wmcalendar/Src/calendar.c

   1 #include "calendar.h"
   2
   3 int  get_datetype(int day){return datetype[day][0];}
   4
   5 /*------------------------------------------------------
   6  *   checkicalversion
   7  -----------------------------------------------------*/
   8 void checkicalversion()
   9 {
  10     GtkWidget* dialog;
  11     GtkWidget* label;
  12     char* msg = "\n\nWARNING:\nIt is highly recommended to upgrade to libical 0.24!\nOtherwise wmCalendar will not work stable!\n";
  13     if(!strcmp(ICAL_VERSION, "0.23")){
  14         printf("%s",msg);
  15         dialog = gtk_dialog_new_with_buttons ("Warning",
  16                                               NULL,
  17                                               GTK_DIALOG_DESTROY_WITH_PARENT,
  18                                               GTK_STOCK_OK,
  19                                               GTK_RESPONSE_NONE,
  20                                               NULL);
  21         label = gtk_label_new (msg);
  22         g_signal_connect_swapped (GTK_OBJECT (dialog),
  23                                   "response",
  24                                   G_CALLBACK (gtk_widget_destroy),
  25                                   GTK_OBJECT (dialog));
  26         gtk_container_add (GTK_CONTAINER (GTK_DIALOG(dialog)->vbox), label);
  27         gtk_signal_connect (GTK_OBJECT (dialog), "destroy",
  28                         GTK_SIGNAL_FUNC(gtk_main_quit ),
  29                         NULL);
  30         gtk_widget_show_all (dialog);
  31         gtk_main();
  32     }
  33 }
  34
  35
  36 void move(GtkWidget *widget, GdkEventButton *event)
  37 {
  38     xr = event->x;
  39     yr = event->y;
  40 }
  41
  42
  43
  44 void move2(GtkWidget *widget, GdkEventMotion *event)
  45 {
  46     gtk_widget_set_uposition((GtkWidget*)gtk_widget_get_toplevel(widget),event->x_root - xr , event->y_root - yr);
  47 }
  48
  49
  50
  51 void widget_kill (GtkWidget * widget)
  52 {
  53     gtk_widget_destroy ((GtkWidget*)gtk_widget_get_toplevel(widget));
  54     gtk_main_quit ();
  55 }
  56
  57
  58
  59 /*------------------------------------------------------
  60  *   calendar
  61  -----------------------------------------------------*/
  62 void calendar(){
  63     int value;
  64     char* line;
  65     const char* text;
  66     const char* transp="";
  67     struct stat filestat;
  68     icalproperty *prop, *reocc;
  69     icalparser *parser;
  70     icalcomponent *c, *d;
  71     FILE *stream;
  72     struct icaltimetype t1, t2;
  73     if(get_debug())printf("check for new calendar data\n");
  74     stream = fopen((const char*)get_icsfile(),"r");
  75     if(stream == 0)
  76         return;
  77     fstat(fileno(stream), &filestat);
  78     if(filestat.st_mtime == modtime){
  79         fclose(stream);
  80         return;
  81     }
  82     if(get_debug())printf("read calendar data\n");
  83     deleteCalObjs();
  84     modtime = filestat.st_mtime;
  85     parser = icalparser_new();
  86     /* Tell the parser what input routie it should use. */
  87     icalparser_set_gen_data(parser, stream);
  88     do{
  89         line = icalparser_get_line(parser, read_stream);
  90         c = icalparser_add_line(parser, line);
  91         free(line);
  92         if(c != 0){
  93             for(d = icalcomponent_get_first_component(c, ICAL_ANY_COMPONENT);d != 0;
  94                 d = icalcomponent_get_next_component(c, ICAL_ANY_COMPONENT)){
  95
  96                 /* get date */
  97                 t1 = icalcomponent_get_dtstart(d);
  98                 t2 = icalcomponent_get_dtend(d);
  99                 if(icaltime_is_null_time(t2)){
 100                     t2 = t1;
 101                     icaltime_adjust(&t2, 1,0,0,0);
 102                 }
 103
 104                 /* get transparency */
 105                 prop = icalcomponent_get_first_property(d, ICAL_TRANSP_PROPERTY );
 106                 reocc = icalcomponent_get_first_property(d, ICAL_RRULE_PROPERTY);
 107                 if(prop)
 108                     transp = icalproperty_get_value_as_string(prop);
 109                 if(!strcmp(transp, "OPAQUE"))
 110                     value = 1;
 111                 else if(!strcmp(transp, "TRANSPARENT"))
 112                     value = 2;
 113                 else
 114                     value = 1 ;
 115
 116
 117                 /* get desciption */
 118                 prop = icalcomponent_get_first_property(d,     ICAL_SUMMARY_PROPERTY);
 119                 if(prop) {
 120                     text = icalproperty_get_value_as_string(prop);
 121                     addCalObj(t1, t2, value, text, d);
 122                     if(get_debug())printf("read: %d.%d.%d - %d.%d.%d %s\n", t1.day, t1.month,
 123                                     t1.year, t2.day, t2.month, t2.year, text);
 124                }
 125                 icalcomponent_free(d);
 126             }
 127             icalcomponent_free(c);
 128         }
 129     } while(line != 0);
 130     icalparser_free(parser);
 131     fclose(stream);
 132 }
 133
 134
 135
 136 /*------------------------------------------------------
 137  *   showDay
 138  -----------------------------------------------------*/
 139 void showDay(struct icaltimetype dt){
 140     static GtkWidget *dayView;
 141     static GtkWidget *table;
 142     static GtkWidget *label1;
 143     static GtkWidget *event_box;
 144     static GtkWidget *event_box2;
 145     char buf[28];
 146     char buf2[28];
 147     struct tm *timptr = NULL;
 148     time_t tt = icaltime_as_timet(dt);
 149     timptr = gmtime(&tt);
 150     event_box = gtk_event_box_new ();
 151     gtk_widget_show (event_box);
 152     event_box2 = gtk_event_box_new ();
 153     gtk_widget_show (event_box2);
 154
 155     /* create titlebartext */
 156     strftime(buf, 26, "%A, %x", timptr);
 157     sprintf(buf2, "<b>%s</b>",buf);
 158     /* Create a new window with no boarder and day as titlebar*/
 159     dayView = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 160     // xr =yr =0;
 161     gtk_window_set_position(GTK_WINDOW (dayView),GTK_WIN_POS_MOUSE);
 162     gtk_window_set_policy(GTK_WINDOW (dayView), FALSE, FALSE, FALSE);
 163     gtk_window_set_decorated (GTK_WINDOW (dayView), FALSE);
 164     gtk_window_set_title(GTK_WINDOW (dayView), buf);
 165     /* create a table */
 166     table = gtk_table_new(1, 4, FALSE);
 167     gtk_table_set_row_spacings ((GtkTable*)table, 4);
 168     gtk_table_set_col_spacings ((GtkTable*)table, 15);
 169     gtk_table_set_col_spacing ((GtkTable*)table,2, 0);
 170
 171     gtk_table_attach_defaults (GTK_TABLE(table), event_box, 0, 3, 1, 2);
 172     gtk_table_attach_defaults (GTK_TABLE(table), event_box2, 3, 4, 1, 2);
 173
 174     label1 = gtk_label_new (NULL);
 175     gtk_label_set_markup ((GtkLabel*)label1, buf2);
 176     gtk_container_add (GTK_CONTAINER (event_box), label1);
 177
 178     gtk_table_set_row_spacing ((GtkTable*)table,0, 1);
 179     gtk_table_set_row_spacing ((GtkTable*)table,1, 1);
 180     gtk_widget_show (label1);
 181     label1 = gtk_label_new (" X ");
 182     gtk_container_add (GTK_CONTAINER (event_box2), label1);
 183     gtk_widget_show (label1);
 184
 185     /* fill table with events and draw window if there are any events */
 186     if(dayevents(dt, table)){
 187         gtk_widget_show (dayView);
 188
 189         gtk_widget_show (table);
 190         gtk_container_add (GTK_CONTAINER (dayView), table);
 191         gtk_signal_connect(GTK_OBJECT (event_box), "motion_notify_event",
 192                            GTK_SIGNAL_FUNC (move2), NULL);
 193         gtk_signal_connect(GTK_OBJECT (event_box), "button_press_event",
 194                            GTK_SIGNAL_FUNC (move), NULL);
 195         gtk_signal_connect(GTK_OBJECT (event_box2), "button_press_event",
 196                            (GtkSignalFunc) widget_kill, GTK_OBJECT(dayView));
 197
 198         gtk_widget_realize(dayView);
 199         //      gtk_window_set_position(GTK_WINDOW (dayView),GTK_WIN_POS_CENTER_ON_PARENT);
 200         gtk_main ();
 201     }
 202 }
 203
 204
 205
 206 /*------------------------------------------------------
 207  *   dayevents
 208  -----------------------------------------------------*/
 209 int dayevents(struct icaltimetype dt, GtkWidget *table){
 210     static GtkWidget   *label1;
 211     struct calobj* it;
 212     struct icaltimetype t1, t2;
 213     icalproperty *prop;
 214     int j; /* tablerow */
 215     char buftime1[30];
 216     char buftime2[30];
 217     char buf[1024];
 218     struct tm *timptr = NULL;
 219     time_t tt;
 220
 221     GtkWidget *separator;
 222     j = 2;
 223     it = calRoot;
 224     while(it){
 225         if(eventOnDay(dt, it)){
 226             t1 = it->start;
 227             t2 = it->end;
 228             separator = gtk_hseparator_new ();
 229             gtk_widget_show (separator);
 230             gtk_table_attach_defaults (GTK_TABLE(table),separator,  0, 4, j, j+1);
 231             j++;
 232             if(daysEqual(t1, t2)){ /* single event */
 233                 /* create time entry */
 234                 tt = icaltime_as_timet(t1);
 235                 timptr = gmtime(&tt);
 236                 strftime(buftime1, 26, "%X", timptr);
 237                 tt = icaltime_as_timet(t2);
 238                 timptr = gmtime(&tt);
 239                 strftime(buftime2, 26, "%X", timptr);
 240                 sprintf(buf,"%s - %s",buftime1, buftime2);
 241                 label1 = gtk_label_new (NULL);
 242                 gtk_label_set_markup ((GtkLabel*)label1, buf);
 243                 gtk_table_attach_defaults (GTK_TABLE(table), label1, 1, 2, j, j+1);
 244                 gtk_widget_show (label1);
 245
 246
 247                 /* create description entry */
 248                 label1 = gtk_label_new (it->text);
 249                 gtk_table_attach_defaults (GTK_TABLE(table), label1, 2, 3, j, j+1);
 250                 gtk_widget_show (label1);
 251                 j++;
 252             }
 253             else {
 254                 /* multiday event or allday event*/
 255                 t2.day--; /* endtime always on the first day after the event ... */
 256                 if(t2.day == 0){
 257                     t2.month--;
 258                     if(t2.month == 0){
 259                         t2.month = 12;
 260                         t2.year--;
 261                     }
 262                     t2.day = icaltime_days_in_month(t2.month, t2.year);
 263                 }
 264                 if(t2.day < dt.day && t2.month == dt.month && t2.year == dt.year)
 265                     continue; /* event ended the day before ... */
 266                 if(daysEqual(t1,t2)){
 267                     /* allday event */
 268                     /* create description entry */
 269                     sprintf(buf, "<i>all day event</i>");
 270                 }
 271                 else{ /* multiday event */
 272                     /* create description with start and enddate */
 273                     tt = icaltime_as_timet(t1);
 274                     timptr = gmtime(&tt);
 275                     strftime(buftime1, 26, "%a, %x", timptr);
 276                     tt = icaltime_as_timet(t2);
 277                     timptr = gmtime(&tt);
 278                     strftime(buftime2, 26, "%a, %x", timptr);
 279                     sprintf(buf, "%s - %s", buftime1, buftime2);
 280                 }
 281                 label1 = gtk_label_new (NULL);
 282                 gtk_label_set_markup ((GtkLabel*)label1, buf);
 283
 284                 gtk_table_attach_defaults (GTK_TABLE(table), label1, 1, 2, j, j+1);
 285                 gtk_widget_show (label1);
 286
 287                 prop = icalcomponent_get_first_property(it->comp, ICAL_LOCATION_PROPERTY);
 288                 if(prop)
 289                     sprintf(buf, "%s\n%s", it->text, icalproperty_get_location(prop));
 290                 else
 291                     sprintf(buf, "%s", it->text);
 292                 label1 = gtk_label_new (buf);
 293                 gtk_label_set_justify(GTK_LABEL(label1),GTK_JUSTIFY_CENTER );
 294                 gtk_table_attach_defaults (GTK_TABLE(table), label1, 2, 3, j, j+1);
 295                 gtk_widget_show (label1);
 296                 j++;
 297             }
 298         }
 299         it = it->next;
 300     }
 301     label1 = gtk_label_new (NULL);
 302     gtk_table_attach_defaults (GTK_TABLE(table), label1, 2, 3, j+1, j+2);
 303     gtk_table_set_row_spacing (GTK_TABLE(table),j, 0);
 304     if(j==2) /* no entries for this day */
 305         return FALSE;
 306     return TRUE;
 307 }
 308
 309
 310
 311 /*------------------------------------------------------
 312  *   deleteCalObjs
 313  -----------------------------------------------------*/
 314 void deleteCalObjs(){
 315     int i;
 316     struct calobj* help;
 317     while(calRoot){
 318         help = (struct calobj*) calRoot->next;
 319         free(calRoot->text);
 320         free(calRoot->comp);
 321         free(calRoot);
 322         calRoot = help;
 323     }
 324     for(i = 0; i < 32; i++)
 325         datetype[i][1] = 0;
 326 }
 327
 328
 329
 330 /*------------------------------------------------------
 331  *  addCalObj
 332  -----------------------------------------------------*/
 333 void addCalObj(struct icaltimetype start, struct icaltimetype end,
 334                int type, const char *text, icalcomponent * d){
 335     struct calobj *newobj;
 336     icalcomponent *newcomp = malloc(sizeof(struct calobj));
 337     char* buf = malloc (strlen(text) + 1);
 338     newcomp =  icalcomponent_new_clone(d);
 339     strcpy(buf,text);
 340     newobj = malloc(sizeof(struct calobj));
 341     newobj->comp = newcomp;
 342     newobj->start = start;
 343     newobj->end = end;
 344     newobj->type = type;
 345     newobj->text = buf;
 346     newobj->next = calRoot;
 347     calRoot = newobj;
 348 }
 349
 350
 351
 352 /*------------------------------------------------------
 353  *   getDayType
 354  -----------------------------------------------------*/
 355 int  getDayType(struct icaltimetype dt){
 356     int jd;
 357     jd = civil_jdn(dt);
 358     if(datetype[jd % 31][1] == jd)
 359         return datetype[jd % 31][0];
 360
 361     return calcDayType(dt);
 362 }
 363
 364
 365
 366 /*------------------------------------------------------
 367  *   isExluded
 368  -----------------------------------------------------*/
 369 int isExluded(icalcomponent *comp, struct icaltimetype dt){
 370     icalproperty *prop;
 371     prop = icalcomponent_get_first_property(comp, ICAL_EXDATE_PROPERTY);
 372     while(prop){
 373         if(daysEqual(icalproperty_get_exdate(prop), dt))
 374             return 1;
 375         prop = icalcomponent_get_next_property(comp, ICAL_EXDATE_PROPERTY);
 376     }
 377     return 0;
 378 }
 379
 380
 381
 382 /*------------------------------------------------------
 383  *   eventOnDay
 384  -----------------------------------------------------*/
 385 int eventOnDay(struct icaltimetype dt, struct calobj* it)
 386 {
 387     icalrecur_iterator* ritr;
 388     icalproperty *rrule;
 389     struct icaltimetype next;
 390     if((daysEarlierEqual(dt, it->start) && daysLater(dt, it->end))
 391        || (daysEqual(dt, it->start) && daysEqual(dt, it->end)))
 392         return 1;
 393     rrule = icalcomponent_get_first_property((icalcomponent*)it->comp, ICAL_RRULE_PROPERTY);
 394
 395     if(rrule){
 396         if(daysEarlierEqual(dt, it->start)){
 397             ritr = icalrecur_iterator_new( icalproperty_get_rrule(rrule), it->start);
 398             if(ritr)
 399                 next = icalrecur_iterator_next(ritr);
 400             while(daysEarlierEqual(dt, next) && !icaltime_is_null_time(next)){
 401                 if(daysEqual(dt, next) && !isExluded((icalcomponent*)it->comp, dt))
 402                     {
 403                         free(ritr);
 404                         return 1;
 405                     }
 406                 next = icalrecur_iterator_next(ritr);
 407             }
 408             free(ritr);
 409         }
 410     }
 411     return 0;
 412 }
 413
 414
 415
 416 /*------------------------------------------------------
 417  *   calcDayType
 418  -----------------------------------------------------*/
 419 int calcDayType(struct icaltimetype dt){
 420     int jd;
 421     struct calobj* it;
 422     jd = civil_jdn(dt);
 423     datetype[jd % 31][1] = jd;
 424     datetype[jd % 31][0] = 0;
 425     it = calRoot;
 426     while(it){
 427         if(eventOnDay(dt, it))
 428             if(datetype[jd % 31][0] != 1)
 429                 datetype[jd % 31][0] = it->type;
 430         it = it->next;
 431     }
 432     return datetype[jd % 31][0];
 433 }