This topic covers the implementation details of TBoxStyle.
Scope: TypeDefinitions.pas; record. Prepared from the curated implementation supplied for this review on 2 October 2026.
Simple box-style record. Its DoesSomething predicate and read/write fields specify whether its stored settings have an effect. This structure is separate from named style-sheet attributes.
Notation and shared helper rules: Reading this reference.
Literal rec_type values emitted within these routines: TBoxStyle. Nested values may belong to child wrappers rather than this owner itself; the attribute entries below give their exact locations.
Structures used directly by this XML implementation:
Exact XML fields and attributes
The paths below start at this record or property node. A slash identifies a child element; @ identifies an attribute. Curly braces mark a variable index or expression, not literal XML text. Initial values describe initialization; they do not establish what an omitted individual element does. The Implementation toggle below contains the supplied routines for exact branch order and conversions.
@rec_type
XML representation: The rec_type attribute.
Writing: Stores the literal text “TBoxStyle” whenever the writer reaches this field.
Nested records and repeated elements
Operation |
XML location |
When it is processed |
Read Background |
Background |
the record node exists; node2 exists |
Read Frame |
Frame |
the record node exists; node2 exists |
Write Background |
Background |
the record’s DoesSomething check succeeds |
Write Frame |
Frame |
the record’s DoesSomething check succeeds |
Initialization and reset values
This type has no separate initializer in the supplied code. Its starting values come from its enclosing object, inherited initialization, or existing state. Relevant enclosing initializers are identified below.
Enclosing initialization contexts
The following enclosing routines establish or override this record’s starting values. Follow the owner link for the complete initializer. Different enclosing objects can supply different defaults.
TMiniCalOptions.Create is documented in TMiniCalOptions.
Text-style marker encoding
An empty style set is the empty string. A nonempty set has a leading comma, a comma after every marker and a trailing comma: for example ,B,I,FOSI,. The parser looks for complete case-sensitive marker substrings. HIDE replaces the ordinary style selection; RSET and IGNR are still processed. tsoAppend is declared but is not encoded by these two helpers.
Stored marker |
Style member |
HIDE |
tsoHide |
B |
tsoBold |
I |
tsoItalic |
UL |
tsoUnderline |
O |
tsoOutline |
SHD |
tsoShadow |
STRK |
tsoStrikeThru |
WUL |
tsoWordUnderline |
SCAP |
tsoSmallCaps |
ALLC |
tsoAllCaps |
SUP |
tsoSuperScript |
SUB |
tsoSubscript |
OVRPRT+ |
tsoOverprint |
FONA |
tsoFontName |
FOSI |
tsoFontSize |
FOSH |
tsoFontShade |
FOOP |
tsoFontOpacity |
FOCO |
tsoFontColor |
CHTX |
tsoChangeText |
HOSC |
tsoHorScale |
VESC |
tsoVertScale |
TRAK |
tsoTrack |
KERN |
tsoKern |
BASH |
tsoBaseShift |
SKW |
tsoSkew |
LEAD |
tsoLeading |
RSET |
tsoReset |
IGNR |
tsoIgnoreAllOthers |
Storage declarations relevant to interpretation
These are in-memory member and property types, not a list of mandatory XML children. They retain array bounds, fixed buffers and selector types. The field reference above defines what is actually serialized.
Name |
Declared type / bounds |
Kind |
Background |
TColorAttr |
member |
Frame |
TFrameAttr |
member |
Font |
TFontAttr |
member |
The Implementation toggle contains only TBoxStyle methods. Initializers and helpers belonging to other types are identified separately below. Shared XML-helper limitations are explained in Reading this reference.
Declaration reproduces this record’s complete declaration from the supplied source, including its fields, properties and method signatures.
