Selection handling in own widget
- From: Gert <gs2 node17530 a2000 nl>
- To: gtk-app-devel-list gnome org
- Subject: Selection handling in own widget
- Date: Wed, 24 Jan 2001 10:40:19 +0100
Hi,
I have written a text output widget for my program, and naturally I want
the user to be able to select text and paste it in another application,
so I added the following lines to my code:
In the _init function:
gtk_selection_add_target(GTK_WIDGET (gmo), GDK_SELECTION_PRIMARY,
GDK_SELECTION_TYPE_STRING, 1);
Added function references in the _class_init:
widget_class->selection_clear_event = gtk_gmo_selection_clear_event;
widget_class->selection_get = gtk_gmo_selection_get;
If the user has selected text I use the:
ok = gtk_selection_owner_set(GTK_WIDGET(gmo),
GDK_SELECTION_PRIMARY, GDK_CURRENT_TIME);
to claim the selection, and if the user then clicks (for example) with the
middle mouse button in an xterm, the gtk_gmo_selection_get function is called,
I fill in the data and everything works.
Well, not very time, and there's the problem. Somtimes, and I can't figure
out when, my _get function doesn't get called...
Another symptom is, that I seem to `loose' the selection, as in that the
gtk_selection_owner_set returns true, but when the user selects the next
letter, gdk_selection_owner_get doesn't match with my GdkWindow...
I tried filling in the other selection related fields, but the only thing I
noticed is that I got an selection_request_event insead of the
selection_get signal, but I don't understand why/what/etc ...
I really hope anyone can help, cause I don't get it anymore :(
Gert
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