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  • Swing: what to do when a GUI update takes too long and freezes other GUI elements?

    - by java.is.for.desktop
    Hello, everyone! I know that GUI code in Java Swing must be put inside SwingUtilities.invokeAndWait or SwingUtilities.invokeLater. This way threading works fine. Sadly, in my situation, the GUI update it that thing which takes much longer than background thread(s). More specific: I update a JTree with about just 400 entries, nesting depth is maximum 4, so should be nothing scary, right? But it takes sometimes one second! I need to ensure that the user is able to type in a JTextPane without delays. Well, guess what, the slow JTree updates do cause delays for JTextPane during input. It refreshes only as soon as the tree gets updated. I am using Netbeans and know empirically that a Java app can update lots of information without freezing the rest of the UI. How can it be done? NOTE 1: All those DefaultMutableTreeNodes are prepared outside the invokeAndWait. NOTE 2: When I replace invokeAndWait with invokeLater the tree doesn't get updated.

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  • Lock HTML select element, allow value to be sent on submit

    - by ILMV
    I have a select box (for a customer field) on a complex order form, when the user starts to add lines to the order they should not be allowed to change the customer select box (unless all lines are deleted). My immediate thought was that I could use the disabled attribute, but when the box is disabled the selected value is no longer passed to the target. When the problem arose a while ago one of the other developers worked around this by looping through all the options and disabling all but the selected option, and sure enough the value was passed to the target and we've been using since. But now I'm looking for a proper solution, I don't want to loop through all the options because are data is expanding and it's starting to introduce performance issues. I'd prefer not to enable this / all the elements when the submit button is hit. How can I lock the input, whilst maintaining the selected option and passing that value to the target script? I would prefer a non-JavaScript solution if possible, but if needed we are running jQuery 1.4.2 so that could be used.

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  • When to use MVC Scaffolding via NuGet vs MVC Scaffolding via MVC3 Tools Update

    - by James
    I am a little confused about the various different "mainstream" scaffolding options for MVC3. There is a NuGet package called MVCScaffolding. It first showed up in Jan 2011, but seems to be active and have recent updates, and be developed by Scott Hanselman, among others. Then in May 2011 came the MVC3 Tools Update. This seems like it incorporated the original scaffolding ideas into an "out of the box" scaffolding options. However, this has not been updated since. So - what is the relationship between these two scaffoldings (if any). Are there cases when one should be used over the other, or is it just a matter of taste? Does Visual Studio 2012 or MVC4 change the game on any of this? Thanks for any input.

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  • Templating Engine Pros and Cons with Zend Framework

    - by manyxcxi
    I am getting familiar with Zend Framework (and MVC with PHP in general) for a personal project. I have previous experience with Smarty and have no major gripes with it, but I would like to use this project as a good in-depth learning exercise. Those of you familiar with different templating engines and ZF: Do you believe there are better templating engines than Smarty in conjunction with ZF and why? I would like to apply what I learn to the real world and production environments. The personal project will be fairly robust. User management, sessions, security, database interaction, form input, jQuery, etc.

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  • converting a treebank of vertical trees to s-expressions

    - by Andreas
    I need to preprocess a treebank corpus of sentences with parse trees. The input format is a vertical representation of trees, like so: S =NP ==(DT +def) the == (N +ani) man =VP ==V walks ...and I need it like: (S (NP (DT the) (N man)) (VP (V walks))) I have code that almost does it, but not quite. There's always a missing paren somewhere. Should I use a proper parser, maybe a CFG? The current code is at http://github.com/andreasvc/eodop/blob/master/arbobanko.py The code also contains real examples from the treebank.

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  • C / JSON Library in popular Linux distros?

    - by Tim Post
    I have a program written in C that has to input and output JSON over a local domain socket. I've found several C / JSON libraries that 'almost work' through searches. Prior to taking one of the libraries that I found .. I want to be sure that I'm not over-looking a library that is commonly found on modern Linux distros. I'd also really appreciate links to libraries that you use. Most likely, I'll just drop it in tree, unless I realize that I've over looked something widely distributed. I am tagging this as subjective because the answer that I select is the one linking to a library that works for me, that does not mean its the 'best' library. I want to take an existing array and easily convert it to a buffer that can be sent, or take a buffer and easily convert it into an allocated array. Thanks in advance!

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  • What goes between SQL Server and Client?

    - by worlds-apart89
    This question is an updated version of a previous question I have asked on here. I am new to client-server model with SQL Server as the relational database. I have read that public access to SQL Server is not secure. If direct access to the database is not a good practice, then what kind of layer should be placed between the server and the client? Note that I have a desktop application that will serve as the client and a remote SQL Server database that will provide data to the client. The client will input their username and password in order to see their data. I have heard of terms like VPN, ISA, TMG, Terminal Services, proxy server, and so on. I need a fast and secure n-tier architecture. P.S. I have heard of web services in front of the database. Can I use WCF to retrieve, update, insert data? Would it be a good approach in terms of security and performance?

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  • Tag-like autocompletion and caret/cursor movement in contenteditable elements.

    - by jimeh
    I'm working on a jQuery plugin that will allow you to do @username style tags, like Facebook does in their status update input box. My problem is, that even after hours of researching and experimenting, it seems REALLY hard to simply move the caret. I've managed to inject the <a> tag with someone's name, but placing the caret after it seems like rocket science, specially if it's supposed work in all browsers. And I haven't even looked into replacing the typed @username text with the tag yet, rather than just injecting it as I'm doing right now... lol There's a ton of questions about working with contenteditable here on Stack Overflow, and I think I've read all of them, but they don't really cover properly what I need. So any more information anyone can provide would be great :)

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  • Haskell - Parsec Parsing <p> element

    - by Martin
    I'm using Text.ParserCombinators.Parsec and Text.XHtml to parse an input like this: This is the first paragraph example\n with two lines\n \n And this is the second paragraph\n And my output should be: <p>This is the first paragraph example\n with two lines\n</p> <p>And this is the second paragraph\n</p> I defined: line= do{ ;t<-manyTill (anyChar) newline ;return t } paragraph = do{ t<-many1 (line) ;return ( p << t ) } But it returns: <p>This is the first paragraph example\n with two lines\n\n And this is the second paragraph\n</p> What is wrong? Any ideas? Thanks!

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  • HTML text field not displaying decimal places of SQL money value

    - by baldwingrand
    I have a text field who's value is populated from a SQL recordset (below). <input name="txtAmount" id="txtAmount" type="text" size="10" maxlength="10" value="<%=RS("Amount")%>"> In the SQL table, the Amount field (which is a money data type) is inserted correctly, as 5.00 However, in the web page, it displays only as 5 (i.e. the decimal places are missing). Anyone know why this might be and how I can get the decimal places to display in the field? Thanks!

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  • Do we need to differntiate anything for this in IE8?

    - by kumar
    I have this code in my application var checked = $('#fieldset input[type=checkbox]:checked'); var ids= checked.map(function() { return $(this).val(); }).get().join(','); in firefox I am getting all the checked Ids something like this.. 123,234,443.. but same code in IE8 its showing only first Id not all checked id's even its checked? Even if I uncheck the first checkbox if I check second checkbox second checkbox value showing as null? can anybody help me out? thanks

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  • Automatic database generation / migration with perl

    - by pistacchio
    Hi, In Ror or Django or web2py you can "describe" a database (as a set of classes that remaps to tables) and the framework (having being provided with a connection string to the desired database) generates the tables, fields, relations and in the case of RoR and web2py it also keeps it up-to-date (eg, removing a class drops the table, adding a property to the class triggers an "alter table add" etc). Is there any perl module that does the same? Eg, it takes the YAML / XML / JSON description of a database as input and modifies / generates the database accordingly? Thanks in advance.

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  • C++ Testing framework integrated with Eclipse

    - by Mike
    I'm writing a C++ unit testing framework and I would like it if it could be integrated with Eclipse CDT. In other testing suites that work with Eclipse, JUnit for example, the user is provided a graphical list of all test cases and their results. Something like this would be the ideal. I'm just getting into this, so I need some advice on getting started. There are two approaches I see Use an existing Eclipse testing plugin (such as JUnit) and make the framework return output in the same format as the plugin's input. Write a plugin from scratch that can work with my framework (seems like it would take a lot of time) Thoughts appreciated

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  • SSI not producing output, not giving error either.

    - by bstullkid
    in the html file: <!--#exec cgi="/cgi-bin/test.pl"--> the perl script: #!/usr/bin/perl print "Content-Type: text/html\n\n"; print "<input type=\"hidden\" name=\"aname\" value=\"avalue\">\n"; print "<img src=\"/cgi-bin/script.pl\" />"; This does not give me an 'error processing directive' error, nor does it output my HTML inplace of the tag. I'll also add that the ssi tag gets replaced with nothing.

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  • C# - Sending keyboard events to (last) selected window

    - by Mil
    Hi guys, I want to use virtual keyboard assembly found here http://www.codeproject.com/KB/miscctrl/touchscreenkeyboard.aspx like on screen keyboard (OSK.exe) in Windows. Can someone please tell me how can I use it so that it always stays on top and yet for user to be able to select other windows on dekstop for keyboard input, just like "on screen keyboard" in Windows, specifically I don't know how to select last selected window (can't use GetForegroundWindow or GetFocus only, because when user clicks on virtual keyboard it gets focused and I get handle of keyboard window itself)? This is very urgent to me so any advice would be greatly appreciated. Thanks in advance.

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  • Parsing a website

    - by Phenom
    I want to make a program that takes as user input a website address. The program then goes to that website, downloads it, and then parses the information inside. It outputs a new html file using the information from the website. Specifically, what this program will do is take certain links from the website, and put the links in the output html file, and it will discard everything else. Right now I just want to make it for websites that don't require a login, but later on I want to make it work for sites where you have to login, so it will have to be able to deal with cookies. I'll also want to later on have the program be able to explore certain links and download information from those other sites. What are the best programming languages or tools to do this?

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  • How can I generate a list of symbols used by a build product from a particular statically linked lib

    - by morechilli
    Say I have a visual studio project that builds a windows exe or dll from c++ source. The project statically links to several library (.lib) files. I would like to generate the subset of the available functionality in a particular .lib that the project actually links to. A very crude way to achieve this would be to remove the .lib from the linker input list. The error list on the build would then show me all the symbols that could not be found. Is there a better/proper way to generate this list, I'm happy with a solution that can be run as a custom build step in the project or one that runs against a built binary. I've looked at both the linker and dumpbin command line options but have not seen anything appropriate.

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  • Using Range Function

    - by Michael Alexander Riechmann
    My goal is to make a program that takes an input (Battery_Capacity) and ultimately spits out a list of the (New_Battery_Capacity) and the Number of (Cycle) it takes for it ultimately to reach maximum capacity of 80. Cycle = range (160) Charger_Rate = 0.5 * Cycle Battery_Capacity = float(raw_input("Enter Current Capacity:")) New_Battery_Capacity = Battery_Capacity + Charger_Rate if Battery_Capacity < 0: print 'Battery Reading Malfunction (Negative Reading)' elif Battery_Capacity > 80: print 'Battery Reading Malfunction (Overcharged)' elif float(Battery_Capacity) % 0.5 !=0: print 'Battery Malfunction (Charges Only 0.5 Interval)' while Battery_Capacity >= 0 and Battery_Capacity < 80: print New_Battery_Capacity I was wondering why my Cycle = range(160) isn't working in my program?

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  • click() (javascript) method is not working in FF

    - by Bragaadeesh
    Hi, The following code is throwing two alerts as expected in IE but not in Firefox. Please help. <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML> <HEAD> <SCRIPT LANGUAGE="JavaScript"> <!-- function myFunction(){ alert('myfunc'); document.getElementById('mylabel').click(); } //--> </SCRIPT> </HEAD> <BODY> <p id='mylabel' onclick="alert('you reached');"></p> <input type='button' value="Click me" onclick='myFunction();'/> </BODY> </HTML> Thanks

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  • How do I draw a filled circle onto a graphics object in a hexadecimal colour?

    - by George Powell
    I need to draw a circle onto a bitmap in a specific colour given in Hex. The "Brushes" class only gives specific colours with names. Bitmap bitmap = new Bitmap(20, 20); Graphics g = Graphics.FromImage(bitmap); g.FillEllipse(Brushes.AliceBlue, 0, 0, 19, 19); //The input parameter is not a Hex //g.FillEllipse(new Brush("#ff00ffff"), 0, 0, 19, 19); <<This is the kind of think I need. Is there a way of doing this? The exact problem: I am generating KML (for Google earth) and I am generating lots of lines with different Hex colours. The colours are generated mathematically and I need to keep it that way so I can make as many colours as I want. I need to generate a PNG icon for each of the lines that is the same colour exactly.

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  • Compiled query using list of class objects in C#

    - by Sukan
    Hello , Can somebody help me out in creating compiled queries where input is to be a list of class objects? I have seen examples where Func<DataContext, somematchobject, IQueryable<T>> is created and compiled. But can I do something like Func<List<T>, matchObject, T>, and compile it? Basically I want an object(T) meeting certain conditions (as in matchObject) to be returned from a list of objects(List<T>). Will CompiledQuery.Compile help me in this? Please help me experts!!

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  • clicking a button via javascript does not cause a post

    - by Andreas Niedermair
    hi there! <!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> <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.js"></script> <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.2/jquery-ui.js"></script> </head> <body> <form id="fooForm"> <script type="text/javascript"> function FooMethod() { alert('hello'); } var fooButton; var fooForm; $(document).ready(function() { InitializeVariables(); InitiliazeDialog(); InitiliazeForm(); }); function InitializeVariables() { fooButton = $('#fooButton'); fooForm = $('#fooForm'); } function InitiliazeDialog() { var dialog = $('<div/>'); dialog.css('display', 'none'); var content = $('<p/>'); var icon = $('<span/>'); icon.addClass('ui-icon ui-icon-alert'); icon.css('float', 'left'); icon.css('margin', '0px 7px 20px 0px'); content.text('do you really want to hurt me?'); icon.prependTo(content); content.appendTo(dialog); var dialogOpenMethod = function () { dialog.dialog('open'); return false; }; var dialogOpenHandlerMethod = function (event, ui) { var widget = dialog.dialog('widget'); widget.appendTo(fooForm); var overlay = widget.prev(); overlay.css('z-index', 999); overlay.appendTo(fooForm); widget.css('position', 'fixed'); widget.css('top', '50%'); widget.css('margin-top', widget.height() / 2 * -1); widget.css('left', '50%'); widget.css('margin-left', widget.width() / 2 * -1); }; var submitMethod = function () { dialog.dialog('option', 'closeOnEscape', false); var widget = dialog.dialog('widget'); var yesButton = $(':button:eq(0)', widget); var noButton = $(':button:eq(1)', widget); var closeButton = $('a.ui-dialog-titlebar-close', widget); noButton.remove(); closeButton.remove(); fooButton.unbind('click', dialogOpenMethod); fooButton.click(); }; dialog.dialog({ autoOpen: false, modal: true, buttons: { 'Ja': submitMethod, 'Nein': function () { dialog.dialog('close'); } }, open: dialogOpenHandlerMethod }); fooButton.bind('click', dialogOpenMethod); } function InitiliazeForm() { fooButton.button(); fooForm.submit(function () { alert('doing a submit'); }); } </script> <input type="submit" id="fooButton" value="submit it!" onclick="FooMethod();"></input> </form> </body> </html> what am i doing? i want a modal-confirmation: user clicks on button, confirmation "do you really want to...?", user clicks "yes", this click unbinds the original click-handler and clicks the button again (which should cause a submit). what/why is not working? indeed you need a special case. this demo won't work, unless you set modal: false. interesting to mention: the original handler (onclick="FooMethod();") is called in modal and non-modal dialog. can anybody help me out? thanks in advance! i also opened a ticket on jqueryUI for this

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  • Use Regular expression with fileinput

    - by chrissygormley
    Hello, I am trying to replace a variable stored in another file using regular expression. The code I have tried is: r = re.compile(r"self\.uid\s*=\s*('\w{12})'") for line in fileinput.input(['file.py'], inplace=True): print line.replace(r.match(line), sys.argv[1]), The format of the variable in the file is: self.uid = '027FC8EBC2D1' I am trying to pass in a parameter in this format and use regular expression to verify that the sys.argv[1] is correct format and to find the variable stored in this file and replace it with the new variable. Can anyone help. Thanks for the help.

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  • Creating standalone, console (shell) for domain-specific operations

    - by mr.b
    Say that I have a system service, and I want to offer a low-level maintenance access to it. For that purpose, I'd like to create a standalone, console application that somehow connects to server process and lets user type in commands, allow it to use auto-completion and auto-suggestion on single/double TAB press (just like linux bash shell, mysql cli, cmd.exe, and countless others), allow command line editing capabilities (history, cursor keys to move around text..), etc. Now, it's not that much of a problem to create something like that by rolling my own from scratch, handling user input, scanning pressed keys, and doing correct actions. But, why reinvent the wheel? Is there some library/framework that helps with this kind of problems, just like readline library that offers improved command-line editing capabilities under linux? Of course, this new "shell" would respond only to valid, domain-specific commands, and would suggest valid arguments, options, switches... Any ideas? Thanks!

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  • How to do steps of an API through CLI/ batch mode without GUI

    - by Dolphin
    I'm using Audiveris API to generate xml(MusicXML) file once the sheetmusic(e.g. pdf/img file) is being input (i.e. When I give the sheet music (pdf file) location, to generate the xml file out of it (in another location)). Audiveris has its own GUI to do this. But can I do this process of sheetmusic-to-xml without using their GUI, but only from the CLI? If so how may I approach it? And also if so - is there a possibility to make it work in CLI - using Java code (say to invoke steps for API to occur in the CLI using Java Code - I've heard this is possible using shell commands)? I managed to open the GUI by opening the jar file from CLI. But I need to know whether there's a possibility to carry out the entire sheetmusic(say pdf)-to-xml process without using their GUI, but only through CLI (i.e. in batch mode)? Greatly appreciate any help or guidance Thanks in advance

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