Global Object / Other solutions question
Hi,
I am stuck again. This time the issue is with the need of global object.
This is the general idea of the program:
Main -> Window -> Drawing Area.
I have 2 threads (pthreads) going on in Main, other taking care of the database (refreshing every minute) and the other one doing the drawing(while taking data from said db). Now, I would like to refresh Drawing Area at the same time as the database refreshes. There is a function in Drawing Area that can make it happen.
What is the best way to go about this? I am not too keen on anything global(and I have no knowledge how to implement one in this situation) Might be even impossible. All I know is that I need to use the same objects that exist, I cannot create new ones. As a beginner, I have no idea what other choices I have.
All help is truly appreciated!
I am stuck again. This time the issue is with the need of global object.
This is the general idea of the program:
Main -> Window -> Drawing Area.
I have 2 threads (pthreads) going on in Main, other taking care of the database (refreshing every minute) and the other one doing the drawing(while taking data from said db). Now, I would like to refresh Drawing Area at the same time as the database refreshes. There is a function in Drawing Area that can make it happen.
What is the best way to go about this? I am not too keen on anything global(and I have no knowledge how to implement one in this situation) Might be even impossible. All I know is that I need to use the same objects that exist, I cannot create new ones. As a beginner, I have no idea what other choices I have.
All help is truly appreciated!
Then wouldn't it be easier to do everything in one thread? Set up a timer event so that f() gets called every 60 seconds, and have f() refresh the database and redraw the UI.
Doing it in one thread is hard due to the GTKmm.
Or I did not understand the timer concept. Window and Drawing area have to "run through", so there cannot be anything that blocks that.
Or I did not understand the timer concept. Window and Drawing area have to "run through", so there cannot be anything that blocks that.
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