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gtk: Add mouse wheel support 

Hook into scroll-event to properly forward mouse wheel movements to the
guest, just like we already do in SDL.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Jan Kiszka 2014-03-11 17:26:44 +01:00 committed by Gerd Hoffmann
parent 7f5e07d9b3
commit d58b912271
1 changed files with 23 additions and 0 deletions
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23
ui/gtk.c
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@ -683,6 +683,27 @@ static gboolean gd_button_event(GtkWidget *widget, GdkEventButton *button,
return TRUE; return TRUE;
} }
static gboolean gd_scroll_event(GtkWidget *widget, GdkEventScroll *scroll,
void *opaque)
{
GtkDisplayState *s = opaque;
InputButton btn;
if (scroll->direction == GDK_SCROLL_UP) {
btn = INPUT_BUTTON_WHEEL_UP;
} else if (scroll->direction == GDK_SCROLL_DOWN) {
btn = INPUT_BUTTON_WHEEL_DOWN;
} else {
return TRUE;
}
qemu_input_queue_btn(s->dcl.con, btn, true);
qemu_input_event_sync();
qemu_input_queue_btn(s->dcl.con, btn, false);
qemu_input_event_sync();
return TRUE;
}
static gboolean gd_key_event(GtkWidget *widget, GdkEventKey *key, void *opaque) static gboolean gd_key_event(GtkWidget *widget, GdkEventKey *key, void *opaque)
{ {
GtkDisplayState *s = opaque; GtkDisplayState *s = opaque;
@ -1229,6 +1250,8 @@ static void gd_connect_signals(GtkDisplayState *s)
G_CALLBACK(gd_button_event), s); G_CALLBACK(gd_button_event), s);
g_signal_connect(s->drawing_area, "button-release-event", g_signal_connect(s->drawing_area, "button-release-event",
G_CALLBACK(gd_button_event), s); G_CALLBACK(gd_button_event), s);
g_signal_connect(s->drawing_area, "scroll-event",
G_CALLBACK(gd_scroll_event), s);
g_signal_connect(s->drawing_area, "key-press-event", g_signal_connect(s->drawing_area, "key-press-event",
G_CALLBACK(gd_key_event), s); G_CALLBACK(gd_key_event), s);
g_signal_connect(s->drawing_area, "key-release-event", g_signal_connect(s->drawing_area, "key-release-event",