Function

Summary

Creates a graphics state object.

Signature

make-graphics-state &key transform
 foreground
 background

                operation
 thickness scale-thickness

                dashed
 dash
 line-end-style 

                line-joint-style mask
 font
 fill-style                 stipple pattern mask-x
 mask-y

Values

A graphics state object.

Description

The make-graphics-state function creates a graphics state object. Each graphics port has a graphics state associated with it, but you may want to create your own individual graphics states for use in specialized drawing operations. Graphics state objects do not consume local resources beyond dynamic memory for the structure (so you can be relaxed about creating them in some number if you really need to). Such objects are used in the with-graphics-state macro described below and modified using the following functions:

graphics-state-transform

graphics-state-foreground

graphics-state-background

graphics-state-operation

graphics-state-stipple

graphics-state-pattern

graphics-state-thickness

graphics-state-scale-thickness

graphics-state-dashed

graphics-state-dash

graphics-state-fill-style

graphics-state-line-end-style

graphics-state-line-joint-style

graphics-state-mask

graphics-state-mask-x

graphics-state-mask-y

graphics-state-font

These are the read and write (via setf ) accessors for the graphics state slots. See the LispWorks CAPI User Guide for valid values for these slots.