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• Free & Open Source XML Editor Built on Maven

  - by Geertjan

  Here you can download the sources of an XML Editor that uses libraries from NetBeans IDE 7.3 Beta 2 as its basis, while using Maven as its build system: http://java.net/projects/nb-api-samples/sources/api-samples/show/versions/7.3/misc/XMLEditorInMavenNBRCP And here's what it looks like to the user: Note: The Favorites window has been rebranded as "File Browser" and Nimbus is used for the look and feel, thanks to a .conf file that is registered in the POM of the application project.  The cool part is that I didn't type one line of code to get the above result and that only those pieces that an XML Editor actually needs are included in the application, though it could be pruned even further.

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• Best way to get elapsed time in miliseconds in windows

  - by XaitormanX

  I'm trying to do it using two FILETIMEs, casting them to ULONGLONGs, substracting the ULONGLONGs, and dividing the result by 10000. But it's pretty slow, and I want to know if there is a better way to do it.I use c++ with visual studio 2008 express edition. This is what I'm using: FILETIME filetime,filetime2; GetSystemTimeAsFileTime(&filetime); Sleep(100); GetSystemTimeAsFileTime(&filetime2); ULONGLONG time1,time2; time1 = (((ULONGLONG) filetime.dwHighDateTime) << 32) + filetime.dwLowDateTime; time2 = (((ULONGLONG) filetime2.dwHighDateTime) << 32) + filetime2.dwLowDateTime; printf("ELAPSED TIME IN MS:%d",(int)((time2-time1)/10000));

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• How do I render an entire frame to a Texture2D?

  - by redcodefinal

  I asked a question here: C# XNA Make rendered screen a texture2d But, I ended up not getting the exact result I was looking for since I didn't ask the question right. In a game I am writing, I render an extremely large city out of objects, this can cause lag when moving the camera to view things that are off screen. I need a way to render then ENTIRE city, even the stuff that is off screen, and make it into a Texture2D. The answer I chose for the last one didn't work entirely right because it only gets what is on screen, not what is off.

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• What causes Google Analytics tags to work on some machines but not on others?

  - by Dallas

  The title of this question says it all. I am trying to update my code from the deprecated _getTracker() method to _createTracker(), but am experiencing inconsistent results. I have tried traditional and Asynch methods using a JSP include, but they all have the same result. My pageviews, and others in the office all show up in analytics. I have tried various test cases, but their visits are just not registering at all for them, but are showing up for me. The client has tried on multiple machines, and I have walked through with them step by step, so I know it's not just user error. I know that javascript being turned off will cause the tags not to work, but I am wondering if what else might cause the tags to not be recognized. I would appreciate any and all ideas.

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• How can I effectively use a netbook and a desktop computer together for programming?

  - by Mana

  Currently, in my workspace, I have a netbook sitting off to the side gathering dust while I write code on my desktop. As a result, the only use my netbook gets coding-wise is when I'm writing up a quick Python script to model a given problem or concept in class; I never use it at home for coding, or for anything at all, as it is all possible and faster on my (much more powerful) desktop. I feel like this is wrong and that I should be making better use of my netbook. What effective uses have you found for a netbook and a desktop together when programming (or for software development in general)? What are the merits of this practice?

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• Right click doesn't work on HP mini 210 touchpad

  - by user4041

  Need help in getting the right mouse click to work on a HP mini 210-1015TU when using the touchpad. If I plug in a USB mouse, both left click and right click function as normal. Using the touchpad however I can only get the left click to work. Attempting to right click gives the result expected from a left click. As per some comments on a forum I added a file 11-touchpad.conf to /usr/share/X11/xorg.conf.d. I can provide further details if required. This made touchpad operation noticeably smoother but the problem with the right mouse click remains. Not a hardware problem as right clicked worked with 10.04 and still works with Windows 7 starter. 10.10 installed using wubi.

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• Custom keyboard shortcuts are reset. How can I make them set permanently?

  - by Awi

  I'm having a problem with both Ubuntu 12.04 and 12.10 with custom keyboard shorcuts. They are reset after a while (I can't find a pattern but it seems to be when a massive upgrade happens). It happend to me a couple of days ago, when 12.10 got about 27 updates. I've searched launchapd and askubuntu, and found no question similar. My shortucts are not lost on reboot, I still can't find a pattern to identify the problem as I said. I tried also not using Control Center app, but gnome's dconf-editor, but same result as I found on some blog post. My question is, how can I save my custom shorcuts to restore them when this happens? Can somebody help me compose a bug for launchpad, like what package could be causing this, so I can fill a bug report. Thanks in advance.

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• HP mini 210 touchpad issues

  - by user4041

  Need help in getting the right mouse click to work on a HP mini 210-1015TU when using the touchpad. If I plug in a USB mouse, both left click and right click function as normal. Using the touchpad however I can only get the left click to work. Attempting to right click gives the result expected from a left click. As per some comments on a forum I added a file 11-touchpad.conf to /usr/share/X11/xorg.conf.d. I can provide further details if required. This made touchpad operation noticeably smoother but the problem with the right mouse click remains. Not a hardware problem as right clicked worked with 10.04 and still works with Windows 7 starter. 10.10 installed using wubi.

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• cVidya’s MoneyMap Achieves Oracle Exadata Optimized Status

  - by Javier Puerta

  cVidya's MoneyMap running on Oracle Exadata provides extreme performance, including 4x-16x improvement in high data load rates, 4x faster data transformation and reconciliation, and query speeds - from a 2.5 billion record index –  improved from hours to few seconds! The MoneyMap solution enables operators to reconcile information from all network, operations and business support systems and through an on-going automated process, it detects problem areas which impact profitability as a result of revenue leakage, data inconsistencies or resources that are not being used efficiently. Once detected, MoneyMap provides tools to promptly correct and manage the problems to achieve profit maximization Learn more here.

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• Rotate an object given only by its points?

  - by d33tah

  I was recently writing a simple 3D maze FPP game. Once I was done fiddling with planes in OpenGL, I wanted to add support for importing Blender objects. The approach I used was triangulization of the object, then using Three.js to export the points to plaintext and then parsing the result JSON in my app. The example file can be seen here: https://github.com/d33tah/tinyfpp/blob/master/Data/Models/cross.txt The numbers represent x,y,z,u,v of a single vertex, which combined in three make a triangle. Then I rendered such an object triangle-by-triangle and played with it. I could move it back and forth and sideways, but I still have no idea how to rotate it by some axis. Let's say I'd like to rotate all the points by five degrees to the left, how would a code doing it look like?

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• How to transfer a website hosted online to my Virtual Host

  - by user831740

  I'm doing some work on a webpage, meaning I gotta modify a few things. As a result of this I installed apache and all the things that come associated with it, and also installed Joomla, and I got everything running well. My problem is, I need to make apache run this website locally, so I downloaded the public_html folder from the FTP server on my website, but I have absolutely no idea how to implement the website in order to make it run on apache. I've read a few guides, but they all tell me how to create a new website instead of helping me host a website already done.

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• How to split currently used partition on Ubuntu server?

  - by KrizzzyS

  I would like to split a currently used partition that is mounted to /usr directory. I did this because / only had 1 gb of data allocated to it. Now, I did not account for the /home directory when I made this partition (or I would have made two partitions). So I have 14 gb mounted to usr/ with 12 gb free. Is there a way I can reclaim the free space on this partition to make another partition to mount to /home? Here is the result of a df -h: I have tried to split the /dev/mmcblk1p4 into 2 different partitions but I was not able to save the partition table correctly.

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• OpenGL : Keeping alpha in a render buffer

  - by Cyan

  In my current task, i need to render a texture into a render buffer, in order to work on it (apply special filters) there. The result is then considered a "new texture", which is later displayed. This works fine, except when the texture contains some transparent/semi-transparent parts. My current guess it that, within the render buffer, the texture is "merged" with a kind of "grey background". In this case, it obviously impacts the R,G,B color components of transparent pixels. I've yet to find a way around this. Even manually assigning alpha after the rendering process doesn't save the day for semi-transparent pixels, which RGB are "tainted" by the grey background.

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• Cloud proxying service

  - by ChristopherJ

  I have an app that mashes up images from Bing image search, it's hosted on Heroku written in rails. The app is client side in javascript, so the mashup is done on an html5 canvas - this means though that if I fetch the images direct from the Bing server, the canvas gets dirty and I can't save it. As a quick work around, i have set up a route on my rails app that simply proxies the request to Bing and passes the result back through. Obviously this is a very poor performance solution and will eat up my dynos very quickly. Can anyone suggest a more suitable option? At the moment I'm thinking maybe Amazon EC2 with apache mod_rewrite rules would be better performing and more cost effective. Is there a cloud service (or an app I could deploy to a cloud service) that would be more appropriate for proxying requests for me so that my javascript can fetch the images without dirtying the canvas?

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• Has the Appindicator or GtkMenu API changed in Saucy?

  - by marxjohnson

  I've written a custom application indicator, which isn't working properly on saucy. The menu is initialised with a few items, then updates regularly, adding or removing menu items. This worked fine <13.10, but on 13.10, the line that adds the menu to the indicator produces the following warning: Warning: /build/buildd/glib2.0-2.38.0/./gobject/gsignal.c:2475: signal 'child-added' is invalid for instance '0x24390e0' of type 'GtkMenu' self.ind.set_menu(self.menu) And the items added to the menu subsequently dont appear. A bug has been filed against several indicators for the same problem, but it's not clear to me whether this is a problem with the indicators as a result of an API change, or a bug in the GTK or Appindicator libraries. Does anyone know?

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• What is Rails way to save images?

  - by user

  I develop on iOS, and I'm switching from a PHP backend to Ruby on Rails. The interchange format is JSON. A quick Google search for 'save images in Rails' has nearly every result talking about saving image data as blobs to the database. I might be mistaken, but I'm under the impression that saving image data in a database is a huge waste of time and space (as opposed to saving a link to the file location ('/img/subcat/4656.png'). In PHP, it's pretty standard to receive the data, generate a filename, then save that file to disk, and then update the database with the image's location on disk. Is this the same for Rails, or is there some built-in ActiveRecord image functionality I'm not aware of?

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• Possibility Program for number of pieces

  - by Brad

  I would like to put a program together to calculate the number of 60' pieces would be needed from a list of shorter pieces. For example, I sell rebar cut to length from our standard length of 60'-0". Now the length the customer requires are as follows: 343 pc @ 12.5' 35 pc @ 13' 10 pc @ 15' 63 pc @ 15.5'....... There are 56 total lengths ranging from 12.5' to 30.58' The idea is to limit the amount of waste from the 60' piece. The input from the user would be: number of differnt lengths Length of piece to cut from count of different lengths The result would be the number of prime pieces needed to fulfill the order. What well-known algorithms exist that could help me solve this problem?

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• How to install texlive2011?

  - by vrx

  I just moved from Windows to Ubuntu. Software Center in Ubuntu does have texlive2009 package. There is no straightforward installation process from TUG, or from Google search result. I found some installation of Texlive2010 but it does not work. Here are the step: download an texlive2011.iso, 2.3GB and save in local drive mount to a virtual drive install perl tk (ok) "sudo ./install-tl" does not work, "perl ./install-tl" shows pre-installation setting but it does not have the write access to /usr/local/textlive/2011/ Finally, I'm stuck Please guide me with a step by step tutorial or suggest any other solution beside typing in the black screen without knowing what is going on behind the Terminal.

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• Why doesn't the Ubuntu Installer see all of my hard drives

  - by atodd

  I'm trying to setup a dual boot system with Windows Vista 64 (already installed) and Ubuntu 10.10. I added a new drive which is identical to the one Vista is installed on. When I boot into the LiveCD I can see and mount the second drive and edit it in Gparted. However, when I use the installer it will only bring up the drive that already has Vista installed. I've tried everything I know. I'm not sure if its a BIOS setting or something else I've missed. I've also tried both the desktop and alternate amd64 installs with the same result.

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• How to access parent window in dialog

  - by Bruce

  I am using Quickly and created the main window and a dialog. In the main window I am setting access to database (u1db) in the finish_initializing method (self.db=...). After an action I open a dialog where I need access to the database. I thought that I can use self.get_parent() in the dialog to get instance of the main window and access the database, but return value of the get_parent() is None. My question is, how can I access the instance of the parent window in the dialog or perhaps where should I place the instance of the database wrapper? Shortened code: class GuitestWindow(Window): def finish_initializing(self, builder): ... self.db = u1db.open( db_path, create=True ) def on_addaccountbutton_clicked(self, widget): dialog = NewAccountDialog.NewAccountDialog() result = dialog.run() dialog.hide()

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• Would you see any use of a Trilean (True, False, ??)

  - by Sybiam

  I don't know if I'm alone but sometimes I have a function that should return true or false. But in some case there would be a third result that would make more sense. In some language theses cases would be handled with integers or with exception. For exemple you want to handle the age of a user if he is over 18 years old. And you have a function like this. if(user.isAdult(country_code)){ //Go On }else{ // Block access or do nothing } But in some case depending how your app is built I could see case where the birthday field is incomplete. Then this function should return something undetermined. switch(user.isAdult()){ case true: // go on break; case undetermined: //Inform user birthday is incomplete case false: //Block access } As i said we can handle that with Exceptions and Int, but I would find it quite sexy to have a true, false, undetermined embeded in the language instead of using some home defined constants.

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• @OnStart & @OnStop

  - by Geertjan

  In applications based on NetBeans Platform 7.2, you'll be able to replace all your ModuleInstall classes with this code: import org.openide.modules.OnStart; import org.openide.modules.OnStop; @OnStart public final class Installer implements Runnable { @Override public void run() { System.out.println("enable something..."); } @OnStop public static final class Down implements Runnable { @Override public void run() { System.out.println("disable something..."); } } } Build the module and the annotations result in named services, thanks to @NamedServiceDefinition: Aside from no longer needing to register the ModuleInstall class in the manifest, performance of startup will be enhanced, if you use the above approach: https://netbeans.org/bugzilla/show_bug.cgi?id=200636

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• What does ^+Z do to a process

  - by Kifsif

  In command line I wrote: michael@ubuntu:~$ firefox Firefox launched. Command prompt ($) disappeared. Then I pressed ^+z. The result was: [1]+ Stopped firefox Well, Firefox really stopped. It did not react anyhow. So, I could not close it by pressing the cross of the window. By the way, the menu items 'Tools', and 'Help' somehow showed some signs of life. They showed drop-down lists, but nothing more (no reaction to inner menu items). Well, I could not end Firefox through System Monitor. Could you comment on this case: what happened after pressing ^+z?

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• Fixing Gatekeeper Row Cardinality Estimate Issues

  The Query Optimiser needs a good estimate of the number of rows likely to be returned by each physical operator in order to select the best query plan from the most likely alternatives. Sometimes these estimates can go so wildly wrong as to result in a very slow query. Joe Sack shows how it can happen with SQL Queries on a data warehouse with a star schema. Make working with SQL a breezeSQL Prompt 5.3 is the effortless way to write, edit, and explore SQL. It's packed with features such as code completion, script summaries, and SQL reformatting, that make working with SQL a breeze. Try it now.

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• Good source for interview-style coding problems for entry/intermediate developers?

  - by soster

  I have taught myself to code over the past few years and do not have a computer science degree. As a result, I lack experience from many things, such as the basic homework/test questions many CS graduates take for granted. I recently had a tech screen interview where I fumbled and struggled to finish a (relatively) common question, I believe due to this inexperience. My question to all of you is this: do you know a good source for a bunch of these problems that includes answers, for an entry/intermediate developer who is trying to gain coding problem solving experience? The ones I've been able to find on the internet are for coding teams, so they're a bit too complicated for me. Thanks so much in advance.

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