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ui/gtk.c: add ctrl-alt-= support for zoom in acceleration

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Solving wishlist item at
https://bugs.launchpad.net/qemu/+bug/1656710
by accepting Ctrl-Alt-= as an additional zoom-in acceleration.

Using gtk_accel_group_connect to support multiple accelerations
triggering a single menu item since that gtk_accel_map_add_entry
seems to support only one acceleration. A wrapper function
gd_accel_zoom_in is added to support gtk_accel_group_connect's
callback activities.

Signed-off-by: Ziyue Yang <skiver.cloud.yzy@gmail.com>
Message-id: 1485826335-15686-1-git-send-email-skiver.cloud.yzy@gmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Ziyue Yang 2017-01-31 09:32:15 +08:00 committed by Gerd Hoffmann
parent 6b557d7c93
commit 66f6b82bf2
1 changed files with 9 additions and 0 deletions
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9
ui/gtk.c
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@ -105,6 +105,7 @@
#define GDK_KEY_g GDK_g
#define GDK_KEY_q GDK_q
#define GDK_KEY_plus GDK_plus
#define GDK_KEY_equal GDK_equal
#define GDK_KEY_minus GDK_minus
#define GDK_KEY_Pause GDK_Pause
#define GDK_KEY_Delete GDK_Delete
@ -1342,6 +1343,12 @@ static void gd_menu_zoom_in(GtkMenuItem *item, void *opaque)
gd_update_windowsize(vc);
}
static void gd_accel_zoom_in(void *opaque)
{
GtkDisplayState *s = opaque;
gtk_menu_item_activate(GTK_MENU_ITEM(s->zoom_in_item));
}
static void gd_menu_zoom_out(GtkMenuItem *item, void *opaque)
{
GtkDisplayState *s = opaque;
@ -2109,6 +2116,8 @@ static GtkWidget *gd_create_menu_view(GtkDisplayState *s)
"<QEMU>/View/Zoom In");
gtk_accel_map_add_entry("<QEMU>/View/Zoom In", GDK_KEY_plus,
HOTKEY_MODIFIERS);
gtk_accel_group_connect(s->accel_group, GDK_KEY_equal, HOTKEY_MODIFIERS, 0,
g_cclosure_new_swap(G_CALLBACK(gd_accel_zoom_in), s, NULL));
gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), s->zoom_in_item);
s->zoom_out_item = gtk_menu_item_new_with_mnemonic(_("Zoom _Out"));