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Hack scrollwheel support into the eventloop, by treating button 4-5

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Wed Jan 27 18:40:50 1999  Owen Taylor  <otaylor@redhat.com>

	* gtk/gtkmain.c (gtk_main_do_event): Hack scrollwheel
	support into the eventloop, by treating button 4-5
	presses on scrolled windows and scrollbars specially.
	Put it here to keep the ugliness small and confined.
	(We need to intercept the normal propagation in any case
	to have this work reliably right now, since some
	subwidgets will trap the button presses)

	* gtk/gtkviewport.c (gtk_viewport_realize): Select for
	BUTTON_PRESS to	support the above hack.
This commit is contained in:
Owen Taylor
1999-01-28 00:57:18 +00:00
committed by Owen Taylor
parent 7934cf9aea
commit 9e5e63f0a1
9 changed files with 139 additions and 6 deletions
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4
gtk/gtkviewport.c
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@ -430,7 +430,9 @@ gtk_viewport_realize (GtkWidget *widget)
attributes.colormap = gtk_widget_get_colormap (widget);
event_mask = gtk_widget_get_events (widget) | GDK_EXPOSURE_MASK;
attributes.event_mask = event_mask;
/* We select on button_press_mask so that button 4-5 scrolls are trapped.
*/
attributes.event_mask = event_mask | GDK_BUTTON_PRESS_MASK;
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;