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  • Code a timer in a python GUI in TKinter

    - by Diego Castro
    I need to code a program with GUI in python (I'm thinking of using TKinter, 'cause it's easy, but I'm open to suggestions). My major problem is that I don't know how to code a timer (like a clock... like 00:00:00,00 hh:mm:ss,00 ) I need it to update it self (that's what I don't know how to do) Another question is how do I put a program in the system tray (I don't think it's called like that in Linux) for UBUNTU.

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  • Execute a Rake task from within migration?

    - by Fabiano PS
    I have a Rake task that loads configuration data into the DB from a file, is there a correct ruby/rails way to call it on a migration up? My objective is to sync my team DB configs, without have to broadcast then to run the migration lalala def self.up change_table :fis_situacao_fiscal do |t| t.remove :mostrar_endereco t.rename :serie, :modelo end Faturamento::Cfop.destroy_all() #perform rake here ! end btw: Admins could clean up some tags? there is 'migrations' and 'migration', same as 'ruby-on-rails' and 'rails'

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  • Create a screen like the iPhone home screen with Scrollview and Buttons

    - by Anthony Chan
    Hi, I'm working on a project and need to create a screen similar to the iPhone home screen: A scrollview with multiple pages A bunch of icons When not in edit mode, swipe through different pages (even I started the touch on an icon) When not in edit mode, tap an icon to do something When in edit mode, drag the icon to swap places, and even swap to different pages When in edit mode, tap an icon to remove it Previously I read from several forums that I have to subclass UIScrollview in order to have touch input for the UIViews on top of it. So I subclassed it overriding the methods to handle touches: - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { //If not dragging, send event to next responder if (!self.dragging) [self.nextResponder touchesBegan:touches withEvent:event]; else [super touchesBegan:touches withEvent:event]; } In general I've override the touchesBegan:, touchesMoved: and touchesEnded: methods similarly. Then in the view controller, I added to following code: - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { UITouch *touch = [touches anyObject]; UIView *hitView = (UIView *)touch.view; if ([hitView isKindOfClass:[UIView class]]) { [hitView doSomething]; NSLog(@"touchesBegan"); } } - (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event { // Some codes to move the icons NSLog(@"touchesMoved"); } - (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event { NSLog(@"touchesEnded"); } When I run the app, I have the touchesBegan method detected correctly. However, when I tried to drag the icon, the icon just moved a tiny bit and then the page started to scroll. In console, it logged with 2 or 3 "touchesMoved" message only. However, I learned from another project that it should logged tonnes of "touchesMoved" message as long as I'm still dragging on the screen. (I'm suspecting I have the delaysContentTouches set to YES, so it delays a little bit when I tried to drag the icons. After that minor delay, it sends to signal back to the scrollview to scroll through the page. Please correct me if I'm wrong.) So if any help on the code to perform the above tasks would be greatly appreciated. I've stuck in this place for nearly a week with no hope. Thanks a lot.

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  • Visual Studio Lightswitch Beta2

    - by Elmex
    What are your experiences with Beta2 of Visual Lightswitch? Can it already be used for real life projects? Does anybody know, when the final (RTM) version will be out? I am very intersting in using Lightswitch in the future for RAD, but I am a litte bit self-conscious, if the tool is flexible enough for my dividual requirements and if a Lightswitch solution can be extended with own code !? Can it be mixed with "normal" Silverlight?

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  • NSXMLParser Memory Allocation Efficiency for the iPhone

    - by Staros
    Hello, I've recently been playing with code for an iPhone app to parse XML. Sticking to Cocoa, I decided to go with the NSXMLParser class. The app will be responsible for parsing 10,000+ "computers", all which contain 6 other strings of information. For my test, I've verified that the XML is around 900k-1MB in size. My data model is to keep each computer in an NSDictionary hashed by a unique identifier. Each computer is also represented by a NSDictionary with the information. So at the end of the day, I end up with a NSDictionary containing 10k other NSDictionaries. The problem I'm running into isn't about leaking memory or efficient data structure storage. When my parser is done, the total amount of allocated objects only does go up by about 1MB. The problem is that while the NSXMLParser is running, my object allocation is jumping up as much as 13MB. I could understand 2 (one for the object I'm creating and one for the raw NSData) plus a little room to work, but 13 seems a bit high. I can't imaging that NSXMLParser is that inefficient. Thoughts? Code... The code to start parsing... NSXMLParser *parser = [[NSXMLParser alloc] initWithData: data]; [parser setDelegate:dictParser]; [parser parse]; output = [[dictParser returnDictionary] retain]; [parser release]; [dictParser release]; And the parser's delegate code... -(void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qualifiedName attributes:(NSDictionary *)attributeDict { if(mutableString) { [mutableString release]; mutableString = nil; } mutableString = [[NSMutableString alloc] init]; } -(void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string { if(self.mutableString) { [self.mutableString appendString:string]; } } -(void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName { if([elementName isEqualToString:@"size"]){ //The initial key, tells me how many computers returnDictionary = [[NSMutableDictionary alloc] initWithCapacity:[mutableString intValue]]; } if([elementName isEqualToString:hashBy]){ //The unique identifier if(mutableDictionary){ [mutableDictionary release]; mutableDictionary = nil; } mutableDictionary = [[NSMutableDictionary alloc] initWithCapacity:6]; [returnDictionary setObject:[NSDictionary dictionaryWithDictionary:mutableDictionary] forKey:[NSMutableString stringWithString:mutableString]]; } if([fields containsObject:elementName]){ //Any of the elements from a single computer that I am looking for [mutableDictionary setObject:mutableString forKey:elementName]; } } Everything initialized and released correctly. Again, I'm not getting errors or leaking. Just inefficient. Thanks for any thoughts!

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  • Progress Bar not updating

    - by Bailz
    I have the following piece of code to write data to an XML file. private void WriteResidentData() { int count = 1; status = "Writing XML files"; foreach (Site site in sites) { try { //Create the XML file StreamWriter writer = new StreamWriter(path + "\\sites\\" + site.title + ".xml"); writer.WriteLine("<?xml version=\"1.0\" encoding=\"ISO-8859-1\" ?>"); writer.WriteLine("<customer_list>"); foreach (Resident res in site.GetCustomers()) { bw.ReportProgress((count / customers) * 100); writer.WriteLine("\t<customer>"); writer.WriteLine("\t\t<customer_reference>" + res.reference + "</customer_reference>"); writer.WriteLine("\t\t<customer_name>" + res.name + "</customer_name>"); writer.WriteLine("\t\t<customer_address>" + res.address + "</customer_address>"); writer.WriteLine("\t\t<payment_method>" + res.method + "</payment_method>"); writer.WriteLine("\t\t<payment_cycle>" + res.cycle + "</payment_cycle>"); writer.WriteLine("\t\t<registered>" + CheckWebStatus(res.reference) + "</registered>"); writer.WriteLine("\t</customer>"); count++; } writer.WriteLine("</customer_list>"); writer.Close(); } catch (Exception ex) { lastException = ex; } } } It's using the same BackgroundWorker that gets the data from the database. My progress bar properly displays the progress whilst it is reading from the database. However, after zeroing the progress bar for the XML writing it simply sits at 0 even though the process is completing correctly. Can anyone suggest why?

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  • Any simple shape recognition libraries for Java?

    - by Phil
    I am working on a on-screen keyboard for Android, and I need to recognize starting points, turning points and end points of lines drawn by the user on the keyboard. A simple straightening function would be nice, as it is difficult to draw a perfectly straight line even with a stylus, not to mention finger-only touchscreens today. What I am trying to write is something like Swype. Any good libraries that I can use or make reference to?

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  • unable to select correct ADODB version COM API

    - by Ovais
    quick question is the public key token for ADODB dll different for 64bit and 32bit. I am trying to use a COM api which uses ADODB.Recordset and some how I am not able select the right version of ADODB in VS(2010) it asks for 2.8.0.0 and I add 2.8 from the reference dialog. The only thing I can think of is that I am using a 64bit win7

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  • Avoid hardcoding iPhone screen size with programmatic view creation

    - by miorel
    Hi, I was looking up how to create a view programmatically and found the following example code: self.view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, 480)]; This works great, except I don't like that it hardcodes the size of the screen. Is there a way to look up the size of the screen? An important point someone brought up is that if the app is running during a phone call then the screen will be slightly smaller because of the green "return to call" bar.

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  • Static Map API that supports HTTPS requests and is free

    - by gravyface
    Any options out there? Google Static Maps with SSL (HTTPS) is only available to Premier members. Bing's Open Map API seems to have the same restricts. Any other ideas? I'm debating whether to schedule a cronjob to wget over http and dump the images I need into a folder (named after the content object IDs that reference them), but I'd rather find a free map API (or something less klugey) that supports HTTPS requests.

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  • how to set Anonymous delegate as one parameter for InvokeSelf ?

    - by KentZhou
    I tried to use InvokeSelf for silverlight to communicate with html: InvokeSelf can take object[] as parameter when making a call: ScriptObject Myjs; ScriptObject obj = Myjs.InvokeSelf(new object[] { element }) as ScriptObject; then I want make a call like with anonymous delegate: Object obj; obj = InvokeSelf(new object[] { element, delegate { OnUriLoaded(reference); } }); I got the error said: Cannot convert anonymous method to type 'object' because it is not a delegate type How to resolve this problem?

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  • MCTS Training Kit

    - by Wilson
    Hello every one. Can any one tell me where can I find "MCTS Self-Paced Training Kit (Exam 70-515): Microsoft .NET Framework 4 – Web Applications Development" book for download. Thanks

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  • Perl - socket programming

    - by Octopus
    I have just started learning socket programming using perl. I am wondering if there is any method to send the output (STDOUT) data/images from already running scripts/tools using perl socket programming. If anyone could explain or provide reference for the same. Any suggestions to write perl programs to automate this task.

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  • Justifying UIVIews on the iPhone: Algorithm Help

    - by coneybeare
    I have been messing around with a way to justify align a collection of UIView subclasses within a containing view. I am having a little bit of trouble with the algorithm and was hoping someone could help spot my errors. Here is pseudocode of where I am now: // 1 see how many items there are int count = [items count]; // 2 figure out how much white space is left in the containing view float whitespace = [containingView width] - [items totalWidth]; // 3 Figure out the extra left margin to be applied to items[1] through items[count-1] float margin = whitespace/(count-1); // 4 Figure out the size of every subcontainer if it was evenly split float subcontainerWidth = [containingView width]/count; // 5 Apply the margin, starting at the second item for (int i = 1; i < [items count]; i++) { UIView *item = [items objectAtIndex:i]; [item setLeftMargin:(margin + i*subcontainerWidth)]; } The items do not appear to be evenly spaced here. Not even close. Where am I going wrong? Here is a shot of this algorithm in action: EDIT: The code above is pseudocode. I added the actual code here but it might not make sense if you are not familiar with the three20 project. @implementation TTTabStrip (JustifiedBarCategory) - (CGSize)layoutTabs { CGSize size = [super layoutTabs]; CGPoint contentOffset = _scrollView.contentOffset; _scrollView.frame = self.bounds; _scrollView.contentSize = CGSizeMake(size.width + kTabMargin, self.height); CGFloat contentWidth = size.width + kTabMargin; if (contentWidth < _scrollView.size.width) { // do the justify logic // see how many items there are int count = [_tabViews count]; // 2 figure out how much white space is left float whitespace = _scrollView.size.width - contentWidth; // 3 increase the margin on those items somehow to reflect. it should be (whitespace) / count-1 float margin = whitespace/(count-1); // 4 figure out starting point float itemWidth = (_scrollView.size.width-kTabMargin)/count; // apply the margin for (int i = 1; i < [_tabViews count]; i++) { TTTab *tab = [_tabViews objectAtIndex:i]; [tab setLeft:(margin + i*itemWidth)]; } } else { // do the normal, scrollbar logic _scrollView.contentOffset = contentOffset; } return size; } @end

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  • What is the best way to bookmark positions in code in Visual Studio 2008/2010?

    - by Edward Tanguay
    I find myself going to about five or six main places in my code 80% of the time and would like a way to go to them fast even if all files are closed. I would like to be able to open up a solution in visual studio and with no file open, see a list of self-labeled bookmarks like this: LoadNext Settings page refresh app.config connections app settings stringhelpers top stringhelpers bottom I click one of these and it opens that file and jumps to that position. How can I best make bookmarks like this in Visual Studio 2008/2010?

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  • Showing labels in BibTex [LaTeX]

    - by Shahin
    Hi, I'm currently using the apalike style for my bibliography, using natbib for author-year, however when I generate the bibliography I lose the labels that normally precede the reference, i.e. [S. Rostami, 2010] Shahin Rostami (2010) http://stackoverflow.com/questions/ask etc etc.. I read apalike.bst and it seems this is intended, my quesiton is, how do I get them back? Something I can include in the preamble? Otherwise is there a similar style that shows labels?

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  • PHP: Cookie only sent to http://www.xxx.com and NOT http://xxx.com

    - by Axel
    Hi, I have a php login which sets 2 cookies once some one login. the problem is that if you login from : http://www.mydomain.com and you go to http://mydomain.com you will find your self not logged in, I think that's because the browser only send the cookies to the first syntax. It's only one domain, the difference is the www. before the domain name, so how to set cookies to the whole domain whatever there is www. or not ? Thanks

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  • I have 5 links that open the same modalpopup?

    - by JPJedi
    I have 5 links that are on the same form but I would like them all to reference the same AJAX modalpopup extender. I am basically showing a panel with the same view layout with just different data depending on which link is pressed, showing different match scores from games. The only way I can get it to work is have 5 panels with unique names and each link references its own panel. Can I get all the links to call one panel? Thanks

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  • Core Data passing context between methods on secondary threads

    - by JK
    My app spawns a secondary thread for some core data store maintenance. In the secondary thread, I set up a context which I then pass to other methods e.g. [self editEntriesInContext:context]. However, this causes objects fetched from the context to become invalidated in editEntries... Why does this occur? I thought the only requirements were for the secondary thread to have its own context and managed objects, which I adhere to. (Note: The context is properly retained)

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  • How can I resolve circular dependencies in Funq IoC?

    - by Rickard
    I have two classes which I need to reference each other. class Foo { public Foo(IBar bar) {} } class Bar { public Bar(IFoo foo) {} } When I do: container.RegisterAutoWiredAs<Foo, IFoo>(); container.RegisterAutoWiredAs<Bar, IBar>(); and when I try to resolve either interface I get a circular dependency graph which results in an eternal loop. Is there an easy way to solve this in Funq or do you know of a workaround?

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  • How to obtain a working X509Certificate for my WCF Service hosting

    - by Kobojunkie
    I am in the process of hosting my WCF services in my asp.net hosting account and I want to use X509Certificate for authentication of communication. Where do I get a certificate in this instance? Make one and then Ftp it to my account? If yes, how do I reference this certificate for use. If No, how do I get one for use please? Do I need to purchase one or something?

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