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Update nsfont_split documentation. Implementation was already compatible. Can only split on spaces.

This commit is contained in:
Michael Drake 2013-02-10 18:25:09 +00:00
parent 4843658742
commit db8ec60fc0
1 changed files with 12 additions and 5 deletions
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17
riscos/font.c
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@ -319,15 +319,22 @@ bool nsfont_position_in_string(const plot_font_style_t *fstyle,
*
* \param fstyle style for this text
* \param string UTF-8 string to measure
* \param length length of string
* \param length length of string, in bytes
* \param x width available
* \param char_offset updated to offset in string of actual_x, [0..length]
* \param char_offset updated to offset in string of actual_x, [1..length]
* \param actual_x updated to x coordinate of character closest to x
* \return true on success, false on error and error reported
*
* On exit, [char_offset == 0 ||
* string[char_offset] == ' ' ||
* char_offset == length]
* On exit, char_offset indicates first character after split point.
*
* Note: char_offset of 0 should never be returned.
*
* Returns:
* char_offset giving split point closest to x, where actual_x <= x
* else
* char_offset giving split point closest to x, where actual_x > x
*
* Returning char_offset == length means no split possible
*/
bool nsfont_split(const plot_font_style_t *fstyle,