]> code.citadel.org Git - citadel.git/blobdiff - webcit/calendar_view.c
* look and feel overhaul -- almost done!
[citadel.git] / webcit / calendar_view.c
index 148786a0a2827665569ded3acb530eea14db5109..94ba0833d81279a776b2d8ec1f551f523fc0b1ca 100644 (file)
 #include "webcit.h"
 #include "webserver.h"
 
-#ifndef HAVE_ICAL_H
+#ifndef WEBCIT_WITH_CALENDAR_SERVICE
 
 void do_calendar_view(void) {  /* stub for non-libical builds */
        wprintf("<CENTER><I>Calendar view not available</I></CENTER><BR>\n");
 }
 
-#else  /* HAVE_ICAL_H */
+#else  /* WEBCIT_WITH_CALENDAR_SERVICE */
 
 /****************************************************************************/
 
+
+void calendar_month_view_display_events(time_t thetime) {
+       int i;
+       time_t event_tt;
+       struct tm event_tm;
+       struct tm today_tm;
+       icalproperty *p;
+       struct icaltimetype t;
+       int month, day, year;
+       int all_day_event = 0;
+
+       if (WC->num_cal == 0) {
+               wprintf("<BR><BR><BR>\n");
+               return;
+       }
+
+       memcpy(&today_tm, localtime(&thetime), sizeof(struct tm));
+       month = today_tm.tm_mon + 1;
+       day = today_tm.tm_mday;
+       year = today_tm.tm_year + 1900;
+
+       for (i=0; i<(WC->num_cal); ++i) {
+               p = icalcomponent_get_first_property(WC->disp_cal[i],
+                                               ICAL_DTSTART_PROPERTY);
+               if (p != NULL) {
+                       t = icalproperty_get_dtstart(p);
+                       event_tt = icaltime_as_timet(t);
+                       memcpy(&event_tm, localtime(&event_tt), sizeof(struct tm));
+                       if ((event_tm.tm_year == today_tm.tm_year)
+                          && (event_tm.tm_mon == today_tm.tm_mon)
+                          && (event_tm.tm_mday == today_tm.tm_mday)) {
+
+                               if (t.is_date) all_day_event = 1;
+                               else all_day_event = 0;
+
+                               p = icalcomponent_get_first_property(
+                                                       WC->disp_cal[i],
+                                                       ICAL_SUMMARY_PROPERTY);
+                               if (p != NULL) {
+
+                                       if (all_day_event) {
+                                               wprintf("<TABLE border=0 cellpadding=2><TR>"
+                                                       "<TD BGCOLOR=\"#CCCCDD\">"
+                                               );
+                                       }
+
+                                       wprintf("<FONT SIZE=-1>"
+                                               "<A HREF=\"/display_edit_event?msgnum=%ld&calview=%s&year=%s&month=%s&day=%s\">",
+                                               WC->cal_msgnum[i],
+                                               bstr("calview"),
+                                               bstr("year"),
+                                               bstr("month"),
+                                               bstr("day")
+                                       );
+                                       escputs((char *)
+                                               icalproperty_get_comment(p));
+                                       wprintf("</A></FONT><BR>\n");
+
+                                       if (all_day_event) {
+                                               wprintf("</TD></TR></TABLE>");
+                                       }
+
+                               }
+
+                       }
+
+
+               }
+       }
+}
+
+
+
+void calendar_month_view(int year, int month, int day) {
+       struct tm starting_tm;
+       struct tm tm;
+       time_t thetime;
+       int i;
+       time_t previous_month;
+       time_t next_month;
+
+       /* Determine what day to start.
+        * First, back up to the 1st of the month...
+        */
+       memset(&starting_tm, 0, sizeof(struct tm));
+       starting_tm.tm_year = year - 1900;
+       starting_tm.tm_mon = month - 1;
+       starting_tm.tm_mday = day;
+       thetime = mktime(&starting_tm);
+
+       memcpy(&tm, &starting_tm, sizeof(struct tm));
+       while (tm.tm_mday != 1) {
+               thetime = thetime - (time_t)86400;      /* go back 24 hours */
+               memcpy(&tm, localtime(&thetime), sizeof(struct tm));
+       }
+
+       /* Determine previous and next months ... for links */
+       previous_month = thetime - (time_t)864000L;     /* back 10 days */
+       next_month = thetime + (time_t)(31L * 86400L);  /* ahead 31 days */
+
+       /* Now back up until we're on a Sunday */
+       memcpy(&tm, localtime(&thetime), sizeof(struct tm));
+       while (tm.tm_wday != 0) {
+               thetime = thetime - (time_t)86400;      /* go back 24 hours */
+               memcpy(&tm, localtime(&thetime), sizeof(struct tm));
+       }
+
+       /* Outer table (to get the background color) */
+       wprintf("<TABLE width=100%% border=0 cellpadding=0 cellspacing=0 "
+               "bgcolor=#204B78><TR><TD>\n");
+
+       wprintf("<TABLE width=100%% border=0 cellpadding=0 cellspacing=0>"
+               "<TR><TD align=left><font color=#FFFFFF>"
+               "&nbsp;<A HREF=\"/display_edit_event?msgnum=0"
+               "&year=%d&month=%d&day=%d\">"
+               "Add new calendar event</A>"
+               "</font></TD>\n",
+               year, month, day
+       );
+
+       wprintf("<TD><CENTER><H3>");
+
+       memcpy(&tm, localtime(&previous_month), sizeof(struct tm));
+       wprintf("<A HREF=\"readfwd?calview=month&year=%d&month=%d&day=1\">",
+               (int)(tm.tm_year)+1900, tm.tm_mon + 1);
+       wprintf("<IMG ALIGN=MIDDLE SRC=\"/static/back.gif\" BORDER=0></A>\n");
+
+       wprintf("&nbsp;&nbsp;"
+               "<FONT COLOR=\"#FFFFFF\">"
+               "%s %d"
+               "</FONT>"
+               "&nbsp;&nbsp;", months[month-1], year);
+
+       memcpy(&tm, localtime(&next_month), sizeof(struct tm));
+       wprintf("<A HREF=\"readfwd?calview=month&year=%d&month=%d&day=1\">",
+               (int)(tm.tm_year)+1900, tm.tm_mon + 1);
+       wprintf("<IMG ALIGN=MIDDLE SRC=\"/static/forward.gif\" BORDER=0></A>\n");
+
+       wprintf("</H3></TD><TD align=right><font color=#FFFFFF size=-2>"
+               "Click on any date for day view&nbsp;"
+               "</FONT></TD></TR></TABLE>\n");
+
+       /* Inner table (the real one) */
+       wprintf("<TABLE width=100%% border=0 cellpadding=1 cellspacing=1 "
+               "bgcolor=#204B78>");
+       for (i=0; i<7; ++i) {
+               wprintf("<TH><FONT COLOR=\"#FFFFFF\">%s</FONT></TH>", days[i]);
+       }
+
+       /* Now do 35 days */
+       for (i = 0; i < 35; ++i) {
+               memcpy(&tm, localtime(&thetime), sizeof(struct tm));
+
+               /* Before displaying Sunday, start a new row */
+               if ((i % 7) == 0) {
+                       wprintf("<TR>");
+               }
+
+               wprintf("<TD BGCOLOR=\"#%s\" WIDTH=14%% HEIGHT=60 VALIGN=TOP><B>",
+                       ((tm.tm_mon != month-1) ? "DDDDDD" :
+                       ((tm.tm_wday==0 || tm.tm_wday==6) ? "EEEECC" :
+                       "FFFFFF"))
+               );
+               if ((i==0) || (tm.tm_mday == 1)) {
+                       wprintf("%s ", months[tm.tm_mon]);
+               }
+               wprintf("<A HREF=\"readfwd?calview=day&year=%d&month=%d&day=%d\">"
+                       "%d</A></B><BR>",
+                       tm.tm_year + 1900,
+                       tm.tm_mon + 1,
+                       tm.tm_mday,
+                       tm.tm_mday);
+
+               /* put the data here, stupid */
+               calendar_month_view_display_events(thetime);
+
+               wprintf("</TD>");
+
+               /* After displaying Saturday, end the row */
+               if ((i % 7) == 6) {
+                       wprintf("</TR>\n");
+               }
+
+               thetime += (time_t)86400;               /* ahead 24 hours */
+       }
+
+       wprintf("</TABLE>"                      /* end of inner table */
+               "</TD></TR></TABLE>"            /* end of outer table */
+               "</CENTER>\n");
+}
+
+
+void calendar_week_view(int year, int month, int day) {
+       wprintf("<CENTER><I>week view FIXME</I></CENTER><BR>\n");
+}
+
+
 /*
- * We loaded calendar events into memory during a pass through the
- * messages in this room ... now display them.
+ * Display events for a particular hour of a particular day.
+ * (Specify hour < 0 to show "all day" events)
  */
-void do_calendar_view(void) {
-       wprintf("<CENTER><I>Calendar view not available</I></CENTER><BR>\n");
+void calendar_day_view_display_events(int year, int month,
+                                       int day, int hour) {
+       int i;
+       icalproperty *p;
+       struct icaltimetype t;
+       time_t event_tt;
+       struct tm *event_tm;
+       int all_day_event = 0;
+
+       if (WC->num_cal == 0) {
+               wprintf("<BR><BR><BR>\n");
+               return;
+       }
+
+       for (i=0; i<(WC->num_cal); ++i) {
+               p = icalcomponent_get_first_property(WC->disp_cal[i],
+                                               ICAL_DTSTART_PROPERTY);
+               if (p != NULL) {
+                       t = icalproperty_get_dtstart(p);
+                       event_tt = icaltime_as_timet(t);
+                       event_tm = localtime(&event_tt);
+                       if ((event_tm->tm_year == (year-1900))
+                          && (event_tm->tm_mon == (month-1))
+                          && (event_tm->tm_mday == day)
+                          && ( ((event_tm->tm_hour == hour)&&(!t.is_date)) || ((hour<0)&&(t.is_date)) )
+                          ) {
+
+                               if (t.is_date) all_day_event = 1;
+
+                               p = icalcomponent_get_first_property(
+                                                       WC->disp_cal[i],
+                                                       ICAL_SUMMARY_PROPERTY);
+                               if (p != NULL) {
+
+                                       if (all_day_event) {
+                                               wprintf("<TABLE border=1 cellpadding=2><TR>"
+                                                       "<TD BGCOLOR=\"#CCCCCC\">"
+                                               );
+                                       }
+
+                                       wprintf("<FONT SIZE=-1>"
+                                               "<A HREF=\"/display_edit_event?msgnum=%ld&calview=day&year=%d&month=%d&day=%d\">",
+                                               WC->cal_msgnum[i],
+                                               year, month, day
+                                       );
+                                       escputs((char *)
+                                               icalproperty_get_comment(p));
+                                       wprintf("</A></FONT><BR>\n");
+
+                                       if (all_day_event) {
+                                               wprintf("</TD></TR></TABLE>");
+                                       }
+                               }
+
+                       }
+
+
+               }
+       }
 }
 
 
-#endif /* HAVE_ICAL_H */
+
+void calendar_day_view(int year, int month, int day) {
+       int hour;
+       struct icaltimetype today, yesterday, tomorrow;
+
+
+       /* Figure out the dates for "yesterday" and "tomorrow" links */
+
+       memset(&today, 0, sizeof(struct icaltimetype));
+       today.year = year;
+       today.month = month;
+       today.day = day;
+       today.is_date = 1;
+
+       memcpy(&yesterday, &today, sizeof(struct icaltimetype));
+       --yesterday.day;
+       yesterday = icaltime_normalize(yesterday);
+
+       memcpy(&tomorrow, &today, sizeof(struct icaltimetype));
+       ++tomorrow.day;
+       tomorrow = icaltime_normalize(tomorrow);
+
+
+       /* Outer table (to get the background color) */
+       wprintf("<TABLE width=100%% border=0 cellpadding=0 cellspacing=0 "
+               "bgcolor=#204B78><TR><TD>\n");
+
+       /* Inner table (the real one) */
+       wprintf("<TABLE width=100%% border=0 cellpadding=1 cellspacing=1 "
+               "bgcolor=#204B78><TR>\n");
+
+       /* Innermost table (contains hours etc.) */
+       wprintf("<TD WIDTH=80%%>"
+               "<TABLE width=100%% border=0 cellpadding=1 cellspacing=1 "
+               "bgcolor=#204B78>\n");
+
+       /* Display events before 8:00 (hour=-1 is all-day events) */
+       wprintf("<TR>"
+               "<TD BGCOLOR=\"#CCCCDD\" VALIGN=MIDDLE WIDTH=10%%></TD>"
+               "<TD BGCOLOR=\"#FFFFFF\" VALIGN=TOP>");
+       for (hour = (-1); hour <= 7; ++hour) {
+               calendar_day_view_display_events(year, month, day, hour);
+       }
+       wprintf("</TD></TR>\n");
+
+       /* Now the middle of the day... */      
+       for (hour = 8; hour <= 17; ++hour) {    /* could do HEIGHT=xx */
+               wprintf("<TR HEIGHT=30><TD BGCOLOR=\"#CCCCDD\" ALIGN=MIDDLE "
+                       "VALIGN=MIDDLE WIDTH=10%%>");
+               wprintf("<A HREF=\"/display_edit_event?msgnum=0"
+                       "&year=%d&month=%d&day=%d&hour=%d&minute=0\">",
+                       year, month, day, hour
+               );
+               wprintf("%d:00%s</A> ",
+                       (hour <= 12 ? hour : hour-12),
+                       (hour < 12 ? "am" : "pm")
+               );
+               wprintf("</TD><TD BGCOLOR=\"#FFFFFF\" VALIGN=TOP>");
+
+               /* put the data here, stupid */
+               calendar_day_view_display_events(year, month, day, hour);
+
+               wprintf("</TD></TR>\n");
+       }
+
+       /* Display events after 5:00... */
+       wprintf("<TR>"
+               "<TD BGCOLOR=\"#CCCCDD\" VALIGN=MIDDLE WIDTH=10%%></TD>"
+               "<TD BGCOLOR=\"#FFFFFF\" VALIGN=TOP>");
+       for (hour = 18; hour <= 23; ++hour) {
+               calendar_day_view_display_events(year, month, day, hour);
+       }
+       wprintf("</TD></TR>\n");
+
+
+       wprintf("</TABLE>"                      /* end of innermost table */
+               "</TD>"
+       );
+
+       wprintf("<TD WIDTH=20%% VALIGN=top>");  /* begin stuff-on-the-right */
+
+
+       /* Begin todays-date-with-left-and-right-arrows */
+       wprintf("<CENTER><TABLE BORDER=0 CELLSPACING=0 CELLPADDING=1><TR>\n");
+
+       wprintf("<TD>"
+               "<A HREF=\"readfwd?calview=day&year=%d&month=%d&day=%d\">",
+               yesterday.year, yesterday.month, yesterday.day
+       );
+       wprintf("<IMG ALIGN=MIDDLE SRC=\"/static/back.gif\" BORDER=0></A>"
+               "</TD>\n");
+
+       wprintf("<TD ALIGN=MIDDLE><FONT COLOR=\"#FFFFFF\">"
+               "<H2>%s</H2><H1>%d</H1><H3>%d</H3>"
+               "</FONT></TD>",
+               months[month-1], day, year);
+
+       wprintf("<TD>"
+               "<A HREF=\"readfwd?calview=day&year=%d&month=%d&day=%d\">",
+               tomorrow.year, tomorrow.month, tomorrow.day
+       );
+       wprintf("<IMG ALIGN=MIDDLE SRC=\"/static/forward.gif\""
+               " BORDER=0></A></TD>\n");
+
+       wprintf("</TR></TABLE></CENTER>\n");
+       /* End todays-date-with-left-and-right-arrows */
+
+       wprintf("<CENTER><font color=#FFFFFF>"
+               "&nbsp;<A HREF=\"/display_edit_event?msgnum=0"
+               "&year=%d&month=%d&day=%d\">"
+               "Add new calendar event</A>"
+               "<BR><BR>\n",
+               year, month, day
+       );
+
+       wprintf("<A HREF=\"readfwd?calview=month&year=%d&month=%d&day=1\">"
+               "Back to month view</A>\n", year, month);
+
+       wprintf("</FONT></CENTER>\n");
+
+       wprintf("</TD>");                       /* end stuff-on-the-right */
+
+
+
+       wprintf("</TR></TABLE>"                 /* end of inner table */
+               "</TD></TR></TABLE>"            /* end of outer table */
+       );
+
+
+
+}
+
+/*
+ * Display today's events.
+ */
+void calendar_summary_view(void) {
+       int i;
+       icalproperty *p;
+       struct icaltimetype t;
+       time_t event_tt;
+       struct tm event_tm;
+       struct tm today_tm;
+       time_t now;
+       int all_day_event = 0;
+       char timestring[SIZ];
+
+       if (WC->num_cal == 0) {
+               return;
+       }
+
+       now = time(NULL);
+       memcpy(&today_tm, localtime(&now), sizeof(struct tm));
+
+       wprintf("<UL>");
+
+       for (i=0; i<(WC->num_cal); ++i) {
+               p = icalcomponent_get_first_property(WC->disp_cal[i],
+                                               ICAL_DTSTART_PROPERTY);
+               if (p != NULL) {
+                       t = icalproperty_get_dtstart(p);
+                       event_tt = icaltime_as_timet(t);
+                       fmt_time(timestring, event_tt);
+                       memcpy(&event_tm, localtime(&event_tt), sizeof(struct tm));
+                       if ( (event_tm.tm_year == today_tm.tm_year)
+                          && (event_tm.tm_mon == today_tm.tm_mon)
+                          && (event_tm.tm_mday == today_tm.tm_mday)
+                          ) {
+
+                               if (t.is_date) all_day_event = 1;
+
+                               p = icalcomponent_get_first_property(
+                                                       WC->disp_cal[i],
+                                                       ICAL_SUMMARY_PROPERTY);
+                               if (p != NULL) {
+                                       wprintf("<LI>");
+                                       escputs((char *)
+                                               icalproperty_get_comment(p));
+                                       wprintf(" (%s)\n", timestring);
+                               }
+                       }
+               }
+       }
+       wprintf("</UL>\n");
+       free_calendar_buffer();
+}
+
+
+
+void free_calendar_buffer(void) {
+       int i;
+       if (WC->num_cal) for (i=0; i<(WC->num_cal); ++i) {
+               icalcomponent_free(WC->disp_cal[i]);
+       }
+       WC->num_cal = 0;
+       free(WC->disp_cal);
+       WC->disp_cal = NULL;
+       free(WC->cal_msgnum);
+       WC->cal_msgnum = NULL;
+}
+
+
+
+
+void do_calendar_view(void) {
+       time_t now;
+       struct tm tm;
+       int year, month, day;
+       char calview[SIZ];
+
+       /* In case no date was specified, go with today */
+       now = time(NULL);
+       memcpy(&tm, localtime(&now), sizeof(struct tm));
+       year = tm.tm_year + 1900;
+       month = tm.tm_mon + 1;
+       day = tm.tm_mday;
+
+       /* Now see if a date was specified */
+       if (strlen(bstr("year")) > 0) year = atoi(bstr("year"));
+       if (strlen(bstr("month")) > 0) month = atoi(bstr("month"));
+       if (strlen(bstr("day")) > 0) day = atoi(bstr("day"));
+
+       /* How would you like that cooked? */
+       if (strlen(bstr("calview")) > 0) {
+               strcpy(calview, bstr("calview"));
+       }
+       else {
+               strcpy(calview, "month");
+       }
+
+       /* Display the selected view */
+       if (!strcasecmp(calview, "day")) {
+               calendar_day_view(year, month, day);
+       }
+       else if (!strcasecmp(calview, "week")) {
+               calendar_week_view(year, month, day);
+       }
+       else {
+               calendar_month_view(year, month, day);
+       }
+
+       /* Free the calendar stuff */
+       free_calendar_buffer();
+
+}
+
+#endif /* WEBCIT_WITH_CALENDAR_SERVICE */