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authorEric Zhao <eric.zhao@sun.com>2004-04-22 19:01:31 +0800
committerYuedong Du <york@src.gnome.org>2004-04-22 19:01:31 +0800
commit5effa08f248ddea3bf94314220b8dfae19d68a6c (patch)
tree2ebb42b27bbf44f901f3abb87fc78402a120a2e2 /a11y/e-table
parent98424ef86d18664ad64f53a701b4ac9214273107 (diff)
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Fixes bug #52935.
2004-04-22 Eric Zhao <eric.zhao@sun.com> Fixes bug #52935. * gal/a11y/e-table/gal-a11y-e-table-item.c: (eti_ref_at), (eti_reinit_data), (eti_clear_rows), (eti_tree_model_node_changed_cb), (gal_a11y_e_table_item_new), (eti_a11y_cursor_changed_cb): add cell-data synchronization when the table's model has been changed, prevent data inconsistency. svn path=/trunk/; revision=25579
Diffstat (limited to 'a11y/e-table')
-rw-r--r--a11y/e-table/gal-a11y-e-table-item.c109
1 files changed, 106 insertions, 3 deletions
diff --git a/a11y/e-table/gal-a11y-e-table-item.c b/a11y/e-table/gal-a11y-e-table-item.c
index 984eaa6e3a..266c95c57e 100644
--- a/a11y/e-table/gal-a11y-e-table-item.c
+++ b/a11y/e-table/gal-a11y-e-table-item.c
@@ -13,6 +13,8 @@
#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>
@@ -40,6 +42,7 @@ struct _GalA11yETableItemPrivate {
int cursor_change_id;
ETableCol ** columns;
ESelectionModel *selection;
+ GtkWidget *widget;
};
static gboolean gal_a11y_e_table_item_ref_selection (GalA11yETableItem *a11y,
@@ -294,7 +297,9 @@ eti_ref_at (AtkTable *table, gint row, gint column)
ETableCol *ecol = e_table_header_get_column (item->header, column);
gpointer * cell_data;
- cell_data = GET_PRIVATE (table)->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,
@@ -309,7 +314,6 @@ eti_ref_at (AtkTable *table, gint row, gint column)
g_object_weak_ref (G_OBJECT (ret),
(GWeakNotify) cell_destroyed,
ret);
-
else
ret = NULL;
} else {
@@ -675,6 +679,79 @@ eti_rows_inserted (ETableModel * model, int row, int count,
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)
@@ -742,6 +819,22 @@ eti_rows_deleted (ETableModel * model, int row, int count,
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,
@@ -1046,9 +1139,9 @@ gal_a11y_e_table_item_new (AtkObject *parent,
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;
@@ -1074,6 +1167,15 @@ gal_a11y_e_table_item_new (AtkObject *parent,
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);
@@ -1200,6 +1302,7 @@ eti_a11y_cursor_changed_cb (ESelectionModel *selection,
cell);
atk_focus_tracker_notify (cell);
}
+
}
/* atk selection */