forked from AuroraMiddleware/gtk
Add GtkAccessibleStateSet
Since states can be set or unset, we need a container type that has all the possible states, and a bitmask that tells us which ones are set.
This commit is contained in:
Emmanuele Bassi
parent
55120a25db
commit
823ee58332
208
gtk/gtkaccessiblestateset.c
Normal file
208
gtk/gtkaccessiblestateset.c
Normal file
@ -0,0 +1,208 @@
|
||||
/* gtkaccessiblestateset.c: Accessible state
|
||||
*
|
||||
* Copyright 2020 GNOME Foundation
|
||||
*
|
||||
* SPDX-License-Identifier: LGPL-2.1-or-later
|
||||
*
|
||||
* This library is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2.1 of the License, or (at your option) any later version.
|
||||
*
|
||||
* This library is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#include "config.h"
|
||||
|
||||
#include "gtkaccessiblestatesetprivate.h"
|
||||
|
||||
#include "gtkbitmaskprivate.h"
|
||||
#include "gtkenums.h"
|
||||
|
||||
/* Keep in sync with GtkAccessibleState in gtkenums.h */
|
||||
#define LAST_STATE GTK_ACCESSIBLE_STATE_SELECTED
|
||||
|
||||
struct _GtkAccessibleStateSet
|
||||
{
|
||||
GtkBitmask *states_set;
|
||||
|
||||
GtkAccessibleValue **state_values;
|
||||
};
|
||||
|
||||
static GtkAccessibleStateSet *
|
||||
gtk_accessible_state_set_init (GtkAccessibleStateSet *self)
|
||||
{
|
||||
self->states_set = _gtk_bitmask_new ();
|
||||
self->state_values = g_new (GtkAccessibleValue*, LAST_STATE);
|
||||
|
||||
/* Initialize all state values, so we can always get the full state */
|
||||
for (int i = 0; i < LAST_STATE; i++)
|
||||
self->state_values[i] = gtk_accessible_value_get_default_for_state (i);
|
||||
|
||||
return self;
|
||||
}
|
||||
|
||||
GtkAccessibleStateSet *
|
||||
gtk_accessible_state_set_new (void)
|
||||
{
|
||||
GtkAccessibleStateSet *set = g_rc_box_new0 (GtkAccessibleStateSet);
|
||||
|
||||
return gtk_accessible_state_set_init (set);
|
||||
}
|
||||
|
||||
GtkAccessibleStateSet *
|
||||
gtk_accessible_state_set_ref (GtkAccessibleStateSet *self)
|
||||
{
|
||||
g_return_val_if_fail (self != NULL, NULL);
|
||||
|
||||
return g_rc_box_acquire (self);
|
||||
}
|
||||
|
||||
static void
|
||||
gtk_accessible_state_set_free (gpointer data)
|
||||
{
|
||||
GtkAccessibleStateSet *self = data;
|
||||
|
||||
for (int i = 0; i < LAST_STATE; i++)
|
||||
{
|
||||
if (self->state_values[i] != NULL)
|
||||
gtk_accessible_value_unref (self->state_values[i]);
|
||||
}
|
||||
|
||||
g_free (self->state_values);
|
||||
|
||||
_gtk_bitmask_free (self->states_set);
|
||||
}
|
||||
|
||||
void
|
||||
gtk_accessible_state_set_unref (GtkAccessibleStateSet *self)
|
||||
{
|
||||
g_rc_box_release_full (self, gtk_accessible_state_set_free);
|
||||
}
|
||||
|
||||
void
|
||||
gtk_accessible_state_set_add (GtkAccessibleStateSet *self,
|
||||
GtkAccessibleState state,
|
||||
GtkAccessibleValue *value)
|
||||
{
|
||||
g_return_if_fail (state >= GTK_ACCESSIBLE_STATE_BUSY &&
|
||||
state <= GTK_ACCESSIBLE_STATE_SELECTED);
|
||||
|
||||
if (gtk_accessible_state_set_contains (self, state))
|
||||
gtk_accessible_value_unref (self->state_values[state]);
|
||||
else
|
||||
self->states_set = _gtk_bitmask_set (self->states_set, state, TRUE);
|
||||
|
||||
self->state_values[state] = gtk_accessible_value_ref (value);
|
||||
}
|
||||
|
||||
void
|
||||
gtk_accessible_state_set_remove (GtkAccessibleStateSet *self,
|
||||
GtkAccessibleState state)
|
||||
{
|
||||
g_return_if_fail (state >= GTK_ACCESSIBLE_STATE_BUSY &&
|
||||
state <= GTK_ACCESSIBLE_STATE_SELECTED);
|
||||
|
||||
if (gtk_accessible_state_set_contains (self, state))
|
||||
{
|
||||
g_clear_pointer (&(self->state_values[state]), gtk_accessible_value_unref);
|
||||
self->states_set = _gtk_bitmask_set (self->states_set, state, FALSE);
|
||||
}
|
||||
}
|
||||
|
||||
gboolean
|
||||
gtk_accessible_state_set_contains (GtkAccessibleStateSet *self,
|
||||
GtkAccessibleState state)
|
||||
{
|
||||
g_return_val_if_fail (state >= GTK_ACCESSIBLE_STATE_BUSY &&
|
||||
state <= GTK_ACCESSIBLE_STATE_SELECTED,
|
||||
FALSE);
|
||||
|
||||
return _gtk_bitmask_get (self->states_set, state);
|
||||
}
|
||||
|
||||
GtkAccessibleValue *
|
||||
gtk_accessible_state_set_get_value (GtkAccessibleStateSet *self,
|
||||
GtkAccessibleState state)
|
||||
{
|
||||
g_return_val_if_fail (state >= GTK_ACCESSIBLE_STATE_BUSY &&
|
||||
state <= GTK_ACCESSIBLE_STATE_SELECTED,
|
||||
NULL);
|
||||
|
||||
return self->state_values[state];
|
||||
}
|
||||
|
||||
static const char *state_names[] = {
|
||||
[GTK_ACCESSIBLE_STATE_BUSY] = "busy",
|
||||
[GTK_ACCESSIBLE_STATE_CHECKED] = "checked",
|
||||
[GTK_ACCESSIBLE_STATE_DISABLED] = "disabled",
|
||||
[GTK_ACCESSIBLE_STATE_EXPANDED] = "expanded",
|
||||
[GTK_ACCESSIBLE_STATE_GRABBED] = "grabbed",
|
||||
[GTK_ACCESSIBLE_STATE_HIDDEN] = "hidden",
|
||||
[GTK_ACCESSIBLE_STATE_INVALID] = "invalid",
|
||||
[GTK_ACCESSIBLE_STATE_PRESSED] = "pressed",
|
||||
[GTK_ACCESSIBLE_STATE_SELECTED] = "selected",
|
||||
};
|
||||
|
||||
/*< private >
|
||||
* gtk_accessible_state_set_print:
|
||||
* @self: a #GtkAccessibleStateSet
|
||||
* @only_set: %TRUE if only the set states should be printed
|
||||
* @buffer: a #GString
|
||||
*
|
||||
* Prints the contents of the #GtkAccessibleStateSet into @buffer.
|
||||
*/
|
||||
void
|
||||
gtk_accessible_state_set_print (GtkAccessibleStateSet *self,
|
||||
gboolean only_set,
|
||||
GString *buffer)
|
||||
{
|
||||
if (only_set && _gtk_bitmask_is_empty (self->states_set))
|
||||
{
|
||||
g_string_append (buffer, "{}");
|
||||
return;
|
||||
}
|
||||
|
||||
g_string_append (buffer, "{\n");
|
||||
|
||||
for (int i = 0; i < G_N_ELEMENTS (state_names); i++)
|
||||
{
|
||||
if (only_set && !_gtk_bitmask_get (self->states_set, i))
|
||||
continue;
|
||||
|
||||
g_string_append (buffer, " ");
|
||||
g_string_append (buffer, state_names[i]);
|
||||
g_string_append (buffer, ": ");
|
||||
|
||||
gtk_accessible_value_print (self->state_values[i], buffer);
|
||||
|
||||
g_string_append (buffer, ",\n");
|
||||
}
|
||||
|
||||
g_string_append (buffer, "}");
|
||||
}
|
||||
|
||||
/*< private >
|
||||
* gtk_accessible_state_set_to_string:
|
||||
* @self: a #GtkAccessibleStateSet
|
||||
*
|
||||
* Prints the contents of a #GtkAccessibleStateSet into a string.
|
||||
*
|
||||
* Returns: (transfer full): a newly allocated string with the contents
|
||||
* of the #GtkAccessibleStateSet
|
||||
*/
|
||||
char *
|
||||
gtk_accessible_state_set_to_string (GtkAccessibleStateSet *self)
|
||||
{
|
||||
GString *buf = g_string_new (NULL);
|
||||
|
||||
gtk_accessible_state_set_print (self, TRUE, buf);
|
||||
|
||||
return g_string_free (buf, FALSE);
|
||||
}
|
||||
49
gtk/gtkaccessiblestatesetprivate.h
Normal file
49
gtk/gtkaccessiblestatesetprivate.h
Normal file
@ -0,0 +1,49 @@
|
||||
/* gtkaccessiblestatesetprivate.h: Accessible state container
|
||||
*
|
||||
* Copyright 2020 GNOME Foundation
|
||||
*
|
||||
* SPDX-License-Identifier: LGPL-2.1-or-later
|
||||
*
|
||||
* This library is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2.1 of the License, or (at your option) any later version.
|
||||
*
|
||||
* This library is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#pragma once
|
||||
|
||||
#include "gtkaccessibleprivate.h"
|
||||
#include "gtkaccessiblevalueprivate.h"
|
||||
|
||||
G_BEGIN_DECLS
|
||||
|
||||
typedef struct _GtkAccessibleStateSet GtkAccessibleStateSet;
|
||||
|
||||
GtkAccessibleStateSet * gtk_accessible_state_set_new (void);
|
||||
GtkAccessibleStateSet * gtk_accessible_state_set_ref (GtkAccessibleStateSet *self);
|
||||
void gtk_accessible_state_set_unref (GtkAccessibleStateSet *self);
|
||||
|
||||
void gtk_accessible_state_set_add (GtkAccessibleStateSet *self,
|
||||
GtkAccessibleState state,
|
||||
GtkAccessibleValue *value);
|
||||
void gtk_accessible_state_set_remove (GtkAccessibleStateSet *self,
|
||||
GtkAccessibleState state);
|
||||
gboolean gtk_accessible_state_set_contains (GtkAccessibleStateSet *self,
|
||||
GtkAccessibleState state);
|
||||
GtkAccessibleValue * gtk_accessible_state_set_get_value (GtkAccessibleStateSet *self,
|
||||
GtkAccessibleState state);
|
||||
|
||||
void gtk_accessible_state_set_print (GtkAccessibleStateSet *self,
|
||||
gboolean only_set,
|
||||
GString *string);
|
||||
char * gtk_accessible_state_set_to_string (GtkAccessibleStateSet *self);
|
||||
|
||||
G_END_DECLS
|
||||
@ -16,6 +16,7 @@ gtk_private_sources = files([
|
||||
'fnmatch.c',
|
||||
'tools/gdkpixbufutils.c',
|
||||
'gsettings-mapping.c',
|
||||
'gtkaccessiblestateset.c',
|
||||
'gtkaccessiblevalue.c',
|
||||
'gtkaccessiblevaluestatic.c',
|
||||
'gtkactionhelper.c',
|
||||
|
||||
Loading…
Reference in New Issue
Block a user