i made a simple theme that does nothing but load one single image by http from a webserver. Now i want to refresh that image on every refresh of the theme, so that it gets loaded from the webserver again. how do i do that?
There is a callback done on every theme update (based on your interval) and it would be pretty easy to 'wget' an image from the web, dump it in a temp dir, and then use setImagePath to point to the image, so that it 'refreshes' every so often. You'll need to do a redrawWidget to get it to refresh.
Hope that helps.
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
I know that this thread is really old, but perhaps it will help others find what they need.
First, I set interval to 1000 in my .theme.
In my .py file, I setup a counter that is incremented when widgetUpdated(widget) is called. If the counter is 0, as it is on the initial call, the following code is executed:
Other calls to widgetUpdated will increment the counter or reset it to 0 when it has reached the "true" refresh interval (1 minute, 1 hour, etc).
I did this because I was not able to get my image to draw upon the initial load of the widget. I tried putting the createImage/redrawWidget code into initWidget... it fetched the image from the website, but it would not draw the image.
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
I have exactly the same problem: the widget doesn't reload every 5 minutes.
This is my test.theme text:
# general
KARAMBA karamba x=100 y=1 w=250 h=150 interval=300000
#
image x=50 y=50 path="http://www.website.com/status.png" interval=300000
(The meaning of interval=300000 is to reload it every 5 minutes)
This is my test.py text:
#this import statement allows access to the karamba functions
import karamba
import time
import urllib
Further comment: by creating test.py another file was created automagically: test.pyc, which is binairy. I also made another *.py document and there was NO *.pyc document created. What's the difference?
When I look in /home/user/.xsession-errors I see this: (among very much other faults)
sys.path.insert(0, '/usr/share/apps/superkaramba/themes/test/test/')
File "/usr/share/apps/superkaramba/themes/test/test.py", line 7
karamba.redrawWidget(widget "test.theme")
^
SyntaxError: invalid syntax
------------------------------------------------------
What does ImportError mean?
It means that I couldn't load a python add-on fonera.py
If this is a regular theme and doesn't use python
extensions, then nothing is wrong. (In my case: Yes, it IS wrong and it must use python extensions.)
------------------------------------------------------
Something is wrong in line 7, but I cannot figure out "what". I have seen (and read!) lots of threads, but no one is according to my question.
Where did I go wrong? Can somebody please change my documents, so that it does what I want it to do? I think it is quite simple.
I understand -Absolutely Nothing- of programming in python or other programming at all.
The only thing I can is cut and paste and then see what happens. Understanding? Not at all. (smile)
Your answer is very welcome!
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Hi,
i made a simple theme that does nothing but load one single image by http from a webserver. Now i want to refresh that image on every refresh of the theme, so that it gets loaded from the webserver again. how do i do that?
here's my theme:
karamba x=500 y=600 w=32 h=32 interval=30000
image x=0 y=0 path="http://sisiya.fonts.de/ksisiyaapplet.php?par_formID=8" name="sisiyastatus"
You will have to do this through python.
There is a callback done on every theme update (based on your interval) and it would be pretty easy to 'wget' an image from the web, dump it in a temp dir, and then use setImagePath to point to the image, so that it 'refreshes' every so often. You'll need to do a redrawWidget to get it to refresh.
Hope that helps.
I know that this thread is really old, but perhaps it will help others find what they need.
First, I set interval to 1000 in my .theme.
In my .py file, I setup a counter that is incremented when widgetUpdated(widget) is called. If the counter is 0, as it is on the initial call, the following code is executed:
karamba.createImage(widget,0,0,"http://url.for.the/image/to/load")
karamba.redrawWidget(widget)
Other calls to widgetUpdated will increment the counter or reset it to 0 when it has reached the "true" refresh interval (1 minute, 1 hour, etc).
I did this because I was not able to get my image to draw upon the initial load of the widget. I tried putting the createImage/redrawWidget code into initWidget... it fetched the image from the website, but it would not draw the image.
I have exactly the same problem: the widget doesn't reload every 5 minutes.
This is my test.theme text:
# general
KARAMBA karamba x=100 y=1 w=250 h=150 interval=300000
#
image x=50 y=50 path="http://www.website.com/status.png" interval=300000
(The meaning of interval=300000 is to reload it every 5 minutes)
This is my test.py text:
#this import statement allows access to the karamba functions
import karamba
import time
import urllib
karamba.createImage(widget,"test.theme",0,0,"http://www.website.com/status.png")
karamba.redrawWidget(widget "test.theme")
Further comment: by creating test.py another file was created automagically: test.pyc, which is binairy. I also made another *.py document and there was NO *.pyc document created. What's the difference?
When I look in /home/user/.xsession-errors I see this: (among very much other faults)
sys.path.insert(0, '/usr/share/apps/superkaramba/themes/test/test/')
File "/usr/share/apps/superkaramba/themes/test/test.py", line 7
karamba.redrawWidget(widget "test.theme")
^
SyntaxError: invalid syntax
------------------------------------------------------
What does ImportError mean?
It means that I couldn't load a python add-on fonera.py
If this is a regular theme and doesn't use python
extensions, then nothing is wrong. (In my case: Yes, it IS wrong and it must use python extensions.)
------------------------------------------------------
Something is wrong in line 7, but I cannot figure out "what". I have seen (and read!) lots of threads, but no one is according to my question.
Where did I go wrong? Can somebody please change my documents, so that it does what I want it to do? I think it is quite simple.
I understand -Absolutely Nothing- of programming in python or other programming at all.
The only thing I can is cut and paste and then see what happens. Understanding? Not at all. (smile)
Your answer is very welcome!