CairoContext::fontExtents

(PECL cairo >= 0.1.0)

Get the font extents

public array CairoContext::fontExtents ( void )

Object oriented style (method):

Procedural style:

array cairo_font_extents ( CairoContext $context )

Gets the font extents for the currently selected font.

Parameters:

context

Description...

Returns:

An array containing the font extents for the current font.

Examples:

Object oriented style

<?php

$sur = new CairoImageSurface(CairoFormat::ARGB32, 50, 50);
$con = new CairoContext($sur);

var_dump($con->fontExtents());

?>

The above example will output something similar to:

array(5) {
  ["ascent"]=>
  float(10)
  ["descent"]=>
  float(3)
  ["height"]=>
  float(13.3125)
  ["max_x_advance"]=>
  float(26.65625)
  ["max_y_advance"]=>
  float(0)
}

Procedural style

<?php

$sur = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, 50, 50);
$con = cairo_create($sur);

var_dump(cairo_font_extents($con));

?>

The above example will output something similar to:

array(5) {
  ["ascent"]=>
  float(10)
  ["descent"]=>
  float(3)
  ["height"]=>
  float(13.3125)
  ["max_x_advance"]=>
  float(26.65625)
  ["max_y_advance"]=>
  float(0)
}

Links:

http://php.net/manual/en/cairocontext.fontextents.php

doc_php

2016-02-24 15:58:56

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