src/calendar/gui/ea-day-view.c

   1 /*
   2  * This program is free software; you can redistribute it and/or modify it
   3  * under the terms of the GNU Lesser General Public License as published by
   4  * the Free Software Foundation.
   5  *
   6  * This program is distributed in the hope that it will be useful, but
   7  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   8  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
   9  * for more details.
  10  *
  11  * You should have received a copy of the GNU Lesser General Public License
  12  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  13  *
  14  *
  15  * Authors:
  16  *              Bolian Yin <bolian.yin@sun.com>
  17  *
  18  * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
  19  *
  20  */
  21
  22 #include "evolution-config.h"
  23
  24 #include "ea-day-view.h"
  25 #include "ea-cal-view-event.h"
  26
  27 #include "ea-calendar-helpers.h"
  28 #include <glib/gi18n.h>
  29
  30 static const gchar * ea_day_view_get_name (AtkObject *accessible);
  31 static const gchar * ea_day_view_get_description (AtkObject *accessible);
  32 static gint         ea_day_view_get_n_children      (AtkObject *obj);
  33 static AtkObject *   ea_day_view_ref_child           (AtkObject *obj,
  34                                                      gint i);
  35 static gpointer parent_class = NULL;
  36
  37 G_DEFINE_TYPE (EaDayView, ea_day_view, EA_TYPE_CAL_VIEW)
  38
  39 static void
  40 ea_day_view_init (EaDayView *view)
  41 {
  42 }
  43
  44 static void
  45 ea_day_view_class_init (EaDayViewClass *klass)
  46 {
  47         AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
  48
  49         parent_class = g_type_class_peek_parent (klass);
  50
  51         class->get_name = ea_day_view_get_name;
  52         class->get_description = ea_day_view_get_description;
  53
  54         class->get_n_children = ea_day_view_get_n_children;
  55         class->ref_child = ea_day_view_ref_child;
  56 }
  57
  58 AtkObject *
  59 ea_day_view_new (GtkWidget *widget)
  60 {
  61         GObject *object;
  62         AtkObject *accessible;
  63
  64         g_return_val_if_fail (E_IS_DAY_VIEW (widget), NULL);
  65
  66         object = g_object_new (EA_TYPE_DAY_VIEW, NULL);
  67
  68         accessible = ATK_OBJECT (object);
  69         atk_object_initialize (accessible, widget);
  70
  71 #ifdef ACC_DEBUG
  72         printf ("EvoAcc: ea_day_view created %p\n", (gpointer) accessible);
  73 #endif
  74
  75         return accessible;
  76 }
  77
  78 static const gchar *
  79 ea_day_view_get_name (AtkObject *accessible)
  80 {
  81         EDayView *day_view;
  82         gchar *label_text;
  83         GtkWidget *widget;
  84         gint n_events;
  85         gchar *event_str, *name_str;
  86
  87         g_return_val_if_fail (EA_IS_DAY_VIEW (accessible), NULL);
  88
  89         widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (accessible));
  90         if (widget == NULL)
  91                 return NULL;
  92
  93         day_view = E_DAY_VIEW (widget);
  94
  95         label_text = e_calendar_view_get_description_text (E_CALENDAR_VIEW (day_view));
  96
  97         n_events = atk_object_get_n_accessible_children (accessible);
  98         /* the child main item is always there */
  99         --n_events;
 100         if (n_events >= 1)
 101                 event_str = g_strdup_printf (
 102                         ngettext (
 103                                 /* To translators: Here, "It" is either like "Work Week View: July
 104                                 10th - July 14th, 2006." or "Day View: Thursday July 13th, 2006." */
 105                                 "It has %d event.",
 106                                 "It has %d events.",
 107                                 n_events),
 108                         n_events);
 109         else
 110                 /* To translators: Here, "It" is either like "Work Week View: July
 111                 10th - July 14th, 2006." or "Day View: Thursday July 13th, 2006." */
 112                 event_str = g_strdup (_("It has no events."));
 113
 114         if (e_day_view_get_work_week_view (day_view))
 115                 name_str = g_strdup_printf (
 116                         /* To translators: First %s is the week, for example "July 10th -
 117                         July 14th, 2006". Second %s is the number of events in this work
 118                         week, for example "It has %d event/events." or  "It has no events." */
 119                         _("Work Week View: %s. %s"),
 120                         label_text, event_str);
 121         else
 122                 name_str = g_strdup_printf (
 123                         /* To translators: First %s is the day, for example "Thursday July
 124                         13th, 2006". Second %s is the number of events on this day, for
 125                         example "It has %d event/events." or  "It has no events." */
 126                         _("Day View: %s. %s"),
 127                         label_text, event_str);
 128
 129         ATK_OBJECT_CLASS (parent_class)->set_name (accessible, name_str);
 130         g_free (name_str);
 131         g_free (event_str);
 132         g_free (label_text);
 133
 134         return accessible->name;
 135 }
 136
 137 static const gchar *
 138 ea_day_view_get_description (AtkObject *accessible)
 139 {
 140         EDayView *day_view;
 141         GtkWidget *widget;
 142
 143         g_return_val_if_fail (EA_IS_DAY_VIEW (accessible), NULL);
 144
 145         widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (accessible));
 146         if (widget == NULL)
 147                 return NULL;
 148
 149         day_view = E_DAY_VIEW (widget);
 150
 151         if (accessible->description)
 152                 return accessible->description;
 153         else {
 154                 if (e_day_view_get_work_week_view (day_view))
 155                         return _("calendar view for a work week");
 156                 else
 157                         return _("calendar view for one or more days");
 158         }
 159 }
 160
 161 static gint
 162 ea_day_view_get_n_children (AtkObject *accessible)
 163 {
 164         EDayView *day_view;
 165         GtkWidget *widget;
 166         gint day;
 167         gint days_shown;
 168         gint child_num = 0;
 169
 170         g_return_val_if_fail (EA_IS_DAY_VIEW (accessible), -1);
 171
 172         widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (accessible));
 173         if (widget == NULL)
 174                 return -1;
 175
 176         day_view = E_DAY_VIEW (widget);
 177         days_shown = e_day_view_get_days_shown (day_view);
 178
 179         child_num += day_view->long_events->len;
 180
 181         for (day = 0; day < days_shown; day++) {
 182                 child_num += day_view->events[day]->len;
 183         }
 184
 185         /* "+1" for the main item */
 186         return child_num + 1;
 187 }
 188
 189 static AtkObject *
 190 ea_day_view_ref_child (AtkObject *accessible,
 191                        gint index)
 192 {
 193         EDayView *day_view;
 194         gint child_num;
 195         gint day;
 196         AtkObject *atk_object = NULL;
 197         EDayViewEvent *event = NULL;
 198         GtkWidget *widget;
 199
 200         g_return_val_if_fail (EA_IS_DAY_VIEW (accessible), NULL);
 201
 202         child_num = atk_object_get_n_accessible_children (accessible);
 203         if (child_num <= 0 || index < 0 || index >= child_num)
 204                 return NULL;
 205
 206         widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (accessible));
 207         if (widget == NULL)
 208                 return NULL;
 209
 210         day_view = E_DAY_VIEW (widget);
 211
 212         if (index == 0) {
 213                 /* index == 0 is the main item */
 214                 atk_object = atk_gobject_accessible_for_object (
 215                         G_OBJECT (day_view->main_canvas_item));
 216                 g_object_ref (atk_object);
 217         }
 218         else {
 219                 --index;
 220                 /* a long event */
 221                 if (index < day_view->long_events->len) {
 222                         event = &g_array_index (day_view->long_events,
 223                                                 EDayViewEvent, index);
 224                 }
 225                 else {
 226                         index -= day_view->long_events->len;
 227                         day = 0;
 228                         while (index >= day_view->events[day]->len) {
 229                                 index -= day_view->events[day]->len;
 230                                 ++day;
 231                         }
 232
 233                         event = &g_array_index (day_view->events[day],
 234                                                 EDayViewEvent, index);
 235                 }
 236                 if (event && event->canvas_item) {
 237                         /* Not use atk_gobject_accessible_for_object here,
 238                          * we need to do special thing here
 239                          */
 240                         atk_object = ea_calendar_helpers_get_accessible_for (
 241                                 event->canvas_item);
 242                         g_object_ref (atk_object);
 243                 }
 244         }
 245         return atk_object;
 246 }