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  • What is needed to get Delphi back on top?

    - by Jim McKeeth
    Delphi 2009 is due in the next couple months, which is its 12th release since Turbo Pascal became Delphi in 1995. Despite continued innovation it has not returned to its level of popularity before the Inprise fiasco. Many developers with Delphi backgrounds are moving to C# and many Delphi legacy applications are being rewritten in C#, despite the fact Delphi supports .NET and in many cases the existing application could be ported without rewriting. Is it just a losing battle to compete against Microsoft's tools on their platform? Is there something Code Gear / Delphi can do now that they are under new management to regain market share? What can enthusiasts do to help? Why do you do Delphi programming? or Why are you not doing Delphi programming?

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  • Question about spring manning-in-action

    - by Gandalf StormCrow
    I saw people asking about best book for learning spring, and I came across manning.spring in action was recommended most of the time so I decided to give it a go. The thing is the author offers some pretty reasonable explanations, puzzle by puzzle it gets in your head, than you just need to code it and you're done, you get it(this is how I work don't know about the others). When it comes to the code its very disapointing, I went trought the Knight example like 2 or 3 times by now and I see its incorrect in the book, I mean its hard already for people eager to learn and why not a note somewhere in the book like pseudo-code or something. The knight example in the first chapter is missing two classes QuestFailedException and HolyGrail I mean other people must have noticed this, why is everyone recommending this book without saying at least it has some errors(like many others do), was anyone actually been able to compile and this first chapter example?

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  • PulpCore music playback - loop sound and animate volume

    - by Peter Perhác
    I have been experimenting with PulpCore, trying to create my own tower defence game (not-playable yet), and I am enjoying it very much I ran into a problem that I can't quite figure out. I extended PulpCore with the JOrbis thing to allow OGG files to be played. Works fine. However, pulpCore seems to have a problem with looping the sound WHILE animating the volume level. I tried this with wav file too, to make sure it isn't jOrbis that breaks it. The code is like this: Sound bgMusic = Sound.load("music/music.ogg"); Playback musicPlayback; ... musicVolume = new Fixed(0.75); musicPlayback = bgMusic.loop(musicVolume); //TODO figure out why it's NOT looping when volume is animated // musicVolume.animate(0, musicVolume.get(), FADE_IN_TIME); This code, for as long as the last line is commented out, plays the music.ogg again and again in an endless loop (which I can stop by calling stop on the Playback object returned from loop(). However, I would like the music to fade in smoothly, so following the advice of the PulpCore API docs, I added the last line which will create the fade-in but the music will only play once and then stop. I wonder why is that? Here is a bit of the documentation: Playback pulpcore.sound.Sound.loop(Fixed level) Loops this sound clip with the specified volume level (0.0 to 1.0). The level may have a property animation attached. Parameters: level Returns: a Playback object for this unique sound playback (one Sound can have many simultaneous Playback objects) or null if the sound could not be played. So what could be the problem? I repeat, with the last line, the sound fades in but doesn't loop, without it it loops but starts with the specified 0.75 volume level. Why can't I animate the volume of the looped music playback? What am I doing wrong? Anyone has any experience with pulpCore and has come across this problem? Anyone could please download PulpCore and try to loop music which fades-in (out)? note: I need to keep a reference to the Playback object returned so I can kill music later.

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  • Lombok with Play 2

    - by Alex Povar
    What about Lombok integration with Play Framework 2? I really like Lombok it make my code more readable and less boilerplate. And Play Framework is wonderful too. But there is a great trouble in case if you going to mixup them. Main reason is that scala temlates in play project compiled before domain classes. So Lombok, which itself is compiler's hack do not generate accessors for that time. The question is: if it any ways to make it work? I found some discussions in Google Groups, but they do not provide any reasonable solution. So have you got any success with it? And.. why guys from Play Framework project do not provide some Lombok-like solution? Anyway Play is full of code-generation magic and shadow compiling... so, why not?

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  • With the introduction of the HTML5 <canvas> element, could Swing be implemented in GWT?

    - by knorv
    With the introduction of the HTML5 <canvas> element, could Swing theoretically be implemented in Google Web Toolkit (GWT) by using the <canvas> tag for drawing? I'm aware of efforts to port source code from using Swing calls to GWT calls, but what I'm after is a pure behind the scenes port where a Swing application would compile under GWT without any source code modifications. Is that theoretically possible? Why? Why not?

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  • Using colon in html tag and handle its element in javascript

    - by Fabien Bernede
    Hello, why my "myns:button" don't become red in IE 6 / 7 / 8 unlike in Firefox / Opera / Safari / Chrome ? <html> <head> <script type="text/javascript"> window.onload = function() { var tmp = document.getElementsByTagName('myns:button'); for (i = 0; i < tmp.length; i++) { tmp[i].style.color = '#FF0000'; } }; </script> </head> <body> <myns:button>My NS Button</myns:button> </body> </html> I already tried to prepend the following to my js : document.createElement('myns:button'); But that doesn't work in IE, why ? Thanks.

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  • Java: what are IOEXceptions in BufferedReader's readLine() for?

    - by HH
    I can "fix" the below exception with a try-catch loop but I cannot understand the reason. Why does the part "in.readLine()" continuosly ignite IOExceptions? What is really the purpose of throwing such exceptions, the goal probably not just more side effects? Code and IOExceptions $ javac ReadLineTest.java ReadLineTest.java:9: unreported exception java.io.IOException; must be caught or declared to be thrown while((s=in.readLine())!=null){ ^ 1 error $ cat ReadLineTest.java import java.io.*; import java.util.*; public class ReadLineTest { public static void main(String[] args) { String s; BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); // WHY IOException here? while((s=in.readLine())!=null){ System.out.println(s); } } }

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  • problem with css showing the divisions of the page

    - by user225269
    This is most likely the culprit for this page: http://www.mypicx.com/04192010/ff/ table { border-collapse:collapse; } table,th, td { border: 1px solid black; font-family:Arial, Helvetica, sans-serif; letter-spacing: 1px; font-size:3; font-size:10px; } th { background-color:#A7C942; color:white; } I don't know why, but the page has some php scripts in it which shows a table from mysql database. As you can see in the url above. Please help, why do I see those lines everytime I put those css scripts

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  • Prototype JS swallows errors in dom:loaded, and ajax callbacks?

    - by WishCow
    I can't figure out why prototype suppressess the error messages in the dom:loaded event, and in AJAX handlers. Given the following piece of HTML: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>Conforming XHTML 1.1 Template</title> <script type="text/javascript" src="prototype.js"></script> <script type="text/javascript"> document.observe('dom:loaded', function() { console.log('domready'); console.log(idontexist); }); </script> </head> <body> </body> </html> The domready event fires, I see the log in the console, but there is no indication of any errors whatsoever. If you move the console.log(idontexist); line out of the handler, you get the idontexist is not defined error in the console. I find it a little weird, that in other event handlers, like 'click', you get the error message, it seems that it's only the dom:loaded that has this problem. The same goes for AJAX handlers: new Ajax.Request('/', { method: 'get', onComplete: function(r) { console.log('xhr complete'); alert(youwontseeme); } }); You won't see any errors. This is with prototype.js 1.6.1, and I can't find any indication of this behavior in the docs, nor a way to enable error reporting in these handlers. I have tried stepping through the code with FireBug's debugger, and it seems to jump to a function on line 53 named K, when it encounters the missing variable in the dom:loaded handler: K: function(x) { return x } But how? Why? When? I can't see any try/catch block there, how does the program flow end up there? I know that I can make the errors visible by packing my dom:ready handler(s) in try/catch blocks, but that's not a very comfortable option. Same goes for registering a global onException handler for the AJAX calls. Why does it even suppress the errors? Did someone encounter this before?

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  • Django Custom Template Tages: Inclusion Tags

    - by Harry
    Hello world! Im trieng to build my own template tags Im have no idea why I get the errors I get, im following the django doc's. this is my file structure of my app: pollquiz/ __init__.py show_pollquiz.html showpollquiz.py This is showpollquiz.py: from django import template from pollquiz.models import PollQuiz, Choice register = template.Library() @register.inclusion_tag('show_pollquiz.html') def show_poll(): poll = Choice.objects.all() return { 'poll' : poll } html file: <ul> {% for poll in poll <li>{{ poll.pollquiz }}</li> {% endfor </ul> in my base.html file im am including like this {% load showpollquiz %} and {% poll_quiz %} Bu then I get the the error: Exception Value: Caught an exception while rendering: show_pollquiz.html I have no idea why this happens. Any ideas? Please keep in mind Im still new to Django

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  • jQuery - Animation Causes Div Overlap IE7

    - by Norbert
    I have a hidden div (#contactArea) above another div. When I click the link, the #contactArea opens up. When I click it again, it closes back up. It all works nicely, except in IE7. The two divs are transparent, so they overlap. I have no idea why this happens, or why doesn't it happen on other browsers. It just about feels like IE7 is right on this one. Any way to fix this? $(document).ready(function(){ $("#contactArea").css('display', 'none'); $("a.contact").toggle(function() { $("#contactArea").animate({height: "show"}, 1500, "easeOutBounce"); }, function() { $("#contactArea").animate({height: "hide"}, 1500, "easeOutBounce"); }); });

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  • PHP MySQLi timeout on locked tables?

    - by Marcin
    Hi guys I have a weird problem with mysqli timeout options, here you go: I am using mysqli_init() and real_connect() in order to set MYSQLI_OPT_CONNECT_TIMEOUT $this->__mysqli = mysqli_init(); if(!$this->__mysqli->options(MYSQLI_OPT_CONNECT_TIMEOUT,1)) throw new Exception('Timeout settings failed') $this->__mysqli->real_connect(host,user,pass,db); .... Then I am initiating query on locked table (LOCKE TABLE users WRITE) and its just hanging, ignoring all my settings even: set_time_limit(1); ini_set('max_execution_time',1); ini_set('default_socket_timeout',1); ini_set('mysql.connect_timeout',1); I understand why set_time_limit(1) and max_execution_time is ignored but why other timeouts and especially MYSQLI_OPT_CONNECT_TIMEOUT are ignored and how to solve it. I am using PHP 5.3.1 on Windows and Linux boxes, please help.

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  • Possible typos in ECMAScript 5 specification?

    - by Andy West
    Does anybody know why, at the end of section 7.6 of the ECMA-262, 5th Edition specification, the nonterminals UnicodeLetter, UnicodeCombiningMark, UnicodeDigit, UnicodeconnectorPunctuation, and UnicodeEscapeSequence are not followed by two colons? From section 5.1.6: Nonterminal symbols are shown in italic type. The definition of a nonterminal is introduced by the name of the nonterminal being defined followed by one or more colons. (The number of colons indicates to which grammar the production belongs.) Since lexical productions are distinguished by having two colons, and this is under "Lexical Conventions", I'm assuming that they meant to put the colons in. Does that sound right? Just making sure that these really are nonterminals and they really are part of the lexical grammar. EDIT: I noticed there have been votes to close this. Just to make my case about why this is programming-related, it is relevant to anyone wanting to implement an ECMAScript interpreter.

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  • PHP client for asmx service

    - by Carlos Mora
    A few days ago I was in charge of the development of some webServices for a client, the thing is that the client also asked for a php client that consumes the webservices. The service were published online on a server, with public access, right now I can see the wsdl from any computer, but when trying to consume it with PHP it shows me an error that says something about HTTP header and blablabla, that happened before I connected with a VPN to the server where the service is being hosted, after doing the VPN just by curiosity I reloaded the php client, and I don't know why... It did worked.... Q: Can anybody tell me why did this happened?

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  • angular js scope property is undefined

    - by user2071301
    why is $scope.orderBy undefined? Shouldnt it be "test" ? http://jsfiddle.net/XB4QA/4/ var app = angular.module("Foo", []); app.directive("two", function () { return { scope: { orderBy: '@' }, restrict: 'E', transclude: true, controller: function ($scope, $element, $attrs) { console.log($scope.orderBy); // is undefined, why? }, template: '<div></div>', replace: true }; }); <div ng-app="Foo"> <two order-by="test">test</two> </div>

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  • Can someone explain how OpenXML works(in this SP)?

    - by chobo2
    Hi I am looking at this tutorial and it confuses me as I don't get the SP CREATE PROCEDURE [dbo].[spTEST_InsertXMLTEST_TEST](@UpdatedProdData nText) AS DECLARE @hDoc int exec sp_xml_preparedocument @hDoc OUTPUT,@UpdatedProdData INSERT INTO TBL_TEST_TEST(NAME) SELECT XMLProdTable.NAME FROM OPENXML(@hDoc, 'ArrayOfTBL_TEST_TEST/TBL_TEST_TEST', 2) WITH ( ID Int, NAME varchar(100) ) XMLProdTable EXEC sp_xml_removedocument @hDoc First I am using SQL 2005 and do I need to install something on the server to get OPENXML to work? Next I don't get what these statements do // not sure what @hDoc is for and why it is an int DECLARE @hDoc int // don't get what this is and where the output is. exec sp_xml_preparedocument @hDoc OUTPUT,@UpdatedProdData // don't get why it is "XMLProdTable" and if it always has to be like this SELECT XMLProdTable.NAME // pretty muct don't get anything what is happening after OPENXML FROM OPENXML(@hDoc, 'ArrayOfTBL_TEST_TEST/TBL_TEST_TEST', 2) WITH ( ID Int, NAME varchar(100) ) XMLProdTable // Don't know what this is really executing EXEC sp_xml_removedocument @hDoc Thanks

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  • Refering to javascript instance methods with a pound/hash sign

    - by Josh
    This question is similar to http://stackoverflow.com/questions/736120/why-are-methods-in-ruby-documentation-preceded-by-a-pound-sign I understand why in Ruby instance methods are proceeded with a pound sign, helping to differentiate talking about SomeClass#someMethod from SomeObject.someMethod and allowing rdoc to work. And I understand that the authors of PrototypeJS admire Ruby (with good reason) and so they use the hash mark convention in their documentation. My question is: is this a standard practice amongst JavaScript developers or is it just Prototype developers who do this? Asked another way, is it proepr for me to refer to instance methods in comments/documentation as SomeClass#someMethod? Or should my documentation refer to `SomeClass.someMethod?

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  • _heapwalk reports _HEAPBADNODE, causes breakpoint or loops endlessly

    - by Stefan Hubert
    I use _heapwalk to gather statistics about the Process' standard heap. Under certain circumstances i observe unexpected behaviours like: _HEAPBADNODE is returned some breakpoint is triggered inside _heapwalk, telling me the heap might got corrupted access violation inside _heapWalk. I saw different behaviours on different Computers. On one Windows XP 32 bit machine everything looked fine, whereas on two Windows XP 64 bit machines i saw the mentioned symptoms. I saw this behaviour only if LowFragmentationHeap was enabled. I played around a bit. I walked the heap several times right one after another inside my program. First time doing nothing in between the subsequent calls to _heapWalk (everything fine). Then again, this time doing some stuff (for gathering statistics) in between two subsequent calls to _heapWalk. Depending upon what I did there, I sometimes got the described symptoms. Here finally a question: What exactly is safe and what is not safe to do in between two subsequent calls to _heapWalk during a complete heap walk run? Naturally, i shall not manipulate the heap. Therefore i doublechecked that i don't call new and delete. However, my observation is that function calls with some parameter passing causes my heap walk run to fail already. I subsequently added function calls and increasing number of parameters passed to these. My feeling was two function calls with two paramters being passed did not work anymore. However I would like to know why. Any ideas why this does not happen on some machines? Any ideas why this only happens if LowFragmentationHeap is enabled? Sample Code finally: #include <malloc.h> void staticMethodB( int a, int b ) { } void staticMethodA( int a, int b, int c) { staticMethodB( 3, 6); return; } ... _HEAPINFO hinfo; hinfo._pentry = NULL; while( ( heapstatus = _heapwalk( &hinfo ) ) == _HEAPOK ) { //doing nothing here works fine //however if i call functions here with parameters, this causes //_HEAPBADNODE or something else staticMethodA( 3,4,5); } switch( heapstatus ) { ... case _HEAPBADNODE: assert( false ); /*ERROR - bad node in heap */ break; ...

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  • FxCop CA2000 Warning in UserControls

    - by esjr
    Running FxCop on a WebProject that contains a UserControl will result in a CA2000 Warning (Call System.IDisposable.Dispose on object) for every ServerControl (Label, TextBox,...) in that UserControl. I understand why this would happen. Replacing the 'offending' ServerControls with a PlaceHolder and then adding the Controls in code (Using...End Using) might be a way around that, but it is not always an option.But, if they are not 'kosher' why have ServerControls you can drop in your ascx/aspx in the first place ?Am I missing something ? If, like in my case, you inherit a sizeable collection of fairly complex UserControls, do I now add every 'offending' Control to the GlobalSupperssions file (that's a lot of mind numbing right-clicking) ?I do not want to suppress all CA2000 warnings since it makes perfect sense to fix them, but not in the case of ServerControls in UserControls.

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