1 files changed, 199 insertions, 0 deletions
diff --git a/libs/ui/Time.cpp b/libs/ui/Time.cpp
new file mode 100644
index 0000000..b553913
--- /dev/null
+++ b/libs/ui/Time.cpp
@@ -0,0 +1,199 @@
+#include <utils/TimeUtils.h>
+#include <stdio.h>
+#include <cutils/tztime.h>
+
+namespace android {
+
+static void
+dump(const Time& t)
+{
+    #ifdef HAVE_TM_GMTOFF
+        long tm_gmtoff = t.t.tm_gmtoff;
+    #else
+        long tm_gmtoff = 0;
+    #endif
+    printf("%04d-%02d-%02d %02d:%02d:%02d (%d,%ld,%d,%d)\n",
+            t.t.tm_year+1900, t.t.tm_mon+1, t.t.tm_mday,
+            t.t.tm_hour, t.t.tm_min, t.t.tm_sec,
+            t.t.tm_isdst, tm_gmtoff, t.t.tm_wday, t.t.tm_yday);
+}
+
+Time::Time()
+{
+    t.tm_sec = 0;
+    t.tm_min = 0;
+    t.tm_hour = 0;
+    t.tm_mday = 0;
+    t.tm_mon = 0;
+    t.tm_year = 0;
+    t.tm_wday = 0;
+    t.tm_yday = 0;
+    t.tm_isdst = -1; // we don't know, so let the C library determine
+    #ifdef HAVE_TM_GMTOFF
+        t.tm_gmtoff = 0;
+    #endif
+}
+
+
+#define COMPARE_FIELD(field) do { \
+        int diff = a.t.field - b.t.field; \
+        if (diff != 0) return diff; \
+    } while(0)
+
+int
+Time::compare(Time& a, Time& b)
+{
+    if (0 == strcmp(a.timezone, b.timezone)) {
+        // if the timezones are the same, we can easily compare the two
+        // times.  Otherwise, convert to milliseconds and compare that.
+        // This requires that object be normalized.
+        COMPARE_FIELD(tm_year);
+        COMPARE_FIELD(tm_mon);
+        COMPARE_FIELD(tm_mday);
+        COMPARE_FIELD(tm_hour);
+        COMPARE_FIELD(tm_min);
+        COMPARE_FIELD(tm_sec);
+        return 0;
+    } else {
+        int64_t am = a.toMillis(false /* use isDst */);
+        int64_t bm = b.toMillis(false /* use isDst */);
+        int64_t diff = am-bm;
+        return (diff < 0) ? -1 : ((diff > 0) ? 1 : 0);
+    }
+}
+
+static const int DAYS_PER_MONTH[] = {
+                        31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
+                    };
+
+static inline int days_this_month(int year, int month)
+{
+    int n = DAYS_PER_MONTH[month];
+    if (n != 28) {
+        return n;
+    } else {
+        int y = year;
+        return ((y%4)==0&&((y%100)!=0||(y%400)==0)) ? 29 : 28;
+    }
+}
+
+void 
+Time::switchTimezone(const char* timezone)
+{
+    time_t seconds = mktime_tz(&(this->t), this->timezone);
+    localtime_tz(&seconds, &(this->t), timezone);
+}
+
+String8 
+Time::format(const char *format, const struct strftime_locale *locale) const
+{
+    char buf[257];
+    int n = strftime_tz(buf, 257, format, &(this->t), locale);
+    if (n > 0) {
+        return String8(buf);
+    } else {
+        return String8();
+    }
+}
+
+static inline short
+tochar(int n)
+{
+    return (n >= 0 && n <= 9) ? ('0'+n) : ' ';
+}
+
+static inline short
+next_char(int *m, int k)
+{
+    int n = *m / k;
+    *m = *m % k;
+    return tochar(n);
+}
+
+void
+Time::format2445(short* buf, bool hasTime) const
+{
+    int n;
+
+    n = t.tm_year+1900;
+    buf[0] = next_char(&n, 1000);
+    buf[1] = next_char(&n, 100);
+    buf[2] = next_char(&n, 10);
+    buf[3] = tochar(n);
+
+    n = t.tm_mon+1;
+    buf[4] = next_char(&n, 10);
+    buf[5] = tochar(n);
+
+    n = t.tm_mday;
+    buf[6] = next_char(&n, 10);
+    buf[7] = tochar(n);
+
+    if (hasTime) {
+      buf[8] = 'T';
+
+      n = t.tm_hour;
+      buf[9] = next_char(&n, 10);
+      buf[10] = tochar(n);
+      
+      n = t.tm_min;
+      buf[11] = next_char(&n, 10);
+      buf[12] = tochar(n);
+      
+      n = t.tm_sec;
+      buf[13] = next_char(&n, 10);
+      buf[14] = tochar(n);
+      bool inUtc = strcmp("UTC", timezone) == 0;
+      if (inUtc) {
+          buf[15] = 'Z';
+      }
+    }
+}
+
+String8 
+Time::toString() const
+{
+    String8 str;
+    char* s = str.lockBuffer(150);
+    #ifdef HAVE_TM_GMTOFF
+        long tm_gmtoff = t.tm_gmtoff;
+    #else
+        long tm_gmtoff = 0;
+    #endif
+    sprintf(s, "%04d%02d%02dT%02d%02d%02d%s(%d,%d,%ld,%d,%d)", 
+            t.tm_year+1900, t.tm_mon+1, t.tm_mday, t.tm_hour, t.tm_min,
+            t.tm_sec, timezone, t.tm_wday, t.tm_yday, tm_gmtoff, t.tm_isdst,
+            (int)(((Time*)this)->toMillis(false /* use isDst */)/1000));
+    str.unlockBuffer();
+    return str;
+}
+
+void 
+Time::setToNow()
+{
+    time_t seconds;
+    time(&seconds);
+    localtime_tz(&seconds, &(this->t), this->timezone);
+}
+
+int64_t 
+Time::toMillis(bool ignoreDst)
+{
+    if (ignoreDst) {
+        this->t.tm_isdst = -1;
+    }
+    int64_t r = mktime_tz(&(this->t), this->timezone);
+    if (r == -1)
+        return -1;
+    return r * 1000;
+}
+
+void 
+Time::set(int64_t millis)
+{
+    time_t seconds = millis / 1000;
+    localtime_tz(&seconds, &(this->t), this->timezone);
+}
+
+}; // namespace android
+