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• How to set PyGtk toolbuttons label color?

  - by Voidcode

  I am just beginning learning Quickly and PyGtk, after see this info-video on Ubuntu-develperment. As in the video I am adding a toolbar to my glade-file, then some buttons. To style the toolbar for ubuntu I do: self.toolbar = self.builder.get_object("toolbar") context = self.toolbar.get_style_context() context.add_class(Gtk.STYLE_CLASS_PRIMARY_TOOLBAR) The style works, But the label-text-color for the buttons look like this: How can I changes the text color?

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• How to get rid of the background gradient of the inline GtkToolbar?

  - by Dima

  When you run the below code, it will show an inline toolbar in a window. Notice how the inline toolbar has a stand-out backbround. Is there a way to apply CSS to get rid of it and make blend with regular window color? #!/usr/bin/python3 from gi.repository import Gtk button_names = [Gtk.STOCK_ABOUT, Gtk.STOCK_ADD, Gtk.STOCK_REMOVE, Gtk.STOCK_QUIT] buttons = [Gtk.ToolButton.new_from_stock(name) for name in button_names] toolbar = Gtk.Toolbar() toolbar.set_show_arrow(False) for button in buttons: toolbar.insert(button, -1) style_context = toolbar.get_style_context() style_context.add_class(Gtk.STYLE_CLASS_INLINE_TOOLBAR) grid = Gtk.Grid() grid.add(toolbar) label = Gtk.Label() grid.add(label) window = Gtk.Window() window.set_size_request(200, 50) window.add(grid) window.connect('delete-event', Gtk.main_quit) window.show_all() Gtk.main()

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• Improving Shopfloor Data Collection with Oracle Manufacturing Operations Center

  Successful factories around the world leverage information to drive their production and supply chains. New tools are available today to further catapult the data collection, analysis, contextualization and collaboration to the various stakeholders involved in the manufacturing process. Oracle Manufacturing Operations Center (MOC) addresses the factory's need for accurate and timely information about product and process quality, insight into shop floor operations, and performance of production assets. It solves the complex problem of connecting fragmented disconnected shop floor data to the business context of your ERP and provides the solid foundation for running Continuous Improvement (CI) programs such as Lean and Six Sigma.

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• Ubuntu App Contest - Open Source Libraries

  - by Chao

  I just found out about and started looking into the Ubuntu App Contest, and I wanted to double check the contest's stance on using open source libraries built by others that are freely available on the web. I read through the rules and some of the other Q&As, and it sounds like using these libraries would not be allowed (since it could mean the app isn't built from scratch, and the library would not be in the Ubuntu archive - although I could bundle the library with the app), and I just wanted to verify this assumption. Thanks! Chao

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• Drawing different per-pixel data on the screen

  - by Amir Eldor

  I want to draw different per-pixel data on the screen, where each pixel has a specific value according to my needs. An example may be a random noise pattern where each pixel is randomly generated. I'm not sure what is the correct and fastest way to do this. Locking a texture/surface and manipulating the raw pixel data? How is this done in modern graphics programming? I'm currently trying to do this in Pygame but realized I will face the same problem if I go for C/SDL or OpenGL/DirectX.

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• How do I commit changes to a text file on button press?

  - by boywithaxe

  I've written a small app that creates a GUI for setting up uShare. Currently it depends heavily on the 'w' (write) and 'a' (append) functions to generate/edit ushare.conf file. But I've been trying to find a way for the app to store all the changes until a save button is pressed, and only then committing them to the actual file. I think that would be the best way of getting around having the user press enter every time they change any field (and indeed allow for GtkCheckButton).

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• Removing mdadm array and converting to regular disks while preserving data

  - by Jeffrey Kevin Pry

  I have a 6 disk (2TB each) mdadm RAID 5 volume created in Ubuntu 12.04 Server. However, I'm moving to a different solution and want to "unraid" my disks but keep the data. Only 50% is in use. From what I can surmise I basically have to do this recursively for each physical disk. Fail the disk Format the failed disk Move a portion of files to the new disk. Reshape the array Shrink the logical volume md0 This seems like a very time consuming process. Is there an easier way to do this (automatically perhaps) without buying new disks to temporarily hold the data? I am also aware that during this processing my RAID volume will be degraded and vulnerable the entire time. I am not too concerned about this and will be using battery backup and moving the most important files off first. Thank you for your help!

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• Are there any specific workflows or design patterns that are commonly used to create large functional programming applications?

  - by Andrew

  I have been exploring Clojure for a while now, although I haven't used it on any nontrivial projects. Basically, I have just been getting comfortable with the syntax and some of the idioms. Coming from an OOP background, with Clojure being the first functional language that I have looked very much into, I'm naturally not as comfortable with the functional way of doing things. That said, are there any specific workflows or design patterns that are common with creating large functional applications? I'd really like to start using functional programming "for real", but I'm afraid that with my current lack of expertise, it would result in an epic fail. The "Gang of Four" is such a standard for OO programmers, but is there anything similar that is more directed at the functional paradigm? Most of the resources that I have found have great programming nuggets, but they don't step back to give a broader, more architectural look.

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• How can I search a Drupal site with the new Unity lens?

  - by Ognjen

  I'm creating a simple Unity lense for my college site which is based on Drupal, but I don't know how to adapt this command for Drupal API. Please help, it's python. We now create our query url, using the Wikipedia opensearch API url = ("%s/w/api.php?action=opensearch&limit=25&format=json&search=%s" % (self.wiki, search)) I'm using template to write lense following Wikipedia example http://developer.ubuntu.com/2012/04/how-to-create-a-wikipedia-unity-lens-for-ubuntu/. I don't know python but Im familiar with C. This Drupal API calling is the only problem I have to successfully develop a lense. Please help!

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• Data Recovery using testDisk failing!

  - by iamcreasy

  I am trying to recover an accidentally formatted partition using testDisk, After selecting the partition[pic 1] and selecting Undeleted[pic 1], it says, No deleted file found.[pic 2] 1 2 I know it's a silly question, but I just want to make sure that those data are really out of reach. Or is there anything I can do to recover them? :( I tried to repair my partition table using bootrec.exe/FixMBR & bootrec.exe/FixBoot, can this be the reason why testdisk can't work anymore? I haven't written anything on that partition. Is there any low level approach to retrieve all the lost data?

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• Un-used Indexes on MDP_MATRIX Consuming Resources

  - by user702295

  Disable un-used Indexes: As much as it is recommended to create relevant indexes, it is advised not to have too many indexes on the mdp_matrix table.  Too many indexes will cause long waits on the table as indexes needs to get updated every time the table is updated.  There are many seeded indexes on mdp_matrix, every out of the box data model level has an index on the matrix table.  If a level is unused in the specific data model of the implementation, it is advisable to disable that index.  If the customer is not sure if and how indexes are utilized, the DBA can monitor all indexes.  After a few cycles of operation, the DBA should go over that list and see which indexes have not been used.  Consider disabling them. There are scripts on the net to monitor indexes or use the monitoring usage clause in the alter index statement.

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• Interview - "The Future of Data Centers"

  Mark Sunday, senior vice president and CIO at Oracle, talks about next-generation data centers, green computing, and the Oracle Utah Compute Facility.

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• How do I get a get the left pane of my GUI app to talk to the right pane?

  - by bas-brain

  I need help on developing a UI for a app. Basically this app will have do panels, left and right, lets say. On the left panel will be displayed customers and when I click on the customer name on the right will appear tabs with information, some kind of form with name, email, picture, etc. I already developed the left panel with DictionaryGrid which I could found on tutorials and so on, but no idea on the right panel which is the form side. Any help??? Just the idea and the development is with me, thanks very much

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• Stacked Launcher Item Double Click Behaviour on Alt-tab

  - by Brandon Bertelsen

  Let's say that you have multiple firefox windows open. What you see happen is an additional arrow points to it's icon in the launcher. However, if you double click the icon, it displays all of the windows in a spread out fashion, similar to the behaviour from pushing Super + W, but only for that program group. Is it possible to make this window spreading behaviour occur with alt-tab? PS: No idea what tags I should use, or if the language (jargon) in the title or question is appropriate.

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• Quickly, code and ui are not communicating well, at all

  - by Alex

  I have been following the http://developer.ubuntu.com/resources/tutorials/all/diy-media-player-with-pygtk/ tutorial, i followed everything in it to the letter. i even set the signal of the tool button "openbutton" to on_openbutton_clicked. i run the code, click the button, nothing happens. i cant seem to get the button to do anything. any help will be super amazing!! http://pastebin.com/7Tq99Ytg pastebin to the .py file.

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• How to ramp up my data structures skills after a long hibernation

  - by Anon

  I was pretty good with algorithms and data structures once, a long long time ago. Since then, I programmed professionally, and then went to manage a small team, which totally shot my tech skills in this field back. I've decided I want to be a developer again, and work for Google. The thing is, I'm so out of practice, that if I were to be interviewed right now I would surely flunk out in 10 minutes. What training program would you recommend for me to get back into shape? I already started this weekend by going back to the absolute basics and implementing a few sort algorithms, linked list, and hash table. Next, I think I'll read through the entire course material on the other basic data structures and graph algorithms. I want to find a focused set of practical exercises I can do in a relatively short amount of time, to juggle the old brain cells. I know this stuff - I just need to remind myself that I know it.

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• Ubuntu App Submission won't allow the "free" bubble to be checked

  - by Compt

  I am at the final stages of the Ubuntu App Developer Showdown, and I'm right at the point where I am submitting my app. The problem I run in to however, is that even though buy is at $0.00, it will not allow me to click on the "free" button, and keep that configuration saved. So when I go to "preview your app", it shows it saying "USD $0.00 ---- Buy" instead of saying "Free ---- Install". So I was wondering if it makes any difference or not.

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• Open Dialog, created with quickly does not work

  - by Marian Lux

  I tried to open a dialog like David Planella describs here (and quickly help add): Open Custom Dialog Windows (PyGTK + Quickly) But this don't works for me. I always get the same Error-Message if I open the creadted Dialog: AttributeError: 'module' object has no attribute 'NewDialogNameDialog' (Note: My Dialog-Name is replaced with "NewDialogNameDialog" to be more general.) I tried to test a tutorial for the Ubuntu app showdown to learn how to use quickly and python. I can also add the whole source-code if you wish.

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• Alt-Tab in 12.04 requires pressing Enter to select app, can I disable that?

  - by Brett Hoerner

  Alt+Tab quickly opens the switcher for me, but tabbing over to the next app and releasing the keys will just leave it selected, not switch to it. I have to press Enter to actually switch to the app. How do I make it automatically switch when I release like every other switcher out there? Same behavior occurs when using Super+Tab with either the Compiz Ring Switcher or Shift Switcher. This seems different from the 11.10 behavior.

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• when i marked all check boxes in settings,update fails.

  - by user67966

  "W:Failed to fetch cdrom://Ubuntu 12.04 LTS Precise Pangolin - Release i386 (20120423)/dists/precise/main/binary-i386/Packages Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs , W:Failed to fetch cdrom://Ubuntu 12.04 LTS Precise Pangolin - Release i386 (20120423)/dists/precise/restricted/binary-i386/Packages Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs , E:Some index files failed to download. They have been ignored, or old ones used instead." the above information is a crash info.It happens when i manually update ubuntu.I have marked all check-boxes in settings which was by default not marked. What is the main reason for this problem?

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• nagios3 Error: Could not read object configuration data!

  - by user1493730

  I have a brand new install of nagios3 on ubuntu 12.04. After I log in to the web interface and click any link I get the error: Error: Could not read object configuration data! Here are some things you should check in order to resolve this error: Verify configuration options using the -v command-line option to check for errors. Check the Nagios log file for messages relating to startup or status data errors. I ran it with the -v option and it reported no errors: Total Warnings: 0 Total Errors: 0 Things look okay - No serious problems were detected during the pre-flight check The nagios log and apache error log and debug log all have nothing regarding this. Does anyone know how to turn on logging that will give me some kind of useful error? Or if anyone knows how to fix this specific problem without additional logging, I guess that's okay too. Thanks!

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• GtkFileChooserButton 'Select Folder' mode returns no path

  - by user8592

  I have added a GtkFileChooserButton to my app via Glade. It is set to folder selection mode. When the widget is clicked it shows a dropdown list of Nautilus bookmarks with an 'other' option in the end. A new file chooser dialog is launched when 'other' is clicked. The button is not connected to any other custom file chooser dialog. The connecting signal I am using is 'file-set' and I am retrieving the fullpath of user selected folder using Gtk.FileChooser.get_current_folder (). This setup works fine if user selects a folder from 'other' option. But if a user selects a bookmark from dropdown list, no path is returned. How to solve this? Is there a way to disable this dropdown list and directly go to the filechooser dialog? I want to use GtkFileChooserButton only so that the user can get a preview of his selected folder.

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• How do I show an animated gif in the app I am developing?

  - by Agmenor

  I am developing Discvur, a simple Imgur viewer, for the Ubuntu App Showdown. Therefore I use quickly + Glade + Gtk + Python. PyGObject instead of PyGtk would be highly appreciated. I would like to display some animated gifs in my program. What I tried was inserting a viewport, then an image, and then in the 'Edit Image' field I selected a gif animation (in my case "../media/akO1i.gif"). When I run my app, the gif is displayed but it is not moving (I only see the first frame). Is it possible to show animated gifs in my app? What is the best and/or easiest way to do it: use the image widget, or a WebKit field, or something else?

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• Engaging Your Staff in Data Protection

  Although breaches can&#146;t be eliminated, staff engagement in a data protection program can reduce risk.

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• Google Analytics Export API - nextPagePath data

  - by Btibert3

  I am probably missing something obvious, but I do not understand when I query: start.date = DATE_START, end.date = DATE_END, dimensions = c("ga:pagePath","ga:previousPagePath"), metrics = c("ga:pageviews"), filters = mypageofinterest, table.id = "ga:mytable", max.results=RESULTS my data return as expected, all of the previous pages including (entrance). However, when I modify the code to be nextPagePath start.date = DATE_START, end.date = DATE_END, dimensions = c("ga:pagePath","ga:nextPagePath"), metrics = c("ga:pageviews"), filters = mypageofinterest, table.id = "ga:mytable", max.results=RESULTS only one line of data are returned; the pagepath and nextpagepath are identical with itself. I replicated this result using the Query Explorer. What am I missing or doing wrong? I was expecting to see a large number of "next" pages, including (exit). Thanks in advance.

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