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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* vim:expandtab:shiftwidth=8:tabstop=8:
*/
/* Evolution Accessibility: ea-calendar-helpers.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 "ea-calendar-helpers.h"
#include "ea-cal-view-event.h"
#include "ea-jump-button.h"
#include "e-day-view.h"
#include "e-week-view.h"
#include <gal/e-text/e-text.h>
#include <libgnomecanvas/gnome-canvas-pixbuf.h>
/**
* ea_calendar_helpers_get_accessible_for
* @canvas_item: the canvas item for a event or a jump button
* @returns: the atk object for the canvas_item
*
**/
AtkObject *
ea_calendar_helpers_get_accessible_for (GnomeCanvasItem *canvas_item)
{
AtkObject *atk_obj = NULL;
GObject *g_obj;
g_return_val_if_fail ((E_IS_TEXT (canvas_item)) || (GNOME_IS_CANVAS_ITEM (canvas_item)), NULL);;
g_obj = G_OBJECT (canvas_item);
/* we cannot use atk_gobject_accessible_for_object here,
* EaDayViewEvent/EaWeekViewEvent cannot be created by the
* registered facotry of E_TEXT
*/
atk_obj = g_object_get_data (g_obj, "accessible-object");
if (!atk_obj) {
if (E_IS_TEXT (canvas_item)) {
atk_obj = ea_cal_view_event_new (g_obj);
}
else if (GNOME_IS_CANVAS_PIXBUF(canvas_item)) {
atk_obj = ea_jump_button_new (g_obj);
}
else
return NULL;
}
return atk_obj;
}
/**
* ea_calendar_helpers_get_view_widget_from:
* @canvas_item: the canvas item for a event or a jump button
* @returns: the cal view widget if exists
*
* Get the cal view widget contains the canvas_item.
*
**/
ECalendarView *
ea_calendar_helpers_get_cal_view_from (GnomeCanvasItem *canvas_item)
{
GnomeCanvas *canvas;
GtkWidget *view_widget = NULL;
g_return_val_if_fail (canvas_item, NULL);
g_return_val_if_fail ((E_IS_TEXT (canvas_item)) || (GNOME_IS_CANVAS_ITEM (canvas_item)), NULL);
/* canvas_item is the e_text for the event */
/* canvas_item->canvas is the ECanvas for day view */
/* parent of canvas_item->canvas is the EDayView or EWeekView widget */
canvas = canvas_item->canvas;
view_widget = gtk_widget_get_parent (GTK_WIDGET(canvas));
if (!view_widget || !E_IS_CAL_VIEW (view_widget))
return NULL;
return E_CAL_VIEW (view_widget);
}
/**
* ea_calendar_helpers_get_cal_view_event_from
* @canvas_item: the cavas_item (e_text) for the event
* @returns: the ECalendarViewEvent
*
* Get the ECalendarViewEvent for the canvas_item.
*
**/
ECalendarViewEvent *
ea_calendar_helpers_get_cal_view_event_from (GnomeCanvasItem *canvas_item)
{
ECalendarView *cal_view;
gboolean event_found;
ECalendarViewEvent *cal_view_event;
g_return_val_if_fail (E_IS_TEXT (canvas_item), NULL);
cal_view = ea_calendar_helpers_get_cal_view_from (canvas_item);
if (!cal_view)
return NULL;
if (E_IS_DAY_VIEW (cal_view)) {
gint event_day, event_num;
EDayViewEvent *day_view_event;
EDayView *day_view = E_DAY_VIEW (cal_view);
event_found = e_day_view_find_event_from_item (day_view, canvas_item,
&event_day, &event_num);
if (!event_found)
return NULL;
if (event_day == E_DAY_VIEW_LONG_EVENT) {
/* a long event */
day_view_event = &g_array_index (day_view->long_events,
EDayViewEvent, event_num);
}
else {
/* a main canvas event */
day_view_event = &g_array_index (day_view->events[event_day],
EDayViewEvent, event_num);
}
cal_view_event = (ECalendarViewEvent *) day_view_event;
}
else if (E_IS_WEEK_VIEW (cal_view)) {
gint event_num, span_num;
EWeekViewEvent *week_view_event;
EWeekView *week_view = E_WEEK_VIEW (cal_view);
event_found = e_week_view_find_event_from_item (week_view,
canvas_item,
&event_num,
&span_num);
if (!event_found)
return NULL;
week_view_event = &g_array_index (week_view->events, EWeekViewEvent,
event_num);
cal_view_event = (ECalendarViewEvent *)week_view_event;
}
else {
g_assert_not_reached ();
return NULL;
}
return cal_view_event;
}
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