Archive

Posts Tagged ‘wallpaper’

my current Ubuntu wallpaper

July 11, 2014 Leave a comment

broken_windows-wallpaper-1920x1080

Categories: fun, ubuntu, windows Tags:

38,157 quality wallpapers

April 6, 2014 Leave a comment

Here (reddit post) you can find a torrent file that points to an 18 GB archive that contains 38,000+ quality wallpapers. The images are collected from imgur.

I downloaded it and put their imgur IDs on Gist, see here.

calling gsettings from crontab

February 6, 2014 Leave a comment

Problem
I have a script that updates my desktop wallpaper every midnight with the Bing background image (see bing.py here).

This script worked fine, but a few months ago it stopped updating my desktop. Today I had some time and tracked down the problem to the gsettings command. The script sets the background with this external command:

gsettings set org.gnome.desktop.background picture-uri file:///absolute/path/to/image.jpg

When I launched the script manually, the background was refreshed. However, when it was called from crontab, the background was not refreshed. gsettings actually set the new image, but the background was not refreshed, so I still saw the old image. Wat?

Solution
I found the solution here. As Radu Rădeanu points out, the only environment variable that is required to run the script correctly as a cron job is the DBUS_SESSION_BUS_ADDRESS, not DISPLAY or XAUTHORITY or GSETTINGS_BACKEND or something else.

Here is how to set the value of DBUS_SESSION_BUS_ADDRESS:

PID=$(pgrep gnome-session)
export DBUS_SESSION_BUS_ADDRESS=$(grep -z DBUS_SESSION_BUS_ADDRESS /proc/$PID/environ|cut -d= -f2-)

Now my crontab file looks like this:

HOME=/home/jabba
DISPLAY=:0
PYTHONPATH=$PYTHONPATH:$HOME/python/lib/jabbapylib

0 0 * * * $HOME/bin.python/bing.sh

The source of bing.sh:

#!/usr/bin/env bash

HOME=/home/jabba
DISPLAY=:0
PYTHONPATH=$PYTHONPATH:$HOME/python/lib/jabbapylib
PID=$(pgrep gnome-session)
export DBUS_SESSION_BUS_ADDRESS=$(grep -z DBUS_SESSION_BUS_ADDRESS /proc/$PID/environ|cut -d= -f2-)

DIR=$HOME/Dropbox/python/lib/jabbapylib/jabbapylib/apps
$DIR/bing.py >>$HOME/bing.log.txt

Set a local file or an image by URL as your wallpaper

April 22, 2012 Leave a comment

Problem
You browse the web and you find a nice image file. “Hey, it’d look cool on my desktop!” Or, you browse your local image files: “Hey, I want to see it as my wallpaper!” How to set a background image painlessly?

Solution
With jabbapylib, of course :) Just use my new little script:

# the image is on the web:
set_wallpaper http://i.imgur.com/t1FRG.jpg

# the image is a local file:
set_wallpaper sunshine.png

That’s all. The script is here. It relies on jabbapylib. Tested under Ubuntu Linux.

Categories: python, ubuntu Tags: ,

Set a wallpaper from command line in Gnome 3 (Unity, Gnome Shell)

April 5, 2012 Leave a comment

Problem
Under Gnome you could set the wallpaper from command line with the following commands:

gconftool-2 --type=string --set /desktop/gnome/background/picture_filename /path/to/image.jpg
gconftool-2 --type=string --set /desktop/gnome/background/picture_options stretched    # stretch the image

You try it again on a newer Ubuntu that uses Unity, and nothing happens! What’s going on?

Solution
The new way of setting a wallpaper is this:

gsettings set org.gnome.desktop.background picture-uri file:///path/to/img.jpg

Notice that you must provide a URI, hence the “file://” prefix.

The first snippet works with Gnome 2. The second one is for Gnome 3. To figure out your Gnome version, launch the command “gnome-session --version“.

Python API
I have a general-purpose Python library called “jabbapylib” (installable with pip). Setting the wallpaper is implemented here. You should use directly the gnome.py module.

This tip is from here and here. Thanks.

Wallpaper Downloader and Rotator for Gnome

April 6, 2011 Leave a comment

Update (20110915): The project has changed a lot since its first release, thus the original post here got completely outdated. I rewrote this blog entry to reflect the current state of the project.

Description

The goal of this project is twofold. First, download images from a wallpaper site. Second, rotate the downloaded images as wallpapers.

Here is the list of changes that I added to the original version:

  • New! XML support is dropped. For setting the images as wallpapers, use the script 02_wallpaper_rotator.py.
  • New! Support for 4walled.org is added!
  • New! Support for wallbase.cc is added!
  • Large images can be resized to fit your screen resolution. By default, the maximum width of images can be 1920 pixels. You can customize it in the config file. It’s recommended, this way the images will occupy much less space on your hard drive.
  • You can specify several categories and the downloader will grab images from all these sites. The same is true for rotator: you can specify several categories and it will pick a random image from the whole list. See the config file for more details.
  • The project includes an automatic wallpaper changer script called 02_wallpaper_rotator.py. You don’t need any third-party managers anymore.
  • You can choose from several categories. You can also specify your favorite category.
  • Screen scraping is done with the BeautifulSoup library.
  • The most important change is the filtering of images that are unsuitable as wallpapers, i.e. small images, portrait images, and images with strange ratio are removed from the list.
  • Support for Flickr images (zioyero’s patch).
  • The URLs of the downloaded images are strored in an SQLite database. This way an already fetched image (either good or bad) won’t be downloaded again.

Supported wallpaper sites

  1. http://www.reddit.com
  2. http://wallbase.cc
  3. http://4walled.org

Usage

First, you might want to customize some settings in the config.py file. The most important thing is the PHOTO_DIR directory, i.e. where to store the downloaded images. Create this directory if it doesn’t exist. Then, simply launch the script:

./01_wallpaper_downloader.py 

You can also add it to your crontab:

$ crontab -e 
10 */2 * * * /absolute_path_to/01_wallpaper_downloader.py

Add the second line to the end of the crontab list. Here the script is called at every two hours (at 0h10, 2h10, etc.).

For setting the images as wallpapers:

./02_wallpaper_rotator.py & 

That is, just launch it in the background. It uses the same config file as the wallpaper downloader. I put it among my startup applications, thus it starts automatically.

Download

You can download the script from https://github.com/jabbalaci/Wallpaper-Downloader-and-Rotator-for-Gnome.

Related posts

Rotating Gnome backgrounds

April 4, 2011 Leave a comment

Problem
You have a bunch of nice wallpaper images that you would like to see on your Desktop. You want Gnome to rotate them in a circular way. Also, specify the duration of an image and the transition between two images.

Solution
You need to create an XML file similar to this:

<?xml version='1.0'?>
<background>
  <starttime>
    <hour>00</hour>
    <minute>00</minute>
    <second>01</second>
  </starttime>
  <static>
    <duration>10.0</duration>
    <file>/trash/wallpapers/A.jpg</file>
  </static>
  <transition>
    <duration>5.0</duration>
    <from>/trash/wallpapers/A.jpg</from>
    <to>/trash/wallpapers/B.jpg</to>
  </transition>
  <static>
    <duration>10.0</duration>
    <file>/trash/wallpapers/B.jpg</file>
  </static>
  <transition>
    <duration>5.0</duration>
    <from>/trash/wallpapers/B.jpg</from>
    <to>/trash/wallpapers/C.jpg</to>
  </transition>
  <static>
    <duration>10.0</duration>
    <file>/trash/wallpapers/C.jpg</file>
  </static>
  <transition>
    <duration>5.0</duration>
    <from>/trash/wallpapers/C.jpg</from>
    <to>/trash/wallpapers/A.jpg</to>
  </transition>
</background>

Here, I rotate three images. One image is shown for 10 seconds and the transition is done smoothly in 5 seconds. After the third image, the first image is shown again, i.e. Gnome will restart processing the file from the beginning.

Usage: You will have to specify this XML file as your background. Right click on the Desktop, Change Desktop Background, Background tab, Add… button. In the bottom right hand corner, switch from Images to All files, then select the XML file. See this screenshot.

Note: Once you set the XML file as your background, you can update it. Gnome will notice the changes and the file will be reloaded. That is, you don’t need to set the file as your background after each modification.

References

Further reading

Related

Cool wallpapers

March 7, 2011 Leave a comment

I will collect here some links with cool wallpapers:

Cool images on reddit (don’t be afraid of the ‘Porn’ titles, it’s not what it seems to be):

  • EarthPorn: Mother Nature in all of her succulent beauty. (great)
  • CityPorn: Oh pedobear, it’s not that kind of CP, silly! (great)
  • SpacePorn: High Res Images of Space, Stargazer’s Delight (great)
  • MachinePorn: Check out the headlights on that porsche. I think my driveshaft just got torqued.
  • Human Porn: Beauty is in the eye of the beholder
  • AnimalPorn: High quality animal photography will make you shiver and moan (great)
  • BotanicalPorn: Feed me Seymour. Feeeed meeeeeee! (nice)
  • DestructionPorn: Burn Baby Burn!
  • GeekPorn
  • AdPorn: Where’s the beef?
  • *Porn: all the previous together

Related

Categories: Uncategorized Tags: , ,

Wallpaper changer

January 10, 2011 Leave a comment

Problem

You have a bunch of images that you would like to see as your desktop wallpapers. You are looking for an application that could rotate these images periodically.

Solution

Try Wally. Just specify the directory where the images are located, set the time interval, and go. Wally runs on Windows, Linux, and Mac OSX.

sudo apt-get install wally

Wally knows a lot more; for a more detailed description check out this post.

Related Work

About a year ago, I used another application for this task called wallpaper-tray. However, this package is gone from Synaptic, it seems it has been replaced by wally.

Update (20110509) [Unity patch]

Wally exists in the system tray. However, Ubuntu 11.04 introduced Unity that comes with a new top panel and applications are not allowed to be there by default. You need to enable explications explicitly. If you want to continue using wally, here is what to do:

First, get your current settings for systray-whitelist:

gsettings get com.canonical.Unity.Panel systray-whitelist

Then, add your application to the above list with this command:

gsettings set com.canonical.Unity.Panel systray-whitelist "[ your_previous_list_here, 'wally']"

This tip is from Antonio, the author of wally.

If you want to download cool wallpapers, you may want to check out my Wallpaper Downloader and Rotator for Gnome. It can be used as a downloader and you can pass the rotating job to wally.

Categories: ubuntu, windows Tags: , , , ,
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