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  • ID generator with local static variable - thread-safe?

    - by Poseidon
    Will the following piece of code work as expected in a multi-threaded scenario? int getUniqueID() { static int ID=0; return ++ID; } It's not necessary that the IDs to be contiguous - even if it skips a value, it's fine. Can it be said that when this function returns, the value returned will be unique across all threads?

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  • jQuery UI 1.8.13 sudden error

    - by user837306
    We have been using Jquery from this link http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.13/jquery-ui.min.js for drag and drop. Suddenly we notice it is not working now and there is no code change done our side. We notice the error is pointing to these line and error is TypeError: a.curCSS is not a function? What will be solution to this problem? e&&e.call(i)},g)}):this._focus.apply(this,arguments)},scrollParent:function(){var g;g=a.browser.msie&&/(static|relative)/.test(this.css("position"))||/absolute/.test(this.css("position"))?this.parents().filter

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  • The remote host closed the connection. The error code is 0x80070057

    - by Jalpesh P. Vadgama
    While creating a PDF or any file with asp.net pages I was getting following error. Exception Type:System.Web.HttpException The remote host closed the connection. The error code is 0x80072746. at System.Web.Hosting.ISAPIWorkerRequestInProcForIIS6.FlushCore(Byte[] status, Byte[] header, Int32 keepConnected, Int32 totalBodySize, Int32 numBodyFragments, IntPtr[] bodyFragments, Int32[] bodyFragmentLengths, Int32 doneWithSession, Int32 finalStatus, Boolean& async) at System.Web.Hosting.ISAPIWorkerRequest.FlushCachedResponse(Boolean isFinal) at System.Web.Hosting.ISAPIWorkerRequest.FlushResponse(Boolean finalFlush) at System.Web.HttpResponse.Flush(Boolean finalFlush) at System.Web.HttpResponse.Flush() at System.Web.UI.HttpResponseWrapper.System.Web.UI.IHttpResponse.Flush() at System.Web.UI.PageRequestManager.RenderFormCallback(HtmlTextWriter writer, Control containerControl) at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) at System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) at System.Web.UI.HtmlControls.HtmlForm.RenderChildren(HtmlTextWriter writer) at System.Web.UI.HtmlControls.HtmlForm.Render(HtmlTextWriter output) at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) at System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) at System.Web.UI.HtmlControls.HtmlForm.RenderControl(HtmlTextWriter writer) at System.Web.UI.HtmlFormWrapper.System.Web.UI.IHtmlForm.RenderControl(HtmlTextWriter writer) at System.Web.UI.PageRequestManager.RenderPageCallback(HtmlTextWriter writer, Control pageControl) at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) at System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) at System.Web.UI.Page.Render(HtmlTextWriter writer) at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) at System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) at System.Web.UI.Control.RenderControl(HtmlTextWriter writer) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) Exception Type:System.Web.HttpException The remote host closed the connection. The error code is 0x80072746. at System.Web.Hosting.ISAPIWorkerRequestInProcForIIS6.FlushCore(Byte[] status, After searching and analyzing I have found that client was disconnected and still I am flushing the response which I am doing for creating PDF files from the stream. To fix this kind of error we can use Response.IsClientConnected property to check whether client is connected or not and then we can flush and end response from client. Here is the sample code to fix that problem. if (Response.IsClientConnected) { Response.Flush(); Response.End(); } That’s it Hope this will help you..Stay tuned for more.. Till that Happy Programming!! Technorati Tags: Exception,ASp.NET

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  • How to code UI / HUD in Entity System?

    - by Sylpheed
    I think I already got the idea of the Entity System inspired by Adam Martin (t-machine). I want to start using this for my next project. I already know the basic of Entity, Components, and Systems. My problem is how to handle UI / HUD. For example, a quest window, skill window, character info window, etc. How do you handle UI events (eg. pressing a button)? These are stuff that doesn't need to be processed every frame. Currently, I'm using MVC to code UI but I don't think that'll be compatible for Entity System. I've read that Entity System is embedded on a larger OOP. I don't know if UI is outside of ES or not. How do I approach this one?

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  • Data binding in web UI frameworks, what's the deal?

    - by c-smile
    I believe that most of modern Web frameworks that pretend to be MVC ones also has a notion of data binding in one form or another. Examples: AngularJS, EmberJS, KnockoutJS, etc. I am assuming that "data binding" is a declarative definition (oxymoron, no?) of live link between data (a.k.a. model) and its representation (a.k.a. view). With some transformers in between (a.k.a. controllers). I understand why declarativeness is kind of appealing but also understand that as usual it comes with the price. In particular: 1. Live binding is quite heavy, either with dirty watch (high CPU consumption) or with Object.observe() (high memory consumption with high CPU load in some scenarios). 2. There is a "frame" part in the framework word, means there are some boundaries/limits that can be hard to overcome if you need slightly more than it was designed for. Quite usual time split: 90% of features are made in 10% of project time. But 10% rest take 90% of project time. I suspect (a.k.a. educated guess) that those MVC things are not helping to implement more functionality in less time... If so their usage motivation is not quite clear. As an example: last week wanted to find virtual list idea/solution. Found one in vanilla JavaScript that is 120 LOC. Implementation of the same but in AngualrJS is about 420 LOC. Most of the code there seems like a fight with the framework itself... So is my question: what benefits that MVC stuff or data binding give us? Is it just a buzzword popular among project managers or they give us something useful. If later one then what exactly?

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  • Google I/O 2010 - GWT's UI overhaul

    Google I/O 2010 - GWT's UI overhaul Google I/O 2010 - GWT's UI overhaul: UiBinder, ClientBundle, and Layout Panels GWT 201 Joel Webber, Ray Ryan There have been some really huge improvements in GWT's UI fundamentals over the past year. We've introduced features such as UiBinder, ClientBundle, CssResource, and über layout panels that allow you to build fast UIs in a sane manner. Come see how fun/easy/fast it can be to use these technologies in harmony to overhaul your UI. For all I/O 2010 sessions, please go to code.google.com From: GoogleDevelopers Views: 9 1 ratings Time: 01:00:11 More in Science & Technology

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  • Thread safe GUI programming

    - by James
    I have been programming Java with swing for a couple of years now, and always accepted that GUI interactions had to happen on the Event Dispatch Thread. I recently started to use GTK+ for C applications and was unsurprised to find that GUI interactions had to be called on gtk_main. Similarly, I looked at SWT to see in what ways it was different to Swing and to see if it was worth using, and again found the UI thread idea, and I am sure that these 3 are not the only toolkits to use this model. I was wondering if there is a reason for this design i.e. what is the reason for keeping UI modifications isolated to a single thread. I can see why some modifications may cause issues (like modifying a list while it is being drawn), but I do not see why these concerns pass on to the user of the API. Is there a limit imposed by an operating system? Is there a good reason these concerns are not 'hidden' (i.e. some form of synchronization that is invisible to the user)? Is there any (even purely conceptual) way of creating a thread safe graphics library, or is such a thing actually impossible? I found this http://blogs.operationaldynamics.com/andrew/software/gnome-desktop/gtk-thread-awareness which seems to describe GTK differently to how I understood it (although my understanding was the same as many people's) How does this differ to other toolkits? Is it possible to implement this in Swing (as the EDT model does not actually prevent access from other threads, it just often leads to Exceptions)

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  • Logic / Render phases with a single thread

    - by DevilWithin
    The question I have may generate different opinions from different developers, but I'd still like to have an answer on this. Its all about the updating and rendering steps of the game loop, and their use under multi and single threaded environments. Currently, there is one thread running, which takes care of sequentially executing events , logic and rendering. Sometimes, the logic part may wish to change the game state to something else, and in between do some loading of files. The result is that the game hangs completely while loading, and then proceeds to normal rendering of the new state. To go around this, i could make another thread, do the loading there while the main thread renders a smooth loading animation, and then proceed normally. The real question is about if i don't create another thread. I could refresh the screen from the logic thread, and provide some basic loading screen, which could be not so smoothly updated while the files load. In fact, this approach is not loved by a lot of developers, as it scrambles render code in the logic step, which may cause problems of different sorts.. Hope its clear!

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  • How to do thread management in C++?

    - by Dipan Mehta
    We use pthread for thread management in C based systems. pthread is in general compilable by C++ compiler (like g++). However, what are the better ways of abstractions for threads in C++? Also, for making any system to be working in a multi-threaded system, it is also important to make thread safe. What are the standard libraries that requires alternative (installs) to be thread safe or are they unsafe for multi-threaded environments? Is smart pointers, templates require special measures to make it safe? What are the best practices for the thread managements in C++?

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  • Customizing The Fusion Applications Simplified UI (aka FUSE)

    - by Richard Bingham
    Everyone who has seen it is impressed by the new Simplified UI, providing self-service workers the ease-of-use that they expect from a modern web application. As always, people want and need to make small adjustments, especially in the Cloud, and thankfully even in its first release there is good support for this. The main features are: Configuring the branding and look-and-feel (known as a theme) of the Simplified UI. Adding you own custom announcements to the Simplified UI homepage. Using Page Composer to edit component properties, such as re-label text or hiding unwanted fields. Using MDS Sandboxes to manage groups of related customizations. Using Application Composer to adjust the fields available in certain Simplified UI pages. These are demonstrated in the video embedded below, available as part of our YouTube channel, as well as being documented in the extensibility guide. &amp;amp;amp;amp;lt;span id=&amp;amp;amp;amp;quot;XinhaEditingPostion&amp;amp;amp;amp;quot;&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/span&amp;amp;amp;amp;gt; As mentioned, this is the first release of this capability so if there is something you're stuck on please use our forum and we'll try to help, or if you have a requirement for a new Simplified UI customization, please add a comment below.

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  • Multithreaded game fails on SwapBuffers in render thread at exit

    - by user782220
    The render loop and windows message loop run on separate threads. The way the program exits is that after PostQuitMessage is called in WM_DESTROY the message loop thread signals the render loop thread to exit. As far as I can tell before the render loop thread can even process the signal it tries SwapBuffers and that fails. My question, is there something about how Windows processes WM_DESTROY and WM_QUIT, in maybe DefWindowProc that causes various objects associated with rendering to go away even though I haven't explicitly deleted anything? And that would explain why the rendering thread is making bad calls at exit?

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  • jQuery UI - Close Dialog When Clicked Outside

    - by Sonny
    I have a jQuery UI Dialog that gets displayed when specific elements are clicked. I would like to close the dialog if a click occurs anywhere other than on those triggering elements or the dialog itself. Here's the code for opening the dialog: $(document).ready(function() { var $field_hint = $('<div></div>') .dialog({ autoOpen: false, minHeight: 50, resizable: false, width: 375 }); $('.hint').click(function() { var $hint = $(this); $field_hint.html($hint.html()); $field_hint.dialog('option', 'position', [162, $hint.offset().top + 25]); $field_hint.dialog('option', 'title', $hint.siblings('label').html()); $field_hint.dialog('open'); }); /*$(document).click(function() { $field_hint.dialog('close'); });*/ }); If I uncomment the last part, the dialog never opens. I assume it's because the same click that opens the dialog is closing it again. Final Working Code $(document).ready(function() { var $field_hint = $('<div></div>') .dialog({ autoOpen: false, minHeight: 50, resizable: false, width: 375 }) .bind('clickoutside', function(e) { if (!$(e.target).filter('.hint').length) { $field_hint.dialog('close'); } }); $('.hint').click(function() { var $hint = $(this); $field_hint.html($hint.html()); $field_hint.dialog('option', 'position', [162, $hint.offset().top + 25]); $field_hint.dialog('option', 'title', $hint.siblings('label').html()); $field_hint.dialog('open'); }); });

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  • Populating array of input fields as alternate fields using jQuery UI datepicker

    - by Micor
    I am using jquery ui datepicker in order to populate start and end dates for multiple events on the same page, the number of events is dynamic and I need to post day, month and year as separate fields, so I have something like this: <input type="text" name="event[0].startDate" class="date"/> <input type="hidden" name="event[0].startDate_day" class="startDate_day" /> <input type="hidden" name="event[0].startDate_month" class="startDate_month" /> <input type="hidden" name="event[0].startDate_year" class="startDate_year" /> <input type="text" name="event[0].endDate" class="date"/> <input type="hidden" name="event[0].endDate_day" class="endDate_day" /> <input type="hidden" name="event[0].endDate_month" class="endDate_month" /> <input type="hidden" name="event[0].endDate_year" class="startDate_year" /> event[1]... event[2]... I started working on jQuery functionality and this is what I have so far, which will populate alternate fields for startDate by class, of course it will not do what I need because I need to populate by field name rather then class: $(".date").datepicker({ onClose: function(dateText,picker) { $('.startDate_month').val( dateText.split(/\//)[0] ); $('.startDate_day').val( dateText.split(/\//)[1] ); $('.startDate_year').val( dateText.split(/\//)[2] ); }}); I need help figuring out how can I get the name of the input field within datepicker function so the alternate field assignment done by that field name + _day, month, year so this function can work for all the events on the page, making function above look more like: $(".date").datepicker({ onClose: function(dateText,picker) { $('input[' + $name + '_month' + ']').val( dateText.split(/\//)[0] ); $('input[' + $name + '_day' + ']').val( dateText.split(/\//)[1] ); $('input[' + $name + '_year' + ']').val( dateText.split(/\//)[2] ); }}); Hope that makes sense :) Thanks

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  • jQuery UI - addClass removeClass - CSS values are stuck

    - by Jason D
    Hi, I'm trying to do a simple animation. You show the div. It animates correctly. You hide the div. Correct. You show the div again. It shows but there is no animation. It is stuck at the value of when you first interrupted it. So somehow the interpolation CSS that is happening during [add|remove]Class is getting stuck there. The second time around, the [add|remove]Class is actually running, but the css it's setting from the class is getting ignored (I think being overshadowed). How can I fix this WITHOUT resorting to .animate and hard-coded style values? The whole point was to put the animation end point in a css class. Thanks! <!doctype html> <style type="text/css"> div { width: 400px; height: 200px; } .green { background-color: green; } </style> <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js" type="text/javascript"></script> <script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/jquery-ui.min.js" type="text/javascript"></script> <script type="text/javascript"> $(function() { $('#show').bind({ click: function() { showAndRun() } }) $('#hide').bind({ click: function() { $('div').stop(true, false).fadeOut('slow') } }) function showAndRun() { function pulse() { $('div').removeClass('green', 2000, function() { $(this).addClass('green', 2000, pulse) }) } $('div').stop(true, false).hide().addClass('green').fadeIn('slow', pulse) } }) </script> <input id="show" type="button" value="show" /><input id="hide" type="button" value="hide" /> <div style="display: none;"></div>

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  • UI design in flash games

    - by anon
    This question is more UI/Design-ish than hard-core programming is. Background: I've been coding in VIM/C++/OpenGL for a long time. I've come to realize that this (VIM/C++/OpenGL) isn't the way to learn about programming fancy/cool-looking/futuristic UIs; and that the design of such UIs belongs more so in the artistic/designer world of Flash. Anyway, I currently have a machine with MacOSX. What software should I install? What book should I read to learn about the artistic/design side of these futuristic UIs? [It's okay if the tools to design them are mouse clicking + graphical rather than coding based]. Question: what software packages + books to read to learn about creating fancy-looking / futuristic UIs in flash? Thanks! EDIT: PS these questions seem to get closed frequently. If you're going to vote to close for "duplicate question"; atleast provide a link to the question (with an answer).

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  • Android - need UI help/advice

    - by Donal Rafferty
    I have been working on Android for the past couple of months getting to know how various components work. One area I am completely lacking in knowledge is any sort of User Interface or graphical interface creation. As an excercise I have been asked to break down the HTC call screen into what components it contains and rebuild as close as possible. Here is a picture of the HTC call screen: From my understanding the above UI has a custom title bar where "Meteor" and the call time appears. Then the main image in the middle block along with a text view showing the called party, in this case "Voice Mail" and the number. The bottom is then a custom view maybe with three custom buttons used within it. Would I be correct in my above assumptions? So the parts I should look into start programming are a custom title bar and a custom view with three custom buttons to place at the bottom? What layout would be reccomended? I hope this question is seen as relative to Stack Overflow, if it is not then I will delete it. Thanks in advance

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  • Follow tab's url in jquery ui tabs

    - by Aakash Chakravarthy
    Hello, I have jquery tabs like <ul id="tabsList"> <li><a href="#tab-1">Name 1</a></li> <li><a href="#tab-2">Name 2</a></li> <li><a href="http://www.google.com/">Name 3</a></li> </ul> <div id="tab-1">content 1</div> <div id="tab-2">content 2</div> the first two tabs load the respective divs. But the third one should go to google.com, instead it does nothing. It just adds http://example.com/index.html#ui-tabs-[object Object] to the url. I am developing a wordpress plugin and the admin page needs a tab interface. I tested this in a local server and not working update: i don't want to load google.com inside the page. It should open the webpage in new tab/window like ordinary links do.

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  • jquery ui 1.7 autocomplete show dialog on select

    - by Daniel S
    Hello, I am using an autocomplete widget, and would like a dialog to show when an item is selected. The dialog does show up, but I want a field in the dialog to receive focus when it opens. Here is what I have tried so far: //HTML <form action="#"> <p><input id="busca" /></p> </form> <div id="agregar" title="Agregar Parte"> <label for="cantidad">Cantidad:</label> <input name="cantidad" id="cantidad" size="3" /> </div> //jquery $(function(){ $("#agregar").dialog({ autoOpen: false, //also tried open: function(){$("#cantidad").focus()} } ); //.bind("dialogfocus", ... ) does not work either $("#agregar").bind("focus", function(){ $("#cantidad").focus(); }); $("#busca").autocomplete({ source: "/carrito/autocomplete/", minLength: 1, select: function(e, ui) { $("#agregar").dialog("open"); } }); }); I think autoselect's default behavior is still doing something as the autoselect widget receives focus after the dialog is shown. Any help would be greatly appreciated.

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