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.