Class: GraphicsAttributes

• Inheritance
• Description
• Instance protocol
  • accessing
  • installing

Inheritance:

   Object
   |
   +--GraphicsAttributes

Package:

stx:libview

Category:

Graphics-Support

Version:

rev: 1.4 date: 1995-11-11 15:51:01

user: cg

file: GraphicsAttributes.st directory: libview

module: stx stc-classLibrary: libview

Description:

instances keep multiple graphics attributes as used in a graphicsContext.
They can be used when multiple attributes are to be set.
This class is (currently) not used by the system, but has been added
to make porting of existing ST-80 applications easier.

Instance variables:

    paint           <Color>         the paint to be used for drawing
    font            <Font>          the font to be used for drawing
    lineStyle       <Symbol>        the lineStyle (i.e. #solid, #dashed, #doubleDashed)
    lineWidth       <SmallInteger>  the lineWidth (device dependent, usually pixels)
    joinStyle       <Symbol>        the style in which lines (in polygons)
                                    are joined (i.e. #miter, #bevel, #round)
    capStyle        <Symbol>        the style in which the last point of a line is drawn
                                    (i.e. #notLast, #butt, #round, #projecting)
    maskOrigin      <Point>         the origin of the mask relative to
                                    the drawables origin

CAVEAT: the maskOrigin is called phase in ST-80

Instance protocol:

 capStyle

return the cap-style for line-drawing

 capStyle: aStyleSymbol

set the cap-style for line-drawing;
possible styles are: #notLast, #butt, #round, #projecting

 font

return the drawing font

 font: aFont

set the drawing font

 joinStyle

return the join-style for polygon-drawing

 joinStyle: aStyleSymbol

set the join-style of lines in polygon-drawing;
possible styles are: #miter, #bevel, #round

 lineStyle

return the line-drawing-style

 lineStyle: aStyleSymbol

set the line-drawing-style;
possible styles are: #solid, #dashed, #doubleDashed

 lineWidth

return the drawing linewidth

 lineWidth: aNumber

set the line drawing width in pixels

 maskOrigin: aPoint

set the origin within the mask (used to draw with patterns).
This is an alias for ST-80's #phase

 maskOriginX: x y: y

set the origin within the mask (used to draw with patterns).

 paint

return the current paint drawing color

 paint: aColor

set the drawing painting color

 phase

return the origin within the mask (used to draw with patterns).
This is an alias for ST/X's #maskOrigin

 phase: aPoint

set the origin within the mask (used to draw with patterns).
This is an alias for ST/X's #maskOrigin:

 installOn: aGC