PHP Australia Conference 2015

The CairoContent class

Introduction

CairoContent is used to describe the content that a surface will contain, whether color information, alpha information (translucence vs. opacity), or both.

Note: The large values here are designed to keep CairoContent values distinct from CairoContent values so that the implementation can detect the error if users confuse the two types.

Class synopsis

CairoContent {
/* Constants */
const integer CairoContent::COLOR = 4096 ;
const integer CairoContent::ALPHA = 8192 ;
const integer CairoContent::COLOR_ALPHA = 12288 ;
}

Predefined Constants

CairoContent Node Types

CairoContent::COLOR

The surface will hold color content only.

CairoContent::ALPHA

The surface will hold alpha content only.

CairoContent::COLOR_ALPHA

The surface will hold color and alpha content.

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