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(PECL cairo >= 0.1.0)
CairoContext::clipRectangleList -- cairo_clip_rectangle_list — Retrieves the current clip as a list of rectangles
面向对象风格 (method):
过程化风格:
$context
)Returns a list-type array with the current clip region as a list of rectangles in user coordinates
context
A valid CairoContext object created with CairoContext::__construct() or cairo_create()
An array of user-space represented rectangles for the current clip
(The status in the list may be CAIRO_STATUS_CLIP_NOT_REPRESENTABLE to indicate that the clip region cannot be represented as a list of user-space rectangles. The status may have other values to indicate other errors.)
Example #1 面向对象风格
<?php
$surface = new CairoImageSurface ( CairoFormat :: ARGB32 , 50 , 50 );
$context = new CairoContext ( $surface );
var_dump ( $context -> clipRectangleList ());
?>
以上例程的输出类似于:
array(1) { [0]=> array(4) { ["x"]=> float(0) ["y"]=> float(0) ["width"]=> float(50) ["height"]=> float(50) } }
Example #2 过程化风格
<?php
$surface = cairo_image_surface_create ( CAIRO_FORMAT_ARGB32 , 50 , 50 );
$context = cairo_create ( $surface );
var_dump ( cairo_clip_rectangle_list ( $context ));
?>
以上例程的输出类似于:
array(1) { [0]=> array(4) { ["x"]=> float(0) ["y"]=> float(0) ["width"]=> float(50) ["height"]=> float(50) } }