HaruFont::measureText

(PECL haru >= 0.0.1)

HaruFont::measureText — Calculate the number of characters which can be included within the specified width

说明

int HaruFont::measureText ( string $text , float $width , float $font_size , float $char_space , float $word_space [, bool $word_wrap = FALSE ] )

Calculate the number of characters which can be included within the specified width.

参数

text: The text to fit the width.
width: The width of the area to put the text to.
font_size: The size of the font.
char_space: The character spacing.
word_space: The word spacing.
word_wrap: When this parameter is set to TRUE the function "emulates" word wrapping and doesn't include the part of the current word if reached the end of the area.

返回值

Returns the number of characters which can be included within the specified width.

错误／异常

发生错误时抛出 HaruException 异常。