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  • JSF (and friends) tags vs. traditional html tags

    - by H3wh0s33ks
    So this question came up today and I didn't have a specific or scientific answer. What are the costs associated with using jsf (or tomahawk, faclets, etc., etc.) tags in place of traditional html tags. My gut reaction is that you should use jsf tags in situations where you need the additional functionality they provide, and use traditional tags when you don't. Also I feel like jsf tags would require more resources (since the server has to take them and rerender them as html anyways) than html. Does anybody know what the cost actually is (as far as time and memory)? Also useful information is what is the convention that is in use, pure jsf or a mixture of the two?

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  • C++: FFMPEG and SDL resources

    - by advs89
    I'm looking for resources (preferably books, but websites are fine too) for using FFMPEG and/or SDL with C++. Stuff I'd like to be able to do (eventually): Decode and play videos in realtime to a QT widget (the QT part isn't a problem) Overlay text and images on the video (in realtime) Loop video Cross-fade from one video to another (in realtime) Some kind of DVD functionality LIVE sources? (i.e. webcam, stream, etc.) So far I've looked at (and consider helpful) the following resources: FFMPEG and SDL Tutorial by Dranger (extremely helpful) StackOverflow: ffmpeg C API documentation/tutorial (not a duplicate, btw) Sample code bundled with FFMPEG libraries (I'll try and update this list with anything helpful below) Thanks for any help... Also: Operating System is Windows (but maybe one day cross-platform) Also 2: Resources using alternatives are welcome too... i.e. DirectShow, VFW, etc.

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  • Maven overlay with war not generated by maven

    - by dnc253
    I'm pretty new to Maven, so I apologize if this is a newbie question. We are trying to integrate a 3rd-party app into ours. This 3rd-party functionality is delivered to us as a war file. As part of this integration, I want to add some extra jars and and a properties file. Googling around, I discovered overlays. However, in all the examples I've seen, it looks the the wars that are being overlayed, were themselves generated by Maven, and thus Maven can figure out dependencies, conflicts, etc. between the two. I'm just wondering if there's a way for me to overlay this 3rd-party war with this extra stuff I want. If so, what would that look like in the pom.xml?

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  • Facebook Black Screen when in IFrame

    - by Rico
    I have Facebook in an Iframe for the convenience of my clients. But all of a sudden it doesn't work.. It simply covers itself with a black screen. Is there a work around? Something I can do. Maybe even have someone code to their API to get all the functionality back. Is there a sollution already out there?? <html> <body> <iframe src="http://www.facebook.com/" width=800 height=600 /> </body> </html>

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  • LINQ parent child relation

    - by Shane Km
    I'm working on the BLOG functionality in MVC. I need to be able to create 'blog comments'. So each comment may have a parent comment etc. Given table "Comments": CommentId - int - identity autoincrement PostId - int ParentId - int Comment - string Is there a way to get a list of comments for a given article ordered by CreateDate and ParentId? Or maybe there is a better table design you may suggest. What is the best design when inserting Post comments like this? I'm using Entity framework. thanks

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  • Should I separate RESTful API controllers from "regular" controllers?

    - by keithjgrant
    This seems like an elementary question, but after a lot of searching around I can't seem to find a straightforward explanation: If I'm building a web application that is going to be accessed largely through a web browser, but that will also support some API requests in a RESTful way, should there be a large degree of separation between the two? On one hand, it seems a large amount of the functionality is the same, with identical data presented in different views (HTML vs. XML/JSON). But on the other hand, there are certain things I need to present to the browser that doesn't quite fit a RESTful approach: how to get an empty form to create a new instance of a resource and how to get a pre-populated form to edit an existing resource. Should these two different methods of accessing the system by funneled through different controllers? Different methods in the same controller? The exact same methods with a switch for view type?

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  • What are my alternatives to manage Python packages for clients?

    - by c00kiemonster
    So the setup is a slew of proprietary server/client Python applications running on one Linux box (the server) and a set of Windows 7 workstations (the clients). Everything is running smoothly until any of the proprietary Python packages needs updating. For now I am using distutils eggs which are very easily updated with easy_install, but it is still a manual process which quickly becomes tedious as the number of applications and client workstations grow. The ideal setup IMHO is to have the Python packages on the server so when a client application is launched on a workstation the client application can check to see whether its current Python packages are up-to-date. If not, the client application should download the newer Python package from the server, install it, and then launch as per normal. Does this sounds familiar to anyone? I have tried to find alternatives myself, but as far as I can see there is no Python module offering this functionality. Does anyone have any home made solutions for this?

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  • Launching a Facebook page from an iPhone app via QR code

    - by user1655186
    I'm trying to create a QR code that launches a Facebook page from the app, rather than the browser on both Android and iOS. Creating the code with fb://page/<page id>, works perfectly on an Android. This was also supposed to work with iOS's Facebook app, but I think since Facebook updated their app recently from a HTML5 version to a fully native iOS app, that functionality has stopped working. It indeed opens the Facebook app, but it does not go to the page. Has anyone else seen this happen since the app was updated a few weeks ago? And what string would I have to use to create a working QR Code for iOS's Facebook app?

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  • Why so many individual System.Web.* DLLs?

    - by toasteroven
    I've been thinking about ways to refactor a fairly expansive class/utility library I have, and one thing I think I want to do is split off any higher-level helper utilities that introduce new dependencies. I read some previous questions here, and one that I particularly noticed was a comment about how Microsoft freely uses namespaces across DLLs. The example given was System.Web - it's in the base framework, but there's also a System.Web.dll that adds more functionality to the namespace if you want it. I also noticed several other System.Web.* DLLs available, and I was wondering if there's a reason why they wouldn't be combined into a single DLL. Could it be that they have their own individual dependencies and Microsoft (like me) wanted to separate assemblies along those lines? Or is it for easier maintenance? Something else entirely?

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  • How to avoid "incomplete implementation" warning in partial base class

    - by garph0
    I have created a protocol that my classes need to implement, and then factored out some common functionality into a base class, so I did this: @protocol MyProtocol - (void) foo; - (void) bar; @end @interface Base <MyProtocol> @end @interface Derived_1 : Base @end @interface Derived_2 : Base @end @implementation Base - (void) foo{ //something foo } @end @implementation Derived_1 - (void) bar{ //something bar 1 } @end @implementation Derived_2 - (void) bar{ //something bar 2 } @end In this way in my code I use a generic id<MyProtocol>. The code works (as long as Base is not used directly) but the compiler chokes at the end of the implementation of Base with a warning: Incomplete implementation of class Base Is there a way to avoid this warning or, even better, a more proper way to obtain this partially implemented abstract base class behavior in Objc?

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  • CodeMirror Dynamic Syntax Validation

    - by rawr
    Been trying to decide between using CodeMirror or Ace editor. I've been leaning towards CodeMirror, however there's one feature of Ace that I really like and that is how it does syntax validation. So as I'm typing there can appear a warning or error icon in the left gutter area beside the line number, and when I hover over it it gives me a little description. Is there any way to get this functionality in CodeMirror? Specifically, I'm using the css mode for CodeMirror. It'd also be nice to be able to add in my own custom validation. Thanks.

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  • Why does document.QuerySelectorAll return a StaticNodeList rather than a real Array?

    - by Kev
    It bugs me that I can't just do document.QuerySelectorAll(...).map(...) even in Firefox 3.6, and I still can't find an answer, so I thought I'd cross-post on SO the question from this blog: http://blowery.org/2008/08/29/yay-for-queryselectorall-boo-for-staticnodelist/ Does anyone know of a technical reason why you don't get an Array? Or why an SNL doesn't inherit from an Array in such a way that you could use map, concat, etc? (BTW if it's just one function you want, you can do something like NodeList.prototype.map = Array.prototype.map;...but again, why is this functionality (intentionally?) blocked in the first place?)

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  • Creating a blocked user intercepter in Grails

    - by UltraVi01
    I am working on a social site where users can block other users. Throughout the site --dozens of places, user information is displayed. For example, user comments, reply forms, online user list.. etc etc.. The problem is that given the high number of places user info is displayed, it's becoming very difficult to check each time if that user is blocked. For example: <g:each var="comment" in="${comments}"> <g:if test="!${loggedInUser.blockedUsers.find { it == comment.user}"> show comment </g:if> </g:each> Does Grails provide any functionality that would facilitate creating some kind of filter or intercepter where I could simply exclude blocked users when iterating lists, etc? If not, what would you suggest I do?

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  • Are there any way to link my program with Wine-compiled part?

    - by seas
    I am trying to use windows dll functionality in Linux. My current solution is a compilation of a separate wine application, that uses dll and transfer requests/responses between dll and main application over IPC. This works, but is a real overhead comparing to a simple dll calls. I see that wine-compiled program usually is a bootstrapping-script and some .so, which (according to file utility) is normal linux dynamically linked library. Are there any way to link that .so directly to my application? Are there any manual?

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  • Sharing base object with inheritance

    - by max
    I have class Base. I'd like to extend its functionality in a class Derived. I was planning to write: class Derived(Base): def __init__(self, base_arg1, base_arg2, derived_arg1, derived_arg2): super().__init__(base_arg1, base_arg2) # ... def derived_method1(self): # ... Sometimes I already have a Base instance, and I want to create a Derived instance based on it, i.e., a Derived instance that shares the Base object (doesn't re-create it from scratch). I thought I could write a static method to do that: b = Base(arg1, arg2) # very large object, expensive to create or copy d = Derived.from_base(b, derived_arg1, derived_arg2) # reuses existing b object but it seems impossible. Either I'm missing a way to make this work, or (more likely) I'm missing a very big reason why it can't be allowed to work. Can someone explain which one it is? [Of course, if I used composition rather than inheritance, this would all be easy to do. But I was hoping to avoid the delegation of all the Base methods to Derived through __getattr__.]

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  • How do I determine the video file size on youtube in Java?

    - by user1753343
    I am using the youtube-API to gather different information about videos. The only missing attribute until now is size. The API itself doesn't provide any functionality. I googled, but didn't found any solution. Indirect way My next idea was to get the path to the video-file itself and make a get-request. In the response-headers I could check for the file size. So I searched for "video / download / youtube / java". Some time ago youtube used get_video_info but this doesn't work today. I also found an application called JavaYoutubeDownloader but it seems VERY complicated for just getting the file size and it doesn't work either (just prints finish, without downloading anything). So is there a way to get the filesize of a video on youtube by using Java? If not, what would be a practical solution for this problem (a list of video_ids exists)?

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  • How to add ONLY system tray icon to application?

    - by badpanda
    I am developing an application that will be running behind the scenes in Windows and would like to put an icon in the system tray for troubleshooting purposes (simple way for users to tell if the app is running). There is no other UI for the application, and the icon does not need to have any functionality as of right now. All of the solutions I have found as of yet involve creating a form. I am wondering if there is a way to simply add a class to my current C# code that allows me to control the icon, rather than doing the whole 'make a form, set it to be invisible....' nonsense that seems to be the popular suggestion on the forums. Something along the lines of the way that UI control is done in say, Swing for Java. I would really appreciate any ideas! (Sorry if this is a n00b question...I haven't used C# before...) Thanks! badPanda

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  • Tabbar App with Paging between tabs.

    - by user558076
    Hi everyone, I've been struggling for about four days now trying to figure out how to implement the functionality I need. Basically I want to make a tabbar app that you can swipe back and forth between the tabs. Say I have 4 tabs. Would it make any sense just to create a scrollview that's 4 times as wide as the device, and load up 4 individual views side by side? Then I could use the tabbar delegate to simple tell which page to make visible? I could also use itemSelected to update the tab itself if a user swipes to a new page. does this make sense / is it a good idea? I just need a quick yes or no answer before I spend another whole day pursuing something doomed to failure. Thank you very much for your help...

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  • Creating a Non-Databound Report in Winforms

    - by Jon
    I am using Visual Studio 2008 and all the components that come with it as well as Infragisitics for Winforms. I need to design a label that will print to a label printer. None of the controls are databound and will most likely be set in code eg/Label.Text = "My Heading"; as there will be minimal information on the label. One piece of information is a barcode so I need the functionality to do that, I assume I can just set the font of the label to barcode and it will do its thing. Can I just add a Crystal Report to a form design it, set the label text properties in code, tell it what printer to print to and then call report.Print(); I've had a quick go and seems not as easy as I thought. Thanks

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  • Building Outline Data in Google Maps (Android)

    - by scotty.hoag
    I'm working on an Android project that focuses on knowing how close you are to buildings. I wanted to know if there is some way to extract the geographic information about the outlines of buildings out of the Google Maps API. Thanks. EDIT: The functionality I'm looking for is similar to what's going on in this app. (Click the link near the top of the page that says "View Live Sample".) http://resources.esri.com/help/9.3/arcgisserver/apis/javascript/gmaps/help/google_start.htm#topics/samples/identify_features.html

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  • Finding relative libraries when using symlinks to ruby executables

    - by dgtized
    Imagine you have an executable foo.rb, with libraries bar.rb layed out in the following manner: <root>/bin/foo.rb <root>/lib/bar.rb In the header of foo.rb you place the following require to bring in functionality in bar.rb: require File.dirname(__FILE__)+"../lib/bar.rb" This works fine so long as all calls to foo.rb are direct. If you put as say $HOME/project, and symlink foo.rb into $HOME/usr/bin, then __FILE__ resolves to $HOME/usr/bin/foo.rb, and is thus unable to locate bar.rb in relation to the dirname for foo.rb. I realize that packaging systems such as rubygems fix this by creating a namespace to search for the library, and that it is also possible to adjust the load_path using $: to include $HOME/project/lib, but it seems as if a more simple solution should exist. Has anyone had experience with this problem and found a useful solution or recipe?

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  • Multi "column" DataGridView C#

    - by Wesley
    I have a DataGridView that's bound to a DataSet. It has columns DateCreated, Weight, DateUsed. Those three columns do not take up much horizontal space on DataGridView that is nearly full screen. Is it possible to have those columns wrap back to the top if the view is wide enough to support a second group of those colums. So across the header it would read DateCreated, Weight, DateUsed, DateCreated, Weight, DateUsed. Then when a row is clicked, only 3 cells would be highlighted, not all six. Is there something that can provide this functionality?

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  • how to shift windows forms controls?

    - by Mike
    How can i get same functionality in windows forms as in the next example. When i have two links one beneath, and when i click first link a panel is visibleunder it and next link is shifted. When i click again the panel is invisible and second link shifted back. <script type="text/javascript"> function toggleDivState(divName) { var ctl = window.document.getElementById(divName); if (ctl.style.display == "none") ctl.style.display = ""; else ctl.style.display = "none"; } </script> <a href="javascript:toggleDivState('poll<%# Eval("ID") %>');"> <div style="display: none;" id="poll<%# Eval("ID") %>">

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  • Ruby: having callbacks on 'attr' objects

    - by JP
    Essentially I'm wondering how to place callbacks on objects in ruby, so that when an object is changed in anyway I can automatically trigger other changes: class MyClass attr_reader :proxy def proxy=(string_proxy = "") begin @proxy = URI.parse("http://"+((string_proxy.empty?) ? ENV['HTTP_PROXY'] : string_proxy)) @http = Net::HTTP::Proxy.new(@proxy.host,@proxy.port) rescue @http = Net::HTTP end end end m = MyClass.new m.proxy = "myproxy.com:8080" p m.proxy # => <URI: @host="myproxy.com" @port=8080> # However changing m.proxy will not change the @http variable, as proxy= is not being called. # Desired functionality: m.proxy = nil # Now @http.class is Net::HTTP, not Net::HTTP::Proxy

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  • [ASP.NET] How can I HTML-encode a string and use human-readable encoded tags (ex: &ecirc; instead of

    - by Beerdude26
    Greetings, I'm looking for a way to encode a string into HTML that uses human-readable tags such as &ecirc; (=ê). At the moment, I am using the HttpUtility.HtmlEncode() function, but it appears to return numbered tags instead of human-readable ones. For example: Dim str as string = HttpUtility;HtmlEncode("vente - en-tête") 'Expected: vente - en-t&ecirc;te 'Actually received: vente - en-t&#234;te Is there a setting or function in ASP.Net to encode a string into HTML resembling the first comment? EDIT: I am looking for this kind of functionality because the text is saved HTML-encoded in the database. The text comes from a bunch of MS Word documents that have been converted to HTML.

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