From 2521bf5d2675ddd8c07637d021198134a7e12445 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Nils=20Wallm=C3=A9nius?= <nils@rockbox.org>
Date: Sun, 20 Apr 2008 11:02:42 +0000
Subject: Fix speaking of decimal values to work when decimals != 1, spell the
 fractional part instead of speaking it like a number, break out a part of
 output_dyn_value into a separate function and use it

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17185 a1c6a512-1295-4272-9138-f99709370657
---
 apps/misc.c | 13 +------------
 apps/talk.c | 33 +++++++++++++++++++++++++++------
 apps/talk.h |  5 ++++-
 3 files changed, 32 insertions(+), 19 deletions(-)

diff --git a/apps/misc.c b/apps/misc.c
index 1d83640..f6e5e6b 100644
--- a/apps/misc.c
+++ b/apps/misc.c
@@ -89,7 +89,6 @@ char *output_dyn_value(char *buf, int buf_size, int value,
     int scale = bin_scale ? 1024 : 1000;
     int fraction = 0;
     int unit_no = 0;
-    int i;
     char tbuf[5];
 
     while (value >= scale)
@@ -118,17 +117,7 @@ char *output_dyn_value(char *buf, int buf_size, int value,
     }
     else
     {
-        /* strip trailing zeros from the fraction */
-        for (i = strlen(tbuf) - 1; (i >= 0) && (tbuf[i] == '0'); i--)
-            tbuf[i] = '\0';
-
-        talk_number(value, true);
-        if (tbuf[0] != 0)
-        {
-            talk_id(LANG_POINT, true);
-            talk_spell(tbuf, true);
-        }
-        talk_id(P2ID(units[unit_no]), true);
+        talk_fractional(tbuf, value, P2ID(units[unit_no]));
     }
     return buf;
 }
diff --git a/apps/talk.c b/apps/talk.c
index db70a51..e9d54fd 100644
--- a/apps/talk.c
+++ b/apps/talk.c
@@ -763,6 +763,22 @@ static int talk_time_unit(long secs, bool exact, bool enqueue)
     return 0;
 }
 
+void talk_fractional(char *tbuf, int value, int unit)
+{
+    int i;
+    /* strip trailing zeros from the fraction */
+    for (i = strlen(tbuf) - 1; (i >= 0) && (tbuf[i] == '0'); i--)
+        tbuf[i] = '\0';
+
+    talk_number(value, true);
+    if (tbuf[0] != 0)
+    {
+        talk_id(LANG_POINT, true);
+        talk_spell(tbuf, true);
+    }
+    talk_id(unit, true);
+}
+
 int talk_value(long n, int unit, bool enqueue)
 {
     return talk_value_decimal(n, unit, 0, enqueue);
@@ -805,6 +821,12 @@ int talk_value_decimal(long n, int unit, int decimals, bool enqueue)
             = VOICE_PM_UNITS_PER_TICK,
     };
 
+    static const int pow10[] = { /* 10^0 - 10^7 */
+        1, 10, 100, 1000, 10000, 100000, 1000000, 10000000
+    };
+
+    char tbuf[8];
+
     if (talk_temp_disable_count > 0)
         return -1;  /* talking has been disabled */
 #if CONFIG_CODEC != SWCODEC
@@ -841,18 +863,17 @@ int talk_value_decimal(long n, int unit, int decimals, bool enqueue)
         {
             talk_id(VOICE_MINUS, enqueue);
             n = -n;
-            enqueue = true;
         }
 
-        talk_number(n / (10*decimals), enqueue);
-        talk_id(LANG_POINT, true);
-        n %= (10*decimals);
-        enqueue = true;
+        snprintf(tbuf, sizeof(tbuf), "%0*d", decimals, n % pow10[decimals]);
+        talk_fractional(tbuf, n / pow10[decimals], unit_id);
+
+        return 0;
     }
 
     talk_number(n, enqueue); /* say the number */
     talk_id(unit_id, true); /* say the unit, if any */
-        
+
     return 0;
 }
 
diff --git a/apps/talk.h b/apps/talk.h
index afd280e..d949794 100644
--- a/apps/talk.h
+++ b/apps/talk.h
@@ -62,7 +62,7 @@ enum {
 #define TALK_ID(n,u) (((long)(u))<<UNIT_SHIFT | ((n) & ~(-1L<<UNIT_SHIFT)))
 
 /* make a "talkable" ID from a decimal number + unit, the decimal number
-   is represented like x*10*d where d is the number of decimal digits */
+   is represented like x*10^d where d is the number of decimal digits */
 #define TALK_ID_DECIMAL(n,d,u) (((long)(u))<<UNIT_SHIFT |\
                              ((long)(d))<<DECIMAL_SHIFT |\
                              ((n) & ~(-1L<<DECIMAL_SHIFT)))
@@ -92,6 +92,9 @@ void talk_disable(bool disable); /* temporarily disable (or re-enable) talking (
 void talk_force_shutup(void); /* kill voice unconditionally */
 void talk_shutup(void); /* Interrupt voice, as when enqueue is false */
 
+/* helper function for speaking fractional numbers */
+void talk_fractional(char *tbuf, int value, int unit);
+
 #if CONFIG_RTC
 void talk_time(struct tm *tm, bool enqueue);
 void talk_date(struct tm *tm, bool enqueue);
-- 
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