diff options
Diffstat (limited to 'a11y/e-table/gal-a11y-e-table-item.c')
| -rw-r--r-- | a11y/e-table/gal-a11y-e-table-item.c | 1433 |
1 files changed, 0 insertions, 1433 deletions
diff --git a/a11y/e-table/gal-a11y-e-table-item.c b/a11y/e-table/gal-a11y-e-table-item.c deleted file mode 100644 index 627735ba04..0000000000 --- a/a11y/e-table/gal-a11y-e-table-item.c +++ /dev/null @@ -1,1433 +0,0 @@ -/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ -/* - * Authors: - * Christopher James Lahey <clahey@ximian.com> - * Bolian Yin <bolian.yin@sun.com> - * - * Copyright (C) 2002 Ximian, Inc. - */ - -#include <config.h> -#include <string.h> -#include "gal-a11y-e-table-item.h" -#include "gal-a11y-e-cell-registry.h" -#include "gal-a11y-e-cell.h" -#include "gal-a11y-util.h" -#include <gal/e-table/e-table-subset.h> -#include <gal/e-table/e-table.h> -#include <gal/e-table/e-tree.h> - -#include <atk/atkobject.h> -#include <atk/atktable.h> -#include <atk/atkcomponent.h> -#include <atk/atkobjectfactory.h> -#include <atk/atkregistry.h> -#include <atk/atkgobjectaccessible.h> - -#define CS_CLASS(a11y) (G_TYPE_INSTANCE_GET_CLASS ((a11y), C_TYPE_STREAM, GalA11yETableItemClass)) -static GObjectClass *parent_class; -static AtkComponentIface *component_parent_iface; -static GType parent_type; -static gint priv_offset; -static GQuark quark_accessible_object = 0; -#define GET_PRIVATE(object) ((GalA11yETableItemPrivate *) (((char *) object) + priv_offset)) -#define PARENT_TYPE (parent_type) - -struct _GalA11yETableItemPrivate { - AtkObject *parent; - gint index_in_parent; - gint cols; - gint rows; - gpointer *cell_data; - int selection_change_id; - int cursor_change_id; - ETableCol ** columns; - ESelectionModel *selection; - GtkWidget *widget; -}; - -static gboolean gal_a11y_e_table_item_ref_selection (GalA11yETableItem *a11y, - ESelectionModel *selection); -static gboolean gal_a11y_e_table_item_unref_selection (GalA11yETableItem *a11y); - -static gpointer *eti_reinit_data (AtkTable *table, ETableItem *item); - -#if 0 -static void -unref_accessible (gpointer user_data, GObject *obj_loc) -{ - GalA11yETableItem *a11y = GAL_A11Y_E_TABLE_ITEM (user_data); - GET_PRIVATE (a11y)->item = NULL; - g_object_unref (a11y); -} -#endif - -inline static gint -view_to_model_row(ETableItem *eti, int row) -{ - if (eti->uses_source_model) { - ETableSubset *etss = E_TABLE_SUBSET(eti->table_model); - if (row >= 0 && row < etss->n_map) { - eti->row_guess = row; - return etss->map_table[row]; - } else - return -1; - } else - return row; -} - -inline static gint -view_to_model_col(ETableItem *eti, int col) -{ - ETableCol *ecol = e_table_header_get_column (eti->header, col); - return ecol ? ecol->col_idx : -1; -} - -inline static gint -model_to_view_row(ETableItem *eti, int row) -{ - int i; - if (row == -1) - return -1; - if (eti->uses_source_model) { - ETableSubset *etss = E_TABLE_SUBSET(eti->table_model); - if (eti->row_guess >= 0 && eti->row_guess < etss->n_map) { - if (etss->map_table[eti->row_guess] == row) { - return eti->row_guess; - } - } - for (i = 0; i < etss->n_map; i++) { - if (etss->map_table[i] == row) - return i; - } - return -1; - } else - return row; -} - -inline static gint -model_to_view_col(ETableItem *eti, int col) -{ - int i; - if (col == -1) - return -1; - for (i = 0; i < eti->cols; i++) { - ETableCol *ecol = e_table_header_get_column (eti->header, i); - if (ecol->col_idx == col) - return i; - } - return -1; -} - -inline static GObject * -eti_a11y_get_gobject (AtkObject *accessible) -{ - return atk_gobject_accessible_get_object (ATK_GOBJECT_ACCESSIBLE (accessible)); -} - -static void -eti_dispose (GObject *object) -{ - GalA11yETableItem *a11y = GAL_A11Y_E_TABLE_ITEM (object); - GalA11yETableItemPrivate *priv = GET_PRIVATE (a11y); - - priv->parent = NULL; - - if ( priv->cell_data != NULL ) { - g_free(priv->cell_data); - priv->cell_data = NULL; - } - - if (priv->columns) { - g_free(priv->columns); - priv->columns = NULL; - } - - if (parent_class->dispose) - parent_class->dispose (object); - if (priv->selection) - gal_a11y_e_table_item_unref_selection (a11y); -} - -/* Static functions */ -static AtkObject * -eti_get_parent (AtkObject *accessible) -{ - GalA11yETableItem *a11y; - - g_return_val_if_fail (GAL_A11Y_IS_E_TABLE_ITEM (accessible), NULL); - if (!eti_a11y_get_gobject (accessible)) - /* defunct */ - return NULL; - - a11y = GAL_A11Y_E_TABLE_ITEM (accessible); - return GET_PRIVATE (a11y)->parent; -} - -static gint -eti_get_n_children (AtkObject *accessible) -{ - g_return_val_if_fail (GAL_A11Y_IS_E_TABLE_ITEM (accessible), 0); - if (!eti_a11y_get_gobject (accessible)) - return 0; - - return atk_table_get_n_columns (ATK_TABLE (accessible)) * - atk_table_get_n_rows (ATK_TABLE (accessible)); -} - -static AtkObject* -eti_ref_child (AtkObject *accessible, gint index) -{ - ETableItem *item; - gint col, row; - - g_return_val_if_fail (GAL_A11Y_IS_E_TABLE_ITEM (accessible), NULL); - item = E_TABLE_ITEM (eti_a11y_get_gobject (accessible)); - if (!item) - return NULL; - - if (index < item->cols) { - AtkObject *child; - - /* A column header is required */ - child = atk_table_get_column_header (ATK_TABLE (accessible), index); - if (child) - g_object_ref (child); - return child; - } - - index -= item->cols; - col = index % item->cols; - row = index / item->cols; - - return atk_table_ref_at (ATK_TABLE (accessible), row, col); -} - -static gint -eti_get_index_in_parent (AtkObject *accessible) -{ - GalA11yETableItem *a11y; - - g_return_val_if_fail (GAL_A11Y_IS_E_TABLE_ITEM (accessible), -1); - if (!eti_a11y_get_gobject (accessible)) - return -1; - - a11y = GAL_A11Y_E_TABLE_ITEM (accessible); - return GET_PRIVATE (a11y)->index_in_parent; -} - -static void -eti_get_extents (AtkComponent *component, - gint *x, - gint *y, - gint *width, - gint *height, - AtkCoordType coord_type) -{ - ETableItem *item; - double real_width; - double real_height; - int fake_width; - int fake_height; - - item = E_TABLE_ITEM (eti_a11y_get_gobject (ATK_OBJECT (component))); - if (!item) - return; - - if (component_parent_iface && - component_parent_iface->get_extents) - component_parent_iface->get_extents (component, - x, - y, - &fake_width, - &fake_height, - coord_type); - - gtk_object_get (GTK_OBJECT (item), - "width", &real_width, - "height", &real_height, - NULL); - - if (width) - *width = real_width; - if (height) - *height = real_height; -} - -static AtkObject* -eti_ref_accessible_at_point (AtkComponent *component, - gint x, - gint y, - AtkCoordType coord_type) -{ - int row = -1; - int col = -1; - int x_origin, y_origin; - ETableItem *item; - - item = E_TABLE_ITEM (eti_a11y_get_gobject (ATK_OBJECT (component))); - if (!item) - return NULL; - - atk_component_get_position (component, - &x_origin, - &y_origin, - coord_type); - x -= x_origin; - y -= y_origin; - - e_table_item_compute_location (item, &x, &y, - &row, &col); - - if (row != -1 && col != -1) { - return atk_table_ref_at (ATK_TABLE (component), row, col); - } else { - return NULL; - } -} - - -static void -cell_destroyed (gpointer data) -{ - gint index; - GalA11yETableItem * item; - GalA11yECell * cell; - - g_return_if_fail (GAL_A11Y_IS_E_CELL (data)); - cell = GAL_A11Y_E_CELL (data); - - item = GAL_A11Y_E_TABLE_ITEM (atk_gobject_accessible_for_object (G_OBJECT (GAL_A11Y_E_CELL(data)->item))); - - g_return_if_fail (item && GAL_A11Y_IS_E_TABLE_ITEM (item)); - - g_return_if_fail (cell->row < GET_PRIVATE(item)->rows && cell->view_col < GET_PRIVATE(item)->cols); - - index = cell->row * cell->item->cols + cell->view_col; - - if (GET_PRIVATE (item)->cell_data && GET_PRIVATE (item)->cell_data [index] == data) - GET_PRIVATE (item)->cell_data [index] = NULL; -} - -/* atk table */ -static AtkObject* -eti_ref_at (AtkTable *table, gint row, gint column) -{ - ETableItem *item; - AtkObject* ret; - - item = E_TABLE_ITEM (eti_a11y_get_gobject (ATK_OBJECT (table))); - if (!item) - return NULL; - - if (column >= 0 && - column < item->cols && - row >= 0 && - row < item->rows && - item->cell_views_realized) { - ECellView *cell_view = item->cell_views[column]; - ETableCol *ecol = e_table_header_get_column (item->header, column); - gpointer * cell_data; - - cell_data = eti_reinit_data (table, item); - if (cell_data == NULL) - return NULL; - - if (cell_data[row*item->cols + column] == NULL) { - ret = gal_a11y_e_cell_registry_get_object (NULL, - item, - cell_view, - ATK_OBJECT (table), - ecol->col_idx, - column, - row); - cell_data[row*item->cols + column] = ret; - if (ATK_IS_OBJECT (ret)) { - gal_a11y_e_cell_add_state(ret, ATK_STATE_SHOWING, FALSE); - gal_a11y_e_cell_add_state(ret, ATK_STATE_VISIBLE, FALSE); - g_object_weak_ref (G_OBJECT (ret), - (GWeakNotify) cell_destroyed, - ret); - } else - ret = NULL; - } else { - ret = (AtkObject *) cell_data[row*item->cols + column]; - if (ATK_IS_OBJECT (ret)) { - g_object_ref (ret); - } else { - ret = NULL; - } - } - - - return ret; - } - - return NULL; -} - -static gint -eti_get_index_at (AtkTable *table, gint row, gint column) -{ - ETableItem *item; - - item = E_TABLE_ITEM (eti_a11y_get_gobject (ATK_OBJECT (table))); - if (!item) - return -1; - - return column + row * item->cols; -} - -static gint -eti_get_column_at_index (AtkTable *table, gint index) -{ - ETableItem *item; - - item = E_TABLE_ITEM (eti_a11y_get_gobject (ATK_OBJECT (table))); - if (!item) - return -1; - - return index % item->cols; -} - -static gint -eti_get_row_at_index (AtkTable *table, gint index) -{ - ETableItem *item; - - item = E_TABLE_ITEM (eti_a11y_get_gobject (ATK_OBJECT (table))); - if (!item) - return -1; - - return index / item->cols; -} - -static gint -eti_get_n_columns (AtkTable *table) -{ - ETableItem *item; - - item = E_TABLE_ITEM (eti_a11y_get_gobject (ATK_OBJECT (table))); - if (!item) - return -1; - - return item->cols; -} - -static gint -eti_get_n_rows (AtkTable *table) -{ - ETableItem *item; - - item = E_TABLE_ITEM (eti_a11y_get_gobject (ATK_OBJECT (table))); - if (!item) - return -1; - - return item->rows; -} - -static gint -eti_get_column_extent_at (AtkTable *table, - gint row, - gint column) -{ - ETableItem *item; - int width; - - item = E_TABLE_ITEM (eti_a11y_get_gobject (ATK_OBJECT (table))); - if (!item) - return -1; - - e_table_item_get_cell_geometry (item, - &row, - &column, - NULL, - NULL, - &width, - NULL); - - return width; -} - -static gint -eti_get_row_extent_at (AtkTable *table, - gint row, - gint column) -{ - ETableItem *item; - int height; - - item = E_TABLE_ITEM (eti_a11y_get_gobject (ATK_OBJECT (table))); - if (!item) - return -1; - - e_table_item_get_cell_geometry (item, - &row, - &column, - NULL, - NULL, - NULL, - &height); - - return height; -} - -static AtkObject * -eti_get_caption (AtkTable *table) -{ - /* Unimplemented */ - return NULL; -} - -static G_CONST_RETURN gchar * -eti_get_column_description (AtkTable *table, - gint column) -{ - ETableItem *item; - ETableCol *ecol; - - item = E_TABLE_ITEM (eti_a11y_get_gobject (ATK_OBJECT (table))); - if (!item) - return NULL; - - ecol = e_table_header_get_column (item->header, column); - - return ecol->text; -} - -static AtkObject * -eti_get_column_header (AtkTable *table, gint column) -{ - ETableItem *item; - ETableCol *ecol; - AtkObject *atk_obj = NULL; - ECell *ecell; - - item = E_TABLE_ITEM (eti_a11y_get_gobject (ATK_OBJECT (table))); - if (!item) - return NULL; - - ecol = e_table_header_get_column (item->header, column); - ecell = ecol->ecell; - if (ecell) - atk_obj = atk_gobject_accessible_for_object (G_OBJECT (ecell)); - return atk_obj; -} - -static G_CONST_RETURN gchar * -eti_get_row_description (AtkTable *table, - gint row) -{ - /* Unimplemented */ - return NULL; -} - -static AtkObject * -eti_get_row_header (AtkTable *table, - gint row) -{ - /* Unimplemented */ - return NULL; -} - -static AtkObject * -eti_get_summary (AtkTable *table) -{ - /* Unimplemented */ - return NULL; -} - -static gboolean -table_is_row_selected (AtkTable *table, gint row) -{ - ETableItem *item; - - item = E_TABLE_ITEM (eti_a11y_get_gobject (ATK_OBJECT (table))); - if (!item) - return FALSE; - - return e_selection_model_is_row_selected(item->selection, row); -} - -static gboolean -table_is_selected (AtkTable *table, gint row, gint column) -{ - return table_is_row_selected (table, row); -} - -static gint -table_get_selected_rows (AtkTable *table, gint **rows_selected) -{ - ETableItem *item; - gint n_selected, row, index_selected; - - item = E_TABLE_ITEM (eti_a11y_get_gobject (ATK_OBJECT (table))); - if (!item) - return 0; - - n_selected = e_selection_model_selected_count (item->selection); - if (rows_selected) { - *rows_selected = (gint *) g_malloc (n_selected * sizeof (gint)); - - index_selected = 0; - for (row = 0; row < item->rows && index_selected < n_selected; ++row) { - if (atk_table_is_row_selected (table, row)) { - (*rows_selected)[index_selected] = row; - ++index_selected; - } - } - } - return n_selected; -} - -static gboolean -table_add_row_selection (AtkTable *table, gint row) -{ - ETableItem *item; - - item = E_TABLE_ITEM (eti_a11y_get_gobject (ATK_OBJECT (table))); - if (!item) - return FALSE; - - if (table_is_row_selected (table, row)) - return TRUE; - e_selection_model_toggle_single_row (item->selection, - view_to_model_row (item, row)); - - return TRUE; -} - -static gboolean -table_remove_row_selection (AtkTable *table, gint row) -{ - ETableItem *item; - - item = E_TABLE_ITEM (eti_a11y_get_gobject (ATK_OBJECT (table))); - if (!item) - return FALSE; - - if (!atk_table_is_row_selected (table, row)) - return TRUE; - e_selection_model_toggle_single_row (item->selection, row); - return TRUE; -} - -static void -eti_atk_table_iface_init (AtkTableIface *iface) -{ - iface->ref_at = eti_ref_at; - iface->get_index_at = eti_get_index_at; - iface->get_column_at_index = eti_get_column_at_index; - iface->get_row_at_index = eti_get_row_at_index; - iface->get_n_columns = eti_get_n_columns; - iface->get_n_rows = eti_get_n_rows; - iface->get_column_extent_at = eti_get_column_extent_at; - iface->get_row_extent_at = eti_get_row_extent_at; - iface->get_caption = eti_get_caption; - iface->get_column_description = eti_get_column_description; - iface->get_column_header = eti_get_column_header; - iface->get_row_description = eti_get_row_description; - iface->get_row_header = eti_get_row_header; - iface->get_summary = eti_get_summary; - - iface->is_row_selected = table_is_row_selected; - iface->is_selected = table_is_selected; - iface->get_selected_rows = table_get_selected_rows; - iface->add_row_selection = table_add_row_selection; - iface->remove_row_selection = table_remove_row_selection; -} - -static void -eti_atk_component_iface_init (AtkComponentIface *iface) -{ - component_parent_iface = g_type_interface_peek_parent (iface); - - iface->ref_accessible_at_point = eti_ref_accessible_at_point; - iface->get_extents = eti_get_extents; -} - -static void -eti_rows_inserted (ETableModel * model, int row, int count, - AtkObject * table_item) -{ - gint n_cols,n_rows,i,j; - gpointer *cell_data; - GalA11yETableItem * item_a11y; - gint old_nrows; - - g_return_if_fail (table_item); - item_a11y = GAL_A11Y_E_TABLE_ITEM (table_item); - - n_cols = atk_table_get_n_columns (ATK_TABLE(table_item)); - n_rows = atk_table_get_n_rows (ATK_TABLE(table_item)); - - old_nrows = GET_PRIVATE(item_a11y)->rows; - - g_return_if_fail (n_cols > 0 && n_rows > 0); - g_return_if_fail (old_nrows == n_rows - count); - - cell_data = GET_PRIVATE(table_item)->cell_data; - GET_PRIVATE(table_item)->cell_data = g_realloc (cell_data, (n_rows*n_cols) * sizeof(gpointer)); - cell_data = GET_PRIVATE(table_item)->cell_data; - - GET_PRIVATE(table_item)->rows = n_rows; - - /* If rows are insert in the middle of a table. */ - if (row + count < n_rows ) { - memmove(&cell_data[(row+count)*n_cols], &cell_data[row*n_cols], - (old_nrows-row)*n_cols*sizeof(gpointer)); - - /* Update cell's index. */ - for (i = row + count; i < n_rows; i ++) { - for (j = 0; j < n_cols; j ++) - if (cell_data[i*n_cols + j] != NULL) { - AtkObject * a11y; - - a11y = ATK_OBJECT(cell_data[i*n_cols + j]); - GAL_A11Y_E_CELL(a11y)->row = i; - } - } - } - - /* Clear cache for the new added rows. */ - for (i = row ; i < row+count; i ++) - for (j = 0 ; j < n_cols; j ++) - cell_data [i*n_cols + j] = NULL; - - g_signal_emit_by_name (table_item, "row-inserted", row, - count, NULL); - - for (i = row; i < (row + count); i ++) { - for (j = 0; j < n_cols; j ++) { - g_signal_emit_by_name (table_item, - "children_changed::add", - ( (i*n_cols) + j), NULL, NULL); - } - } - - g_signal_emit_by_name (table_item, "visible-data-changed"); -} - -/* - * reinit the eti's private data - * make sure it is synchronized with the gal-e-table-item - */ -static gpointer * -eti_reinit_data (AtkTable *table, ETableItem *item) -{ - gpointer * cell_data; - - int oldsize, newsize; - cell_data = GET_PRIVATE (table)->cell_data; - if (GET_PRIVATE (table)->rows != item->rows - || GET_PRIVATE (table)->cols != item->cols ) { /* reinit cell_data */ - oldsize = GET_PRIVATE (table)->cols * GET_PRIVATE (table)->rows; - newsize = item->cols*item->rows; - GET_PRIVATE (table)->cols = item->cols; - GET_PRIVATE (table)->rows = item->rows; - - cell_data = g_realloc(cell_data, newsize*sizeof(gpointer)); - if (newsize > oldsize) - memset(&cell_data[oldsize], 0, (newsize-oldsize)*sizeof(gpointer)); - - GET_PRIVATE (table)->cell_data = cell_data; - } - return cell_data; -} - -/* - * clear all the AtkObjects stored in the cell_data - * doesn't free the cell_data or resize it. - */ -static void -eti_clear_rows (ETableModel * model, AtkObject * table_item, int row, int count) -{ - gint i,j, n_rows, n_cols; - gpointer *cell_data; - - g_return_if_fail (model && table_item); - - cell_data = GET_PRIVATE (table_item)->cell_data; - g_return_if_fail (cell_data); - - n_rows = GET_PRIVATE (table_item)->rows; - n_cols = GET_PRIVATE (table_item)->cols; - - g_return_if_fail( row >= 0 && count > 0 && row+count <= n_rows); - - /* DEFUNCT the deleted cells. */ - for (i = row; i < row+count; i ++) { - for (j = 0; j < n_cols; j ++) { - if (cell_data[i*n_cols + j] != NULL) { - AtkObject * a11y; - - a11y = ATK_OBJECT(cell_data[i*n_cols + j]); - gal_a11y_e_cell_add_state (GAL_A11Y_E_CELL(a11y), ATK_STATE_DEFUNCT, TRUE); - cell_data[i*n_cols + j] = NULL; - } - } - } - - g_signal_emit_by_name (table_item, "row-deleted", row, - count, NULL); - - for (i = row; i < row+count; i ++) { - for (j = 0; j < n_cols; j ++) { - g_signal_emit_by_name (table_item, - "children_changed::remove", - ( (i*n_cols) + j), NULL, NULL); - } - } - g_signal_emit_by_name (table_item, "visible-data-changed"); -} - -static void -eti_rows_deleted (ETableModel * model, int row, int count, - AtkObject * table_item) -{ - gint i,j, n_rows, n_cols, old_nrows; - gpointer *cell_data; - - n_rows = atk_table_get_n_rows (ATK_TABLE(table_item)); - n_cols = atk_table_get_n_columns (ATK_TABLE(table_item)); - - cell_data = GET_PRIVATE(table_item)->cell_data; - old_nrows = GET_PRIVATE(table_item)->rows; - - g_return_if_fail ( row+count <= old_nrows); - g_return_if_fail (old_nrows == n_rows + count); - GET_PRIVATE(table_item)->rows = n_rows; - - /* DEFUNCT the deleted cells. */ - for (i = row; i < row+count; i ++) { - for (j = 0; j < n_cols; j ++) { - if (cell_data[i*n_cols + j] != NULL) { - AtkObject * a11y; - - a11y = ATK_OBJECT(cell_data[i*n_cols + j]); - gal_a11y_e_cell_add_state (GAL_A11Y_E_CELL(a11y), ATK_STATE_DEFUNCT, TRUE); - cell_data[i*n_cols + j] = NULL; - } - } - } - - /* If more rows left, update the a11y object. */ - if (old_nrows > row + count) { - - /* Remove the defunct cells in cache. */ - memmove (&cell_data[row*n_cols], &cell_data[(row+count)*n_cols], - ( old_nrows-row-count)*n_cols*sizeof(gpointer)); - - GET_PRIVATE(table_item)->cell_data = g_realloc (cell_data, n_rows*n_cols*sizeof(gpointer)); - cell_data = GET_PRIVATE(table_item)->cell_data; - - /* Update index of cells below the deleted rows. */ - for (i = row; i < n_rows; i ++) { - for (j = 0; j < n_cols; j ++) { - if (cell_data[i*n_cols + j] != NULL) { - AtkObject * a11y; - - a11y = ATK_OBJECT(cell_data[i*n_cols + j]); - GAL_A11Y_E_CELL(a11y)->row = i; - } - } - } - } - - g_signal_emit_by_name (table_item, "row-deleted", row, - count, NULL); - - for (i = row; i < (row + count); i ++) { - for (j = 0; j < n_cols; j ++) { - g_signal_emit_by_name (table_item, - "children_changed::remove", - ( (i*n_cols) + j), NULL, NULL); - } - } - g_signal_emit_by_name (table_item, "visible-data-changed"); -} - -static void -eti_tree_model_node_changed_cb (ETreeModel *model, ETreePath node, ETableItem *eti) -{ - AtkObject *atk_obj; - GalA11yETableItem *a11y; - - g_return_if_fail (E_IS_TABLE_ITEM (eti)); - - atk_obj = atk_gobject_accessible_for_object (G_OBJECT (eti)); - a11y = GAL_A11Y_E_TABLE_ITEM (atk_obj); - - /* we can't figure out which rows are changed, so just clear all of them ... */ - if (GET_PRIVATE (a11y)->rows > 0) - eti_clear_rows (eti->table_model, atk_obj, 0, GET_PRIVATE (a11y)->rows); -} - -enum { - ETI_HEADER_UNCHANGED = 0, - ETI_HEADER_REORDERED, - ETI_HEADER_NEW_ADDED, - ETI_HEADER_REMOVED, -}; - -/* - * 1. Check what actually happened: column reorder, remove or add - * 2. Update cache - * 3. Emit signals - */ -static void -eti_header_structure_changed (ETableHeader *eth, AtkObject *a11y) -{ - - gboolean reorder_found=FALSE, added_found=FALSE, removed_found=FALSE; - GalA11yETableItem * a11y_item; - ETableCol ** cols, **prev_cols; - GalA11yETableItemPrivate *priv; - gint *state = NULL, *prev_state = NULL, *reorder = NULL; - gint i,j,n_rows,n_cols, prev_n_cols; - gpointer * cell_data, * tmp; - - a11y_item = GAL_A11Y_E_TABLE_ITEM (a11y); - priv = GET_PRIVATE (a11y_item); - - g_return_if_fail (priv && priv->cell_data); - cell_data = priv->cell_data ; - - /* Assume rows do not changed. */ - n_rows = priv->rows; - - prev_n_cols = priv->cols; - prev_cols = priv->columns; - - cols = e_table_header_get_columns (eth); - n_cols = eth->col_count; - - g_return_if_fail (cols && prev_cols && n_cols > 0); - - /* Init to ETI_HEADER_UNCHANGED. */ - state = g_malloc0 (sizeof (gint) * n_cols); - prev_state = g_malloc0 (sizeof (gint) * prev_n_cols); - reorder = g_malloc0 (sizeof (gint) * n_cols); - - /* Compare with previously saved column headers. */ - for ( i = 0 ; i < n_cols && cols[i]; i ++ ) { - for ( j = 0 ; j < prev_n_cols && prev_cols[j]; j ++ ) { - if ( prev_cols [j] == cols[i] && i != j ) { - - reorder_found = TRUE; - state [i] = ETI_HEADER_REORDERED; - reorder [i] = j; - - break; - } else if (prev_cols[j] == cols[i]) { - /* OK, this column is not changed. */ - break; - } - } - - /* cols[i] is new added column. */ - if ( j == prev_n_cols ) { - added_found = TRUE; - state[i] = ETI_HEADER_NEW_ADDED; - } - } - - /* Now try to find if there are removed columns. */ - for (i = 0 ; i < prev_n_cols && prev_cols[i]; i ++) { - for (j = 0 ; j < n_cols && cols[j]; j ++) - if ( prev_cols [j] == cols[i] ) - break; - - /* Removed columns found. */ - if ( j == n_cols ) { - removed_found = TRUE; - prev_state[j] = ETI_HEADER_REMOVED; - } - } - - /* If nothing interesting just return. */ - if (!reorder_found && !added_found && !removed_found) - return; - - /* Now update our cache. */ - tmp = g_malloc0 (n_rows*n_cols*sizeof(gpointer)); - g_return_if_fail (tmp); - - for (i = 0 ; i < n_rows; i ++) { - for ( j = 0 ; j < n_cols; j ++ ) { - if ( state[j] == ETI_HEADER_REORDERED ) { - tmp [i*n_cols+j] = cell_data[i*prev_n_cols+reorder[j]]; - if (tmp[i*n_cols+j] && ATK_IS_OBJECT(tmp[i*n_cols+j])) { - GAL_A11Y_E_CELL(tmp[i*n_cols+j])->view_col = j; - } - } else if (state[j] == ETI_HEADER_UNCHANGED) { - tmp [i*n_cols+j] = cell_data[i*prev_n_cols+j]; - } /* else: new added, keep NULL. */ - } - } - - g_free (cell_data); - priv->cell_data = tmp; - - /* Emit signals */ - if (reorder_found) - g_signal_emit_by_name (G_OBJECT(a11y_item), "column_reordered"); - - - if (removed_found) { - for (i = 0; i < prev_n_cols; i ++ ) { - if (prev_state[i] == ETI_HEADER_REMOVED) { - g_signal_emit_by_name (G_OBJECT(a11y_item), "column-deleted", i, 1); - for (j = 0 ; j < n_rows; j ++) - g_signal_emit_by_name (G_OBJECT(a11y_item), "children_changed::remove", (j*prev_n_cols+i), NULL, NULL); - } - } - } - - if (added_found) { - for ( i = 0; i < n_cols; i ++ ) { - if (state[i] == ETI_HEADER_NEW_ADDED) { - g_signal_emit_by_name (G_OBJECT(a11y_item), "column-inserted", i, 1); - for (j = 0 ; j < n_rows; j ++) - g_signal_emit_by_name (G_OBJECT(a11y_item), "children_changed::add", (j*n_cols+i), NULL, NULL); - } - } - } - - priv->cols = n_cols; - - g_free (state); - g_free (reorder); - g_free (prev_state); - - g_free (priv->columns); - priv->columns = cols; -} - - -static void -eti_real_initialize (AtkObject *obj, - gpointer data) -{ - ETableItem * eti; - ETableModel * model; - - ATK_OBJECT_CLASS (parent_class)->initialize (obj, data); - eti = E_TABLE_ITEM (data); - - model = eti->table_model; - - g_signal_connect (model, "model-rows-inserted", - G_CALLBACK (eti_rows_inserted), - obj); - g_signal_connect (model, "model-rows-deleted", - G_CALLBACK (eti_rows_deleted), - obj); - g_signal_connect (G_OBJECT (eti->header), "structure_change", - G_CALLBACK (eti_header_structure_changed), obj); - -} - -static void -eti_class_init (GalA11yETableItemClass *klass) -{ - AtkObjectClass *atk_object_class = ATK_OBJECT_CLASS (klass); - GObjectClass *object_class = G_OBJECT_CLASS (klass); - - quark_accessible_object = g_quark_from_static_string ("gtk-accessible-object"); - - parent_class = g_type_class_ref (PARENT_TYPE); - - object_class->dispose = eti_dispose; - - atk_object_class->get_parent = eti_get_parent; - atk_object_class->get_n_children = eti_get_n_children; - atk_object_class->ref_child = eti_ref_child; - atk_object_class->get_index_in_parent = eti_get_index_in_parent; - atk_object_class->initialize = eti_real_initialize; -} - -static void -eti_init (GalA11yETableItem *a11y) -{ - GalA11yETableItemPrivate *priv; - - priv = GET_PRIVATE (a11y); - - priv->parent = NULL; - priv->index_in_parent = -1; - priv->selection_change_id = 0; - priv->cursor_change_id = 0; - priv->selection = NULL; -} - -/* atk selection */ - -static void atk_selection_interface_init (AtkSelectionIface *iface); -static gboolean selection_add_selection (AtkSelection *selection, - gint i); -static gboolean selection_clear_selection (AtkSelection *selection); -static AtkObject* selection_ref_selection (AtkSelection *selection, - gint i); -static gint selection_get_selection_count (AtkSelection *selection); -static gboolean selection_is_child_selected (AtkSelection *selection, - gint i); - -/* callbacks */ -static void eti_a11y_selection_model_removed_cb (ETableItem *eti, - ESelectionModel *selection, - gpointer data); -static void eti_a11y_selection_model_added_cb (ETableItem *eti, - ESelectionModel *selection, - gpointer data); -static void eti_a11y_selection_changed_cb (ESelectionModel *selection, - GalA11yETableItem *a11y); -static void eti_a11y_cursor_changed_cb (ESelectionModel *selection, - int row, int col, - GalA11yETableItem *a11y); - -/** - * gal_a11y_e_table_item_get_type: - * @void: - * - * Registers the &GalA11yETableItem class if necessary, and returns the type ID - * associated to it. - * - * Return value: The type ID of the &GalA11yETableItem class. - **/ -GType -gal_a11y_e_table_item_get_type (void) -{ - static GType type = 0; - - if (!type) { - AtkObjectFactory *factory; - - GTypeInfo info = { - sizeof (GalA11yETableItemClass), - (GBaseInitFunc) NULL, - (GBaseFinalizeFunc) NULL, - (GClassInitFunc) eti_class_init, - (GClassFinalizeFunc) NULL, - NULL, /* class_data */ - sizeof (GalA11yETableItem), - 0, - (GInstanceInitFunc) eti_init, - NULL /* value_table_item */ - }; - - static const GInterfaceInfo atk_component_info = { - (GInterfaceInitFunc) eti_atk_component_iface_init, - (GInterfaceFinalizeFunc) NULL, - NULL - }; - static const GInterfaceInfo atk_table_info = { - (GInterfaceInitFunc) eti_atk_table_iface_init, - (GInterfaceFinalizeFunc) NULL, - NULL - }; - - static const GInterfaceInfo atk_selection_info = { - (GInterfaceInitFunc) atk_selection_interface_init, - (GInterfaceFinalizeFunc) NULL, - NULL - }; - - - factory = atk_registry_get_factory (atk_get_default_registry (), GNOME_TYPE_CANVAS_ITEM); - parent_type = atk_object_factory_get_accessible_type (factory); - - type = gal_a11y_type_register_static_with_private (PARENT_TYPE, "GalA11yETableItem", &info, 0, - sizeof (GalA11yETableItemPrivate), &priv_offset); - - g_type_add_interface_static (type, ATK_TYPE_COMPONENT, &atk_component_info); - g_type_add_interface_static (type, ATK_TYPE_TABLE, &atk_table_info); - g_type_add_interface_static (type, ATK_TYPE_SELECTION, &atk_selection_info); - } - - return type; -} - -AtkObject * -gal_a11y_e_table_item_new (AtkObject *parent, - ETableItem *item, - int index_in_parent) -{ - GalA11yETableItem *a11y; - AtkObject *accessible; - int n; - - g_return_val_if_fail (item && item->cols >= 0 && item->rows >= 0, NULL); - a11y = g_object_new (gal_a11y_e_table_item_get_type (), NULL); - - atk_object_initialize (ATK_OBJECT (a11y), item); - - GET_PRIVATE (a11y)->parent = parent; - GET_PRIVATE (a11y)->index_in_parent = index_in_parent; - - accessible = ATK_OBJECT(a11y); - accessible->role = ATK_ROLE_TREE_TABLE; - - /* Initialize cell data. */ - n = item->cols * item->rows; - GET_PRIVATE (a11y)->cols = item->cols; - GET_PRIVATE (a11y)->rows = item->rows; - if (n > 0) { - GET_PRIVATE (a11y)->cell_data = g_malloc0(n*sizeof(gpointer)); - /* memory error. */ - if ( GET_PRIVATE (a11y)->cell_data == NULL) - return NULL; - } else - GET_PRIVATE (a11y)->cell_data = NULL; - - - GET_PRIVATE (a11y)->columns = e_table_header_get_columns (item->header); - if ( GET_PRIVATE (a11y)->columns == NULL) - return NULL; - - if (item) { - g_signal_connect (G_OBJECT(item), "selection_model_removed", - G_CALLBACK (eti_a11y_selection_model_removed_cb), NULL); - g_signal_connect (G_OBJECT(item), "selection_model_added", - G_CALLBACK (eti_a11y_selection_model_added_cb), NULL); - if (item->selection) - gal_a11y_e_table_item_ref_selection (a11y, - item->selection); - - /* find the TableItem's parent: table or tree */ - GET_PRIVATE (a11y)->widget = gtk_widget_get_parent (GTK_WIDGET (item->parent.canvas)); - if (E_IS_TREE (GET_PRIVATE (a11y)->widget)) { - ETreeModel *model; - model = e_tree_get_model (E_TREE (GET_PRIVATE (a11y)->widget)); - g_signal_connect (G_OBJECT(model), "node_changed", - G_CALLBACK (eti_tree_model_node_changed_cb), item); - } - } - if (parent) - g_object_ref (parent); - -#if 0 - if (item) - g_object_weak_ref (G_OBJECT (item), - unref_accessible, - a11y); -#endif - - return ATK_OBJECT (a11y); -} - -static gboolean -gal_a11y_e_table_item_ref_selection (GalA11yETableItem *a11y, - ESelectionModel *selection) -{ - GalA11yETableItemPrivate *priv; - - g_return_val_if_fail (a11y && selection, FALSE); - - priv = GET_PRIVATE (a11y); - priv->selection_change_id = g_signal_connect ( - G_OBJECT(selection), "selection_changed", - G_CALLBACK (eti_a11y_selection_changed_cb), a11y); - priv->cursor_change_id = g_signal_connect ( - G_OBJECT(selection), "cursor_changed", - G_CALLBACK (eti_a11y_cursor_changed_cb), a11y); - - priv->selection = selection; - g_object_ref (selection); - - return TRUE; -} - -static gboolean -gal_a11y_e_table_item_unref_selection (GalA11yETableItem *a11y) -{ - GalA11yETableItemPrivate *priv; - - g_return_val_if_fail (a11y, FALSE); - - priv = GET_PRIVATE (a11y); - - g_return_val_if_fail (priv->selection_change_id != 0, FALSE); - g_return_val_if_fail (priv->cursor_change_id != 0, FALSE); - - - g_signal_handler_disconnect (priv->selection, - priv->selection_change_id); - g_signal_handler_disconnect (priv->selection, - priv->cursor_change_id); - priv->cursor_change_id = 0; - priv->selection_change_id = 0; - - g_object_unref (priv->selection); - priv->selection = NULL; - - return TRUE; -} - -/* callbacks */ - -static void -eti_a11y_selection_model_removed_cb (ETableItem *eti, ESelectionModel *selection, - gpointer data) -{ - AtkObject *atk_obj; - GalA11yETableItem *a11y; - - g_return_if_fail (E_IS_TABLE_ITEM (eti)); - g_return_if_fail (E_IS_SELECTION_MODEL (selection)); - - atk_obj = atk_gobject_accessible_for_object (G_OBJECT (eti)); - a11y = GAL_A11Y_E_TABLE_ITEM (atk_obj); - - if (selection == GET_PRIVATE (a11y)->selection) - gal_a11y_e_table_item_unref_selection (a11y); -} - -static void -eti_a11y_selection_model_added_cb (ETableItem *eti, ESelectionModel *selection, - gpointer data) -{ - AtkObject *atk_obj; - GalA11yETableItem *a11y; - - g_return_if_fail (E_IS_TABLE_ITEM (eti)); - g_return_if_fail (E_IS_SELECTION_MODEL (selection)); - - atk_obj = atk_gobject_accessible_for_object (G_OBJECT (eti)); - a11y = GAL_A11Y_E_TABLE_ITEM (atk_obj); - - if (GET_PRIVATE (a11y)->selection) - gal_a11y_e_table_item_unref_selection (a11y); - gal_a11y_e_table_item_ref_selection (a11y, selection); -} - -static void -eti_a11y_selection_changed_cb (ESelectionModel *selection, GalA11yETableItem *a11y) -{ - g_return_if_fail (GAL_A11Y_IS_E_TABLE_ITEM (a11y)); - - g_signal_emit_by_name (a11y, "selection_changed"); -} - -static void -eti_a11y_cursor_changed_cb (ESelectionModel *selection, - int row, int col, GalA11yETableItem *a11y) -{ - AtkObject * cell; - int view_row, view_col; - ETableItem *item; - - g_return_if_fail (GAL_A11Y_IS_E_TABLE_ITEM (a11y)); - - g_signal_emit_by_name (a11y, "selection_changed"); - - item = E_TABLE_ITEM (eti_a11y_get_gobject (ATK_OBJECT (a11y))); - - g_return_if_fail (item); - - view_row = model_to_view_row (item, row); - view_col = model_to_view_col (item, col); - - cell = atk_table_ref_at (ATK_TABLE (a11y), view_row, view_col); - if (cell != NULL) { - gal_a11y_e_cell_add_state (GAL_A11Y_E_CELL (cell), ATK_STATE_FOCUSED, FALSE); - - if (ATK_IS_OBJECT (cell)) - g_signal_emit_by_name (a11y, - "active-descendant-changed", - cell); - atk_focus_tracker_notify (cell); - } - -} - -/* atk selection */ - -static void atk_selection_interface_init (AtkSelectionIface *iface) -{ - g_return_if_fail (iface != NULL); - iface->add_selection = selection_add_selection; - iface->clear_selection = selection_clear_selection; - iface->ref_selection = selection_ref_selection; - iface->get_selection_count = selection_get_selection_count; - iface->is_child_selected = selection_is_child_selected; -} - -static gboolean -selection_add_selection (AtkSelection *selection, gint index) -{ - AtkTable *table; - gint row, col; - ETableItem *item; - - item = E_TABLE_ITEM (eti_a11y_get_gobject (ATK_OBJECT (selection))); - if (!item) - return FALSE; - - table = ATK_TABLE (selection); - - row = atk_table_get_row_at_index (table, index); - atk_table_add_row_selection (table, row); - - col = atk_table_get_column_at_index (table, index); - e_selection_model_change_cursor (item->selection, - view_to_model_row (item, row), - view_to_model_col (item, col)); - e_selection_model_cursor_changed (item->selection, - view_to_model_row (item, row), - view_to_model_col (item, col)); - e_selection_model_cursor_activated (item->selection, - view_to_model_row (item, row), - view_to_model_col (item, col)); - return TRUE; -} - -static gboolean -selection_clear_selection (AtkSelection *selection) -{ - ETableItem *item; - - item = E_TABLE_ITEM (eti_a11y_get_gobject (ATK_OBJECT (selection))); - if (!item) - return FALSE; - - e_selection_model_clear (item->selection); - return TRUE; -} - -static AtkObject * -selection_ref_selection (AtkSelection *selection, gint index) -{ - AtkTable *table; - gint row, col; - - table = ATK_TABLE (selection); - row = atk_table_get_row_at_index (table, index); - col = atk_table_get_column_at_index (table, index); - if (!atk_table_is_row_selected (table, row)) - return NULL; - - return atk_table_ref_at (table, row, col); -} - -static gint -selection_get_selection_count (AtkSelection *selection) -{ - AtkTable *table; - gint n_selected; - - table = ATK_TABLE (selection); - n_selected = atk_table_get_selected_rows (table, NULL); - if (n_selected > 0) - n_selected *= atk_table_get_n_columns (table); - return n_selected; -} - -static gboolean -selection_is_child_selected (AtkSelection *selection, gint i) -{ - gint row; - - row = atk_table_get_row_at_index (ATK_TABLE (selection), i); - return atk_table_is_row_selected (ATK_TABLE (selection), row); -} |