetUp; begin inherited; f := TForm1.Create(nil); end; procedure TForm1Tests.TearDown; begin f.Free; inherited; end; procedure TForm1Tests.TestButton1Click; begin f.Button1Click(nil); Self.CheckEqualsString('Hello, world!', f.Caption); end; end. Given what i've done (test code in the GUI project), how do i now trigger a run of the tests? If i push F9 then the form simply appears: Ideally there would be a button, or menu option, in the IDE saying Run DUnit Tests: Am i living in a dream-world? A fantasy land, living in a gumdrop house on lollipop lane?

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