manpagez: man pages & more
html files: pygtk
Home | html | info | man
pango.FontMetrics — an object containing overall metric information for a font.

Synopsis

class pango.FontMetrics(gobject.GBoxed):
    def get_ascent()
def get_descent()
def get_approximate_char_width()
def get_approximate_digit_width()

Description

A pango.FontMetrics object holds the overall metric information for a font. A pango.FontMetrics object is returned from the following methods:

Methods

pango.FontMetrics.get_ascent

    def get_ascent()

Returns :

the ascent in pango units. (1 point == pango.SCALE pango units.)

The get_ascent() method returns the font ascent in pango units where one font point is equal to pango.SCALE (1024) pango units. The ascent is the distance from the baseline to the logical top of a line of text. (The logical top may be above or below the top of the actual drawn ink. It is necessary to lay out the text to figure where the ink will be.)

pango.FontMetrics.get_descent

    def get_descent()

Returns :

the descent in pango units. (1 point == pango.SCALE pango units.)

The get_descent() method returns the font descent in pango units where one font point is equal to pango.SCALE (1024) pango units. The descent is the distance from the baseline to the logical bottom of a line of text. (The logical bottom may be above or below the bottom of the actual drawn ink. It is necessary to lay out the text to figure where the ink will be.)

pango.FontMetrics.get_approximate_char_width

    def get_approximate_char_width()

Returns :

the character width in pango units. (1 point == pango.SCALE pango units.)

The get_approximate_char_width() method returns the approximate character width for a font in pango units where one font point is equal to pango.SCALE (1024) pango units. This is merely a representative value that is useful, for example, for determining the initial size for a window. Actual characters in text will be wider and narrower than this.

pango.FontMetrics.get_approximate_digit_width

    def get_approximate_digit_width()

Returns :

the digit width in pango units. (1 point == pango.SCALE pango units.)

The get_approximate_digit_width() method returns the approximate digit width for a font in pango units where one font point is equal to pango.SCALE (1024) pango units. This is merely a representative value that is useful, for example, for determining the initial size for a window. Actual digits in text can be wider and narrower than this, though this value is generally somewhat more accurate than the result of the get_approximate_char_width() method.

© manpagez.com 2000-2017
Individual documents may contain additional copyright information.