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• combinations of sizes for shipping

  - by Eadz

  Hi there, I've got a bunch of products with sizes to ship and I need to find out the cheapest rate. Given a shipment made out of sizes, say [1,3,3,5] I need to decide how to ship - all together or separate. However it's not as simple as [1,3,3,5] or 1 & 3 & 3 & 5, i need all of the possible combinations something like: [ [[1,3,3,5]], ( 1 shipment ) [[1],[3,3,5]], ( 2 shipments ) [[1,3],[3,5]], ( 2 shipments ) [[1,3,3],[5]], ( 2 shipments ) [[1,5],[3,3]], ( 2 shipments ) [[1,3],[3],[5]], ( 3 shipments ) [[1],[3],[3],[5]] ( 4 shipments ) ] ( etc - many more i assume ) I've tried combinations from the facets gem but it's not quite what i'm after, and I'm not sure how else to approach this problem. I understand it probably has a name and a solution if only I knew the name :) I understand there could be a lot of combinations, but the initial array of sizes won't be larger than 7 or so. Thanks in advance!

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• Can I use Win32 FreeType without the .dll file?

  - by Khatharr

  Hello. I'm teaching myself OpenGL and I'm implementing ttf text rendering using FreeType 2. I downloaded the library from http://gnuwin32.sourceforge.net/packages/freetype.htm and after a couple of minor issues I got it running properly. The thing that's bothering me is that I have to place a copy of freetype6.dll in the directory with my executable in order for the thing to run. I generally try to avoid a bunch of unnecessary dll files floating around. I'm sort of new to windows programming, but from what I understand most libraries can be built to run fully from a lib rather than requiring a dll at runtime. Looking through the documentation from FT is making my brain melt, so I thought I would ask here to see if there were any devs that have worked with FT before and if so, do they know how to build the library such that no dll is required at runtime. Thank you in advance for any advice or support.

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• JQuery UI Dialog query dialog DOM

  - by Travis

  The following simply loads a jquery-ui dialog from an external html file. $('#showdialog').click(function(e) { var div = $('<div>loading...</div>'); div.dialog({ modal: true, open: function() { div.load('anotherpage.html'); } }); e.preventDefault(); }); After the DOM loads from the external html file, I'd like to interrogate it with JQuery. For example, supposing anothorpage.html had a bunch of anchors on it, I'd like to wire up click handlers for them when it loads into the dialog. Any ideas?

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• What happens to date-times and booleans when using DbLinq with SQLite?

  - by DanM

  I've been thinking about using SQLite for my next project, but I'm concerned that it seems to lack proper datetime and bit data types. If I use DbLinq (or some other ORM) to generate C# classes, will the data types of the properties be "dumbed down"? Will date-time data be placed in properties of type string or double? Will boolean data be placed in properties of type int? If yes, what are the implications? I'm imaging a scenario where I need to write a whole second layer of classes with more specific data types and do a bunch of transformations and casts, but maybe it's not so bad. If you have any experience with this or a similar scenario, what are your "lessons learned"?

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• Multiple complete HTTP requests stuck in TCP CLOSE_WAIT state

  - by Sean Owen

  I have a Java and Tomcat-based server application which initiates many outbound HTTP requests to other web sites. We use Jakarta's HTTP Core/Client libraries, very latest versions. The server locks up at some point since all its worker threads are stuck trying to close completed HTTP connections. Using 'lsof' reveals a bunch of sockets stuck in TCP CLOSE_WAIT state. This doesn't happen for all, or even most connections. In fact, I saw it before and resolved it by making sure to set the Connection: Close response header. So that makes me think it may be bad behavior of remote servers. It may have come up again since I moved the app to a totally new service provider -- different OS, network situation. But, I am still at a loss as to what I could do, if anything, to work around this. Some poking around on the internet didn't turn up anything I'm not already doing. Just thought I'd ask if anyone has seen and solved this?

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• iPhone UIImage initWithData fails

  - by DD

  Hello all, I'm trying to code up an async image downloader. I use NSURLConnection to get the data into an NSMutableData and use that data once it is complete to initialize a UIImage. I checked the bytes and it downloads the entire image correctly (right number of bytes at least), however; when I call [UIImage imageWithData:data] and then check the properties of the image, it is zero width and a garbage number for height, in fact, same number no matter what the image is. I tried with bunch of different images, png, jpg, different urls, it always downloads the image completely but UIImage can't initialize with that data. What could I be doing wrong here? Thanks.

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• Prototype/Scriptaculous Cycle (Slideshow) Plugin

  - by Salman A

  I've got a bunch of websites that use a few Prototype/Scriptaculous plugins such as lightbox and modalbox, hence include references to these two libraries on various pages. I now need to implement a slideshow on every page, and to follow suit, I need a Prototype cycle or slideshow plugin. The requirements are fairly simple: images should fade-in/out every N seconds four controls: prev, pause, play, next i'd prefer to add images to the slideshow via JavaScript; not by adding too many tags Can any one suggest an existing plugin that can be customized easily and is not bloated like most of the other plugins. Here is a jQuery plugin which provides similar functionality: http://malsup.com/jquery/cycle/lite/

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• How do you set the "global delimiter" in Excel using VBA?

  - by DanM

  I've noticed that if I use the text-to-columns feature with comma as the delimiter, any comma-delimited data I paste into Excel after that will be automatically split into columns. This makes me think Excel must have some kind of global delimiter. If this is true, how would I set this global delimiter using Excel VBA? Is it possible to do this directly, or do I need to "trick" Excel by doing a text-to-columns on some junk data, then delete the data? My ultimate goal is to be able to paste in a bunch of data from different files using a macro, and have Excel automatically split it into columns according to the delimiter I set.

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• WPF Standard Commands - Where's Exit?

  - by Andrew Shepherd

  I'm creating a standard menu in my WPF application. I know that I can create custom commands, but I know there are also a bunch of standard commands to bind to. For example, to open a file I should bind to ApplicationCommands.Open, to close a file I should bind to ApplicationCommands.Close. There's also a large number of EditCommands, ComponentCommands or NavigationCommands. There doesn't seem to be an "Exit" command. I would have expected there to be ApplicationCommands.Exit. What should I bind to the "Exit" menu item? To create a custom command for something this generic just seems wrong.

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• remuxing mpv files from h264 AVI files

  - by crankharder

  I have a bunch of, I think, x264 encoded AVIs that I'd like to convert to m4v so that I can play with Quicktime. Here's how I created them First I dump the vob from DVD with this: $ mplayer -dumpstream -dumpfile new.vob dvd://1 Then I compress it: $ mencoder -oac copy -o new.avi -ovc x264 -x264encopts crf=18 new.vob I tried doing this to convertthem to m4v, but it's blowing up... I tried dumping the h264/acc streams: $ mplayer new.avi -dumpvideo -dumpfile new.h264 $ mplayer new.avi -dumpaudio -dumpfile new.acc And remuxing(?) with MP4Box but I'm getting an error: $ MP4Box -add new.h264#video -add new.aac#audio new.m4v Cannot find H264 start code Error importing new.h264#video: BitStream Not Compliant So not sure what to do now...

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• Naming convention for the primary key in a Table

  - by kwokwai

  Hi all, I am learning the Model relationship types in cakephp. I have built twotables and in one of the Table A, I got these fields in it: Table A {postID, topic, content} Table B {replyID, content, postID} And when I ran the web page, a bunch of error related to SQL popped up saying that cakephp couldn't find post_id. It is weird that I have already declared the $primaryKey to be using postID in the tableA.php under Models folder, but cakephp seemed want me to change the ID field to post_id instead of postID, because the error disappeared after I have changed the primaryKey to post_id. ANy ideas?

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• saving iPhone program state with a deep UINavigationController

  - by jr

  Can someone a good way to save the program state (UINavigationController stack, etc) of an iPhone application. My application obtains a bunch of information from the network and I want to return the person back to the last screen they were on, even if it was 3 or 4 screens deep. I assume that I will need to reload the data from the network along the way as I recreate the UINavigation controllers. I don't necessarily have a problem with this. I'm thinking about maybe having my UINavigationController objects implement some type of protocol which allow me to save/set their state? I'm looking to hear from others who may have needed to implement a similar scenario and how they accomplished it. My application has a UITabbarController at the root and UINavigationController items for each tab bar item. thanks!

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• Is there any simple way to test two PNGs for equality?

  - by Mason Wheeler

  I've got a bunch of PNG images, and I'm looking for a way to identify duplicates. By duplicates I mean, specifically, two PNG files whose uncompressed image data are identical, not necessarily whose files are identical. This means I can't do something simple like compare CRC hash values. I figure this can actually be done reliably since PNGs use lossless compression, but I'm worried about speed. I know I can winnow things down a little by testing for equal dimensions first, but when it comes time to actually compare the images against each other, is there any way to do it reasonably efficiently? (ie. faster than the "double-for-loop checking pixel values against each other" brute-force method?)

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• Issue with JSON and jQuery

  - by Jason N. Gaylord

  I'm calling a web service and returning the following data in JSON format: ["OrderNumber":"12345","CustomerId":"555"] In my web service success method, I'm trying to parse both: $.ajax({ type: "POST", url: "MyService.asmx/ServiceName", data: "{}", contentType: "application/json; charset=utf-8", dataType: "json", success: function(msg) { var data = msg.d; var rtn = ""; $.each(data, function(list) { rtn = rtn + this.OrderNumber + ", " + this.CustomerId + "<br/>"; } rtn = rtn + "<br/>" + data; $("#test").html(rtn); } }); but I'm getting a bunch of "undefined, undefined" rows followed by the correct JSON string. Any idea why? I've tried using the eval() method but that didn't help as I got some error message talking about ']' being expected.

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• adding options to IKSaveOptions?

  - by Brian Postow

  I have an ImageKit program that needs to be able to save images, so I'm using the IKSaveOptions accessory view, to allow the user to choose a file type, etc. However, I want to remove some of the options, and add a checkbox to the panel for TIFFs. Alternatively, I want to add a type of file. However I can't figure out how to do this. I assume I'm going to have to subclass off of IKSaveOptions and over-ride something, but I can't find any sample code or documentation that tells me how to do this. ETA: In particular, I need to be able to allow the user to distinguish between multi-page tiff, and a bunch of single-page tiffs with a page-number appended.

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• exception 'Zend_Controller_Action_Exception' with message 'Action "index" does not exist and was not

  - by princyp

  Anyone know what this error means? after googling I found a bunch of sites that appear to have the same error? thanks exception 'Zend_Controller_Action_Exception' with message 'Action "index" does not exist and was not trapped in __call()' in /usr/local/zend/apache2/htdocs/pintsy/lib/Zend/Controller/Action.php:485 Stack trace: #0 /usr/local/zend/apache2/htdocs/pintsy/lib/Zend/Controller/Action.php(515): Zend_Controller_Action->__call('indexAction', Array) #1 /usr/local/zend/apache2/htdocs/pintsy/lib/Zend/Controller/Dispatcher/Standard.php(289): Zend_Controller_Action->dispatch('indexAction') #2 /usr/local/zend/apache2/htdocs/pintsy/lib/Zend/Controller/Front.php(946): Zend_Controller_Dispatcher_Standard->dispatch(Object(Zend_Controller_Request_Http), Object(Zend_Controller_Response_Http)) #3 /usr/local/zend/apache2/htdocs/pintsy/html/index.php(114): Zend_Controller_Front->dispatch() #4 {main}

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• How do you use kate? Tips/Tricks/Workflow

  - by Roman A. Taycher

  We all seen a bunch of these? Mostly for IDE's but also for vim and emacs. Kate is (only) a text editor (an awesome one) but it has a ton of options plus a number of plugins, so its hard to know all of it well. How do use the Kate text editor? Please share your workflow and help me and others learn some of the cool tricks you use. I'll start I use the built in terminal a lot opening files quickly, and using it as an enhanced haskell repl with ghci (since ghci doesn't allow you all to just put in all kinds of haskell code). Also use split views to quickly compare files (especially different versions of the same file). Also the auto-complete maybe simple(more use for saving typing time then remembering functions) but it works really well for that. Also if You highlight something and hit a start [/{/( it puts it in between brackets rather then replacing it with a bracket(why the hell do a lot of IDEs not have this feature).

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• Any way to do slanted/diagonal mouseovers via css/javascript?

  - by cksubs

  Hi, I have a box built via html borders. I want to connect the bottom left corner to the top right corner with a diagonal line. Either with html/css or by using a background image, doesn't matter. I'll figure that part out later. ------ - /- - / - - / - -/---- Here's the tricky part: I want a different thing to happen depending on which side of the line the mouse is hovering over. I'll do something like make some text visible or change the background color. Is that possible in web programing? I've thought of doing a "Riemann sum" type calculation with a bunch of invisible divs. Any easier way? Thanks!

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• Best practice for installing python modules from an arbitrary VCS repository

  - by fmark

  I'm newish to the python ecosystem, and have a question about module editing. I use a bunch of third-party modules, distributed on PyPi. Coming from a C and Java background, I love the ease of easy_install <whatever>. This is a new, wonderful world, but the model breaks down when I want to edit the newly installed module for two reasons: The egg files may be stored in a folder or archive somewhere crazy on the file system. Using an egg seems to preclude using the version control system of the originating project, just as using a debian package precludes development from an originating VCS repository. What is the best practice for installing modules from an arbitrary VCS repository? I want to be able to continue to import foomodule in other scripts.

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• How to add star rating to UITableView cell?

  - by RaYell

  I need to display a bunch of UITableViewCell in my iPhone application. Sample look below. I know how I can enable accessory view and image to UITableView cell but the problem is that I need to add a star rating as visible on the screen. There's no fancy logic behind it, it will just be few images that will be either enabled or disabled. I though that I could create a custom UITableViewCell in NIB but how would I use it in cellForRowAtIndexPath method. If it was just one custom cell I'd just provide an outlet for it and hook it with a property and use it there. But since it would be used multiple times I think I'll need to clone it or copy somehow. What is the simpliest way of adding such stuff to UITableViewCell?

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• emacs exporting org file as PDF in batch mode

  - by Sid H

  I'm trying to export a bunch of org mode files to PDF using emacs in batch mode. So far, only export to html seems to work. When I export to html I see the following - U:\tmpd:\programs\emacs-23.1\bin\emacs.exe -batch --visit=Changelog.org --funcall org-export-as-html-batch OVERVIEW Exporting... Exporting... Saving file u:/tmp/Changelog.html... Wrote u:/tmp/Changelog.html HTML export done, pushed to kill ring and clipboard However, there is no function like org-export-as-pdf-batch and so I tried the following. U:\tmpd:\programs\emacs-23.1\bin\emacs.exe -batch --visit=Changelog.org -eval "(org-export-as-pdf \"Changelog.pdf\")" OVERVIEW Exporting to PDF... Exporting to LaTeX... Wrong type argument: number-or-marker-p, "Changelog.pdf" Any ideas on how to export to PDF? My org-mode version is 6.35i with on Emacs 23.1. I'm on WinXP.

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• Returning an anonymous class that uses a final primitive. How does it work?

  - by Tim P

  Hi, I was wondering if someone could explain how the following code works: public interface Result { public int getCount(); public List<Thing> getThings(); } class SomeClass { ... public Result getThingResult() { final List<Thing> things = .. populated from something. final int count = 5; return new Result { @Override public int getCount() { return count; } @Override public List<Thing> getThings(); return things; } } } ... } Where do the primitive int , List reference and List instance get stored in memory? It can't be on the stack.. so where? Is there a difference between how references and primitives are handled in this situation? Thanks a bunch, Tim P.

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• Setting Priorities on Bottons

  - by JONY

  Hello Android Developers, I am trying to figure out how to set priorities on imagebutton. I want to have a layout with a bunch of Icon or buttons that can be selected either by touch, radio, or checked box. As these images are selected they are set on queue to be displayed in order of Precedence. (that is to be pre-determined). The images are displayed once the main action button is touched. Any help will be greatly appreciated. Thank you,

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• Edit Distance in Python

  - by Alice

  I'm programming a spellcheck program in Python. I have a list of valid words (the dictionary) and I need to output a list of words from this dictionary that have an edit distance of 2 from a given invalid word. I know I need to start by generating a list with an edit distance of one from the invalid word(and then run that again on all the generated words). I have three methods, inserts(...), deletions(...) and changes(...) that should output a list of words with an edit distance of 1, where inserts outputs all valid words with one more letter than the given word, deletions outputs all valid words with one less letter, and changes outputs all valid words with one different letter. I've checked a bunch of places but I can't seem to find an algorithm that describes this process. All the ideas I've come up with involve looping through the dictionary list multiple times, which would be extremely time consuming. If anyone could offer some insight, I'd be extremely grateful. Thanks!

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• Tables with no Primary Key

  - by Matt Hamilton

  I have several tables whose only unique data is a uniqueidentifier (a Guid) column. Because guids are non-sequential (and they're client-side generated so I can't use newsequentialid()), I have made a non-primary, non-clustered index on this ID field rather than giving the tables a clustered primary key. I'm wondering what the performance implications are for this approach. I've seen some people suggest that tables should have an auto-incrementing ("identity") int as a clustered primary key even if it doesn't have any meaning, as it means that the database engine itself can use that value to quickly look up a row instead of having to use a bookmark. My database is merge-replicated across a bunch of servers, so I've shied away from identity int columns as they're a bit hairy to get right in replication. What are your thoughts? Should tables have primary keys? Or is it ok to not have any clustered indexes if there are no sensible columns to index that way?

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