gi | Native Go Graphical Interface system | Widget library
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gi Key Features
gi Examples and Code Snippets
def decrypt_message(key: int, message: str) -> str:
"""
>>> decrypt_message(4545, 'VL}p MM{I}p~{HL}Gp{vp pFsH}pxMpyxIx JHL O}F{~pvuOvF{FuF'
... '{xIp~{HL}Gi')
'The affine cipher is a type of monoalpha
def encrypt_message(key: int, message: str) -> str:
"""
>>> encrypt_message(4545, 'The affine cipher is a type of monoalphabetic '
... 'substitution cipher.')
'VL}p MM{I}p~{HL}Gp{vp pFsH}pxMpyxIx JHL
Community Discussions
Trending Discussions on gi
QUESTION
In Rhythmbox (GNOME's music player), when it's playing music, you can open the notifications panel and control the music playback from there. Here's a screenshot. The playback controls are bordered in orange; they have a little music note icon:
This is what I want to make; the media playback controls. Note that, while it is in the notifications panel, it's not technically a notification, because it never pops up on the screen, and you can't make it go away. In the screenshot, you can see the actual notification, which I don't want to make, below the controls.
I know that there's a Gio.Notification
, but it's not quite what I need (unless I'm very much mistaken). I searched in Gio
, Gdk
, and Gtk
, but I didn't find anything. I also searched, among other things, [gtk] media control
and [gtk] media notification
on Stack Overflow, but I didn't find anything there either.
Thanks to the help of BobMorane, I've now figured out that Rhythmbox uses libnotify
for its player controls. I know how to create actions using Notify.Notification
, and I can make them have images, etc., but what I still haven't figured out is how to:
- Make the notification so that it can't be closed;
- Make it so that the action buttons are next to the icon and text, not under;
- Keep the notification on top of all the others in the notifications panel.
Using Python's help()
function to look at gi.repository.Notify.Notification
, the only methods I see that seem to have potential are add_action()
(particularly its user_data
parameter) and set_hint()
(and its variants). Could these be used to achieve my goal?
How do I make a media-control "notification" in Gtk with Python, as explained above?
...ANSWER
Answered 2022-Mar-09 at 21:22I think the technology used by Rhytmbox to acheive this is MPRIS (Media Player Remote Interfacing Specification). As they say on their we page:
The Media Player Remote Interfacing Specification (MPRIS) is a standard D-Bus interface which aims to provide a common programmatic API for controlling media players.
It provides a mechanism for discovery, querying and basic playback control of compliant media players, as well as a tracklist interface which is used to add context to the active media item.
In Rhythmbox, this is implemented as a core plug-in. The code is pretty complicated, but basically implements the MPRIS specification. This implementation then exposes some information and controls out to other applications which want to control the Rhythmbox, like the Gnome Shell in your case. If you deactivate the MPRIS plug-in, the "notification player" will no longer work.
In GNOME Shell, you can see they have their own MPRIS module as well (https://gitlab.gnome.org/GNOME/gnome-shell/-/blob/main/js/ui/mpris.js), which is used to:
- Respond to player notifications and display information (album art, title, buttons, etc).
- Send notifications to the player (ex.: pause the song).
In this module, the formatting of the buttons and all that stuff comes into life as well. This means that on your part (the player's designer), you should have no UI formatting to do (you don't have control over this, GNOME Shell has). What you need to do is expose what is needed by the GNOME Shell by implementing the MPRIS interfaces.
(As a side note: the calendar.js
file is the one implementing the notification list, and you can see it uses MPRIS "notifications", which it puts on top of standard notifications.)
There exist Python libraries to do so, such as Mopidy-MPRIS, bit their support for the GNOME Shell seems not to be working at the moment. You may have to look for D-Bus related libraries on FreeDesktop.org. There exists many bindings, with some in Python.
I hope this points you in the right direction.
QUESTION
I have the following component structure being rendered:
...ANSWER
Answered 2022-Mar-05 at 04:25We could just create a new component where we pass the username
as a prop. In my opinion that is the way to go in react-native. Here is a quick implementation.
QUESTION
Let's say I have a data set of {10, 20, 30}
. My mean and variance here are mean = 20
and variance = 66.667
. Is there a formula that lets me calculate the new variance value if I was to remove 10
from the data set turning it into {20, 30}
?
This is a similar question to https://math.stackexchange.com/questions/3112650/formula-to-recalculate-variance-after-removing-a-value-and-adding-another-one-gi which deals with the case when there is replacement. https://math.stackexchange.com/questions/775391/can-i-calculate-the-new-standard-deviation-when-adding-a-value-without-knowing-t is also a similar question except that deals with adding adding a value instead of removing one. Removing a prior sample while using Welford's method for computing single pass variance deals with removing a sample, but I cannot figure out how to modify it for dealing with population.
...ANSWER
Answered 2022-Jan-13 at 00:01To compute Mean
and Variance
we want 3 parameters:
QUESTION
I've this situation:
...ANSWER
Answered 2021-Dec-26 at 20:48We may use read.dcf
from base R
QUESTION
I am trying to replace words in a string with matches from an object. If a word matches the property from an object, it will be replaced by the relevant value. My problem is cases where there is a character before and after the word that should be replaced, unless the character is a whitespace or a hyphen.
...ANSWER
Answered 2021-Dec-20 at 07:01I would just use an alternation here. Create an array of description variant terms to find, and then do a global replacement.
QUESTION
I'm porting the CEF4Delfi library to Borland C++Builder 5. I make a BPL package from the ported CEF4Delfi source and reference it from my C++Builder 5 code.
I work on Windows 10 64bit.
While porting, I'm stuck on importing DLL functions.
Here is part of the imports:
...ANSWER
Answered 2021-Dec-18 at 11:40OK, thank you all, for making me understand the process of DLL importing.
As IInspectable
and Remy Lebeau
said - the import of DLL
requires linking with the LIB
. Here is more explanations. Also google - "linking a shared library to executable". It is not important whether it is .so
or .dll
, the principals are the same.
One other important point before I give a solution.
As Remy Lebeau
said: several functions
Solution Firstdidn't exist yet (or were introduced shortly before) when BCB5 was released
Fix for makefile
QUESTION
I have a file of IDs called IDs_list.txt that I want to use in order to extract information from a second file which has hundreds of IDs, many of which are not in my specific IDS_list.txt.
I've tried combinations of if and grep but my results keep coming up empty.
Here is an example of what I'm trying to do and what I've done.
...ANSWER
Answered 2021-Dec-17 at 15:16You may use this awk
:
QUESTION
I've installed Windows 10 21H2 on both my desktop (AMD 5950X system with RTX3080) and my laptop (Dell XPS 9560 with i7-7700HQ and GTX1050) following the instructions on https://docs.nvidia.com/cuda/wsl-user-guide/index.html:
- Install CUDA-capable driver in Windows
- Update WSL2 kernel in PowerShell:
wsl --update
- Install CUDA toolkit in Ubuntu 20.04 in WSL2 (Note that you don't install a CUDA driver in WSL2, the instructions explicitly tell that the CUDA driver should not be installed.):
ANSWER
Answered 2021-Nov-18 at 19:20Turns out that Windows 10 Update Assistant incorrectly reported it upgraded my OS to 21H2 on my laptop.
Checking Windows version by running winver
reports that my OS is still 21H1.
Of course CUDA in WSL2 will not work in Windows 10 without 21H2.
After successfully installing 21H2 I can confirm CUDA works with WSL2 even for laptops with Optimus NVIDIA cards.
QUESTION
ANSWER
Answered 2021-Nov-17 at 08:39Regex:
QUESTION
I know I can use sed 's/[[:blank:]]/,/g'
to convert blank spaces into commas or anything of my choosing in my file, but is there a way to somehow set it so that, only the first 5 instances of whitespace convert them into a comma?
This is because my last column has a lot of information written out, so it is annoying when sed coverts all the spaces in that column into commas.
Sample input file:
...ANSWER
Answered 2021-Jul-24 at 20:36With GNU awk for the 3rd arg to match()
:
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