Re: A cross-platform status icon api
- From: Matthias Clasen <mclasen redhat com>
- To: gtk-devel-list gnome org
- Subject: Re: A cross-platform status icon api
- Date: Mon, 29 Aug 2005 12:38:14 -0400
On Sat, 2005-08-27 at 00:23 +0300, Mart Raudsepp wrote:
> On Fri, 2005-08-26 at 16:01 -0400, Matthias Clasen wrote:
> > Anything we add in that area has to be examined for
> > cross-platformability. Does anybody have a pointer to the
> > MSDN docs about balloon messages on Win32 ?
>
> A balloon message is just a tooltip with a certain style on win32.
>
> Tooltip Control Reference:
> http://msdn.microsoft.com/library/en-us/shellcc/platform/commctls/tooltip/reflist.asp
>
> Tooltip styles, TTS_BALLOON being the one worth noting:
> http://msdn.microsoft.com/library/en-us/shellcc/platform/commctls/tooltip/styles.asp
>
> Shell_NotifyIcon function reference, used to send messages to the
> taskbar status area, including adding of an icon together with an
> associated balloon styled tooltip, and modifying it to show a balloon:
> http://msdn.microsoft.com/library/en-us/shellcc/platform/shell/reference/functions/shell_notifyicon.asp
>
> Data structure for the notification, including a field to set the icon
> of the balloon:
> http://msdn.microsoft.com/library/en-us/shellcc/platform/shell/reference/structures/notifyicondata.asp
>
> Hope that helps.
>
Thanks for those pointers. Looks like Win32 has much more than we would
here, and it should be possible to do what Colins notification bubble
does:
- display a message with title, icon and detail text
- optionally set a timeout after which the bubble goes away on its own
- send a signal when the bubble is clicked
- send a signal when the bubble times out
Here are some more comments on Colins eggnotificationbubble:
- We can't take a widget for the icon, it should probably be a pixbuf
- We may also want to allow stock icons/named icons instead of a pixbuf
- There are quite a few details which the implementation currently
doesn't handle currently:
* the bubble needs to be repositioned if the user changes panel
orientation
* the bubble "stem" needs to be redrawn if the tray icon moves
because another status icon appears/disappears or because the
tray moves inside the panel
* Concurrent notifications from different status icons should probably
avoid each other
* if the panel is not sticky, does the bubble go away if the user
switches to a desktop without the panel ?
I am going to commit the GtkStatusIcon code initially without
notification.
Regards, Matthias
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