Add new files atkstateset.c and atkstateset.h

Change atk_object_get_state to atk_object_ref_state_set

1 files changed, 353 insertions, 0 deletions

diff --git a/atk/atkstateset.c b/atk/atkstateset.c
new file mode 100755
index 0000000..5f5e683
--- /dev/null
+++ b/atk/atkstateset.c
@@ -0,0 +1,353 @@
+/* ATK -  Accessibility Toolkit
+ * Copyright 2001 Sun Microsystems Inc.
+ *
+ * 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 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, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include <glib-object.h>
+
+#include "atkobject.h"
+#include "atkstateset.h"
+
+#define ATK_STATE(state_enum)             ((AtkStateMask)(1 << ((guint64)(state_enum)%64)))
+
+struct _AtkRealStateSet
+{
+  GObject parent;
+
+  AtkState state;
+};
+
+typedef struct _AtkRealStateSet      AtkRealStateSet;
+
+static void            atk_state_set_class_init       (AtkStateSetClass  *klass);
+
+GType
+atk_state_set_get_type (void)
+{
+  static GType type = 0;
+
+  if (!type)
+    {
+      static const GTypeInfo typeInfo =
+      {
+        sizeof (AtkStateSetClass),
+        (GBaseInitFunc) NULL,
+        (GBaseFinalizeFunc) NULL,
+        (GClassInitFunc) atk_state_set_class_init,
+        (GClassFinalizeFunc) NULL,
+        NULL,
+        sizeof (AtkRealStateSet),
+        0,
+        (GInstanceInitFunc) NULL,
+      } ;
+      type = g_type_register_static (G_TYPE_OBJECT, "AtkStateSet", &typeInfo, 0) ;
+    }
+  return type;
+}
+
+static void
+atk_state_set_class_init (AtkStateSetClass *klass)
+{
+}
+
+/**
+ * atk_state_set_new
+ * return values: a new #AtkStateSet 
+ * 
+ * Creates a new empty state set.
+ **/
+AtkStateSet*
+atk_state_set_new (void)
+{
+  return (AtkStateSet*) g_object_new (ATK_TYPE_STATE_SET, NULL);
+}
+
+/**
+ * atk_state_set_is_empty
+ * @type: a #AtkStateType
+ * return values: %TRUE if @set has no states set
+ *
+ * Checks whether the state set is empty, i.e. has no states set.
+ **/
+gboolean
+atk_state_set_is_empty (AtkStateSet   *set)
+{
+  AtkRealStateSet *real_set;
+  g_return_val_if_fail (set != NULL, FALSE);
+  g_return_val_if_fail (ATK_IS_STATE_SET (set), FALSE);
+
+  real_set = (AtkRealStateSet *)set;
+
+  if (real_set->state)
+    return TRUE;
+  else
+    return FALSE;
+}
+
+/**
+ * atk_state_set_add_state
+ * @set: a #AtkStateSet
+ * @type: a #AtkStateType
+ * return values: %TRUE if  the state for @type is not already in @set.
+ *
+ * Add a new state for the specified type to the current state set if
+ * it is not already present
+ **/
+gboolean
+atk_state_set_add_state (AtkStateSet   *set,
+                         AtkStateType  type)
+{
+  AtkRealStateSet *real_set;
+  g_return_val_if_fail (set != NULL, FALSE);
+  g_return_val_if_fail (ATK_IS_STATE_SET (set), FALSE);
+
+  real_set = (AtkRealStateSet *)set;
+
+  if (real_set->state & ATK_STATE (type))
+    return FALSE;
+  else
+  {
+    real_set->state |= ATK_STATE (type);
+    return TRUE;
+  }
+}
+/**
+ * atk_state_set_add_states
+ * @set: a #AtkStateSet
+ * @types: a array of #AtkStateType
+ * @n_types: The number of elements in the array
+ *
+ * Add the states for the specified types to the current state set
+ **/
+void
+atk_state_set_add_states (AtkStateSet   *set,
+                          AtkStateType  *types,
+                          gint          n_types)
+{
+  AtkRealStateSet *real_set;
+  gint     i;
+  g_return_if_fail (set != NULL);
+  g_return_if_fail (ATK_IS_STATE_SET (set));
+
+  real_set = (AtkRealStateSet *)set;
+
+  for (i = 0; i < n_types; i++)
+  {
+    real_set->state |= ATK_STATE (types[i]);
+  }
+}
+
+/**
+ * atk_state_set_clear_states
+ * @set: a #AtkStateSet
+ *
+ * Removes all states from the state set.
+ **/
+void
+atk_state_set_clear_states (AtkStateSet   *set)
+{
+  AtkRealStateSet *real_set;
+  g_return_if_fail (set != NULL);
+  g_return_if_fail (ATK_IS_STATE_SET (set));
+
+  real_set = (AtkRealStateSet *)set;
+
+  real_set->state = 0;
+}
+
+/**
+ * atk_state_set_contains_state
+ * @set: a #AtkStateSet
+ * @type: a #AtkStateType
+ * return values: %TRUE if @type is the state type is in @set.
+ *
+ * Checks whether the state for the specified type is in the specified set.
+ **/
+gboolean
+atk_state_set_contains_state (AtkStateSet   *set,
+                              AtkStateType  type)
+{
+  AtkRealStateSet *real_set;
+  g_return_val_if_fail (set != NULL, FALSE);
+  g_return_val_if_fail (ATK_IS_STATE_SET (set), FALSE);
+
+  real_set = (AtkRealStateSet *)set;
+
+  if (real_set->state & ATK_STATE (type))
+    return TRUE;
+  else
+    return FALSE;
+}
+
+/**
+ * atk_state_set_contains_states
+ * @set: a #AtkStateSet
+ * @types: a array of #AtkStateType
+ * @n_types: The number of elements in the array
+ * return values: %TRUE if all the states for @type are in @set.
+ *
+ * Checks whether the states for all the specified types are in the 
+ * specified set.
+ **/
+gboolean
+atk_state_set_contains_states (AtkStateSet   *set,
+                               AtkStateType  *types,
+                               gint          n_types)
+{
+  AtkRealStateSet *real_set;
+  gint i;
+  g_return_val_if_fail (set != NULL, FALSE);
+  g_return_val_if_fail (ATK_IS_STATE_SET (set), FALSE);
+
+  real_set = (AtkRealStateSet *)set;
+
+  for (i = 0; i < n_types; i++)
+  {
+    if (!(real_set->state & ATK_STATE (types[i])))
+      return FALSE;
+  }
+  return TRUE;
+}
+
+/**
+ * atk_state_set_remove_state
+ * @set: a #AtkStateSet
+ * @type: a #AtkType
+ * return values: %TRUE if @type was the state type is in @set.
+ *
+ * Removes the state for the specified type from the state set.
+ **/
+gboolean
+atk_state_set_remove_state (AtkStateSet  *set,
+                            AtkStateType type)
+{
+  AtkRealStateSet *real_set;
+  g_return_val_if_fail (set != NULL, FALSE);
+  g_return_val_if_fail (ATK_IS_STATE_SET (set), FALSE);
+
+  real_set = (AtkRealStateSet *)set;
+
+  if (real_set->state & ATK_STATE (type))
+  {
+    real_set->state ^= ATK_STATE (type);
+    return TRUE;
+  }
+  else
+    return FALSE;
+}
+
+/**
+ * atk_state_set_and_sets
+ * @set: a #AtkStateSet
+ * @compare_set: another #AtkStateSet
+ * return values: a new #AtkStateSet which is the intersection of the two sets.
+ *
+ * Constructs the intersection of the two sets, returning NULL if the
+ * intersection is empty.
+ **/
+AtkStateSet*
+atk_state_set_and_sets (AtkStateSet  *set,
+                        AtkStateSet  *compare_set)
+{
+  AtkRealStateSet *real_set, *real_compare_set;
+  AtkStateSet *return_set = NULL;
+  AtkState state;
+
+  g_return_val_if_fail (set != NULL, FALSE);
+  g_return_val_if_fail (ATK_IS_STATE_SET (set), FALSE);
+  g_return_val_if_fail (compare_set != NULL, FALSE);
+  g_return_val_if_fail (ATK_IS_STATE_SET (compare_set), FALSE);
+
+  real_set = (AtkRealStateSet *)set;
+  real_compare_set = (AtkRealStateSet *)compare_set;
+
+  state = real_set->state & real_compare_set->state;
+  if (state)
+  {
+    return_set = atk_state_set_new();
+    ((AtkRealStateSet *) return_set)->state = state;
+  }
+  return return_set;
+}
+
+/**
+ * atk_state_set_or_sets
+ * @set: a #AtkStateSet
+ * @compare_set: another #AtkStateSet
+ * return values: a new #AtkStateSet which is the union of the two sets.
+ *
+ * Constructs the union of the two sets.
+ **/
+AtkStateSet*
+atk_state_set_or_sets (AtkStateSet  *set,
+                       AtkStateSet  *compare_set)
+{
+  AtkRealStateSet *real_set, *real_compare_set;
+  AtkStateSet *return_set = NULL;
+  AtkState state;
+
+  g_return_val_if_fail (set != NULL, FALSE);
+  g_return_val_if_fail (ATK_IS_STATE_SET (set), FALSE);
+  g_return_val_if_fail (compare_set != NULL, FALSE);
+  g_return_val_if_fail (ATK_IS_STATE_SET (compare_set), FALSE);
+
+  real_set = (AtkRealStateSet *)set;
+  real_compare_set = (AtkRealStateSet *)compare_set;
+
+  state = real_set->state | real_compare_set->state;
+
+  return_set = atk_state_set_new();
+  ((AtkRealStateSet *) return_set)->state = state;
+
+  return return_set;
+}
+
+/**
+ * atk_state_set_xor_sets
+ * @set: a #AtkStateSet
+ * @compare_set: another #AtkStateSet
+ * return values: a new #AtkStateSet which contains the states which are in exactly one of ht two sets.
+ *
+ * Constructs the xor of the two sets, returing NULL is empty. The set returned by this operation contains the4 sattes in exactly one of the two sets.
+ **/
+AtkStateSet*
+atk_state_set_xor_sets (AtkStateSet  *set,
+                        AtkStateSet  *compare_set)
+{
+  AtkRealStateSet *real_set, *real_compare_set;
+  AtkStateSet *return_set = NULL;
+  AtkState state, state1, state2;
+
+  g_return_val_if_fail (set != NULL, FALSE);
+  g_return_val_if_fail (ATK_IS_STATE_SET (set), FALSE);
+  g_return_val_if_fail (compare_set != NULL, FALSE);
+  g_return_val_if_fail (ATK_IS_STATE_SET (compare_set), FALSE);
+
+  real_set = (AtkRealStateSet *)set;
+  real_compare_set = (AtkRealStateSet *)compare_set;
+
+  state1 = real_set->state & (~real_compare_set->state);
+  state2 = (~real_set->state) & real_compare_set->state;
+  state = state1 | state2;
+
+  if (state)
+  {
+    return_set = atk_state_set_new();
+    ((AtkRealStateSet *) return_set)->state = state;
+  }
+  return return_set;
+}