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libwnck/libwnck-opacity-2.patch

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Index: libwnck/window-action-menu.c
===================================================================
--- libwnck/window-action-menu.c.orig
+++ libwnck/window-action-menu.c
@@ -49,6 +49,7 @@ typedef enum
ABOVE,
MOVE,
RESIZE,
+ CHANGE_OPACITY,
PIN,
UNPIN,
LEFT,
@@ -69,6 +70,7 @@ struct _ActionMenuData
GtkWidget *above_item;
GtkWidget *move_item;
GtkWidget *resize_item;
+ GtkWidget *opacity_item;
GtkWidget *close_item;
GtkWidget *workspace_separator;
GtkWidget *pin_item;
@@ -181,6 +183,15 @@ item_activated_callback (GtkWidget *menu
case RESIZE:
wnck_window_keyboard_size (amd->window);
break;
+ case CHANGE_OPACITY: {
+ int opacity_value;
+
+ opacity_value =
+ GPOINTER_TO_INT (g_object_get_data (G_OBJECT (menu_item),
+ "opacity"));
+
+ wnck_window_set_opacity (amd->window, opacity_value);
+ } break;
case PIN:
if (!viewport_mode)
wnck_window_pin (amd->window);
@@ -1059,6 +1070,47 @@ wnck_create_window_action_menu (WnckWind
gtk_menu_shell_append (GTK_MENU_SHELL (menu),
amd->workspace_item);
+ if (wnck_screen_net_wm_supports (wnck_window_get_screen (amd->window),
+ "_NET_WM_WINDOW_OPACITY"))
+ {
+ guint present_opacity;
+ gint j;
+
+ amd->opacity_item = gtk_menu_item_new_with_mnemonic (_("_Opacity"));
+ gtk_widget_show (amd->opacity_item);
+
+ submenu = gtk_menu_new ();
+ gtk_menu_item_set_submenu (GTK_MENU_ITEM (amd->opacity_item),
+ submenu);
+
+ gtk_menu_shell_append (GTK_MENU_SHELL (menu), amd->opacity_item);
+
+ present_opacity = wnck_window_get_opacity (window);
+ for (j = 0; j < 4; j++)
+ {
+ GtkWidget *item;
+ gchar *label;
+ guint o;
+
+ label = g_strdup_printf ("%d%%", (j + 1) * 25);
+
+ item = make_menu_item (amd, CHANGE_OPACITY);
+
+ o = (j + 1) * 25;
+ g_object_set_data (G_OBJECT (item), "opacity", GINT_TO_POINTER (o));
+
+ if (o == present_opacity)
+ gtk_widget_set_sensitive (item, FALSE);
+
+ gtk_menu_shell_append (GTK_MENU_SHELL (submenu), item);
+
+ set_item_text (item, label);
+ set_item_stock (item, NULL);
+
+ g_free (label);
+ }
+ }
+
separator = gtk_separator_menu_item_new ();
gtk_widget_show (separator);
gtk_menu_shell_append (GTK_MENU_SHELL (menu),
Index: libwnck/window.c
===================================================================
--- libwnck/window.c.orig
+++ libwnck/window.c
@@ -110,6 +110,8 @@ struct _WnckWindowPrivate
char *res_class;
char *res_name;
+
+ guint32 opacity;
/* true if transient_for points to root window,
* not another app window
@@ -157,6 +159,7 @@ struct _WnckWindowPrivate
guint need_update_startup_id : 1;
guint need_update_wmclass : 1;
guint need_update_wmhints : 1;
+ guint need_update_opacity : 1;
guint need_update_frame_extents : 1;
guint need_emit_name_changed : 1;
@@ -173,6 +176,7 @@ enum {
ICON_CHANGED,
ACTIONS_CHANGED,
GEOMETRY_CHANGED,
+ OPACITY_CHANGED,
LAST_SIGNAL
};
@@ -201,6 +205,7 @@ static void update_wintype (WnckWindow
static void update_transient_for (WnckWindow *window);
static void update_startup_id (WnckWindow *window);
static void update_wmclass (WnckWindow *window);
+static void update_opacity (WnckWindow *window);
static void update_frame_extents (WnckWindow *window);
static void unqueue_update (WnckWindow *window);
static void queue_update (WnckWindow *window);
@@ -407,6 +412,15 @@ wnck_window_class_init (WnckWindowClass
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
+
+ signals[OPACITY_CHANGED] =
+ g_signal_new ("opacity_changed",
+ G_OBJECT_CLASS_TYPE (object_class),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (WnckWindowClass, opacity_changed),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
}
static void
@@ -556,6 +570,7 @@ _wnck_window_create (Window xwindow
window->priv->need_update_startup_id = TRUE;
window->priv->need_update_wmclass = TRUE;
window->priv->need_update_wmhints = TRUE;
+ window->priv->need_update_opacity = TRUE;
window->priv->need_update_frame_extents = TRUE;
window->priv->need_emit_name_changed = FALSE;
window->priv->need_emit_icon_changed = FALSE;
@@ -2320,6 +2335,29 @@ wnck_window_set_geometry (WnckWindow
gravity_and_flags, x, y, width, height);
}
+guint
+wnck_window_get_opacity (WnckWindow *window)
+{
+ guint64 o;
+
+ g_return_val_if_fail (WNCK_IS_WINDOW (window), 0);
+
+ o = ((guint64) window->priv->opacity * 1005) / G_MAXUINT32;
+
+ return o / 10;
+}
+
+void
+wnck_window_set_opacity (WnckWindow *window,
+ guint opacity)
+{
+ g_return_if_fail (WNCK_IS_WINDOW (window));
+
+ _wnck_change_opacity (WNCK_SCREEN_XSCREEN (window->priv->screen),
+ wnck_window_get_xid (window),
+ (((guint64) opacity * G_MAXUINT32) / 100));
+}
+
/**
* wnck_window_is_visible_on_workspace:
* @window: a #WnckWindow.
@@ -2565,6 +2603,13 @@ _wnck_window_process_property_notify (Wn
window->priv->need_update_frame_extents = TRUE;
queue_update (window);
}
+ else if (xevent->xproperty.atom ==
+ _wnck_atom_get ("_NET_WM_WINDOW_OPACITY"))
+ {
+ window->priv->need_update_opacity = TRUE;
+ queue_update (window);
+ }
+
}
void
@@ -3138,6 +3183,17 @@ update_frame_extents (WnckWindow *window
}
static void
+update_opacity (WnckWindow *window)
+{
+ if (!window->priv->need_update_opacity)
+ return;
+
+ window->priv->need_update_opacity = FALSE;
+
+ window->priv->opacity = _wnck_get_opacity (window->priv->xwindow);
+}
+
+static void
force_update_now (WnckWindow *window)
{
WnckWindowState old_state;
@@ -3172,6 +3228,7 @@ force_update_now (WnckWindow *window)
*/
update_workspace (window); /* emits signals */
update_actions (window);
+ update_opacity (window);
update_frame_extents (window); /* emits signals */
get_icons (window);
Index: libwnck/window.h
===================================================================
--- libwnck/window.h.orig
+++ libwnck/window.h
@@ -272,6 +272,9 @@ struct _WnckWindowClass
/* Changed size/position */
void (* geometry_changed) (WnckWindow *window);
+ /* Changed opacity */
+ void (* opacity_changed) (WnckWindow *window);
+
/* Padding for future expansion */
void (* pad1) (void);
void (* pad2) (void);
@@ -401,6 +404,9 @@ void wnck_window_set_geometry (WnckWindo
int width,
int height);
+guint wnck_window_get_opacity (WnckWindow *window);
+void wnck_window_set_opacity (WnckWindow *window, guint opacity);
+
gboolean wnck_window_is_visible_on_workspace (WnckWindow *window,
WnckWorkspace *workspace);
gboolean wnck_window_is_on_workspace (WnckWindow *window,
Index: libwnck/xutils.c
===================================================================
--- libwnck/xutils.c.orig
+++ libwnck/xutils.c
@@ -1143,6 +1143,33 @@ _wnck_toggle_showing_desktop (Screen *s
_wnck_error_trap_pop ();
}
+void
+_wnck_change_opacity (Screen *screen,
+ Window xwindow,
+ guint32 opacity)
+{
+ XEvent xev;
+
+ xev.xclient.type = ClientMessage;
+ xev.xclient.serial = 0;
+ xev.xclient.send_event = True;
+ xev.xclient.display = gdk_display;
+ xev.xclient.window = xwindow;
+ xev.xclient.message_type = _wnck_atom_get ("_NET_WM_WINDOW_OPACITY");
+ xev.xclient.format = 32;
+ xev.xclient.data.l[0] = opacity;
+ xev.xclient.data.l[1] = 0;
+ xev.xclient.data.l[2] = 0;
+ xev.xclient.data.l[3] = 0;
+ xev.xclient.data.l[4] = 0;
+
+ XSendEvent (gdk_display,
+ RootWindowOfScreen (screen),
+ False,
+ SubstructureRedirectMask | SubstructureNotifyMask,
+ &xev);
+}
+
char*
_wnck_get_session_id (Window xwindow)
{
@@ -1317,6 +1344,19 @@ _wnck_get_frame_extents (Window xwindow
return retval;
}
+guint32
+_wnck_get_opacity (Window xwindow)
+{
+ int val;
+
+ if (_wnck_get_cardinal (xwindow,
+ _wnck_atom_get ("_NET_WM_WINDOW_OPACITY"),
+ &val))
+ return val;
+
+ return G_MAXUINT32;
+}
+
void
_wnck_select_input (Window xwindow,
int mask)
Index: libwnck/xutils.h
===================================================================
--- libwnck/xutils.h.orig
+++ libwnck/xutils.h
@@ -110,6 +110,9 @@ void _wnck_activate_workspace (Screen *s
void _wnck_change_viewport (Screen *screen,
int x,
int y);
+void _wnck_change_opacity (Screen *screen,
+ Window xwindow,
+ guint32 opacity);
char* _wnck_get_session_id (Window xwindow);
int _wnck_get_pid (Window xwindow);
@@ -125,6 +128,9 @@ gboolean _wnck_get_frame_extents (Windo
int *top_frame,
int *bottom_frame);
+guint32 _wnck_get_opacity (Window xwindow);
+
+
void _wnck_select_input (Window xwindow,
int mask);
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