Introduce Meshes for bounding box computations

Project.toml

@@ -12,10 +12,12 @@ Dates = "ade2ca70-3891-5945-98fb-dc099432e06a"
 FixedPointNumbers = "53c48c17-4a7d-5ca2-90c5-79b7896eea93"
 GeometryExperiments = "1147bd75-18e1-436d-adda-d58e854f897d"
 HarfBuzz_jll = "2e76f6c2-a576-52d4-95c1-20adfe4de566"
+Meshes = "eacbb407-ea5a-433e-ab97-5258b1ca43fa"
 Reexport = "189a3867-3050-52da-a836-e630ba90ab69"
 StaticArrays = "90137ffa-7385-5640-81b9-e52037218182"
 StyledStrings = "f489334b-da3d-4c2e-b8f0-e476e12c162b"
 SwapStreams = "0b152c4a-7e29-418b-9258-223db38db9d9"
+Unitful = "1986cc42-f94f-5a68-af5c-568840ba703d"
 
 [compat]
 BinaryParsingTools = "0.1"
@@ -29,6 +31,7 @@ Reexport = "1"
 StaticArrays = "1"
 StyledStrings = "1"
 SwapStreams = "0.2"
+Unitful = "1.21.0"
 julia = "1.11"
 
 [extras]

src/OpenType.jl

@@ -12,6 +12,10 @@ using StaticArrays
 using Reexport
 using HarfBuzz_jll: libharfbuzz
 using .Meta: isexpr
+using Meshes: Box
+using Unitful: @u_str
+
+const cm = u"cm"
 
 const Vec = SVector
 const Vec2 = SVector{2,Float64}

src/text.jl

@@ -257,7 +257,7 @@ function segment_geometry(line::Line, segment::LineSegment)
   xmin, _ = line.positions[first(segment.indices)]
   width = sum(first, @view line.advances[segment.indices]; init = 0.0)
   xmax = xmin + width
-  Box(Point2(xmin, ymin), Point2(xmax, ymax))
+  Box((xmin, ymin) .* cm, (xmax, ymax) .* cm)
 end
 
 function line_geometry(line::Line)
@@ -267,7 +267,7 @@ function line_geometry(line::Line)
   ymax = ascender(line)
   width = sum(first, line.advances; init = 0.0)
   xmax = xmin + width
-  Box(Point2(xmin, ymin), Point2(xmax, ymax))
+  Box((xmin, ymin) .* cm, (xmax, ymax) .* cm)
 end
 
 function has_outlines(line::Line, segment::LineSegment)

test/runtests.jl

@@ -1,10 +1,10 @@
 using OpenType, Test
 using OpenType: Text, lines, extract_style_from_text, CharacterStyle, hb_shape, Vec, Vec2, cm
 using BinaryParsingTools
-using GeometryExperiments: Point2
 using Accessors: @set, @reset
 using StyledStrings
 using Colors
+using Meshes: Point, coords
 
 include("utils.jl")
 

test/text.jl

@@ -73,9 +73,10 @@
   @test sprint(show, MIME"text/plain"(), segment) isa String
   @test segment.indices == eachindex(t.chars)
   box = text_geometry(t, [font => options])
-  @test box.min === Point2(0, 0)
-  @test 1.82 < box.max[1] < 1.83
-  @test 0.096 < box.max[2] < 0.097
+  @test box.min == Point(0, 0)
+  cs = coords(box.max)
+  @test 1.82cm < cs.x < 1.83cm
+  @test 0.096cm < cs.y < 0.097cm
 
   t = Text(styled"The {bold:brown} {red:fox {italic:jumps}} over the {italic:lazy} dog.", TextOptions())
   box2 = text_geometry(t, [font => options])