/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* vim:expandtab:shiftwidth=8:tabstop=8:
*/
/* Evolution Accessibility: ea-calendar-item.c
*
* Copyright (C) 2003 Ximian, Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of version 2 of the GNU General Public
* License as published by the Free Software Foundation.
*
* This program 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
* Author: Bolian Yin <bolian.yin@sun.com> Sun Microsystem Inc., 2003
*
*/
#include <stdio.h>
#include <time.h>
#include <string.h>
#include <libgnomecanvas/gnome-canvas.h>
#include <glib/gdate.h>
#include "ea-calendar-item.h"
#include "ea-calendar-cell.h"
#include "ea-cell-table.h"
#define EA_CALENDAR_COLUMN_NUM E_CALENDAR_COLS_PER_MONTH
/* EaCalendarItem */
static void ea_calendar_item_class_init (EaCalendarItemClass *klass);
static void ea_calendar_item_finalize (GObject *object);
static G_CONST_RETURN gchar* ea_calendar_item_get_name (AtkObject *accessible);
static G_CONST_RETURN gchar* ea_calendar_item_get_description (AtkObject *accessible);
static gint ea_calendar_item_get_n_children (AtkObject *accessible);
static AtkObject *ea_calendar_item_ref_child (AtkObject *accessible, gint index);
/* atk table interface */
static void atk_table_interface_init (AtkTableIface *iface);
static gint table_interface_get_index_at (AtkTable *table,
gint row,
gint column);
static gint table_interface_get_column_at_index (AtkTable *table,
gint index);
static gint table_interface_get_row_at_index (AtkTable *table,
gint index);
static AtkObject* table_interface_ref_at (AtkTable *table,
gint row,
gint column);
static gint table_interface_get_n_rows (AtkTable *table);
static gint table_interface_get_n_columns (AtkTable *table);
static gint table_interface_get_column_extent_at (AtkTable *table,
gint row,
gint column);
static gint table_interface_get_row_extent_at (AtkTable *table,
gint row,
gint column);
static gboolean table_interface_is_row_selected (AtkTable *table,
gint row);
static gboolean table_interface_is_column_selected (AtkTable *table,
gint row);
static gboolean table_interface_is_selected (AtkTable *table,
gint row,
gint column);
static gint table_interface_get_selected_rows (AtkTable *table,
gint **rows_selected);
static gint table_interface_get_selected_columns (AtkTable *table,
gint **columns_selected);
static gboolean table_interface_add_row_selection (AtkTable *table, gint row);
static gboolean table_interface_remove_row_selection (AtkTable *table,
gint row);
static gboolean table_interface_add_column_selection (AtkTable *table,
gint column);
static gboolean table_interface_remove_column_selection (AtkTable *table,
gint column);
static AtkObject* table_interface_get_row_header (AtkTable *table, gint row);
static AtkObject* table_interface_get_column_header (AtkTable *table,
gint in_col);
static AtkObject* table_interface_get_caption (AtkTable *table);
static G_CONST_RETURN gchar*
table_interface_get_column_description (AtkTable *table, gint in_col);
static G_CONST_RETURN gchar*
table_interface_get_row_description (AtkTable *table, gint row);
static AtkObject* table_interface_get_summary (AtkTable *table);
/* atk selection interface */
static void atk_selection_interface_init (AtkSelectionIface *iface);
static gboolean selection_interface_add_selection (AtkSelection *selection,
gint i);
static gboolean selection_interface_clear_selection (AtkSelection *selection);
static AtkObject* selection_interface_ref_selection (AtkSelection *selection,
gint i);
static gint selection_interface_get_selection_count (AtkSelection *selection);
static gboolean selection_interface_is_child_selected (AtkSelection *selection,
gint i);
/* callbacks */
static void selection_preview_change_cb (ECalendarItem *calitem);
static void date_range_changed_cb (ECalendarItem *calitem);
static void selection_changed_cb (ECalendarItem *calitem);
/* helpers */
static EaCellTable *ea_calendar_item_get_cell_data (EaCalendarItem *ea_calitem);
static void ea_calendar_item_destory_cell_data (EaCalendarItem *ea_calitem);
static gboolean ea_calendar_item_get_column_label (EaCalendarItem *ea_calitem,
gint column,
gchar *buffer,
gint buffer_size);
static gboolean ea_calendar_item_get_row_label (EaCalendarItem *ea_calitem,
gint row,
gchar *buffer,
gint buffer_size);
#ifdef ACC_DEBUG
static gint n_ea_calendar_item_created = 0;
static gint n_ea_calendar_item_destroyed = 0;
#endif
static gpointer parent_class = NULL;
GType
ea_calendar_item_get_type (void)
{
static GType type = 0;
AtkObjectFactory *factory;
GTypeQuery query;
GType derived_atk_type;
if (!type) {
static GTypeInfo tinfo = {
sizeof (EaCalendarItemClass),
(GBaseInitFunc) NULL, /* base init */
(GBaseFinalizeFunc) NULL, /* base finalize */
(GClassInitFunc) ea_calendar_item_class_init, /* class init */
(GClassFinalizeFunc) NULL, /* class finalize */
NULL, /* class data */
sizeof (EaCalendarItem), /* instance size */
0, /* nb preallocs */
(GInstanceInitFunc) NULL, /* instance init */
NULL /* value table */
};
static const GInterfaceInfo atk_table_info = {
(GInterfaceInitFunc) atk_table_interface_init,
(GInterfaceFinalizeFunc) NULL,
NULL
};
static const GInterfaceInfo atk_selection_info = {
(GInterfaceInitFunc) atk_selection_interface_init,
(GInterfaceFinalizeFunc) NULL,
NULL
};
/*
* Figure out the size of the class and instance
* we are run-time deriving from (GailCanvasItem, in this case)
*/
factory = atk_registry_get_factory (atk_get_default_registry (),
GNOME_TYPE_CANVAS_ITEM);
derived_atk_type = atk_object_factory_get_accessible_type (factory);
g_type_query (derived_atk_type, &query);
tinfo.class_size = query.class_size;
tinfo.instance_size = query.instance_size;
type = g_type_register_static (derived_atk_type,
"EaCalendarItem", &tinfo, 0);
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;
}
static void
ea_calendar_item_class_init (EaCalendarItemClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
gobject_class->finalize = ea_calendar_item_finalize;
parent_class = g_type_class_peek_parent (klass);
class->get_name = ea_calendar_item_get_name;
class->get_description = ea_calendar_item_get_description;
class->get_n_children = ea_calendar_item_get_n_children;
class->ref_child = ea_calendar_item_ref_child;
}
AtkObject*
ea_calendar_item_new (GObject *obj)
{
gpointer object;
AtkObject *atk_object;
g_return_val_if_fail (E_IS_CALENDAR_ITEM (obj), NULL);
object = g_object_new (EA_TYPE_CALENDAR_ITEM, NULL);
atk_object = ATK_OBJECT (object);
atk_object_initialize (atk_object, obj);
atk_object->role = ATK_ROLE_TABLE;
#ifdef ACC_DEBUG
++n_ea_calendar_item_created;
g_print ("ACC_DEBUG: n_ea_calendar_item_created = %d\n",
n_ea_calendar_item_created);
#endif
/* connect signal handlers */
g_signal_connect (obj, "selection_preview_changed",
G_CALLBACK (selection_preview_change_cb),
atk_object);
g_signal_connect (obj, "date_range_changed",
G_CALLBACK (date_range_changed_cb),
atk_object);
g_signal_connect (obj, "selection_preview_changed",
G_CALLBACK (selection_changed_cb),
atk_object);
return atk_object;
}
static void
ea_calendar_item_finalize (GObject *object)
{
EaCalendarItem *ea_calitem;
g_return_if_fail (EA_IS_CALENDAR_ITEM (object));
ea_calitem = EA_CALENDAR_ITEM (object);
/* Free the allocated cell data */
ea_calendar_item_destory_cell_data (ea_calitem);
G_OBJECT_CLASS (parent_class)->finalize (object);
#ifdef ACC_DEBUG
++n_ea_calendar_item_destroyed;
printf ("ACC_DEBUG: n_ea_calendar_item_destroyed = %d\n",
n_ea_calendar_item_destroyed);
#endif
}
static G_CONST_RETURN gchar*
ea_calendar_item_get_name (AtkObject *accessible)
{
GObject *g_obj;
ECalendarItem *calitem;
gint start_year, start_month, start_day;
gint end_year, end_month, end_day;
static gchar new_name[256] = "";
g_return_val_if_fail (EA_IS_CALENDAR_ITEM (accessible), NULL);
if (accessible->name)
return accessible->name;
g_obj = atk_gobject_accessible_get_object (ATK_GOBJECT_ACCESSIBLE(accessible));
g_return_val_if_fail (E_IS_CALENDAR_ITEM (g_obj), NULL);
calitem = E_CALENDAR_ITEM (g_obj);
if (e_calendar_item_get_date_range (calitem,
&start_year, &start_month, &start_day,
&end_year, &end_month, &end_day)) {
++start_month;
++end_month;
sprintf (new_name, "calendar (from %d-%d-%d to %d-%d-%d)",
start_year, start_month, start_day,
end_year, end_month, end_day);
}
#if 0
if (e_calendar_item_get_selection (calitem, &select_start, &select_end)) {
GDate select_start, select_end;
gint year1, year2, month1, month2, day1, day2;
year1 = g_date_get_year (&select_start);
month1 = g_date_get_month (&select_start);
day1 = g_date_get_day (&select_start);
year2 = g_date_get_year (&select_end);
month2 = g_date_get_month (&select_end);
day2 = g_date_get_day (&select_end);
sprintf (new_name + strlen (new_name),
" : current selection: from %d-%d-%d to %d-%d-%d.",
year1, month1, day1,
year2, month2, day2);
}
#endif
return new_name;
}
static G_CONST_RETURN gchar*
ea_calendar_item_get_description (AtkObject *accessible)
{
if (accessible->description)
return accessible->description;
return "evolution calendar item";
}
static gint
ea_calendar_item_get_n_children (AtkObject *accessible)
{
AtkGObjectAccessible *atk_gobj;
GObject *g_obj;
ECalendarItem *calitem;
gint n_children = 0;
gint start_year, start_month, start_day;
gint end_year, end_month, end_day;
GDate *start_date, *end_date;
g_return_val_if_fail (EA_IS_CALENDAR_ITEM (accessible), -1);
atk_gobj = ATK_GOBJECT_ACCESSIBLE (accessible);
g_obj = atk_gobject_accessible_get_object (atk_gobj);
if (!g_obj)
return -1;
calitem = E_CALENDAR_ITEM (g_obj);
if (!e_calendar_item_get_date_range (calitem, &start_year,
&start_month, &start_day,
&end_year, &end_month,
&end_day))
return 0;
start_date = g_date_new_dmy (start_day, start_month + 1, start_year);
end_date = g_date_new_dmy (end_day, end_month + 1, end_year);
n_children = g_date_days_between (start_date, end_date) + 1;
g_free (start_date);
g_free (end_date);
return n_children;
}
static AtkObject *
ea_calendar_item_ref_child (AtkObject *accessible, gint index)
{
AtkGObjectAccessible *atk_gobj;
GObject *g_obj;
ECalendarItem *calitem;
gint n_children;
ECalendarCell *cell;
EaCellTable *cell_data;
EaCalendarItem *ea_calitem;
g_return_val_if_fail (EA_IS_CALENDAR_ITEM (accessible), NULL);
atk_gobj = ATK_GOBJECT_ACCESSIBLE (accessible);
g_obj = atk_gobject_accessible_get_object (atk_gobj);
if (!g_obj)
return NULL;
calitem = E_CALENDAR_ITEM (g_obj);
n_children = ea_calendar_item_get_n_children (accessible);
if (index < 0 || index >= n_children)
return NULL;
ea_calitem = EA_CALENDAR_ITEM (accessible);
cell_data = ea_calendar_item_get_cell_data (ea_calitem);
if (!cell_data)
return NULL;
cell = ea_cell_table_get_cell_at_index (cell_data, index);
if (!cell) {
cell = e_calendar_cell_new (calitem,
index / EA_CALENDAR_COLUMN_NUM,
index % EA_CALENDAR_COLUMN_NUM);
ea_cell_table_set_cell_at_index (cell_data, index, cell);
g_object_unref (cell);
}
#ifdef ACC_DEBUG
g_print ("AccDebug: ea_calendar_item children[%d]=%p\n", index,
(gpointer)cell);
#endif
return g_object_ref (atk_gobject_accessible_for_object (G_OBJECT(cell)));
}
/* atk table interface */
static void
atk_table_interface_init (AtkTableIface *iface)
{
g_return_if_fail (iface != NULL);
iface->ref_at = table_interface_ref_at;
iface->get_n_rows = table_interface_get_n_rows;
iface->get_n_columns = table_interface_get_n_columns;
iface->get_index_at = table_interface_get_index_at;
iface->get_column_at_index = table_interface_get_column_at_index;
iface->get_row_at_index = table_interface_get_row_at_index;
iface->get_column_extent_at = table_interface_get_column_extent_at;
iface->get_row_extent_at = table_interface_get_row_extent_at;
iface->is_selected = table_interface_is_selected;
iface->get_selected_rows = table_interface_get_selected_rows;
iface->get_selected_columns = table_interface_get_selected_columns;
iface->is_row_selected = table_interface_is_row_selected;
iface->is_column_selected = table_interface_is_column_selected;
iface->add_row_selection = table_interface_add_row_selection;
iface->remove_row_selection = table_interface_remove_row_selection;
iface->add_column_selection = table_interface_add_column_selection;
iface->remove_column_selection = table_interface_remove_column_selection;
iface->get_row_header = table_interface_get_row_header;
iface->get_column_header = table_interface_get_column_header;
iface->get_caption = table_interface_get_caption;
iface->get_summary = table_interface_get_summary;
iface->get_row_description = table_interface_get_row_description;
iface->get_column_description = table_interface_get_column_description;
}
static AtkObject*
table_interface_ref_at (AtkTable *table,
gint row,
gint column)
{
gint index;
EaCalendarItem* ea_calitem = EA_CALENDAR_ITEM (table);
index = EA_CALENDAR_COLUMN_NUM * row + column;
return ea_calendar_item_ref_child (ATK_OBJECT (ea_calitem), index);
}
static gint
table_interface_get_n_rows (AtkTable *table)
{
AtkGObjectAccessible *atk_gobj;
GObject *g_obj;
EaCalendarItem* ea_calitem = EA_CALENDAR_ITEM (table);
gint n_children;
atk_gobj = ATK_GOBJECT_ACCESSIBLE (ea_calitem);
g_obj = atk_gobject_accessible_get_object (atk_gobj);
if (!g_obj)
return -1;
n_children = ea_calendar_item_get_n_children (ATK_OBJECT (ea_calitem));
return (n_children - 1) / EA_CALENDAR_COLUMN_NUM + 1;
}
static gint
table_interface_get_n_columns (AtkTable *table)
{
AtkGObjectAccessible *atk_gobj;
GObject *g_obj;
EaCalendarItem* ea_calitem = EA_CALENDAR_ITEM (table);
atk_gobj = ATK_GOBJECT_ACCESSIBLE (ea_calitem);
g_obj = atk_gobject_accessible_get_object (atk_gobj);
if (!g_obj)
return -1;
return EA_CALENDAR_COLUMN_NUM;
}
static gint
table_interface_get_index_at (AtkTable *table,
gint row,
gint column)
{
AtkGObjectAccessible *atk_gobj;
GObject *g_obj;
EaCalendarItem* ea_calitem = EA_CALENDAR_ITEM (table);
atk_gobj = ATK_GOBJECT_ACCESSIBLE (ea_calitem);
g_obj = atk_gobject_accessible_get_object (atk_gobj);
if (!g_obj)
return -1;
return row * EA_CALENDAR_COLUMN_NUM + column;
}
static gint
table_interface_get_column_at_index (AtkTable *table,
gint index)
{
AtkGObjectAccessible *atk_gobj;
GObject *g_obj;
EaCalendarItem* ea_calitem = EA_CALENDAR_ITEM (table);
gint n_children;
atk_gobj = ATK_GOBJECT_ACCESSIBLE (ea_calitem);
g_obj = atk_gobject_accessible_get_object (atk_gobj);
if (!g_obj)
return -1;
n_children = ea_calendar_item_get_n_children (ATK_OBJECT (ea_calitem));
if (index >= 0 && index < n_children)
return index % EA_CALENDAR_COLUMN_NUM;
return -1;
}
static gint
table_interface_get_row_at_index (AtkTable *table,
gint index)
{
AtkGObjectAccessible *atk_gobj;
GObject *g_obj;
EaCalendarItem* ea_calitem = EA_CALENDAR_ITEM (table);
gint n_children;
atk_gobj = ATK_GOBJECT_ACCESSIBLE (ea_calitem);
g_obj = atk_gobject_accessible_get_object (atk_gobj);
if (!g_obj)
return -1;
n_children = ea_calendar_item_get_n_children (ATK_OBJECT (ea_calitem));
if (index >= 0 && index < n_children)
return index / EA_CALENDAR_COLUMN_NUM;
return -1;
}
static gint
table_interface_get_column_extent_at (AtkTable *table,
gint row,
gint column)
{
AtkGObjectAccessible *atk_gobj;
GObject *g_obj;
ECalendarItem *calitem;
EaCalendarItem* ea_calitem = EA_CALENDAR_ITEM (table);
atk_gobj = ATK_GOBJECT_ACCESSIBLE (ea_calitem);
g_obj = atk_gobject_accessible_get_object (atk_gobj);
if (!g_obj)
return FALSE;
calitem = E_CALENDAR_ITEM (g_obj);
return calitem->cell_width;
}
static gint
table_interface_get_row_extent_at (AtkTable *table,
gint row, gint column)
{
AtkGObjectAccessible *atk_gobj;
GObject *g_obj;
ECalendarItem *calitem;
EaCalendarItem* ea_calitem = EA_CALENDAR_ITEM (table);
atk_gobj = ATK_GOBJECT_ACCESSIBLE (ea_calitem);
g_obj = atk_gobject_accessible_get_object (atk_gobj);
if (!g_obj)
return FALSE;
calitem = E_CALENDAR_ITEM (g_obj);
return calitem->cell_height;
}
/* any day in the row is selected, the row is selected */
static gboolean
table_interface_is_row_selected (AtkTable *table,
gint row)
{
AtkGObjectAccessible *atk_gobj;
GObject *g_obj;
gint n_rows;
ECalendarItem *calitem;
gint row_index_start, row_index_end;
gint sel_index_start, sel_index_end;
GDate start_date, end_date;
g_return_val_if_fail (EA_IS_CALENDAR_ITEM (table), FALSE);
atk_gobj = ATK_GOBJECT_ACCESSIBLE (table);
g_obj = atk_gobject_accessible_get_object (atk_gobj);
if (!g_obj)
return FALSE;
n_rows = table_interface_get_n_rows (table);
if (row < 0 || row >= n_rows)
return FALSE;
row_index_start = row * EA_CALENDAR_COLUMN_NUM;
row_index_end = row_index_start + EA_CALENDAR_COLUMN_NUM - 1;
calitem = E_CALENDAR_ITEM (g_obj);
e_calendar_item_get_selection (calitem, &start_date, &end_date);
sel_index_start =
e_calendar_item_get_offset_for_date (calitem,
g_date_get_year (&start_date),
g_date_get_month (&start_date),
g_date_get_day (&start_date));
sel_index_end =
e_calendar_item_get_offset_for_date (calitem,
g_date_get_year (&end_date),
g_date_get_month (&end_date),
g_date_get_day (&end_date));
if ((sel_index_start < row_index_start &&
sel_index_end >= row_index_start) ||
(sel_index_start >= row_index_start &&
sel_index_start <= row_index_end))
return TRUE;
return FALSE;
}
static gboolean
table_interface_is_selected (AtkTable *table,
gint row,
gint column)
{
AtkGObjectAccessible *atk_gobj;
GObject *g_obj;
gint n_rows, n_columns;
ECalendarItem *calitem;
gint index;
gint sel_index_start, sel_index_end;
GDate start_date, end_date;
g_return_val_if_fail (EA_IS_CALENDAR_ITEM (table), FALSE);
atk_gobj = ATK_GOBJECT_ACCESSIBLE (table);
g_obj = atk_gobject_accessible_get_object (atk_gobj);
if (!g_obj)
return FALSE;
n_rows = table_interface_get_n_rows (table);
if (row < 0 || row >= n_rows)
return FALSE;
n_columns = table_interface_get_n_columns (table);
if (column < 0 || column >= n_columns)
return FALSE;
index = table_interface_get_index_at (table, row, column);
calitem = E_CALENDAR_ITEM (g_obj);
e_calendar_item_get_selection (calitem, &start_date, &end_date);
sel_index_start =
e_calendar_item_get_offset_for_date (calitem,
g_date_get_year (&start_date),
g_date_get_month (&start_date),
g_date_get_day (&start_date));
sel_index_end =
e_calendar_item_get_offset_for_date (calitem,
g_date_get_year (&end_date),
g_date_get_month (&end_date),
g_date_get_day (&end_date));
if (sel_index_start <= index && sel_index_end >= index)
return TRUE;
return FALSE;
}
static gboolean
table_interface_is_column_selected (AtkTable *table,
gint column)
{
return FALSE;
}
static gint
table_interface_get_selected_rows (AtkTable *table,
gint **rows_selected)
{
*rows_selected = NULL;
return -1;
}
static gint
table_interface_get_selected_columns (AtkTable *table,
gint **columns_selected)
{
columns_selected = NULL;
return -1;
}
static gboolean
table_interface_add_row_selection (AtkTable *table,
gint row)
{
return FALSE;
}
static gboolean
table_interface_remove_row_selection (AtkTable *table,
gint row)
{
return FALSE;
}
static gboolean
table_interface_add_column_selection (AtkTable *table,
gint column)
{
return FALSE;
}
static gboolean
table_interface_remove_column_selection (AtkTable *table,
gint column)
{
/* FIXME: NOT IMPLEMENTED */
return FALSE;
}
static AtkObject*
table_interface_get_row_header (AtkTable *table,
gint row)
{
/* FIXME: NOT IMPLEMENTED */
return NULL;
}
static AtkObject*
table_interface_get_column_header (AtkTable *table,
gint in_col)
{
/* FIXME: NOT IMPLEMENTED */
return NULL;
}
static AtkObject*
table_interface_get_caption (AtkTable *table)
{
/* FIXME: NOT IMPLEMENTED */
return NULL;
}
static G_CONST_RETURN gchar*
table_interface_get_column_description (AtkTable *table, gint in_col)
{
AtkGObjectAccessible *atk_gobj;
GObject *g_obj;
ECalendarItem *calitem;
EaCalendarItem* ea_calitem = EA_CALENDAR_ITEM (table);
const gchar *description = NULL;
EaCellTable *cell_data;
gint n_columns;
atk_gobj = ATK_GOBJECT_ACCESSIBLE (ea_calitem);
g_obj = atk_gobject_accessible_get_object (atk_gobj);
if (!g_obj)
return NULL;
calitem = E_CALENDAR_ITEM (g_obj);
n_columns = table_interface_get_n_columns (table);
if (in_col < 0 || in_col >= n_columns)
return NULL;
cell_data = ea_calendar_item_get_cell_data (ea_calitem);
if (!cell_data)
return NULL;
description = ea_cell_table_get_column_label (cell_data, in_col);
if (!description) {
gchar buffer[128] = "column description";
ea_calendar_item_get_column_label (ea_calitem, in_col,
buffer, sizeof (buffer));
ea_cell_table_set_column_label (cell_data, in_col, buffer);
description = ea_cell_table_get_column_label (cell_data,
in_col);
}
return description;
}
static G_CONST_RETURN gchar*
table_interface_get_row_description (AtkTable *table, gint row)
{
AtkGObjectAccessible *atk_gobj;
GObject *g_obj;
ECalendarItem *calitem;
EaCalendarItem* ea_calitem = EA_CALENDAR_ITEM (table);
const gchar *description = NULL;
EaCellTable *cell_data;
gint n_rows;
atk_gobj = ATK_GOBJECT_ACCESSIBLE (ea_calitem);
g_obj = atk_gobject_accessible_get_object (atk_gobj);
if (!g_obj)
return NULL;
calitem = E_CALENDAR_ITEM (g_obj);
n_rows = table_interface_get_n_rows (table);
if (row < 0 || row >= n_rows)
return NULL;
cell_data = ea_calendar_item_get_cell_data (ea_calitem);
if (!cell_data)
return NULL;
description = ea_cell_table_get_row_label (cell_data, row);
if (!description) {
gchar buffer[128] = "row description";
ea_calendar_item_get_row_label (ea_calitem, row,
buffer, sizeof (buffer));
ea_cell_table_set_row_label (cell_data, row, buffer);
description = ea_cell_table_get_row_label (cell_data,
row);
}
return description;
}
static AtkObject*
table_interface_get_summary (AtkTable *table)
{
/* FIXME: NOT IMPLEMENTED */
return NULL;
}
/* atkselection interface */
static void
atk_selection_interface_init (AtkSelectionIface *iface)
{
g_return_if_fail (iface != NULL);
iface->add_selection = selection_interface_add_selection;
iface->clear_selection = selection_interface_clear_selection;
iface->ref_selection = selection_interface_ref_selection;
iface->get_selection_count = selection_interface_get_selection_count;
iface->is_child_selected = selection_interface_is_child_selected;
}
static gboolean
selection_interface_add_selection (AtkSelection *selection, gint index)
{
AtkGObjectAccessible *atk_gobj;
GObject *g_obj;
ECalendarItem *calitem;
EaCalendarItem* ea_calitem = EA_CALENDAR_ITEM (selection);
gint year, month, day;
GDate start_date, end_date;
atk_gobj = ATK_GOBJECT_ACCESSIBLE (ea_calitem);
g_obj = atk_gobject_accessible_get_object (atk_gobj);
if (!g_obj)
return FALSE;
calitem = E_CALENDAR_ITEM (g_obj);
if (!e_calendar_item_get_date_for_offset (calitem, index,
&year, &month, &day))
return FALSE;
/* FIXME: not support mulit-selection */
g_date_set_dmy (&start_date, day, month + 1, year);
end_date = start_date;
e_calendar_item_set_selection (calitem, &start_date, &end_date);
return TRUE;
}
static gboolean
selection_interface_clear_selection (AtkSelection *selection)
{
AtkGObjectAccessible *atk_gobj;
GObject *g_obj;
ECalendarItem *calitem;
EaCalendarItem* ea_calitem = EA_CALENDAR_ITEM (selection);
atk_gobj = ATK_GOBJECT_ACCESSIBLE (ea_calitem);
g_obj = atk_gobject_accessible_get_object (atk_gobj);
if (!g_obj)
return FALSE;
calitem = E_CALENDAR_ITEM (g_obj);
e_calendar_item_set_selection (calitem, NULL, NULL);
return TRUE;
}
static AtkObject*
selection_interface_ref_selection (AtkSelection *selection, gint i)
{
GObject *g_obj;
ECalendarItem *calitem;
EaCalendarItem* ea_calitem = EA_CALENDAR_ITEM (selection);
gint count, sel_offset;
GDate start_date, end_date;
count = selection_interface_get_selection_count (selection);
if (i < 0 || i >= count)
return NULL;
g_obj = atk_gobject_accessible_get_object (ATK_GOBJECT_ACCESSIBLE (ea_calitem));
calitem = E_CALENDAR_ITEM (g_obj);
e_calendar_item_get_selection (calitem, &start_date, &end_date);
sel_offset = e_calendar_item_get_offset_for_date (calitem,
g_date_get_year (&start_date),
g_date_get_month (&start_date),
g_date_get_day (&start_date));
return ea_calendar_item_ref_child (ATK_OBJECT (selection), sel_offset + i);
}
static gint
selection_interface_get_selection_count (AtkSelection *selection)
{
AtkGObjectAccessible *atk_gobj;
GObject *g_obj;
ECalendarItem *calitem;
EaCalendarItem* ea_calitem = EA_CALENDAR_ITEM (selection);
GDate start_date, end_date;
atk_gobj = ATK_GOBJECT_ACCESSIBLE (ea_calitem);
g_obj = atk_gobject_accessible_get_object (atk_gobj);
if (!g_obj)
return 0;
calitem = E_CALENDAR_ITEM (g_obj);
e_calendar_item_get_selection (calitem, &start_date, &end_date);
return g_date_days_between (&start_date, &end_date) + 1;
}
static gboolean
selection_interface_is_child_selected (AtkSelection *selection, gint index)
{
AtkGObjectAccessible *atk_gobj;
GObject *g_obj;
ECalendarItem *calitem;
EaCalendarItem* ea_calitem = EA_CALENDAR_ITEM (selection);
gint row, column, n_children;
atk_gobj = ATK_GOBJECT_ACCESSIBLE (ea_calitem);
g_obj = atk_gobject_accessible_get_object (atk_gobj);
if (!g_obj)
return FALSE;
calitem = E_CALENDAR_ITEM (g_obj);
n_children = atk_object_get_n_accessible_children (ATK_OBJECT (selection));
if (index < 0 || index >= n_children)
return FALSE;
row = index / EA_CALENDAR_COLUMN_NUM;
column = index % EA_CALENDAR_COLUMN_NUM;
return table_interface_is_selected (ATK_TABLE (selection), row, column);
}
/* callbacks */
static void
selection_preview_change_cb (ECalendarItem *calitem)
{
AtkObject *atk_obj;
g_return_if_fail (E_IS_CALENDAR_ITEM (calitem));
atk_obj = atk_gobject_accessible_for_object (G_OBJECT (calitem));
g_signal_emit_by_name (atk_obj, "selection_changed");
}
static void
date_range_changed_cb (ECalendarItem *calitem)
{
AtkObject *atk_obj;
g_return_if_fail (E_IS_CALENDAR_ITEM (calitem));
atk_obj = atk_gobject_accessible_for_object (G_OBJECT (calitem));
ea_calendar_item_destory_cell_data (EA_CALENDAR_ITEM (atk_obj));
g_signal_emit_by_name (atk_obj, "model_changed");
}
static void
selection_changed_cb (ECalendarItem *calitem)
{
selection_preview_change_cb (calitem);
}
/* helpers */
static EaCellTable *
ea_calendar_item_get_cell_data (EaCalendarItem *ea_calitem)
{
AtkGObjectAccessible *atk_gobj;
GObject *g_obj;
ECalendarItem *calitem;
EaCellTable *cell_data;
g_return_val_if_fail (ea_calitem, NULL);
atk_gobj = ATK_GOBJECT_ACCESSIBLE (ea_calitem);
g_obj = atk_gobject_accessible_get_object (atk_gobj);
if (!g_obj)
return NULL;
calitem = E_CALENDAR_ITEM (g_obj);
cell_data = g_object_get_data (G_OBJECT(ea_calitem),
"ea-calendar-cell-table");
if (!cell_data) {
gint n_cells = ea_calendar_item_get_n_children (ATK_OBJECT(ea_calitem));
cell_data = ea_cell_table_create (n_cells/EA_CALENDAR_COLUMN_NUM,
EA_CALENDAR_COLUMN_NUM,
FALSE);
g_object_set_data (G_OBJECT(ea_calitem),
"ea-calendar-cell-table", cell_data);
}
return cell_data;
}
static void
ea_calendar_item_destory_cell_data (EaCalendarItem *ea_calitem)
{
EaCellTable *cell_data;
g_return_if_fail (ea_calitem);
cell_data = g_object_get_data (G_OBJECT(ea_calitem),
"ea-calendar-cell-table");
if (cell_data) {
ea_cell_table_destroy (cell_data);
g_object_set_data (G_OBJECT(ea_calitem),
"ea-calendar-cell-table", NULL);
}
}
static gboolean
ea_calendar_item_get_row_label (EaCalendarItem *ea_calitem, gint row,
gchar *buffer, gint buffer_size)
{
AtkGObjectAccessible *atk_gobj;
GObject *g_obj;
ECalendarItem *calitem;
gint index, week_num;
gint year, month, day;
g_return_val_if_fail (ea_calitem, FALSE);
atk_gobj = ATK_GOBJECT_ACCESSIBLE (ea_calitem);
g_obj = atk_gobject_accessible_get_object (atk_gobj);
if (!g_obj)
return FALSE;
calitem = E_CALENDAR_ITEM (g_obj);
index = atk_table_get_index_at (ATK_TABLE (ea_calitem), row, 0);
if (!e_calendar_item_get_date_for_offset (calitem, index,
&year, &month, &day))
return FALSE;
week_num = e_calendar_item_get_week_number (calitem,
day, month, year);
g_snprintf (buffer, buffer_size, "week number : %d", week_num);
return TRUE;
}
static gboolean
ea_calendar_item_get_column_label (EaCalendarItem *ea_calitem, gint column,
gchar *buffer, gint buffer_size)
{
AtkGObjectAccessible *atk_gobj;
GObject *g_obj;
ECalendarItem *calitem;
gchar *week_char;
gint char_size;
g_return_val_if_fail (ea_calitem, FALSE);
atk_gobj = ATK_GOBJECT_ACCESSIBLE (ea_calitem);
g_obj = atk_gobject_accessible_get_object (atk_gobj);
if (!g_obj)
return FALSE;
calitem = E_CALENDAR_ITEM (g_obj);
week_char = g_utf8_offset_to_pointer (calitem->days, column);
char_size = strlen (calitem->days) -
strlen (g_utf8_find_next_char (calitem->days, NULL));
if (week_char && char_size < buffer_size) {
memcpy (buffer, week_char, char_size);
buffer[char_size] = '\0';
return TRUE;
}
return FALSE;
}
/* the coordinate the e-calendar canvas coord */
gboolean
e_calendar_item_get_day_extents (ECalendarItem *calitem,
gint year, gint month, gint date,
gint *x, gint *y,
gint *width, gint *height)
{
GnomeCanvasItem *item;
GtkWidget *widget;
GtkStyle *style;
PangoFontDescription *font_desc;
PangoContext *pango_context;
PangoFontMetrics *font_metrics;
gint char_height, xthickness, ythickness, text_y;
gint new_year, new_month, num_months, months_offset;
gint month_x, month_y, month_cell_x, month_cell_y;
gint month_row, month_col;
gint day_row, day_col;
gint days_from_week_start;
g_return_val_if_fail (E_IS_CALENDAR_ITEM (calitem), FALSE);
item = GNOME_CANVAS_ITEM (calitem);
widget = GTK_WIDGET (item->canvas);
style = widget->style;
/* Set up Pango prerequisites */
font_desc = calitem->font_desc;
if (!font_desc)
font_desc = style->font_desc;
pango_context = gtk_widget_get_pango_context (widget);
font_metrics = pango_context_get_metrics (pango_context, font_desc,
pango_context_get_language (pango_context));
char_height =
PANGO_PIXELS (pango_font_metrics_get_ascent (font_metrics)) +
PANGO_PIXELS (pango_font_metrics_get_descent (font_metrics));
xthickness = style->xthickness;
ythickness = style->ythickness;
new_year = year;
new_month = month;
e_calendar_item_normalize_date (calitem, &new_year, &new_month);
num_months = calitem->rows * calitem->cols;
months_offset = (new_year - calitem->year) * 12
+ new_month - calitem->month;
if (months_offset > num_months || months_offset < 0)
return FALSE;
month_row = months_offset / calitem->cols;
month_col = months_offset % calitem->cols;
month_x = item->x1 + xthickness + calitem->x_offset
+ month_col * calitem->month_width;
month_y = item->y1 + ythickness + month_row * calitem->month_height;
month_cell_x = month_x + E_CALENDAR_ITEM_XPAD_BEFORE_WEEK_NUMBERS
+ calitem->month_lpad + E_CALENDAR_ITEM_XPAD_BEFORE_CELLS;
text_y = month_y + ythickness * 2
+ E_CALENDAR_ITEM_YPAD_ABOVE_MONTH_NAME
+ char_height + E_CALENDAR_ITEM_YPAD_BELOW_MONTH_NAME
+ E_CALENDAR_ITEM_YPAD_ABOVE_DAY_LETTERS + calitem->month_tpad;
month_cell_y = text_y + char_height
+ E_CALENDAR_ITEM_YPAD_BELOW_DAY_LETTERS + 1
+ E_CALENDAR_ITEM_YPAD_ABOVE_CELLS;
days_from_week_start =
e_calendar_item_get_n_days_from_week_start (calitem, new_year,
new_month);
day_row = (date + days_from_week_start - 1) / EA_CALENDAR_COLUMN_NUM;
day_col = (date + days_from_week_start - 1) % EA_CALENDAR_COLUMN_NUM;
*x = month_cell_x + day_col * calitem->cell_width;
*y = month_cell_y + day_row * calitem->cell_height;
*width = calitem->cell_width;
*height = calitem->cell_height;
return TRUE;
}
/* month is from 0 to 11 */
gboolean
e_calendar_item_get_date_for_offset (ECalendarItem *calitem, gint day_offset,
gint *year, gint *month, gint *day)
{
gint start_year, start_month, start_day;
gint end_year, end_month, end_day;
GDate *start_date;
g_return_val_if_fail (E_IS_CALENDAR_ITEM (calitem), FALSE);
if (!e_calendar_item_get_date_range (calitem, &start_year,
&start_month, &start_day,
&end_year, &end_month,
&end_day))
return FALSE;
start_date = g_date_new_dmy (start_day, start_month + 1, start_year);
g_date_add_days (start_date, day_offset);
*year = g_date_get_year (start_date);
*month = g_date_get_month (start_date) - 1;
*day = g_date_get_day (start_date);
return TRUE;
}
/* month is from 0 to 11 */
gint
e_calendar_item_get_offset_for_date (ECalendarItem *calitem,
gint year, gint month, gint day)
{
gint start_year, start_month, start_day;
gint end_year, end_month, end_day;
GDate *start_date, *end_date;
gint n_days;
g_return_val_if_fail (E_IS_CALENDAR_ITEM (calitem), -1);
if (!e_calendar_item_get_date_range (calitem, &start_year,
&start_month, &start_day,
&end_year, &end_month,
&end_day))
return FALSE;
start_date = g_date_new_dmy (start_day, start_month + 1, start_year);
end_date = g_date_new_dmy (day, month + 1, year);
n_days = g_date_days_between (start_date, end_date);
g_free (start_date);
g_free (end_date);
return n_days;
}
gint
e_calendar_item_get_n_days_from_week_start (ECalendarItem *calitem,
gint year, gint month)
{
struct tm tmp_tm;
gint start_weekday, days_from_week_start;
memset (&tmp_tm, 0, sizeof (tmp_tm));
tmp_tm.tm_year = year - 1900;
tmp_tm.tm_mon = month;
tmp_tm.tm_mday = 1;
tmp_tm.tm_isdst = -1;
mktime (&tmp_tm);
start_weekday = (tmp_tm.tm_wday + 6) % 7; /* 0 to 6 */
days_from_week_start = (start_weekday + 7 - calitem->week_start_day)
% 7;
return days_from_week_start;
}
