/* GAIL - The GNOME Accessibility Implementation Library * Copyright 2001, 2002, 2003 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 "config.h" #include #ifdef GDK_WINDOWING_X11 #include #endif #include "gtktreeprivate.h" #include "gtkwidgetprivate.h" #include "gtktreeviewaccessible.h" #include "gtkrenderercellaccessible.h" #include "gtkbooleancellaccessible.h" #include "gtkimagecellaccessible.h" #include "gtkcontainercellaccessible.h" #include "gtktextcellaccessible.h" #include "gtkcellaccessibleparent.h" typedef struct _GtkTreeViewAccessibleCellInfo GtkTreeViewAccessibleCellInfo; struct _GtkTreeViewAccessibleCellInfo { GtkCellAccessible *cell; GtkRBTree *tree; GtkRBNode *node; GtkTreeViewColumn *cell_col_ref; GtkTreeViewAccessible *view; }; /* signal handling */ static void cursor_changed (GtkTreeView *tree_view, GtkTreeViewAccessible *accessible); static gboolean focus_in (GtkWidget *widget); static gboolean focus_out (GtkWidget *widget); /* Misc */ static int cell_info_get_index (GtkTreeView *tree_view, GtkTreeViewAccessibleCellInfo *info); static void update_cell_value (GtkRendererCellAccessible *renderer_cell, GtkTreeViewAccessible *accessible, gboolean emit_change_signal); static gboolean is_cell_showing (GtkTreeView *tree_view, GdkRectangle *cell_rect); static void cell_destroyed (gpointer data); static void cell_info_new (GtkTreeViewAccessible *accessible, GtkTreeModel *tree_model, GtkRBTree *tree, GtkRBNode *node, GtkTreeViewColumn *tv_col, GtkCellAccessible *cell); static GtkCellAccessible *find_cell (GtkTreeViewAccessible *accessible, gint index); static gint get_column_number (GtkTreeView *tree_view, GtkTreeViewColumn *column); static gint get_focus_index (GtkTreeView *tree_view); static gint get_index (GtkTreeView *tree_view, GtkTreePath *path, gint actual_column); static void count_rows (GtkTreeModel *model, GtkTreeIter *iter, GtkTreePath *end_path, gint *count, gint level, gint depth); static gboolean get_rbtree_column_from_index (GtkTreeView *tree_view, gint index, GtkRBTree **tree, GtkRBNode **node, GtkTreeViewColumn **column); static GtkTreeViewAccessibleCellInfo* find_cell_info (GtkTreeViewAccessible *view, GtkCellAccessible *cell); static AtkObject * get_header_from_column (GtkTreeViewColumn *tv_col); static void atk_table_interface_init (AtkTableIface *iface); static void atk_selection_interface_init (AtkSelectionIface *iface); static void atk_component_interface_init (AtkComponentIface *iface); static void gtk_cell_accessible_parent_interface_init (GtkCellAccessibleParentIface *iface); G_DEFINE_TYPE_WITH_CODE (GtkTreeViewAccessible, _gtk_tree_view_accessible, GTK_TYPE_CONTAINER_ACCESSIBLE, G_IMPLEMENT_INTERFACE (ATK_TYPE_TABLE, atk_table_interface_init) G_IMPLEMENT_INTERFACE (ATK_TYPE_SELECTION, atk_selection_interface_init) G_IMPLEMENT_INTERFACE (ATK_TYPE_COMPONENT, atk_component_interface_init) G_IMPLEMENT_INTERFACE (GTK_TYPE_CELL_ACCESSIBLE_PARENT, gtk_cell_accessible_parent_interface_init)) static GQuark gtk_tree_view_accessible_get_data_quark (void) { static GQuark quark = 0; if (G_UNLIKELY (quark == 0)) quark = g_quark_from_static_string ("gtk-tree-view-accessible-data"); return quark; } static void cell_info_free (GtkTreeViewAccessibleCellInfo *cell_info) { if (cell_info->cell) { g_object_steal_qdata (G_OBJECT (cell_info->cell), gtk_tree_view_accessible_get_data_quark ()); _gtk_cell_accessible_add_state (cell_info->cell, ATK_STATE_DEFUNCT, FALSE); } g_free (cell_info); } static GtkTreePath * cell_info_get_path (GtkTreeViewAccessibleCellInfo *cell_info) { return _gtk_tree_path_new_from_rbtree (cell_info->tree, cell_info->node); } static guint cell_info_hash (gconstpointer info) { const GtkTreeViewAccessibleCellInfo *cell_info = info; guint node, col; node = GPOINTER_TO_UINT (cell_info->node); col = GPOINTER_TO_UINT (cell_info->cell_col_ref); return ((node << sizeof (guint) / 2) | (node >> sizeof (guint) / 2)) ^ col; } static gboolean cell_info_equal (gconstpointer a, gconstpointer b) { const GtkTreeViewAccessibleCellInfo *cell_info_a = a; const GtkTreeViewAccessibleCellInfo *cell_info_b = b; return cell_info_a->node == cell_info_b->node && cell_info_a->cell_col_ref == cell_info_b->cell_col_ref; } static void gtk_tree_view_accessible_initialize (AtkObject *obj, gpointer data) { GtkTreeViewAccessible *accessible; GtkTreeView *tree_view; GtkTreeModel *tree_model; GtkWidget *widget; ATK_OBJECT_CLASS (_gtk_tree_view_accessible_parent_class)->initialize (obj, data); accessible = GTK_TREE_VIEW_ACCESSIBLE (obj); accessible->focus_cell = NULL; accessible->cell_infos = g_hash_table_new_full (cell_info_hash, cell_info_equal, NULL, (GDestroyNotify) cell_info_free); widget = GTK_WIDGET (data); tree_view = GTK_TREE_VIEW (widget); tree_model = gtk_tree_view_get_model (tree_view); g_signal_connect (tree_view, "cursor-changed", G_CALLBACK (cursor_changed), accessible); g_signal_connect (tree_view, "focus-in-event", G_CALLBACK (focus_in), NULL); g_signal_connect (tree_view, "focus-out-event", G_CALLBACK (focus_out), NULL); if (tree_model) { if (gtk_tree_model_get_flags (tree_model) & GTK_TREE_MODEL_LIST_ONLY) obj->role = ATK_ROLE_TABLE; else obj->role = ATK_ROLE_TREE_TABLE; } } static void gtk_tree_view_accessible_finalize (GObject *object) { GtkTreeViewAccessible *accessible = GTK_TREE_VIEW_ACCESSIBLE (object); if (accessible->cell_infos) g_hash_table_destroy (accessible->cell_infos); G_OBJECT_CLASS (_gtk_tree_view_accessible_parent_class)->finalize (object); } static void gtk_tree_view_accessible_notify_gtk (GObject *obj, GParamSpec *pspec) { GtkWidget *widget; GtkTreeView *tree_view; GtkTreeViewAccessible *accessible; widget = GTK_WIDGET (obj); accessible = GTK_TREE_VIEW_ACCESSIBLE (gtk_widget_get_accessible (widget)); tree_view = GTK_TREE_VIEW (widget); if (g_strcmp0 (pspec->name, "model") == 0) { GtkTreeModel *tree_model; AtkRole role; tree_model = gtk_tree_view_get_model (tree_view); g_hash_table_remove_all (accessible->cell_infos); if (tree_model) { if (gtk_tree_model_get_flags (tree_model) & GTK_TREE_MODEL_LIST_ONLY) role = ATK_ROLE_TABLE; else role = ATK_ROLE_TREE_TABLE; } else { role = ATK_ROLE_UNKNOWN; } atk_object_set_role (ATK_OBJECT (accessible), role); g_object_freeze_notify (G_OBJECT (accessible)); g_signal_emit_by_name (accessible, "model-changed"); g_signal_emit_by_name (accessible, "visible-data-changed"); g_object_thaw_notify (G_OBJECT (accessible)); } else GTK_WIDGET_ACCESSIBLE_CLASS (_gtk_tree_view_accessible_parent_class)->notify_gtk (obj, pspec); } static void gtk_tree_view_accessible_destroyed (GtkWidget *widget, GtkAccessible *gtk_accessible) { GtkTreeViewAccessible *accessible; if (!GTK_IS_TREE_VIEW (widget)) return; accessible = GTK_TREE_VIEW_ACCESSIBLE (gtk_accessible); if (accessible->focus_cell) { g_object_unref (accessible->focus_cell); accessible->focus_cell = NULL; } } static void gtk_tree_view_accessible_connect_widget_destroyed (GtkAccessible *accessible) { GtkWidget *widget; widget = gtk_accessible_get_widget (accessible); if (widget) g_signal_connect_after (widget, "destroy", G_CALLBACK (gtk_tree_view_accessible_destroyed), accessible); GTK_ACCESSIBLE_CLASS (_gtk_tree_view_accessible_parent_class)->connect_widget_destroyed (accessible); } static gint get_n_rows (GtkTreeView *tree_view) { GtkRBTree *tree; tree = _gtk_tree_view_get_rbtree (tree_view); if (tree == NULL) return 0; return tree->root->total_count; } static gint get_n_columns (GtkTreeView *tree_view) { guint i, visible_columns; visible_columns = 0; for (i = 0; i < gtk_tree_view_get_n_columns (tree_view); i++) { GtkTreeViewColumn *column = gtk_tree_view_get_column (tree_view, i); if (gtk_tree_view_column_get_visible (column)) visible_columns++; } return visible_columns; } static gint gtk_tree_view_accessible_get_n_children (AtkObject *obj) { GtkWidget *widget; GtkTreeView *tree_view; widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj)); if (widget == NULL) return 0; tree_view = GTK_TREE_VIEW (widget); return (get_n_rows (tree_view) + 1) * get_n_columns (tree_view); } static GtkTreeViewColumn * get_visible_column (GtkTreeView *tree_view, guint id) { guint i; for (i = 0; i < gtk_tree_view_get_n_columns (tree_view); i++) { GtkTreeViewColumn *column = gtk_tree_view_get_column (tree_view, i); if (!gtk_tree_view_column_get_visible (column)) continue; if (id == 0) return column; id--; } g_return_val_if_reached (NULL); } static AtkObject * gtk_tree_view_accessible_ref_child (AtkObject *obj, gint i) { GtkWidget *widget; GtkTreeViewAccessible *accessible; GtkCellAccessible *cell; GtkTreeView *tree_view; GtkTreeModel *tree_model; GtkCellRenderer *renderer; GtkTreeIter iter; GtkTreeViewColumn *tv_col; GtkTreePath *path; GtkRBTree *tree; GtkRBNode *node; AtkObject *child; AtkObject *parent; GtkTreeViewColumn *expander_tv; GList *renderer_list; GList *l; GtkContainerCellAccessible *container = NULL; GtkRendererCellAccessible *renderer_cell; gboolean is_expander, is_expanded, retval; gint focus_index; widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj)); if (widget == NULL) return NULL; if (i >= gtk_tree_view_accessible_get_n_children (obj)) return NULL; accessible = GTK_TREE_VIEW_ACCESSIBLE (obj); tree_view = GTK_TREE_VIEW (widget); if (i < get_n_columns (tree_view)) { tv_col = get_visible_column (tree_view, i); child = get_header_from_column (tv_col); if (child) g_object_ref (child); return child; } /* Check whether the child is cached */ cell = find_cell (accessible, i); if (cell) { g_object_ref (cell); return ATK_OBJECT (cell); } if (accessible->focus_cell == NULL) focus_index = get_focus_index (tree_view); else focus_index = -1; /* Find the RBTree and GtkTreeViewColumn for the index */ if (!get_rbtree_column_from_index (tree_view, i, &tree, &node, &tv_col)) return NULL; path = _gtk_tree_path_new_from_rbtree (tree, node); tree_model = gtk_tree_view_get_model (tree_view); retval = gtk_tree_model_get_iter (tree_model, &iter, path); if (!retval) return NULL; expander_tv = gtk_tree_view_get_expander_column (tree_view); is_expander = FALSE; is_expanded = FALSE; if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT)) { if (expander_tv == tv_col) { is_expander = TRUE; is_expanded = node->children != NULL; } } gtk_tree_view_column_cell_set_cell_data (tv_col, tree_model, &iter, is_expander, is_expanded); renderer_list = gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (tv_col)); /* If there is not exactly one renderer in the list, * make a container */ if (renderer_list == NULL || renderer_list->next) { GtkCellAccessible *container_cell; container = _gtk_container_cell_accessible_new (); container_cell = GTK_CELL_ACCESSIBLE (container); _gtk_cell_accessible_initialise (container_cell, widget, ATK_OBJECT (accessible)); /* The GtkTreeViewAccessibleCellInfo structure for the container will * be before the ones for the cells so that the first one we find for * a position will be for the container */ cell_info_new (accessible, tree_model, tree, node, tv_col, container_cell); parent = ATK_OBJECT (container); } else parent = ATK_OBJECT (accessible); child = NULL; for (l = renderer_list; l; l = l->next) { renderer = GTK_CELL_RENDERER (l->data); child = _gtk_renderer_cell_accessible_new (renderer); cell = GTK_CELL_ACCESSIBLE (child); renderer_cell = GTK_RENDERER_CELL_ACCESSIBLE (child); /* Create the GtkTreeViewAccessibleCellInfo for this cell */ if (parent == ATK_OBJECT (accessible)) cell_info_new (accessible, tree_model, tree, node, tv_col, cell); _gtk_cell_accessible_initialise (cell, widget, parent); if (container) _gtk_container_cell_accessible_add_child (container, cell); update_cell_value (renderer_cell, accessible, FALSE); _gtk_cell_accessible_add_state (cell, ATK_STATE_FOCUSABLE, FALSE); if (focus_index == i) { accessible->focus_cell = g_object_ref (cell); _gtk_cell_accessible_add_state (cell, ATK_STATE_FOCUSED, FALSE); g_signal_emit_by_name (accessible, "active-descendant-changed", cell); } } g_list_free (renderer_list); if (container) child = ATK_OBJECT (container); if (expander_tv == tv_col) { AtkRelationSet *relation_set; AtkObject *accessible_array[1]; AtkRelation* relation; AtkObject *parent_node; relation_set = atk_object_ref_relation_set (ATK_OBJECT (child)); gtk_tree_path_up (path); if (gtk_tree_path_get_depth (path) == 0) parent_node = obj; else { gint parent_index; parent_index = get_index (tree_view, path, i % get_n_columns (tree_view)); parent_node = atk_object_ref_accessible_child (obj, parent_index); } accessible_array[0] = parent_node; relation = atk_relation_new (accessible_array, 1, ATK_RELATION_NODE_CHILD_OF); atk_relation_set_add (relation_set, relation); atk_object_add_relationship (parent_node, ATK_RELATION_NODE_PARENT_OF, child); g_object_unref (relation); g_object_unref (relation_set); } gtk_tree_path_free (path); /* We do not increase the reference count here; when g_object_unref() * is called for the cell then cell_destroyed() is called and this * removes the cell from the cache. */ return child; } static AtkStateSet* gtk_tree_view_accessible_ref_state_set (AtkObject *obj) { AtkStateSet *state_set; GtkWidget *widget; state_set = ATK_OBJECT_CLASS (_gtk_tree_view_accessible_parent_class)->ref_state_set (obj); widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj)); if (widget != NULL) atk_state_set_add_state (state_set, ATK_STATE_MANAGES_DESCENDANTS); return state_set; } static void _gtk_tree_view_accessible_class_init (GtkTreeViewAccessibleClass *klass) { AtkObjectClass *class = ATK_OBJECT_CLASS (klass); GObjectClass *gobject_class = G_OBJECT_CLASS (klass); GtkAccessibleClass *accessible_class = (GtkAccessibleClass*)klass; GtkWidgetAccessibleClass *widget_class = (GtkWidgetAccessibleClass*)klass; GtkContainerAccessibleClass *container_class = (GtkContainerAccessibleClass*)klass; class->get_n_children = gtk_tree_view_accessible_get_n_children; class->ref_child = gtk_tree_view_accessible_ref_child; class->ref_state_set = gtk_tree_view_accessible_ref_state_set; class->initialize = gtk_tree_view_accessible_initialize; widget_class->notify_gtk = gtk_tree_view_accessible_notify_gtk; accessible_class->connect_widget_destroyed = gtk_tree_view_accessible_connect_widget_destroyed; /* The children of a GtkTreeView are the buttons at the top of the columns * we do not represent these as children so we do not want to report * children added or deleted when these changed. */ container_class->add_gtk = NULL; container_class->remove_gtk = NULL; gobject_class->finalize = gtk_tree_view_accessible_finalize; } static void _gtk_tree_view_accessible_init (GtkTreeViewAccessible *view) { } gint get_focus_index (GtkTreeView *tree_view) { GtkTreePath *focus_path; GtkTreeViewColumn *focus_column; gint index; gtk_tree_view_get_cursor (tree_view, &focus_path, &focus_column); if (focus_path && focus_column) index = get_index (tree_view, focus_path, get_column_number (tree_view, focus_column)); else index = -1; if (focus_path) gtk_tree_path_free (focus_path); return index; } /* This function returns a reference to the accessible object * for the cell in the treeview which has focus, if any */ static AtkObject * gtk_tree_view_accessible_ref_focus_cell (GtkTreeView *tree_view) { AtkObject *focus_cell = NULL; AtkObject *atk_obj; gint focus_index; focus_index = get_focus_index (tree_view); if (focus_index >= 0) { atk_obj = gtk_widget_get_accessible (GTK_WIDGET (tree_view)); focus_cell = atk_object_ref_accessible_child (atk_obj, focus_index); } return focus_cell; } /* atkcomponent.h */ static AtkObject * gtk_tree_view_accessible_ref_accessible_at_point (AtkComponent *component, gint x, gint y, AtkCoordType coord_type) { GtkWidget *widget; GtkTreeView *tree_view; GtkTreePath *path; GtkTreeViewColumn *tv_column; gint x_pos, y_pos; gint bx, by; gboolean ret_val; widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (component)); if (widget == NULL) return NULL; tree_view = GTK_TREE_VIEW (widget); atk_component_get_extents (component, &x_pos, &y_pos, NULL, NULL, coord_type); gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, x, y, &bx, &by); ret_val = gtk_tree_view_get_path_at_pos (tree_view, bx - x_pos, by - y_pos, &path, &tv_column, NULL, NULL); if (ret_val) { gint index, column; column = get_column_number (tree_view, tv_column); index = get_index (tree_view, path, column); gtk_tree_path_free (path); return gtk_tree_view_accessible_ref_child (ATK_OBJECT (component), index); } return NULL; } static void atk_component_interface_init (AtkComponentIface *iface) { iface->ref_accessible_at_point = gtk_tree_view_accessible_ref_accessible_at_point; } /* atktable.h */ static gint gtk_tree_view_accessible_get_index_at (AtkTable *table, gint row, gint column) { GtkWidget *widget; gint n_cols, n_rows; widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (table)); if (widget == NULL) return -1; n_cols = atk_table_get_n_columns (table); n_rows = atk_table_get_n_rows (table); if (row >= n_rows || column >= n_cols) return -1; return (row + 1) * n_cols + column; } static gint gtk_tree_view_accessible_get_column_at_index (AtkTable *table, gint index) { GtkWidget *widget; gint n_columns; widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (table)); if (widget == NULL) return -1; if (index >= gtk_tree_view_accessible_get_n_children (ATK_OBJECT (table))) return -1; n_columns = get_n_columns (GTK_TREE_VIEW (widget)); /* checked by the n_children() check above */ g_assert (n_columns > 0); return index % n_columns; } static gint gtk_tree_view_accessible_get_row_at_index (AtkTable *table, gint index) { GtkWidget *widget; GtkTreeView *tree_view; widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (table)); if (widget == NULL) return -1; tree_view = GTK_TREE_VIEW (widget); index /= get_n_columns (tree_view); index--; if (index >= get_n_rows (tree_view)) return -1; return index; } static AtkObject * gtk_tree_view_accessible_table_ref_at (AtkTable *table, gint row, gint column) { gint index; index = gtk_tree_view_accessible_get_index_at (table, row, column); if (index == -1) return NULL; return gtk_tree_view_accessible_ref_child (ATK_OBJECT (table), index); } static gint gtk_tree_view_accessible_get_n_rows (AtkTable *table) { GtkWidget *widget; widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (table)); if (widget == NULL) return 0; return get_n_rows (GTK_TREE_VIEW (widget)); } static gint gtk_tree_view_accessible_get_n_columns (AtkTable *table) { GtkWidget *widget; widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (table)); if (widget == NULL) return 0; return get_n_columns (GTK_TREE_VIEW (widget)); } static gboolean gtk_tree_view_accessible_is_row_selected (AtkTable *table, gint row) { GtkWidget *widget; GtkRBTree *tree; GtkRBNode *node; if (row < 0) return FALSE; widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (table)); if (widget == NULL) return FALSE; if (!_gtk_rbtree_find_index (_gtk_tree_view_get_rbtree (GTK_TREE_VIEW (widget)), row, &tree, &node)) return FALSE; return GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED); } static gboolean gtk_tree_view_accessible_is_selected (AtkTable *table, gint row, gint column) { return gtk_tree_view_accessible_is_row_selected (table, row); } typedef struct { GArray *array; GtkTreeView *treeview; } SelectedRowsData; static void get_selected_rows (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer datap) { SelectedRowsData *data = datap; GtkRBTree *tree; GtkRBNode *node; int id; if (_gtk_tree_view_find_node (data->treeview, path, &tree, &node)) { g_assert_not_reached (); } id = _gtk_rbtree_node_get_index (tree, node); g_array_append_val (data->array, id); } static gint gtk_tree_view_accessible_get_selected_rows (AtkTable *table, gint **rows_selected) { SelectedRowsData data; GtkWidget *widget; gint n_rows; widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (table)); if (widget == NULL) return 0; data.treeview = GTK_TREE_VIEW (widget); data.array = g_array_new (FALSE, FALSE, sizeof (gint)); gtk_tree_selection_selected_foreach (gtk_tree_view_get_selection (data.treeview), get_selected_rows, &data); n_rows = data.array->len; if (rows_selected) *rows_selected = (gint *) g_array_free (data.array, FALSE); else g_array_free (data.array, TRUE); return n_rows; } static gboolean gtk_tree_view_accessible_add_row_selection (AtkTable *table, gint row) { GtkTreeView *treeview; GtkTreePath *path; GtkRBTree *tree; GtkRBNode *node; if (row < 0) return FALSE; treeview = GTK_TREE_VIEW (gtk_accessible_get_widget (GTK_ACCESSIBLE (table))); if (treeview == NULL) return FALSE; if (!_gtk_rbtree_find_index (_gtk_tree_view_get_rbtree (treeview), row, &tree, &node)) return FALSE; if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED)) return FALSE; path = _gtk_tree_path_new_from_rbtree (tree, node); gtk_tree_selection_select_path (gtk_tree_view_get_selection (treeview), path); gtk_tree_path_free (path); return TRUE; } static gboolean gtk_tree_view_accessible_remove_row_selection (AtkTable *table, gint row) { GtkTreeView *treeview; GtkTreePath *path; GtkRBTree *tree; GtkRBNode *node; if (row < 0) return FALSE; treeview = GTK_TREE_VIEW (gtk_accessible_get_widget (GTK_ACCESSIBLE (table))); if (treeview == NULL) return FALSE; if (!_gtk_rbtree_find_index (_gtk_tree_view_get_rbtree (treeview), row, &tree, &node)) return FALSE; if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED)) return FALSE; path = _gtk_tree_path_new_from_rbtree (tree, node); gtk_tree_selection_unselect_path (gtk_tree_view_get_selection (treeview), path); gtk_tree_path_free (path); return TRUE; } static AtkObject * gtk_tree_view_accessible_get_column_header (AtkTable *table, gint in_col) { GtkWidget *widget; GtkTreeView *tree_view; GtkTreeViewColumn *tv_col; widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (table)); if (widget == NULL) return NULL; tree_view = GTK_TREE_VIEW (widget); if (in_col < 0 || in_col >= get_n_columns (tree_view)) return NULL; tv_col = get_visible_column (tree_view, in_col); return get_header_from_column (tv_col); } static const gchar * gtk_tree_view_accessible_get_column_description (AtkTable *table, gint in_col) { GtkWidget *widget; GtkTreeView *tree_view; GtkTreeViewColumn *tv_col; widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (table)); if (widget == NULL) return NULL; tree_view = GTK_TREE_VIEW (widget); if (in_col < 0 || in_col >= get_n_columns (tree_view)) return NULL; tv_col = get_visible_column (tree_view, in_col); return gtk_tree_view_column_get_title (tv_col); } static void atk_table_interface_init (AtkTableIface *iface) { iface->ref_at = gtk_tree_view_accessible_table_ref_at; iface->get_n_rows = gtk_tree_view_accessible_get_n_rows; iface->get_n_columns = gtk_tree_view_accessible_get_n_columns; iface->get_index_at = gtk_tree_view_accessible_get_index_at; iface->get_column_at_index = gtk_tree_view_accessible_get_column_at_index; iface->get_row_at_index = gtk_tree_view_accessible_get_row_at_index; iface->is_row_selected = gtk_tree_view_accessible_is_row_selected; iface->is_selected = gtk_tree_view_accessible_is_selected; iface->get_selected_rows = gtk_tree_view_accessible_get_selected_rows; iface->add_row_selection = gtk_tree_view_accessible_add_row_selection; iface->remove_row_selection = gtk_tree_view_accessible_remove_row_selection; iface->get_column_extent_at = NULL; iface->get_row_extent_at = NULL; iface->get_column_header = gtk_tree_view_accessible_get_column_header; iface->get_column_description = gtk_tree_view_accessible_get_column_description; } /* atkselection.h */ static gboolean gtk_tree_view_accessible_add_selection (AtkSelection *selection, gint i) { AtkTable *table; gint n_columns; gint row; table = ATK_TABLE (selection); n_columns = gtk_tree_view_accessible_get_n_columns (table); if (n_columns != 1) return FALSE; row = gtk_tree_view_accessible_get_row_at_index (table, i); return gtk_tree_view_accessible_add_row_selection (table, row); } static gboolean gtk_tree_view_accessible_clear_selection (AtkSelection *selection) { GtkWidget *widget; GtkTreeView *tree_view; GtkTreeSelection *tree_selection; widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (selection)); if (widget == NULL) return FALSE; tree_view = GTK_TREE_VIEW (widget); tree_selection = gtk_tree_view_get_selection (tree_view); gtk_tree_selection_unselect_all (tree_selection); return TRUE; } static AtkObject * gtk_tree_view_accessible_ref_selection (AtkSelection *selection, gint i) { AtkTable *table; gint row; gint n_selected; gint n_columns; gint *selected; table = ATK_TABLE (selection); n_columns = gtk_tree_view_accessible_get_n_columns (table); n_selected = gtk_tree_view_accessible_get_selected_rows (table, &selected); if (i >= n_columns * n_selected) return NULL; row = selected[i / n_columns]; g_free (selected); return gtk_tree_view_accessible_table_ref_at (table, row, i % n_columns); } static gint gtk_tree_view_accessible_get_selection_count (AtkSelection *selection) { AtkTable *table; gint n_selected; table = ATK_TABLE (selection); n_selected = gtk_tree_view_accessible_get_selected_rows (table, NULL); if (n_selected > 0) n_selected *= gtk_tree_view_accessible_get_n_columns (table); return n_selected; } static gboolean gtk_tree_view_accessible_is_child_selected (AtkSelection *selection, gint i) { GtkWidget *widget; gint row; widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (selection)); if (widget == NULL) return FALSE; row = atk_table_get_row_at_index (ATK_TABLE (selection), i); return gtk_tree_view_accessible_is_row_selected (ATK_TABLE (selection), row); } static void atk_selection_interface_init (AtkSelectionIface *iface) { iface->add_selection = gtk_tree_view_accessible_add_selection; iface->clear_selection = gtk_tree_view_accessible_clear_selection; iface->ref_selection = gtk_tree_view_accessible_ref_selection; iface->get_selection_count = gtk_tree_view_accessible_get_selection_count; iface->is_child_selected = gtk_tree_view_accessible_is_child_selected; } #define EXTRA_EXPANDER_PADDING 4 static void gtk_tree_view_accessible_get_cell_area (GtkCellAccessibleParent *parent, GtkCellAccessible *cell, GdkRectangle *cell_rect) { GtkWidget *widget; GtkTreeView *tree_view; GtkTreeViewColumn *tv_col; GtkTreePath *path; AtkObject *parent_cell; GtkTreeViewAccessibleCellInfo *cell_info; GtkCellAccessible *top_cell; widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (parent)); if (widget == NULL) return; tree_view = GTK_TREE_VIEW (widget); parent_cell = atk_object_get_parent (ATK_OBJECT (cell)); if (parent_cell != ATK_OBJECT (parent)) top_cell = GTK_CELL_ACCESSIBLE (parent_cell); else top_cell = cell; cell_info = find_cell_info (GTK_TREE_VIEW_ACCESSIBLE (parent), top_cell); if (!cell_info) return; path = cell_info_get_path (cell_info); tv_col = cell_info->cell_col_ref; if (path) { GtkTreeViewColumn *expander_column; gint focus_line_width; gtk_tree_view_get_cell_area (tree_view, path, tv_col, cell_rect); expander_column = gtk_tree_view_get_expander_column (tree_view); if (expander_column == tv_col) { gint expander_size; gtk_widget_style_get (widget, "expander-size", &expander_size, NULL); cell_rect->x += expander_size + EXTRA_EXPANDER_PADDING; cell_rect->width -= expander_size + EXTRA_EXPANDER_PADDING; } gtk_widget_style_get (widget, "focus-line-width", &focus_line_width, NULL); cell_rect->x += focus_line_width; cell_rect->width -= 2 * focus_line_width; gtk_tree_path_free (path); /* A column has more than one renderer so we find the position * and width of each */ if (top_cell != cell) { gint cell_index; gboolean found; gint cell_start; gint cell_width; GList *renderers; GtkCellRenderer *renderer; cell_index = atk_object_get_index_in_parent (ATK_OBJECT (cell)); renderers = gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (tv_col)); renderer = g_list_nth_data (renderers, cell_index); found = gtk_tree_view_column_cell_get_position (tv_col, renderer, &cell_start, &cell_width); if (found) { cell_rect->x += cell_start; cell_rect->width = cell_width; } g_list_free (renderers); } } } static void gtk_tree_view_accessible_get_cell_extents (GtkCellAccessibleParent *parent, GtkCellAccessible *cell, gint *x, gint *y, gint *width, gint *height, AtkCoordType coord_type) { GtkWidget *widget; GtkTreeView *tree_view; GdkWindow *bin_window; GdkRectangle cell_rect; gint w_x, w_y; widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (parent)); if (widget == NULL) return; tree_view = GTK_TREE_VIEW (widget); gtk_tree_view_accessible_get_cell_area (parent, cell, &cell_rect); bin_window = gtk_tree_view_get_bin_window (tree_view); gdk_window_get_origin (bin_window, &w_x, &w_y); if (coord_type == ATK_XY_WINDOW) { GdkWindow *window; gint x_toplevel, y_toplevel; window = gdk_window_get_toplevel (bin_window); gdk_window_get_origin (window, &x_toplevel, &y_toplevel); w_x -= x_toplevel; w_y -= y_toplevel; } *width = cell_rect.width; *height = cell_rect.height; if (is_cell_showing (tree_view, &cell_rect)) { *x = cell_rect.x + w_x; *y = cell_rect.y + w_y; } else { *x = G_MININT; *y = G_MININT; } } static gboolean gtk_tree_view_accessible_grab_cell_focus (GtkCellAccessibleParent *parent, GtkCellAccessible *cell) { GtkWidget *widget; GtkTreeView *tree_view; GtkTreeViewColumn *tv_col; GtkTreePath *path; AtkObject *parent_cell; AtkObject *cell_object; GtkTreeViewAccessibleCellInfo *cell_info; GtkCellRenderer *renderer = NULL; GtkWidget *toplevel; gint index; widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (parent)); if (widget == NULL) return FALSE; tree_view = GTK_TREE_VIEW (widget); cell_info = find_cell_info (GTK_TREE_VIEW_ACCESSIBLE (parent), cell); if (!cell_info) return FALSE; cell_object = ATK_OBJECT (cell); parent_cell = atk_object_get_parent (cell_object); tv_col = cell_info->cell_col_ref; if (parent_cell != ATK_OBJECT (parent)) { /* GtkCellAccessible is in a GtkContainerCellAccessible. * The GtkTreeViewColumn has multiple renderers; * find the corresponding one. */ GList *renderers; renderers = gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (tv_col)); index = atk_object_get_index_in_parent (cell_object); renderer = g_list_nth_data (renderers, index); g_list_free (renderers); } path = cell_info_get_path (cell_info); if (path) { if (renderer) gtk_tree_view_set_cursor_on_cell (tree_view, path, tv_col, renderer, FALSE); else gtk_tree_view_set_cursor (tree_view, path, tv_col, FALSE); gtk_tree_path_free (path); gtk_widget_grab_focus (widget); toplevel = gtk_widget_get_toplevel (widget); if (gtk_widget_is_toplevel (toplevel)) { #ifdef GDK_WINDOWING_X11 gtk_window_present_with_time (GTK_WINDOW (toplevel), gdk_x11_get_server_time (gtk_widget_get_window (widget))); #else gtk_window_present (GTK_WINDOW (toplevel)); #endif } return TRUE; } else return FALSE; } static int gtk_tree_view_accessible_get_child_index (GtkCellAccessibleParent *parent, GtkCellAccessible *cell) { GtkTreeViewAccessibleCellInfo *cell_info; GtkTreeView *tree_view; cell_info = find_cell_info (GTK_TREE_VIEW_ACCESSIBLE (parent), cell); if (!cell_info) return -1; tree_view = GTK_TREE_VIEW (gtk_accessible_get_widget (GTK_ACCESSIBLE (parent))); return cell_info_get_index (tree_view, cell_info); } static GtkCellRendererState gtk_tree_view_accessible_get_renderer_state (GtkCellAccessibleParent *parent, GtkCellAccessible *cell) { GtkTreeViewAccessibleCellInfo *cell_info; GtkTreeView *treeview; GtkCellRendererState flags; cell_info = find_cell_info (GTK_TREE_VIEW_ACCESSIBLE (parent), cell); if (!cell_info) return 0; flags = 0; if (GTK_RBNODE_FLAG_SET (cell_info->node, GTK_RBNODE_IS_SELECTED)) flags |= GTK_CELL_RENDERER_SELECTED; if (GTK_RBNODE_FLAG_SET (cell_info->node, GTK_RBNODE_IS_PRELIT)) flags |= GTK_CELL_RENDERER_PRELIT; if (gtk_tree_view_column_get_sort_indicator (cell_info->cell_col_ref)) flags |= GTK_CELL_RENDERER_SORTED; treeview = GTK_TREE_VIEW (gtk_accessible_get_widget (GTK_ACCESSIBLE (parent))); if (cell_info->cell_col_ref == gtk_tree_view_get_expander_column (treeview)) { if (GTK_RBNODE_FLAG_SET (cell_info->node, GTK_RBNODE_IS_PARENT)) flags |= GTK_CELL_RENDERER_EXPANDABLE; if (cell_info->node->children) flags |= GTK_CELL_RENDERER_EXPANDED; } if (gtk_widget_has_focus (GTK_WIDGET (treeview))) { GtkTreeViewColumn *column; GtkTreePath *path; GtkRBTree *tree; GtkRBNode *node; gtk_tree_view_get_cursor (treeview, &path, &column); if (path) { _gtk_tree_view_find_node (treeview, path, &tree, &node); gtk_tree_path_free (path); } else tree = NULL; if (cell_info->cell_col_ref == column && cell_info->tree == tree && cell_info->node == node) flags |= GTK_CELL_RENDERER_FOCUSED; } return flags; } static void gtk_tree_view_accessible_set_cell_data (GtkCellAccessibleParent *parent, GtkCellAccessible *cell) { GtkTreeViewAccessibleCellInfo *cell_info; GtkTreeView *treeview; gboolean is_expander, is_expanded; GtkTreeModel *model; GtkTreeIter iter; GtkTreePath *path; cell_info = find_cell_info (GTK_TREE_VIEW_ACCESSIBLE (parent), cell); if (!cell_info) return; treeview = GTK_TREE_VIEW (gtk_accessible_get_widget (GTK_ACCESSIBLE (parent))); model = gtk_tree_view_get_model (treeview); if (GTK_RBNODE_FLAG_SET (cell_info->node, GTK_RBNODE_IS_PARENT) && cell_info->cell_col_ref == gtk_tree_view_get_expander_column (treeview)) { is_expander = TRUE; is_expanded = cell_info->node->children != NULL; } else { is_expander = FALSE; is_expanded = FALSE; } path = cell_info_get_path (cell_info); if (path == NULL || !gtk_tree_model_get_iter (model, &iter, path)) { /* We only track valid cells, this should never happen */ g_return_if_reached (); } gtk_tree_view_column_cell_set_cell_data (cell_info->cell_col_ref, model, &iter, is_expander, is_expanded); } static void gtk_tree_view_accessible_expand_collapse (GtkCellAccessibleParent *parent, GtkCellAccessible *cell) { GtkTreeViewAccessibleCellInfo *cell_info; GtkTreeView *treeview; GtkTreePath *path; treeview = GTK_TREE_VIEW (gtk_accessible_get_widget (GTK_ACCESSIBLE (parent))); cell_info = find_cell_info (GTK_TREE_VIEW_ACCESSIBLE (parent), cell); if (!cell_info || cell_info->cell_col_ref != gtk_tree_view_get_expander_column (treeview)) return; path = cell_info_get_path (cell_info); if (cell_info->node->children) gtk_tree_view_collapse_row (treeview, path); else gtk_tree_view_expand_row (treeview, path, FALSE); gtk_tree_path_free (path); } static void gtk_tree_view_accessible_activate (GtkCellAccessibleParent *parent, GtkCellAccessible *cell) { GtkTreeViewAccessibleCellInfo *cell_info; GtkTreeView *treeview; GtkTreePath *path; treeview = GTK_TREE_VIEW (gtk_accessible_get_widget (GTK_ACCESSIBLE (parent))); cell_info = find_cell_info (GTK_TREE_VIEW_ACCESSIBLE (parent), cell); if (!cell_info) return; path = cell_info_get_path (cell_info); gtk_tree_view_row_activated (treeview, path, cell_info->cell_col_ref); gtk_tree_path_free (path); } static void gtk_tree_view_accessible_edit (GtkCellAccessibleParent *parent, GtkCellAccessible *cell) { GtkTreeView *treeview; if (!gtk_tree_view_accessible_grab_cell_focus (parent, cell)) return; treeview = GTK_TREE_VIEW (gtk_accessible_get_widget (GTK_ACCESSIBLE (parent))); g_signal_emit_by_name (treeview, "real-select-cursor-row", TRUE); } static void gtk_cell_accessible_parent_interface_init (GtkCellAccessibleParentIface *iface) { iface->get_cell_extents = gtk_tree_view_accessible_get_cell_extents; iface->get_cell_area = gtk_tree_view_accessible_get_cell_area; iface->grab_focus = gtk_tree_view_accessible_grab_cell_focus; iface->get_child_index = gtk_tree_view_accessible_get_child_index; iface->get_renderer_state = gtk_tree_view_accessible_get_renderer_state; iface->set_cell_data = gtk_tree_view_accessible_set_cell_data; iface->expand_collapse = gtk_tree_view_accessible_expand_collapse; iface->activate = gtk_tree_view_accessible_activate; iface->edit = gtk_tree_view_accessible_edit; } /* signal handling */ static void cursor_changed (GtkTreeView *tree_view, GtkTreeViewAccessible *accessible) { AtkObject *cell; cell = gtk_tree_view_accessible_ref_focus_cell (tree_view); if (cell) { if (cell != accessible->focus_cell) { if (accessible->focus_cell) { _gtk_cell_accessible_remove_state (GTK_CELL_ACCESSIBLE (accessible->focus_cell), ATK_STATE_ACTIVE, FALSE); _gtk_cell_accessible_remove_state (GTK_CELL_ACCESSIBLE (accessible->focus_cell), ATK_STATE_FOCUSED, FALSE); g_object_unref (accessible->focus_cell); accessible->focus_cell = cell; } if (gtk_widget_has_focus (GTK_WIDGET (tree_view))) { _gtk_cell_accessible_add_state (GTK_CELL_ACCESSIBLE (cell), ATK_STATE_ACTIVE, FALSE); _gtk_cell_accessible_add_state (GTK_CELL_ACCESSIBLE (cell), ATK_STATE_FOCUSED, FALSE); } g_signal_emit_by_name (accessible, "active-descendant-changed", cell); } else g_object_unref (cell); } } static gboolean focus_in (GtkWidget *widget) { GtkTreeView *tree_view; GtkTreeViewAccessible *accessible; AtkStateSet *state_set; AtkObject *cell; tree_view = GTK_TREE_VIEW (widget); accessible = GTK_TREE_VIEW_ACCESSIBLE (gtk_widget_get_accessible (widget)); if (accessible->focus_cell == NULL) { cell = gtk_tree_view_accessible_ref_focus_cell (tree_view); if (cell) { state_set = atk_object_ref_state_set (cell); if (state_set) { if (!atk_state_set_contains_state (state_set, ATK_STATE_FOCUSED)) { _gtk_cell_accessible_add_state (GTK_CELL_ACCESSIBLE (cell), ATK_STATE_ACTIVE, FALSE); accessible->focus_cell = cell; _gtk_cell_accessible_add_state (GTK_CELL_ACCESSIBLE (cell), ATK_STATE_FOCUSED, FALSE); g_signal_emit_by_name (accessible, "active-descendant-changed", cell); } g_object_unref (state_set); } } } return FALSE; } static gboolean focus_out (GtkWidget *widget) { GtkTreeViewAccessible *accessible; accessible = GTK_TREE_VIEW_ACCESSIBLE (gtk_widget_get_accessible (widget)); if (accessible->focus_cell) { _gtk_cell_accessible_remove_state (GTK_CELL_ACCESSIBLE (accessible->focus_cell), ATK_STATE_ACTIVE, FALSE); _gtk_cell_accessible_remove_state (GTK_CELL_ACCESSIBLE (accessible->focus_cell), ATK_STATE_FOCUSED, FALSE); g_object_unref (accessible->focus_cell); accessible->focus_cell = NULL; } return FALSE; } void _gtk_tree_view_accessible_reorder (GtkTreeView *treeview) { GtkTreeViewAccessible *accessible; accessible = GTK_TREE_VIEW_ACCESSIBLE (_gtk_widget_peek_accessible (GTK_WIDGET (treeview))); if (accessible == NULL) return; g_signal_emit_by_name (accessible, "row-reordered"); } static gboolean is_cell_showing (GtkTreeView *tree_view, GdkRectangle *cell_rect) { GdkRectangle rect, *visible_rect; GdkRectangle rect1, *tree_cell_rect; gint bx, by; gboolean is_showing; /* A cell is considered "SHOWING" if any part of the cell is * in the visible area. Other ways we could do this is by a * cell's midpoint or if the cell is fully in the visible range. * Since we have the cell_rect x, y, width, height of the cell, * any of these is easy to compute. * * It is assumed that cell's rectangle is in widget coordinates * so we must transform to tree cordinates. */ visible_rect = ▭ tree_cell_rect = &rect1; tree_cell_rect->x = cell_rect->x; tree_cell_rect->y = cell_rect->y; tree_cell_rect->width = cell_rect->width; tree_cell_rect->height = cell_rect->height; gtk_tree_view_get_visible_rect (tree_view, visible_rect); gtk_tree_view_convert_tree_to_bin_window_coords (tree_view, visible_rect->x, visible_rect->y, &bx, &by); if (((tree_cell_rect->x + tree_cell_rect->width) < bx) || ((tree_cell_rect->y + tree_cell_rect->height) < by) || (tree_cell_rect->x > (bx + visible_rect->width)) || (tree_cell_rect->y > (by + visible_rect->height))) is_showing = FALSE; else is_showing = TRUE; return is_showing; } /* Misc Public */ /* This function is called when a cell's flyweight is created in * gtk_tree_view_accessible_table_ref_at with emit_change_signal * set to FALSE and in model_row_changed() on receipt of "row-changed" * signal when emit_change_signal is set to TRUE */ static void update_cell_value (GtkRendererCellAccessible *renderer_cell, GtkTreeViewAccessible *accessible, gboolean emit_change_signal) { GtkTreeViewAccessibleCellInfo *cell_info; GtkTreeView *tree_view; GtkTreeModel *tree_model; GtkTreePath *path; GtkTreeIter iter; GtkCellAccessible *cell; gboolean is_expander, is_expanded; cell = GTK_CELL_ACCESSIBLE (renderer_cell); cell_info = find_cell_info (accessible, cell); if (!cell_info) return; if (emit_change_signal) { tree_view = GTK_TREE_VIEW (gtk_accessible_get_widget (GTK_ACCESSIBLE (accessible))); tree_model = gtk_tree_view_get_model (tree_view); path = cell_info_get_path (cell_info); if (path == NULL) return; gtk_tree_model_get_iter (tree_model, &iter, path); is_expander = FALSE; is_expanded = FALSE; if (gtk_tree_model_iter_has_child (tree_model, &iter)) { GtkTreeViewColumn *expander_tv; expander_tv = gtk_tree_view_get_expander_column (tree_view); if (expander_tv == cell_info->cell_col_ref) { is_expander = TRUE; is_expanded = gtk_tree_view_row_expanded (tree_view, path); } } gtk_tree_path_free (path); gtk_tree_view_column_cell_set_cell_data (cell_info->cell_col_ref, tree_model, &iter, is_expander, is_expanded); } _gtk_renderer_cell_accessible_update_cache (renderer_cell); } /* Misc Private */ static void cell_destroyed (gpointer data) { GtkTreeViewAccessibleCellInfo *cell_info = data; cell_info->cell = NULL; g_hash_table_remove (cell_info->view->cell_infos, cell_info); } static int cell_info_get_index (GtkTreeView *tree_view, GtkTreeViewAccessibleCellInfo *info) { int index; index = _gtk_rbtree_node_get_index (info->tree, info->node) + 1; index *= get_n_columns (tree_view); index += get_column_number (tree_view, info->cell_col_ref); return index; } static void cell_info_new (GtkTreeViewAccessible *accessible, GtkTreeModel *tree_model, GtkRBTree *tree, GtkRBNode *node, GtkTreeViewColumn *tv_col, GtkCellAccessible *cell) { GtkTreeViewAccessibleCellInfo *cell_info; cell_info = g_new (GtkTreeViewAccessibleCellInfo, 1); cell_info->tree = tree; cell_info->node = node; cell_info->cell_col_ref = tv_col; cell_info->cell = cell; cell_info->view = accessible; g_object_set_qdata_full (G_OBJECT (cell), gtk_tree_view_accessible_get_data_quark (), cell_info, cell_destroyed); g_hash_table_replace (accessible->cell_infos, cell_info, cell_info); } static GtkCellAccessible * peek_cell (GtkTreeViewAccessible *accessible, GtkRBTree *tree, GtkRBNode *node, GtkTreeViewColumn *column) { GtkTreeViewAccessibleCellInfo lookup, *cell_info; lookup.tree = tree; lookup.node = node; lookup.cell_col_ref = column; cell_info = g_hash_table_lookup (accessible->cell_infos, &lookup); if (cell_info == NULL) return NULL; return cell_info->cell; } static GtkCellAccessible * find_cell (GtkTreeViewAccessible *accessible, gint index) { GtkTreeView *tree_view; GtkRBTree *tree; GtkRBNode *node; tree_view = GTK_TREE_VIEW (gtk_accessible_get_widget (GTK_ACCESSIBLE (accessible))); if (!_gtk_rbtree_find_index (_gtk_tree_view_get_rbtree (tree_view), index / get_n_columns (tree_view) - 1, &tree, &node)) { g_assert_not_reached (); } return peek_cell (accessible, tree, node, get_visible_column (tree_view, index % get_n_columns (tree_view))); } /* Returns the column number of the specified GtkTreeViewColumn * The column must be visible. */ static gint get_column_number (GtkTreeView *treeview, GtkTreeViewColumn *column) { GtkTreeViewColumn *cur; guint i, number; number = 0; for (i = 0; i < gtk_tree_view_get_n_columns (treeview); i++) { cur = gtk_tree_view_get_column (treeview, i); if (!gtk_tree_view_column_get_visible (cur)) continue; if (cur == column) break; number++; } g_return_val_if_fail (i < gtk_tree_view_get_n_columns (treeview), 0); return number; } static gint get_index (GtkTreeView *tree_view, GtkTreePath *path, gint actual_column) { gint depth = 0; gint index = 1; gint *indices = NULL; if (path) { depth = gtk_tree_path_get_depth (path); indices = gtk_tree_path_get_indices (path); } if (depth > 1) { GtkTreePath *copy_path; GtkTreeModel *model; model = gtk_tree_view_get_model (tree_view); copy_path = gtk_tree_path_copy (path); gtk_tree_path_up (copy_path); count_rows (model, NULL, copy_path, &index, 0, depth); gtk_tree_path_free (copy_path); } if (path) index += indices[depth - 1]; index *= get_n_columns (tree_view); index += actual_column; return index; } /* The function count_rows counts the number of rows starting at iter * and ending at end_path. The value of level is the depth of iter and * the value of depth is the depth of end_path. Rows at depth before * end_path are counted. This functions counts rows which are not visible * because an ancestor is collapsed. */ static void count_rows (GtkTreeModel *model, GtkTreeIter *iter, GtkTreePath *end_path, gint *count, gint level, gint depth) { GtkTreeIter child_iter; if (!model) return; level++; *count += gtk_tree_model_iter_n_children (model, iter); if (gtk_tree_model_get_flags (model) & GTK_TREE_MODEL_LIST_ONLY) return; if (level >= depth) return; if (gtk_tree_model_iter_children (model, &child_iter, iter)) { gboolean ret_val = TRUE; while (ret_val) { if (level == depth - 1) { GtkTreePath *iter_path; gboolean finished = FALSE; iter_path = gtk_tree_model_get_path (model, &child_iter); if (end_path && gtk_tree_path_compare (iter_path, end_path) >= 0) finished = TRUE; gtk_tree_path_free (iter_path); if (finished) break; } if (gtk_tree_model_iter_has_child (model, &child_iter)) count_rows (model, &child_iter, end_path, count, level, depth); ret_val = gtk_tree_model_iter_next (model, &child_iter); } } } static gboolean get_rbtree_column_from_index (GtkTreeView *tree_view, gint index, GtkRBTree **tree, GtkRBNode **node, GtkTreeViewColumn **column) { guint n_columns = get_n_columns (tree_view); if (n_columns == 0) return FALSE; /* First row is the column headers */ index -= n_columns; if (index < 0) return FALSE; if (tree) { g_return_val_if_fail (node != NULL, FALSE); if (!_gtk_rbtree_find_index (_gtk_tree_view_get_rbtree (tree_view), index / n_columns, tree, node)) return FALSE; } if (column) { *column = get_visible_column (tree_view, index % n_columns); if (*column == NULL) return FALSE; } return TRUE; } static GtkTreeViewAccessibleCellInfo * find_cell_info (GtkTreeViewAccessible *accessible, GtkCellAccessible *cell) { AtkObject *parent; parent = atk_object_get_parent (ATK_OBJECT (cell)); while (parent != ATK_OBJECT (accessible)) { cell = GTK_CELL_ACCESSIBLE (parent); parent = atk_object_get_parent (ATK_OBJECT (cell)); } return g_object_get_qdata (G_OBJECT (cell), gtk_tree_view_accessible_get_data_quark ()); } static AtkObject * get_header_from_column (GtkTreeViewColumn *tv_col) { AtkObject *rc; GtkWidget *header_widget; if (tv_col == NULL) return NULL; header_widget = gtk_tree_view_column_get_button (tv_col); if (header_widget) rc = gtk_widget_get_accessible (header_widget); else rc = NULL; return rc; } void _gtk_tree_view_accessible_add (GtkTreeView *treeview, GtkRBTree *tree, GtkRBNode *node) { GtkTreeViewAccessible *accessible; guint row, n_rows, n_cols, i; accessible = GTK_TREE_VIEW_ACCESSIBLE (_gtk_widget_peek_accessible (GTK_WIDGET (treeview))); if (accessible == NULL) return; if (node == NULL) { row = tree->parent_tree ? _gtk_rbtree_node_get_index (tree->parent_tree, tree->parent_node) : 0; n_rows = tree->root->total_count; } else { row = _gtk_rbtree_node_get_index (tree, node); n_rows = 1 + (node->children ? node->children->root->total_count : 0); } g_signal_emit_by_name (accessible, "row-inserted", row, n_rows); n_cols = get_n_columns (treeview); for (i = (row + 1) * n_cols; i < (row + n_rows + 1) * n_cols; i++) { /* Pass NULL as the child object, i.e. 4th argument */ g_signal_emit_by_name (accessible, "children-changed::add", i, NULL, NULL); } } void _gtk_tree_view_accessible_remove (GtkTreeView *treeview, GtkRBTree *tree, GtkRBNode *node) { GtkTreeViewAccessibleCellInfo *cell_info; GHashTableIter iter; GtkTreeViewAccessible *accessible; guint row, n_rows, n_cols, i; accessible = GTK_TREE_VIEW_ACCESSIBLE (_gtk_widget_peek_accessible (GTK_WIDGET (treeview))); if (accessible == NULL) return; /* if this shows up in profiles, special-case node->children == NULL */ if (node == NULL) { row = tree->parent_tree ? _gtk_rbtree_node_get_index (tree->parent_tree, tree->parent_node) : 0; n_rows = tree->root->total_count + 1; } else { row = _gtk_rbtree_node_get_index (tree, node); n_rows = 1 + (node->children ? node->children->root->total_count : 0); tree = node->children; } g_signal_emit_by_name (accessible, "row-deleted", row, n_rows); n_cols = get_n_columns (treeview); for (i = (n_rows + row + 1) * n_cols - 1; i >= (row + 1) * n_cols; i--) { /* Pass NULL as the child object, i.e. 4th argument */ g_signal_emit_by_name (accessible, "children-changed::remove", i, NULL, NULL); } g_hash_table_iter_init (&iter, accessible->cell_infos); while (g_hash_table_iter_next (&iter, NULL, (gpointer *)&cell_info)) { if (node == cell_info->node || tree == cell_info->tree || (tree && _gtk_rbtree_contains (tree, cell_info->tree))) g_hash_table_iter_remove (&iter); } } void _gtk_tree_view_accessible_changed (GtkTreeView *treeview, GtkRBTree *tree, GtkRBNode *node) { GtkTreeViewAccessible *accessible; guint i; accessible = GTK_TREE_VIEW_ACCESSIBLE (gtk_widget_get_accessible (GTK_WIDGET (treeview))); for (i = 0; i < gtk_tree_view_get_n_columns (treeview); i++) { GtkCellAccessible *cell = peek_cell (accessible, tree, node, gtk_tree_view_get_column (treeview, i)); if (!GTK_IS_RENDERER_CELL_ACCESSIBLE (cell)) continue; update_cell_value (GTK_RENDERER_CELL_ACCESSIBLE (cell), accessible, TRUE); } g_signal_emit_by_name (accessible, "visible-data-changed"); } /* NB: id is not checked, only columns < id are. * This is important so the function works for notification of removal of a column */ static guint to_visible_column_id (GtkTreeView *treeview, guint id) { guint i; guint invisible; invisible = 0; for (i = 0; i < id; i++) { GtkTreeViewColumn *column = gtk_tree_view_get_column (treeview, i); if (!gtk_tree_view_column_get_visible (column)) invisible++; } return id - invisible; } void _gtk_tree_view_accessible_do_add_column (GtkTreeViewAccessible *accessible, GtkTreeView *treeview, GtkTreeViewColumn *column, guint id) { guint row, n_rows, n_cols; /* Generate column-inserted signal */ g_signal_emit_by_name (accessible, "column-inserted", id, 1); n_rows = get_n_rows (treeview); n_cols = get_n_columns (treeview); /* Generate children-changed signals */ for (row = 0; row <= n_rows; row++) { /* Pass NULL as the child object, i.e. 4th argument */ g_signal_emit_by_name (accessible, "children-changed::add", (row * n_cols) + id, NULL, NULL); } } void _gtk_tree_view_accessible_add_column (GtkTreeView *treeview, GtkTreeViewColumn *column, guint id) { AtkObject *obj; if (!gtk_tree_view_column_get_visible (column)) return; obj = _gtk_widget_peek_accessible (GTK_WIDGET (treeview)); if (obj == NULL) return; _gtk_tree_view_accessible_do_add_column (GTK_TREE_VIEW_ACCESSIBLE (obj), treeview, column, to_visible_column_id (treeview, id)); } void _gtk_tree_view_accessible_do_remove_column (GtkTreeViewAccessible *accessible, GtkTreeView *treeview, GtkTreeViewColumn *column, guint id) { GtkTreeViewAccessibleCellInfo *cell_info; GHashTableIter iter; gpointer value; guint row, n_rows, n_cols; /* Clean column from cache */ g_hash_table_iter_init (&iter, accessible->cell_infos); while (g_hash_table_iter_next (&iter, NULL, &value)) { cell_info = value; if (cell_info->cell_col_ref == column) g_hash_table_iter_remove (&iter); } /* Generate column-deleted signal */ g_signal_emit_by_name (accessible, "column-deleted", id, 1); n_rows = get_n_rows (treeview); n_cols = get_n_columns (treeview); /* Generate children-changed signals */ for (row = 0; row <= n_rows; row++) { /* Pass NULL as the child object, 4th argument */ g_signal_emit_by_name (accessible, "children-changed::remove", (row * n_cols) + id, NULL, NULL); } } void _gtk_tree_view_accessible_remove_column (GtkTreeView *treeview, GtkTreeViewColumn *column, guint id) { AtkObject *obj; if (!gtk_tree_view_column_get_visible (column)) return; obj = _gtk_widget_peek_accessible (GTK_WIDGET (treeview)); if (obj == NULL) return; _gtk_tree_view_accessible_do_remove_column (GTK_TREE_VIEW_ACCESSIBLE (obj), treeview, column, to_visible_column_id (treeview, id)); } void _gtk_tree_view_accessible_reorder_column (GtkTreeView *treeview, GtkTreeViewColumn *column) { AtkObject *obj; obj = _gtk_widget_peek_accessible (GTK_WIDGET (treeview)); if (obj == NULL) return; g_signal_emit_by_name (obj, "column-reordered"); } void _gtk_tree_view_accessible_toggle_visibility (GtkTreeView *treeview, GtkTreeViewColumn *column) { AtkObject *obj; guint id; obj = _gtk_widget_peek_accessible (GTK_WIDGET (treeview)); if (obj == NULL) return; id = get_column_number (treeview, column); if (gtk_tree_view_column_get_visible (column)) _gtk_tree_view_accessible_do_add_column (GTK_TREE_VIEW_ACCESSIBLE (obj), treeview, column, id); else _gtk_tree_view_accessible_do_remove_column (GTK_TREE_VIEW_ACCESSIBLE (obj), treeview, column, id); } void _gtk_tree_view_accessible_add_state (GtkTreeView *treeview, GtkRBTree *tree, GtkRBNode *node, GtkCellRendererState state) { GtkTreeViewAccessible *accessible; AtkObject *obj; guint i; obj = _gtk_widget_peek_accessible (GTK_WIDGET (treeview)); if (obj == NULL) return; accessible = GTK_TREE_VIEW_ACCESSIBLE (obj); for (i = 0; i < gtk_tree_view_get_n_columns (treeview); i++) { GtkCellAccessible *cell = peek_cell (accessible, tree, node, gtk_tree_view_get_column (treeview, i)); if (cell == NULL) continue; _gtk_cell_accessible_state_changed (cell, state, 0); } if (state == GTK_CELL_RENDERER_SELECTED) g_signal_emit_by_name (accessible, "selection-changed"); } void _gtk_tree_view_accessible_remove_state (GtkTreeView *treeview, GtkRBTree *tree, GtkRBNode *node, GtkCellRendererState state) { GtkTreeViewAccessible *accessible; AtkObject *obj; guint i; obj = _gtk_widget_peek_accessible (GTK_WIDGET (treeview)); if (obj == NULL) return; accessible = GTK_TREE_VIEW_ACCESSIBLE (obj); for (i = 0; i < gtk_tree_view_get_n_columns (treeview); i++) { GtkCellAccessible *cell = peek_cell (accessible, tree, node, gtk_tree_view_get_column (treeview, i)); if (cell == NULL) continue; _gtk_cell_accessible_state_changed (cell, 0, state); } if (state == GTK_CELL_RENDERER_SELECTED) g_signal_emit_by_name (accessible, "selection-changed"); }