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• Change CulturalInfo after button click

  - by Bart

  i have multilingual asp.net site. there is masterpage and default.aspx in masterpage i put two buttons one to click when i want to change the language to english, second for polish. I want to change the language after click on these buttons (and all changes should appear automatically on the page) here is a code for both: protected void EnglishButton_Click(object sender, ImageClickEventArgs e) { string selectedLanguage = "en-US"; //Sets the cookie that is to be used by InitializeCulture() in content page HttpCookie cookie = new HttpCookie("CultureInfo"); cookie.Value = selectedLanguage; Response.Cookies.Add(cookie); Server.Transfer(Request.Path); } protected void PolishButton_Click(object sender, ImageClickEventArgs e) { string selectedLanguage = "pl-PL"; //Sets the cookie that is to be used by InitializeCulture() in content page HttpCookie cookie = new HttpCookie("CultureInfo"); cookie.Value = selectedLanguage; Response.Cookies.Add(cookie); Server.Transfer(Request.Path); } in default.aspx.cs i have InitializeCulture(): protected override void InitializeCulture() { HttpCookie cookie = Request.Cookies["CultureInfo"]; // if there is some value in cookie if (cookie != null && cookie.Value != null) { Thread.CurrentThread.CurrentCulture = CultureInfo.CreateSpecificCulture(cookie.Value); Thread.CurrentThread.CurrentUICulture = new CultureInfo(cookie.Value); } else // if none value has been sent by cookie, set default language { Thread.CurrentThread.CurrentCulture = CultureInfo.CreateSpecificCulture("pl-PL"); Thread.CurrentThread.CurrentUICulture = new CultureInfo("pl-PL"); } base.InitializeCulture(); } i added resource files and in one label i show actual culture: Welcome.Text = "Culture: " + System.Globalization.CultureInfo.CurrentCulture.ToString(); the problem is that when i run this app and click e.g. english button (default language is polish), there is no effect. if i click it second time or press F5, the changes are applies and in the label is Culture: en-US. the same happens if i want to change language back to polish (it works after second click (or one click and refresh)). What am i doing wrong?

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• JEE Filter is not being executed during <h:commandLink> request

  - by c0d3x

  Hi, I am working on a JEE application with facelets running in Tomcat 6. I wrote I Filter which works fine. Inside some facelet pages there are <h:commandLink> elements refering to another page inside the application and passing parameters to a managed bean. The refered page works on with the managed bean which got the parameter passed. <h:commandLink action="SingleArtikel.xhtml">Details <f:setPropertyActionListener target="#{artikelBackingBean.primaryKey}" value="${artikel.primaryKey}" /> </h:commandLink> Now when I click on such a link, the filter is not beeing called. The URL inside the browsers url text field does not change. The refered pages are structured like this: <ui:composition template="index.xhtml"> <ui:define name="content"> ...content... </ui:define> </ui:composition> It is included into a template "index.xhtml". Why is the filter not being executed on such a request? Why does the url not change? How does such a request work? Thanks in advance.

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• ASP.NET Chart Control errors in Event Viewer

  - by Richard Reddy

  Hi, I have been using the ASP.NET chart controls for a while on win2k3 (32bit) setups without any issue but have noticed that on our new win2k8 (64bit) box I am getting a warning message showing up in the event viewer from the chart control. In my web.config file I have the following tag telling the Chart Control where I can store the Temp Files: <add key="ChartImageHandler" value="storage=file;timeout=20;dir=c:\TempImageFiles\;" /> Below is the warning message produced by the control: Event code: 3005 Event message: An unhandled exception has occurred. Event time: 10/7/2009 2:40:03 PM Event time (UTC): 10/7/2009 2:40:03 PM Event ID: 237c3b208962429e8bbc5a48ffd177f0 Event sequence: 2860 Event occurrence: 26 Event detail code: 0 Application information: Application domain: /LM/W3SVC/2/ROOT-1-128993655360497729 Trust level: Full Application Virtual Path: / Application Path: C:\data\sites\mydomain.com\ Machine name: 231692-WEB Process information: Process ID: 4068 Process name: w3wp.exe Account name: NT AUTHORITY\NETWORK SERVICE Exception information: Exception type: ArgumentException Exception message: The image is not found. Request information: Request URL: http://www.mydomain.com/ChartImg.axd?i=chart%5F0%5F3.png&g=bccc8aa11abb470980c60e8cf1e71e15 Request path: /ChartImg.axd User host address: my domain ip User: Is authenticated: False Authentication Type: Thread account name: NT AUTHORITY\NETWORK SERVICE Thread information: Thread ID: 7 Thread account name: NT AUTHORITY\NETWORK SERVICE Is impersonating: False Stack trace: at System.Web.UI.DataVisualization.Charting.ChartHttpHandler.ProcessSavedChartImage(HttpContext context) at System.Web.UI.DataVisualization.Charting.ChartHttpHandler.System.Web.IHttpHandler.ProcessRequest(HttpContext context) at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) It's worth pointing out that ALL of the chart images are displayed correctly on the screen so I'm not sure when/where the image not found error is being caused. Is this a 64bit issue? Thanks, Rich

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• Need help with creating complex UITableView items (like the Settings app).

  - by Craig

  I hoping to create a custom Settings view, similar to the Settings application, but with more control over the UI and access to some settings (i need to lock some of the settings). Obvously, there are a variety of UI elements mixed in each row of application's UITableView. For example, the 'Airplane Mode' setting shows a UISwitch, while the 'Wi-Fi' setting has a text value adjacent to the disclosure symbol (''). Further complicating matters, is the grouping of these settings. I have some general questions about the approach I should take: Seems like i need to save the name of the setting, its current value, its grouping, and the type of UI element(s) needed to modify its value. i would like to make use [NSUserDefault standardUserDefaults], but not have these settings appear in the Settings application. I'm guessing that I will need to create my own settings-persistence class. is it better to build each one of these complex UI-element combinations in code or to create a series of custom views based on the UITableViewCell and load the appropriate one? i'm guessing the latter. some of the setting require that i load another view to select its value. assuming that the application is based on the Utility pattern, should the SettingsView manage the navigation stack, rather than having the app delegate do so? Thanks for your time and comments. Craig Buchanan

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• Why I cannot add a JPanel to JFrame?

  - by Roman

  Here is the code: import javax.swing.SwingUtilities; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JLabel; import java.awt.event.*; import java.awt.*; public class GameWindow { private String[] players; private JFrame frame; // Constructor. public GameWindow(String[] players) { this.players = players; } // Start the window in the EDT. public void start() { SwingUtilities.invokeLater(new Runnable() { public void run() { showWindow(); controller.start(); } }); } // Defines the general properties of and starts the window. public void showWindow() { frame = new JFrame("Game"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setSize(600,400); frame.setVisible(true); } // The thread controlling changes of panels in the main window. private Thread controller = new Thread() { public void run() { frame.add(generatePartnerSelectionPanel()); frame.invalidate(); frame.validate(); } }; // Generate the panel for the selection of a partner. private JPanel generatePartnerSelectionPanel() { JPanel panel = new JPanel(); panel.add(new JLabel("Pleas select a partner:")); return panel; } } I should see "Pleas select the partner" and I don't. Why? I suppose that it's because I do not see frame from the run method of the Thread.

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• Accessing class member variables inside a BackgroundWorker's DoWork event handler, and other Backgro

  - by Justin

  Question 1 In the DoWork event handler of a BackgroundWorker, is it safe to access (for both reading and writing) member variables of the class that contains the BackgroundWorker? Is it safe to access other variables that are not declared inside the DoWork event handler itself? Obviously DoWork should not be accessing any UI objects of, say, a WinForms application, as the UI should only be updated from the UI thread. But what about accessing other (not UI-related) member variables? The reason why I ask is that I've seen the occasional comment come up while Googling saying that accessing member variables is not allowed. The only example I can find at the moment is a comment on this MSDN page, which says: Note, that the BGW can cause exceptions if it attempts to access or modify class level variables. All data must be passed to it by delegates and events. And also: NEVER. NEVER. Never try to reference variables not declared inside of DoWork. It may seem to work at times, but in reality you are just getting lucky. As far as I know, MSDN itself does not document any restrictions of this kind (although if I'm wrong, I'd appreciate a link). But comments like these do seem to pop up every now and again. (Of course if DoWork does access/modify a member variable that could be accessed/modified by the main thread at the same time, it is necessary to synchronise access to that field, eg by using a locking object. But the above quotes seem to require a blanket ban of accessing member variables, rather than just synchronising access!) Question 2 To make this into a more general question, are there any other (not documented?) restrictions that users of the BackgroundWorker should be aware of, aside from the above? Any "best practices", perhaps?

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• Running another process without GUI freezing

  - by Adam

  I'm having trouble getting my GUI to appear and not freeze while running (and waiting for) an outside process. In this case, drivers.exe is a very simply program where the user simply clicks "OK". So whenever I click OK, it exits. I am trying to simply make my status strip count numbers up (really fast) as drivers.exe is executing. But in practice, my GUI never appears at all until drivers.exe exits. private void run_drivers() { Console.WriteLine("Start Driver"); int driver_timeout_in_minutes = 20; System.Diagnostics.Process driverproc = System.Diagnostics.Process.Start(Application.StartupPath + "\\" + "drivers.exe"); driverproc.WaitForExit(driver_timeout_in_minutes * 1000 * 60); //uses milliseconds, we must convert } private void Form1_Load(object sender, EventArgs e) { ThreadStart worker = new ThreadStart(run_drivers); Console.WriteLine("Main - Creating worker thread"); toolStripStatusLabel1.Text = "hi"; Thread t = new Thread(worker); t.IsBackground = true; t.Start(); Console.WriteLine("Main - Have requested the start of worker thread"); int i = 0; while (t.IsAlive) { i++; toolStripStatusLabel1.Text = i.ToString(); } Console.WriteLine("Dead"); }

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• Winforms: How to display a "loading" form?

  - by Martijn

  I have a grid and when a row is double clicked a form is loaded. However a lot of data must be loaded, so I'd like to display a simple form with the text 'loading, please wait..'. And when all loading is finished, the form must disappear. This is what I have right now, but it doesn't work: Code that invokes the form with lots of data: FormWithLotData form = new FormWithLotData(); form.ShowDialog(this); Constructor of FormWithLotData: // Show load form FormIsLoading frm = new FormIsLoading(); _CloseLoadForm closeForm = new _CloseLoadForm(frm.Close); System.Threading.Thread thread = new System.Threading.Thread(frm.Show); thread.Start(); InitializeComponent(); this.Visible = false; LoadAllData(); this.Visible = true; // Close load form Invoke(closeForm); Hope you can help me out. EDIT: I'd like to show an animated gif on the loading form.

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• Set Server Side OnClick() event Programmatically

  - by Corey O.

  I am looking for a way to programmatically set the OnClick event handler for a TableCell object. The ASP equivalent of what I'm trying to do will look like this: <asp:TableCell OnClick="clickHandler" runat="server">Click Me!</asp:TableCell> In the above example, "clickHandler" is a server-side function defined in the .cs CodeBehind. public virtual void clickHandler(object sender, EventArgs args) {...} However, for my situation, this TableCell object needs to be created dynamically, so setting it in an ASP tag is not an option. I am trying to do something like the following in the CodeBehind: System.Web.UI.WebControls.TableRow row = new System.Web.UI.WebControls.TableRow(); System.Web.UI.WebControls.TableCell cell = new System.Web.UI.WebControls.TableCell(); cell.Text = "Click Me!"; cell.Attributes.Add("onClick", "clickHandler"); row.Cells.Add(cell); Unfortunately, in this situation: cell.Attributes.Add("onClick", "clickHandler"); the "clickHandler" only works as a client-side javascript function. What I'm looking for is a way to link the server-side clickHandler() function, defined in the .cs CodeBehind, to this table cell. After an afternoon of searching, I have been unable to come up with a working solution. Thanks in advance for any help.

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• PyQt4: Hide widget and resize window

  - by masterLoki

  Hi everyone: I'm working with several widgets but the solution just won't come out. What I have is a series of buttons in series of QHBoxLayouts. Some buttons are hidden by default, but they will appear when needed. To solve space issues, all buttons have a minimum and maximum size so they always look well packed. Also I have a QTextEdit, visible by default, which is in a QVBoxLayout with the QHBoxLayout that hold the buttons So the problem is this: When I hide the QTextEdit and show the other buttons, the window won't resize. After searching I found that using self.ui.layout().setSizeConstraint(QtGui.QLayout.SetFixedSize) will do the trick, but the problem is that it takes the maximum size from all widgets, therefore I end a huge window. Doing self.ui.layout().setSizeConstraint(QtGui.QLayout.SetMinAndMaxSize) won't resize the window I already tried using self.ui.resize(0,0), and when doing a self.ui.layout().update() I got False (which I find odd, http://doc.trolltech.com/4.6/qlayout.html#activate), and also tried to override sizeHint() but it keeps using the max size for all widgets. Is there a way to resize the window and while taking care of the min and max size of a widget? Thanks in advance

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• DRY Authenticated Tasks in Cocoa (with distributed objects)

  - by arbales

  I'm kind of surprise/infuriated that the only way for me to run an authenticated task, like perhaps sudo gem install shi*t, is to make a tool with pre-written code. I'm writing a MacRuby application, which doesn't seem to expose the KAuthorization* constants/methods. So.. I learned Cocoa and Objective-C. My application creates a object, serves it and calls the a tool that elevates itself and then performs a selector on a distributed object (in the tool's thread). I hoped that the distributed object's methods would evaluated inside the tool, so I could use delegation to create "privileged" tasks. If this won't work, don't try to save it, I just want a DRY/cocoa solution. AuthHelper.m //AuthorizationExecuteWithPrivileges of this. AuthResponder* my_responder = [AuthResponder sharedResponder]; // Gets the proxy object (and it's delegate) NSString *selector = [NSString stringWithUTF8String:argv[3]]; NSLog(@"Performing selector: %@", selector); setuid(0); if ([[my_responder delegate] respondsToSelector:NSSelectorFromString(selector)]){ [[my_responder delegate] performSelectorOnMainThread:NSSelectorFromString(selector) withObject:nil waitUntilDone:YES]; } RandomController.m - (void)awakeFromNib { helperToolPath = [[[NSBundle mainBundle] resourcePath] stringByAppendingString:@"/AuthHelper"]; delegatePath = [[[NSBundle mainBundle] resourcePath] stringByAppendingString:@"/ABExtensions.rb"]; AuthResponder* my_responder = [AuthResponder initAsService]; [my_responder setDelegate:self]; } -(oneway void)install_gems{ NSArray *args = [NSArray arrayWithObjects: @"gem", @"install", @"sinatra", nil]; [NSTask launchedTaskWithLaunchPath:@"/usr/bin/sudo" arguments:args]; NSLog(@"Ran AuthResponder.delegate.install_gems"); // This prints. } ... other privileges tasks. "sudo gem update --system" for one. I'm guessing the proxy object is performing the selector in it's own thread, but I want the current (privileged thread) to do it so I can use sudo. Can I force the distributed object to evaluate the selector on the tool's thread? How else can I accomplish this dryly/cocoaly?

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• Rails model relations depending on count of nested relations

  - by Lowgain

  I am putting together a messaging system for a rails app I am working on. I am building it in a similar fashion to facebook's system, so messages are grouped into threads, etc. My related models are: MsgThread - main container of a thread Message - each message/reply in thread Recipience - ties to user to define which users should subscribe to this thread Read - determines whether or not a user has read a specific message My relationships look like class User < ActiveRecord::Base #stuff... has_many :msg_threads, :foreign_key => 'originator_id' #threads the user has started has_many :recipiences has_many :subscribed_threads, :through => :recipiences, :source => :msg_thread #threads the user is subscribed to end class MsgThread < ActiveRecord::Base has_many :messages has_many :recipiences belongs_to :originator, :class_name => "User", :foreign_key => "originator_id" end class Recipience < ActiveRecord::Base belongs_to :user belongs_to :msg_thread end class Message < ActiveRecord::Base belongs_to :msg_thread belongs_to :author, :class_name => "User", :foreign_key => "author_id" end class Read < ActiveRecord::Base belongs_to :user belongs_to :message end I'd like to create a new selector in the user sort of like: has_many :updated_threads, :through => :recipiencies, :source => :msg_thread, :conditions => {THREAD CONTAINS MESSAGES WHICH ARE UNREAD (have no 'read' models tying a user to a message)} I was thinking of either writing a long condition with multiple joins, or possibly writing giving the model an updated_threads method to return this, but I'd like to see if there is an easier way first. Any ideas? Also, if there is something fundamentally wrong with my structure for this functionality let me know! Thanks!!

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• Why do i get exc bad access in cases when object is not nil?

  - by DixieFlatline

  I have an app that receives remote notifications. My view controller that is shown after push has a tableview. App crashes very randomly (1 in 20 tries) at line setting frame: if (!myTableView) { NSLog(@"self.myTableView is nil"); } myTableView.frame=CGRectMake(0, 70, 320, 376); This only happens when i open the app, then open some other apps and then receive the push notification. I guess it has something to do with memory. I use ARC (ios 5). The strange thing is that nslog is not displayed, so tableview is not nil. Crash log: Exception Type: EXC_BAD_ACCESS (SIGSEGV) Exception Codes: KERN_INVALID_ADDRESS at 0x522d580c Crashed Thread: 0 Thread 0 name: Dispatch queue: com.apple.main-thread Thread 0 Crashed: 0 libobjc.A.dylib 0x352b1f7e objc_msgSend + 22 1 Foundation 0x37dc174c NSKVOPendingNotificationCreate + 216 2 Foundation 0x37dc1652 NSKeyValuePushPendingNotificationPerThread + 62 3 Foundation 0x37db3744 NSKeyValueWillChange + 408 4 Foundation 0x37d8a848 -[NSObject(NSKeyValueObserverNotification) willChangeValueForKey:] + 176 5 Foundation 0x37e0ca14 _NSSetPointValueAndNotify + 76 6 UIKit 0x312af25a -[UIScrollView(Static) _adjustContentOffsetIfNecessary] + 1890 7 UIKit 0x312cca54 -[UIScrollView setFrame:] + 548 8 UIKit 0x312cc802 -[UITableView setFrame:] + 182 9 POViO 0x000913cc -[FeedVC viewWillAppear:] (FeedVC.m:303) Dealloc is not called because it is not logged: - (void)dealloc { NSLog(@"dealloc"); }

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• submit remote form with prototype

  - by badnaam

  I have a remote form like this and a checkbox in it. When I select or deselect the checkbox I would like to 1 - set the value of a hidden field 2 - ajax submit this form to its designated url. I tried $('search_form').onsubmit(), but I get an error saying onsubmit is not a function. Using prototype. Whats the best way to do this? <form onsubmit="new Ajax.Request('/searches/search_set?stype=1', {asynchronous:true, evalScripts:true, parameters:Form.serialize(this)}); return false;" method="post" id="new_search" class="new_search" action="/searches/search_set?stype=1"><div style="margin: 0pt; padding: 0pt; display: inline;"><input type="hidden" value="3TWSyMsZXI0nltz7zHAxuj1KX=" name="authenticity_token"></div> <a onclick="setSubmit(this);" href="#" class="submit-link-button fg-button ui-state-default fg-button-icon-left ui-corner-all" id="search_submit"><span class="ui-icon ui-icon-search"></span>'Search'</a> </div> <input type="checkbox" value="Energy" onclick="refreshResults(this);" name="search[conditions][article_tag][0]" id="search_conditions_article_tag_0">

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• Why does my ActivePerl program report 'Sorry. Ran out of threads'?

  - by Zaid

  Tom Christiansen's example code (à la perlthrtut) is a recursive, threaded implementation of finding and printing all prime numbers between 3 and 1000. Below is a mildly adapted version of the script #!/usr/bin/perl # adapted from prime-pthread, courtesy of Tom Christiansen use strict; use warnings; use threads; use Thread::Queue; sub check_prime { my ($upstream,$cur_prime) = @_; my $child; my $downstream = Thread::Queue->new; while (my $num = $upstream->dequeue) { next unless ($num % $cur_prime); if ($child) { $downstream->enqueue($num); } else { $child = threads->create(\&check_prime, $downstream, $num); if ($child) { print "This is thread ",$child->tid,". Found prime: $num\n"; } else { warn "Sorry. Ran out of threads.\n"; last; } } } if ($child) { $downstream->enqueue(undef); $child->join; } } my $stream = Thread::Queue->new(3..shift,undef); check_prime($stream,2); When run on my machine (under ActiveState & Win32), the code was capable of spawning only 118 threads (last prime number found: 653) before terminating with a 'Sorry. Ran out of threads' warning. In trying to figure out why I was limited to the number of threads I could create, I replaced the use threads; line with use threads (stack_size => 1);. The resultant code happily dealt with churning out 2000+ threads. Can anyone explain this behavior?

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• Crash on iOS when system purges memory and closes a UIViewController

  - by Amiramix

  My application is crashing when one of the views is purged from memory because of low-memory condition. At least this is what I understand from the crashlog. It happens on numerous screens but only when opening a Facebook dialog (using the Facebook SDK). Basically, looks like the system sometimes runs out of memory when we need to present a Facebook dialog (e.g. to let user post something on the Facebook timeline). Date/Time: 2012-03-14 19:47:33.819 +0000 OS Version: iPhone OS 5.1 (9B176) Report Version: 104 Exception Type: EXC_BAD_ACCESS (SIGSEGV) Exception Codes: KERN_INVALID_ADDRESS at 0x30000008 Crashed Thread: 0 Thread 0 name: Dispatch queue: com.apple.main-thread Thread 0 Crashed: 0 libobjc.A.dylib 0x30f2bf78 objc_msgSend + 16 1 MyApp 0x00003c0e -LTBaseViewController viewDidUnload (LTBaseViewController.m:145) 2 MyApp 0x00004ea2 -LTBaseTableViewController viewDidUnload (LTBaseTableViewController.m:90) 3 UIKit 0x33766bd8 -[UIViewController unloadViewForced:] + 244 4 UIKit 0x338ae492 -[UIViewController purgeMemoryForReason:] + 58 5 Foundation 0x3071a4f8 __57-NSNotificationCenter addObserver:selector:name:object:_block_invoke_0 + 12 6 CoreFoundation 0x30e95540 ___CFXNotificationPost_block_invoke_0 + 64 7 CoreFoundation 0x30e21090 _CFXNotificationPost + 1400 8 Foundation 0x3068e3e4 -NSNotificationCenter postNotificationName:object:userInfo: + 60 9 Foundation 0x3068fc14 -NSNotificationCenter postNotificationName:object: + 24 10 UIKit 0x3387926a -UIApplication _performMemoryWarning + 74 11 UIKit 0x33879364 -UIApplication _receivedMemoryNotification + 168 12 libdispatch.dylib 0x36a12252 _dispatch_source_invoke + 510 13 libdispatch.dylib 0x36a0fb1e _dispatch_queue_invoke$VARIANT$up + 42 14 libdispatch.dylib 0x36a0fe64 _dispatch_main_queue_callback_4CF$VARIANT$up + 152 15 CoreFoundation 0x30e9c2a6 __CFRunLoopRun + 1262 16 CoreFoundation 0x30e1f49e CFRunLoopRunSpecific + 294 17 CoreFoundation 0x30e1f366 CFRunLoopRunInMode + 98 18 GraphicsServices 0x33fb6432 GSEventRunModal + 130 19 UIKit 0x336f5e76 UIApplicationMain + 1074 20 MyApp 0x00004818 main (main.m:16) 21 MyApp 0x000023b4 0x1000 + 5044 I checked and there are almost no memory leaks, e.g. when testing the app for an hour the total memory leaked was around 2-3Kb caused by some string-copying libraries. So I don't believe this is caused by the application. I guess that when the phone is not restarted for some time there are applications running in the background and when using Facebook SDK the memory becomes a problem and the system tries to recover the memory from random applications, including my application. My question is, how can I prevent this crash from happening? How should I handle unloadViewForced on a view controller to make the app more robust in low-memory conditions? And lastly, am I right that this crashlog suggests the crash occurred because the system tried to free memory and my application didn't handle it properly? Any help greatly appreciated.

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• jQuery validate plugin against custom jQueryUI datePickers

  - by Enrique

  I have some datePickers I've customized these so they show only month and year This is the code to create them jQuery("input[name*='fechauso']").each(function() { jQuery(this).datepicker({ changeMonth: true, changeYear: true, showButtonPanel: true, dateFormat: 'MM yy', constrainInput: true, showOn: 'button', buttonText: 'Seleccionar...', onClose: function(dateText, inst) { var month = jQuery("#ui-datepicker-div .ui-datepicker-month :selected").val(); var year = jQuery("#ui-datepicker-div .ui-datepicker-year :selected").val(); jQuery(this).datepicker('setDate', new Date(year, month, 1)); } }); }); Now I've added a custom validator method (using plugin) to check this: If user didn't select a date using the button, field is empty, so the custom validator method should fire. This doesn't happen. Here is the custom validate method jQuery.validator.addMethod("isEmpty", function(value, element) { return (value == ''); }, "Must select a date with the button besides control"); jQuery("#ct_2_fechauso").rules("add", { required: "#campotilde_psico:checked", isEmpty: true }); The problem is that even if I select a date, it always ask me to select a date again. datePicker fields should be readonly

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• Create a menu in a perspective in Eclipse

  - by Krt_Malta

  Hi. I am developing an Eclipse plug-in and I'd like to associate a new menu (at the top of the screen along with File, Edit etc) with a perspective I'm creating. I did the menu ok but it is being displayed even in other perspectives. How can I associate it only with my perspective? This is the code I am using in plugin.xml: <plugin> <extension point="org.eclipse.ui.perspectives"> <perspective class="org.eclipse.ui.articles.perspective.API_Development" id="org.eclipse.ui.articles.perspective.API_Development" name="API Development"> </perspective> </extension> <extension point="org.eclipse.ui.actionSets"> <actionSet label="Sample Action Set" visible="true" id="API_Development_Menu.actionSet"> <menu label="API Development" id="sampleMenu"> <separator name="sampleGroup"> </separator> </menu> </actionSet> </extension> </plugin> Thanks and regards, Kurt

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• Base class deleted before subclass during python __del__ processing

  - by Oddthinking

  Context I am aware that if I ask a question about Python destructors, the standard argument will be to use contexts instead. Let me start by explaining why I am not doing that. I am writing a subclass to logging.Handler. When an instance is closed, it posts a sentinel value to a Queue.Queue. If it doesn't, a second thread will be left running forever, waiting for Queue.Queue.get() to complete. I am writing this with other developers in mind, so I don't want a failure to call close() on a handler object to cause the program to hang. Therefore, I am adding a check in __del__() to ensure the object was closed properly. I understand circular references may cause it to fail in some circumstances. There's not a lot I can do about that. Problem Here is some simple example code: explicit_delete = True class Base: def __del__(self): print "Base class cleaning up." class Sub(Base): def __del__(self): print "Sub-class cleaning up." Base.__del__(self) x = Sub() if explicit_delete: del x print "End of thread" When I run this I get, as expected: Sub-class cleaning up. Base class cleaning up. End of thread If I set explicit_delete to False in the first line, I get: End of thread Sub-class cleaning up. Exception AttributeError: "'NoneType' object has no attribute '__del__'" in <bound method Sub.__del__ of <__main__.Sub instance at 0x00F0B698>> ignored It seems the definition of Base is removed before the x._del_() is called. The Python Documentation on _del_() warns that the subclass needs to call the base-class to get a clean deletion, but here that appears to be impossible. Can you see where I made a bad step?

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• Android ANR keyDispatchingTimedOut Error while continuous tapping on screen.

  - by user519846

  Hi All, I am getting Application Not Responding (ANR) dialog while continuous tapping on the screen. There is no view on the screen where i am tapping. Frequency of this issue is less but still i am not able to remove it completely. Here i am attaching the log what i caught during this error. ERROR/ActivityManager(1322): ANR in com.test.mj.and.ui (com.test.mj.and.ui/.TermsAndCondActivity) ERROR/ActivityManager(1322): Reason: keyDispatchingTimedOut ERROR/ActivityManager(1322): Parent: com.test.mj.and.ui/.SplashActivity ERROR/ActivityManager(1322): Load: 6.59 / 6.37 / 5.21 ERROR/ActivityManager(1322): CPU usage from 11430ms to 2196ms ago: ERROR/ActivityManager(1322): rtal.mj.and.ui: 9% = 7% user + 1% kernel / faults: 649 minor ERROR/ActivityManager(1322): system_server: 4% = 2% user + 2% kernel / faults: 10 minor ERROR/ActivityManager(1322): logcat: 3% = 1% user + 1% kernel / faults: 675 minor 1 major ERROR/ActivityManager(1322): synaptics_wq: 1% = 0% user + 1% kernel ERROR/ActivityManager(1322): ami304d: 1% = 0% user + 0% kernel ERROR/ActivityManager(1322): .process.lghome: 1% = 0% user + 0% kernel / faults: 47 minor ERROR/ActivityManager(1322): sync_supers: 0% = 0% user + 0% kernel ERROR/ActivityManager(1322): droid.DunServer: 0% = 0% user + 0% kernel / faults: 6 minor ERROR/ActivityManager(1322): events/0: 0% = 0% user + 0% kernel ERROR/ActivityManager(1322): oid.inputmethod: 0% = 0% user + 0% kernel / faults: 2 minor ERROR/ActivityManager(1322): m.android.phone: 0% = 0% user + 0% kernel / faults: 2 minor ERROR/ActivityManager(1322): ndroid.settings: 0% = 0% user + 0% kernel ERROR/ActivityManager(1322): sh: 0% = 0% user + 0% kernel / faults: 110 minor ERROR/ActivityManager(1322): -flush-179:0: 0% = 0% user + 0% kernel ERROR/ActivityManager(1322): TOTAL: 19% = 13% user + 6% kernel WARN/WindowManager(1322): Continuing to wait for key to be dispatched WARN/WindowManager(1322): No window to dispatch pointer action 1 Can anyone please help me to solve this issue? Thanks in advance.

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• PyQt4: Scrollbar doesn't show in scrollarea when resizing dockWidget

  - by Whospal

  I created a python test program (Test_InfoPanel.py) that has MainWindow with dockWidget, and within it, a tabWidget with scrollArea widget. However, when I resize the MainWindow, the vertical scrollbar doesn't auto-appear when the Similarly, when I undock the dockWidget & resize, the vertical scrollbar doesn't auto-appear. Pls help! Test Program (Test_InfoPanel.py): #!/usr/bin/env python # Filename: Test_InfoPanel.py # Date: 2012-Sep-18 ''' This program test the scrollarea to show scrollbars for the InfoPanel_UI. ''' import sys from PyQt4 import QtCore, QtGui if __name__ == "__main__": import sys app = QtGui.QApplication(sys.argv) # Look and feel changed to 'Cleanlooks'. app.setStyle('Cleanlooks') from InfoPanel_UI import Ui_MainWindow_InfoPanel AppWindow = QtGui.QMainWindow() ui = Ui_MainWindow_InfoPanel() ui.setupUi(AppWindow) ui.tabWidget_Info_Panel.setCurrentWidget(ui.scrollArea_Info_Panel) AppWindow.show() sys.exit(app.exec_()) Generated *.ui script (InfoPanel_UI.py): # -*- coding: utf-8 -*- # Form implementation generated from reading ui file 'InfoPanel.ui' # # Created: Wed Sep 19 13:11:06 2012 # by: PyQt4 UI code generator 4.9.4 # # WARNING! All changes made in this file will be lost! from PyQt4 import QtCore, QtGui try: _fromUtf8 = QtCore.QString.fromUtf8 except AttributeError: _fromUtf8 = lambda s: s class Ui_MainWindow_InfoPanel(object): def setupUi(self, MainWindow_InfoPanel): MainWindow_InfoPanel.setObjectName(_fromUtf8("MainWindow_InfoPanel")) MainWindow_InfoPanel.resize(602, 263) MainWindow_InfoPanel.setDocumentMode(False) self.centralwidget = QtGui.QWidget(MainWindow_InfoPanel) self.centralwidget.setObjectName(_fromUtf8("centralwidget")) MainWindow_InfoPanel.setCentralWidget(self.centralwidget) self.statusbar = QtGui.QStatusBar(MainWindow_InfoPanel) self.statusbar.setObjectName(_fromUtf8("statusbar")) MainWindow_InfoPanel.setStatusBar(self.statusbar) self.dockWidget_Info_Panel = QtGui.QDockWidget(MainWindow_InfoPanel) self.dockWidget_Info_Panel.setMinimumSize(QtCore.QSize(300, 140)) font = QtGui.QFont() font.setBold(True) font.setItalic(True) font.setWeight(75) self.dockWidget_Info_Panel.setFont(font) self.dockWidget_Info_Panel.setLayoutDirection(QtCore.Qt.LeftToRight) self.dockWidget_Info_Panel.setAllowedAreas(QtCore.Qt.LeftDockWidgetArea|QtCore.Qt.RightDockWidgetArea) self.dockWidget_Info_Panel.setObjectName(_fromUtf8("dockWidget_Info_Panel")) self.dockWidgetContents_Info_Panel = QtGui.QWidget() self.dockWidgetContents_Info_Panel.setObjectName(_fromUtf8("dockWidgetContents_Info_Panel")) self.tabWidget_Info_Panel = QtGui.QTabWidget(self.dockWidgetContents_Info_Panel) self.tabWidget_Info_Panel.setGeometry(QtCore.QRect(0, 0, 300, 215)) font = QtGui.QFont() font.setBold(False) font.setItalic(False) font.setWeight(50) self.tabWidget_Info_Panel.setFont(font) self.tabWidget_Info_Panel.setObjectName(_fromUtf8("tabWidget_Info_Panel")) self.tab_1 = QtGui.QWidget() self.tab_1.setObjectName(_fromUtf8("tab_1")) self.scrollArea_Info_Panel = QtGui.QScrollArea(self.tab_1) self.scrollArea_Info_Panel.setGeometry(QtCore.QRect(9, 9, 271, 171)) self.scrollArea_Info_Panel.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAsNeeded) self.scrollArea_Info_Panel.setWidgetResizable(True) self.scrollArea_Info_Panel.setObjectName(_fromUtf8("scrollArea_Info_Panel")) self.scrollAreaWidgetContents = QtGui.QWidget() self.scrollAreaWidgetContents.setGeometry(QtCore.QRect(0, 0, 269, 169)) self.scrollAreaWidgetContents.setObjectName(_fromUtf8("scrollAreaWidgetContents")) self.frame_Info_Panel = QtGui.QFrame(self.scrollAreaWidgetContents) self.frame_Info_Panel.setGeometry(QtCore.QRect(0, 0, 261, 161)) self.frame_Info_Panel.setObjectName(_fromUtf8("frame_Info_Panel")) self.label_Eqpt_Model = QtGui.QLabel(self.frame_Info_Panel) self.label_Eqpt_Model.setGeometry(QtCore.QRect(10, 10, 111, 27)) self.label_Eqpt_Model.setObjectName(_fromUtf8("label_Eqpt_Model")) self.lineEdit_Eqpt_Model = QtGui.QLineEdit(self.frame_Info_Panel) self.lineEdit_Eqpt_Model.setEnabled(False) self.lineEdit_Eqpt_Model.setGeometry(QtCore.QRect(120, 10, 111, 27)) palette = QtGui.QPalette() brush = QtGui.QBrush(QtGui.QColor(60, 60, 60)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.Text, brush) brush = QtGui.QBrush(QtGui.QColor(60, 60, 60)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.Text, brush) brush = QtGui.QBrush(QtGui.QColor(0, 0, 127)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.Text, brush) self.lineEdit_Eqpt_Model.setPalette(palette) self.lineEdit_Eqpt_Model.setObjectName(_fromUtf8("lineEdit_Eqpt_Model")) self.label_State = QtGui.QLabel(self.frame_Info_Panel) self.label_State.setGeometry(QtCore.QRect(10, 40, 111, 27)) self.label_State.setObjectName(_fromUtf8("label_State")) self.lineEdit_State = QtGui.QLineEdit(self.frame_Info_Panel) self.lineEdit_State.setEnabled(False) self.lineEdit_State.setGeometry(QtCore.QRect(120, 40, 111, 27)) palette = QtGui.QPalette() brush = QtGui.QBrush(QtGui.QColor(60, 60, 60)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.Text, brush) brush = QtGui.QBrush(QtGui.QColor(60, 60, 60)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.Text, brush) brush = QtGui.QBrush(QtGui.QColor(0, 0, 127)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.Text, brush) self.lineEdit_State.setPalette(palette) self.lineEdit_State.setObjectName(_fromUtf8("lineEdit_State")) self.groupBox_Current_Position = QtGui.QGroupBox(self.frame_Info_Panel) self.groupBox_Current_Position.setGeometry(QtCore.QRect(10, 70, 241, 91)) palette = QtGui.QPalette() brush = QtGui.QBrush(QtGui.QColor(0, 0, 0)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.WindowText, brush) brush = QtGui.QBrush(QtGui.QColor(85, 255, 0)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.Button, brush) brush = QtGui.QBrush(QtGui.QColor(170, 255, 127)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.Light, brush) brush = QtGui.QBrush(QtGui.QColor(127, 255, 63)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.Midlight, brush) brush = QtGui.QBrush(QtGui.QColor(42, 127, 0)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.Dark, brush) brush = QtGui.QBrush(QtGui.QColor(56, 170, 0)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.Mid, brush) brush = QtGui.QBrush(QtGui.QColor(0, 0, 0)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.Text, brush) brush = QtGui.QBrush(QtGui.QColor(255, 255, 255)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.BrightText, brush) brush = QtGui.QBrush(QtGui.QColor(0, 0, 0)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.ButtonText, brush) brush = QtGui.QBrush(QtGui.QColor(255, 255, 255)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.Base, brush) brush = QtGui.QBrush(QtGui.QColor(85, 255, 0)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.Window, brush) brush = QtGui.QBrush(QtGui.QColor(0, 0, 0)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.Shadow, brush) brush = QtGui.QBrush(QtGui.QColor(170, 255, 127)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.AlternateBase, brush) brush = QtGui.QBrush(QtGui.QColor(255, 255, 220)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.ToolTipBase, brush) brush = QtGui.QBrush(QtGui.QColor(0, 0, 0)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.ToolTipText, brush) brush = QtGui.QBrush(QtGui.QColor(0, 0, 0)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.WindowText, brush) brush = QtGui.QBrush(QtGui.QColor(85, 255, 0)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.Button, brush) brush = QtGui.QBrush(QtGui.QColor(170, 255, 127)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.Light, brush) brush = QtGui.QBrush(QtGui.QColor(127, 255, 63)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.Midlight, brush) brush = QtGui.QBrush(QtGui.QColor(42, 127, 0)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.Dark, brush) brush = QtGui.QBrush(QtGui.QColor(56, 170, 0)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.Mid, brush) brush = QtGui.QBrush(QtGui.QColor(0, 0, 0)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.Text, brush) brush = QtGui.QBrush(QtGui.QColor(255, 255, 255)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.BrightText, brush) brush = QtGui.QBrush(QtGui.QColor(0, 0, 0)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.ButtonText, brush) brush = QtGui.QBrush(QtGui.QColor(255, 255, 255)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.Base, brush) brush = QtGui.QBrush(QtGui.QColor(85, 255, 0)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.Window, brush) brush = QtGui.QBrush(QtGui.QColor(0, 0, 0)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.Shadow, brush) brush = QtGui.QBrush(QtGui.QColor(170, 255, 127)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.AlternateBase, brush) brush = QtGui.QBrush(QtGui.QColor(255, 255, 220)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.ToolTipBase, brush) brush = QtGui.QBrush(QtGui.QColor(0, 0, 0)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.ToolTipText, brush) brush = QtGui.QBrush(QtGui.QColor(42, 127, 0)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.WindowText, brush) brush = QtGui.QBrush(QtGui.QColor(85, 255, 0)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.Button, brush) brush = QtGui.QBrush(QtGui.QColor(170, 255, 127)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.Light, brush) brush = QtGui.QBrush(QtGui.QColor(127, 255, 63)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.Midlight, brush) brush = QtGui.QBrush(QtGui.QColor(42, 127, 0)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.Dark, brush) brush = QtGui.QBrush(QtGui.QColor(56, 170, 0)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.Mid, brush) brush = QtGui.QBrush(QtGui.QColor(42, 127, 0)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.Text, brush) brush = QtGui.QBrush(QtGui.QColor(255, 255, 255)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.BrightText, brush) brush = QtGui.QBrush(QtGui.QColor(42, 127, 0)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.ButtonText, brush) brush = QtGui.QBrush(QtGui.QColor(85, 255, 0)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.Base, brush) brush = QtGui.QBrush(QtGui.QColor(85, 255, 0)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.Window, brush) brush = QtGui.QBrush(QtGui.QColor(0, 0, 0)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.Shadow, brush) brush = QtGui.QBrush(QtGui.QColor(85, 255, 0)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.AlternateBase, brush) brush = QtGui.QBrush(QtGui.QColor(255, 255, 220)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.ToolTipBase, brush) brush = QtGui.QBrush(QtGui.QColor(0, 0, 0)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.ToolTipText, brush) self.groupBox_Current_Position.setPalette(palette) self.groupBox_Current_Position.setObjectName(_fromUtf8("groupBox_Current_Position")) self.label_Current_Position_X = QtGui.QLabel(self.groupBox_Current_Position) self.label_Current_Position_X.setGeometry(QtCore.QRect(20, 20, 41, 27)) self.label_Current_Position_X.setObjectName(_fromUtf8("label_Current_Position_X")) self.lineEdit_Current_Position_X = QtGui.QLineEdit(self.groupBox_Current_Position) self.lineEdit_Current_Position_X.setEnabled(False) self.lineEdit_Current_Position_X.setGeometry(QtCore.QRect(60, 20, 161, 27)) palette = QtGui.QPalette() brush = QtGui.QBrush(QtGui.QColor(60, 60, 60)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.Text, brush) brush = QtGui.QBrush(QtGui.QColor(60, 60, 60)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.Text, brush) brush = QtGui.QBrush(QtGui.QColor(0, 0, 127)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.Text, brush) self.lineEdit_Current_Position_X.setPalette(palette) self.lineEdit_Current_Position_X.setObjectName(_fromUtf8("lineEdit_Current_Position_X")) self.label_Current_Position_Y = QtGui.QLabel(self.groupBox_Current_Position) self.label_Current_Position_Y.setGeometry(QtCore.QRect(20, 50, 41, 27)) self.label_Current_Position_Y.setObjectName(_fromUtf8("label_Current_Position_Y")) self.lineEdit_Current_Position_Y = QtGui.QLineEdit(self.groupBox_Current_Position) self.lineEdit_Current_Position_Y.setEnabled(False) self.lineEdit_Current_Position_Y.setGeometry(QtCore.QRect(60, 50, 161, 27)) palette = QtGui.QPalette() brush = QtGui.QBrush(QtGui.QColor(60, 60, 60)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.Text, brush) brush = QtGui.QBrush(QtGui.QColor(60, 60, 60)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.Text, brush) brush = QtGui.QBrush(QtGui.QColor(0, 0, 127)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.Text, brush) self.lineEdit_Current_Position_Y.setPalette(palette) self.lineEdit_Current_Position_Y.setObjectName(_fromUtf8("lineEdit_Current_Position_Y")) self.scrollArea_Info_Panel.setWidget(self.scrollAreaWidgetContents) self.tabWidget_Info_Panel.addTab(self.tab_1, _fromUtf8("")) self.tab_2 = QtGui.QWidget() self.tab_2.setObjectName(_fromUtf8("tab_2")) self.tabWidget_Info_Panel.addTab(self.tab_2, _fromUtf8("")) self.dockWidget_Info_Panel.setWidget(self.dockWidgetContents_Info_Panel) MainWindow_InfoPanel.addDockWidget(QtCore.Qt.DockWidgetArea(2), self.dockWidget_Info_Panel) self.retranslateUi(MainWindow_InfoPanel) self.tabWidget_Info_Panel.setCurrentIndex(0) QtCore.QMetaObject.connectSlotsByName(MainWindow_InfoPanel) def retranslateUi(self, MainWindow_InfoPanel): MainWindow_InfoPanel.setWindowTitle(QtGui.QApplication.translate("MainWindow_InfoPanel", "MainWindow Info Panel", None, QtGui.QApplication.UnicodeUTF8)) self.dockWidget_Info_Panel.setWindowTitle(QtGui.QApplication.translate("MainWindow_InfoPanel", "Info Panel", None, QtGui.QApplication.UnicodeUTF8)) self.label_Eqpt_Model.setText(QtGui.QApplication.translate("MainWindow_InfoPanel", "Eqpt Model:", None, QtGui.QApplication.UnicodeUTF8)) self.lineEdit_Eqpt_Model.setText(QtGui.QApplication.translate("MainWindow_InfoPanel", "ABC", None, QtGui.QApplication.UnicodeUTF8)) self.label_State.setText(QtGui.QApplication.translate("MainWindow_InfoPanel", "State:", None, QtGui.QApplication.UnicodeUTF8)) self.lineEdit_State.setText(QtGui.QApplication.translate("MainWindow_InfoPanel", "Working", None, QtGui.QApplication.UnicodeUTF8)) self.groupBox_Current_Position.setTitle(QtGui.QApplication.translate("MainWindow_InfoPanel", "Current Position:", None, QtGui.QApplication.UnicodeUTF8)) self.label_Current_Position_X.setText(QtGui.QApplication.translate("MainWindow_InfoPanel", "X =", None, QtGui.QApplication.UnicodeUTF8)) self.lineEdit_Current_Position_X.setText(QtGui.QApplication.translate("MainWindow_InfoPanel", "1000.00 m", None, QtGui.QApplication.UnicodeUTF8)) self.label_Current_Position_Y.setText(QtGui.QApplication.translate("MainWindow_InfoPanel", "Y =", None, QtGui.QApplication.UnicodeUTF8)) self.lineEdit_Current_Position_Y.setText(QtGui.QApplication.translate("MainWindow_InfoPanel", "1000.00 m", None, QtGui.QApplication.UnicodeUTF8)) self.tabWidget_Info_Panel.setTabText(self.tabWidget_Info_Panel.indexOf(self.tab_1), QtGui.QApplication.translate("MainWindow_InfoPanel", "Info_Pg 1", None, QtGui.QApplication.UnicodeUTF8)) self.tabWidget_Info_Panel.setTabText(self.tabWidget_Info_Panel.indexOf(self.tab_2), QtGui.QApplication.translate("MainWindow_InfoPanel", "Info_Pg 2", None, QtGui.QApplication.UnicodeUTF8)) PS: I initially created the mainWindow as a Dialog, but realized that after undock & redock, the dockWidget doesn't dock properly. Somehow there's an offset. This doesn't seem to be a problem if the mainWindow is a QtGui.QMainWindow instead of a QtGui.QDialog.

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• JME: How to get the complete screen in WHITE without buttons, etc etc

  - by Sepala

  Please have a look at the following code /* * To change this template, choose Tools | Templates * and open the template in the editor. */ import javax.microedition.midlet.*; import javax.microedition.lcdui.*; /** */ public class Midlet extends MIDlet{ private Form f; private Display d; private Command start,stop; private Thread t; public Midlet() { t = new Thread(new TurnLightOn()); } public void startApp() { f = new Form("Back Light On"); d = Display.getDisplay(this); d.setCurrent(f); start = new Command("Turn On",Command.OK,0); stop = new Command("Turn Off",Command.OK,1); f.addCommand(start); f.setCommandListener(new Action()); } public void pauseApp() { } public void destroyApp(boolean unconditional) { this.notifyDestroyed(); } private class Action implements CommandListener { public void commandAction(Command c, Displayable dis) { f.append("Light is Turnning On"); t.start(); } } private class ActionOff implements CommandListener { public void commandAction(Command c, Displayable dis) { } } private class TurnLightOn implements Runnable { public void run() { f.append("Working"); for(int i=0;i<100;i++) { try { d.flashBacklight(200); d.vibrate(200); Thread.sleep(1000); } catch (InterruptedException ex) { ex.printStackTrace(); } } } } } First, Please note I am a 100% newbie to Java Mobile. In here, I am making the light on and vibrate on when user click the button. However, I really wanted to create a SOS application which turn the whole screen into white, and go to black, like that, in the thread. I guess I didn't achieve that by this app because even the lights are on, the buttons are still there. I tried to turn the "Form" color to "white" but it seems like JME has no "Color" class! Please help!

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• Best strategy for moving data between physical tiers in ASP.net

  - by Pete Lunenfeld

  Building a new ASP.net application, and planning to separate DB, 'service' tier and Web/UI tier into separate physical layers. What is the best/easiest strategy to move serialized objects between the service tier and the UI tier? I was considering serializing POCOs into JSON using simple ASP.net pages to serve the middle tier. Meaning that the UI/Web tier will request data from a (hidden to the outside user) web server that will return a JSON string. This kind of JSON 'emitter' seems easily testable. It also seems easily compressible for efficiently moving data over the WAN between tiers. I know that some folks use .asmx webservices for this kind of task, but this seems like there is excess overhead with SOAP, and the package is not as human readable (testable) as POCOs serialized as JSON. Others are using more complex technology like WCF which we have never used. Does anyone have advice for choosing a method for moving data/objects between the data (db) tier and the web (UI) tier over the WAN using .net technologies? Thanks!!!

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• How to handle activity life cycle involving sockets in Android?

  - by Henrik

  Hello all, I have an Android activity which in turn starts a thread. In the thread I open a persistent TCP socket connection. When the socket connects to the server dynamic data is downloaded. The thread sends messages using Handler-class to the activity when data has been received. Now if the user happens to switch from portrait to landscape mode the activity gets an onDestroy call. At this moment I close the socket and stop the thread. When Android has switched landscape mode it calls onCreate yet again and I have to do a socket re-connect. Also, all of the data the activity received needs to be downloaded once more because the server does not have the ability to know what has been sent before, i.e. there is no "resume" feature. Thus the problem is that there is alot of data which is resent all the time when landscape mode is changed. What are my options here? Should I create a service which handles the socket traffic towards the server thus I always got all the data which the server has sent in the service. Or should I disable landscape mode all together perhaps? Or would my best bet be to rewrite my server which is a VERY BIG job :-) All input is welcome :-) / Henrik

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• How much should the AppDelegate do?

  - by Rudiger

  I'm designing quite a large App and on startup it will create sessions with a few different servers. As they are creating a session which is used across all parts of the app its something I thought would be best in App Delegate. But the problem is I need the session progress to be represented on the screen. I plan to have a UIToolBar at the bottom of the main menu which I don't want to cover with the progress bar but cover the UIView above it.So the way I see it I could do it a few different ways. 1) Have the App Delegate establish the sessions and report the progress to the main menu class so it can represent it in the progress bar (will I have any issues doing this if the sessions are created in a separate thread?), 2) have the App delegate display the main menu (UIView with a bunch of buttons and UIToolBar) and have it track and display the progress (I have never displayed anything in the App Delegate but assume you can do this but its not recommended) or 3) have the App Delegate just push the main menu and have the mainMenu class create the sessions and display the progress bar. 4) I think the other way to do it is to create the sessions in a delegate class and have the delegate set to mainMenu rather than self (AppDelegate), although I've never used anything other then self so not sure if this will work or if I will be able to close the thread (through calling super maybe?) as its running in the AppDelegate rather than the delegate of the class. As I've kinda said before the sessions are being created in a class in a separate thread so it wont lock the UI and I think the best way is the first but am I going to have issues having it running in a separate thread, reporting back to the app delegate and then sending that message to the mainMenu view? I hope that all makes sense, let me know if you need any further clarification. Any information is appreciated Cheers,

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