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Fixed a "choose" line thickness issue.

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Mac actually draws a line of zero width.
This commit is contained in:
Michael Griebling
2023-01-19 07:27:15 -05:00
parent deb723691c
commit 61a088a3f9
3 changed files with 11 additions and 6 deletions
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2
README.md
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@@ -7,6 +7,8 @@ so the equations are rendered exactly as LaTeX would render them.
` `
SwiftMath` is a Swift translation of the latest `iosMath` v0.9.5 release but includes bug fixes SwiftMath` is a Swift translation of the latest `iosMath` v0.9.5 release but includes bug fixes
and enhancements like a new \lbar (lambda bar) character and cyrillic alphabet support. and enhancements like a new \lbar (lambda bar) character and cyrillic alphabet support.
The original `iosMath` test suites have also been translated to Swift and run without errors.
Note: Error test conditions are ignored to avoid tagging everything with silly `throw`s.
Please let me know of any bugs or bug fixes that you find. Please let me know of any bugs or bug fixes that you find.
`SwiftMath` prepackages everything needed for direct access via the Swift Package Manager. `SwiftMath` prepackages everything needed for direct access via the Swift Package Manager.

3
Sources/SwiftMath/MathRender/MTMathListDisplay.swift
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@@ -369,11 +369,14 @@ class MTFractionDisplay : MTDisplay {
self.textColor?.setStroke() self.textColor?.setStroke()
// draw the horizontal line // draw the horizontal line
// Note: line thickness of 0 draws the thinnest possible line - we want no line so check for 0s
if self.lineThickness > 0 {
let path = MTBezierPath() let path = MTBezierPath()
path.move(to: CGPointMake(self.position.x, self.position.y + self.linePosition)) path.move(to: CGPointMake(self.position.x, self.position.y + self.linePosition))
path.addLine(to: CGPointMake(self.position.x + self.width, self.position.y + self.linePosition)) path.addLine(to: CGPointMake(self.position.x + self.width, self.position.y + self.linePosition))
path.lineWidth = self.lineThickness path.lineWidth = self.lineThickness
path.stroke() path.stroke()
}
context.restoreGState() context.restoreGState()
} }

2
Sources/SwiftMath/MathRender/MTTypesetter.swift
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@@ -962,7 +962,7 @@ class MTTypesetter {
var numeratorShiftUp = self.numeratorShiftUp(frac!.hasRule) var numeratorShiftUp = self.numeratorShiftUp(frac!.hasRule)
var denominatorShiftDown = self.denominatorShiftDown(frac!.hasRule) var denominatorShiftDown = self.denominatorShiftDown(frac!.hasRule)
let barLocation = styleFont.mathTable!.axisHeight let barLocation = styleFont.mathTable!.axisHeight
let barThickness = frac!.hasRule ? styleFont.mathTable!.fractionRuleThickness : 0; let barThickness = frac!.hasRule ? styleFont.mathTable!.fractionRuleThickness : 0
if frac!.hasRule { if frac!.hasRule {
// This is the difference between the lowest edge of the numerator and the top edge of the fraction bar // This is the difference between the lowest edge of the numerator and the top edge of the fraction bar