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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 can I find out a file's path in the text encoding used by PosteRazor?

    - by ændrük
    PosteRazor uses an apparently outdated GUI that is incapable of properly displaying my filenames: For the sake of convenience, I want to be able to open any file in PosteRazor by copying and pasting its path from Nautilus. This works in other applications, but sadly, PosteRazor in unable to understand the path: How can I convert the path that Nautilus generates into a text encoding that is compatible with PosteRazor?

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  • Elantech multitouch breaks after sleep and unknown events

    - by levesque
    EDIT: I previously thought this was related to mouse, but I have been experiencing these issues without a mouse plugged-in during the past weeks. I therefore rewrote the description. The two-finger scrolling on my UX31 works just fine, but sometimes it stops working, the cause is unknown. Multitouch also breaks whenever I go in sleep mode. Logging out and back in fixes the issue, till it happens again (sleep, or the unknown source) Does this sound familiar to anyone here?

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  • Marshalling C# Structs into DX11 cbuffers

    - by Craig
    I'm having some issues with the packing of my structure in C# and passing them through to cbuffers I have registered in HLSL. When I pack my struct in one manner the information seems to be able to pass to the shader: [StructLayout(LayoutKind.Explicit, Size = 16)] internal struct TestStruct { [FieldOffset(0)] public Vector3 mEyePosition; [FieldOffset(12)] public int type; } This works perfectly when used against this HLSL fragment: cbuffer PerFrame : register(b0) { Vector3 eyePos; int type; } float3 GetColour() { float3 returnColour = float(0.0f, 0.0f, 0.0f); switch(type) { case 0: returnColour = float3(1.0f, 0.0f, 0.0f); break; case 1: returnColour = float3(0.0f, 1.0f, 0.0f); break; case 2: returnColour = float3(0.0f, 0.0f, 1.0f); break; } return returnColour; } However, when I use the following structure definitions... // Note this is 16 because HLSL packs in 4 float 'chunks'. // It is also simplified, but still demonstrates the problem. [StructLayout(Layout.Explicit, Size = 16)] internal struct InternalTestStruct { [FieldOffset(0)] public int type; } [StructLayout(LayoutKind.Explicit, Size = 32)] internal struct TestStruct { [FieldOffset(0)] public Vector3 mEyePosition; //Missing 4 bytes here for correct packing. [FieldOffset(16)] public InternalTestStruct mInternal; } ... the following HLSL fragment no longer works. struct InternalType { int type; } cbuffer PerFrame : register(b0) { Vector3 eyePos; InternalType internalStruct; } float3 GetColour() { float3 returnColour = float(0.0f, 0.0f, 0.0f); switch(internaltype.type) { case 0: returnColour = float3(1.0f, 0.0f, 0.0f); break; case 1: returnColour = float3(0.0f, 1.0f, 0.0f); break; case 2: returnColour = float3(0.0f, 0.0f, 1.0f); break; } return returnColour; } Is there a problem with the way I am packing the struct, or is it another issue? To re-iterate: I can pass a struct in a cbuffer so long as it does not contain a nested struct.

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  • Inverse projection: question about w coordinate

    - by fayeWilly
    I have to perform in shader an inverse projection from a u/v of a render target. What I do is: Get NDC as 2*(u,v,depth) - 1 Then world space as tmp = (P*V)^-1 * (NDC,1.0); world space = tmp/tmp.w; This apparently works, but I am confused about the w division there. Why this work? Shouldn't be a multiplication by a w somewhere (as in the "forward" pipeline there is the perpsective division?) Thank you, Faye

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  • How do you track display impressions in Google Analytics on non Google networks?

    - by dee
    Google Analytics has a Multi-Channel funnel analysis feature that we’d like to use to understand assisted conversions and how each channel has impacted on conversion beyond just last interaction attribution. My current understanding is that the impression tracking part of this feature works really well when playing within Google’s search and display networks. Outside of Google’s network I suspect that impression tracking will no longer “just work” and feed back into GA appropriately. What our options are for tracking display impressions on other advertising networks so that we can be attributing value correctly with GA?

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  • ConsumeStructuredBuffer, what am I doing wrong?

    - by John
    I'm trying to implement the 3rd exercise in chapter 12 of Introduction to 3D Game Programming with DirectX 11, that is: Implement a Compute Shader to calculate the length of 64 vectors. Previous exercises ask you to do the same with typed buffers and regular structured buffers and I had no problems with them. For what I've read, [Consume|Append]StructuredBuffers are bound to the pipeline using UnorderedAccessViews (as long as they use the D3D11_BUFFER_UAV_FLAG_APPEND, and the buffers have both D3D11_BIND_SHADER_RESOURCE and D3D11_BIND_UNORDERED_ACCESS bind flags). Problem is: my AppendStructuredBuffer works, since I can append data to it and retrieve it from the application to write to a results file, but the ConsumeStructuredBuffer always returns zeroed data. Data is in the buffer, since if I change the UAV to a ShaderResourceView and to a StructuredBuffer in the HLSL side it works. I don't know what I am missing: Should I initialize the ConsumeStructuredBuffer on the GPU, or can I do it when I create the buffer (as I amb currently doing). Is it OK to bind the buffer with a UAV as described above? Do I need to bind it as a ShaderResourceView somehow? Maybe I am missing some step? This is the declaration of buffers in the Compute Shader: struct Data { float3 v; }; struct Result { float l; }; ConsumeStructuredBuffer<Data> gInput; AppendStructuredBuffer<Result> gOutput; And here the creation of the buffer and UAV for input data: D3D11_BUFFER_DESC inputDesc; inputDesc.Usage = D3D11_USAGE_DEFAULT; inputDesc.ByteWidth = sizeof(Data) * mNumElements; inputDesc.BindFlags = D3D11_BIND_SHADER_RESOURCE | D3D11_BIND_UNORDERED_ACCESS; inputDesc.CPUAccessFlags = 0; inputDesc.StructureByteStride = sizeof(Data); inputDesc.MiscFlags = D3D11_RESOURCE_MISC_BUFFER_STRUCTURED; D3D11_SUBRESOURCE_DATA vinitData; vinitData.pSysMem = &data[0]; HR(md3dDevice->CreateBuffer(&inputDesc, &vinitData, &mInputBuffer)); D3D11_UNORDERED_ACCESS_VIEW_DESC uavDesc; uavDesc.Format = DXGI_FORMAT_UNKNOWN; uavDesc.ViewDimension = D3D11_UAV_DIMENSION_BUFFER; uavDesc.Buffer.FirstElement = 0; uavDesc.Buffer.Flags = D3D11_BUFFER_UAV_FLAG_APPEND; uavDesc.Buffer.NumElements = mNumElements; md3dDevice->CreateUnorderedAccessView(mInputBuffer, &uavDesc, &mInputUAV); Initial data is an array of Data structs, which contain a XMFLOAT3 with random data. I bind the UAV to the shader using the Effects framework: ID3DX11EffectUnorderedAccessViewVariable* Input = mFX->GetVariableByName("gInput")->AsUnorderedAccessView(); Input->SetUnorderedAccessView(uav); // uav is mInputUAV Any ideas? Thank you.

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  • udev hide partition in nautilus for specific user/group

    - by user64780
    I'm trying to hide a partition form a specific group of users in Ubuntu 12.04. I have created a new rule in /etc/udev/rules.d/99-hide-disk.rules with KERNEL="sda3",ENV{UDISKS_PRESENTATION_HIDE}="1" And this works for all users. I tried KERNEL="sda3",ENV{UDISKS_PRESENTATION_HIDE}="1",GROUP="adm",MODE:="0700 but the partition is still hidden. That changes the group and permissions on the device rather than the rule. How do I make the rule only apply to a particular group of users?

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  • Mounting of UDF Bluray in Linux Mint 17

    - by user134885
    I am running Linux mint 17 Cinnamon 64 Bit 2.2.13 - 3.13.0-27 Kernal My machine is a Clevo - fitted with a bluray burner I have tried the following line sudo mount -t udf /dev/scd0 /media/bluray /dev/sr0 But to no avail. Can anyone help me with how to initiate / mount a Bluray on my machine? Thank you to anyone who can give me feedback may sanity and get it going - all works well in windows, but nothing in Linux?

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  • How do I publish updates?

    - by Klikini
    A common issue with Unity is the suspend feature, which reboots some computers when resuming. I have figured out how to fix it, tested it, and it works. You change line 11 of /etc/default/grub to: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_sleep=nonvs" I would like to post this as an update for future Ubuntu versions. How do I do this? More info about the changes: Sony Vaio FW350 reboots instead of waking up after sleep/suspend

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  • Basic Defensive Database Programming Techniques

    We can all recognize good-quality database code: It doesn't break with every change in the server's configuration, or on upgrade. It isn't affected by concurrent usage, or high workload. In an extract from his forthcoming book, Alex explains just how to go about producing resilient TSQL code that works, and carries on working.

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  • Frontend development, where to start?

    - by glitch
    I've been stuck on the backend for years now, working on webservices, DBs, SDKs, APIs and all that jazz, and so that's an area that I have a decent grasp of, but I've absolutely no clue about how the frontend works. What's a good place to start for a backend monkey like me who wants to learn the best practices, latest technologies and the philosophy behind modern web page design and its interaction with the server? I want to be cool like all of the other javascript kids. Thanks!

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  • Problems using custom keyboard layout / symbols file

    - by January
    I have a custom xkb symbols file which looks as follows: // modify the basic German layout to have polish characters default partial alphanumeric_keys xkb_symbols "basic" { include "de(basic)" name[Group1]="Germany - with polish characters"; key <AD03> { [ e, E, eogonek, Eogonek ] }; key <AD09> { [ o, O, oacute, Oacute ] }; key <AC01> { [ a, A, aogonek, Aogonek ] }; key <AC02> { [ s, S, sacute, Sacute ] }; key <AD06> { [ z, Z, zabovedot, Zabovedot ] }; key <AB02> { [ x, X, zacute, Zacute ] }; key <AB03> { [ c, C, cacute, Cacute ] }; key <AB06> { [ n, N, nacute, Nacute ] }; }; The name of the file is depl. I copy the file to /usr/share/X11/xkb/symbols and it works with setxkbmap depl. However, I also tried to add the respective menu entries in the "Text Entry" customization. I have modified the file /usr/share/X11/xkb/rules/evdev.xml and added the following section: <layout> <configItem> <name>depl</name> <shortDescription>depl</shortDescription> <description>German (with Polish characters)</description> <languageList> <iso639Id>ger</iso639Id> </languageList> </configItem> </layout> I have then reconfigured the xkb data with sudo dpkg-reconfigure xkb-data. It works in as much as that the new layout appears as a viable option in the Text Entry dialog, it can be added to the list of dialogs and is visible in the application indicator: However, it does not work, the new symbols are not loaded. No errors are reported in /var/log/Xorg.0.log.

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  • True Ubuntu on Chromebook ARM (samsung)

    - by Vincent beaurain
    I have installed Ubuntu 13.04 on my desktop (runs like a charm). Then I used Crouton to install Ubuntu 12.04 on my chromebook samsung (ARM). It also works quite good. But here comes my question. Can we have a true Ubuntu (preferably 13.04) on my ARM chromebook? It seems that the Crouton/Ubuntu is not 100% the real thing. The best option would be to have the full Ubuntu 13.04 and remove the Chrome OS.

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  • xubuntu 12.04 slow boot

    - by user76390
    my xubuntu 12.04 fresh installed boots in more than 30 seconds, here the first big gap in dmesg: [ 1.984795] firewire_core: created device fw0: GUID 000ae4060034203a, S400 [ 2.336568] EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts: (null) [ 15.465275] ADDRCONF(NETDEV_UP): eth0: link is not ready [ 15.503348] udevd[331]: starting version 175 once booted everything works fine (networks included) thanks for help!

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  • Unable to connect to xmpp account with Thunderbird

    - by devav2
    I am trying to connect to a IM account (WebEx connect - Protocol: Jabber/xmpp) with Thunderbird 15 but it fails to connect. It doesn't throw any error just says "Not Connected". Pidgin works perfectly with the same setting what I provided in Thunderbird 15. So the question is Will Thunderbird chat account(xmpp) support libnss3 Do I debug and collect info, when Thunderbird tries to connect to a chat account? I'm on Ubuntu 12.04

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  • Adding a watermark to MP4 with FFmpeg, compatible with Flash and HTML5 players

    - by ?????? ?????
    How can I add watermark to my MP4 (compatible with Flash player and HTML5 player)? ffmpeg -y -i video.mp4 -acodec copy -b 400k -vf "movie=logo.png [watermark]; [in][watermark] overlay=main_w/2-overlay_w/2:main_h/2-overlay_h/2 [out]" /var/www/videos/out.mp4 The above command works fine in VLC, Windows Media Player, but the HTML5 player can't play out.mp4, Flash player plays only sound. ffmpeg was installed with this command: sudo apt-get install ffmpeg. What am I doing wrong?

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  • How do I get this Mac OS X exposé behavior?

    - by quangtruong1985
    In Mac os x, I can move all windows to the nearest corner by hitting F11 key. I'm just wondering if there is a compiz plugin works like that. I know that there is Scale plugin already. But all that I want is something like this. You'll see, press a key and all windows fly off to nearest corner so I can drag/drop file or do something else on my desktop, then press the key again and all windows fly back.

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  • Can I define keyboard shortcuts using the Super key?

    - by Rasmus
    In 10.04, I had a lot of keyboard shortcuts defined using Super/Mod4 and one single other key, Super+O ran Opera Super+W opened Nautilus pointing to my Work folder, etc. In 11.04, these do not seem to work -- only Super+R works to run the terminal, and Super+Shift+W successfully runs Nautilus. Is there some way I can get these to function again? Adding them in Keyboard Shortcuts does not work, and neither does adding commands in CompizConfig Settings Manager.

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  • Windows is not available in GRUB's boot menu, but Windows Recovery is available

    - by rafalcieslak
    I had Windows Vista installed on a laptop. I have installed separately Ubuntu, wanting to have a dual-boot system. Now, Ubuntu works OK, but I am unable to boot into Windows. GRUB menu provides me with two entries: "Windows Vista (loader)" and "Windows Recovery Environment (loader)". However, BOTH boot into recovery environment. Running sudo update-grub does not change anything. I use an up-to-date 10.10.

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  • Load a part of the page without AJAX [migrated]

    - by nachovall
    I'm developing a web site where I want the left menu to stay fix, while the content of the clicked option is loaded. Actually, what I do is that each menu link using AJAX it return the requested content. Everything works fine but I would like to avoid it because then statistics are difficult to follow (among some other things like Google boots). How can I do the same affect/similar (http://www.foundcrelamps.com/) without javascript?

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  • Smooth pixels while rotating sprite

    - by goodm
    I just started with andengine, so this maybe gonna be silly question. How to make my sprites more smooth while I rotate them? Or maybe it because this is screenshot from tablet? Thanks JohnEye it works: Just need to change my BitmapTextureAtlas from: BitmapTextureAtlas carAtlas = new BitmapTextureAtlas(this.getTextureManager(),100, 63); to: BitmapTextureAtlas carAtlas = new BitmapTextureAtlas(this.getTextureManager(),100, 63, TextureOptions.BILINEAR);

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  • Non-intentional hosting of material that is protected by copyright law

    - by spacemonkey
    I am interested how copyright law works in the case of Rapidshare, Youtube and etc. Just hypothetically speaking, what if I create a website for uploading and sharing MP3 files, and some users start uploading songs in MP3 format that are protected by copyright laws. Can I get sued for this? Knowing that it wasn't me who uploaded that content? Thanks! PS. also maybe there is some good source where I could read about law cavities related to copyright material?

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  • Acer touchpad multitouch not working

    - by Lassi
    I tried to get my Acer laptop's touchpad working properly. I installed driver package (psmouse-alps-dkms_0.10_all) which made the side scrolling working. However, the touchpad supports multitouch (works on Windows), but Synaptiks claims that only 1 finger is detected by the touchpad. Thus 2 finger scrolling, pinch & pan zoom and those are not working. Any ideas how I could get these multi-finger gestures working?

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