Hi,
I'm looking for a way of drawing with the mouse in a
GtkDrawingArea.
By now I used an ugly code that was :
drawing_area = gtk_drawing_area_new ();
gtk_drawing_area_size (GTK_DRAWING_AREA (drawing_area), GRAPH_W,
GRAPH_H);
GTK_WIDGET_SET_FLAGS (GTK_WIDGET (drawing_area), GTK_CAN_FOCUS);
gtk_widget_set_sensitive (GTK_WIDGET (drawing_area), TRUE);
gtk_signal_connect (GTK_OBJECT (drawing_area), "button-press-event",
GTK_SIGNAL_FUNC (set_pos),
NULL);
gtk_signal_connect (GTK_OBJECT (drawing_area), "expose-event",
GTK_SIGNAL_FUNC (draw_map),
NULL);
gtk_container_add (GTK_CONTAINER (berceau), drawing_area);
gtk_widget_show (drawing_area);
gtk_widget_set_events (widget, -1);
It was Ok. But it was done at the app-init level and now I
need to do it at any time when I change the view... And it
tells me :
Gtk-CRITICAL **: file gtkwidget.c: line 3820 (gtk_widget_set_events):
assertion `!GTK_WIDGET_REALIZED (widget)' failed.
So I added a function attached to an event :
gtk_signal_connect (GTK_OBJECT (drawing_area), "realize",
GTK_SIGNAL_FUNC (set_events_da),
NULL);
which only contains
gtk_widget_set_events (widget, -1);
in order to have it done only when the widget is realized.
But it does not work...
Does any one have an idea ? I'm totaly lost...
--
Sur frg �a se passe bien car les gens qui n'ont pas le permis sont
assez tol�rents entre eux sur les fautes de conduite, sur fufe �a
tourne au massacre car les dino ne laissent pas les neuneus faire.
-+- GR In Guide du G�n�alogiste Ereint� : Le choc des g�n�rations -+-
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