Commit d58b9122 authored by Jan Kiszka's avatar Jan Kiszka Committed by Gerd Hoffmann
Browse files

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: default avatarJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: default avatarGerd Hoffmann <kraxel@redhat.com>
parent 7f5e07d9

ui/gtk.c

+23 −0
Original line number Diff line number Diff line
@@ -683,6 +683,27 @@ static gboolean gd_button_event(GtkWidget *widget, GdkEventButton *button, 
    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)

{

    GtkDisplayState *s = opaque;
@@ -1229,6 +1250,8 @@ static void gd_connect_signals(GtkDisplayState *s) 
                     G_CALLBACK(gd_button_event), s);

    g_signal_connect(s->drawing_area, "button-release-event",

                     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_CALLBACK(gd_key_event), s);

    g_signal_connect(s->drawing_area, "key-release-event",