[openbeos] Re: OBOS Poll: Multiple Monitor Support
- From: François Revol <revol@xxxxxxx>
- To: openbeos@xxxxxxxxxxxxx
- Date: Wed, 09 Jan 2002 22:31:46 +0100 (MET)
AFAIK those functions are in libbe.so, and since we will rewrite it, I don't
see why we couldn't "virtualise" them.
That is:
// in libbe:
// the screen on which that app was opened (same way as for the workspace)
int current_screen;
//in the init code:
current_screen = get_current_screen_id();
void activate_workspace(int32 workspace)
{
activate_workspace_on_screen(current_screen, workspace);
}
int32 current_workspace(void)
{
return current_workspace_on_screen(current_screen);
}
So the app_server would have an screen indexed list of workspace.
2 possibilities:
- each screen has its own workspace counts (each start at 0)
[0 .. 4]
[0 .. 7]
[0 .. 3]
- the screen share the same workspace list:
[0 .. 4][5 .. 7][8 .. 31]
with the advantage of not preventing an app from accessing other screens
just by moving a window to another workspace.
Of course there are some side-effects on this...
if we set the workspaces flag of a window to FFFFFFFF, it will be displayed on
the 2 monitors at the same time, _but_ the normal BeOS apps aren't designed to
have the drawing code called for different workspaces at the same time
(without notifying it of a workspace change)... That's becoming tricky =)
I'd like to do it this way, but... Anyway for now we have other things to do
:^)
I really hope I'll be able to get into it Real Soon Now (tm) (that is I hope
by the end of Feb, when I won't have courses anymore, I hope I'll have much
more time for coding)
En réponse à philippe.houdoin@xxxxxxx:
[snip]
> But we have only one B_CURRENT_WORKSPACE (from
> http://bang.dhs.org/be/bebook/The%20Interface%20Kit/functions.html) :
>
> -------------
> void activate_workspace(int32 workspace)
> int32 current_workspace(void)
>
> These functions set and return the active workspace, the one that's
> currently displayed on-screen. The workspace is identified by an index,
> 0-based.
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