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(svn r25314) -Fix (r25313): If '0' is the broadest digit, 0 * sum(10^i, i=0..(n-1)) is not the broadest n-digit number.

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-Fix [FS#5562]: Proper size-estimation for numbers with n digits.
This commit is contained in:
frosch
2013-06-01 15:10:32 +00:00
parent ddf817e8f3
commit 81e810a4f5
3 changed files with 14 additions and 13 deletions
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18
src/gfx.cpp
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@@ -1690,22 +1690,22 @@ byte GetDigitWidth(FontSize size)
}
/**
* Return the digit with the biggest width.
* Determine the broadest digits for guessing the maximum width of a n-digit number.
* @param [out] front Broadest digit, which is not 0. (Use this digit as first digit for numbers with more than one digit.)
* @param [out] next Broadest digit, including 0. (Use this digit for all digits, except the first one; or for numbers with only one digit.)
* @param size Font of the digit
* @return Broadest digit.
*/
uint GetBroadestDigit(FontSize size)
void GetBroadestDigit(uint *front, uint *next, FontSize size)
{
uint digit = 0;
byte width = 0;
for (char c = '0'; c <= '9'; c++) {
byte w = GetCharacterWidth(size, c);
int width = -1;
for (char c = '9'; c >= '0'; c--) {
int w = GetCharacterWidth(size, c);
if (w > width) {
width = w;
digit = c - '0';
*next = c - '0';
if (c != '0') *front = c - '0';
}
}
return digit;
}
void ScreenSizeChanged()