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• QFileDialog and german umlaute within a path

  - by MB

  Hey Everybody, i am working on a project, which i am developing with Python and PyQT4. I have stumbled upon a somewhat odd behaviour of the QFileDialog, that is not occuring when running the project within in my IDE (Eclipse). The problem is that QFileDialog in ExistingFiles-mode does fail to return the list of selected files, when one of the file paths is containing a german umlaut (ä,ü,ö, etc.) The QFileDialog is not offering options or parameters to make it sensible regarding this scenario. Does anyone have any ideas of how to tackle this issue?

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• Converting array to list in Java

  - by Alexandru

  How do I convert an array to a list in Java? I used the Arrays.asList() but the behavior (and signature) somehow changed from 1.4.2 to 1.5.0 and most snippets I found on the web use the 1.4.2 behaviour. For example: int[] spam = new int[] { 1, 2, 3 }; Arrays.asList(spam) on 1.4.2 returns a list containing the elements 1, 2, 3 on 1.5.0 returns a list containing the array spam In many cases it should be easy to detect, but sometimes it can slip unnoticed: Assert.assertTrue(Arrays.asList(spam).indexOf(4) == -1);

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• FileUtils.mv adding linebreaks in Windows

  - by Lowgain

  I am streaming wav data from a flash application. If I get the data and do the following: f = File.open('c:/test.wav') f << wav_data.pack('c'*wav_data.length) f.close The wav file works perfectly. If I do this: f = Tempfile.new('test.wav') f << wav_data.pack('c'*wav_data.length) f.close FileUtils.mv(f.path, 'c:/') The file is there, but sounds all garbled. Checking in a hex editor shows that everywhere the working file had an 0A (or \n), the garbled version had 0D0A (or \r\n) I am using this in conjuction with rails+paperclip, and am going to be using a combination of Heroku and S3 for the live app, so I am hoping this problem will solve itself, but I'd like to get this working on my local machine for the time being. Does anybody know of any reason FileUtils.mv would be doing this, and if there is a way to change its behaviour?

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• Hiding privates from Javascript Intellisense

  - by Robert Koritnik

  Is it possible to hide certain functions/fields from displaying in javascript intellisense drop down list in Visual Studio 2008? Either by javascript documentaion XML of by naming privates in a certain way? I've seen <private /> in jquery vsdoc file that implies exactly this behaviour, but doesn't meet my expectations { __hiddenField: 0, /// <private /> increment: function(){ /// <summary>Increments a private variable</summary> __hiddenField++; } } But since fields can't contain documentation (because they have no body) they have to be documented at the top. But still doesn't work: { /// <field name="__hiddenField" type="Number" private="true">PRIVATE USE</field> __hiddenField: 0, increment: function(){ /// <summary>Increments a private variable</summary> __hiddenField++; } } Impossible is a perfectly possible answer and will be accepted if you have the knowledge that it's actually not possible.

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• Hiding flash component scrollbars using object/param syntax

  - by Kieran Benton

  Hi all, I'm not sure if this is possible (complete non-flash developer speaking), but we have a 3rd party component that we want to only show a certain topleft hand portion of. I've tried limiting the size of the HTML object container as: <object type="application/x-shockwave-flash" width="600" height="415" data="<url>"> <param name="movie" value="<url>" /> <param name="wmode" value="transparent" /> <param name="allowscriptaccess" value="always" /> <param name="quality" value="high" /> <param name="flashvars" value="<vars>" /> </object> So limiting it to 600x415, but this causes horizontal and vertical scrollbars as part of the flash component to appear. Is there any standard way to override this behaviour? Thanks.

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• Embedding QT application in Eclipse/RCP framework

  - by mots_g

  Hi, I'm trying to embed my working QT application in Eclipse RCP framework(might not sound wise but i need to do this). I'm using QT 4.5 (not yet explored what QTJambi is all about and has to offer) I convert my existing application as a dll and load it through eclipse application. Things dont work as they should as the QTApplication loop sits listening for events, and there is a good mismatch of events. Certain UI objects dont get the events. If I comment my Qppliaction::exec(), then the behaviour in QT app changes. Is there a way to achieve what I'm trying to achieve?? Thanks

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• Getter/setter on javascript array?

  - by Martin Hansen

  Is there a way to get a get/set behaviour on an array? I imagine something like this: var arr = ['one', 'two', 'three']; var _arr = new Array(); for (var i=0; i < arr.length; i++) { arr[i].defineGetter('value', function(index) { //Do something return _arr[index]; }); arr[i].defineSetter('value', function(index, val) { //Do something _arr[index] = val; }); };

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• Question about WinForms TrackBar control in .Net

  - by Jules

  Does anyone know the millisecond interval, used by the framework trackbar, between calling the ValueChanged event when moving the grip with a mouse? I've implemented my own trackbar and I'd like the behaviour to be consistent with what the user expects. I've had a look in reflector but it's one of those controls where most of the implementation is not viewable. ETA: Actually, thinking about it, it's not as simple as that. For small changes, the TrackBar is raising the event for every change. However, if you make a large fast change with the grip, it will not raise the event for every step. Just wondering exactly how the framework does this? Thanks

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• Decimal numbers works in iPhone simulator but NOT on iPhone device

  - by matsoftware

  Hi everybody, I noticed a weird behaviour of iPhone OS when using decimal values. The simulator parse them from strings in a correct way but when I test the app on my iPhone it lose the decimal part. In particular, I store values in a dictionary that I retrieve in this way: Code: NSString *thickStr = [dictionary valueForKey:@"thickness"]; NSNumber *thickNum = [[[self class] numberFormatter] numberFromString:thickStr]; [self setSpessore:thickNum]; where the "numberFormatter" class is defined as below: Code: + (NSNumberFormatter *)numberFormatter { static NSNumberFormatter *_formatter; if (_formatter == nil) { _formatter = [[NSNumberFormatter alloc] init]; [_formatter setNumberStyle:NSNumberFormatterDecimalStyle]; [_formatter setFormatterBehavior:NSNumberFormatterBehavior10_4]; [_formatter setGeneratesDecimalNumbers:TRUE]; } return _formatter; } But it doesn't work! The App on iPhone keeps on convert the string to a simple integer, forgetting the decimal part, while the app on iPhone simulator works fine!

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• Why does python use 'magic methods'?

  - by Greg Beech

  I've been playing around with Python recently, and one thing I'm finding a bit odd is the extensive use of 'magic methods', e.g. to make its length available an object implements a method def __len__(self) and then it is called when you write len(obj). I was just wondering why objects don't simply define a len(self) method and have it called directly as a member of the object, e.g. obj.len()? I'm sure there must be good reasons for Python doing it the way it does, but as a newbie I haven't worked out what they are yet.

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• good documentation about "avoid catching throwable", in context of weblogic server

  - by Marcel

  hi all, i am currently refactoring an existing codebase (EJBs...) to rip out all blocks where a Throwable is catched inside of the EJB. try { ... do some business logic } catch(Throwable t){ ... log and swallow ... :-( } i want/need to convince the people around me with proper documentation that "catching throwable" is a no-go for an EJB (we have lots of discussions around this :-(( ). weblogic will handle all the "Error" conditions and maybe invalidate EJBs and put fresh(working) EJBs into the pool. catching Throwable would undermine all these security nets provided by weblogic. and catching throwable is bad practice anyway (but people here are reluctant and use the "throwable" hammer everywhere). is anyone able to point me to some online docs where this behaviour is explained (for weblogic or jboss or...). i searched via google and had a look at the weblogic docs but wasn't able to find anything, just generic java doc. any help highly appreciated cheers marcel

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• Tuning OS X Virtual Memory

  - by dcolish

  I've noticed some really odd results form vm_stat on OSX 10.6. According to this, its barely hitting the cache. Searches of pretty much everywhere I could think of turn up little to explain why the rate is so low. I asked a few friends and they're seeing the same thing. What gives and how can I make it better? Mach Virtual Memory Statistics: (page size of 4096 bytes) Pages free: 78609. Pages active: 553411. Pages inactive: 191116. Pages speculative: 6198. Pages wired down: 153998. "Translation faults": 116031508. Pages copy-on-write: 2274338. Pages zero filled: 33360804. Pages reactivated: 264378. Pageins: 1197683. Pageouts: 43756. Object cache: 20 hits of 1550639 lookups (0% hit rate)

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• C# .NET 4.0 and Generics

  - by Mr Snuffle

  I was wondering if anyone could tell me if this kind of behaviour is possible in C# 4.0 I have an object hierarchy I'd like to keep strongly typed. Something like this class ItemBase {} class ItemType<T> where T : ItemBase { T Base { get; set; } } class EquipmentBase : ItemBase {} class EquipmentType : ItemType<EquipmentBase> {} What I want to be able to do to have something like this ItemType item = new EquipmentType(); And I want item.Base to return type ItemBase. Basically I want to know if it's smart enough to strongly typed generic to a base class without the strong typing. Benefit of this being I can simply cast an ItemType back to an EquipmentType and get all the strongly typedness again. I may be thinking about this all wrong...

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• Checking if date parsing is correct

  - by Javi

  Hello, I have this code for checking whether the Date is OK or not, but it's not ckecking all the cases. For example when text="03/13/2009" as this date doesn't exist in the format "dd/MM/yyyy" it parses the date as 03/01/2010. Is there any way to change this behaviour and getting an exception when I try to parse a Date which is not correct? What's the best way to do this validation? public static final String DATE_PATTERN = "dd/MM/yyyy"; public static boolean isDate(String text){ SimpleDateFormat formatter = new SimpleDateFormat(DATE_PATTERN); ParsePosition position = new ParsePosition(0); formatter.parse(text, position); if(position.getIndex() != text.length()){ return false; }else{ return true; } } Thanks.

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• Uploadify refuses to upload WMV, FLV and MP4 files

  - by Jon Winstanley

  The uploadify plugin for JQuery seems very good and works for most file types. However, it allows me to upload all file types apart from the ones I need! Namely .WMV, .FLV and .MP4 I have googled the issue and not found anyonw having such difficulties. I have already tried changing the fileExt parameter and also tried removing it altogether. I have testing in Google Chrome, IE7 and Firefox and none work for thes efile types. Is there a known reason for this behaviour?

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• POSIX-compatible regex library for Visual Studio C

  - by user1397061

  I'm working on a C program which will be run in Linux and from inside Visual Studio 2010, and I'm looking for a regex library. GNU comes with a POSIX-compatible regex library, but Visual Studio, despite having C++ std::regex, doesn't have a C-compatible library. GNU has a Windows version of their library (http://gnuwin32.sourceforge.net/packages/regex.htm), but the DLLs are 32-bit only and the source code can't compile in Visual Studio (~500 errors!). My only requirement is that the end-user should not have to install anything extra, and should get the same behaviour on both platforms. I'm not picky about whether it's POSIX-style, Perl-style or something else. What should I do? Thanks in advance.

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• XCode 3.2 - can't create Objective-C class

  - by Urizen

  My installation of XCode 3.2 has begun to exhibit some strange behaviour. When I try to add a basic Objective-C classs (inheriting from NSObject), in my iPhone project, I get the following popup: "Alert. Couldn't load the next page". The above-mentioned error happens at the point of trying to create the file (i.e. the creation process doesn't get to the stage where you are asked to input the file name). It might also be worth mentioning that where there previously used to be a description for the file (in the file creation window) it now states "No description available". I can create other files (e.g. UIViewController subclass etc.) but not the basic Objective-C class. I have updated the documentation and restarted the machine and xcode several times without success. I would be extremely grateful for any assistance as I am relatively new to the XCode environment.

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• Making selectable again a WPF TreeviewITem after the first click

  - by pileggi

  Hi, I have a TreeVIew WPF with 2 Levels of Data. I have deleted the ToogleButton from the TreeViewItemTemplate. Now I'd like to expand / collapse the groups with a single mouse-click (not with a double click as the default behaviour). I have tried in this way: Private Sub tvArt_SelectedItemChanged(ByVal sender As System.Object, _ ByVal e As RoutedPropertyChangedEventArgs(Of System.Object)) Handles tvArt.SelectedItemChanged If e.NewValue Is Nothing = False Then Dim ri As P_RicambiItem = TryCast(e.NewValue, P_RicambiItem) If ri Is Nothing = False Then If ri.isExpanded Then ri.isExpanded = False Else ri.isExpanded = True End If ri.isSelected = False End If End If End Sub Using my properties "isExpanded" and "isSelected" in the collection data source. But it works only halfway: after the first click, infact, I can't click for a second time on the same item, because, even if I've deselected it, the event handler "remembers" that it was the last selected item and it doesn't capture the event "SelectedItemChanged". How can I do? Thanks a lot, Pileggi

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• Safari wrapping too early

  - by the Hampster

  I've created a class web page with a page for midterm review. It uses jsMath to turn Tex into nice math. (MathML looks awful) Anyway, I would occasionally like to have several problems per line. Each problem is in its own <span>, so if it needs to wrap, it won't split the problem. It all seems to work, except that Safari for the Mac seems overly anxious to wrap, sometimes wrapping at 30% paragraph width. Even under inspection, it reports a width of 663px, but wrapping occurs at around 150px. There is no padding. Firefox renders just fine. A comparison is here: http://davehampson.net/Images/Safaribug.png Sometimes Safari works just fine. The original web page is here: http://math.davehampson.net/index3.php (study guide 2) I don't know if this is a bug in safari, or if there is some odd/subtle css point I am missing. Any help would be appreciated. --Dave

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• How to reinforce pseudo css rules

  - by danwoods

  Is there anyway to reinforce pseudo css rules? ie: I have a listing of divs (playlist) which I color with the following rules: #playlist .playlist_item { background: #d6d6d6; } #playlist .playlist_item:nth-child(odd) { background: #b3b3b3; } Now, when a song is playing, I use setInterval and JQuery's .animate function to pulse the background color. When the song is finished I clear the interval, but of course the song's background remains the last color set in the interval. Is there a way to re-set the song's color based on the CSS rule? Otherwise I'll have to keep track of the previous song (which may have changed position, and thus color) or setup distinct background color classes and reset the classes of all the songs in the playlist anytime someone adds, removes, or moves a song in the playlist or a song ends. I'd much rather use a CSS only approach. Thanks in advance, Dan

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• Selenium Grid not always using all of its registered RC's, why?

  - by BenA

  My Selenium Grid setup is as follows (all VMs) VM1 - Windows 7 x64 - Grid Hub + 2 RCs registering the default *firefox environment VM2 - Windows XP x32 - 2 RCs registering the default *firefox environment VM3 - Windows XP x32 - 2 RCs registering the default *firefox environment I'm happily using Mbunit and Gallio to drive the Grid, but my problem is that sometimes the Grid hub will stop passing executions over to 1 or more of the RCs, despite their showing available on the hub console. They seem to be happily maintaining their heartbeat back to the hub, but they're never asked to do any more work. This is after they had been executing tests earlier in the test run. Does anybody have any ideas why this should happen? In every case I've observed this behaviour, the last test an RC executed, before it then seemingly gets ignored by the hub, passed, and the session was successfully closed. Interestingly, whenever it happens to more than 1 of the RCs, its always (so far) been the pair that are running on the same VM. Yet they're managing to maintain their heartbeat, so it isn't a network connectivity problem. Any help would be greatly appreciated!

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• java regex illegal escape character error not occurring from command line arguments

  - by Shades88

  This simple regex program import java.util.regex.*; class Regex { public static void main(String [] args) { System.out.println(args[0]); // #1 Pattern p = Pattern.compile(args[0]); // #2 Matcher m = p.matcher(args[1]); boolean b = false; while(b = m.find()) { System.out.println(m.start()+" "+m.group()); } } } invoked by java regex "\d" "sfdd1" compiles and runs fine. But if #1 is replaced by Pattern p = Pattern.compile("\d");, it gives compiler error saying illegal escape character. In #1 I also tried printing the pattern specified in the command line arguments. It prints \d, which means it is just getting replaced by \d in #2. So then why won't it throw any exception? At the end it's string argument that Pattern.compile() is taking, doesn't it detect illegal escape character then? Can someone please explain why is this behaviour?

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• Connecting to SQL Server with Visual Studio Express Editions

  - by tlianza

  I find it odd that in Visual C# 2008 Express edition, when you use the database explorer, your options are: 1) Microsoft Access 2) SQL Server Compact 3.5, and 3) SQL Server Database File. BUT if you use Visual Web Developer 2008 Express, you can connect to a regular SQL Server, Oracle, ODBC, etc. For people developing command-line or other C# apps that need to talk to a SQL Server database, do you really need to build your LINQ/Data Access code with one IDE (Visual Web Developer) and your program in another (Visual C#)? It's not a hard workaround, but it seems weird. If Microsoft wanted to force you to upgrade to Visual Studio to connect to SQL Server, why would they include that feature in one of their free IDEs but not the other? I feel like I might be missing something (like how to do it all in Visual C#). Thanks! Tom

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• VERBOSE=yes makefile option on gnu make under cygwin not working for me.

  - by goldenmean

  Hi, I use gnumake version GNU Make 3.81 under cygwin on windows. Cygwin version is CYGWIN_NT-6.1-WOW64 1.7.7(0.230/5/3) 2010-08-31 09:58 i686 Cygwin In my makefile used to build the source, when i say VERBOSE=yes, i still do not see detailed commands and options used to compile,link the code. So basically VEROBSE=yes behaviour seems to be same as VERBOSE=no. Pls. note that the compiler (sparc-elf-gcc) which the make command invokes, is configured with --verbose option. I verified that by checking sparc-elf-gcc -v . Is this switch removed/deprecated for this particular gnumake/cygwin versions or any pointers on how I can see details of the make/compile/link commands. thank you. -AD.

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• Header file-name as argument

  - by Alphaneo

  Objective: I have a list of header files (about 50 of them), And each header-file has few arrays with constant elements. I need to write a program to count the elements of the array. And create some other form of output (which will be used by the hardware group). My solution: I included all the 50 odd files and wrote an application. And then I dumped all the elements of the array into the specified format. My environment: Visual Studio V6, Windows XP My problem: Each time there is a new set of Header files, I am now changing the VC++ project settings to point to the new set of header files, and then rebuild. My question: A bit in-sane though, Is there any way to mention the header from some command line arguments or something? I just want to avoid re-compiling the source every time...

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