Style Objects (IM: XG)

Inside Macintosh: QuickDraw GX Graphics /

Chapter 3 - Geometric Styles / Geometric Styles Reference

Style Objects
You use the gxStyle data type when referring to a style object. This data type is described in full in the chapter "Style Objects" of Inside Macintosh: QuickDraw GX Objects.
Style objects have owner counts, tags, typographic style properties, and seven geometric style properties. The owner count and tags properties are described in Inside Macintosh: QuickDraw GX Objects. The typographic style properties are described in Inside Macintosh: QuickDraw GX Typography. The geometric style properties are listed here:

Style attributes. This property is a group of flags that modify the behavior of the style object. The section "Style Attributes" on page 3-17 discusses the effects of these attributes. The section "Style Attributes" on page 3-98 describes the style attribute flags, and "Getting and Setting Style Attributes" on page 3-109 describes the functions you can use to examine or alter style attribute flags.
Curve error. This property specifies the allowable amount of error when QuickDraw GX converts a path shape into a polygon shape. It also specifies how far apart geometric points must be for QuickDraw GX to consider them separate points when reducing or simplifying a shape. The section "Curve Error" on page 3-14 discusses the curve error property and the sections "Using Curve Error When Converting Paths to Polygons" on page 3-45 and "Using Curve Error When Reducing Shapes" on page 3-49 give examples of using curve error. The section "Getting and Setting Curve Error" on page 3-114 describes the functions you can use to examine or alter this property.
Pen width. This property specifies the thickness of the pen QuickDraw GX uses to draw the contours of a shape. "The Geometric Pen" on page 3-15 describes how QuickDraw GX uses the pen when drawing, and "Getting and Setting the Pen Width" beginning on page 3-119 describes the functions you can use to examine or alter the pen width.
Cap. This property specifies what QuickDraw GX should draw at the start and the end of a shape's contours. The section "Caps" on page 3-23 describes start and end caps, the sections "The Cap Structure" on page 3-99 and "Cap Attributes" on page 3-101 discuss the data types you use to describe start and end caps, and the section "Getting and Setting Caps" beginning on page 3-123 describes the functions you can use to examine or alter a shape's start and end caps.
Join. This property specifies what QuickDraw GX draws at the corners of a shape's geometry. The section "Joins" on page 3-25 describes corner joins, the sections "The Join Structure" on page 3-101 and "Join Attributes" on page 3-102 discuss the data types you use to describe corner joins, and the section "Getting and Setting Joins" beginning on page 3-129 describes the functions you can use to examine or alter a shape's corner joins.
Dash. This property specifies how QuickDraw GX should dash the contours of a shape. The section "Dashes" on page 3-27 describes dashes, the sections "The Dash Structure" on page 3-103 and "Dash Attributes" on page 3-105 discuss the data types you use to describe dashes, and the section "Getting and Setting Dashes" beginning on page 3-134 describes the functions you can use to examine or alter a shape's dashes.
Pattern. This property specifies how QuickDraw GX should fill the geometry of a shape with a pattern. The section "Patterns" on page 3-31 describes patterns, the sections "The Pattern Structure" on page 3-106 and "Pattern Attributes" on page 3-107 discuss the data types you use to describe patterns, and the section "Getting and Setting Patterns" beginning on page 3-142 describes the functions you can use to examine or alter a shape's pattern.