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  • Can resizing images with css be good?

    - by Echo
    After reading Is CSS resizing of images still a bad idea?, I thought of a similar question. (too similar? should this be closed?) Lets say you need to use 10 different product image sizes throughout your website and you have 20k-30k different product images, should you use 10 different files for each image size? or maybe 5 different files and use css to resize the other 5? Would there ever be combination that would be good? Or should you always make separate image files? If you use css to resize them, you will save on storage (in GBs) but you will have slight increase in bandwidth and slower loading images(but if images are cached, and you show both sizes of the image would you use less bandwidth and have faster loads?) (But of course you wouldn't want to use css to resize images for mobile sites.)

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  • Partnering with a web designer to build and launch websites for fun. Where should I look for someone? [closed]

    - by FastCoder
    I have been working with web sites and web development for a long time and as a result I am able to build and launch complex websites (social network, dating site, stackoverflow, etc.) in little time (1-3 weeks). Problem is: I know very little about CSS, page layout, photoshop and graphic design. Of course I know HTML but when it comes to putting together something that looks good I am horrible. I just don't have the artistic skills. I wanted to launch some websites without any silly or naive intent to take over the world. Just for fun and to improve the portfolio. How do you guys recommend that I approach this problem of "finding this right partner" with the same mindset? Where should I look for this person? I have no idea... :(

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  • Issues when upgrading gnome-session

    - by Gabriel A. Zorrilla
    I'm having issues since yesterday after an upgrade. GNOME session got messed up somehow and now i cannot install further upgrades nor new apps. Here is what i got from terminal after doing the recommended apt-get install -f; (Reading database ... 166876 files and directories currently installed.) Preparing to replace gnome-session 3.0.1-0ubuntu1~build2 (using .../gnome-session_3.0.2-0ubuntu3~natty1_all.deb) ... Unpacking replacement gnome-session ... dpkg: error processing /var/cache/apt/archives/gnome-session_3.0.2-0ubuntu3~natty1_all.deb (--unpack): trying to overwrite '/usr/share/xsessions/gnome-shell.desktop', which is also in package gnome-shell 3.0.1-0ubuntu1~build1 Errors were encountered while processing: /var/cache/apt/archives/gnome-session_3.0.2-0ubuntu3~natty1_all.deb E: Sub-process /usr/bin/dpkg returned an error code (1) In var/log/apt/history.log, it says: Start-Date: 2011-05-29 17:56:16 Commandline: apt-get -f install Upgrade: gnome-session:amd64 (3.0.1-0ubuntu1~build2, 3.0.2-0ubuntu3~natty1) Error: Sub-process /usr/bin/dpkg returned an error code (1) End-Date: 2011-05-29 17:56:21 No idea what all this means.

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  • Showing schema.org aggregate rating in Google rich snippets

    - by nickh
    After adding schema.org microdata markup for reviews and aggregate ratings, I expected review and rating information to show up in rich snippets. Unfortunately, neither are being shown. Google's Structured Data Testing Tool finds the microdata, and there're no errors or warnings on the page. Any idea what's wrong with the microdata markup? Example 1: Live Page: http://www.shelflife.net/ljn-thundercats-series-3/bengali Google Test: http://www.google.com/webmasters/tools/richsnippets?q=http%3A%2F%2Fwww.shelflife.net%2Fljn-thundercats-series-3%2Fbengali Example 2: Live Page: http://www.shelflife.net/star-wars-mighty-muggs/asajj-ventress Google Test: http://www.google.com/webmasters/tools/richsnippets?q=http%3A%2F%2Fwww.shelflife.net%2Fstar-wars-mighty-muggs%2Fasajj-ventress

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  • Print to File in Black and White (not in greyscale)

    - by user2413
    Hi all, I have these pdf files of c++code and they are colored which would be cool, except that the network printer here is b&w and the printed out codes come in various shades of pale grey which makes them essentially unreadable (specially the comments). I would like everything (text, codes, commands,...) to be printed in the same (black) color. i've tried fuddling with the printer's properties, but the closest thing i see is the 'level of grey' tab, and there i have the choice between 'enhanced' and 'normal' (and it doesn't make a difference in my case). i've tried 'print to file', but i don't see any options there to print to b&w, I've tried installing the 'generic cups printer', but again no options to print to b&w. any idea ? (i'm on 10.10)

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  • Ways to ensure unique instances of a class?

    - by Peanut
    I'm looking for different ways to ensure that each instance of a given class is a uniquely identifiable instance. For example, I have a Name class with the field name. Once I have a Name object with name initialised to John Smith I don't want to be able to instantiate a different Name object also with the name as John Smith, or if instantiation does take place I want a reference to the orginal object to be passed back rather than a new object. I'm aware that one way of doing this is to have a static factory that holds a Map of all the current Name objects and the factory checks that an object with John Smith as the name doesn't already exist before passing back a reference to a Name object. Another way I could think of off the top of my head is having a static Map in the Name class and when the constructor is called throwing an exception if the value passed in for name is already in use in another object, however I'm aware throwing exceptions in a constructor is generally a bad idea. Are there other ways of achieving this?

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  • How to remove individual webapps from Launcher

    - by Luis Alvarado
    Today my launcher looks like a long vertical bar of icons. I have 14 webapp icons on the launcher but there is no option to remove them or an option to no include them (Or even an option to merge them as I asked in a previous question). Is there an option, without having to disable the whole webapp idea, to remove individual webapps from the launcher. Forgot to add that the option to Unlock from Launcher does not appear, but only on the webapps. On the rest of the launcher icons it appears correctly. This is an image of the actual problem (Thanks to koma):

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  • Global keyboard states

    - by Petr Abdulin
    I have following idea about processing keyboard input. We capture input in "main" Game class like this: protected override void Update(GameTime gameTime) { this.CurrentKeyboardState = Keyboard.GetState(); // main :Game class logic here base.Update(gameTime); this.PreviousKeyboardState = this.CurrentKeyboardState; } then, reuse keyboard states (which have internal scope) in all other game components. The reasons behind this are 1) minimize keyboard processing load, and 2) reduce "pollution" of all other classes with similar keyboard state variables. Since I'm quite a noob in both game and XNA development, I would like to know if all of this sounds reasonable.

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  • Junior developer support

    - by lady_killer
    I am a junior developer in my first work experience after university. I joined the company as PHP developer but I ended up developing using C# and ASP.NET. Right from the start I did not receive any training in C# and I was assigned with ASP projects with quite tight deadlines scoped by Senior developers. The few project hand overs I had from other developers were brief and it looked like I had to discover the system myself, in really short time. This is my first job as web developer and I wonder whether it is normal not to have a kind of mentor to show me how to do things, especially because I am completely new to the technology. Also, do you have idea how to tackle this? As you can imagine, it gets really frustrating! Thank you!

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  • Should I use C style in C++?

    - by c.hughes
    As I've been developing my position on how software should be developed at the company I work for, I've come to a certain conclusion that I'm not entirely sure of. It seems to me that if you are programming in C++, you should not use C style anything if it can be helped and you don't absolutely need the performance improvement. This way people are kept from doing things like pointer arithmetic or creating resources with new without any RAII, etc. If this idea was enforced, seeing a char* would possibly be a thing of the past. I'm wondering if this is a conclusion others have made? Or am I being too puritanical about this?

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  • Hack Your Lights for Remote Control

    - by Jason Fitzpatrick
    This clever hack combines a modified wall switch with unused buttons on a universal remote to create one-touch wireless control of the lighting in a media room. Andrew, the tinker behind this home theater hack, writes: I really liked the idea of controlling my “Home Theater” lights with a remote (TV or other), this would save me the exhausting task of heaving myself off the couch to turn the lights on or off. I found one of my remotes has a spare power button, its one of those stupid “universal” remotes that comes with DVD players or TVs but only work if you have all the same brand equipment, I don’t so this made a good option for a light switch. Hit up the link below to check out more photos of his project and download the source code. Why Does 64-Bit Windows Need a Separate “Program Files (x86)” Folder? Why Your Android Phone Isn’t Getting Operating System Updates and What You Can Do About It How To Delete, Move, or Rename Locked Files in Windows

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  • Is donationware a good monetization model for developers?

    - by Nathan Campos
    I've been developing for Android for about 2 years (and ~1 year for iOS), releasing freeware and open source applications (mostly because my AdSense account was disabled in 2010), but recently I had an idea for a great app that I wanted to get some money, since it would take some effort to develop and also I would like to test this "commercial" model to know if this could make me invest more time improving and making my apps better. Since my AdSense account was disabled and then I'll not be about to sell it on the Google Play Store, I thought about making it a donationware so I would distribute it for free (and probably open source too) and users that really liked the app and wanted to give me a thanks and a incentive to continue developing it could donate any amount of money. So, what's your experience with donationware? Is it worth compared to paid apps?

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  • Flash intro or embedded video?

    - by Ray
    So a client of mine wants his homepage to start off something like this: http://www.roche-bobois.com/#/en-CA/home (It's basically a Flash intro that starts with a vector drawing of a furniture showroom that eventually transitions into the image of the actual showroom). Given that some of his users will be using an iPad to view his site, what are some of the alternatives that other developers here use? I'm thinking: Option 1: With PHP, detect if the user is using an iPad/iPhone by checking their user agent string. If they are using a mobile device, then forward to m.abccompany.com (mobile version of the site). Option 2: Convert the Flash video to MP4 or AVI and then embed that, which would allow all users to view his site. Any suggestions if either of these approaches are a good idea?

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  • How does one improve one's problem-solving ability?

    - by gcc
    How can one improve one's problem-solving ability? Everyone says same thing: "a real programmer knows how to handle real problem." But they forget how they learn this ability, or where (I know in school, no one gives us any ability, of course in my opinion). If you have any idea except above ones, feel free when you give your advice solve more problems do more exercises, write code, search google then write more ... For me, my question is like "use complex/known library instead of using your own." In other words, I want your personal experience, book recommendation, webpage on problem solving. Moreover, look your problem-solving method and give us your personal ability as if it is an algorithm

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  • how to follow python polymorphism standards with math functions

    - by krishnab
    So I am reading up on python in Mark Lutz's wonderful LEARNING PYTHON book. Mark makes a big deal about how part of the python development philosophy is polymorphism and that functions and code should rely on polymorphism and not do much type checking. However, I do a lot of math type programming and so the idea of polymorphism does not really seem to apply--I don't want to try and run a regression on a string or something. So I was wondering if there is something I am missing here. What are the applications of polymorphism when I am writing functions for math--or is type checking philosophically okay in this case.

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  • Messaging technologies between applications ?

    - by Samuel
    Recently, I had to create a program to send messages between two winforms executable. I used a tool with simple built-in functionalities to prevent having to figure out all the ins and outs of this vast quantity of protocols that exist. But now, I'm ready to learn more about the internals difference between each of theses protocols. I googled a couple of them but it would be greatly appreciate to have a good reference book that gives me a clean idea of how each protocol works and what are the pros and cons in a couple of context. Here is a list of nice protocols that I found: Shared memory TCP List item Named Pipe File Mapping Mailslots MSMQ (Microsoft Queue Solution) WCF I know that all of these protocols are not specific to a language, it would be nice if example could be in .net. Thank you very much.

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  • Oracle Social Network Developer Challenge Winners

    - by kellsey.ruppel
    Originally posted by Jake Kuramoto on The Apps Lab blog. Now that OpenWorld 2012 has wrapped, I have time to tell you all about what happened. Maybe you recall that Noel (@noelportugal) and I were running a modified hackathon during the show, the Oracle Social Network Developer Challenge. Without further ado, congratulations to Dimitri Gielis (@dgielis) and Martin Giffy D’Souza (@martindsouza) on their winning entry, an integration between Oracle APEX and Oracle Social Network that integrates feedback and bug submission with Oracle Social Network Conversations, allowing developers, end-users and project leaders to view and discuss the feedback on their APEX applications from within Oracle Social Network. Update: Bob Rhubart of OTN (@brhubart) interviewed Dimitri and Martin right after their big win. Money quote from Dimitri when asked what he’d buy with the $500 in Amazon gift cards, “Oracle Social Network.” Nice one. In their own words: In the developers perspective it’s important to get feedback soon, so after a first iteration and end-users start to test, they can give feedback of the application. Previously it stopped there, and it was up to the developer to communicate further with email, phone etc. With OSN every feedback and communication gets logged and other people can see the discussion immediately as well. For the end users perspective he can now communicate in a more efficient way to not only the developers, but also between themselves. Maybe many end-users (in different locations) would like to change some behaviour, by using OSN they can see the entry somebody put in with a screenshot and they can just start to chat about it. Some key technical end users can have lighten the tasks of the development team by looking at the feedback first and start to communicate with their peers. For the project manager he has now the ability to really see what communication has taken place in certain areas and can make decisions on that. Later, if things come up again, he can always go back in OSN and see what was said at that moment in time. Integrating OSN in the APEX applications enhances the user experience, makes the lives of the developers easier and gives a better overview to project managers. Incidentally, you may already know Dimitri and Martin, since both are Oracle Ace Directors. I ran into Martin at the Ace Director briefings Friday before the conference started, and at that point, he wasn’t sure he’d have time to enter the Challenge. After some coaxing, he and Dimitri agreed to give it a go and banged out their entry on Tuesday night, or more accurately, very early Wednesday morning, the day of the Challenge judging. I think they said it took them about four hours of hardcore coding to get it done, very much like a traditional hackathon, which is essentially a code sprint from idea to finished product. Here are some screenshots of the workflow they built. #gallery-1 { margin: auto; } #gallery-1 .gallery-item { float: left; margin-top: 10px; text-align: center; width: 33%; } #gallery-1 img { border: 2px solid #cfcfcf; } #gallery-1 .gallery-caption { margin-left: 0; } I love this idea, i.e. closing the loop between web developers and users, a very common pain point, and so did our judges. Speaking of, special thanks to our panel of three judges: Reggie Bradford (@reggiebradford), serial entrepreneur, founder of Vitrue and SVP of Cloud Product Development at Oracle Robert Hipps (@roberthipps), VP of Development for Oracle Social Network and my former boss Roland Smart (@rsmartx), VP of Social Marketing and the brains behind the Oracle Social Developer Community Finally, thanks to everyone who made this possible, including: The three other teams from HarQen (@harqen), TEAM Informatics (@teaminformatics) and Fishbowl Solutions (@fishbowle20) featuring Friend of the ‘Lab John Sim (@jrsim_uix), who finished and presented entries. I’ll be posting the details of their work this week. The one guy who finished an entry, but couldn’t make the judging, Bex Huff (@bex). Bex rallied from a hospitalization due to an allergic reaction during the show; he’s fine, don’t worry. I’ll post details of his work next week, too. The 40-plus people who registered to compete in the Challenge. Noel for all his hard work, sample code, and flying monkey target, more on that to come. The Oracle Social Network development team for supporting this event. Everyone in legal and the beta program office for their help. And finally, the Oracle Technology Network (@oracletechnet) for hosting the event and providing countless hours of operational and moral support. Sorry if I’ve missed some people, since this was a huge team effort. This event was a big success, and we plan to do similar events in the future. Stay tuned to this channel for more. 

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  • Can I get sensible labels for lm-sensors output for "applesmc-isa-0300"?

    - by TK Kocheran
    2011 8,3 Macbook Pro running 64bit 11.10. When I run sensors from the lm-sensors package, I get a lot of information, but no way to understand it: coretemp-isa-0000 Adapter: ISA adapter Physical id 0: +53.0°C (high = +86.0°C, crit = +100.0°C) Core 0: +53.0°C (high = +86.0°C, crit = +100.0°C) Core 1: +52.0°C (high = +86.0°C, crit = +100.0°C) Core 2: +50.0°C (high = +86.0°C, crit = +100.0°C) Core 3: +49.0°C (high = +86.0°C, crit = +100.0°C) applesmc-isa-0300 Adapter: ISA adapter Left side : 2001 RPM (min = 2000 RPM) Right side : 2001 RPM (min = 2000 RPM) TB0T: +33.2°C TB1T: +33.2°C TB2T: +29.0°C TC0C: +52.8°C TC0D: +47.2°C TC0E: +51.8°C TC0F: +53.0°C TC0J: +1.0°C TC0P: +44.5°C TC1C: +52.0°C TC2C: +52.0°C TC3C: +52.0°C TC4C: +52.0°C TCFC: +0.2°C TCGC: +51.0°C TCSA: +52.0°C TCTD: +0.0°C TG0D: +44.5°C TG0P: +43.2°C THSP: +37.5°C TM0S: +57.5°C TMBS: +0.0°C TP0P: +50.0°C TPCD: +55.0°C The core temp info is really useful and I'm pretty sure that Left/Right Side refers to the two fans within, but otherwise, I have no idea what this information means. Is there something I can use to normalize this information?

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  • How could RDBMSes be considered a fad?

    - by StuperUser
    Completing my Computing A-level in 2003 and getting a degree in Computing in 2007, and learning my trade in a company with a lot of SQL usage, I was brought up on the idea of Relational Databases being used for storage. So, despite being relatively new to development, I was taken-aback to read a comment (on Is LinqPad site quote "Tired of querying in antiquated SQL?" accurate? ) that said: [Some devs] despise [SQL] and think that it and RDBMS are a fad Obviously, a competent dev will use the right tool for the right job and won't create a relational database when e.g. flat file or another solution for storage is appropriate, but RDBMs are useful in a massive number of circumstances, so how could they be considered a fad?

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  • Lubuntu 12.04 PPC slow startup and shutdown

    - by Carlo Bertuccini
    I've installed Lubuntu 12.04 on a Powerbook G4 (PowerPC 1GHz, 1 gb ram, Geforce MX 440). Everything works perfectly except the startup and shutdown. To startup my system I have to wait about 3 minutes (and similar time to shutdown) Giving a look @ /var/log/dmesg I noticed the following [drm] nouveau 0000:00:10.0: Detected an NV10 generation card (0x017900a5) checking generic (b8004000 151800) vs hw (b8000000 80000000) fb: conflicting fb hw usage nouveaufb vs 0Ffb NVDA,Displ - removing generic driver The only issue concerns Nouveau ... inside my /var/log/kern.log says what follows BUG: soft lockup - CPU#0 stuck for 22s! I've booted passing the "nouveau.modeset=0" parameter and the system boot in 15 seconds but with 4 bit graphics -- Any idea how to fix? Thanks in advance for any help

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  • xkb for simple remap

    - by Den Rimus
    I've faced some issues after remapping keyboard with xmodmap: settings get reset randomly after 2-20 minutes after applying. Googled it but no help: something resets them, but all mentions apply to xfce, while I'm under usual 14.04 Ubuntu with unity. I saw phrases like 'use xkb, forget xmodmap', but still have no idea how to do that. It's either classified or very complicated, because amount of info on that is significantly smaller than for xmodmap way. Here's my list of customisations: xmodmap -e "keycode 84 = Down" xmodmap -e "keycode 79 = Home" xmodmap -e "keycode 80 = Up" xmodmap -e "keycode 83 = Left" xmodmap -e "keycode 85 = Right" xmodmap -e "keycode 87 = End" xmodmap -e "keycode 90 = Insert" xmodmap -e "keycode 91 = Delete" xmodmap -e "keycode 89 = Next" xmodmap -e "keycode 81 = Prior" where keycodes are corresponding keys on numpad, with numlock = off (basically, I'm replacing KP_Del with Delete, KP_Home with Home etc - don't ask why)) Can someone help to find a way to do that using xkb - at least one of the lines? And where to find the "names" of keys for other so I could do the rest by example?

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  • Tiled game: how to correct load background image ?

    - by stighy
    Hi, i'm a newbie. I'm trying to develop a 2d game (top-down view). I would like to load a standard background, a textured ground... My "world" is big, for example 3000px X 3000px. I think it is not a good idea to load a 3000px x 3000px image and move it... So, how is the best practice ? To load a single small image (64x64) and repeat it for N times ? If yes, ok, but how i can manage the "background" movement ? Thanks Bye!

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  • Implement blogging system as a part of a web application/website

    - by Rana
    I am working on developing a website, where registered members will be able to write blog/tutorials and each registered site user will be a registered blogger automatically. Site news/announcements will be posted through it too. Now, will it be a wise idea to use wordpress for this purpose, or should I develop custom blogging system myself? Also, is there any impact if I use a subdomain for the blog section. user same domain (sub directory url) for the blog section. Looking forward to hear your feedback/comments/suggestions. Thanks.

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  • Shared Data Source name error underscore characters added

    - by mick
    The name of our shared data source in RS (report server) is "AF1 Live Database" (no underscore characters - just spaces between words) and is the same in report builder in VS. However, the following error pops up when the RDL of this report is uploaded onto our company site and run. (error we are receiving...) The report server cannot process the report or shared dataset. The shared data source 'AF1_Live_Database' for the report server or SharePoint site is not valid. Browse to the server or site and select a shared data source. (rsInvalidDataSourceReference) We have no idea why the error reports the shared data source as 'AF1_Live_Database' with underscore characters? As this appears to be the problem that keeps the report from running we are seeking your help, thanks.

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  • March 2010 Chicago Architects Group Wrap Up

    - by Tim Murphy
    I would like to thank everyone who came out to last night’s event and especially thank Mike Vogt for the presentation. I think at first everyone glassed over since very few of us spend a lot of time with Integration Architecture and most of us live more in the application architecture space.  Learning about subject like BPEL and BPMN was refreshing. The discussion after Mike’s talk was lively and I think that everyone came away with a good idea of areas they might want to know more about.  People stuck around long after the meeting was over. If you are interested in the topic you can find the slides here. Be sure to join us next month when Matt Hidinger talks about Onion Architecture.  Details are coming soon. del.icio.us Tags: CAG,Chicago Architects Group

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