+++ /dev/null
-/* 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 <string.h>
-#include <gtk/gtk.h>
-#ifdef GDK_WINDOWING_X11
-#include <gdk/x11/gdkx.h>
-#endif
-#include "gailtreeview.h"
-#include "gailrenderercell.h"
-#include "gailbooleancell.h"
-#include "gailcontainercell.h"
-#include "gailtextcell.h"
-#include "gailcellparent.h"
-
-typedef struct _GailTreeViewCellInfo GailTreeViewCellInfo;
-
-static void gail_tree_view_class_init (GailTreeViewClass *klass);
-static void gail_tree_view_init (GailTreeView *view);
-static void gail_tree_view_real_initialize (AtkObject *obj,
- gpointer data);
-static void gail_tree_view_real_notify_gtk (GObject *obj,
- GParamSpec *pspec);
-static void gail_tree_view_finalize (GObject *object);
-
-static void gail_tree_view_connect_widget_destroyed
- (GtkAccessible *accessible);
-static void gail_tree_view_destroyed (GtkWidget *widget,
- GtkAccessible *accessible);
-/* atkobject.h */
-
-static gint gail_tree_view_get_n_children (AtkObject *obj);
-static AtkObject* gail_tree_view_ref_child (AtkObject *obj,
- gint i);
-static AtkStateSet* gail_tree_view_ref_state_set (AtkObject *obj);
-
-/* atkcomponent.h */
-
-static void atk_component_interface_init (AtkComponentIface *iface);
-
-static AtkObject* gail_tree_view_ref_accessible_at_point
- (AtkComponent *component,
- gint x,
- gint y,
- AtkCoordType coord_type);
-
-/* atktable.h */
-
-static void atk_table_interface_init (AtkTableIface *iface);
-
-static gint gail_tree_view_get_index_at (AtkTable *table,
- gint row,
- gint column);
-static gint gail_tree_view_get_column_at_index
- (AtkTable *table,
- gint index);
-static gint gail_tree_view_get_row_at_index (AtkTable *table,
- gint index);
-
-static AtkObject* gail_tree_view_table_ref_at (AtkTable *table,
- gint row,
- gint column);
-static gint gail_tree_view_get_n_rows (AtkTable *table);
-static gint gail_tree_view_get_n_columns (AtkTable *table);
-static gboolean gail_tree_view_is_row_selected (AtkTable *table,
- gint row);
-static gboolean gail_tree_view_is_selected (AtkTable *table,
- gint row,
- gint column);
-static gint gail_tree_view_get_selected_rows
- (AtkTable *table,
- gint **selected);
-static gboolean gail_tree_view_add_row_selection
- (AtkTable *table,
- gint row);
-static gboolean gail_tree_view_remove_row_selection
- (AtkTable *table,
- gint row);
-static AtkObject* gail_tree_view_get_column_header
- (AtkTable *table,
- gint column);
-static const gchar*
- gail_tree_view_get_column_description
- (AtkTable *table,
- gint column);
-
-/* atkselection.h */
-
-static void atk_selection_interface_init (AtkSelectionIface *iface);
-static gboolean gail_tree_view_add_selection (AtkSelection *selection,
- gint i);
-static gboolean gail_tree_view_clear_selection (AtkSelection *selection);
-static AtkObject* gail_tree_view_ref_selection (AtkSelection *selection,
- gint i);
-static gint gail_tree_view_get_selection_count
- (AtkSelection *selection);
-static gboolean gail_tree_view_is_child_selected
- (AtkSelection *selection,
- gint i);
-
-/* gailcellparent.h */
-
-static void gail_cell_parent_interface_init (GailCellParentIface *iface);
-static void gail_tree_view_get_cell_extents (GailCellParent *parent,
- GailCell *cell,
- gint *x,
- gint *y,
- gint *width,
- gint *height,
- AtkCoordType coord_type);
-static void gail_tree_view_get_cell_area (GailCellParent *parent,
- GailCell *cell,
- GdkRectangle *cell_rect);
-static gboolean gail_tree_view_grab_cell_focus (GailCellParent *parent,
- GailCell *cell);
-
-/* signal handling */
-
-static gboolean gail_tree_view_expand_row_gtk (GtkTreeView *tree_view,
- GtkTreeIter *iter,
- GtkTreePath *path);
-static gint idle_expand_row (gpointer data);
-static gboolean gail_tree_view_collapse_row_gtk (GtkTreeView *tree_view,
- GtkTreeIter *iter,
- GtkTreePath *path);
-static void gail_tree_view_size_allocate_gtk (GtkWidget *widget,
- GtkAllocation *allocation);
-static void gail_tree_view_changed_gtk (GtkTreeSelection *selection,
- gpointer data);
-
-static void columns_changed (GtkTreeView *tree_view);
-static void cursor_changed (GtkTreeView *tree_view);
-static gint idle_cursor_changed (gpointer data);
-static gboolean focus_in (GtkWidget *widget);
-static gboolean focus_out (GtkWidget *widget);
-
-static void model_row_changed (GtkTreeModel *tree_model,
- GtkTreePath *path,
- GtkTreeIter *iter,
- gpointer user_data);
-static void column_visibility_changed (GObject *object,
- GParamSpec *param,
- gpointer user_data);
-static void model_row_inserted (GtkTreeModel *tree_model,
- GtkTreePath *path,
- GtkTreeIter *iter,
- gpointer user_data);
-static void model_row_deleted (GtkTreeModel *tree_model,
- GtkTreePath *path,
- gpointer user_data);
-static void destroy_count_func (GtkTreeView *tree_view,
- GtkTreePath *path,
- gint count,
- gpointer user_data);
-static void model_rows_reordered (GtkTreeModel *tree_model,
- GtkTreePath *path,
- GtkTreeIter *iter,
- gint *new_order,
- gpointer user_data);
-static void adjustment_changed (GtkAdjustment *adjustment,
- GtkTreeView *tree_view);
-
-/* Misc */
-
-static void set_iter_nth_row (GtkTreeView *tree_view,
- GtkTreeIter *iter,
- gint row);
-static gint get_row_from_tree_path (GtkTreeView *tree_view,
- GtkTreePath *path);
-static GtkTreeViewColumn* get_column (GtkTreeView *tree_view,
- gint in_col);
-static gint get_actual_column_number (GtkTreeView *tree_view,
- gint visible_column);
-static gint get_visible_column_number (GtkTreeView *tree_view,
- gint actual_column);
-static void iterate_thru_children (GtkTreeView *tree_view,
- GtkTreeModel *tree_model,
- GtkTreePath *tree_path,
- GtkTreePath *orig,
- gint *count,
- gint depth);
-static GtkTreeIter* return_iter_nth_row (GtkTreeView *tree_view,
- GtkTreeModel *tree_model,
- GtkTreeIter *iter,
- gint increment,
- gint row);
-static void clean_rows (GailTreeView *tree_view);
-static void clean_cols (GailTreeView *tree_view,
- GtkTreeViewColumn *tv_col);
-static void traverse_cells (GailTreeView *tree_view,
- GtkTreePath *tree_path,
- gboolean set_stale,
- gboolean inc_row);
-static gboolean update_cell_value (GailRendererCell *renderer_cell,
- GailTreeView *gailview,
- gboolean emit_change_signal);
-static void set_cell_visibility (GtkTreeView *tree_view,
- GailCell *cell,
- GtkTreeViewColumn *tv_col,
- GtkTreePath *tree_path,
- gboolean emit_signal);
-static gboolean is_cell_showing (GtkTreeView *tree_view,
- GdkRectangle *cell_rect);
-static void set_expand_state (GtkTreeView *tree_view,
- GtkTreeModel *tree_model,
- GailTreeView *gailview,
- GtkTreePath *tree_path,
- gboolean set_on_ancestor);
-static void add_cell_actions (GailCell *cell,
- gboolean editable);
-
-static void toggle_cell_expanded (GailCell *cell);
-static void toggle_cell_toggled (GailCell *cell);
-static void edit_cell (GailCell *cell);
-static void activate_cell (GailCell *cell);
-static void cell_destroyed (gpointer data);
-#if 0
-static void cell_info_remove (GailTreeView *tree_view,
- GailCell *cell);
-#endif
-static void cell_info_get_index (GtkTreeView *tree_view,
- GailTreeViewCellInfo *info,
- gint *index);
-static void cell_info_new (GailTreeView *gailview,
- GtkTreeModel *tree_model,
- GtkTreePath *path,
- GtkTreeViewColumn *tv_col,
- GailCell *cell);
-static GailCell* find_cell (GailTreeView *gailview,
- gint index);
-static void refresh_cell_index (GailCell *cell);
-static void get_selected_rows (GtkTreeModel *model,
- GtkTreePath *path,
- GtkTreeIter *iter,
- gpointer data);
-static void connect_model_signals (GtkTreeView *view,
- GailTreeView *gailview);
-static void disconnect_model_signals (GailTreeView *gailview);
-static void clear_cached_data (GailTreeView *view);
-static gint get_column_number (GtkTreeView *tree_view,
- GtkTreeViewColumn *column,
- gboolean visible);
-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_next_node_with_child_at_depth
- (GtkTreeModel *model,
- GtkTreeIter *iter,
- GtkTreePath **path,
- gint level,
- gint depth);
-static gboolean get_next_node_with_child (GtkTreeModel *model,
- GtkTreePath *path,
- GtkTreePath **return_path);
-static gboolean get_tree_path_from_row_index (GtkTreeModel *model,
- gint row_index,
- GtkTreePath **tree_path);
-static gboolean get_path_column_from_index (GtkTreeView *tree_view,
- gint index,
- GtkTreePath **path,
- GtkTreeViewColumn **column);
-static void set_cell_expandable (GailCell *cell);
-
-static GailTreeViewCellInfo* find_cell_info (GailTreeView *view,
- GailCell *cell,
- gboolean live_only);
-static AtkObject * get_header_from_column (GtkTreeViewColumn *tv_col);
-static gboolean idle_garbage_collect_cell_data (gpointer data);
-static gboolean garbage_collect_cell_data (gpointer data);
-
-static gboolean editing = FALSE;
-
-struct _GailTreeViewCellInfo
-{
- GailCell *cell;
- GtkTreeRowReference *cell_row_ref;
- GtkTreeViewColumn *cell_col_ref;
- GailTreeView *view;
- gboolean in_use;
-};
-
-G_DEFINE_TYPE_WITH_CODE (GailTreeView, gail_tree_view, GAIL_TYPE_CONTAINER,
- 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 (GAIL_TYPE_CELL_PARENT, gail_cell_parent_interface_init))
-
-static void
-gail_tree_view_class_init (GailTreeViewClass *klass)
-{
- AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
- GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
- GtkAccessibleClass *accessible_class;
- GailWidgetClass *widget_class;
- GailContainerClass *container_class;
-
- accessible_class = (GtkAccessibleClass*)klass;
- widget_class = (GailWidgetClass*)klass;
- container_class = (GailContainerClass*)klass;
-
- class->get_n_children = gail_tree_view_get_n_children;
- class->ref_child = gail_tree_view_ref_child;
- class->ref_state_set = gail_tree_view_ref_state_set;
- class->initialize = gail_tree_view_real_initialize;
-
- widget_class->notify_gtk = gail_tree_view_real_notify_gtk;
-
- accessible_class->connect_widget_destroyed = gail_tree_view_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 = gail_tree_view_finalize;
-}
-
-static void
-gail_tree_view_init (GailTreeView *view)
-{
-}
-
-static void
-gail_tree_view_hadjustment_set (GObject *widget,
- GParamSpec *pspec,
- gpointer data)
-{
- GtkAdjustment *adj;
- GailTreeView *view = data;
-
- g_object_get (widget, "hadjustment", &adj, NULL);
- view->old_hadj = adj;
- g_object_add_weak_pointer (G_OBJECT (view->old_hadj), (gpointer *)&view->old_hadj);
- g_signal_connect (adj,
- "value-changed",
- G_CALLBACK (adjustment_changed),
- widget);
-}
-
-static void
-gail_tree_view_vadjustment_set (GObject *widget,
- GParamSpec *pspec,
- gpointer data)
-{
- GtkAdjustment *adj;
- GailTreeView *view = data;
-
- g_object_get (widget, "vadjustment", &adj, NULL);
- view->old_vadj = adj;
- g_object_add_weak_pointer (G_OBJECT (view->old_vadj), (gpointer *)&view->old_vadj);
- g_signal_connect (adj,
- "value-changed",
- G_CALLBACK (adjustment_changed),
- widget);
-}
-
-static void
-gail_tree_view_real_initialize (AtkObject *obj,
- gpointer data)
-{
- GailTreeView *view;
- GtkTreeView *tree_view;
- GtkTreeModel *tree_model;
- GList *tv_cols, *tmp_list;
- GtkWidget *widget;
-
- ATK_OBJECT_CLASS (gail_tree_view_parent_class)->initialize (obj, data);
-
- view = GAIL_TREE_VIEW (obj);
- view->col_data = NULL;
- view->focus_cell = NULL;
- view->old_hadj = NULL;
- view->old_vadj = NULL;
- view->idle_expand_id = 0;
- view->idle_expand_path = NULL;
-
- view->n_children_deleted = 0;
-
- view->cell_info_by_index = g_hash_table_new (g_int_hash, g_int_equal);
-
- widget = GTK_WIDGET (data);
- g_signal_connect_after (widget,
- "row-collapsed",
- G_CALLBACK (gail_tree_view_collapse_row_gtk),
- NULL);
- g_signal_connect (widget,
- "row-expanded",
- G_CALLBACK (gail_tree_view_expand_row_gtk),
- NULL);
- g_signal_connect (widget,
- "size-allocate",
- G_CALLBACK (gail_tree_view_size_allocate_gtk),
- NULL);
-
- tree_view = GTK_TREE_VIEW (widget);
- tree_model = gtk_tree_view_get_model (tree_view);
-
- /* Set up signal handling */
-
- g_signal_connect_data (gtk_tree_view_get_selection (tree_view),
- "changed",
- (GCallback) gail_tree_view_changed_gtk,
- obj, NULL, 0);
-
- g_signal_connect_data (tree_view, "columns-changed",
- (GCallback) columns_changed, NULL, NULL, 0);
- g_signal_connect_data (tree_view, "cursor-changed",
- (GCallback) cursor_changed, NULL, NULL, 0);
- g_signal_connect_data (GTK_WIDGET (tree_view), "focus-in-event",
- (GCallback) focus_in, NULL, NULL, 0);
- g_signal_connect_data (GTK_WIDGET (tree_view), "focus-out-event",
- (GCallback) focus_out, NULL, NULL, 0);
-
- view->tree_model = tree_model;
- view->n_rows = 0;
- view->n_cols = 0;
- if (tree_model)
- {
- g_object_add_weak_pointer (G_OBJECT (view->tree_model), (gpointer *)&view->tree_model);
- count_rows (tree_model, NULL, NULL, &view->n_rows, 0, G_MAXINT);
- connect_model_signals (tree_view, view);
-
- 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;
- }
- else
- {
- obj->role = ATK_ROLE_UNKNOWN;
- }
-
- /* adjustment callbacks */
-
- gail_tree_view_hadjustment_set (G_OBJECT (widget), NULL, view);
- gail_tree_view_vadjustment_set (G_OBJECT (widget), NULL, view);
- g_signal_connect (widget,
- "notify::hadjustment",
- G_CALLBACK (gail_tree_view_hadjustment_set),
- view);
- g_signal_connect (widget,
- "notify::vadjustment",
- G_CALLBACK (gail_tree_view_vadjustment_set),
- view);
-
- view->col_data = g_array_sized_new (FALSE, TRUE,
- sizeof(GtkTreeViewColumn *), 0);
-
- tv_cols = gtk_tree_view_get_columns (tree_view);
-
- for (tmp_list = tv_cols; tmp_list; tmp_list = tmp_list->next)
- {
- view->n_cols++;
- g_signal_connect_data (tmp_list->data, "notify::visible",
- (GCallback)column_visibility_changed,
- tree_view, NULL, FALSE);
- g_array_append_val (view->col_data, tmp_list->data);
- }
-
- gtk_tree_view_set_destroy_count_func (tree_view,
- destroy_count_func,
- NULL, NULL);
- g_list_free (tv_cols);
-}
-
-static void
-gail_tree_view_real_notify_gtk (GObject *obj,
- GParamSpec *pspec)
-{
- GtkWidget *widget;
- AtkObject* atk_obj;
- GtkTreeView *tree_view;
- GailTreeView *gailview;
- GtkAdjustment *adj;
-
- widget = GTK_WIDGET (obj);
- atk_obj = gtk_widget_get_accessible (widget);
- tree_view = GTK_TREE_VIEW (widget);
- gailview = GAIL_TREE_VIEW (atk_obj);
-
- if (strcmp (pspec->name, "model") == 0)
- {
- GtkTreeModel *tree_model;
- AtkRole role;
-
- tree_model = gtk_tree_view_get_model (tree_view);
- if (gailview->tree_model)
- disconnect_model_signals (gailview);
- clear_cached_data (gailview);
- gailview->tree_model = tree_model;
- gailview->n_rows = 0;
- /*
- * if there is no model the GtkTreeView is probably being destroyed
- */
- if (tree_model)
- {
- g_object_add_weak_pointer (G_OBJECT (gailview->tree_model), (gpointer *)&gailview->tree_model);
- count_rows (tree_model, NULL, NULL, &gailview->n_rows, 0, G_MAXINT);
- connect_model_signals (tree_view, gailview);
-
- 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_obj, role);
- g_object_freeze_notify (G_OBJECT (atk_obj));
- g_signal_emit_by_name (atk_obj, "model_changed");
- g_signal_emit_by_name (atk_obj, "visible_data_changed");
- g_object_thaw_notify (G_OBJECT (atk_obj));
- }
- else if (strcmp (pspec->name, "hadjustment") == 0)
- {
- g_object_get (tree_view, "hadjustment", &adj, NULL);
- g_signal_handlers_disconnect_by_func (gailview->old_hadj,
- (gpointer) adjustment_changed,
- widget);
- gailview->old_hadj = adj;
- g_object_add_weak_pointer (G_OBJECT (gailview->old_hadj), (gpointer *)&gailview->old_hadj);
- g_signal_connect (adj,
- "value-changed",
- G_CALLBACK (adjustment_changed),
- tree_view);
- }
- else if (strcmp (pspec->name, "vadjustment") == 0)
- {
- g_object_get (tree_view, "vadjustment", &adj, NULL);
- g_signal_handlers_disconnect_by_func (gailview->old_vadj,
- (gpointer) adjustment_changed,
- widget);
- gailview->old_vadj = adj;
- g_object_add_weak_pointer (G_OBJECT (gailview->old_hadj), (gpointer *)&gailview->old_vadj);
- g_signal_connect (adj,
- "value-changed",
- G_CALLBACK (adjustment_changed),
- tree_view);
- }
- else
- GAIL_WIDGET_CLASS (gail_tree_view_parent_class)->notify_gtk (obj, pspec);
-}
-
-static void
-gail_tree_view_finalize (GObject *object)
-{
- GailTreeView *view = GAIL_TREE_VIEW (object);
-
- clear_cached_data (view);
-
- /* remove any idle handlers still pending */
- if (view->idle_garbage_collect_id)
- g_source_remove (view->idle_garbage_collect_id);
- if (view->idle_cursor_changed_id)
- g_source_remove (view->idle_cursor_changed_id);
- if (view->idle_expand_id)
- g_source_remove (view->idle_expand_id);
-
- if (view->tree_model)
- disconnect_model_signals (view);
-
- if (view->cell_info_by_index)
- g_hash_table_destroy (view->cell_info_by_index);
-
- if (view->col_data)
- {
- GArray *array = view->col_data;
-
- /*
- * No need to free the contents of the array since it
- * just contains pointers to the GtkTreeViewColumn
- * objects that are in the GtkTreeView.
- */
- g_array_free (array, TRUE);
- }
-
- G_OBJECT_CLASS (gail_tree_view_parent_class)->finalize (object);
-}
-
-static void
-gail_tree_view_connect_widget_destroyed (GtkAccessible *accessible)
-{
- GtkWidget *widget;
-
- widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (accessible));
- if (widget)
- {
- g_signal_connect_after (widget,
- "destroy",
- G_CALLBACK (gail_tree_view_destroyed),
- accessible);
- }
- GTK_ACCESSIBLE_CLASS (gail_tree_view_parent_class)->connect_widget_destroyed (accessible);
-}
-
-static void
-gail_tree_view_destroyed (GtkWidget *widget,
- GtkAccessible *accessible)
-{
- GtkAdjustment *adj;
- GailTreeView *gailview;
-
- if (!GTK_IS_TREE_VIEW (widget))
- return;
-
- gailview = GAIL_TREE_VIEW (accessible);
- adj = gailview->old_hadj;
- if (adj)
- g_signal_handlers_disconnect_by_func (adj,
- (gpointer) adjustment_changed,
- widget);
- adj = gailview->old_vadj;
- if (adj)
- g_signal_handlers_disconnect_by_func (adj,
- (gpointer) adjustment_changed,
- widget);
- if (gailview->tree_model)
- {
- disconnect_model_signals (gailview);
- gailview->tree_model = NULL;
- }
- if (gailview->focus_cell)
- {
- g_object_unref (gailview->focus_cell);
- gailview->focus_cell = NULL;
- }
- if (gailview->idle_expand_id)
- {
- g_source_remove (gailview->idle_expand_id);
- gailview->idle_expand_id = 0;
- }
-}
-
-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, FALSE));
- }
- else
- index = -1;
-
- if (focus_path)
- gtk_tree_path_free (focus_path);
-
- return index;
-}
-
-AtkObject *
-gail_tree_view_ref_focus_cell (GtkTreeView *tree_view)
-{
- /*
- * This function returns a reference to the accessible object for the cell
- * in the treeview which has focus, if a cell has focus.
- */
- 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;
-}
-
-/* atkobject.h */
-
-static gint
-gail_tree_view_get_n_children (AtkObject *obj)
-{
- GtkWidget *widget;
-
- if (!GAIL_IS_TREE_VIEW (obj))
- return 0;
-
- widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj));
- if (widget == NULL)
- return 0;
-
- return (GAIL_TREE_VIEW (obj)->n_rows + 1) * GAIL_TREE_VIEW (obj)->n_cols;
-}
-
-static AtkObject*
-gail_tree_view_ref_child (AtkObject *obj,
- gint i)
-{
- GtkWidget *widget;
- GailTreeView *gailview;
- GailCell *cell;
- GtkTreeView *tree_view;
- GtkTreeModel *tree_model;
- GtkCellRenderer *renderer;
- GtkTreeIter iter;
- GtkTreeViewColumn *tv_col;
- GtkTreeSelection *selection;
- GtkTreePath *path;
- AtkRegistry *default_registry;
- AtkObjectFactory *factory;
- AtkObject *child;
- AtkObject *parent;
- GtkTreeViewColumn *expander_tv;
- GList *renderer_list;
- GList *l;
- GailContainerCell *container = NULL;
- GailRendererCell *renderer_cell;
- gboolean is_expander, is_expanded, retval;
- gboolean editable = FALSE;
- gint focus_index;
-
- g_return_val_if_fail (GAIL_IS_TREE_VIEW (obj), NULL);
- g_return_val_if_fail (i >= 0, NULL);
-
- widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj));
- if (widget == NULL)
- /*
- * State is defunct
- */
- return NULL;
-
- if (i >= gail_tree_view_get_n_children (obj))
- return NULL;
-
- gailview = GAIL_TREE_VIEW (obj);
- tree_view = GTK_TREE_VIEW (widget);
- if (i < gailview->n_cols)
- {
- tv_col = gtk_tree_view_get_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 (gailview, i);
- if (cell)
- {
- g_object_ref (cell);
- return ATK_OBJECT (cell);
- }
-
- if (gailview->focus_cell == NULL)
- focus_index = get_focus_index (tree_view);
- else
- focus_index = -1;
- /*
- * Find the TreePath and GtkTreeViewColumn for the index
- */
- if (!get_path_column_from_index (tree_view, i, &path, &tv_col))
- return NULL;
-
- 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_tree_model_iter_has_child (tree_model, &iter))
- {
- if (expander_tv == tv_col)
- {
- is_expander = TRUE;
- is_expanded = gtk_tree_view_row_expanded (tree_view, path);
- }
- }
- 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 are more than one renderer in the list, make a container */
-
- if (renderer_list && renderer_list->next)
- {
- GailCell *container_cell;
-
- container = gail_container_cell_new ();
-
- container_cell = GAIL_CELL (container);
- gail_cell_initialise (container_cell,
- widget, ATK_OBJECT (gailview),
- i);
- /*
- * The GailTreeViewCellInfo 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 (gailview, tree_model, path, tv_col, container_cell);
- container_cell->refresh_index = refresh_cell_index;
- parent = ATK_OBJECT (container);
- }
- else
- parent = ATK_OBJECT (gailview);
-
- child = NULL;
-
- /*
- * Now we make a fake cell_renderer if there is no cell in renderer_list
- */
-
- if (renderer_list == NULL)
- {
- GtkCellRenderer *fake_renderer;
- fake_renderer = g_object_new (GTK_TYPE_CELL_RENDERER_TEXT, NULL);
- default_registry = atk_get_default_registry ();
- factory = atk_registry_get_factory (default_registry,
- G_OBJECT_TYPE (fake_renderer));
- child = atk_object_factory_create_accessible (factory,
- G_OBJECT (fake_renderer));
- cell = GAIL_CELL (child);
- renderer_cell = GAIL_RENDERER_CELL (child);
- renderer_cell->renderer = fake_renderer;
-
- /* Create the GailTreeViewCellInfo structure for this cell */
- cell_info_new (gailview, tree_model, path, tv_col, cell);
-
- gail_cell_initialise (cell,
- widget, parent,
- i);
-
- cell->refresh_index = refresh_cell_index;
-
- /* set state if it is expandable */
- if (is_expander)
- {
- set_cell_expandable (cell);
- if (is_expanded)
- gail_cell_add_state (cell,
- ATK_STATE_EXPANDED,
- FALSE);
- }
- } else {
- for (l = renderer_list; l; l = l->next)
- {
- renderer = GTK_CELL_RENDERER (l->data);
-
- if (GTK_IS_CELL_RENDERER_TEXT (renderer))
- g_object_get (G_OBJECT (renderer), "editable", &editable, NULL);
-
- default_registry = atk_get_default_registry ();
- factory = atk_registry_get_factory (default_registry,
- G_OBJECT_TYPE (renderer));
- child = atk_object_factory_create_accessible (factory,
- G_OBJECT (renderer));
- cell = GAIL_CELL (child);
- renderer_cell = GAIL_RENDERER_CELL (child);
-
- /* Create the GailTreeViewCellInfo structure for this cell */
- cell_info_new (gailview, tree_model, path, tv_col, cell);
-
- gail_cell_initialise (cell,
- widget, parent,
- i);
-
- if (container)
- gail_container_cell_add_child (container, cell);
- else
- cell->refresh_index = refresh_cell_index;
-
- update_cell_value (renderer_cell, gailview, FALSE);
- /* Add the actions appropriate for this cell */
- add_cell_actions (cell, editable);
-
- /* set state if it is expandable */
- if (is_expander)
- {
- set_cell_expandable (cell);
- if (is_expanded)
- gail_cell_add_state (cell,
- ATK_STATE_EXPANDED,
- FALSE);
- }
- /*
- * If the column is visible, sets the cell's state
- */
- if (gtk_tree_view_column_get_visible (tv_col))
- set_cell_visibility (tree_view, cell, tv_col, path, FALSE);
- /*
- * If the row is selected, all cells on the row are selected
- */
- selection = gtk_tree_view_get_selection (tree_view);
-
- if (gtk_tree_selection_path_is_selected (selection, path))
- gail_cell_add_state (cell, ATK_STATE_SELECTED, FALSE);
-
- gail_cell_add_state (cell, ATK_STATE_FOCUSABLE, FALSE);
- if (focus_index == i)
- {
- gailview->focus_cell = g_object_ref (cell);
- gail_cell_add_state (cell, ATK_STATE_FOCUSED, FALSE);
- g_signal_emit_by_name (gailview,
- "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 % gailview->n_cols);
- 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*
-gail_tree_view_ref_state_set (AtkObject *obj)
-{
- AtkStateSet *state_set;
- GtkWidget *widget;
-
- state_set = ATK_OBJECT_CLASS (gail_tree_view_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;
-}
-
-/* atkcomponent.h */
-
-static void
-atk_component_interface_init (AtkComponentIface *iface)
-{
- iface->ref_accessible_at_point = gail_tree_view_ref_accessible_at_point;
-}
-
-static AtkObject*
-gail_tree_view_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)
- /* State is defunct */
- 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, FALSE);
- index = get_index (tree_view, path, column);
- gtk_tree_path_free (path);
-
- return gail_tree_view_ref_child (ATK_OBJECT (component), index);
- }
- else
- {
- g_warning ("gail_tree_view_ref_accessible_at_point: gtk_tree_view_get_path_at_pos () failed\n");
- }
- return NULL;
-}
-
-/* atktable.h */
-
-static void
-atk_table_interface_init (AtkTableIface *iface)
-{
- iface->ref_at = gail_tree_view_table_ref_at;
- iface->get_n_rows = gail_tree_view_get_n_rows;
- iface->get_n_columns = gail_tree_view_get_n_columns;
- iface->get_index_at = gail_tree_view_get_index_at;
- iface->get_column_at_index = gail_tree_view_get_column_at_index;
- iface->get_row_at_index = gail_tree_view_get_row_at_index;
- iface->is_row_selected = gail_tree_view_is_row_selected;
- iface->is_selected = gail_tree_view_is_selected;
- iface->get_selected_rows = gail_tree_view_get_selected_rows;
- iface->add_row_selection = gail_tree_view_add_row_selection;
- iface->remove_row_selection = gail_tree_view_remove_row_selection;
- iface->get_column_extent_at = NULL;
- iface->get_row_extent_at = NULL;
- iface->get_column_header = gail_tree_view_get_column_header;
- iface->get_column_description = gail_tree_view_get_column_description;
-}
-
-static gint
-gail_tree_view_get_index_at (AtkTable *table,
- gint row,
- gint column)
-{
- GtkWidget *widget;
- GtkTreeView *tree_view;
- gint actual_column;
- gint n_cols, n_rows;
- GtkTreeIter iter;
- GtkTreePath *path;
- gint index;
-
- 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;
-
- widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (table));
- if (widget == NULL)
- /* State is defunct */
- return -1;
-
- tree_view = GTK_TREE_VIEW (widget);
- actual_column = get_actual_column_number (tree_view, column);
-
- set_iter_nth_row (tree_view, &iter, row);
- path = gtk_tree_model_get_path (gtk_tree_view_get_model (tree_view), &iter);
-
- index = get_index (tree_view, path, actual_column);
- gtk_tree_path_free (path);
-
- return index;
-}
-
-static gint
-gail_tree_view_get_column_at_index (AtkTable *table,
- gint index)
-{
- GtkWidget *widget;
- GtkTreeView *tree_view;
- gint n_columns;
-
- widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (table));
- if (widget == NULL)
- /* State is defunct */
- return -1;
-
- tree_view = GTK_TREE_VIEW (widget);
- n_columns = GAIL_TREE_VIEW (table)->n_cols;
-
- if (n_columns == 0)
- return 0;
- index = index % n_columns;
-
- return get_visible_column_number (tree_view, index);
-}
-
-static gint
-gail_tree_view_get_row_at_index (AtkTable *table,
- gint index)
-{
- GtkWidget *widget;
- GtkTreeView *tree_view;
- GtkTreePath *path;
-
- widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (table));
- if (widget == NULL)
- /* State is defunct */
- return -1;
-
- tree_view = GTK_TREE_VIEW (widget);
- if (get_path_column_from_index (tree_view, index, &path, NULL))
- {
- gint row = get_row_from_tree_path (tree_view, path);
- gtk_tree_path_free (path);
- return row;
- }
- else
- return -1;
-}
-
-static AtkObject*
-gail_tree_view_table_ref_at (AtkTable *table,
- gint row,
- gint column)
-{
- gint index;
-
- index = gail_tree_view_get_index_at (table, row, column);
- if (index == -1)
- return NULL;
-
- return gail_tree_view_ref_child (ATK_OBJECT (table), index);
-}
-
-static gint
-gail_tree_view_get_n_rows (AtkTable *table)
-{
- GtkWidget *widget;
- GtkTreeView *tree_view;
- GtkTreeModel *tree_model;
- gint n_rows;
-
- widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (table));
- if (widget == NULL)
- /* State is defunct */
- return 0;
-
- tree_view = GTK_TREE_VIEW (widget);
- tree_model = gtk_tree_view_get_model (tree_view);
-
- if (!tree_model)
- n_rows = 0;
- else if (gtk_tree_model_get_flags (tree_model) & GTK_TREE_MODEL_LIST_ONLY)
- /*
- * If working with a LIST store, then no rows are collapsed
- */
- n_rows = GAIL_TREE_VIEW (table)->n_rows;
- else
- {
- GtkTreePath *root_tree;
-
- n_rows = 0;
- root_tree = gtk_tree_path_new_first ();
- iterate_thru_children (tree_view, tree_model,
- root_tree, NULL, &n_rows, 0);
- gtk_tree_path_free (root_tree);
- }
-
- return n_rows;
-}
-
-static gint
-gail_tree_view_get_n_columns (AtkTable *table)
-{
- GtkWidget *widget;
- GtkTreeView *tree_view;
- GtkTreeViewColumn *tv_col;
- gint n_cols = 0;
- gint i = 0;
-
- widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (table));
- if (widget == NULL)
- /* State is defunct */
- return 0;
-
- tree_view = GTK_TREE_VIEW (widget);
- tv_col = gtk_tree_view_get_column (tree_view, i);
-
- while (tv_col != NULL)
- {
- if (gtk_tree_view_column_get_visible (tv_col))
- n_cols++;
-
- i++;
- tv_col = gtk_tree_view_get_column (tree_view, i);
- }
-
- return n_cols;
-}
-
-static gboolean
-gail_tree_view_is_row_selected (AtkTable *table,
- gint row)
-{
- GtkWidget *widget;
- GtkTreeView *tree_view;
- GtkTreeSelection *selection;
- GtkTreeIter iter;
-
- widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (table));
- if (widget == NULL)
- /* State is defunct */
- return FALSE;
-
- if (row < 0)
- return FALSE;
-
- tree_view = GTK_TREE_VIEW (widget);
-
- selection = gtk_tree_view_get_selection (tree_view);
-
- set_iter_nth_row (tree_view, &iter, row);
-
- return gtk_tree_selection_iter_is_selected (selection, &iter);
-}
-
-static gboolean
-gail_tree_view_is_selected (AtkTable *table,
- gint row,
- gint column)
-{
- return gail_tree_view_is_row_selected (table, row);
-}
-
-static gint
-gail_tree_view_get_selected_rows (AtkTable *table,
- gint **rows_selected)
-{
- GtkWidget *widget;
- GtkTreeView *tree_view;
- GtkTreeModel *tree_model;
- GtkTreeIter iter;
- GtkTreeSelection *selection;
- GtkTreePath *tree_path;
- gint ret_val = 0;
-
- widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (table));
- if (widget == NULL)
- /* State is defunct */
- return 0;
-
- tree_view = GTK_TREE_VIEW (widget);
-
- selection = gtk_tree_view_get_selection (tree_view);
-
- switch (gtk_tree_selection_get_mode (selection))
- {
- case GTK_SELECTION_SINGLE:
- case GTK_SELECTION_BROWSE:
- if (gtk_tree_selection_get_selected (selection, &tree_model, &iter))
- {
- gint row;
-
- if (rows_selected)
- {
- *rows_selected = (gint *)g_malloc (sizeof(gint));
- tree_path = gtk_tree_model_get_path (tree_model, &iter);
- row = get_row_from_tree_path (tree_view, tree_path);
- gtk_tree_path_free (tree_path);
-
- /* shouldn't ever happen */
- g_return_val_if_fail (row != -1, 0);
-
- *rows_selected[0] = row;
- }
- ret_val = 1;
- }
- break;
- case GTK_SELECTION_MULTIPLE:
- {
- GPtrArray *array = g_ptr_array_new();
-
- gtk_tree_selection_selected_foreach (selection,
- get_selected_rows,
- array);
- ret_val = array->len;
-
- if (rows_selected && ret_val)
- {
- gint i;
- *rows_selected = (gint *) g_malloc (ret_val * sizeof (gint));
-
- for (i = 0; i < ret_val; i++)
- {
- gint row;
-
- tree_path = (GtkTreePath *) g_ptr_array_index (array, i);
- row = get_row_from_tree_path (tree_view, tree_path);
- gtk_tree_path_free (tree_path);
- (*rows_selected)[i] = row;
- }
- }
- g_ptr_array_free (array, FALSE);
- }
- break;
- case GTK_SELECTION_NONE:
- break;
- }
- return ret_val;
-}
-
-static gboolean
-gail_tree_view_add_row_selection (AtkTable *table,
- gint row)
-{
- GtkWidget *widget;
- GtkTreeView *tree_view;
- GtkTreeModel *tree_model;
- GtkTreeSelection *selection;
- GtkTreePath *tree_path;
- GtkTreeIter iter_to_row;
-
- widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (table));
- if (widget == NULL)
- /* State is defunct */
- return FALSE;
-
- if (!gail_tree_view_is_row_selected (table, row))
- {
- tree_view = GTK_TREE_VIEW (widget);
- tree_model = gtk_tree_view_get_model (tree_view);
- selection = gtk_tree_view_get_selection (tree_view);
-
- if (gtk_tree_model_get_flags (tree_model) & GTK_TREE_MODEL_LIST_ONLY)
- {
- tree_path = gtk_tree_path_new ();
- gtk_tree_path_append_index (tree_path, row);
- gtk_tree_selection_select_path (selection,tree_path);
- gtk_tree_path_free (tree_path);
- }
- else
- {
- set_iter_nth_row (tree_view, &iter_to_row, row);
- gtk_tree_selection_select_iter (selection, &iter_to_row);
- }
- }
-
- return gail_tree_view_is_row_selected (table, row);
-}
-
-static gboolean
-gail_tree_view_remove_row_selection (AtkTable *table,
- gint row)
-{
- GtkWidget *widget;
- GtkTreeView *tree_view;
- GtkTreeSelection *selection;
-
- widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (table));
- if (widget == NULL)
- /* State is defunct */
- return FALSE;
-
- tree_view = GTK_TREE_VIEW (widget);
-
- selection = gtk_tree_view_get_selection (tree_view);
-
- if (gail_tree_view_is_row_selected (table, row))
- {
- gtk_tree_selection_unselect_all (selection);
- return TRUE;
- }
- else return FALSE;
-}
-
-static AtkObject*
-gail_tree_view_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)
- /* State is defunct */
- return NULL;
-
- tree_view = GTK_TREE_VIEW (widget);
- tv_col = get_column (tree_view, in_col);
- return get_header_from_column (tv_col);
-}
-
-static const gchar*
-gail_tree_view_get_column_description (AtkTable *table,
- gint in_col)
-{
- GtkWidget *widget;
- GtkTreeView *tree_view;
- GtkTreeViewColumn *tv_col;
- gchar *title_text;
-
- widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (table));
- if (widget == NULL)
- /* State is defunct */
- return NULL;
-
- tree_view = GTK_TREE_VIEW (widget);
- tv_col = get_column (tree_view, in_col);
- if (tv_col == NULL)
- return NULL;
-
- g_object_get (tv_col, "title", &title_text, NULL);
- return title_text;
-}
-
-/* atkselection.h */
-
-static void atk_selection_interface_init (AtkSelectionIface *iface)
-{
- iface->add_selection = gail_tree_view_add_selection;
- iface->clear_selection = gail_tree_view_clear_selection;
- iface->ref_selection = gail_tree_view_ref_selection;
- iface->get_selection_count = gail_tree_view_get_selection_count;
- iface->is_child_selected = gail_tree_view_is_child_selected;
-}
-
-static gboolean
-gail_tree_view_add_selection (AtkSelection *selection,
- gint i)
-{
- AtkTable *table;
- gint n_columns;
- gint row;
-
- table = ATK_TABLE (selection);
- n_columns = gail_tree_view_get_n_columns (table);
- if (n_columns != 1)
- return FALSE;
-
- row = gail_tree_view_get_row_at_index (table, i);
- return gail_tree_view_add_row_selection (table, row);
-}
-
-static gboolean
-gail_tree_view_clear_selection (AtkSelection *selection)
-{
- GtkWidget *widget;
- GtkTreeView *tree_view;
- GtkTreeSelection *tree_selection;
-
- widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (selection));
- if (widget == NULL)
- /* State is defunct */
- 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*
-gail_tree_view_ref_selection (AtkSelection *selection,
- gint i)
-{
- AtkTable *table;
- gint row;
- gint n_selected;
- gint n_columns;
- gint *selected;
-
- table = ATK_TABLE (selection);
- n_columns = gail_tree_view_get_n_columns (table);
- n_selected = gail_tree_view_get_selected_rows (table, &selected);
- if (i >= n_columns * n_selected)
- return NULL;
-
- row = selected[i / n_columns];
- g_free (selected);
-
- return gail_tree_view_table_ref_at (table, row, i % n_columns);
-}
-
-static gint
-gail_tree_view_get_selection_count (AtkSelection *selection)
-{
- AtkTable *table;
- gint n_selected;
-
- table = ATK_TABLE (selection);
- n_selected = gail_tree_view_get_selected_rows (table, NULL);
- if (n_selected > 0)
- n_selected *= gail_tree_view_get_n_columns (table);
- return n_selected;
-}
-
-static gboolean
-gail_tree_view_is_child_selected (AtkSelection *selection,
- gint i)
-{
- GtkWidget *widget;
- gint row;
-
- widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (selection));
- if (widget == NULL)
- /* State is defunct */
- return FALSE;
-
- row = atk_table_get_row_at_index (ATK_TABLE (selection), i);
-
- return gail_tree_view_is_row_selected (ATK_TABLE (selection), row);
-}
-
-
-static void gail_cell_parent_interface_init (GailCellParentIface *iface)
-{
- iface->get_cell_extents = gail_tree_view_get_cell_extents;
- iface->get_cell_area = gail_tree_view_get_cell_area;
- iface->grab_focus = gail_tree_view_grab_cell_focus;
-}
-
-static void
-gail_tree_view_get_cell_extents (GailCellParent *parent,
- GailCell *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)
- /* State is defunct */
- return;
-
- tree_view = GTK_TREE_VIEW (widget);
- gail_tree_view_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;
- }
-}
-
-#define EXTRA_EXPANDER_PADDING 4
-
-static void
-gail_tree_view_get_cell_area (GailCellParent *parent,
- GailCell *cell,
- GdkRectangle *cell_rect)
-{
- GtkWidget *widget;
- GtkTreeView *tree_view;
- GtkTreeViewColumn *tv_col;
- GtkTreePath *path;
- AtkObject *parent_cell;
- GailTreeViewCellInfo *cell_info;
- GailCell *top_cell;
-
- widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (parent));
- if (widget == NULL)
- /* State is defunct */
- return;
-
- tree_view = GTK_TREE_VIEW (widget);
- parent_cell = atk_object_get_parent (ATK_OBJECT (cell));
- if (parent_cell != ATK_OBJECT (parent))
- {
- /*
- * GailCell is in a GailContainerCell
- */
- top_cell = GAIL_CELL (parent_cell);
- }
- else
- {
- top_cell = cell;
- }
- cell_info = find_cell_info (GAIL_TREE_VIEW (parent), top_cell, TRUE);
- if (!cell_info || !cell_info->cell_col_ref || !cell_info->cell_row_ref)
- return;
- path = gtk_tree_row_reference_get_path (cell_info->cell_row_ref);
- tv_col = cell_info->cell_col_ref;
- if (path && cell_info->in_use)
- {
- 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 gboolean
-gail_tree_view_grab_cell_focus (GailCellParent *parent,
- GailCell *cell)
-{
- GtkWidget *widget;
- GtkTreeView *tree_view;
- GtkTreeViewColumn *tv_col;
- GtkTreePath *path;
- AtkObject *parent_cell;
- AtkObject *cell_object;
- GailTreeViewCellInfo *cell_info;
- GtkCellRenderer *renderer = NULL;
- GtkWidget *toplevel;
- gint index;
-
- widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (parent));
- if (widget == NULL)
- /* State is defunct */
- return FALSE;
-
- tree_view = GTK_TREE_VIEW (widget);
-
- cell_info = find_cell_info (GAIL_TREE_VIEW (parent), cell, TRUE);
- if (!cell_info || !cell_info->cell_col_ref || !cell_info->cell_row_ref)
- 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))
- {
- /*
- * GailCell is in a GailContainerCell.
- * The GtkTreeViewColumn has multiple renderers;
- * find the corresponding one.
- */
- GList *renderers;
-
- renderers = gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (tv_col));
- if (cell_info->in_use) {
- index = atk_object_get_index_in_parent (cell_object);
- renderer = g_list_nth_data (renderers, index);
- }
- g_list_free (renderers);
- }
- path = gtk_tree_row_reference_get_path (cell_info->cell_row_ref);
- if (path && cell_info->in_use)
- {
- 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;
-}
-
-/* signal handling */
-
-static gboolean
-gail_tree_view_expand_row_gtk (GtkTreeView *tree_view,
- GtkTreeIter *iter,
- GtkTreePath *path)
-{
- AtkObject *atk_obj;
- GailTreeView *gailview;
-
- g_assert (GTK_IS_TREE_VIEW (tree_view));
-
- atk_obj = gtk_widget_get_accessible (GTK_WIDGET (tree_view));
-
- g_assert (GAIL_IS_TREE_VIEW (atk_obj));
-
- gailview = GAIL_TREE_VIEW (atk_obj);
-
- /*
- * The visible rectangle has not been updated when this signal is emitted
- * so we process the signal when the GTK processing is completed
- */
- /* this seems wrong since it overwrites any other pending expand handlers... */
- gailview->idle_expand_path = gtk_tree_path_copy (path);
- if (gailview->idle_expand_id)
- g_source_remove (gailview->idle_expand_id);
- gailview->idle_expand_id = gdk_threads_add_idle (idle_expand_row, gailview);
- return FALSE;
-}
-
-static gint
-idle_expand_row (gpointer data)
-{
- GailTreeView *gailview = data;
- GtkTreePath *path;
- GtkTreeView *tree_view;
- GtkTreeIter iter;
- GtkTreeModel *tree_model;
- gint n_inserted, row;
-
- gailview->idle_expand_id = 0;
-
- path = gailview->idle_expand_path;
- tree_view = GTK_TREE_VIEW (gtk_accessible_get_widget (GTK_ACCESSIBLE (gailview)));
-
- g_assert (GTK_IS_TREE_VIEW (tree_view));
-
- tree_model = gtk_tree_view_get_model(tree_view);
- if (!tree_model)
- return FALSE;
-
- if (!path || !gtk_tree_model_get_iter (tree_model, &iter, path))
- return FALSE;
-
- /*
- * Update visibility of cells below expansion row
- */
- traverse_cells (gailview, path, FALSE, FALSE);
- /*
- * Figure out number of visible children, the following test
- * should not fail
- */
- if (gtk_tree_model_iter_has_child (tree_model, &iter))
- {
- GtkTreePath *path_copy;
-
- /*
- * By passing path into this function, we find the number of
- * visible children of path.
- */
- path_copy = gtk_tree_path_copy (path);
- gtk_tree_path_append_index(path_copy, 0);
-
- n_inserted = 0;
- iterate_thru_children (tree_view, tree_model,
- path_copy, NULL, &n_inserted, 0);
- gtk_tree_path_free (path_copy);
- }
- else
- {
- /* We can get here if the row expanded callback deleted the row */
- return FALSE;
- }
-
- /* Set expand state */
- set_expand_state (tree_view, tree_model, gailview, path, TRUE);
-
- row = get_row_from_tree_path (tree_view, path);
-
- /* shouldn't ever happen */
- if (row == -1)
- g_assert_not_reached ();
-
- /* Must add 1 because the "added rows" are below the row being expanded */
- row += 1;
-
- g_signal_emit_by_name (gailview, "row_inserted", row, n_inserted);
-
- gailview->idle_expand_path = NULL;
-
- gtk_tree_path_free (path);
-
- return FALSE;
-}
-
-static gboolean
-gail_tree_view_collapse_row_gtk (GtkTreeView *tree_view,
- GtkTreeIter *iter,
- GtkTreePath *path)
-{
- GtkTreeModel *tree_model;
- AtkObject *atk_obj = gtk_widget_get_accessible (GTK_WIDGET (tree_view));
- GailTreeView *gailview = GAIL_TREE_VIEW (atk_obj);
- gint row;
-
- tree_model = gtk_tree_view_get_model (tree_view);
-
- clean_rows (gailview);
-
- /*
- * Update visibility of cells below collapsed row
- */
- traverse_cells (gailview, path, FALSE, FALSE);
- /* Set collapse state */
- set_expand_state (tree_view, tree_model, gailview, path, FALSE);
- if (gailview->n_children_deleted == 0)
- return FALSE;
- row = get_row_from_tree_path (tree_view, path);
- if (row == -1)
- return FALSE;
- g_signal_emit_by_name (atk_obj, "row_deleted", row,
- gailview->n_children_deleted);
- gailview->n_children_deleted = 0;
- return FALSE;
-}
-
-static void
-gail_tree_view_size_allocate_gtk (GtkWidget *widget,
- GtkAllocation *allocation)
-{
- AtkObject *atk_obj = gtk_widget_get_accessible (widget);
- GailTreeView *gailview = GAIL_TREE_VIEW (atk_obj);
-
- /*
- * If the size allocation changes, the visibility of cells may change so
- * update the cells visibility.
- */
- traverse_cells (gailview, NULL, FALSE, FALSE);
-}
-
-static void
-gail_tree_view_changed_gtk (GtkTreeSelection *selection,
- gpointer data)
-{
- GailTreeView *gailview;
- GtkTreeView *tree_view;
- GtkWidget *widget;
- GailTreeViewCellInfo *info;
- GtkTreeSelection *tree_selection;
- GtkTreePath *path;
- GHashTableIter iter;
-
- gailview = GAIL_TREE_VIEW (data);
- widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (gailview));
- if (widget == NULL)
- /*
- * destroy signal emitted for widget
- */
- return;
- tree_view = GTK_TREE_VIEW (widget);
-
- tree_selection = gtk_tree_view_get_selection (tree_view);
-
- clean_rows (gailview);
-
- /* FIXME: clean rows iterates through all cells too */
- g_hash_table_iter_init (&iter, gailview->cell_info_by_index);
- while (g_hash_table_iter_next (&iter, NULL, (gpointer *)&info))
- {
- if (info->in_use)
- {
- gail_cell_remove_state (info->cell, ATK_STATE_SELECTED, TRUE);
-
- path = gtk_tree_row_reference_get_path (info->cell_row_ref);
- if (path && gtk_tree_selection_path_is_selected (tree_selection, path))
- gail_cell_add_state (info->cell, ATK_STATE_SELECTED, TRUE);
- gtk_tree_path_free (path);
- }
- }
- if (gtk_widget_get_realized (widget))
- g_signal_emit_by_name (gailview, "selection_changed");
-}
-
-static void
-columns_changed (GtkTreeView *tree_view)
-{
- AtkObject *atk_obj = gtk_widget_get_accessible (GTK_WIDGET(tree_view));
- GailTreeView *gailview = GAIL_TREE_VIEW (atk_obj);
- GList *tv_cols, *tmp_list;
- gboolean column_found;
- gboolean move_found = FALSE;
- gboolean stale_set = FALSE;
- gint column_count = 0;
- gint i;
-
- /*
- * This function must determine if the change is an add, delete or
- * a move based upon its cache of TreeViewColumns in
- * gailview->col_data
- */
- tv_cols = gtk_tree_view_get_columns (tree_view);
- gailview->n_cols = g_list_length (tv_cols);
-
- /* check for adds or moves */
- for (tmp_list = tv_cols; tmp_list; tmp_list = tmp_list->next)
- {
- column_found = FALSE;
-
- for (i = 0; i < gailview->col_data->len; i++)
- {
-
- if ((GtkTreeViewColumn *)tmp_list->data ==
- (GtkTreeViewColumn *)g_array_index (gailview->col_data,
- GtkTreeViewColumn *, i))
- {
- column_found = TRUE;
-
- /* If the column isn't in the same position, a move happened */
- if (!move_found && i != column_count)
- {
- if (!stale_set)
- {
- /* Set all rows to ATK_STATE_STALE */
- traverse_cells (gailview, NULL, TRUE, FALSE);
- stale_set = TRUE;
- }
-
- /* Just emit one column reordered signal when a move happens */
- g_signal_emit_by_name (atk_obj, "column_reordered");
- move_found = TRUE;
- }
-
- break;
- }
- }
-
- /*
- * If column_found is FALSE, then an insert happened for column
- * number column_count
- */
- if (!column_found)
- {
- gint row;
-
- if (!stale_set)
- {
- /* Set all rows to ATK_STATE_STALE */
- traverse_cells (gailview, NULL, TRUE, FALSE);
- stale_set = TRUE;
- }
-
- /* Generate column-inserted signal */
- g_signal_emit_by_name (atk_obj, "column_inserted", column_count, 1);
-
- /* Generate children-changed signals */
- for (row = 0; row < gailview->n_rows; row++)
- {
- /*
- * Pass NULL as the child object, i.e. 4th argument.
- */
- g_signal_emit_by_name (atk_obj, "children_changed::add",
- ((row * gailview->n_cols) + column_count), NULL, NULL);
- }
- }
-
- column_count++;
- }
-
- /* check for deletes */
- for (i = 0; i < gailview->col_data->len; i++)
- {
- column_found = FALSE;
-
- for (tmp_list = tv_cols; tmp_list; tmp_list = tmp_list->next)
- {
- if ((GtkTreeViewColumn *)tmp_list->data ==
- (GtkTreeViewColumn *)g_array_index (gailview->col_data,
- GtkTreeViewColumn *, i))
- {
- column_found = TRUE;
- break;
- }
- }
-
- /*
- * If column_found is FALSE, then a delete happened for column
- * number i
- */
- if (!column_found)
- {
- gint row;
-
- clean_cols (gailview,
- (GtkTreeViewColumn *)g_array_index (gailview->col_data,
- GtkTreeViewColumn *, i));
-
- if (!stale_set)
- {
- /* Set all rows to ATK_STATE_STALE */
- traverse_cells (gailview, NULL, TRUE, FALSE);
- stale_set = TRUE;
- }
-
- /* Generate column-deleted signal */
- g_signal_emit_by_name (atk_obj, "column_deleted", i, 1);
-
- /* Generate children-changed signals */
- for (row = 0; row < gailview->n_rows; row++)
- {
- /*
- * Pass NULL as the child object, 4th argument.
- */
- g_signal_emit_by_name (atk_obj, "children_changed::remove",
- ((row * gailview->n_cols) + column_count), NULL, NULL);
- }
- }
- }
-
- /* rebuild the array */
-
- g_array_free (gailview->col_data, TRUE);
- gailview->col_data = g_array_sized_new (FALSE, TRUE,
- sizeof(GtkTreeViewColumn *), 0);
-
- for (tmp_list = tv_cols; tmp_list; tmp_list = tmp_list->next)
- g_array_append_val (gailview->col_data, tmp_list->data);
- g_list_free (tv_cols);
-}
-
-static void
-cursor_changed (GtkTreeView *tree_view)
-{
- GailTreeView *gailview;
-
- gailview = GAIL_TREE_VIEW (gtk_widget_get_accessible (GTK_WIDGET (tree_view)));
- if (gailview->idle_cursor_changed_id != 0)
- return;
-
- /*
- * We notify the focus change in a idle handler so that the processing
- * of the cursor change is completed when the focus handler is called.
- * This will allow actions to be called in the focus handler
- */
- gailview->idle_cursor_changed_id = gdk_threads_add_idle (idle_cursor_changed, gailview);
-}
-
-static gint
-idle_cursor_changed (gpointer data)
-{
- GailTreeView *gail_tree_view = GAIL_TREE_VIEW (data);
- GtkTreeView *tree_view;
- GtkWidget *widget;
- AtkObject *cell;
-
- gail_tree_view->idle_cursor_changed_id = 0;
-
- widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (gail_tree_view));
- /*
- * Widget has been deleted
- */
- if (widget == NULL)
- return FALSE;
-
- tree_view = GTK_TREE_VIEW (widget);
-
- cell = gail_tree_view_ref_focus_cell (tree_view);
- if (cell)
- {
- if (cell != gail_tree_view->focus_cell)
- {
- if (gail_tree_view->focus_cell)
- {
- gail_cell_remove_state (GAIL_CELL (gail_tree_view->focus_cell), ATK_STATE_ACTIVE, FALSE);
- gail_cell_remove_state (GAIL_CELL (gail_tree_view->focus_cell), ATK_STATE_FOCUSED, FALSE);
- g_object_unref (gail_tree_view->focus_cell);
- }
- gail_tree_view->focus_cell = cell;
-
- if (gtk_widget_has_focus (widget))
- {
- gail_cell_add_state (GAIL_CELL (cell), ATK_STATE_ACTIVE, FALSE);
- gail_cell_add_state (GAIL_CELL (cell), ATK_STATE_FOCUSED, FALSE);
- }
- g_signal_emit_by_name (gail_tree_view,
- "active-descendant-changed",
- cell);
- }
- else
- g_object_unref (cell);
- }
-
- return FALSE;
-}
-
-static gboolean
-focus_in (GtkWidget *widget)
-{
- GtkTreeView *tree_view;
- GailTreeView *gail_tree_view;
- AtkStateSet *state_set;
- AtkObject *cell;
-
- tree_view = GTK_TREE_VIEW (widget);
- gail_tree_view = GAIL_TREE_VIEW (gtk_widget_get_accessible (widget));
-
- if (gail_tree_view->focus_cell == NULL)
- {
- cell = gail_tree_view_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))
- {
- gail_cell_add_state (GAIL_CELL (cell), ATK_STATE_ACTIVE, FALSE);
- gail_tree_view->focus_cell = cell;
- gail_cell_add_state (GAIL_CELL (cell), ATK_STATE_FOCUSED, FALSE);
- g_signal_emit_by_name (gail_tree_view,
- "active-descendant-changed",
- cell);
- }
- g_object_unref (state_set);
- }
- }
- }
- return FALSE;
-}
-
-static gboolean
-focus_out (GtkWidget *widget)
-{
- GailTreeView *gail_tree_view;
-
- gail_tree_view = GAIL_TREE_VIEW (gtk_widget_get_accessible (widget));
- if (gail_tree_view->focus_cell)
- {
- gail_cell_remove_state (GAIL_CELL (gail_tree_view->focus_cell), ATK_STATE_ACTIVE, FALSE);
- gail_cell_remove_state (GAIL_CELL (gail_tree_view->focus_cell), ATK_STATE_FOCUSED, FALSE);
- g_object_unref (gail_tree_view->focus_cell);
- gail_tree_view->focus_cell = NULL;
- }
- return FALSE;
-}
-
-static void
-model_row_changed (GtkTreeModel *tree_model,
- GtkTreePath *path,
- GtkTreeIter *iter,
- gpointer user_data)
-{
- GtkTreeView *tree_view = GTK_TREE_VIEW(user_data);
- GailTreeView *gailview;
- GtkTreePath *cell_path;
- GailTreeViewCellInfo *cell_info;
- GHashTableIter hash_iter;
-
- gailview = GAIL_TREE_VIEW (gtk_widget_get_accessible (GTK_WIDGET (tree_view)));
-
- /* Loop through our cached cells */
- /* Must loop through them all */
- g_hash_table_iter_init (&hash_iter, gailview->cell_info_by_index);
- while (g_hash_table_iter_next (&hash_iter, NULL, (gpointer *)&cell_info))
- {
- if (cell_info->in_use)
- {
- cell_path = gtk_tree_row_reference_get_path (cell_info->cell_row_ref);
-
- if (cell_path != NULL)
- {
- if (path && gtk_tree_path_compare (cell_path, path) == 0)
- {
- if (GAIL_IS_RENDERER_CELL (cell_info->cell))
- {
- update_cell_value (GAIL_RENDERER_CELL (cell_info->cell),
- gailview, TRUE);
- }
- }
- gtk_tree_path_free (cell_path);
- }
- }
- }
- g_signal_emit_by_name (gailview, "visible-data-changed");
-}
-
-static void
-column_visibility_changed (GObject *object,
- GParamSpec *pspec,
- gpointer user_data)
-{
- if (strcmp (pspec->name, "visible") == 0)
- {
- /*
- * A column has been made visible or invisible
- *
- * We update our cache of cells and emit model_changed signal
- */
- GtkTreeView *tree_view = (GtkTreeView *)user_data;
- GailTreeView *gailview;
- GailTreeViewCellInfo *cell_info;
- GtkTreeViewColumn *this_col = GTK_TREE_VIEW_COLUMN (object);
- GtkTreeViewColumn *tv_col;
- GHashTableIter iter;
-
- gailview = GAIL_TREE_VIEW (gtk_widget_get_accessible (GTK_WIDGET (tree_view))
-);
- g_signal_emit_by_name (gailview, "model_changed");
-
- g_hash_table_iter_init (&iter, gailview->cell_info_by_index);
- while (g_hash_table_iter_next (&iter, NULL, (gpointer *)&cell_info))
- {
- if (cell_info->in_use)
- {
- tv_col = cell_info->cell_col_ref;
- if (tv_col == this_col)
- {
- GtkTreePath *row_path;
- row_path = gtk_tree_row_reference_get_path (cell_info->cell_row_ref);
- if (GAIL_IS_RENDERER_CELL (cell_info->cell))
- {
- if (gtk_tree_view_column_get_visible (tv_col))
- set_cell_visibility (tree_view,
- cell_info->cell,
- tv_col, row_path, FALSE);
- else
- {
- gail_cell_remove_state (cell_info->cell,
- ATK_STATE_VISIBLE, TRUE);
- gail_cell_remove_state (cell_info->cell,
- ATK_STATE_SHOWING, TRUE);
- }
- }
- gtk_tree_path_free (row_path);
- }
- }
- }
- }
-}
-
-static void
-model_row_inserted (GtkTreeModel *tree_model,
- GtkTreePath *path,
- GtkTreeIter *iter,
- gpointer user_data)
-{
- GtkTreeView *tree_view = (GtkTreeView *)user_data;
- GtkTreePath *path_copy;
- AtkObject *atk_obj = gtk_widget_get_accessible (GTK_WIDGET (tree_view));
- GailTreeView *gailview = GAIL_TREE_VIEW (atk_obj);
- gint row, n_inserted, child_row;
-
- gailview->n_rows++;
-
- if (gailview->idle_expand_id)
- {
- g_source_remove (gailview->idle_expand_id);
- gailview->idle_expand_id = 0;
-
- /* don't do this if the insertion precedes the idle path, since it will now be invalid */
- if (path && gailview->idle_expand_path &&
- (gtk_tree_path_compare (path, gailview->idle_expand_path) > 0))
- set_expand_state (tree_view, tree_model, gailview, gailview->idle_expand_path, FALSE);
- if (gailview->idle_expand_path)
- gtk_tree_path_free (gailview->idle_expand_path);
- }
- /* Check to see if row is visible */
- row = get_row_from_tree_path (tree_view, path);
-
- /*
- * A row insert is not necessarily visible. For example,
- * a row can be draged & dropped into another row, which
- * causes an insert on the model that isn't visible in the
- * view. Only generate a signal if the inserted row is
- * visible.
- */
- if (row != -1)
- {
- GtkTreeIter iter;
- gint n_cols, col;
-
- gtk_tree_model_get_iter (tree_model, &iter, path);
-
- /* Figure out number of visible children. */
- if (gtk_tree_model_iter_has_child (tree_model, &iter))
- {
- /*
- * By passing path into this function, we find the number of
- * visible children of path.
- */
- n_inserted = 0;
- iterate_thru_children (tree_view, tree_model,
- path, NULL, &n_inserted, 0);
-
- /* Must add one to include the row that is being added */
- n_inserted++;
- }
- else
- n_inserted = 1;
-
- /* Set rows below the inserted row to ATK_STATE_STALE */
- traverse_cells (gailview, path, TRUE, TRUE);
-
- /* Generate row-inserted signal */
- g_signal_emit_by_name (atk_obj, "row_inserted", row, n_inserted);
-
- /* Generate children-changed signals */
- n_cols = gail_tree_view_get_n_columns (ATK_TABLE (atk_obj));
- for (child_row = row; child_row < (row + n_inserted); child_row++)
- {
- for (col = 0; col < n_cols; col++)
- {
- /*
- * Pass NULL as the child object, i.e. 4th argument
- */
- g_signal_emit_by_name (atk_obj, "children_changed::add",
- ((row * n_cols) + col), NULL, NULL);
- }
- }
- }
- else
- {
- /*
- * The row has been inserted inside another row. This can
- * cause a row that previously couldn't be expanded to now
- * be expandable.
- */
- path_copy = gtk_tree_path_copy (path);
- gtk_tree_path_up (path_copy);
- set_expand_state (tree_view, tree_model, gailview, path_copy, TRUE);
- gtk_tree_path_free (path_copy);
- }
-}
-
-static void
-model_row_deleted (GtkTreeModel *tree_model,
- GtkTreePath *path,
- gpointer user_data)
-{
- GtkTreeView *tree_view;
- GtkTreePath *path_copy;
- AtkObject *atk_obj;
- GailTreeView *gailview;
- gint row, col;
-
- tree_view = (GtkTreeView *)user_data;
- atk_obj = gtk_widget_get_accessible (GTK_WIDGET (tree_view));
- gailview = GAIL_TREE_VIEW (atk_obj);
-
- gailview->n_rows--;
- g_assert (gailview->n_rows >= 0);
-
- if (gailview->idle_expand_id)
- {
- g_source_remove (gailview->idle_expand_id);
- gtk_tree_path_free (gailview->idle_expand_path);
- gailview->idle_expand_id = 0;
- }
- /* Check to see if row is visible */
- clean_rows (gailview);
-
- /* Set rows at or below the specified row to ATK_STATE_STALE */
- traverse_cells (gailview, path, TRUE, TRUE);
-
- /*
- * If deleting a row with a depth > 1, then this may affect the
- * expansion/contraction of its parent(s). Make sure this is
- * handled.
- */
- if (gtk_tree_path_get_depth (path) > 1)
- {
- path_copy = gtk_tree_path_copy (path);
- gtk_tree_path_up (path_copy);
- set_expand_state (tree_view, tree_model, gailview, path_copy, TRUE);
- gtk_tree_path_free (path_copy);
- }
- row = get_row_from_tree_path (tree_view, path);
- /*
- * If the row which is deleted is not visible because it is a child of
- * a collapsed row then row will be -1
- */
- if (row > 0)
- g_signal_emit_by_name (atk_obj, "row_deleted", row,
- gailview->n_children_deleted + 1);
- gailview->n_children_deleted = 0;
-
- /* Generate children-changed signals */
- for (col = 0; col < gailview->n_cols; col++)
- {
- /*
- * Pass NULL as the child object, 4th argument.
- */
- g_signal_emit_by_name (atk_obj, "children_changed::remove",
- ((row * gailview->n_cols) + col), NULL, NULL);
- }
-}
-
-/*
- * This function gets called when a row is deleted or when rows are
- * removed from the view due to a collapse event. Note that the
- * count is the number of visible *children* of the deleted row,
- * so it does not include the row being deleted.
- *
- * As this function is called before the rows are removed we just note the
- * number of rows and then deal with it when we get a notification that
- * rows were deleted or collapsed.
- */
-static void
-destroy_count_func (GtkTreeView *tree_view,
- GtkTreePath *path,
- gint count,
- gpointer user_data)
-{
- AtkObject *atk_obj = gtk_widget_get_accessible (GTK_WIDGET (tree_view));
- GailTreeView *gailview = GAIL_TREE_VIEW (atk_obj);
-
- if (gailview->n_children_deleted != 0)
- return;
- gailview->n_children_deleted = count;
-}
-
-static void
-model_rows_reordered (GtkTreeModel *tree_model,
- GtkTreePath *path,
- GtkTreeIter *iter,
- gint *new_order,
- gpointer user_data)
-{
- GtkTreeView *tree_view = (GtkTreeView *)user_data;
- AtkObject *atk_obj = gtk_widget_get_accessible (GTK_WIDGET (tree_view));
- GailTreeView *gailview = GAIL_TREE_VIEW (atk_obj);
-
- if (gailview->idle_expand_id)
- {
- g_source_remove (gailview->idle_expand_id);
- gtk_tree_path_free (gailview->idle_expand_path);
- gailview->idle_expand_id = 0;
- }
- traverse_cells (gailview, NULL, TRUE, FALSE);
-
- g_signal_emit_by_name (atk_obj, "row_reordered");
-}
-
-static void
-adjustment_changed (GtkAdjustment *adjustment,
- GtkTreeView *tree_view)
-{
- AtkObject *atk_obj;
- GailTreeView* obj;
-
- /*
- * The scrollbars have changed
- */
- atk_obj = gtk_widget_get_accessible (GTK_WIDGET (tree_view));
- obj = GAIL_TREE_VIEW (atk_obj);
-
- traverse_cells (obj, NULL, FALSE, FALSE);
-}
-
-static void
-set_cell_visibility (GtkTreeView *tree_view,
- GailCell *cell,
- GtkTreeViewColumn *tv_col,
- GtkTreePath *tree_path,
- gboolean emit_signal)
-{
- GdkRectangle cell_rect;
-
- /* Get these three values in tree coords */
- if (gtk_widget_get_realized (GTK_WIDGET (tree_view)))
- gtk_tree_view_get_cell_area (tree_view, tree_path, tv_col, &cell_rect);
- else
- cell_rect.height = 0;
-
- if (cell_rect.height > 0)
- {
- /*
- * The height will be zero for a cell for which an antecedent is not
- * expanded
- */
- gail_cell_add_state (cell, ATK_STATE_VISIBLE, emit_signal);
- if (is_cell_showing (tree_view, &cell_rect))
- gail_cell_add_state (cell, ATK_STATE_SHOWING, emit_signal);
- else
- gail_cell_remove_state (cell, ATK_STATE_SHOWING, emit_signal);
- }
- else
- {
- gail_cell_remove_state (cell, ATK_STATE_VISIBLE, emit_signal);
- gail_cell_remove_state (cell, ATK_STATE_SHOWING, emit_signal);
- }
-}
-
-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
- * gail_tree_view_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 gboolean
-update_cell_value (GailRendererCell *renderer_cell,
- GailTreeView *gailview,
- gboolean emit_change_signal)
-{
- GailTreeViewCellInfo *cell_info;
- GtkTreeView *tree_view;
- GtkTreeModel *tree_model;
- GtkTreePath *path;
- GtkTreeIter iter;
- GList *renderers, *cur_renderer;
- GParamSpec *spec;
- GailRendererCellClass *gail_renderer_cell_class;
- GtkCellRendererClass *gtk_cell_renderer_class;
- GailCell *cell;
- gchar **prop_list;
- AtkObject *parent;
- gboolean is_expander, is_expanded;
-
- gail_renderer_cell_class = GAIL_RENDERER_CELL_GET_CLASS (renderer_cell);
- if (renderer_cell->renderer)
- gtk_cell_renderer_class = GTK_CELL_RENDERER_GET_CLASS (renderer_cell->renderer);
- else
- gtk_cell_renderer_class = NULL;
-
- prop_list = gail_renderer_cell_class->property_list;
-
- cell = GAIL_CELL (renderer_cell);
- cell_info = find_cell_info (gailview, cell, TRUE);
- if (!cell_info || !cell_info->cell_col_ref || !cell_info->cell_row_ref)
- return FALSE;
-
- if (emit_change_signal && cell_info->in_use)
- {
- tree_view = GTK_TREE_VIEW (gtk_accessible_get_widget (GTK_ACCESSIBLE (gailview)));
- tree_model = gtk_tree_view_get_model (tree_view);
- path = gtk_tree_row_reference_get_path (cell_info->cell_row_ref);
- if (path == NULL)
- return FALSE;
-
- 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);
- }
- renderers = gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (cell_info->cell_col_ref));
- if (!renderers)
- return FALSE;
-
- /*
- * If the cell is in a container, its index is used to find the renderer
- * in the list
- */
-
- /*
- * Otherwise, we assume that the cell is represented by the first renderer
- * in the list
- */
-
- if (cell_info->in_use) {
- parent = atk_object_get_parent (ATK_OBJECT (cell));
- if (!ATK_IS_OBJECT (cell)) g_on_error_query (NULL);
- if (GAIL_IS_CONTAINER_CELL (parent))
- cur_renderer = g_list_nth (renderers, cell->index);
- else
- cur_renderer = renderers;
- }
- else {
- return FALSE;
- }
-
- if (cur_renderer == NULL)
- return FALSE;
-
- if (gtk_cell_renderer_class)
- {
- while (*prop_list)
- {
- spec = g_object_class_find_property
- (G_OBJECT_CLASS (gtk_cell_renderer_class), *prop_list);
-
- if (spec != NULL)
- {
- GValue value = { 0, };
-
- g_value_init (&value, spec->value_type);
- g_object_get_property (cur_renderer->data, *prop_list, &value);
- g_object_set_property (G_OBJECT (renderer_cell->renderer),
- *prop_list, &value);
- g_value_unset(&value);
- }
- else
- g_warning ("Invalid property: %s\n", *prop_list);
- prop_list++;
- }
- }
- g_list_free (renderers);
- return gail_renderer_cell_update_cache (renderer_cell, emit_change_signal);
-}
-
-static void
-set_iter_nth_row (GtkTreeView *tree_view,
- GtkTreeIter *iter,
- gint row)
-{
- GtkTreeModel *tree_model;
-
- tree_model = gtk_tree_view_get_model (tree_view);
- gtk_tree_model_get_iter_first (tree_model, iter);
- iter = return_iter_nth_row (tree_view, tree_model, iter, 0 , row);
-}
-
-static gint
-get_row_from_tree_path (GtkTreeView *tree_view,
- GtkTreePath *path)
-{
- GtkTreeModel *tree_model;
- GtkTreePath *root_tree;
- gint row;
-
- tree_model = gtk_tree_view_get_model (tree_view);
-
- if (gtk_tree_model_get_flags (tree_model) & GTK_TREE_MODEL_LIST_ONLY)
- row = gtk_tree_path_get_indices (path)[0];
- else
- {
- root_tree = gtk_tree_path_new_first ();
- row = 0;
- iterate_thru_children (tree_view, tree_model, root_tree, path, &row, 0);
- gtk_tree_path_free (root_tree);
- }
-
- return row;
-}
-
-/* Misc Private */
-
-/*
- * Get the specified GtkTreeViewColumn in the GtkTreeView.
- * Only visible columns are considered.
- */
-static GtkTreeViewColumn*
-get_column (GtkTreeView *tree_view,
- gint in_col)
-{
- GtkTreeViewColumn *tv_col;
- gint n_cols = -1;
- gint i = 0;
-
- if (in_col < 0)
- {
- g_warning ("Request for invalid column %d\n", in_col);
- return NULL;
- }
-
- tv_col = gtk_tree_view_get_column (tree_view, i);
-
- while (tv_col != NULL)
- {
- if (gtk_tree_view_column_get_visible (tv_col))
- n_cols++;
- if (in_col == n_cols)
- break;
- tv_col = gtk_tree_view_get_column (tree_view, ++i);
- }
-
- if (in_col != n_cols)
- {
- g_warning ("Request for invalid column %d\n", in_col);
- return NULL;
- }
- return tv_col;
-}
-
-static gint
-get_actual_column_number (GtkTreeView *tree_view,
- gint visible_column)
-{
- GtkTreeViewColumn *tv_col;
- gint actual_column = 0;
- gint visible_columns = -1;
- /*
- * This function calculates the column number which corresponds to the
- * specified visible column number
- */
- tv_col = gtk_tree_view_get_column (tree_view, actual_column);
-
- while (tv_col != NULL)
- {
- if (gtk_tree_view_column_get_visible (tv_col))
- visible_columns++;
- if (visible_columns == visible_column)
- return actual_column;
- tv_col = gtk_tree_view_get_column (tree_view, ++actual_column);
- }
- g_warning ("get_actual_column_number failed for %d\n", visible_column);
- return -1;
-}
-
-static gint
-get_visible_column_number (GtkTreeView *tree_view,
- gint actual_column)
-{
- GtkTreeViewColumn *tv_col;
- gint column = 0;
- gint visible_columns = -1;
- /*
- * This function calculates the visible column number which corresponds to the
- * specified actual column number
- */
- tv_col = gtk_tree_view_get_column (tree_view, column);
-
- while (tv_col != NULL)
- {
- if (gtk_tree_view_column_get_visible (tv_col))
- {
- visible_columns++;
- if (actual_column == column)
- return visible_columns;
- }
- else
- if (actual_column == column)
- return -1;
- tv_col = gtk_tree_view_get_column (tree_view, ++column);
- }
- g_warning ("get_visible_column_number failed for %d\n", actual_column);
- return -1;
-}
-
-/**
- * Helper recursive function that returns GtkTreeIter pointer to nth row.
- **/
-static GtkTreeIter*
-return_iter_nth_row(GtkTreeView *tree_view,
- GtkTreeModel *tree_model,
- GtkTreeIter *iter,
- gint increment,
- gint row)
-{
- GtkTreePath *current_path = gtk_tree_model_get_path (tree_model, iter);
- GtkTreeIter new_iter;
- gboolean row_expanded;
-
- if (increment == row) {
- gtk_tree_path_free (current_path);
- return iter;
- }
-
- row_expanded = gtk_tree_view_row_expanded (tree_view, current_path);
- gtk_tree_path_free (current_path);
-
- new_iter = *iter;
- if ((row_expanded && gtk_tree_model_iter_children (tree_model, iter, &new_iter)) ||
- (gtk_tree_model_iter_next (tree_model, iter)) ||
- (gtk_tree_model_iter_parent (tree_model, iter, &new_iter) &&
- (gtk_tree_model_iter_next (tree_model, iter))))
- return return_iter_nth_row (tree_view, tree_model, iter,
- ++increment, row);
-
- return NULL;
-}
-
-/**
- * Recursively called until the row specified by orig is found.
- *
- * *count will be set to the visible row number of the child
- * relative to the row that was initially passed in as tree_path.
- *
- * *count will be -1 if orig is not found as a child (a row that is
- * not visible will not be found, e.g. if the row is inside a
- * collapsed row). If NULL is passed in as orig, *count will
- * be a count of the visible children.
- *
- * NOTE: the value for depth must be 0 when this recursive function
- * is initially called, or it may not function as expected.
- **/
-static void
-iterate_thru_children(GtkTreeView *tree_view,
- GtkTreeModel *tree_model,
- GtkTreePath *tree_path,
- GtkTreePath *orig,
- gint *count,
- gint depth)
-{
- GtkTreeIter iter;
-
- if (!gtk_tree_model_get_iter (tree_model, &iter, tree_path))
- return;
-
- if (tree_path && orig && !gtk_tree_path_compare (tree_path, orig))
- /* Found it! */
- return;
-
- if (tree_path && orig && gtk_tree_path_compare (tree_path, orig) > 0)
- {
- /* Past it, so return -1 */
- *count = -1;
- return;
- }
- else if (gtk_tree_view_row_expanded (tree_view, tree_path) &&
- gtk_tree_model_iter_has_child (tree_model, &iter))
- {
- (*count)++;
- gtk_tree_path_append_index (tree_path, 0);
- iterate_thru_children (tree_view, tree_model, tree_path,
- orig, count, (depth + 1));
- return;
- }
- else if (gtk_tree_model_iter_next (tree_model, &iter))
- {
- (*count)++;
- tree_path = gtk_tree_model_get_path (tree_model, &iter);
- if (tree_path)
- {
- iterate_thru_children (tree_view, tree_model, tree_path,
- orig, count, depth);
- gtk_tree_path_free (tree_path);
- }
- return;
- }
- else if (gtk_tree_path_up (tree_path))
- {
- GtkTreeIter temp_iter;
- gboolean exit_loop = FALSE;
- gint new_depth = depth - 1;
-
- (*count)++;
-
- /*
- * Make sure that we back up until we find a row
- * where gtk_tree_path_next does not return NULL.
- */
- while (!exit_loop)
- {
- if (gtk_tree_path_get_depth (tree_path) == 0)
- /* depth is now zero so */
- return;
- gtk_tree_path_next (tree_path);
-
- /* Verify that the next row is a valid row! */
- exit_loop = gtk_tree_model_get_iter (tree_model, &temp_iter, tree_path);
-
- if (!exit_loop)
- {
- /* Keep going up until we find a row that has a valid next */
- if (gtk_tree_path_get_depth(tree_path) > 1)
- {
- new_depth--;
- gtk_tree_path_up (tree_path);
- }
- else
- {
- /*
- * If depth is 1 and gtk_tree_model_get_iter returns FALSE,
- * then we are at the last row, so just return.
- */
- if (orig != NULL)
- *count = -1;
-
- return;
- }
- }
- }
-
- /*
- * This guarantees that we will stop when we hit the end of the
- * children.
- */
- if (new_depth < 0)
- return;
-
- iterate_thru_children (tree_view, tree_model, tree_path,
- orig, count, new_depth);
- return;
- }
-
- /*
- * If it gets here, then the path wasn't found. Situations
- * that would cause this would be if the path passed in is
- * invalid or contained within the last row, but not visible
- * because the last row is not expanded. If NULL was passed
- * in then a row count is desired, so only set count to -1
- * if orig is not NULL.
- */
- if (orig != NULL)
- *count = -1;
-
- return;
-}
-
-static void
-clean_cell_info (GailTreeView *gailview,
- GailTreeViewCellInfo *cell_info)
-{
- GObject *obj;
-
- g_assert (GAIL_IS_TREE_VIEW (gailview));
-
- if (cell_info->in_use) {
- obj = G_OBJECT (cell_info->cell);
-
- gail_cell_add_state (cell_info->cell, ATK_STATE_DEFUNCT, FALSE);
- g_object_weak_unref (obj, (GWeakNotify) cell_destroyed, cell_info);
- cell_info->in_use = FALSE;
- if (!gailview->garbage_collection_pending) {
- gailview->garbage_collection_pending = TRUE;
- g_assert (gailview->idle_garbage_collect_id == 0);
- gailview->idle_garbage_collect_id =
- gdk_threads_add_idle (idle_garbage_collect_cell_data, gailview);
- }
- }
-}
-
-static void
-clean_rows (GailTreeView *gailview)
-{
- GailTreeViewCellInfo *cell_info;
- GHashTableIter iter;
-
- /* Clean GailTreeViewCellInfo data */
- g_hash_table_iter_init (&iter, gailview->cell_info_by_index);
- while (g_hash_table_iter_next (&iter, NULL, (gpointer *)&cell_info))
- {
- GtkTreePath *row_path;
-
- row_path = gtk_tree_row_reference_get_path (cell_info->cell_row_ref);
- /*
- * If the cell has become invalid because the row has been removed,
- * then set the cell's state to ATK_STATE_DEFUNCT and schedule
- * its removal. If row_path is NULL then the row has
- * been removed.
- */
- if (row_path == NULL)
- {
- clean_cell_info (gailview, cell_info);
- }
- else
- {
- gtk_tree_path_free (row_path);
- }
- }
-}
-
-static void
-clean_cols (GailTreeView *gailview,
- GtkTreeViewColumn *tv_col)
-{
- GailTreeViewCellInfo *cell_info;
- GHashTableIter iter;
-
- /* Clean GailTreeViewCellInfo data */
- g_hash_table_iter_init (&iter, gailview->cell_info_by_index);
- while (g_hash_table_iter_next (&iter, NULL, (gpointer *) &cell_info))
- {
- /*
- * If the cell has become invalid because the column tv_col
- * has been removed, then set the cell's state to ATK_STATE_DEFUNCT
- * and remove the cell from gailview->cell_data.
- */
- if (cell_info->cell_col_ref == tv_col)
- {
- clean_cell_info (gailview, cell_info);
- }
- }
-}
-
-static gboolean
-idle_garbage_collect_cell_data (gpointer data)
-{
- GailTreeView *tree_view;
-
- g_assert (GAIL_IS_TREE_VIEW (data));
- tree_view = (GailTreeView *)data;
-
- /* this is the idle handler (only one instance allowed), so
- * we can safely delete it.
- */
- tree_view->garbage_collection_pending = FALSE;
- tree_view->idle_garbage_collect_id = 0;
-
- tree_view->garbage_collection_pending = garbage_collect_cell_data (data);
-
- /* N.B.: if for some reason another handler has re-enterantly been queued
- * while this handler was being serviced, it has its own gsource, therefore this handler
- * should always return FALSE.
- */
- return FALSE;
-}
-
-static gboolean
-garbage_collect_cell_data (gpointer data)
-{
- GailTreeView *tree_view;
- GailTreeViewCellInfo *cell_info;
- GHashTableIter iter;
-
- g_assert (GAIL_IS_TREE_VIEW (data));
- tree_view = (GailTreeView *)data;
-
- tree_view->garbage_collection_pending = FALSE;
- if (tree_view->idle_garbage_collect_id != 0)
- {
- g_source_remove (tree_view->idle_garbage_collect_id);
- tree_view->idle_garbage_collect_id = 0;
- }
-
- /* Must loop through them all */
- g_hash_table_iter_init (&iter, tree_view->cell_info_by_index);
- while (g_hash_table_iter_next (&iter, NULL, (gpointer *)&cell_info))
- {
- if (!cell_info->in_use)
- {
- /* g_object_unref (cell_info->cell); */
- if (cell_info->cell_row_ref)
- gtk_tree_row_reference_free (cell_info->cell_row_ref);
- g_free (cell_info);
- g_hash_table_iter_remove (&iter);
- }
- }
-
- return tree_view->garbage_collection_pending;
-}
-
-/**
- * If tree_path is passed in as NULL, then all cells are acted on.
- * Otherwise, just act on those cells that are on a row greater than
- * the specified tree_path. If inc_row is passed in as TRUE, then rows
- * greater and equal to the specified tree_path are acted on.
- *
- * if set_stale is set the ATK_STATE_STALE is set on cells which are to be
- * acted on.
- *
- * The function set_cell_visibility() is called on all cells to be
- * acted on to update the visibility of the cell.
- **/
-static void
-traverse_cells (GailTreeView *tree_view,
- GtkTreePath *tree_path,
- gboolean set_stale,
- gboolean inc_row)
-{
- GailTreeViewCellInfo *cell_info;
- GtkTreeView *gtk_tree_view;
- GtkWidget *widget;
- GHashTableIter iter;
-
- g_assert (GTK_IS_ACCESSIBLE (tree_view));
-
- widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (tree_view));
- if (!widget)
- /* Widget is being deleted */
- return;
-
- gtk_tree_view = GTK_TREE_VIEW (widget);
-
- /* Must loop through them all */
- g_hash_table_iter_init (&iter, tree_view->cell_info_by_index);
- while (g_hash_table_iter_next (&iter, NULL, (gpointer *)&cell_info))
- {
- GtkTreePath *row_path;
- gboolean act_on_cell;
-
- if (cell_info->in_use)
- {
- row_path = gtk_tree_row_reference_get_path (cell_info->cell_row_ref);
- g_return_if_fail (row_path != NULL);
- if (tree_path == NULL)
- act_on_cell = TRUE;
- else
- {
- gint comparison;
-
- comparison = gtk_tree_path_compare (row_path, tree_path);
- if ((comparison > 0) ||
- (comparison == 0 && inc_row))
- act_on_cell = TRUE;
- else
- act_on_cell = FALSE;
- }
- if (!cell_info->in_use) g_warning ("warning: cell info destroyed during traversal");
- if (act_on_cell && cell_info->in_use)
- {
- if (set_stale)
- gail_cell_add_state (cell_info->cell, ATK_STATE_STALE, TRUE);
- set_cell_visibility (gtk_tree_view,
- cell_info->cell,
- cell_info->cell_col_ref,
- row_path, TRUE);
- }
- gtk_tree_path_free (row_path);
- }
- }
-
- g_signal_emit_by_name (tree_view, "visible-data-changed");
-}
-
-/*
- * If the tree_path passed in has children, then
- * ATK_STATE_EXPANDABLE is set. If the row is expanded
- * ATK_STATE_EXPANDED is turned on. If the row is
- * collapsed, then ATK_STATE_EXPANDED is removed.
- *
- * If the tree_path passed in has no children, then
- * ATK_STATE_EXPANDABLE and ATK_STATE_EXPANDED are removed.
- *
- * If set_on_ancestor is TRUE, then this function will also
- * update all cells that are ancestors of the tree_path.
- */
-static void
-set_expand_state (GtkTreeView *tree_view,
- GtkTreeModel *tree_model,
- GailTreeView *gailview,
- GtkTreePath *tree_path,
- gboolean set_on_ancestor)
-{
- GtkTreeViewColumn *expander_tv;
- GailTreeViewCellInfo *cell_info;
- GtkTreePath *cell_path;
- GtkTreeIter iter;
- gboolean found;
- GHashTableIter hash_iter;
-
- g_hash_table_iter_init (&hash_iter, gailview->cell_info_by_index);
- while (g_hash_table_iter_next (&hash_iter, NULL, (gpointer *) &cell_info))
- {
- if (cell_info->in_use)
- {
- cell_path = gtk_tree_row_reference_get_path (cell_info->cell_row_ref);
- found = FALSE;
-
- if (cell_path != NULL)
- {
- GailCell *cell = GAIL_CELL (cell_info->cell);
-
- expander_tv = gtk_tree_view_get_expander_column (tree_view);
-
- /* Only set state for the cell that is in the column with the
- * expander toggle
- */
- if (expander_tv == cell_info->cell_col_ref)
- {
- if (tree_path && gtk_tree_path_compare (cell_path, tree_path) == 0)
- found = TRUE;
- else if (set_on_ancestor &&
- gtk_tree_path_get_depth (cell_path) <
- gtk_tree_path_get_depth (tree_path) &&
- gtk_tree_path_is_ancestor (cell_path, tree_path) == 1)
- /* Only set if set_on_ancestor was passed in as TRUE */
- found = TRUE;
- }
-
- /* Set ATK_STATE_EXPANDABLE and ATK_STATE_EXPANDED
- * for ancestors and found cells.
- */
- if (found)
- {
- /* Must check against cell_path since cell_path
- * can be equal to or an ancestor of tree_path.
- */
- gtk_tree_model_get_iter (tree_model, &iter, cell_path);
-
- /* Set or unset ATK_STATE_EXPANDABLE as appropriate */
- if (gtk_tree_model_iter_has_child (tree_model, &iter))
- {
- set_cell_expandable (cell);
-
- if (gtk_tree_view_row_expanded (tree_view, cell_path))
- gail_cell_add_state (cell, ATK_STATE_EXPANDED, TRUE);
- else
- gail_cell_remove_state (cell,
- ATK_STATE_EXPANDED, TRUE);
- }
- else
- {
- gail_cell_remove_state (cell,
- ATK_STATE_EXPANDED, TRUE);
- if (gail_cell_remove_state (cell,
- ATK_STATE_EXPANDABLE, TRUE))
- /* The state may have been propagated to the container cell */
- if (!GAIL_IS_CONTAINER_CELL (cell))
- gail_cell_remove_action_by_name (cell,
- "expand or contract");
- }
-
- /* We assume that each cell in the cache once and
- * a container cell is before its child cells so we are
- * finished if set_on_ancestor is not set to TRUE.
- */
- if (!set_on_ancestor)
- break;
- }
- }
- gtk_tree_path_free (cell_path);
- }
- }
-}
-
-
-static void
-add_cell_actions (GailCell *cell,
- gboolean editable)
-{
- if (GAIL_IS_BOOLEAN_CELL (cell))
- gail_cell_add_action (cell,
- "toggle",
- "toggles the cell", /* action description */
- NULL,
- toggle_cell_toggled);
- if (editable)
- gail_cell_add_action (cell,
- "edit",
- "creates a widget in which the contents of the cell can be edited",
- NULL,
- edit_cell);
- gail_cell_add_action (cell,
- "activate",
- "activate the cell",
- NULL,
- activate_cell);
-}
-
-static void
-toggle_cell_expanded (GailCell *cell)
-{
- GailTreeViewCellInfo *cell_info;
- GtkTreeView *tree_view;
- GtkTreePath *path;
- AtkObject *parent;
- AtkStateSet *stateset;
-
- parent = atk_object_get_parent (ATK_OBJECT (cell));
- if (GAIL_IS_CONTAINER_CELL (parent))
- parent = atk_object_get_parent (parent);
-
- cell_info = find_cell_info (GAIL_TREE_VIEW (parent), cell, TRUE);
- if (!cell_info || !cell_info->cell_col_ref || !cell_info->cell_row_ref)
- return;
-
- tree_view = GTK_TREE_VIEW (gtk_accessible_get_widget (GTK_ACCESSIBLE (parent)));
- path = gtk_tree_row_reference_get_path (cell_info->cell_row_ref);
- if (!path)
- return;
-
- stateset = atk_object_ref_state_set (ATK_OBJECT (cell));
- if (atk_state_set_contains_state (stateset, ATK_STATE_EXPANDED))
- gtk_tree_view_collapse_row (tree_view, path);
- else
- gtk_tree_view_expand_row (tree_view, path, TRUE);
- g_object_unref (stateset);
- gtk_tree_path_free (path);
- return;
-}
-
-static void
-toggle_cell_toggled (GailCell *cell)
-{
- GailTreeViewCellInfo *cell_info;
- GtkTreePath *path;
- gchar *pathstring;
- GList *renderers, *cur_renderer;
- AtkObject *parent;
- gboolean is_container_cell = FALSE;
-
- parent = atk_object_get_parent (ATK_OBJECT (cell));
- if (GAIL_IS_CONTAINER_CELL (parent))
- {
- is_container_cell = TRUE;
- parent = atk_object_get_parent (parent);
- }
-
- cell_info = find_cell_info (GAIL_TREE_VIEW (parent), cell, TRUE);
- if (!cell_info || !cell_info->cell_col_ref || !cell_info->cell_row_ref)
- return;
-
- path = gtk_tree_row_reference_get_path (cell_info->cell_row_ref);
- if (!path)
- return;
- pathstring = gtk_tree_path_to_string (path);
-
- renderers = gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (cell_info->cell_col_ref));
- if (!renderers)
- return;
-
- /*
- * if the cell is in a container, its index is used to find the
- * renderer in the list
- */
-
- if (is_container_cell)
- cur_renderer = g_list_nth (renderers, cell->index);
- else
- /*
- * Otherwise, we assume that the cell is represented by the first
- * renderer in the list
- */
- cur_renderer = renderers;
-
- if (!cur_renderer)
- return;
-
- g_signal_emit_by_name (cur_renderer->data, "toggled", pathstring);
- g_list_free (renderers);
- g_free (pathstring);
- gtk_tree_path_free (path);
- return;
-}
-
-static void
-edit_cell (GailCell *cell)
-{
- GailTreeViewCellInfo *cell_info;
- GtkTreeView *tree_view;
- GtkTreePath *path;
- AtkObject *parent;
-
- editing = TRUE;
- parent = atk_object_get_parent (ATK_OBJECT (cell));
- if (GAIL_IS_CONTAINER_CELL (parent))
- parent = atk_object_get_parent (parent);
-
- cell_info = find_cell_info (GAIL_TREE_VIEW (parent), cell, TRUE);
- if (!cell_info || !cell_info->cell_col_ref || !cell_info->cell_row_ref)
- return;
-
- tree_view = GTK_TREE_VIEW (gtk_accessible_get_widget (GTK_ACCESSIBLE (parent)));
- path = gtk_tree_row_reference_get_path (cell_info->cell_row_ref);
- if (!path)
- return;
- gtk_tree_view_set_cursor (tree_view, path, cell_info->cell_col_ref, TRUE);
- gtk_tree_path_free (path);
- return;
-}
-
-static void
-activate_cell (GailCell *cell)
-{
- GailTreeViewCellInfo *cell_info;
- GtkTreeView *tree_view;
- GtkTreePath *path;
- AtkObject *parent;
-
- editing = TRUE;
- parent = atk_object_get_parent (ATK_OBJECT (cell));
- if (GAIL_IS_CONTAINER_CELL (parent))
- parent = atk_object_get_parent (parent);
-
- cell_info = find_cell_info (GAIL_TREE_VIEW (parent), cell, TRUE);
- if (!cell_info || !cell_info->cell_col_ref || !cell_info->cell_row_ref)
- return;
-
- tree_view = GTK_TREE_VIEW (gtk_accessible_get_widget (GTK_ACCESSIBLE (parent)));
- path = gtk_tree_row_reference_get_path (cell_info->cell_row_ref);
- if (!path)
- return;
- gtk_tree_view_row_activated (tree_view, path, cell_info->cell_col_ref);
- gtk_tree_path_free (path);
- return;
-}
-
-static void
-cell_destroyed (gpointer data)
-{
- GailTreeViewCellInfo *cell_info = data;
-
- if (!cell_info)
- return;
- if (cell_info->in_use) {
- cell_info->in_use = FALSE;
-
- g_assert (GAIL_IS_TREE_VIEW (cell_info->view));
- if (!cell_info->view->garbage_collection_pending) {
- cell_info->view->garbage_collection_pending = TRUE;
- cell_info->view->idle_garbage_collect_id =
- gdk_threads_add_idle (idle_garbage_collect_cell_data, cell_info->view);
- }
- }
-}
-
-static void
-cell_info_get_index (GtkTreeView *tree_view,
- GailTreeViewCellInfo *info,
- gint *index)
-{
- GtkTreePath *path;
- gint column_number;
-
- path = gtk_tree_row_reference_get_path (info->cell_row_ref);
- if (!path)
- return;
-
- column_number = get_column_number (tree_view, info->cell_col_ref, FALSE);
- *index = get_index (tree_view, path, column_number);
- gtk_tree_path_free (path);
-}
-
-static void
-cell_info_new (GailTreeView *gailview,
- GtkTreeModel *tree_model,
- GtkTreePath *path,
- GtkTreeViewColumn *tv_col,
- GailCell *cell )
-{
- GailTreeViewCellInfo *cell_info;
-
- g_assert (GAIL_IS_TREE_VIEW (gailview));
-
- cell_info = g_new (GailTreeViewCellInfo, 1);
- cell_info->cell_row_ref = gtk_tree_row_reference_new (tree_model, path);
-
- cell_info->cell_col_ref = tv_col;
- cell_info->cell = cell;
- cell_info->in_use = TRUE; /* if we've created it, assume it's in use */
- cell_info->view = gailview;
- g_hash_table_insert (gailview->cell_info_by_index, &cell->index, cell_info);
-
- /* Setup weak reference notification */
-
- g_object_weak_ref (G_OBJECT (cell),
- (GWeakNotify) cell_destroyed,
- cell_info);
-}
-
-static GailCell*
-find_cell (GailTreeView *gailview,
- gint index)
-{
- GailTreeViewCellInfo *info;
- GailCell *retval = NULL;
-
- info = g_hash_table_lookup (gailview->cell_info_by_index, &index);
- if (info != NULL)
- retval = info->cell;
-
- return retval;
-}
-
-static void
-refresh_cell_index (GailCell *cell)
-{
- GailTreeViewCellInfo *info;
- AtkObject *parent;
- GtkTreeView *tree_view;
- GailTreeView *gailview;
- gint index;
-
- parent = atk_object_get_parent (ATK_OBJECT (cell));
- if (!GAIL_IS_TREE_VIEW (parent))
- return;
- gailview = GAIL_TREE_VIEW (parent);
-
- tree_view = GTK_TREE_VIEW (gtk_accessible_get_widget (GTK_ACCESSIBLE (parent)));
-
- /* Find this cell in the GailTreeView's cache */
-
- info = find_cell_info (gailview, cell, TRUE);
- if (!info)
- return;
-
- cell_info_get_index (tree_view, info, &index);
- cell->index = index;
- g_hash_table_insert (gailview->cell_info_by_index, &index, info);
-}
-
-static void
-get_selected_rows (GtkTreeModel *model,
- GtkTreePath *path,
- GtkTreeIter *iter,
- gpointer data)
-{
- GPtrArray *array = (GPtrArray *)data;
-
- g_ptr_array_add (array, gtk_tree_path_copy (path));
-}
-
-static void
-connect_model_signals (GtkTreeView *view,
- GailTreeView *gailview)
-{
- GObject *obj;
-
- obj = G_OBJECT (gailview->tree_model);
- g_signal_connect_data (obj, "row-changed",
- (GCallback) model_row_changed, view, NULL, 0);
- g_signal_connect_data (obj, "row-inserted",
- (GCallback) model_row_inserted, view, NULL,
- G_CONNECT_AFTER);
- g_signal_connect_data (obj, "row-deleted",
- (GCallback) model_row_deleted, view, NULL,
- G_CONNECT_AFTER);
- g_signal_connect_data (obj, "rows-reordered",
- (GCallback) model_rows_reordered, view, NULL,
- G_CONNECT_AFTER);
-}
-
-static void
-disconnect_model_signals (GailTreeView *view)
-{
- GObject *obj;
- GtkWidget *widget;
-
- obj = G_OBJECT (view->tree_model);
- widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (view));
- g_signal_handlers_disconnect_by_func (obj, (gpointer) model_row_changed, widget);
- g_signal_handlers_disconnect_by_func (obj, (gpointer) model_row_inserted, widget);
- g_signal_handlers_disconnect_by_func (obj, (gpointer) model_row_deleted, widget);
- g_signal_handlers_disconnect_by_func (obj, (gpointer) model_rows_reordered, widget);
-}
-
-static void
-clear_cached_data (GailTreeView *view)
-{
- GailTreeViewCellInfo *cell_info;
- GHashTableIter iter;
-
- /* Must loop through them all */
- g_hash_table_iter_init (&iter, view->cell_info_by_index);
- while (g_hash_table_iter_next (&iter, NULL, (gpointer *) &cell_info))
- {
- clean_cell_info (view, cell_info);
- }
-
- /* FIXME: seems pretty inefficient to loop again here */
- garbage_collect_cell_data (view);
-}
-
-/*
- * Returns the column number of the specified GtkTreeViewColumn
- *
- * If visible is set, the value returned will be the visible column number,
- * i.e. suitable for use in AtkTable function. If visible is not set, the
- * value returned is the actual column number, which is suitable for use in
- * getting an index value.
- */
-static gint
-get_column_number (GtkTreeView *tree_view,
- GtkTreeViewColumn *column,
- gboolean visible)
-{
- GtkTreeViewColumn *tv_column;
- gint ret_val;
- gint i;
- AtkObject *atk_obj;
- GailTreeView *gailview;
-
- atk_obj = gtk_widget_get_accessible (GTK_WIDGET (tree_view));
- gailview = GAIL_TREE_VIEW (atk_obj);
-
- ret_val = 0;
- for (i = 0; i < gailview->col_data->len; i++)
- {
- tv_column = g_array_index (gailview->col_data, GtkTreeViewColumn *, i);
- if (tv_column == column)
- break;
- if (!visible || gtk_tree_view_column_get_visible (tv_column))
- ret_val++;
- }
- if (i == gailview->col_data->len)
- {
- ret_val = -1;
- }
-
- return ret_val;
-}
-
-static gint
-get_index (GtkTreeView *tree_view,
- GtkTreePath *path,
- gint actual_column)
-{
- AtkObject *atk_obj;
- GailTreeView *gailview;
- gint depth = 0;
- gint index = 1;
- gint *indices = NULL;
-
- atk_obj = gtk_widget_get_accessible (GTK_WIDGET (tree_view));
- gailview = GAIL_TREE_VIEW (atk_obj);
-
- 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 *= gailview->n_cols;
- 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 0
- g_print ("count_rows : %d level: %d depth: %d\n", *count, level, depth);
- if (iter != NULL)
- g_print ("path: %s\n",
- gtk_tree_path_to_string (gtk_tree_model_get_path (model, iter)));
-#endif
-
- 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);
- }
- }
-}
-
-/*
- * Find the next node, which has children, at the specified depth below
- * the specified iter. The level is the depth of the current iter.
- * The position of the node is returned in path and the return value of TRUE
- * means that a node was found.
- */
-
-gboolean get_next_node_with_child_at_depth (GtkTreeModel *model,
- GtkTreeIter *iter,
- GtkTreePath **path,
- gint level,
- gint depth)
-{
- GtkTreeIter child_iter;
-
- *path = NULL;
-
- if (gtk_tree_model_iter_children (model, &child_iter, iter))
- {
- level++;
-
- while (TRUE)
- {
- while (!gtk_tree_model_iter_has_child (model, &child_iter))
- {
- if (!gtk_tree_model_iter_next (model, &child_iter))
- return FALSE;
- }
-
- if (level == depth)
- /* We have found what we were looking for */
- {
- *path = gtk_tree_model_get_path (model, &child_iter);
- return TRUE;
- }
-
- if (get_next_node_with_child_at_depth (model, &child_iter, path,
- level, depth))
- return TRUE;
-
- if (!gtk_tree_model_iter_next (model, &child_iter))
- return FALSE;
- }
- }
- return FALSE;
-}
-
-/*
- * Find the next node, which has children, at the same depth as
- * the specified GtkTreePath.
- */
-static gboolean
-get_next_node_with_child (GtkTreeModel *model,
- GtkTreePath *path,
- GtkTreePath **return_path)
-{
- GtkTreeIter iter;
- gint depth;
-
- gtk_tree_model_get_iter (model, &iter, path);
-
- while (gtk_tree_model_iter_next (model, &iter))
- {
- if (gtk_tree_model_iter_has_child (model, &iter))
- {
- *return_path = gtk_tree_model_get_path (model, &iter);
- return TRUE;
- }
- }
- depth = gtk_tree_path_get_depth (path);
- while (gtk_tree_path_up (path))
- {
- if (gtk_tree_path_get_depth (path) == 0)
- break;
-
- gtk_tree_model_get_iter (model, &iter, path);
- while (gtk_tree_model_iter_next (model, &iter))
- if (get_next_node_with_child_at_depth (model, &iter, return_path,
- gtk_tree_path_get_depth (path), depth))
- return TRUE;
- }
- *return_path = NULL;
- return FALSE;
-}
-
-static gboolean
-get_tree_path_from_row_index (GtkTreeModel *model,
- gint row_index,
- GtkTreePath **tree_path)
-{
- GtkTreeIter iter;
- gint count;
- gint depth;
-
- count = gtk_tree_model_iter_n_children (model, NULL);
- if (count > row_index)
- {
- if (gtk_tree_model_iter_nth_child (model, &iter, NULL, row_index))
- {
- *tree_path = gtk_tree_model_get_path (model, &iter);
- return TRUE;
- }
- else
- return FALSE;
- }
- else
- row_index -= count;
-
- depth = 0;
- while (TRUE)
- {
- depth++;
-
- if (get_next_node_with_child_at_depth (model, NULL, tree_path, 0, depth))
- {
- GtkTreePath *next_path;
-
- while (TRUE)
- {
- gtk_tree_model_get_iter (model, &iter, *tree_path);
- count = gtk_tree_model_iter_n_children (model, &iter);
- if (count > row_index)
- {
- gtk_tree_path_append_index (*tree_path, row_index);
- return TRUE;
- }
- else
- row_index -= count;
-
- if (!get_next_node_with_child (model, *tree_path, &next_path))
- break;
-
- gtk_tree_path_free (*tree_path);
- *tree_path = next_path;
- }
- }
- else
- {
- g_warning ("Index value is too large\n");
- gtk_tree_path_free (*tree_path);
- *tree_path = NULL;
- return FALSE;
- }
- }
-}
-
-static gboolean
-get_path_column_from_index (GtkTreeView *tree_view,
- gint index,
- GtkTreePath **path,
- GtkTreeViewColumn **column)
-{
- GtkTreeModel *tree_model;
- AtkObject *atk_obj;
- GailTreeView *gailview;
-
- atk_obj = gtk_widget_get_accessible (GTK_WIDGET (tree_view));
- gailview = GAIL_TREE_VIEW (atk_obj);
-
- tree_model = gtk_tree_view_get_model (tree_view);
- if (gailview->n_cols == 0)
- return FALSE;
- /* First row is the column headers */
- index -= gailview->n_cols;
- if (index < 0)
- return FALSE;
-
- if (path)
- {
- gint row_index;
- gboolean retval;
-
- row_index = index / gailview->n_cols;
- retval = get_tree_path_from_row_index (tree_model, row_index, path);
- if (!retval)
- return FALSE;
- if (*path == NULL)
- return FALSE;
- }
-
- if (column)
- {
- *column = gtk_tree_view_get_column (tree_view, index % gailview->n_cols);
- if (*column == NULL)
- {
- if (path)
- gtk_tree_path_free (*path);
- return FALSE;
- }
- }
- return TRUE;
-}
-
-static void
-set_cell_expandable (GailCell *cell)
-{
- if (gail_cell_add_state (cell,
- ATK_STATE_EXPANDABLE,
- FALSE))
- gail_cell_add_action (cell,
- "expand or contract", /* action name */
- "expands or contracts the row in the tree view "
- "containing this cell", /* description */
- NULL, /* Keybinding */
- toggle_cell_expanded);
-}
-
-static GailTreeViewCellInfo*
-find_cell_info (GailTreeView *view,
- GailCell *cell,
- gboolean live_only)
-{
- GailTreeViewCellInfo *cell_info;
- GHashTableIter iter;
-
- /* Clean GailTreeViewCellInfo data */
- g_hash_table_iter_init (&iter, view->cell_info_by_index);
- while (g_hash_table_iter_next (&iter, NULL, (gpointer *) &cell_info))
- {
- if (cell_info->cell == cell && (!live_only || cell_info->in_use))
- return cell_info;
- }
- return NULL;
-}
-
-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;
-}
projects / ~andy / gtk / blobdiff