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Add vfuncs for atoms

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This commit is contained in:
Matthias Clasen 2010-12-16 00:37:39 -05:00
parent 62e9bb06a0
commit 28abd0c75f
5 changed files with 104 additions and 76 deletions
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66
gdk/gdkdisplaymanager.c
View File

@ -286,3 +286,69 @@ gdk_display_manager_open_display (GdkDisplayManager *manager,
{
return GDK_DISPLAY_MANAGER_GET_CLASS (manager)->open_display (manager, name);
}
/**
* gdk_atom_intern:
* @atom_name: a string.
* @only_if_exists: if %TRUE, GDK is allowed to not create a new atom, but
* just return %GDK_NONE if the requested atom doesn't already
* exists. Currently, the flag is ignored, since checking the
* existance of an atom is as expensive as creating it.
*
* Finds or creates an atom corresponding to a given string.
*
* Returns: the atom corresponding to @atom_name.
*/
GdkAtom
gdk_atom_intern (const gchar *atom_name,
gboolean only_if_exists)
{
GdkDisplayManager *manager = gdk_display_manager_get ();
return GDK_DISPLAY_MANAGER_GET_CLASS (manager)->atom_intern (manager, atom_name, TRUE);
}
/**
* gdk_atom_intern_static_string:
* @atom_name: a static string
*
* Finds or creates an atom corresponding to a given string.
*
* Note that this function is identical to gdk_atom_intern() except
* that if a new #GdkAtom is created the string itself is used rather
* than a copy. This saves memory, but can only be used if the string
* will <emphasis>always</emphasis> exist. It can be used with statically
* allocated strings in the main program, but not with statically
* allocated memory in dynamically loaded modules, if you expect to
* ever unload the module again (e.g. do not use this function in
* GTK+ theme engines).
*
* Returns: the atom corresponding to @atom_name
*
* Since: 2.10
*/
GdkAtom
gdk_atom_intern_static_string (const gchar *atom_name)
{
GdkDisplayManager *manager = gdk_display_manager_get ();
return GDK_DISPLAY_MANAGER_GET_CLASS (manager)->atom_intern (manager, atom_name, FALSE);
}
/**
* gdk_atom_name:
* @atom: a #GdkAtom.
*
* Determines the string corresponding to an atom.
*
* Returns: a newly-allocated string containing the string
* corresponding to @atom. When you are done with the
* return value, you should free it using g_free().
*/
gchar *
gdk_atom_name (GdkAtom atom)
{
GdkDisplayManager *manager = gdk_display_manager_get ();
return GDK_DISPLAY_MANAGER_GET_CLASS (manager)->get_atom_name (manager, atom);
}

5
gdk/gdkdisplaymanagerprivate.h
View File

@ -39,6 +39,11 @@ struct _GdkDisplayManagerClass
GdkDisplay *display);
GdkDisplay * (*open_display) (GdkDisplayManager *manager,
const gchar *name);
GdkAtom (*atom_intern) (GdkDisplayManager *manager,
const gchar *atom_name,
gboolean copy_name);
gchar * (*get_atom_name) (GdkDisplayManager *manager,
GdkAtom atom);
/* signals */
void (*display_opened) (GdkDisplayManager *manager,

2
gdk/x11/gdkdisplaymanager-x11.c
View File

@ -102,6 +102,8 @@ gdk_display_manager_x11_class_init (GdkDisplayManagerX11Class *class)
manager_class->list_displays = gdk_display_manager_x11_list_displays;
manager_class->set_default_display = gdk_display_manager_x11_set_default_display;
manager_class->get_default_display = gdk_display_manager_x11_get_default_display;
manager_class->atom_intern = _gdk_x11_display_manager_atom_intern;
manager_class->get_atom_name = _gdk_x11_display_manager_get_atom_name;
}
void

14
gdk/x11/gdkprivate-x11.h
View File

@ -159,10 +159,16 @@ void _gdk_x11_device_check_extension_events (GdkDevice *device);
GdkDeviceManager *_gdk_x11_device_manager_new (GdkDisplay *display);
void _gdk_x11_display_manager_add_display (GdkDisplayManager *manager,
GdkDisplay *display);
void _gdk_x11_display_manager_remove_display (GdkDisplayManager *manager,
GdkDisplay *display);
void _gdk_x11_display_manager_add_display (GdkDisplayManager *manager,
GdkDisplay *display);
void _gdk_x11_display_manager_remove_display (GdkDisplayManager *manager,
GdkDisplay *display);
GdkAtom _gdk_x11_display_manager_atom_intern (GdkDisplayManager *manager,
const gchar *atom_name,
gboolean copy_name);
gchar * _gdk_x11_display_manager_get_atom_name (GdkDisplayManager *manager,
GdkAtom atom);
GdkCursor *_gdk_x11_display_get_cursor_for_type (GdkDisplay *display,
GdkCursorType type);

93
gdk/x11/gdkproperty-x11.c
View File

@ -393,87 +393,44 @@ virtual_atom_check_init (void)
if (!virtual_atom_hash)
{
gint i;
virtual_atom_hash = g_hash_table_new (g_str_hash, g_str_equal);
virtual_atom_array = g_ptr_array_new ();
for (i = 0; i < G_N_ELEMENTS (xatoms_offset); i++)
{
g_ptr_array_add (virtual_atom_array, (gchar *)(xatoms_string + xatoms_offset[i]));
g_hash_table_insert (virtual_atom_hash, (gchar *)(xatoms_string + xatoms_offset[i]),
GUINT_TO_POINTER (i));
}
{
g_ptr_array_add (virtual_atom_array, (gchar *)(xatoms_string + xatoms_offset[i]));
g_hash_table_insert (virtual_atom_hash, (gchar *)(xatoms_string + xatoms_offset[i]),
GUINT_TO_POINTER (i));
}
}
}
static GdkAtom
intern_atom (const gchar *atom_name,
gboolean dup)
GdkAtom
_gdk_x11_display_manager_atom_intern (GdkDisplayManager *manager,
const gchar *atom_name,
gboolean dup)
{
GdkAtom result;
virtual_atom_check_init ();
result = GDK_POINTER_TO_ATOM (g_hash_table_lookup (virtual_atom_hash, atom_name));
if (!result)
{
result = INDEX_TO_ATOM (virtual_atom_array->len);
g_ptr_array_add (virtual_atom_array, dup ? g_strdup (atom_name) : (gchar *)atom_name);
g_hash_table_insert (virtual_atom_hash,
g_ptr_array_index (virtual_atom_array,
ATOM_TO_INDEX (result)),
GDK_ATOM_TO_POINTER (result));
g_hash_table_insert (virtual_atom_hash,
g_ptr_array_index (virtual_atom_array,
ATOM_TO_INDEX (result)),
GDK_ATOM_TO_POINTER (result));
}
return result;
}
/**
* gdk_atom_intern:
* @atom_name: a string.
* @only_if_exists: if %TRUE, GDK is allowed to not create a new atom, but
* just return %GDK_NONE if the requested atom doesn't already
* exists. Currently, the flag is ignored, since checking the
* existance of an atom is as expensive as creating it.
*
* Finds or creates an atom corresponding to a given string.
*
* Returns: the atom corresponding to @atom_name.
*/
GdkAtom
gdk_atom_intern (const gchar *atom_name,
gboolean only_if_exists)
{
return intern_atom (atom_name, TRUE);
}
/**
* gdk_atom_intern_static_string:
* @atom_name: a static string
*
* Finds or creates an atom corresponding to a given string.
*
* Note that this function is identical to gdk_atom_intern() except
* that if a new #GdkAtom is created the string itself is used rather
* than a copy. This saves memory, but can only be used if the string
* will <emphasis>always</emphasis> exist. It can be used with statically
* allocated strings in the main program, but not with statically
* allocated memory in dynamically loaded modules, if you expect to
* ever unload the module again (e.g. do not use this function in
* GTK+ theme engines).
*
* Returns: the atom corresponding to @atom_name
*
* Since: 2.10
*/
GdkAtom
gdk_atom_intern_static_string (const gchar *atom_name)
{
return intern_atom (atom_name, FALSE);
}
static G_CONST_RETURN char *
static const gchar *
get_atom_name (GdkAtom atom)
{
virtual_atom_check_init ();
@ -484,18 +441,10 @@ get_atom_name (GdkAtom atom)
return NULL;
}
/**
* gdk_atom_name:
* @atom: a #GdkAtom.
*
* Determines the string corresponding to an atom.
*
* Returns: a newly-allocated string containing the string
* corresponding to @atom. When you are done with the
* return value, you should free it using g_free().
*/
gchar *
gdk_atom_name (GdkAtom atom)
_gdk_x11_display_manager_get_atom_name (GdkDisplayManager *manager,
GdkAtom atom)
{
return g_strdup (get_atom_name (atom));
}