src/plugins/vcalendar/day-view.c

   1 /*
   2  * Claws Mail -- a GTK+ based, lightweight, and fast e-mail client
   3  *
   4  * Copyright (c) 2007-2008 Juha Kautto (juha at xfce.org)
   5  * Copyright (c) 2008 Colin Leroy (colin@colino.net)
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 3 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  20  */
  21
  22 #ifdef HAVE_CONFIG_H
  23 #  include "config.h"
  24 #include "claws-features.h"
  25 #endif
  26
  27 #include <stddef.h>
  28 #include <glib.h>
  29 #include <glib/gi18n.h>
  30 #include "defs.h"
  31
  32 #ifdef USE_PTHREAD
  33 #include <pthread.h>
  34 #endif
  35 #include <string.h>
  36 #include <time.h>
  37
  38 #include <glib.h>
  39 #include <glib/gprintf.h>
  40 #include <gdk/gdkkeysyms.h>
  41 #include <gdk/gdk.h>
  42 #include <gtk/gtk.h>
  43
  44 #include "summaryview.h"
  45 #include "vcalendar.h"
  46 #include "vcal_folder.h"
  47 #include "vcal_prefs.h"
  48 #include "vcal_manager.h"
  49 #include "common-views.h"
  50 #include "vcal_meeting_gtk.h"
  51
  52 #define MAX_DAYS 40
  53 struct _day_win
  54 {
  55     GtkAccelGroup *accel_group;
  56
  57     GtkWidget *Window;
  58     GtkWidget *Vbox;
  59
  60     GtkWidget *Menubar;
  61     GtkWidget *File_menu;
  62     GtkWidget *File_menu_new;
  63     GtkWidget *File_menu_close;
  64     GtkWidget *View_menu;
  65     GtkWidget *View_menu_refresh;
  66     GtkWidget *Go_menu;
  67     GtkWidget *Go_menu_today;
  68     GtkWidget *Go_menu_prev;
  69     GtkWidget *Go_menu_next;
  70
  71     GtkWidget *Toolbar;
  72     GtkWidget *Create_toolbutton;
  73     GtkWidget *Previous_toolbutton;
  74     GtkWidget *Today_toolbutton;
  75     GtkWidget *Next_toolbutton;
  76     GtkWidget *Refresh_toolbutton;
  77     GtkWidget *Close_toolbutton;
  78
  79     GtkWidget *StartDate_button;
  80     GtkRequisition StartDate_button_req;
  81     GtkWidget *day_spin;
  82
  83     GtkWidget *day_view_vbox;
  84     GtkWidget *scroll_win_h;
  85     GtkWidget *dtable_h; /* header of day table */
  86     GtkWidget *scroll_win;
  87     GtkWidget *dtable;   /* day table */
  88     GtkRequisition hour_req;
  89
  90     GtkWidget *header[MAX_DAYS];
  91     GtkWidget *element[24][MAX_DAYS];
  92     GtkWidget *line[24][MAX_DAYS];
  93
  94     guint upd_timer;
  95     gdouble scroll_pos; /* remember the scroll position */
  96
  97     GdkColor bg1, bg2, line_color, bg_today, fg_sunday;
  98     GList    *apptw_list; /* keep track of appointments being updated */
  99     struct tm startdate;
 100     FolderItem *item;
 101     gulong selsig;
 102     GtkWidget *view_menu;
 103     GtkWidget *event_menu;
 104     GtkActionGroup *event_group;
 105     GtkUIManager *ui_manager;
 106 };
 107
 108 static gchar *get_locale_date(struct tm *tmdate)
 109 {
 110         gchar *d = g_malloc(100);
 111         strftime(d, 99, "%x", tmdate);
 112         return d;
 113 }
 114
 115 static void set_scroll_position(day_win *dw)
 116 {
 117     GtkAdjustment *v_adj;
 118
 119     v_adj = gtk_scrolled_window_get_vadjustment(
 120             GTK_SCROLLED_WINDOW(dw->scroll_win));
 121     if (dw->scroll_pos > 0) /* we have old value */
 122         gtk_adjustment_set_value(v_adj, dw->scroll_pos);
 123     else if (dw->scroll_pos < 0)
 124         /* default: let's try to start roughly from line 8 = 8 o'clock */
 125         gtk_adjustment_set_value(v_adj, v_adj->upper/3);
 126     gtk_adjustment_changed(v_adj);
 127 }
 128
 129 static gboolean scroll_position_timer(gpointer user_data)
 130 {
 131     set_scroll_position((day_win *)user_data);
 132     return(FALSE); /* only once */
 133 }
 134
 135 static void get_scroll_position(day_win *dw)
 136 {
 137     GtkAdjustment *v_adj;
 138
 139     v_adj = gtk_scrolled_window_get_vadjustment(
 140             GTK_SCROLLED_WINDOW(dw->scroll_win));
 141     dw->scroll_pos = gtk_adjustment_get_value(v_adj);
 142 }
 143
 144 void dw_close_window(day_win *dw)
 145 {
 146     vcal_view_set_summary_page(dw->Vbox, dw->selsig);
 147
 148     g_free(dw);
 149     dw = NULL;
 150 }
 151
 152 static char *orage_tm_date_to_i18_date(struct tm *tm_date)
 153 {
 154     static char i18_date[32];
 155
 156     if (strftime(i18_date, 32, "%x", tm_date) == 0)
 157         g_error("Orage: orage_tm_date_to_i18_date too long string in strftime");
 158     return(i18_date);
 159 }
 160
 161 static void changeSelectedDate(day_win *dw, gint day)
 162 {
 163     if (day > 0) {
 164      do {
 165       orage_move_day(&(dw->startdate), 1);
 166      } while (--day > 0);
 167     } else {
 168      do {
 169       orage_move_day(&(dw->startdate), -1);
 170      } while (++day < 0);
 171     }
 172 }
 173
 174 static gint on_Previous_clicked(GtkWidget *button, GdkEventButton *event,
 175                                     day_win *dw)
 176 {
 177     int days = gtk_spin_button_get_value_as_int(GTK_SPIN_BUTTON(dw->day_spin));
 178     changeSelectedDate(dw, -days);
 179     refresh_day_win(dw);
 180     return TRUE;
 181 }
 182
 183 static gint on_Next_clicked(GtkWidget *button, GdkEventButton *event,
 184                                     day_win *dw)
 185 {
 186     int days = gtk_spin_button_get_value_as_int(GTK_SPIN_BUTTON(dw->day_spin));
 187     changeSelectedDate(dw, +days);
 188     refresh_day_win(dw);
 189     return TRUE;
 190 }
 191
 192 static void dw_summary_selected(GtkCMCTree *ctree, GtkCMCTreeNode *row,
 193                              gint column, day_win *dw)
 194 {
 195         MsgInfo *msginfo = gtk_cmctree_node_get_row_data(ctree, row);
 196         int days = gtk_spin_button_get_value_as_int(GTK_SPIN_BUTTON(dw->day_spin));
 197
 198         if (msginfo && msginfo->msgid) {
 199                 VCalEvent *event = vcal_manager_load_event(msginfo->msgid);
 200                 if (event) {
 201                         time_t t_first = mktime(&dw->startdate);
 202                         time_t t_start = icaltime_as_timet(icaltime_from_string(event->dtstart));
 203                         struct tm tm_start;
 204                         gboolean changed = FALSE;
 205                         GtkAdjustment *v_adj;
 206
 207 #ifdef G_OS_WIN32
 208                         if (t_start < 0)
 209                                 t_start = 1;
 210 #endif
 211                         localtime_r(&t_start, &tm_start);
 212                         tm_start.tm_hour = tm_start.tm_min = tm_start.tm_sec = 0;
 213                         t_start = mktime(&tm_start);
 214
 215                         while (t_start < t_first) {
 216                                 changeSelectedDate(dw, -days);
 217                                 t_first = mktime(&dw->startdate);
 218                                 changed = TRUE;
 219                         }
 220                         while (t_start > t_first + (days-1)*24*60*60) {
 221                                 changeSelectedDate(dw, +days);
 222                                 t_first = mktime(&dw->startdate);
 223                                 changed = TRUE;
 224                         }
 225
 226                         t_start = icaltime_as_timet(icaltime_from_string(event->dtstart));
 227 #ifdef G_OS_WIN32
 228                         if (t_start < 0)
 229                                 t_start = 1;
 230 #endif
 231                         localtime_r(&t_start, &tm_start);
 232                         if (changed) {
 233                                 debug_print("changed from %s\n", event->summary);
 234                                 v_adj = gtk_scrolled_window_get_vadjustment(
 235                                     GTK_SCROLLED_WINDOW(dw->scroll_win));
 236 #ifdef G_OS_WIN32
 237                                 if (t_start < 0)
 238                                         t_start = 1;
 239 #endif
 240                                 localtime_r(&t_start, &tm_start);
 241                                 if (tm_start.tm_hour > 2)
 242                                         gtk_adjustment_set_value(v_adj,
 243                                                 ((v_adj->upper-v_adj->page_size)/(gdouble)(24/(tm_start.tm_hour-2))));
 244                                 else
 245                                         gtk_adjustment_set_value(v_adj, 0);
 246                                 gtk_adjustment_changed(v_adj);
 247                                 refresh_day_win(dw);
 248                         }
 249                 }
 250                 vcal_manager_free_event(event);
 251         }
 252 }
 253
 254 static void day_view_new_meeting_cb(day_win *dw, gpointer data_i, gpointer data_s)
 255 {
 256     int offset = GPOINTER_TO_INT(data_i);
 257     struct tm tm_date = dw->startdate;
 258     int offset_h = offset % 1000;
 259     int offset_d = (offset-offset_h) / 1000;
 260     guint monthdays[12] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
 261     int mon = tm_date.tm_mon;
 262
 263     if (((tm_date.tm_year%4) == 0) && (((tm_date.tm_year%100) != 0)
 264             || ((tm_date.tm_year%400) == 0)))
 265         monthdays[1] = 29;
 266
 267     if (offset_d > (int)monthdays[mon]) {
 268         while (tm_date.tm_mday > 1)
 269                 orage_move_day(&tm_date, 1);
 270         offset_d -= monthdays[mon];
 271     }
 272
 273     while (offset_d > tm_date.tm_mday) {
 274             orage_move_day(&tm_date, 1);
 275     }
 276     while (offset_d < tm_date.tm_mday) {
 277             orage_move_day(&tm_date, -1);
 278     }
 279     tm_date.tm_hour = offset_h;
 280     vcal_meeting_create_with_start(NULL, &tm_date);
 281 }
 282
 283 static void day_view_edit_meeting_cb(day_win *dw, gpointer data_i, gpointer data_s)
 284 {
 285         const gchar *uid = (gchar *)data_s;
 286         vcal_view_select_event (uid, dw->item, TRUE,
 287                             G_CALLBACK(dw_summary_selected), dw);
 288 }
 289
 290 static void day_view_cancel_meeting_cb(day_win *dw, gpointer data_i, gpointer data_s)
 291 {
 292         const gchar *uid = (gchar *)data_s;
 293         vcalendar_cancel_meeting(dw->item, uid);
 294 }
 295
 296 static void day_view_today_cb(day_win *dw, gpointer data_i, gpointer data_s)
 297 {
 298     time_t now = time(NULL);
 299     struct tm tm_today;
 300     localtime_r(&now, &tm_today);
 301
 302     while (tm_today.tm_wday != 1)
 303         orage_move_day(&tm_today, -1);
 304
 305     dw->startdate = tm_today;
 306     refresh_day_win(dw);
 307 }
 308
 309 static void header_button_clicked_cb(GtkWidget *button, day_win *dw)
 310 {
 311     int offset = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(button), "offset"));
 312
 313     day_view_new_meeting_cb(dw, GINT_TO_POINTER(offset), NULL);
 314 }
 315
 316 static void on_button_press_event_cb(GtkWidget *widget
 317         , GdkEventButton *event, gpointer *user_data)
 318 {
 319     day_win *dw = (day_win *)user_data;
 320     gchar *uid = g_object_get_data(G_OBJECT(widget), "UID");
 321     gpointer offset = g_object_get_data(G_OBJECT(widget), "offset");
 322
 323     if (event->button == 1) {
 324         if (uid)
 325             vcal_view_select_event (uid, dw->item, (event->type==GDK_2BUTTON_PRESS),
 326                             G_CALLBACK(dw_summary_selected), dw);
 327     }
 328     if (event->button == 3) {
 329             g_object_set_data(G_OBJECT(dw->Vbox), "menu_win",
 330                       dw);
 331             g_object_set_data(G_OBJECT(dw->Vbox), "menu_data_i",
 332                       offset);
 333             g_object_set_data(G_OBJECT(dw->Vbox), "menu_data_s",
 334                       uid);
 335             g_object_set_data(G_OBJECT(dw->Vbox), "new_meeting_cb",
 336                       day_view_new_meeting_cb);
 337             g_object_set_data(G_OBJECT(dw->Vbox), "edit_meeting_cb",
 338                       day_view_edit_meeting_cb);
 339             g_object_set_data(G_OBJECT(dw->Vbox), "cancel_meeting_cb",
 340                       day_view_cancel_meeting_cb);
 341             g_object_set_data(G_OBJECT(dw->Vbox), "go_today_cb",
 342                       day_view_today_cb);
 343             if (uid)
 344                     gtk_menu_popup(GTK_MENU(dw->event_menu),
 345                            NULL, NULL, NULL, NULL,
 346                            event->button, event->time);
 347             else
 348                     gtk_menu_popup(GTK_MENU(dw->view_menu),
 349                            NULL, NULL, NULL, NULL,
 350                            event->button, event->time);
 351     }
 352 }
 353
 354 static void add_row(day_win *dw, VCalEvent *event, gint days)
 355 {
 356     gint row, start_row, end_row;
 357     gint col, start_col, end_col, first_col, last_col;
 358     gint height, start_height, end_height;
 359     gchar *text, *tip, *start_date, *end_date;
 360     GtkWidget *ev, *lab, *hb;
 361     time_t t_start, t_end;
 362     struct tm tm_first, tm_start, tm_end;
 363
 364     /* First clarify timings */
 365     t_start = icaltime_as_timet(icaltime_from_string(event->dtstart));
 366     if (event->dtend && *event->dtend)
 367         t_end = icaltime_as_timet(icaltime_from_string(event->dtend));
 368     else
 369         t_end = t_start;
 370
 371 #ifdef G_OS_WIN32
 372         if (t_start < 0)
 373                 t_start = 1;
 374         if (t_end < 0)
 375                 t_end = 1;
 376 #endif
 377     localtime_r(&t_start, &tm_start);
 378     localtime_r(&t_end, &tm_end);
 379     tm_first = dw->startdate;
 380
 381     tm_first.tm_year += 1900;
 382     tm_first.tm_mon += 1;
 383     tm_start.tm_year += 1900;
 384     tm_start.tm_mon += 1;
 385     tm_end.tm_year += 1900;
 386     tm_end.tm_mon += 1;
 387
 388     start_col = orage_days_between(&tm_first, &tm_start)+1;
 389     end_col   = orage_days_between(&tm_first, &tm_end)+1;
 390
 391     if (end_col < 1)
 392         return;
 393     if (start_col > days)
 394         return;
 395
 396     else {
 397         col = start_col;
 398         row = tm_start.tm_hour;
 399     }
 400
 401     /* then add the appointment */
 402     text = g_strdup(event->summary?event->summary : _("Unknown"));
 403     ev = gtk_event_box_new();
 404     lab = gtk_label_new(text);
 405     gtk_misc_set_alignment(GTK_MISC(lab), 0.0, 0.5);
 406     gtk_label_set_ellipsize(GTK_LABEL(lab), PANGO_ELLIPSIZE_END);
 407     gtk_container_add(GTK_CONTAINER(ev), lab);
 408
 409     if ((row % 2) == 1)
 410         gtk_widget_modify_bg(ev, GTK_STATE_NORMAL, &dw->bg1);
 411     else
 412         gtk_widget_modify_bg(ev, GTK_STATE_NORMAL, &dw->bg2);
 413     if (dw->element[row][col] == NULL) {
 414         hb = gtk_hbox_new(TRUE, 3);
 415         dw->element[row][col] = hb;
 416     }
 417     else {
 418         hb = dw->element[row][col];
 419         /* FIXME: set some real bar here to make it visible that we
 420          * have more than 1 appointment here
 421          */
 422     }
 423     if (orage_days_between(&tm_start, &tm_end) == 0)
 424         tip = g_strdup_printf("%s\n%02d:%02d-%02d:%02d\n%s"
 425                 , text, tm_start.tm_hour, tm_start.tm_min
 426                 , tm_end.tm_hour, tm_end.tm_min, event->description);
 427     else {
 428 /* we took the date in unnormalized format, so we need to do that now */
 429         start_date = g_strdup(orage_tm_date_to_i18_date(&tm_start));
 430         end_date = g_strdup(orage_tm_date_to_i18_date(&tm_end));
 431         tip = g_strdup_printf("%s\n%s %02d:%02d - %s %02d:%02d\n%s"
 432                 , text
 433                 , start_date, tm_start.tm_hour, tm_start.tm_min
 434                 , end_date, tm_end.tm_hour, tm_end.tm_min
 435                 , event->description);
 436         g_free(start_date);
 437         g_free(end_date);
 438     }
 439     CLAWS_SET_TIP(ev, tip);
 440     /*
 441     gtk_box_pack_start(GTK_BOX(hb2), ev, FALSE, FALSE, 0);
 442     gtk_box_pack_start(GTK_BOX(hb), hb2, TRUE, TRUE, 0);
 443     */
 444     gtk_box_pack_start(GTK_BOX(hb), ev, TRUE, TRUE, 0);
 445     g_object_set_data_full(G_OBJECT(ev), "UID", g_strdup(event->uid), g_free);
 446     g_object_set_data(G_OBJECT(ev), "offset", GINT_TO_POINTER(tm_start.tm_mday*1000 + tm_start.tm_hour));
 447     g_signal_connect((gpointer)ev, "button-press-event"
 448             , G_CALLBACK(on_button_press_event_cb), dw);
 449     g_free(tip);
 450     g_free(text);
 451
 452     /* and finally draw the line to show how long the appointment is,
 453      * but only if it is Busy type event (=availability != 0)
 454      * and it is not whole day event */
 455     if (TRUE) {
 456         height = dw->StartDate_button_req.height;
 457         /*
 458          * same_date = !strncmp(start_ical_time, end_ical_time, 8);
 459          * */
 460         if (start_col < 1)
 461             first_col = 1;
 462         else
 463             first_col = start_col;
 464         if (end_col > days)
 465             last_col = days;
 466         else
 467             last_col = end_col;
 468         for (col = first_col; col <= last_col; col++) {
 469             if (col == start_col)
 470                 start_row = tm_start.tm_hour;
 471             else
 472                 start_row = 0;
 473             if (col == end_col)
 474                 end_row   = tm_end.tm_hour;
 475             else
 476                 end_row   = 23;
 477             for (row = start_row; row <= end_row; row++) {
 478                 if (row == tm_start.tm_hour && col == start_col)
 479                     start_height = tm_start.tm_min*height/60;
 480                 else
 481                     start_height = 0;
 482                 if (row == tm_end.tm_hour && col == end_col)
 483                     end_height = tm_end.tm_min*height/60;
 484                 else
 485                     end_height = height;
 486                 dw->line[row][col] = build_line(1, start_height
 487                         , 2, end_height-start_height, dw->line[row][col]
 488                         , &dw->line_color);
 489             }
 490         }
 491     }
 492 }
 493
 494 static void app_rows(day_win *dw, FolderItem *item)
 495 {
 496    GSList *events = vcal_get_events_list(item);
 497    GSList *cur = NULL;
 498    int days = gtk_spin_button_get_value_as_int(GTK_SPIN_BUTTON(dw->day_spin));
 499    for (cur = events; cur ; cur = cur->next) {
 500         VCalEvent *event = (VCalEvent *) (cur->data);
 501         add_row(dw, event, days);
 502         vcal_manager_free_event(event);
 503    }
 504    g_slist_free(events);
 505 }
 506
 507 static void app_data(day_win *dw, FolderItem *item)
 508 {
 509     app_rows(dw, item);
 510 }
 511
 512
 513 static void fill_days(day_win *dw, gint days, FolderItem *item, gint first_col_day)
 514 {
 515     gint row, col, height, width;
 516     GtkWidget *ev, *hb;
 517
 518     height = dw->StartDate_button_req.height;
 519     width = dw->StartDate_button_req.width;
 520
 521     /* first clear the structure */
 522     for (col = 1; col <  days+1; col++) {
 523         dw->header[col] = NULL;
 524         for (row = 0; row < 24; row++) {
 525             dw->element[row][col] = NULL;
 526     /* gdk_draw_rectangle(, , , left_x, top_y, width, height); */
 527             dw->line[row][col] = build_line(0, 0, 3, height, NULL
 528                         , &dw->line_color);
 529         }
 530     }
 531
 532     app_data(dw, item);
 533
 534     for (col = 1; col < days+1; col++) {
 535         hb = gtk_hbox_new(FALSE, 0);
 536         /* check if we have full day events and put them to header */
 537         if (dw->header[col]) {
 538             gtk_box_pack_start(GTK_BOX(hb), dw->header[col], TRUE, TRUE, 0);
 539             gtk_widget_set_size_request(hb, width, -1);
 540         }
 541         else {
 542             ev = gtk_event_box_new();
 543             gtk_widget_modify_bg(ev, GTK_STATE_NORMAL, &dw->bg2);
 544             gtk_box_pack_start(GTK_BOX(hb), ev, TRUE, TRUE, 0);
 545         }
 546         gtk_table_attach(GTK_TABLE(dw->dtable_h), hb, col, col+1, 1, 2
 547                  , (GTK_FILL), (0), 0, 0);
 548
 549         /* check rows */
 550         for (row = 0; row < 24; row++) {
 551             hb = gtk_hbox_new(FALSE, 0);
 552             if (row == 0)
 553                 gtk_widget_set_size_request(hb, width, -1);
 554             if (dw->element[row][col]) {
 555                 gtk_box_pack_start(GTK_BOX(hb), dw->line[row][col]
 556                         , FALSE, FALSE, 0);
 557                 gtk_box_pack_start(GTK_BOX(hb), dw->element[row][col]
 558                         , TRUE, TRUE, 0);
 559                 gtk_widget_set_size_request(hb, width, -1);
 560             }
 561             else {
 562                 ev = gtk_event_box_new();
 563                 g_object_set_data(G_OBJECT(ev), "offset", GINT_TO_POINTER(first_col_day*1000 + row));
 564                 g_signal_connect((gpointer)ev, "button-press-event"
 565                         , G_CALLBACK(on_button_press_event_cb), dw);
 566                 /*
 567                 name = gtk_label_new(" ");
 568                 gtk_container_add(GTK_CONTAINER(ev), name);
 569                 */
 570                 if ((row % 2) == 1)
 571                     gtk_widget_modify_bg(ev, GTK_STATE_NORMAL, &dw->bg1);
 572                 else
 573                     gtk_widget_modify_bg(ev, GTK_STATE_NORMAL, &dw->bg2);
 574                 gtk_box_pack_start(GTK_BOX(hb), dw->line[row][col]
 575                         , FALSE, FALSE, 0);
 576                 gtk_box_pack_start(GTK_BOX(hb), ev, TRUE, TRUE, 0);
 577             }
 578             gtk_table_attach(GTK_TABLE(dw->dtable), hb, col, col+1, row, row+1
 579                      , (GTK_FILL), (0), 0, 0);
 580         }
 581         first_col_day++;
 582     }
 583 }
 584
 585 static void build_day_view_header(day_win *dw, char *start_date)
 586 {
 587     GtkWidget *hbox, *label, *space_label;
 588     SummaryView *summaryview = NULL;
 589     int avail_w = 0, avail_d = 0;
 590
 591     hbox = gtk_hbox_new(FALSE, 0);
 592
 593     label = gtk_label_new(_("Start"));
 594     gtk_box_pack_start(GTK_BOX(hbox), label, FALSE, FALSE, 10);
 595
 596     /* start date button */
 597     dw->StartDate_button = gtk_button_new();
 598     gtk_box_pack_start(GTK_BOX(hbox), dw->StartDate_button, FALSE, FALSE, 0);
 599
 600     space_label = gtk_label_new("  ");
 601     gtk_box_pack_start(GTK_BOX(hbox), space_label, FALSE, FALSE, 0);
 602
 603     space_label = gtk_label_new("     ");
 604     gtk_box_pack_start(GTK_BOX(hbox), space_label, FALSE, FALSE, 0);
 605
 606     label = gtk_label_new(_("Show"));
 607     gtk_box_pack_start(GTK_BOX(hbox), label, FALSE, FALSE, 10);
 608
 609     /* show days spin = how many days to show */
 610     dw->day_spin = gtk_spin_button_new_with_range(1, MAX_DAYS, 1);
 611     gtk_spin_button_set_wrap(GTK_SPIN_BUTTON(dw->day_spin), TRUE);
 612     gtk_widget_set_size_request(dw->day_spin, 40, -1);
 613     gtk_box_pack_start(GTK_BOX(hbox), dw->day_spin, FALSE, FALSE, 0);
 614     label = gtk_label_new(_("days"));
 615     gtk_box_pack_start(GTK_BOX(hbox), label, FALSE, FALSE, 5);
 616
 617     space_label = gtk_label_new("   ");
 618     gtk_box_pack_start(GTK_BOX(hbox), space_label, FALSE, FALSE, 0);
 619
 620     /* sizes */
 621     gtk_button_set_label(GTK_BUTTON(dw->StartDate_button)
 622             , (const gchar *)start_date);
 623     gtk_widget_size_request(dw->StartDate_button, &dw->StartDate_button_req);
 624     dw->StartDate_button_req.width += dw->StartDate_button_req.width/10;
 625     label = gtk_label_new("00");
 626     gtk_widget_size_request(label, &dw->hour_req);
 627
 628     if (mainwindow_get_mainwindow()) {
 629         GtkAllocation allocation;
 630         summaryview = mainwindow_get_mainwindow()->summaryview;
 631         allocation = summaryview->mainwidget_book->allocation;
 632
 633         avail_w = allocation.width - 20 - 2*(dw->hour_req.width);
 634         avail_d = avail_w / dw->StartDate_button_req.width;
 635     }
 636     if (avail_d >= 7) {
 637         avail_d = 7;
 638         gtk_widget_set_size_request(dw->StartDate_button, avail_w / avail_d, -1);
 639         gtk_widget_size_request(dw->StartDate_button, &dw->StartDate_button_req);
 640     }
 641
 642     /* initial values */
 643     if (avail_d)
 644         gtk_spin_button_set_value(GTK_SPIN_BUTTON(dw->day_spin), avail_d);
 645
 646 }
 647
 648 static void build_day_view_colours(day_win *dw)
 649 {
 650     GtkStyle *def_style;
 651     GdkColormap *pic1_cmap;
 652     GtkWidget *ctree = NULL;
 653     def_style = gtk_widget_get_default_style();
 654     pic1_cmap = gdk_colormap_get_system();
 655
 656     if (mainwindow_get_mainwindow()) {
 657         ctree = mainwindow_get_mainwindow()->summaryview->ctree;
 658     }
 659     if (ctree) {
 660         dw->bg1 = ctree->style->bg[GTK_STATE_NORMAL];
 661         dw->bg2 = ctree->style->bg[GTK_STATE_NORMAL];
 662     } else {
 663         dw->bg1 = def_style->bg[GTK_STATE_NORMAL];
 664         dw->bg2 = def_style->bg[GTK_STATE_NORMAL];
 665     }
 666     dw->bg1.red +=  (dw->bg1.red < 63000 ? 2000 : -2000);
 667     dw->bg1.green += (dw->bg1.green < 63000 ? 2000 : -2000);
 668     dw->bg1.blue += (dw->bg1.blue < 63000 ? 2000 : -2000);
 669     gdk_colormap_alloc_color(pic1_cmap, &dw->bg1, FALSE, TRUE);
 670
 671     dw->bg2.red +=  (dw->bg2.red > 1000 ? -1000 : 1000);
 672     dw->bg2.green += (dw->bg2.green > 1000 ? -1000 : 1000);
 673     dw->bg2.blue += (dw->bg2.blue > 1000 ? -1000 : 1000);
 674     gdk_colormap_alloc_color(pic1_cmap, &dw->bg2, FALSE, TRUE);
 675
 676     if (!gdk_color_parse("white", &dw->line_color)) {
 677         g_warning("color parse failed: white");
 678         dw->line_color.red =  239 * (65535/255);
 679         dw->line_color.green = 235 * (65535/255);
 680         dw->line_color.blue = 230 * (65535/255);
 681     }
 682
 683     if (!gdk_color_parse("blue", &dw->fg_sunday)) {
 684         g_warning("color parse failed: blue");
 685         dw->fg_sunday.red = 10 * (65535/255);
 686         dw->fg_sunday.green = 10 * (65535/255);
 687         dw->fg_sunday.blue = 255 * (65535/255);
 688     }
 689
 690     if (!gdk_color_parse("gold", &dw->bg_today)) {
 691         g_warning("color parse failed: gold");
 692         dw->bg_today.red = 255 * (65535/255);
 693         dw->bg_today.green = 215 * (65535/255);
 694         dw->bg_today.blue = 115 * (65535/255);
 695     }
 696
 697     if (ctree) {
 698         dw->fg_sunday.red = (dw->fg_sunday.red + ctree->style->fg[GTK_STATE_SELECTED].red)/2;
 699         dw->fg_sunday.green = (dw->fg_sunday.green + ctree->style->fg[GTK_STATE_SELECTED].red)/2;
 700         dw->fg_sunday.blue = (3*dw->fg_sunday.blue + ctree->style->fg[GTK_STATE_SELECTED].red)/4;
 701         dw->bg_today.red = (3*dw->bg_today.red + ctree->style->bg[GTK_STATE_NORMAL].red)/4;
 702         dw->bg_today.green = (3*dw->bg_today.green + ctree->style->bg[GTK_STATE_NORMAL].red)/4;
 703         dw->bg_today.blue = (3*dw->bg_today.blue + ctree->style->bg[GTK_STATE_NORMAL].red)/4;
 704     }
 705
 706     gdk_colormap_alloc_color(pic1_cmap, &dw->line_color, FALSE, TRUE);
 707     gdk_colormap_alloc_color(pic1_cmap, &dw->fg_sunday, FALSE, TRUE);
 708     gdk_colormap_alloc_color(pic1_cmap, &dw->bg_today, FALSE, TRUE);
 709 }
 710
 711 static void fill_hour(day_win *dw, gint col, gint row, char *text)
 712 {
 713     GtkWidget *name, *ev;
 714
 715     ev = gtk_event_box_new();
 716     name = gtk_label_new(text);
 717     gtk_container_add(GTK_CONTAINER(ev), name);
 718     if ((row % 2) == 1)
 719         gtk_widget_modify_bg(ev, GTK_STATE_NORMAL, &dw->bg1);
 720     else
 721         gtk_widget_modify_bg(ev, GTK_STATE_NORMAL, &dw->bg2);
 722     gtk_widget_set_size_request(ev, dw->hour_req.width
 723             , dw->StartDate_button_req.height);
 724     if (text)
 725         gtk_table_attach(GTK_TABLE(dw->dtable), ev, col, col+1, row, row+1
 726              , (GTK_FILL), (0), 0, 0);
 727     else  /* special, needed for header table full day events */
 728         gtk_table_attach(GTK_TABLE(dw->dtable_h), ev, col, col+1, row, row+1
 729              , (GTK_FILL), (0), 0, 0);
 730 }
 731
 732 static void build_day_view_table(day_win *dw)
 733 {
 734     gint days;   /* number of days to show */
 735     gint i = 0;
 736     GtkWidget *label, *button;
 737     char text[5+1], *date, *today;
 738     struct tm tm_date, tm_today;
 739     guint monthdays[12] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
 740     GtkWidget *vp;
 741     time_t t = time(NULL);
 742     GtkWidget *arrow;
 743     gchar *tip;
 744     gint first_col_day = -1;
 745
 746 #ifdef G_OS_WIN32
 747         if (t < 0)
 748                 t = 1;
 749 #endif
 750     localtime_r(&t, &tm_today);
 751     days = gtk_spin_button_get_value_as_int(GTK_SPIN_BUTTON(dw->day_spin));
 752     today = get_locale_date(&tm_today);
 753     /****** header of day table = days columns ******/
 754     dw->scroll_win_h = gtk_scrolled_window_new(NULL, NULL);
 755     gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(dw->scroll_win_h)
 756             , GTK_POLICY_AUTOMATIC, GTK_POLICY_NEVER);
 757     gtk_box_pack_start(GTK_BOX(dw->Vbox), dw->scroll_win_h
 758             , TRUE, TRUE, 0);
 759     dw->day_view_vbox = gtk_vbox_new(FALSE, 0);
 760     gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(dw->scroll_win_h)
 761             , dw->day_view_vbox);
 762     /*
 763     gtk_container_add(GTK_CONTAINER(dw->scroll_win_h), dw->day_view_vbox);
 764     */
 765     /* row 1= day header buttons
 766      * row 2= full day events after the buttons */
 767     dw->dtable_h = gtk_table_new(2 , days+2, FALSE);
 768     gtk_box_pack_start(GTK_BOX(dw->day_view_vbox), dw->dtable_h
 769             , FALSE, FALSE, 0);
 770
 771     tm_date = dw->startdate;
 772
 773     if (((tm_date.tm_year%4) == 0) && (((tm_date.tm_year%100) != 0)
 774             || ((tm_date.tm_year%400) == 0)))
 775         monthdays[1] = 29;
 776
 777
 778     i=0;
 779     dw->Previous_toolbutton = gtk_event_box_new();
 780     gtk_event_box_set_visible_window(GTK_EVENT_BOX(dw->Previous_toolbutton), FALSE);
 781     gtk_container_set_border_width(GTK_CONTAINER(dw->Previous_toolbutton), 0);
 782     arrow = gtk_arrow_new(GTK_ARROW_LEFT, GTK_SHADOW_NONE);
 783     gtk_container_add(GTK_CONTAINER(dw->Previous_toolbutton), arrow);
 784     gtk_table_attach(GTK_TABLE(dw->dtable_h), dw->Previous_toolbutton, i, i+1, 0, 1
 785                 , (GTK_FILL), (0), 0, 0);
 786     gtk_widget_show_all(dw->Previous_toolbutton);
 787     g_signal_connect((gpointer)dw->Previous_toolbutton, "button_release_event"
 788             , G_CALLBACK(on_Previous_clicked), dw);
 789     tip = g_strdup_printf("Back %d days", days);
 790     CLAWS_SET_TIP(dw->Previous_toolbutton, tip);
 791     g_free(tip);
 792     for (i = 1; i < days+1; i++) {
 793         tip = g_malloc(100);
 794         strftime(tip, 99, "%A %d %B %Y", &tm_date);
 795         if (first_col_day == -1)
 796                 first_col_day = tm_date.tm_mday;
 797         date = get_locale_date(&tm_date);
 798         button = gtk_button_new();
 799         gtk_button_set_label(GTK_BUTTON(button), date);
 800         if (strcmp(today, date) == 0) {
 801             gtk_widget_modify_bg(button, GTK_STATE_NORMAL, &dw->bg_today);
 802         }
 803
 804         if (tm_date.tm_wday % 7 == 0) {
 805             label = gtk_bin_get_child(GTK_BIN(button));
 806             gtk_widget_modify_fg(label, GTK_STATE_NORMAL, &dw->fg_sunday);
 807         }
 808         CLAWS_SET_TIP(button, tip);
 809         g_free(tip);
 810         gtk_widget_set_size_request(button, dw->StartDate_button_req.width, -1);
 811         g_signal_connect((gpointer)button, "clicked"
 812                 , G_CALLBACK(header_button_clicked_cb), dw);
 813         g_object_set_data(G_OBJECT(button), "offset", GINT_TO_POINTER(tm_date.tm_mday*1000));
 814         gtk_table_attach(GTK_TABLE(dw->dtable_h), button, i, i+1, 0, 1
 815                 , (GTK_FILL), (0), 0, 0);
 816
 817         if (++tm_date.tm_mday == (int)(monthdays[tm_date.tm_mon]+1)) {
 818             if (++tm_date.tm_mon == 12) {
 819                 ++tm_date.tm_year;
 820                 tm_date.tm_mon = 0;
 821             }
 822             tm_date.tm_mday = 1;
 823         }
 824         ++tm_date.tm_wday; tm_date.tm_wday %=7;
 825         g_free(date);
 826     }
 827
 828     dw->Next_toolbutton = gtk_event_box_new();
 829     gtk_event_box_set_visible_window(GTK_EVENT_BOX(dw->Next_toolbutton), FALSE);
 830     gtk_container_set_border_width(GTK_CONTAINER(dw->Next_toolbutton), 0);
 831     arrow = gtk_arrow_new(GTK_ARROW_RIGHT, GTK_SHADOW_NONE);
 832     gtk_container_add(GTK_CONTAINER(dw->Next_toolbutton), arrow);
 833     gtk_table_attach(GTK_TABLE(dw->dtable_h), dw->Next_toolbutton, i, i+1, 0, 1
 834                 , (GTK_FILL), (0), 0, 0);
 835     gtk_widget_show_all(dw->Next_toolbutton);
 836     g_signal_connect((gpointer)dw->Next_toolbutton, "button_release_event"
 837             , G_CALLBACK(on_Next_clicked), dw);
 838     tip = g_strdup_printf("Forward %d days", days);
 839     CLAWS_SET_TIP(dw->Next_toolbutton, tip);
 840     g_free(tip);
 841     g_free(today);
 842
 843     /****** body of day table ******/
 844     dw->scroll_win = gtk_scrolled_window_new(NULL, NULL);
 845     gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(dw->scroll_win)
 846             , GTK_SHADOW_NONE);
 847     gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(dw->scroll_win)
 848             , GTK_POLICY_NEVER, GTK_POLICY_ALWAYS);
 849     gtk_scrolled_window_set_placement(GTK_SCROLLED_WINDOW(dw->scroll_win)
 850             , GTK_CORNER_TOP_LEFT);
 851     gtk_box_pack_start(GTK_BOX(dw->day_view_vbox), dw->scroll_win
 852             , TRUE, TRUE, 0);
 853     vp = gtk_viewport_new(NULL, NULL);
 854     gtk_viewport_set_shadow_type(GTK_VIEWPORT(vp), GTK_SHADOW_NONE);
 855     gtk_container_add(GTK_CONTAINER(dw->scroll_win), vp);
 856     dw->dtable = gtk_table_new(24, days+2, FALSE);
 857     gtk_container_add(GTK_CONTAINER(vp), dw->dtable);
 858
 859     gtk_widget_show_all(dw->dtable_h);
 860     /* hours column = hour rows */
 861     for (i = 0; i < 24; i++) {
 862         g_sprintf(text, "%02d", i);
 863         /* ev is needed for background colour */
 864         fill_hour(dw, 0, i, text);
 865         fill_hour(dw, days+1, i, text);
 866     }
 867     fill_days(dw, days, dw->item, first_col_day);
 868 }
 869
 870 void refresh_day_win(day_win *dw)
 871 {
 872     get_scroll_position(dw);
 873     gtk_widget_destroy(dw->scroll_win_h);
 874     build_day_view_table(dw);
 875     gtk_widget_show_all(dw->scroll_win_h);
 876     /* I was not able to get this work without the timer. Ugly yes, but
 877      * it works and does not hurt - much */
 878     g_timeout_add(100, (GSourceFunc)scroll_position_timer, (gpointer)dw);
 879 }
 880
 881 day_win *create_day_win(FolderItem *item, struct tm tmdate)
 882 {
 883     day_win *dw;
 884     char *start_date = get_locale_date(&tmdate);
 885
 886     /* initialisation + main window + base vbox */
 887     dw = g_new0(day_win, 1);
 888     dw->scroll_pos = -1; /* not set */
 889
 890     dw->accel_group = gtk_accel_group_new();
 891
 892     while (tmdate.tm_wday != 1)
 893         orage_move_day(&tmdate, -1);
 894
 895     dw->startdate = tmdate;
 896     dw->startdate.tm_hour = 0;
 897     dw->startdate.tm_min = 0;
 898     dw->startdate.tm_sec = 0;
 899     dw->Vbox = gtk_vbox_new(FALSE, 0);
 900
 901     dw->item = item;
 902     build_day_view_colours(dw);
 903     build_day_view_header(dw, start_date);
 904     build_day_view_table(dw);
 905     gtk_widget_show_all(dw->Vbox);
 906     dw->selsig = vcal_view_set_calendar_page(dw->Vbox,
 907                     G_CALLBACK(dw_summary_selected), dw);
 908     vcal_view_create_popup_menus(dw->Vbox, &dw->view_menu,
 909                                  &dw->event_menu, &dw->event_group,
 910                                  &dw->ui_manager);
 911
 912     g_timeout_add(100, (GtkFunction)scroll_position_timer, (gpointer)dw);
 913
 914     return(dw);
 915 }