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[libreoffice-users] Re: Calling a libreoffice basic function from a python script


On 5/18/20 8:20 PM, Mauricio Baeza wrote:
On Mon, 2020-05-18 at 20:00 -0500, Jim wrote:
On 5/17/20 11:10 PM, Mauricio Baeza wrote:
On Sat, 2020-05-16 at 20:26 -0500, Jim wrote:
I started experimenting with calling a basic function from a
python
script. I was surprised that without to much trouble I got it to
work
to
a certain extent.

I am working on linux Mint.

I started with a basic Sub I found. In it's original form it had
3
rgb
values hard coded and it popped up a message box that displayed
the
color value from the rgb input. I rewrote it as a Function that
took
the
rgb values as parameters.

Here is the basic:

Function ColorExampleFunc(r as long, g as long, b as long)
Dim lVar As Long
lVar = rgb(207,231,245)
msgbox "The color " & lVar & " consists of:" & Chr(13) &_
"red= " & red(lVar) & Chr(13)&_
"green= " & green(lVar) & Chr(13)&_
"blue= " & blue(lVar) & Chr(13) , 64,"colors"

end function

Here is the python:

#test_basic.py
import os

result = os.system('soffice
"macro:///Standard.Module1.ColorExampleFunc(207,231,245)"')

This works as it will pop up the message box with the color value
displayed. What I need to do is capture that color value (which
is
usually an eight digit number) in variable in the python script.

I printed result and it was equal to 0.

It's been a long time since I did anything in basic. I imagine I
would
have to get rid of the msgbox code and set the rgb values equal
to a
variable and then return them, but I'm not sure how to do it.

Does anyone know how to get the color value in the python script?

Thanks, Jim



You need used MasterScriptProviderFactory

Change the original Basic function to:

Function ColorExampleFunc(r As Integer, g As Integer, b As Integer)
As
Long
ColorExampleFunc = RGB(r, g, b)
end function

Then you can call, look my example:
https://gitlab.com/snippets/1977700


Best regards


Mauricio,

Thanks for sharing your script with me. I ran it but got a
Segmentation
fault. I scattered some print()'s throughout the script and it looks
like this is the line that may be causing the problem.

script = factory.createScriptProvider('').getScript(url) which is in
the
def _call_macro_basic(location, args) function. Execution does not
continue past that line.

I have been working on automating some of my worksheets using
OOSheet.
This means that I must start libreoffice calc like this:

libreoffice /home/jfb/Dev/Test_OOSheet.ods
--
accept="socket,host=localhost,port=2002;urp;StarOffice.ServiceManager
"

Maybe this is why the script works for you and gives me the
Segmentation
fault. I am going to keep trying get it to work for me as I think it
offers me the best chance of doing what I want to do.

Thanks, Jim




The script work fine, if you execute into LibreOffice. If you want
execute outside LibreOffice, you need used other technique.

But, if you tell me "exactly" your context and that you "exactly" want,
I can help you, but I don't like to guess.


I am enhancing a python script that changes background colors based on hard coded color values. I would like to be able to enter the color I want to use as rgb and receive the color value back to be used in the color changing part of the script.

I was googling for ways to use rgb values to get back a color value when I came across the libreoffice basic function that did what I wanted. That is the only reason I was looking at calling a basic function and getting a return value. I would much prefer a python solution but could not find one.

Thanks, Jim



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