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• XNA - Keyboard text input

  - by Sekhat

  Okay, so basically I want to be able to retrieve keyboard text. Like entering text into a text field or something. I'm only writing my game for windows. I've disregarded using Guide.BeginShowKeyboardInput because it breaks the feel of a self contained game, and the fact that the Guide always shows XBOX buttons doesn't seem right to me either. Yes it's the easiest way, but I don't like it. Next I tried using System.Windows.Forms.NativeWindow. I created a class that inherited from it, and passed it the Games window handle, implemented the WndProc function to catch WM_CHAR (or WM_KEYDOWN) though the WndProc got called for other messages, WM_CHAR and WM_KEYDOWN never did. So I had to abandon that idea, and besides, I was also referencing the whole of Windows forms, which meant unnecessary memory footprint bloat. So my last idea was to create a Thread level, low level keyboard hook. This has been the most successful so far. I get WM_KEYDOWN message, (not tried WM_CHAR yet) translate the virtual keycode with Win32 funcation MapVirtualKey to a char. And I get my text! (I'm just printing with Debug.Write at the moment) A couple problems though. It's as if I have caps lock on, and an unresponsive shift key. (Of course it's not however, it's just that there is only one Virtual Key Code per key, so translating it only has one output) and it adds overhead as it attaches itself to the Windows Hook List and isn't as fast as I'd like it to be, but the slowness could be more due to Debug.Write. Has anyone else approached this and solved it, without having to resort to an on screen keyboard? or does anyone have further ideas for me to try? thanks in advance. note: This is cross posted from the XNA Creators Forums, so if I get an answer there I'll post it here and Vice-Versa Question asked by Jimmy Maybe I'm not understanding the question, but why can't you use the XNA Keyboard and KeyboardState classes? My comment: It's because though you can read keystates, you can't get access to typed text as and how it is typed by the user. So let me further clarify. I want to implement being able to read text input from the user as if they are typing into textbox is windows. The keyboard and KeyboardState class get states of all keys, but I'd have to map each key and combination to it's character representation. This falls over when the user doesn't use the same keyboard language as I do especially with symbols (my double quotes is shift + 2, while american keyboards have theirs somewhere near the return key).

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• Toolbar items in sub-nib

  - by roe

  This question has probably been asked before, but my google-fu must be inferior to everybody else's, cause I can't figure this out. I'm playing around with the iPhone SDK, and I'm building a concept app I've been thinking about. If we have a look at the skeleton generated with a navigation based app, the MainWindow.xib contains a navigation controller, and within that a root-view controller (and a navigation bar and toolbar if you play around with it a little). The root-view controller has the RootViewController-nib associated with it, which loads the table-view. So far so good. To add content to the tool bar and to the navigation bar, I'm supposed to add those to in the hierarchy below the Root View Controller (which works, no problem). However, what I can't figure out is, this is all still within the MainWindow.xib (or, at runtime, nib). How would I define a xib in order for it to pick up tool bar items from that? I want to do (the equivalent of, just reusing the name here) RootViewController *controller = [[RootViewController alloc] initWithNibName:nil bundle:nil]; [self.navigationController pushViewController:controller animated:YES]; [controller release]; and have the navigation controller pick-up on the tool bar items defined in that nib. The logical place to put it would be in the hierarchy under File's Owner (which is of type RootViewController), but it doesn't appear to be possible. Currently, I'm assigning these (navigationItem and toolbarItems) manually in the viewDidLoad method, or define them in the MainWindow.xib directly to be loaded when the app initializes. Any ideas? Edit I guess I'll try to explain with a picture. This is the Interface Builder of the main window, pretty much as it comes out of the wizard to create a navigation based project. I've added a toolbar item for clarity though. You can see the navigation controller, with a toolbar and a navigation bar, and the root view controller. Basically, the Root View Controller has a bar button item and a navigation item as you can see. The thing is, it's also got a nib associated with it, which, when loaded will instantiate a view, and assign it to the view outlet of the controller (which in that nib is File's Owner, of type RootViewController, as should be). How can I get the toolbar item, and the navigation item, into the other nib, the RootViewController.nib so I can remove them here. The RootViewController.nib adds everything else to the Root View Controller, why not these items? The background for this is that I want to simply instantiate RootViewController, initialize it with its own nib (i.e. initWithNibName:nil shown above), and push it onto the navigation controller, without having to add the navigation/toolbar items in coding (as I do it now).

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• Semi-complex aggregate select statement confusion

  - by Ian Henry

  Alright, this problem is a little complicated, so bear with me. I have a table full of data. One of the table columns is an EntryDate. There can be multiple entries per day. However, I want to select all rows that are the latest entry on their respective days, and I want to select all the columns of said table. One of the columns is a unique identifier column, but it is not the primary key (I have no idea why it's there; this is a pretty old system). For purposes of demonstration, say the table looks like this: create table ExampleTable ( ID int identity(1,1) not null, PersonID int not null, StoreID int not null, Data1 int not null, Data2 int not null, EntryDate datetime not null ) The primary key is on PersonID and StoreID, which logically defines uniqueness. Now, like I said, I want to select all the rows that are the latest entries on that particular day (for each Person-Store combination). This is pretty easy: --Figure 1 select PersonID, StoreID, max(EntryDate) from ExampleTable group by PersonID, StoreID, dbo.dayof(EntryDate) Where dbo.dayof() is a simple function that strips the time component from a datetime. However, doing this loses the rest of the columns! I can't simply include the other columns, because then I'd have to group by them, which would produce the wrong results (especially since ID is unique). I have found a dirty hack that will do what I want, but there must be a better way -- here's my current solution: select cast(null as int) as ID, PersonID, StoreID, cast(null as int) as Data1, cast(null as int) as Data2, max(EntryDate) as EntryDate into #StagingTable from ExampleTable group by PersonID, StoreID, dbo.dayof(EntryDate) update Target set ID = Source.ID, Data1 = Source.Data1, Data2 = Source.Data2, from #StagingTable as Target inner join ExampleTable as Source on Source.PersonID = Target.PersonID and Source.StoreID = Target.StoreID and Source.EntryDate = Target.EntryDate This gets me the correct data in #StagingTable but, well, look at it! Creating a table with null values, then doing an update to get the values back -- surely there's a better way to do this? A single statement that will get me all the values the first time? It is my belief that the correct join on that original select (Figure 1) would do the trick, like a self-join or something... but how do you do that with the group by clause? I cannot find the right syntax to make the query execute. I am pretty new with SQL, so it's likely that I'm missing something obvious. Any suggestions? (Working in T-SQL, if it makes any difference)

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• NSObjectController confusion binding to a class property. Help!

  - by scottw

  Hi, I'm teaching myself cocoa and enjoying the experience most of the time. I have been struggling all day with a simple problem that google has let me down on. I have read the Cocoa Bindings Program Topics and think I grok it but still can't solve my issue. I have a very simple class called MTSong that has various properties. I have used @synthesize to create getter/setters and can use KVC to change properties. i.e in my app controller the following works: mySong = [[MTSong alloc]init]; [mySong setValue:@"2" forKey:@"version"]; In case I am doing something noddy in my class code MTSong.h is: #import <Foundation/Foundation.h> @interface MTSong : NSObject { NSNumber *version; NSString *name; } @property(readwrite, assign) NSNumber *version; @property(readwrite, assign) NSString *name; @end and MTSong.m is: #import "MTSong.h" @implementation MTSong - (id)init { [super init]; return self; } - (void)dealloc { [super dealloc]; } @synthesize version; @synthesize name; @end In Interface Builder I have a label (NSTextField) that I want to update whenever I use KVC to change the version of the song. I do the following: Drag NSObjectController object into the doc window and in the Inspector-Attributes I set: Mode: Class Class Name: MTSong Add a key called version and another called name Go to Inspector-Bindings-Controller Content Bind To: File's Owner (Not sure this is right...) Model Key Path: version Select the cell of the label and go to Inspector Bind to: Object Controller Controller Key: mySong Model Key Path: version I have attempted changing the Model Key Path in step 2 to "mySong" which makes more sense but the compiler complains. Any suggestions would be greatly appreciated. Scott Update Post Comments I wasn't exposing mySong property so have changed my AppController.h to be: #import <Cocoa/Cocoa.h> @class MTSong; @interface AppController : NSObject { IBOutlet NSButton *start; IBOutlet NSTextField *tf; MTSong *mySong; } -(IBAction)convertFile:(id)sender; @end I suspect File's owner was wrong as I am not using a document based application and I need to bind to the AppController, so step 2 is now: Go to Inspector-Bindings-Controller Content Bind To: App Controller Model Key Path: mySong I needed to change 3. to Select the cell of the label and go to Inspector Bind to: Object Controller Controller Key: selection Model Key Path: version All compiles and is playing nice!

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• jquery and requirejs and knockout; reference requirejs object from within itself

  - by Thomas

  We use jquery and requirejs to create a 'viewmodel' like this: define('vm.inkoopfactuurAanleveren', ['jquery', 'underscore', 'ko', 'datacontext', 'router', 'messenger', 'config', 'store'], function ($, _, ko, datacontext, router, messenger, config, store) { var isBusy = false, isRefreshing = false, inkoopFactuur = { factuurNummer: ko.observable("AAA") }, activate = function (routeData, callback) { messenger.publish.viewModelActivated({ canleaveCallback: canLeave }); getNewInkoopFactuurAanleveren(callback); var restricteduploader = new qq.FineUploader({ element: $('#restricted-fine-uploader')[0], request: { endpoint: 'api/InkoopFactuurAanleveren', forceMultipart: true }, multiple: false, failedUploadTextDisplay: { mode: 'custom', maxChars: 250, responseProperty: 'error', enableTooltip: true }, text: { uploadButton: 'Click or Drop' }, showMessage: function (message) { $('#restricted-fine-uploader').append('<div class="alert alert-error">' + message + '</div>'); }, debug: true, callbacks: { onComplete: function (id, fileName, responseJSON) { var response = responseJSON; }, } }); }, invokeFunctionIfExists = function (callback) { if (_.isFunction(callback)) { callback(); } }, loaded = function (factuur) { inkoopFactuur = factuur; var ids = config.viewIds; ko.applyBindings(this, getView(ids.inkoopfactuurAanleveren)); /*<----- THIS = OUT OF SCOPE!*/ / }, bind = function () { }, saved = function (success) { var s = success; }, saveCmd = ko.asyncCommand({ execute: function (complete) { $.when(datacontext.saveNewInkoopFactuurAanleveren(inkoopFactuur)) .then(saved).always(complete); return; }, canExecute: function (isExecuting) { return true; } }), getView = function (viewName) { return $(viewName).get(0); }, getNewInkoopFactuurAanleveren = function (callback) { if (!isRefreshing) { isRefreshing = true; $.when(datacontext.getNewInkoopFactuurAanleveren(dataOptions(true))).then(loaded).always(invokeFunctionIfExists(callback)); isRefreshing = false; } }, dataOptions = function (force) { return { results: inkoopFactuur, // filter: sessionFilter, //sortFunction: sort.sessionSort, forceRefresh: force }; }, canLeave = function () { return true; }, forceRefreshCmd = ko.asyncCommand({ execute: function (complete) { //$.when(datacontext.sessions.getSessionsAndAttendance(dataOptions(true))) // .always(complete); complete; } }), init = function () { // activate(); // Bind jQuery delegated events //eventDelegates.sessionsListItem(gotoDetails); //eventDelegates.sessionsFavorite(saveFavorite); // Subscribe to specific changes of observables //addFilterSubscriptions(); }; init(); return { activate: activate, canLeave: canLeave, inkoopFactuur: inkoopFactuur, saveCmd: saveCmd, forceRefreshCmd: forceRefreshCmd, bind: bind, invokeFunctionIfExists: invokeFunctionIfExists }; }); On the line ko.applyBindings(this, getView(ids.inkoopfactuurAanleveren)); in the 'loaded' method the 'this' keyword doens't refer to the 'viewmodel' object. the 'self' keyword seems to refer to a combination on methods found over multiple 'viewmodels'. The saveCmd property is bound through knockout, but gives an error since it cannot be found. How can the ko.applyBindings get the right reference to the viewmodel? In other words, with what do we need to replace the 'this' keyword int he applyBindings. I would imagine you can 'ask' requirejs to give us the ealiers instantiated object with identifier 'vm.inkoopfactuurAanleveren' but I cannot figure out how.

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• Admob in iPhone with Tabbar and TableView

  - by satyam

  I'm having tab bar with 5 buttons. Out of 5 tabs, 2 are table views which uses navigation controller for showing sub views on click of cell. Above the tab bar, in each view I left some space for ads using "Admob". I'm adding ads using IB. But its giving EXC_BAD_ACCESS when its reaching "adMobAd = [AdMobView requestAdWithDelegate:self];" in AdViewController.m I'm using following lines of code to add views to tab bar view. In my code, I just added ads to LatestNews only. Can some one help me out of this problem. UINavigationController *localNavigationController; // create tab bar controller and array to hold the view controllers tabBarController = [[UITabBarController alloc] init]; NSMutableArray *localControllersArray = [[NSMutableArray alloc] initWithCapacity:5]; // setup the first view controller (Root view controller) LatestNews* latestNewsController; latestNewsController = [[LatestNews alloc] initWithTabBar]; // create the nav controller and add the root view controller as its first view localNavigationController = [[UINavigationController alloc] initWithRootViewController:latestNewsController]; // add the new nav controller (with the root view controller inside it) // to the array of controllers [localControllersArray addObject:localNavigationController]; // release since we are done with this for now [localNavigationController release]; [latestNewsController release]; // setup the second view controller just like the first Forums* forumsController; forumsController = [[Forums alloc] initWithTabBar]; localNavigationController = [[UINavigationController alloc] initWithRootViewController:forumsController]; [localControllersArray addObject:localNavigationController]; [localNavigationController release]; [forumsController release]; RecipeList* recipesController = [[RecipeList alloc] initWithTabBar]; localNavigationController = [[UINavigationController alloc] initWithRootViewController:recipesController]; [localControllersArray addObject:localNavigationController]; [localNavigationController release]; [recipesController release]; //Setup Connect view Connect* cnt = [[Connect alloc] initWithTabBar]; [localControllersArray addObject:cnt]; [cnt release]; //Setup Subscribe View Subscribe* scribe = [[Subscribe alloc] initWithTabBar]; [localControllersArray addObject:scribe]; [scribe release]; // load up our tab bar controller with the view controllers tabBarController.viewControllers = localControllersArray; [localControllersArray release]; [window addSubview:tabBarController.view]; [window makeKeyAndVisible];

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• JNI loses reference to native methods

  - by lhw

  As an example for later use in Android I wrote a simple callback interface. While doing so i ran into the following error or bug or whatever. In C the two commented lines are supposed to be executed resulting in calling the C callback onChange. But instead i get an UnsatisfiedLinkError. Calling the native Method directly in Java works just fine. Calling it directly from C as presented here in the example also produces the UnsatisfiedLinkError. I'm open for any advice concerning this issue or work arounds and so on. The Java Part: import java.util.LinkedList; import java.util.Random; interface Listener { public void onChange(float f); } class Provider { LinkedList<Listener> all; public Provider() { all = new LinkedList<Listener>(); } public void registerChange(Listener lst) { all.add(lst); } public void sendMsg() { Random rnd = new Random(); for(Listener l : all) { try { l.onChange(rnd.nextFloat()); } catch(Exception e) { System.out.println(e); } } } } class Inheritance implements Listener { static public void main(String[] args) { System.load(System.getProperty("user.dir") + "/libinheritance.so"); } public native void onChange(float f); } The C Part: #include "inheritance.h" jint JNI_OnLoad(JavaVM *jvm, void *reserved) { JNIEnv *env; (*jvm)->GetEnv(jvm, (void**)&env, JNI_VERSION_1_4); inheritance = (*env)->FindClass(env, "Inheritance"); o_inheritance = (*env)->NewObject(env, inheritance, (*env)->GetMethodID(env, inheritance, "<init>", "()V")); provider = (*env)->FindClass(env, "Provider"); o_provider = (*env)->NewObject(env, provider, (*env)->GetMethodID(env, provider, "<init>", "()V")); (*env)->CallVoidMethod(env, o_inheritance, (*env)->GetMethodID(env, inheritance, "onChange", "(F)V"), 1.0); //(*env)->CallVoidMethod(env, o_provider, (*env)->GetMethodID(env, provider, "registerChange", "(LListener;)V"), o_inheritance); //(*env)->CallVoidMethod(env, o_provider, (*env)->GetMethodID(env, provider, "sendMsg", "()V")); (*env)->DeleteLocalRef(env, o_inheritance); (*env)->DeleteLocalRef(env, o_provider); return JNI_VERSION_1_4; } JNIEXPORT void JNICALL Java_Inheritance_onChange(JNIEnv *env, jobject self, jfloat f) { printf("[C] %f\n", f); } The header file: #include <jni.h> /* Header for class Inheritance */ #ifndef _Included_Inheritance #define _Included_Inheritance #ifdef __cplusplus extern "C" { #endif jclass inheritance, provider; jobject o_inheritance, o_provider; /* * Class: Inheritance * Method: onChange * Signature: (F)V */ JNIEXPORT void JNICALL Java_Inheritance_onChange(JNIEnv *, jobject, jfloat); jint JNI_OnLoad(JavaVM *, void *); #ifdef __cplusplus } #endif #endif Compilation: gcc -c -fPIC -I /usr/lib/jvm/java-6-openjdk/include -I /usr/lib/jvm/java-6-openjdk/include/linux/inheritance.c inheritance.h gcc -g -o -shared libinheritance.so -shared -Wl,-soname,libinheritance.so -lc inheritance.o

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• WebHttpBinding: Log all errors to service logfile

  - by W van Noort

  I have a self-hosted WCF service that uses a WebHttpBinding. In the implementation of the service, all exceptions are caught and a appropriate message is returned to the caller. All exceptions are also logged to the service logfile. catch (Exception ex) { _log.Error("Error posting message", ex); WebOperationContext.Current.OutgoingResponse.StatusCode = HttpStatusCode.InternalServerError; return string.Format("{0}:error={1}", (int)HttpStatusCode.InternalServerError, ex.Message); } However, some situations are intercepted by the WCF framework. e.g.: when the client sends a message that exceeds the configured quotum, i never get an entry in my log file. In fact, i only found this, by adding this to the config file, and inspecting the generated trace file. <system.diagnostics> <sources> <source name="System.ServiceModel" switchValue="Information, ActivityTracing" propagateActivity="true"> <listeners> <add name="xml" /> </listeners> </source> <source name="CardSpace"> <listeners> <add name="xml" /> </listeners> </source> <source name="System.IO.Log"> <listeners> <add name="xml" /> </listeners> </source> <source name="System.Runtime.Serialization"> <listeners> <add name="xml" /> </listeners> </source> <source name="System.IdentityModel"> <listeners> <add name="xml" /> </listeners> </source> </sources> <sharedListeners> <add name="xml" type="System.Diagnostics.XmlWriterTraceListener" initializeData="c:\test\Traces.svclog" /> </sharedListeners> Is there a way to get these kind of errors visible in my own logfile?

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• How to crop or get a smaller size UIImage in iPhone without memory leaks?

  - by rkbang

  Hello all, I am using a navigation controller in which I push a tableview Controller as follows: TableView *Controller = [[TableView alloc] initWithStyle:UITableViewStylePlain]; [self.navigationController pushViewController:Controller animated:NO]; [Controller release]; In this table view I am using following two methods to display images: - (UIImage*) getSmallImage:(UIImage*) img { CGSize size = img.size; CGFloat ratio = 0; if (size.width < size.height) { ratio = 36 / size.width; } else { ratio = 36 / size.height; } CGRect rect = CGRectMake(0.0, 0.0, ratio * size.width, ratio * size.height); UIGraphicsBeginImageContext(rect.size); [img drawInRect:rect]; return UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); } - (UIImage*)imageByCropping:(UIImage *)imageToCrop toRect:(CGRect)rect { //create a context to do our clipping in UIGraphicsBeginImageContext(rect.size); CGContextRef currentContext = UIGraphicsGetCurrentContext(); //create a rect with the size we want to crop the image to //the X and Y here are zero so we start at the beginning of our //newly created context CGFloat X = (imageToCrop.size.width - rect.size.width)/2; CGFloat Y = (imageToCrop.size.height - rect.size.height)/2; CGRect clippedRect = CGRectMake(X, Y, rect.size.width, rect.size.height); //CGContextClipToRect( currentContext, clippedRect); //create a rect equivalent to the full size of the image //offset the rect by the X and Y we want to start the crop //from in order to cut off anything before them CGRect drawRect = CGRectMake(0, 0, imageToCrop.size.width, imageToCrop.size.height); CGContextTranslateCTM(currentContext, 0.0, drawRect.size.height); CGContextScaleCTM(currentContext, 1.0, -1.0); //draw the image to our clipped context using our offset rect //CGContextDrawImage(currentContext, drawRect, imageToCrop.CGImage); CGImageRef tmp = CGImageCreateWithImageInRect(imageToCrop.CGImage, clippedRect); //pull the image from our cropped context UIImage *cropped = [UIImage imageWithCGImage:tmp];//UIGraphicsGetImageFromCurrentImageContext(); CGImageRelease(tmp); //pop the context to get back to the default UIGraphicsEndImageContext(); //Note: this is autoreleased*/ return cropped; } But when I pop the Controller, the memory being used is not released. Is there any leaks in the above code used to create and crop images. Also are there any efficient method to deal with images in iPhone. I am having a lot of images and facing major challeges in resolving the memory issues. tnx in advance.

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• Control third check box based on the state of the first two using jquery

  - by Moj

  I have three check boxes and need to disable the third if either and/or of the other two are checked. I'm sure there's a easier way than what I have currently. It's turning into what I believe is a mess and I'm hoping that someone with more jquery knowledge can shine the light here. Here's my simple html form: <html> <head> <script type="text/javascript" src="jquery.js"></script> <script src="custom.js" type="text/javascript"></script> </head> <body> <input type="checkbox" class="class" id="1">First <input type="checkbox" class="class" id="2">Second <input type="checkbox" class="class" id="3">Third </body> </html> Here's the javascript I'm using with jquery v1.4.2 jQuery(document).ready(function() { // watches the events of all checkboxes $(":checkbox").click(function(){ if( // if both 1 and 2 are checked we don't want to enable Third until both are unchecked. (($('#1:checkbox').attr('checked'))&&($('#2:checkbox').attr('checked')))|| ((($('#1:checkbox').attr('checked'))&&($('#2:checkbox').attr('checked')))&&($('#3:checkbox').attr('disabled')))|| ((($('#1:checkbox').attr('checked'))||($('#2:checkbox').attr('checked')))&&($('#3:checkbox').attr('disabled'))) ){ // we don't want to do anything in the above events } else if( // handles the First check box (($('#1:checkbox').attr('checked'))||(!$('#1:checkbox').attr('checked')))|| // handles the Second check box (($('#2:checkbox').attr('checked'))||(!$('#2:checkbox').attr('checked'))) ){ // call the disableThird function disableThird(); } }); // handles enabling and disabling the Third checkbox function disableThird(){ var $checkbox = $('#3:checkbox'); $checkbox.attr('disabled', !$checkbox.attr('disabled')); }; }); For some reason checking #3 will disable it's self. I don't understand why. This works, but one of the requirements is that a non programmer should be able to edit and maintain this. Ideally it'd be great if he could just add new check boxes to the html and it would work. The class for these are define and as far as I know can't be changed. The last check box in the list of check boxes will disable if any of the ones above are selected. Like wise if the last check box is selected, it will disable all the ones above it. I haven't even begun writing and testing that portion as this is quickly becoming too complicated for a non programmer to handle. I myself am more of a PHP coder than a js, let alone jquery, coder. Any help would be greatly appreciated.

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• Trouble animating RadialGradientBrush in WPF

  - by emddudley

  I'm trying to animate a RadialGradientBrush in my application. I get the super helpful exception: Additional information: 'System.Windows.Style' value cannot be assigned to property 'Style' of object 'System.Windows.Controls.Border'. '[Unknown]' property does not point to a DependencyObject in path '(0).(1).[0].(2)'. Error at object 'System.Windows.Style' in markup file 'Eng.Modules.Core;component/system/grid/systemgridview.xaml' Line 252 Position 51. I know it's something wrong with the indirect property targeting or partial path qualification in my DoubleAnimation's Storyboard.TargetProperty attribute. Any ideas? <Border> <Border.Resources> <RadialGradientBrush x:Key="SomeBrush"> <RadialGradientBrush.GradientStops> <GradientStop Color="White" Offset="0" /> <GradientStop Color="Gold" Offset="1" /> </RadialGradientBrush.GradientStops> </RadialGradientBrush> </Border.Resources> <Border.Style> <Style TargetType="{x:Type Border}"> <Style.Triggers> <DataTrigger Binding="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}}" Value="True"> <Setter Property="Background" Value="{StaticResource SomeBrush}" /> <DataTrigger.EnterActions> <BeginStoryboard x:Name="SomeStoryBoard"> <Storyboard> <!-- RIGHT HERE --> <DoubleAnimation Storyboard.TargetProperty="(Border.Background).(GradientBrush.GradientStops)[0].(GradientStop.Offset)" From="0" To="1" Duration="0:0:1" RepeatBehavior="Forever" AutoReverse="True" /> </Storyboard> </BeginStoryboard> </DataTrigger.EnterActions> <DataTrigger.ExitActions> <RemoveStoryboard BeginStoryboardName="SomeStoryBoard" /> </DataTrigger.ExitActions> </DataTrigger> </Style.Triggers> </Style> </Border.Style> </Border>

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• What should I do when the managed object context fails to save?

  - by dontWatchMyProfile

  Example: I have an Cat entity with an catAge attribute. In the data modeler, I configured catAge as int with a max of 100. Then I do this: [newManagedObject setValue:[NSNumber numberWithInt:125] forKey:@"catAge"]; // Save the context. NSError *error = nil; if (![context save:&error]) { NSLog(@"Unresolved error %@, %@", error, [error userInfo]); } I'm getting an error in the console, like this: 2010-06-12 11:40:41.947 CatTest[2250:207] Unresolved error Error Domain=NSCocoaErrorDomain Code=1610 UserInfo=0x10164d0 "Operation could not be completed. (Cocoa error 1610.)", { NSLocalizedDescription = "Operation could not be completed. (Cocoa error 1610.)"; NSValidationErrorKey = catAge; NSValidationErrorObject = <NSManagedObject: 0x10099f0> (entity: Cat; id: 0x1006a90 <x-coredata:///Cat/t3BCBC34B-8405-4F16-B591-BE804B6811562> ; data: { catAge = 125; catName = "No Name"; }); NSValidationErrorPredicate = SELF <= 100; NSValidationErrorValue = 125; } Well, so I have an validation error. But the odd thing is, that it seems the MOC is broken after this. If I just tap "add" to add another invalid Cat object and save that, I'm getting this: 2010-06-12 11:45:13.857 CatTest[2250:207] Unresolved error Error Domain=NSCocoaErrorDomain Code=1560 UserInfo=0x1232170 "Operation could not be completed. (Cocoa error 1560.)", { NSDetailedErrors = ( Error Domain=NSCocoaErrorDomain Code=1610 UserInfo=0x1215f00 "Operation could not be completed. (Cocoa error 1610.)", Error Domain=NSCocoaErrorDomain Code=1610 UserInfo=0x1209fc0 "Operation could not be completed. (Cocoa error 1610.)" ); } That seems to report two errors now. BUT: When I try to delete now an valid, existing object from the table view (using the default core data template in a navigation-based app), then the app crashes! All I get in the console is: 2010-06-12 11:47:18.931 CatTest[2250:207] Unresolved error Error Domain=NSCocoaErrorDomain Code=1560 UserInfo=0x123eb30 "Operation could not be completed. (Cocoa error 1560.)", { NSDetailedErrors = ( Error Domain=NSCocoaErrorDomain Code=1610 UserInfo=0x1217010 "Operation could not be completed. (Cocoa error 1610.)", Error Domain=NSCocoaErrorDomain Code=1610 UserInfo=0x123ea80 "Operation could not be completed. (Cocoa error 1610.)" ); } ...so no idea where or why it crashes, but it does. So the question is, what are the neccessary steps to take when there's an validation error?

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• Using will_paginate with AJAX live search with jQuery in Rails

  - by Mark Richman

  I am using will_paginate to successfully page through records. I am also using AJAX live search via jQuery to update my results div. No problem so far. The issue I have is when trying to paginate through those live search results. I simply get "Page is loading..." with no div update. Am I missing something fundamental? # index.html.erb <form id="searchform" accept-charset="utf-8" method="get" action="/search"> Search: <input id="search" name="search" type="text" autocomplete="off" title="Search location, company, description..." /> <%= image_tag("spinner.gif", :id => "spinner", :style =>"display: none;" ) %> </form> # JobsController#search def search if params[:search].nil? @jobs = Job.paginate :page => params[:page], :order => "created_at desc" elsif params[:search] and request.xhr? @jobs = Job.search params[:search], params[:page] end render :partial => "jobs", :layout => false, :locals => { :jobs => @jobs } end # Job#search def self.search(search, page) logger.debug "Job.paginate #{search}, #{page}" paginate :per_page => @@per_page, :page => page, :conditions => ["description LIKE ? or title LIKE ? or company LIKE ?", "%#{search}%", "%#{search}%", "%#{search}%"], :order => 'created_at DESC' end # search.js $(document).ready(function(){ $("#search").keyup(function() { $("#spinner").show(); // show the spinner var form = $(this).parents("form"); // grab the form wrapping the search bar. var url = form.attr("action"); // grab the URL from the form's action value. var formData = form.serialize(); // grab the data in the form $.get(url, formData, function(html) { // perform an AJAX get, the trailing function is what happens on successful get. $("#spinner").hide(); // hide the spinner $("#jobs").html(html); // replace the "results" div with the result of action taken }); }); });

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• Ivy and Snapshots (Nexus)

  - by Uberpuppy

  Hey folks, I'm using ant, ivy and nexus repo manager to build and store my artifacts. I managed to get everything working: dependency resolution and publishing. Until I hit a problem... (of course!). I was publishing to a 'release' repo in nexus, which is locked to 'disable redeploy' (even if you change the setting to 'allow redeploy' (really lame UI there imo). You can imagine how pissed off I was getting when my changes weren't updating through the repo before I realised that this was happening. Anyway, I now have to switch everything to use a 'Snapshot' repo in nexus. Problem is that this messes up my publish. I've tried a variety of things, including extensive googling, and haven't got anywhere whatsoever. The error I get is a bad PUT request, error code 400. Can someone who has got this working please give me a pointer on what I'm missing. Many thanks, Alastair fyi, here's my config: Note that I have removed any attempts at getting snapshots to work as I didn't know what was actually (potentially) useful and what was complete guff. This is therefore the working release-only setup. Also, please note that I've added the XXX-API ivy.xml for info only. I can't even get the xxx-common to publish (and that doesn't even have dependencies). Ant task: <target name="publish" depends="init-publish"> <property name="project.generated.ivy.file" value="${project.artifact.dir}/ivy.xml"/> <property name="project.pom.file" value="${project.artifact.dir}/${project.handle}.pom"/> <echo message="Artifact dir: ${project.artifact.dir}"/> <ivy:deliver deliverpattern="${project.generated.ivy.file}" organisation="${project.organisation}" module="${project.artifact}" status="integration" revision="${project.revision}" pubrevision="${project.revision}" /> <ivy:resolve /> <ivy:makepom ivyfile="${project.generated.ivy.file}" pomfile="${project.pom.file}"/> <ivy:publish resolver="${ivy.omnicache.publisher}" module="${project.artifact}" organisation="${project.organisation}" revision="${project.revision}" pubrevision="${project.revision}" pubdate="now" overwrite="true" publishivy="true" status="integration" artifactspattern="${project.artifact.dir}/[artifact]-[revision](-[classifier]).[ext]" /> </target> Couple of ivy files to give an idea of internal dependencies: XXX-Common project: <ivy-module version="2.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="http://ant.apache.org/ivy/schemas/ivy.xsd"> <info organisation="com.myorg.xxx" module="xxx_common" status="integration" revision="1.0"> </info> <publications> <artifact name="xxx_common" type="jar" ext="jar"/> <artifact name="xxx_common" type="pom" ext="pom"/> </publications> <dependencies> </dependencies> </ivy-module> XXX-API project: <ivy-module version="2.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="http://ant.apache.org/ivy/schemas/ivy.xsd"> <info organisation="com.myorg.xxx" module="xxx_api" status="integration" revision="1.0"> </info> <publications> <artifact name="xxx_api" type="jar" ext="jar"/> <artifact name="xxx_api" type="pom" ext="pom"/> </publications> <dependencies> <dependency org="com.myorg.xxx" name="xxx_common" rev="1.0" transitive="true" /> </dependencies> </ivy-module> IVY Settings.xml: <ivysettings> <properties file="${ivy.project.dir}/project.properties" /> <settings defaultResolver="chain" defaultConflictManager="all" /> <credentials host="${ivy.credentials.host}" realm="Sonatype Nexus Repository Manager" username="${ivy.credentials.username}" passwd="${ivy.credentials.passwd}" /> <caches> <cache name="ivy.cache" basedir="${ivy.cache.dir}" /> </caches> <resolvers> <ibiblio name="xxx_publisher" m2compatible="true" root="${ivy.xxx.publish.url}" /> <chain name="chain"> <url name="xxx"> <ivy pattern="${ivy.xxx.repo.url}/com/myorg/xxx/[module]/[revision]/ivy-[revision].xml" /> <artifact pattern="${ivy.xxx.repo.url}/com/myorg/xxx/[module]/[revision]/[artifact]-[revision].[ext]" /> </url> <ibiblio name="xxx" m2compatible="true" root="${ivy.xxx.repo.url}"/> <ibiblio name="public" m2compatible="true" root="${ivy.master.repo.url}" /> <url name="com.springsource.repository.bundles.release"> <ivy pattern="http://repository.springsource.com/ivy/bundles/release/[organisation]/[module]/[revision]/[artifact]-[revision].[ext]" /> <artifact pattern="http://repository.springsource.com/ivy/bundles/release/[organisation]/[module]/[revision]/[artifact]-[revision].[ext]" /> </url> <url name="com.springsource.repository.bundles.external"> <ivy pattern="http://repository.springsource.com/ivy/bundles/external/[organisation]/[module]/[revision]/[artifact]-[revision].[ext]" /> <artifact pattern="http://repository.springsource.com/ivy/bundles/external/[organisation]/[module]/[revision]/[artifact]-[revision].[ext]" /> </url> </chain> </resolvers> </ivysettings>

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• UIScrollView ImageView with pins on top

  - by Koppo

  To all, I have a UIScrollView which has a UIImageView. I want to show pins on this imageView. When I add pins as subviews of the ImageView everything is great except for when you zoom the scale transform happens on the pins also. I don't want this behavior and want my pins to stay the same. So I choose to add the Pins to another view which sits on top of the ImageView and is also a subview of the UIScrollView. The idea here if you will imagine is to have a layer which hovers over the map and won't scale yet show pins over where I plot them. The pin when added to the layer view don't cale if the ImageView scales. However the issue then bceomes the position of the pins doesn't match the original origin x/y as the ImageView has had a scale transform. Basically this is a custom map of a place with Pins. I am trying to have the Pins float over and not zoom in and out over my ImageView yet remember where I placed them when the zoom happens. Some code scrollView = [[UIScrollView alloc] initWithFrame:viewRect]; scrollView.delegate = self; scrollView.pagingEnabled = NO; scrollView.scrollsToTop = NO; [scrollView setBackgroundColor:[UIColor clearColor]]; scrollView.clipsToBounds = YES; // default is NO, we want to restrict drawing within our scrollview scrollView.bounces = YES; scrollView.autoresizingMask = UIViewAutoresizingFlexibleHeight; scrollView.indicatorStyle = UIScrollViewIndicatorStyleWhite; imageViewMap = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"image.png"]]; imageViewMap.userInteractionEnabled = YES; viewRect = CGRectMake(0,0,imageViewMap.image.size.width,imageViewMap.image.size.height); //viewRect = CGRectMake(0,0,2976,3928); [scrollView addSubview:imageViewMap]; [scrollView setContentSize:CGSizeMake(viewRect.size.width, viewRect.size.height)]; iconsView = [[UIView alloc] initWithFrame:imageViewMap.frame]; [scrollView addSubview:iconsView]; Code to add Pin later on some event. [iconsView addSubview:pinIcon]; I am stuck in trying tp figure out how to to get my pins to hover on the map without moving when the scale happens. Thanks

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• IOS - Performance Issues with SVProgressHUD

  - by ScottOBot

  I have a section of code that is producing pour performance and not working as expected. it utilizes the SVProgressHUD from the following github repository at https://github.com/samvermette/SVProgressHUD. I have an area of code where I need to use [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error]. I want to have a progress hud displayed before the synchronous request and then dismissed after the request has finished. Here is the code in question: //Display the progress HUB [SVProgressHUD showWithStatus:@"Signing Up..." maskType:SVProgressHUDMaskTypeClear]; NSError* error; NSURLResponse *response = nil; [self setUserCredentials]; // create json object for a users session NSDictionary* session = [NSDictionary dictionaryWithObjectsAndKeys: firstName, @"first_name", lastName, @"last_name", email, @"email", password, @"password", nil]; NSData *jsonSession = [NSJSONSerialization dataWithJSONObject:session options:NSJSONWritingPrettyPrinted error:&error]; NSString *url = [NSString stringWithFormat:@"%@api/v1/users.json", CoffeeURL]; NSURL *URL = [NSURL URLWithString:url]; NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:URL cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:30.0]; [request setHTTPMethod:@"POST"]; [request setValue:@"application/json" forHTTPHeaderField:@"Accept"]; [request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"]; [request setValue:[NSString stringWithFormat:@"%d", [jsonSession length]] forHTTPHeaderField:@"Content-Length"]; [request setHTTPBody:jsonSession]; NSData *data = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error]; NSString *dataString = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]; NSDictionary *JSONResponse = [NSJSONSerialization JSONObjectWithData:[dataString dataUsingEncoding:NSUTF8StringEncoding] options:NSJSONReadingMutableContainers error:&error]; NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *)response; NSInteger statusCode = httpResponse.statusCode; NSLog(@"Status: %d", statusCode); if (JSONResponse != nil && statusCode == 200) { //Dismiss progress HUB here [SVProgressHUD dismiss]; return YES; } else { [SVProgressHUD dismiss]; return NO; } For some reason the synchronous request blocks the HUB from being displayed. It displays immediately after the synchronous request happens, unfortunatly this is also when it is dismissed. The behaviour displayed to the user is that the app hangs, waits for the synchronous request to finish, quickly flashes the HUB and then becomes responsive again. How can I fix this issue? I want the SVProgressHUB to be displayed during this hang time, how can I do this?

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• DUnit: How to run tests?

  - by Ian Boyd

  How do i run TestCase's from the IDE? i created a new project, with a single, simple, form: unit Unit1; interface uses Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls; type TForm1 = class(TForm) private public end; var Form1: TForm1; implementation {$R *.DFM} end. Now i'll add a test case to check that pushing Button1 does what it should: unit Unit1; interface uses Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls; type TForm1 = class(TForm) Button1: TButton; procedure Button1Click(Sender: TObject); private public end; var Form1: TForm1; implementation {$R *.DFM} uses TestFramework; type TForm1Tests = class(TTestCase) private f: TForm1; protected procedure SetUp; override; procedure TearDown; override; published procedure TestButton1Click; end; procedure TForm1.Button1Click(Sender: TObject); begin //todo end; { TForm1Tests } procedure TForm1Tests.SetUp; begin inherited; f := TForm1.Create(nil); end; procedure TForm1Tests.TearDown; begin f.Free; inherited; end; procedure TForm1Tests.TestButton1Click; begin f.Button1Click(nil); Self.CheckEqualsString('Hello, world!', f.Caption); end; end. Given what i've done (test code in the GUI project), how do i now trigger a run of the tests? If i push F9 then the form simply appears: Ideally there would be a button, or menu option, in the IDE saying Run DUnit Tests: Am i living in a dream-world? A fantasy land, living in a gumdrop house on lollipop lane?

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• .NET: understanding web.config in asp.net

  - by mark smith

  Hi there, Does anyone know of a good link to explain how to use the web.config...... For example, i am using forms authentication... and i notice there is a system.web and then it closed /system.web and then below configuration there are additional location tags here is an example, if you ntoice there is an authentication mode=forms with authorization i presume this is the ROOT....... It is also self contained within a system.web .... Below this there are more location= with system.web tags.... I have never really understand what i am actually doing.. I have tried checkign the MSDN documentation but still i don't fully understand up.... Can anyone help? If you notice with my example.... everything is stored in 1 web.config... i thought the standard waas create a standard web.config and then create another web.config in the directory where i wish to protect it..??? <configuration> <system.web> <compilation debug="true" strict="false" explicit="true" targetFramework="4.0" /> <authentication mode="Forms"> <forms loginUrl="Login.aspx" defaultUrl="Login.aspx" cookieless="UseCookies" timeout="60"/> </authentication> <authorization> <allow users="*"/> </authorization> </system.web> <location path="Forms"> <system.web> <authorization> <deny users="?"/> <allow users="*"/> </authorization> </system.web> </location> <location path="Forms/Seguridad"> <system.web> <authorization> <allow roles="Administrador"/> <deny users="?"/> </authorization> </system.web> </location>

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• What'd be a good pattern on Doctrine to have multiple languages

  - by PERR0_HUNTER

  Hi! I have this challenge which consist in having a system that offers it's content in multiple languages, however a part of the data contained in the system is not translatable such as dates, ints and such. I mean if I have a content on the following YAML Corporativos: columns: nombre: type: string(254) notnull: true telefonos: type: string(500) email: type: string(254) webpage: type: string(254) CorporativosLang: columns: corporativo_id: type: integer(8) notnull: true lang: type: string(16) fixed: false ubicacion: type: string() fixed: false unsigned: false primary: false notnull: true autoincrement: false contacto: type: string() fixed: false unsigned: false primary: false notnull: true autoincrement: false tipo_de_hoteles: type: string(254) fixed: false unsigned: false primary: false notnull: true autoincrement: false paises: type: string() fixed: false unsigned: false primary: false notnull: true autoincrement: false relations: Corporativo: class: Corporativos local: corporativo_id foreign: id type: one foreignAlias: Data This would allow me to have different corporative offices, however the place of the corp, the contact and other things can be translate into a different language (lang) Now this code here would create me a brand new corporative office with 2 translations $corporativo = new Corporativos(); $corporativo->nombre = 'Duck Corp'; $corporativo->telefonos = '66303713333'; $corporativo->email = '[email protected]'; $corporativo->webpage = 'http://quack.com'; $corporativo->Data[0]->lang = 'en'; $corporativo->Data[0]->ubicacion = 'zomg'; $corporativo->Data[1]->lang = 'es'; $corporativo->Data[1]->ubicacion = 'zomg amigou'; the thing now is I don't know how to retrieve this data in a more friendly way, because if I'd like to access my Corporative info in english I'd had to run DQL for the corp and then another DQL for the specific translation in english, What I'd love to do is have my translatable fields available in the root so I could simply access them $corporativo = new Corporativos(); $corporativo->nombre = 'Duck Corp'; $corporativo->telefonos = '66303713333'; $corporativo->email = '[email protected]'; $corporativo->webpage = 'http://quack.com'; $corporativo->lang = 'en'; $corporativo->ubicacion = 'zomg'; this way the translatable fields would be mapped to the second table automatically. I hope I can explain my self clear :( any suggestions ?

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• Inline-editing: onBlur prevents onClick from being triggered (jQuery)

  - by codethief

  Hello StackOverflow community! I'm currently working on my own jQuery plugin for inline-editing as those that already exist don't fit my needs. Anyway, I'd like to give the user the following (boolean) options concerning the way editing is supposed to work: submit_button reset_on_blur Let's say the user would like to have a submit button (submit_button = true) and wants the inline input element to be removed as soon as it loses focus (reset_on_blur = true). This leads to an onClick handler being registered for the button and an onBlur handler being registered for the input element. Every time the user clicks the button, however, the onBlur handler is also triggered and results in the edit mode being left, i.e. before the onClick event occurs. This makes submitting impossible. FYI, the HTML in edit mode looks like this: <td><input type="text" class="ie-input" value="Current value" /><div class="ie-content-backup" style="display: none;">Backup Value</div><input type="submit" class="ie-button-submit" value="Save" /></td> So, is there any way I could check in the onBlur handler if the focus was lost while activating the submit button, so that edit mode isn't left before the submit button's onClick event is triggered? I've also tried to register a $('body').click() handler to simulate blur and to be able to trace back which element has been clicked, but that didn't work either and resulted in rather strange bugs: $('html').click(function(e) { // body doesn't span over full page height, use html instead // Don't reset if the submit button, the input element itself or the element to be edited inline was clicked. if(!$(e.target).hasClass('ie-button-submit') && !$(e.target).hasClass('ie-input') && $(e.target).get(0) != element.get(0)) { cancel(element); } }); jEditable uses the following piece of code. I don't like this approach, though, because of the delay. Let alone I don't even understand why this works. ;) input.blur(function(e) { /* prevent canceling if submit was clicked */ t = setTimeout(function() { reset.apply(form, [settings, self]); }, 500); }); Thanks in advance!

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• echo XML values

  - by danit

  Here is my XML: object(SimpleXMLElement)#1 (2) { ["@attributes"]=> array(1) { ["type"]=> string(5) "array" } ["feed"]=> array(3) { [0]=> object(SimpleXMLElement)#2 (6) { ["title"]=> string(34) "Twitter / Favorites from bob" ["id"]=> string(27) "tag:twitter.com,2007:Status" ["link"]=> array(2) { [0]=> object(SimpleXMLElement)#5 (1) { ["@attributes"]=> array(3) { ["type"]=> string(9) "text/html" ["href"]=> string(38) "http://twitter.com/bob/favorites" ["rel"]=> string(9) "alternate" } } [1]=> object(SimpleXMLElement)#6 (1) { ["@attributes"]=> array(3) { ["type"]=> string(20) "application/atom+xml" ["href"]=> string(40) "http://twitter.com/favorites.atom?page=1" ["rel"]=> string(4) "self" } } } ["updated"]=> string(25) "2010-04-01T10:44:19+00:00" ["subtitle"]=> string(56) "Twitter updates favorited by Dan Humpherson / MoodleDan." ["entry"]=> array(20) { [0]=> object(SimpleXMLElement)#7 (7) { ["title"]=> string(104) "smashingmag: Sikuli: a visual technology to search and automate GUIs using images - http://bit.ly/6ArwzP" ["content"]=> string(104) "smashingmag: Sikuli: a visual technology to search and automate GUIs using images - http://bit.ly/6ArwzP" ["id"]=> string(72) "tag:twitter.com,2007:http://twitter.com/smashingmag/statuses/11389386545" ["published"]=> string(25) "2010-03-31T22:06:41+00:00" ["updated"]=> string(25) "2010-03-31T22:06:41+00:00" ["link"]=> array(2) { [0]=> object(SimpleXMLElement)#27 (1) { ["@attributes"]=> array(3) { ["type"]=> string(9) "text/html" ["href"]=> string(51) "http://twitter.com/smashingmag/statuses/11389386545" ["rel"]=> string(9) "alternate" } } [1]=> object(SimpleXMLElement)#28 (1) { ["@attributes"]=> array(3) { ["type"]=> string(10) "image/jpeg" ["href"]=> string(64) "http://a3.twimg.com/profile_images/572829723/original_normal.jpg" ["rel"]=> string(5) "image" } } } ["author"]=> object(SimpleXMLElement)#29 (2) { ["name"]=> string(17) "Smashing Magazine" ["uri"]=> string(31) "http://www.smashingmagazine.com" } } For the life of me I cannot get my code to work, all I want to do is echo the entry->content string but no matter what I try I get nothing. Can anyone assist an inept PHP n00b?

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• OpenGL - Frustum not culling polygons beyond far plane

  - by Pladnius Brooks

  I have implemented frustum culling and am checking the bounding box for its intersection with the frustum planes. I added the ability to pause frustum updates which lets me see if the frustum culling has been working correctly. When I turn around after I have paused it, nothing renders behind me and to the left and right side, they taper off as well just as you would expect. Beyond the clip distance (far plane), they still render and I am not sure whether it is a problem with my frustum updating or bounding box checking code or I am using the wrong matrix or what. As I put the distance in the projection matrix at 3000.0f, it still says that bounding boxes well past that are still in the frustum, which isn't the case. Here is where I create my modelview matrix: projectionMatrix = glm::perspective(newFOV, 4.0f / 3.0f, 0.1f, 3000.0f); viewMatrix = glm::mat4(1.0); viewMatrix = glm::scale(viewMatrix, glm::vec3(1.0, 1.0, -1.0)); viewMatrix = glm::rotate(viewMatrix, anglePitch, glm::vec3(1.0, 0.0, 0.0)); viewMatrix = glm::rotate(viewMatrix, angleYaw, glm::vec3(0.0, 1.0, 0.0)); viewMatrix = glm::translate(viewMatrix, glm::vec3(-x, -y, -z)); modelViewProjectiomMatrix = projectionMatrix * viewMatrix; The reason I scale it by -1 in the Z direction is because the levels were designed to be rendered with DirectX so I reverse the Z direction. Here is where I update my frustum: void CFrustum::calculateFrustum() { glm::mat4 mat = camera.getModelViewProjectionMatrix(); // Calculate the LEFT side m_Frustum[LEFT][A] = (mat[0][3]) + (mat[0][0]); m_Frustum[LEFT][B] = (mat[1][3]) + (mat[1][0]); m_Frustum[LEFT][C] = (mat[2][3]) + (mat[2][0]); m_Frustum[LEFT][D] = (mat[3][3]) + (mat[3][0]); // Calculate the RIGHT side m_Frustum[RIGHT][A] = (mat[0][3]) - (mat[0][0]); m_Frustum[RIGHT][B] = (mat[1][3]) - (mat[1][0]); m_Frustum[RIGHT][C] = (mat[2][3]) - (mat[2][0]); m_Frustum[RIGHT][D] = (mat[3][3]) - (mat[3][0]); // Calculate the TOP side m_Frustum[TOP][A] = (mat[0][3]) - (mat[0][1]); m_Frustum[TOP][B] = (mat[1][3]) - (mat[1][1]); m_Frustum[TOP][C] = (mat[2][3]) - (mat[2][1]); m_Frustum[TOP][D] = (mat[3][3]) - (mat[3][1]); // Calculate the BOTTOM side m_Frustum[BOTTOM][A] = (mat[0][3]) + (mat[0][1]); m_Frustum[BOTTOM][B] = (mat[1][3]) + (mat[1][1]); m_Frustum[BOTTOM][C] = (mat[2][3]) + (mat[2][1]); m_Frustum[BOTTOM][D] = (mat[3][3]) + (mat[3][1]); // Calculate the FRONT side m_Frustum[FRONT][A] = (mat[0][3]) + (mat[0][2]); m_Frustum[FRONT][B] = (mat[1][3]) + (mat[1][2]); m_Frustum[FRONT][C] = (mat[2][3]) + (mat[2][2]); m_Frustum[FRONT][D] = (mat[3][3]) + (mat[3][2]); // Calculate the BACK side m_Frustum[BACK][A] = (mat[0][3]) - (mat[0][2]); m_Frustum[BACK][B] = (mat[1][3]) - (mat[1][2]); m_Frustum[BACK][C] = (mat[2][3]) - (mat[2][2]); m_Frustum[BACK][D] = (mat[3][3]) - (mat[3][2]); // Normalize all the sides NormalizePlane(m_Frustum, LEFT); NormalizePlane(m_Frustum, RIGHT); NormalizePlane(m_Frustum, TOP); NormalizePlane(m_Frustum, BOTTOM); NormalizePlane(m_Frustum, FRONT); NormalizePlane(m_Frustum, BACK); } And finally, where I check the bounding box: bool CFrustum::BoxInFrustum( float x, float y, float z, float x2, float y2, float z2) { // Go through all of the corners of the box and check then again each plane // in the frustum. If all of them are behind one of the planes, then it most // like is not in the frustum. for(int i = 0; i < 6; i++ ) { if(m_Frustum[i][A] * x + m_Frustum[i][B] * y + m_Frustum[i][C] * z + m_Frustum[i][D] > 0) continue; if(m_Frustum[i][A] * x2 + m_Frustum[i][B] * y + m_Frustum[i][C] * z + m_Frustum[i][D] > 0) continue; if(m_Frustum[i][A] * x + m_Frustum[i][B] * y2 + m_Frustum[i][C] * z + m_Frustum[i][D] > 0) continue; if(m_Frustum[i][A] * x2 + m_Frustum[i][B] * y2 + m_Frustum[i][C] * z + m_Frustum[i][D] > 0) continue; if(m_Frustum[i][A] * x + m_Frustum[i][B] * y + m_Frustum[i][C] * z2 + m_Frustum[i][D] > 0) continue; if(m_Frustum[i][A] * x2 + m_Frustum[i][B] * y + m_Frustum[i][C] * z2 + m_Frustum[i][D] > 0) continue; if(m_Frustum[i][A] * x + m_Frustum[i][B] * y2 + m_Frustum[i][C] * z2 + m_Frustum[i][D] > 0) continue; if(m_Frustum[i][A] * x2 + m_Frustum[i][B] * y2 + m_Frustum[i][C] * z2 + m_Frustum[i][D] > 0) continue; // If we get here, it isn't in the frustum return false; } // Return a true for the box being inside of the frustum return true; }

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• Custom Annotation not showing all

  - by funatsg

  Okay, i have a number of pins on the mapkit. These pins showing different types of attractions. (E.g Parks, Farms and etc) I want to add custom images for these different types of pin. Parks have a park image and vice versa. However, when i added in, not all the images are showing successfully. For example, in parks, it should have 5 pins, but the image only came up in 2 pins, whereas other 3 is in default red pins. But if i used colours to differentiate them. For example, [pinsetPinColor:MKPinAnnotationColorGreen]; It works! Anyone knows what is the problem? Relevant codes below. Tell me if you need more. thanks! - (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation{ if ([annotation isKindOfClass:MKUserLocation.class]) { //user location view is being requested, //return nil so it uses the default which is a blue dot... return nil; } //NSLog(@"View for Annotation is called"); MKPinAnnotationView *pin=[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:nil]; pin.userInteractionEnabled=TRUE; MapEvent* event = (MapEvent*)annotation; NSLog(@"thetype: %@", event.thetype); if ([event.thetype isEqualToString:@"adv"]) { //[pin setPinColor:MKPinAnnotationColorGreen]; pin.image = [UIImage imageNamed:@"padv.png"]; } else if ([event.thetype isEqualToString:@"muse"]){ //[pin setPinColor:MKPinAnnotationColorPurple]; pin.image = [UIImage imageNamed:@"pmuse.png"]; } else if ([event.thetype isEqualToString:@"nightlife"]){ pin.image = [UIImage imageNamed:@"pnight.png"]; } else if ([event.thetype isEqualToString:@"parks"]){ pin.image = [UIImage imageNamed:@"ppark.png"]; } else if ([event.thetype isEqualToString:@"farms"]){ pin.image = [UIImage imageNamed:@"pfarm.png"]; } else { [pin setPinColor:MKPinAnnotationColorRed]; } pin.canShowCallout = YES; pin.animatesDrop = YES; UIButton *rightButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure]; [rightButton addTarget:self action:@selector(clickAnnotation:) forControlEvents:UIControlEventTouchUpInside]; [rightButton setTitle:event.uniqueID forState:UIControlStateNormal]; pin.rightCalloutAccessoryView = rightButton; return pin; }

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• JSF : able to do mass update but unable to update a single row in a datatable

  - by nash

  I have a simple data object: Car. I am showing the properties of Car objects in a JSF datatable. If i display the properties using inputText tags, i am able to get the modified values in the managed bean. However i just want a single row editable. So have placed a edit button in a separate column and inputText and outputText for every property of Car. the edit button just toggles the rendering of inputText and outputText. Plus i placed a update button in a separate column which is used to save the updated values. However on clicking the update button, i still get the old values instead of the modified values. Here is the complete code: public class Car { int id; String brand; String color; public Car(int id, String brand, String color) { this.id = id; this.brand = brand; this.color = color; } //getters and setters of id, brand, color } Here is the managed bean: import java.util.ArrayList; import java.util.List; import javax.faces.bean.ManagedBean; import javax.faces.bean.RequestScoped; import javax.faces.component.UIData; @ManagedBean(name = "CarTree") @RequestScoped public class CarTree { int editableRowId; List<Car> carList; private UIData myTable; public CarTree() { carList = new ArrayList<Car>(); carList.add(new Car(1, "jaguar", "grey")); carList.add(new Car(2, "ferari", "red")); carList.add(new Car(3, "camri", "steel")); } public String update() { System.out.println("updating..."); //below statments print old values, was expecting modified values System.out.println("new car brand is:" + ((Car) myTable.getRowData()).brand); System.out.println("new car color is:" + ((Car) myTable.getRowData()).color); //how to get modified row values in this method?? return null; } public int getEditableRowId() { return editableRowId; } public void setEditableRowId(int editableRowId) { this.editableRowId = editableRowId; } public UIData getMyTable() { return myTable; } public void setMyTable(UIData myTable) { this.myTable = myTable; } public List<Car> getCars() { return carList; } public void setCars(List<Car> carList) { this.carList = carList; } } here is the JSF 2 page: <?xml version='1.0' encoding='UTF-8' ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xmlns:h="http://java.sun.com/jsf/html" xmlns:f="http://java.sun.com/jsf/core"> <h:head> <title>Facelet Title</title> </h:head> <h:body> <h:form id="carForm" prependId="false"> <h:dataTable id="dt" binding="#{CarTree.myTable}" value="#{CarTree.cars}" var="car" > <h:column> <h:outputText value="#{car.id}" /> </h:column> <h:column> <h:outputText value="#{car.brand}" rendered="#{CarTree.editableRowId != car.id}"/> <h:inputText value="#{car.brand}" rendered="#{CarTree.editableRowId == car.id}"/> </h:column> <h:column> <h:outputText value="#{car.color}" rendered="#{CarTree.editableRowId != car.id}"/> <h:inputText value="#{car.color}" rendered="#{CarTree.editableRowId == car.id}"/> </h:column> <h:column> <h:commandButton value="edit"> <f:setPropertyActionListener target="#{CarTree.editableRowId}" value="#{car.id}" /> </h:commandButton> </h:column> <h:column> <h:commandButton value="update" action="#{CarTree.update}"/> </h:column> </h:dataTable> </h:form> </h:body> </html> However if i just keep the inputText tags and remove the rendered attributes, i get the modified values in the update method. How can i get the modified values for the single row edit?

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• converting code from not CPS to CPS (CPS aka Continuation Passing Style aka Continuations)

  - by Delirium tremens

  before: function sc_startSiteCompare(){ var visitinguri; var validateduri; var downloaduris; var compareuris; var tryinguri; sc_setstatus('started'); visitinguri = sc_getvisitinguri(); validateduri = sc_getvalidateduri(visitinguri); downloaduris = new Array(); downloaduris = sc_generatedownloaduris(validateduri); compareuris = new Array(); compareuris = sc_generatecompareuris(validateduri); tryinguri = 0; sc_finishSiteCompare(downloaduris, compareuris, tryinguri); } function sc_getvisitinguri() { var visitinguri; visitinguri = content.location.href; return visitinguri; } after (I'm trying): function sc_startSiteCompare(){ var visitinguri; sc_setstatus('started'); visitinguri = sc_getvisitinguri(sc_startSiteComparec1); } function sc_startSiteComparec1 (visitinguri) { var validateduri; validateduri = sc_getvalidateduri(visitinguri, sc_startSiteComparec2); } function sc_startSiteComparec2 (visitinguri, c) { var downloaduris; downloaduris = sc_generatedownloaduris(validateduri, sc_startSiteComparec3); } function sc_startSiteComparec3 (validateduri, c) { var compareuris; compareuris = sc_generatecompareuris(downloaduris, validateduri, sc_startSiteComparec4); } function sc_startSiteComparec4 (downloaduris, compareuris, validateduri, c) { var tryinguri; tryinguri = 0; sc_finishSiteCompare(downloaduris, compareuris, tryinguri); } function sc_getvisitinguri(c) { var visitinguri; visitinguri = content.location.href; c(visitinguri); } What should the code above become? I need CPS, because I have XMLHttpRequests when validating uris, then downloading pages, but I can't use return statements, because I use asynchronous calls. Is there an alternative to CPS? Also, I'm having to pass lots of arguments to functions now. global in procedural code look like this / self in modular code. Any difference? Will I really have to convert from procedural to modular too? It's looking like a lot of work ahead.

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