Function

Summary

Creates a graphics state object.

Package

graphics-ports

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
=> state

Values

state

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 "Graphics state" section in the LispWorks CAPI User Guide for valid values for slots of the graphics state.

Note: These slots are used only on Unix: fill-style stipple pattern mask-x mask-y .

Note: operation is not supported for drawing text on Windows.

See also

set-graphics-state