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• Why would this div have an unnecessarily large computed height?

  - by Mike Crittenden

  Link: http://www.fraynepainting.com/services The problem is that div#dditem_2 (the div with the "Take a look..." text) is getting a computed height of around 500px for no reason that I can find in the CSS, which is pushing the UL below it down really really far. I discovered that if you set display: none or position: absolute (or anything else that removes it from the flow of elements) on the sidebar, then the bottom UL moves up like it should, so it looks like maybe the UL is trying to clear the sidebar, but I can't figure out why that would be either. I've reproduced the problem in Firefox and Chrome so far. Any ideas?

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• How can I skip the current item and the next in a Python loop?

  - by uberjumper

  This might be a really dumb question, however I've looked around online, etc. And have not seen a solid answer. Is there a simple way to do something like this? lines = open('something.txt', 'r').readlines() for line in lines: if line == '!': # force iteration forward twice line.next().next() <etc> It's easy to do in C++; just increment the iterator an extra time. Is there an easy way to do that in Python? I would just like to point, out the main purpose of this question is not about "reading files and such" and skipping things. I was more looking for C++ iterator style iteration. Also the new title is kinda dumb, and i dont really think it reflects the nature of my question.

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• Has anyone got a polynomial time algorithm for find a Hamiltonian walk in a graph

  - by Nat

  My algorithm is N factorial and is really slow.

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• Managing Unique IDs in stateless (web) DB4O applications

  - by Phil.Wheeler

  I'm playing around with building a new web application using DB4O - piles of fun and some really interesting stuff learned. The one thing I'm struggling with is DB4O's current lack of support for stateless applications (i.e. web apps, mostly) and the need for automatically-generated IDs. There are a number of creative and interesting approaches that I've been able to find that hook into DB4O's events, use GUIDs rather than numeric IDs or for whatever reason avoid using any system of ID at all. While each approach has its merits, I'm wondering if the less-elegant approach might equally be the best fit. Consider the following pseudo-code: If ID == 0 or null Set ID = (typeof(myObject)).Count myObject.Save It seems like such a blindingly simple approach, it's usually about here that I start thinking, "I've missed something really obvious". Have I?

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• Reading PowerPoint Effects with VBA

  - by OneNerd

  I have been working with VBA inside PowerPoint, and have a grasp on most things. What I am struggling with is reading the effect/animation settings for each object. I seem to be able to get a lot of what I need through the Powerpoint.ActivePresentation.Slides(slide_id).TimeLine.MainSequence(seq_num) What confuses me is how to convert the numeric value of Powerpoint.ActivePresentation.Slides(slide_id).TimeLine.MainSequence(seq_num).EffectType to an effect (so looking for a table of values to effects or perhaps a CONST table). Also, how to read in all the different level of effects (like entrance, or emphasis, etc) is really confusing. not to mention I cannot wrap my head around the timeline (which seems like it is not really a timeline). Can anyone point me to any good articles or documentation that discusses how to read the effects and animations properly and fully? Thanks.

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• Rails: Convert HTML to PDF?

  - by rip747

  What is the best and easiest way of taking HTML and converting it into a PDF, similar to use CFDOCUMENT on ColdFusion? UPDATE: I really appreciate all the comments and suggestions that people have given so far, however I feel that people leaving their answers are missing the point. 1) the solution has to be free or open sourced. one person suggested using pricexml and the other pd4ml. both of these solutions costs money (pricexml costing an arm and a leg) which i'm not about the fork over. 2) they must be able to take in html (either from a file, url or a string variable) and then produce the pdf. libraries like prawn, rprf, rtex are produced using their own methods and not taking in html. please don't think i'm ungrateful for the suggestions, it's just that pdf generation seems like a really problem for people like me who use ColdFusion but want to convert to Rails.

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• Multi-part gzip file random access (in Java)

  - by toluju

  This may fall in the realm of "not really feasible" or "not really worth the effort" but here goes. I'm trying to randomly access records stored inside a multi-part gzip file. Specifically, the files I'm interested in are compressed Heretrix Arc files. (In case you aren't familiar with multi-part gzip files, the gzip spec allows multiple gzip streams to be concatenated in a single gzip file. They do not share any dictionary information, it is simple binary appending.) I'm thinking it should be possible to do this by seeking to a certain offset within the file, then scan for the gzip magic header bytes (i.e. 0x1f8b, as per the RFC), and attempt to read the gzip stream from the following bytes. The problem with this approach is that those same bytes can appear inside the actual data as well, so seeking for those bytes can lead to an invalid position to start reading a gzip stream from. Is there a better way to handle random access, given that the record offsets aren't known a priori?

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• Is it possible to cache JSP bytecode to avoid recompiles w/ Tomcat?

  - by Computer Guru

  Hi, Is there any way of caching the bytecode for JSP webapps/ In particular, using Tomcat as the Java servlet? I'm getting really fed up of Tomcat taking up all the CPU for 10 minutes while it compiles 4 different webapps every time I restart it.... I'm already using Jikes to "speed up" the compiles, but it's really killing me. The code does not change unless the webapp is upgraded (very rarely), and I cannot believe that there is no way to cache the compiled java bytecode instead of recompiling it each and every time. I'd appreciate any advice on the matter!

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• Looking for an alternative to cfdump

  - by invertedSpear

  I think I just realized how restrictive my web host is when they wouldn't let me use cfdump. This actually kind of angers me, cause really, what harm is dump going to do? Anyway my question is has anyone written a cfdump alternative that will kick out complex types of data or can link me to a site with a code example? Can't really used cfc's or udfs either cause guess what, they're blocked too. Anyway looking for something simple that I can just paste in my cfml and I will be happy. It's sad that I used to be able to do this, but have forgotten a lot of that skillset since I moved into Flex and AS. oh and they're using cf7, so no cf8 or 9 tricks ;-) Thanks in advance.

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• what knid of usage " [MenuAction("apply", "global-menus/MenuTools/MenuToolsMyTools/Tool1", "Apply")]

  - by programmerist

  MenuAction,ButtonAction,... etc why i need this type usage. i really what it is [ButtonAction("apply", "global-toolbars/ToolbarMyTools/Tool1", "Apply")]. Can you give me some tips or advise or site link. i don't really know [Myclass]. is it AOP? [MenuAction("apply", "global-menus/MenuTools/MenuToolsMyTools/Tool1", "Apply")] // Declares a toolbar button action with action ID "apply" // TODO: Change the action path hint to your desired toolbar path, or // remove this attribute if you do not want to create a toolbar button for this tool [ButtonAction("apply", "global-toolbars/ToolbarMyTools/Tool1", "Apply")] // Specifies tooltip text for the "apply" action // TODO: Replace tooltip text [Tooltip("apply", "Place tooltip text here")] // Specifies icon resources to use for the "apply" action // TODO: Replace the icon resource names with your desired icon resources [IconSet("apply", IconScheme.Colour, "Icons.Tool1Small.png", "Icons.Tool1Medium.png", "Icons.Tool1Large.png")] // Specifies that the enablement of the "apply" action in the user-interface // is controlled by observing a boolean property named "Enabled", listening to // an event named "EnabledChanged" for changes to this property [EnabledStateObserver("apply", "Enabled", "EnabledChanged")]

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• Best Design for a Facebook clone on GAE Java

  - by charming30

  My current App is written in Python on GAE which can do Contacts management, Genealogy, Social Networking, Photo sharing, Telecom Integration (SMS, iVRS, URL Billing), CRON and performs business logic operations for our Mobile Apps. Current Architecture indlues python, django, jquery, memcache and few telecom APIs. Now, It feels that an SOA Architecture on GAE using Java would be really ideal and scalable for this kind of App where we want to build new features like widgets that users can turn on or off and third party developers can also develop and deploy features. Please correct me or improve the following design decision: UI (Current plan is GWT) Sessions, Security and ACL (Spring MVC 2.x) Reusable Business Logic components (?) Implementation of Web Services (?) Your advice would really help.

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• Div that should take up the "rest of the page" expands beyond the page in ie.

  - by Clox

  Okay, this is REALLY starting to bug me... This page works fine in both Chrome and Firefox. www.bloggan.tk But if it's opened in internet-explorer it always expands beyond the page and introduces the scrollbar no matter what the resolution of the browser is. I have NO idea what change in the html it was that cause this... Here's the blogger-template-html-source I'd REALLY appreciate if someone could help me with this. Thanks in advance! Edit: I've "solved" it for IE using javascript, but that's only temporary (i hope). The version without javascript can be seen here, so that you still will be able to know what I'm talking about. Still trying to solve it, and still hoping for someone to help me.

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• ACCESS VBA - DAO in VB - problem with creating relations

  - by Justin

  So take the following example: Sub CreateRelation() Dim db As Database Dim rel As Relation Dim fld As Field Set db = CurrentDb Set rel = db.CreateRelation("OrderID", "Orders", "Products") 'refrential integrity rel.Attributes = dbRelationUpdateCascade 'specify the key in the referenced table Set fld = rel.CreateField("OrderID") fld.ForeignName = "OrderID" rel.Fields.Append fld db.Relations.Append rel End Sub I keep getting the error, No unique index found for the referenced field of the primary table. if i include the vb before this sub to create in index on the field, it gives me the error: Index already exists. so i am trying to figure this out. if there are not any primary keys set, will that cause this not to work? i am confused by this, but i really really want to figure this out. So orderID is a FOREIGN KEY in the Products Table please help thanks justin

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• VS2010 patce: why it's take so muce time to install it?

  - by Mendy

  Visual Studio 2010 RC has a few of patches release. For more information about them take a look here. What I'm expect from patch program, is to replace a few dll's of the program to a new fixed version of them. But when I run each of this 3 patches, they take a lot of time (5 minutes each), and you think that the program was frozen because the progress bar stay on the begging. This is question may not be so important, but it really interesting me to know, why this happens? It's really confusing to see that each VS2010 (or Microsoft in general) is frozen to 4-5 minutes.

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• Date exception when trying to use date method

  - by Simon Andi

  Hi, I have defined a object model where one of the array elements is a string public static String[] columnNames6 = {"Total Shares", "Total Calls", "Call Strike", "Call Premium", "Call Expiry" }; public static Object[][] data6 = { { new Double(0), new Double(0), new Double(0), new Double(0),"dd/mm/yyyy"}, }; I then use the following code to get the date so that I can use the data method but having no joy - Can someone please tell me why it is throwing an exception after I do this String ExpiryDate = (String)GV.data6[0][4]; System.out.println("DATE STRING IS: " + ExpiryDate); Date EndOptionDate = new Date(ExpiryDate); // SOMETHING WRONG HERE even though it compiles okay //Get Todays's Date Date TodaysDate = new Date(); //Calculate Days Option Expiry long DaysDifference = EndOptionDate.getTime() - TodaysDate.getTime(); Would really appreciate some help as really stuck not sure how I should code the line in bold - new to java, so please excuses my lack of knowledge looked at tutorials can't seem to move forward. Thanks Simon

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• Double linking array in Python

  - by cdecker

  Since I'm pretty new this question'll certainly sound stupid but I have no idea about how to approach this. I'm trying take a list of nodes and for each of the nodes I want to create an array of predecessors and successors in the ordered array of all nodes. Currently my code looks like this: nodes = self.peers.keys() nodes.sort() peers = {} numPeers = len(nodes) for i in nodes: peers[i] = [self.coordinator] for i in range(0,len(nodes)): peers[nodes[i%numPeers]].append(nodes[(i+1)%numPeers]) peers[nodes[(i+1)%numPeers]].append(nodes[i%numPeers]) # peers[nodes[i%numPeers]].append(nodes[(i+4)%numPeers]) # peers[nodes[(i+4)%numPeers]].append(nodes[i%numPeers]) The last two lines should later be used to create a skip graph, but that's not really important. The problem is that it doesn't really work reliably, sometimes a predecessor or a successor is skipped, and instead the next one is used, and so forth. Is this correct at all or is there a better way to do this? Basically I need to get the array indices with certain offsets from each other. Any ideas?

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• Legacy Database, Fluent NHibernate, and Testing my mappings

  - by sdanna

  As the post title implies, I have a legacy database (not sure if that matters), I'm using Fluent NHibernate and I'm attempting to test my mappings using the Fluent NHibernate PersistenceSpecification class. My question is really a process one, I want to test these when I build locally in Visual Studio using the built in Unit Testing framework for now. Obviously this implies (I think) that I'm going to need a database. What are some options for getting this into the build? If I use an in memory database does NHibernate or Fluent NHibernate have some some mechanism for sucking the database schema from a target database or maybe the in memory database can do this? Will I need to manually get the schema to feed to an in memory database? Ideally I would like to get this this setup to where the other developers don't really have to think about it other than when they break the build because the tests don't pass.

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• In LaTeX prefer figures on text-heavy pages.

  - by bjarkef

  Hi LaTeX seems to have a preference for placing figures together on a page, and placing surrounding text on a separate page. Can I somehow change that balance a bit, as I prefer figures to break up the text to avoid too black text-heavy pages. Example: \section{Some section} [Half a page of text] \begin{figure} [...] \caption{Figure text 1} \end{figure} [Half a page of text] \begin{figure} [...] \caption{Figure text 2} \end{figure} [More text] So what LaTeX usually does is to stack the two half pages of text on a single page, and the figures on the following page. I believe this really gives a bad balance, and bores the reader. So can I change that somehow? I know about postfixing the \begin{figure} with [ht!], but often it does not really matter. I would like to configure the balancing algorithms in LaTeX to naturally prefer pages with combined figures and text.

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• Create iPhone app programmatically, in its entirety

  - by miorel

  I recently became interested in iPhone app development, so I've been looking at online tutorials, and also reading a book, trying out the examples as I go along. I'm getting better, but one of the things I still find quite annoying about the usual development model is that I really have no idea what the SDK is really doing behind the scenes to make the app "work" because Apple protects me from this. For example, when I make connections on interface builder, this presumably corresponds to code being generated somewhere... Where that code is and what it does and how it works are not obvious (to me). So I'm wondering, is it possible to create an iPhone app entirely programmatically? That is, have execution start in some main method, which will then programmatically create any views, register event listeners, etc. And if yes, what are some good resources for something like this?

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• JavaScript: What is addEventListener?

  - by Doug

  What is this function? Didn't really find any good examples.

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• iPad title bars. Navbars or toolbars?

  - by Squeegy

  I see a bunch of apps for iPad with really cool title bars. These seem to be a combination of a navigation bar and a toolbar. They usually have a back button and a title as well as men other buttons. And a navbar only supports a left item, a right item and and title view. And the toolbar does not really support back buttons or titles. So how do I implement these rich navbars with many buttons on my UINavigationController driven application?

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• The unmentioned parts of COBOL's history

  - by be nice to me.

  I'm very curious about old programming languages, especially COBOL, and as Wikipedia couldn't really tell me much about this topic, I decided to ask it here: Was COBOL the first programming language really being used in financial, stock and banking systems? Where exactly was COBOL used? Was it used more frequently than Fortran or BASIC, for example? I don't know if you lived at that time, but how did people react to the rising COBOL? Did they expect it to be the future? When has COBOL actually stopped being used to create new, big systems? Are you sure that there are still important legacy apps written in COBOL out there? I can't believe that somehow.

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• Are Symphony and CakePHP too slow to be usable?

  - by Aziz Light

  Until now, I have always said that CakePHP is too bloated and slow. I don't really know that, I just saw "some" benchmarks. What I really want to know, is that if those two frameworks (Symfony and CakePHP) are too slow to be usable in a way that the user will get frustrated. I already know that those frameworks are slower than other alternatives, but that's not the question. I ask the question because I want to create a project management web application and I still hesitate between a couple frameworks. I've had some trouble learning Zend, but imho I haven't tried hard enough. So in conclusion, in addition to the first question above, I would like to ask another question: If I want to create a project management tool (which is a pretty big project), which of the following should you suggest, considering the developement time, the speed of the resulting application, and the robustness of the final product: Symphony CakePHP Zend Framework Also I should mention that I don't know any of those frameworks, and that I want to learn one of them (at least).

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• Is there a more efficient way to set variables on a RadioButton's CheckChanged event?

  - by C Patton

  I have 16 radio buttons in an application of mine.. I have to set a variable based on which one was selected.. and I've produced some very ugly code doing this.. private void Foo_CheckedChanged(object sender, EventArgs e) { convertSource = 1; } private void Bar_CheckedChanged(object sender, EventArgs e) { convertSource = 2; } private void Baz_RadioButton_CheckedChanged(object sender, EventArgs e) { convertSource = 3; } Now, I've been thinking about it and to be honest I thought there might have been a way to do it with a switch.. I just can't conceptualize it in my mind. If anyone could show me a more efficient way of doing this, I'd really appreciate it. It's just really bugging me that such a simple thing as this is taking up fifty to seventy lines of code. thanks, cpatton

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• Constructor in a Interface?

  - by Sebi

  I know its not possible to define a constructor in a interface. But im wondering why, because i think i could be very useful. So you could be sure that some fields in a class are defined for every implementaiton of this interface. For example consider the following message class: public class MyMessage { public MyMessage(String receiver) { this.receiver = receiver; } private String receiver; public void send() { //some implementation for sending the mssage to the receiver } } If a define a Interface for this class so that i can have more classes which implement the message interface, i can only define the send method and not the constructor. So how can i assure that every implementation of this class really has an receiver setted? If i use a method like setReceiver(String receiver) i can't be sure that this method is really called. In the constructor i could assure it.

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