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import options
import css/stylednode
import css/values
import html/dom
import io/window
type
#LayoutUnit* = distinct int32
LayoutUnit* = int
Offset* = object
x*: LayoutUnit
y*: LayoutUnit
Size* = object
width*: LayoutUnit
height*: LayoutUnit
Strut* = object
pos*: int
neg*: int
Viewport* = ref object
window*: WindowAttributes
root*: BlockBox
BoxBuilder* = ref object of RootObj
children*: seq[BoxBuilder]
inlinelayout*: bool
computed*: CSSComputedValues
node*: StyledNode
InlineBoxBuilder* = ref object of BoxBuilder
text*: seq[string]
ictx*: InlineContext
newline*: bool
BlockBoxBuilder* = ref object of BoxBuilder
listItemCounter: int # ordinal value of current list
InlineBlockBoxBuilder* = ref object of BoxBuilder
content*: BlockBoxBuilder # iblock.bctx is equivalent to box.bctx
MarkerBoxBuilder* = ref object of InlineBoxBuilder
ListItemBoxBuilder* = ref object of BoxBuilder
marker*: MarkerBoxBuilder
content*: BlockBoxBuilder
TableRowGroupBoxBuilder* = ref object of BoxBuilder
TableRowBoxBuilder* = ref object of BoxBuilder
TableCellBoxBuilder* = ref object of BoxBuilder
colspan*: int
TableBoxBuilder* = ref object of BlockBoxBuilder
rowgroups*: seq[TableRowGroupBoxBuilder]
InlineAtom* = ref object of RootObj
offset*: Offset
width*: int
height*: int
vertalign*: CSSVerticalAlign
baseline*: int
top*: int
bottom*: int
ComputedFormat* = ref object
fontstyle*: CSSFontStyle
fontweight*: int
textdecoration*: CSSTextDecoration
color*: CSSColor
node*: StyledNode
InlineSpacing* = ref object of InlineAtom
format*: ComputedFormat
InlineWord* = ref object of InlineAtom
str*: string
format*: ComputedFormat
LineBox* = ref object
atoms*: seq[InlineAtom]
offset*: Offset
width*: int
height*: int
baseline*: int
lineheight*: int #line-height property
InlineContext* = ref object
offset*: Offset
height*: int
lines*: seq[LineBox]
currentLine*: LineBox
whitespacenum*: int
maxwidth*: int
viewport*: Viewport
node*: Node
shrink*: bool
format*: ComputedFormat
BlockBox* = ref object of RootObj
inline*: InlineContext
nested*: seq[BlockBox]
computed*: CSSComputedValues
viewport*: Viewport
offset*: Offset
width*: int
height*: int
margin_top*: int
margin_bottom*: int
margin_left*: int
margin_right*: int
padding_top*: int
padding_bottom*: int
padding_left*: int
padding_right*: int
compwidth*: int
maxwidth*: int
nocenter*: bool
compheight*: Option[int]
shrink*: bool
ListItemBox* = ref object of BlockBox
marker*: InlineContext
TableCellBox* = ref object of BlockBox
colspan*: int
TableRowGroupBox* = ref object of BlockBox
TableRowBox* = ref object of BlockBox
TableBox* = ref object of BlockBox
InlineBlockBox* = ref object of InlineAtom
bctx*: BlockBox
margin_top*: int
margin_bottom*: int
proc append*(a: var Strut, b: int) =
if b < 0:
a.neg = min(b, a.neg)
else:
a.pos = max(b, a.pos)
func sum*(a: Strut): int =
return a.pos + a.neg
#proc `div`(a, b: LayoutUnit): LayoutUnit {.borrow.}
#
#func `+`*(a, b: LayoutUnit): LayoutUnit {.borrow.}
#func `-`*(a, b: LayoutUnit): LayoutUnit {.borrow.}
#func `*`*(a, b: LayoutUnit): LayoutUnit {.borrow.}
#func `/`*(a, b: LayoutUnit): LayoutUnit = a div b
#
#proc `+=`*(a: var LayoutUnit, b: LayoutUnit) {.borrow.}
#proc `-=`*(a: var LayoutUnit, b: LayoutUnit) {.borrow.}
#proc `*=`*(a: var LayoutUnit, b: LayoutUnit) {.borrow.}
#proc `/=`*(a: var LayoutUnit, b: LayoutUnit) = a = a div b
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