nanogui: Thread: repaint problem

Subject: repaint problem
From: "Hsien-Li Lin" ####@####.####
Date: 3 Mar 2001 04:29:26 -0000
Message-Id: <000801c0a39b$2dc30db0$0100000a@CMLAB.CSIE.NTU.EDU.TW>

    Upgrading my MicroWindows from pre6 to pre7, I found the repaint of window had some problems. When moving the window by mouse, the complete window become black (including the title bar). Somtimes, I use GrText() many times, only one time is effective. I also can not use GrUnmapWindow() to make window invisible. Have anyone encountered these problems?

    I use framebuffer srcreen driver in Redhat 7.0.
    Thanks.

Subject: Re: repaint problem
From: "Greg Haerr" ####@####.####
Date: 3 Mar 2001 19:42:13 -0000
Message-Id: <08c301c0a419$0eec9fe0$15320cd0@gregh>

:     Upgrading my MicroWindows from pre6 to pre7, I found the repaint of window
had some problems. When moving the window by mouse, the complete window become
black (including the title bar). Somtimes, I use GrText() many times, only one
time is effective. I also can not use GrUnmapWindow() to make window invisible.
Have anyone encountered these problems?


This sounds like a potentially bad bug.  Can you send
me any short demo program source code to look at?  I
haven't seen anything like this, but if it operates
differently between pre6 and pre7, I'd like to look
at it.

I'm pretty sure that GrUnmapWindow works, but I have
added some cool optimizations to the window move code
in nanox/srvfunc.c that could cause unexpected problems.
This can be turned off in GrMoveWindow using #if 0
instead of the #if 1.  Keep me posted...

Regards,

Greg