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Passing all internal tests.

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This commit is contained in:
Michael Griebling
2023-01-16 08:08:59 -05:00
parent fad14cfa3b
commit 467be71ce4
3 changed files with 209 additions and 112 deletions
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229
Sources/SwiftMathRender/MathRender/MTMathListDisplay.swift
View File

@@ -146,19 +146,25 @@ class MTCTLineDisplay : MTDisplay {
}
}
// func set(attrString: NSAttributedString?) {
// attributedString = attrString
// line = CTLineCreateWithAttributedString(attributedString!)
// }
func set(textColor:MTColor) {
self.textColor = textColor
let attrStr = NSMutableAttributedString(attributedString: self.attributedString!)
let foregroundColor = NSAttributedString.Key(kCTForegroundColorAttributeName as String)
attrStr.addAttribute(foregroundColor, value:self.textColor!.cgColor, range:NSMakeRange(0, attrStr.length))
self.attributedString = attrStr
override var textColor: MTColor? {
set {
super.textColor = newValue
let attrStr = NSMutableAttributedString(attributedString: self.attributedString!)
let foregroundColor = NSAttributedString.Key(kCTForegroundColorAttributeName as String)
attrStr.addAttribute(foregroundColor, value:self.textColor!.cgColor, range:NSMakeRange(0, attrStr.length))
self.attributedString = attrStr
}
get { super.textColor }
}
// func set(textColor:MTColor) {
// self.textColor = textColor
// let attrStr = NSMutableAttributedString(attributedString: self.attributedString!)
// let foregroundColor = NSAttributedString.Key(kCTForegroundColorAttributeName as String)
// attrStr.addAttribute(foregroundColor, value:self.textColor!.cgColor, range:NSMakeRange(0, attrStr.length))
// self.attributedString = attrStr
// }
func computeDimensions(_ font:MTFont?) {
let runs = CTLineGetGlyphRuns(line) as NSArray
for obj in runs {
@@ -229,20 +235,30 @@ class MTMathListDisplay : MTDisplay {
self.recomputeDimensions()
}
func setType(_ type:LinePosition) {
self.type = type
}
// func setType(_ type:LinePosition) {
// self.type = type
// }
//
// func setIndex(_ index:Int) {
// self.index = index
// }
func setIndex(_ index:Int) {
self.index = index
}
func setTextColor(_ textColor:MTColor) {
// Set the color on all subdisplays
self.textColor = textColor
for displayAtom in self.subDisplays {
displayAtom.textColor = textColor
// func setTextColor(_ textColor:MTColor) {
// // Set the color on all subdisplays
// self.textColor = textColor
// for displayAtom in self.subDisplays {
// displayAtom.textColor = textColor
// }
// }
override var textColor: MTColor? {
set {
super.textColor = newValue
for displayAtom in self.subDisplays {
displayAtom.textColor = newValue
}
}
get { super.textColor }
}
func draw(context: CGContext) {
@@ -341,16 +357,22 @@ class MTFractionDisplay : MTDisplay {
numerator?.position = CGPointMake(self.position.x + (self.width - numerator!.width)/2, self.position.y + self.numeratorUp)
}
func setPosition(_ position: CGPoint) {
super.position = position
self.updateDenominatorPosition()
self.updateNumeratorPosition()
override var position: CGPoint {
set {
super.position = newValue
self.updateDenominatorPosition()
self.updateNumeratorPosition()
}
get { super.position }
}
func setTextColor(_ textColor:MTColor) {
super.textColor = textColor
numerator?.textColor = textColor
denominator?.textColor = textColor
override var textColor: MTColor? {
set {
super.textColor = newValue
numerator?.textColor = newValue
denominator?.textColor = newValue
}
get { super.textColor }
}
override func draw(_ context:CGContext) {
@@ -387,6 +409,23 @@ class MTRadicalDisplay : MTDisplay {
*/
var degree:MTMathListDisplay?
override var position: CGPoint {
set {
super.position = newValue
self.updateRadicandPosition()
}
get { super.position }
}
override var textColor: MTColor? {
set {
super.textColor = newValue
self.radicand!.textColor = newValue
self.degree!.textColor = newValue
}
get { super.textColor }
}
private var _radicalGlyph:MTDisplay?
private var _radicalShift:CGFloat=0
@@ -430,10 +469,10 @@ class MTRadicalDisplay : MTDisplay {
self.updateRadicandPosition()
}
func setPosition(_ position:CGPoint) {
super.position = position
self.updateRadicandPosition()
}
// func setPosition(_ position:CGPoint) {
// super.position = position
// self.updateRadicandPosition()
// }
func updateRadicandPosition() {
// The position of the radicand includes the position of the MTRadicalDisplay
@@ -443,11 +482,11 @@ class MTRadicalDisplay : MTDisplay {
self.radicand!.position = CGPointMake(self.position.x + _radicalShift + _radicalGlyph!.width, self.position.y);
}
func setTextColor(textColor:MTColor) {
super.textColor = textColor
self.radicand!.textColor = textColor
self.degree!.textColor = textColor
}
// func setTextColor(textColor:MTColor) {
// super.textColor = textColor
// self.radicand!.textColor = textColor
// self.degree!.textColor = textColor
// }
func draw(context: CGContext) {
// draw the radicand & degree at its position
@@ -662,14 +701,23 @@ class MTLargeOpLimitsDisplay : MTDisplay {
}
}
}
func setPosition(_ position:CGPoint) {
super.position = position;
self.updateLowerLimitPosition()
self.updateUpperLimitPosition()
self.updateNucleusPosition()
override var position: CGPoint {
set {
self.updateLowerLimitPosition()
self.updateUpperLimitPosition()
self.updateNucleusPosition()
}
get { super.position }
}
// func setPosition(_ position:CGPoint) {
// super.position = position;
// self.updateLowerLimitPosition()
// self.updateUpperLimitPosition()
// self.updateNucleusPosition()
// }
func updateLowerLimitPosition() {
if self.lowerLimit != nil {
// The position of the lower limit includes the position of the MTLargeOpLimitsDisplay
@@ -696,14 +744,24 @@ class MTLargeOpLimitsDisplay : MTDisplay {
// Center the nucleus
nucleus?.position = CGPointMake(self.position.x + (self.width - nucleus!.width)/2, self.position.y);
}
func setTextColor(_ textColor:MTColor) {
super.textColor = textColor
self.upperLimit?.textColor = textColor
self.lowerLimit?.textColor = textColor
nucleus?.textColor = textColor
override var textColor: MTColor? {
set {
super.textColor = newValue
self.upperLimit?.textColor = newValue
self.lowerLimit?.textColor = newValue
nucleus?.textColor = newValue
}
get { super.textColor }
}
// func setTextColor(_ textColor:MTColor) {
// super.textColor = textColor
// self.upperLimit?.textColor = textColor
// self.lowerLimit?.textColor = textColor
// nucleus?.textColor = textColor
// }
override func draw(_ context:CGContext) {
// Draw the elements.
self.upperLimit?.draw(context)
@@ -732,11 +790,27 @@ class MTLineDisplay : MTDisplay {
self.position = position;
self.range = range;
}
func setTextColor(_ textColor:MTColor) {
super.textColor = textColor
inner?.textColor = textColor
override var textColor: MTColor? {
set {
super.textColor = newValue
inner?.textColor = newValue
}
get { super.textColor }
}
override var position: CGPoint {
set {
super.position = newValue
self.updateInnerPosition()
}
get { super.position }
}
// func setTextColor(_ textColor:MTColor) {
// super.textColor = textColor
// inner?.textColor = textColor
// }
override func draw(_ context:CGContext) {
self.inner?.draw(context)
@@ -757,10 +831,10 @@ class MTLineDisplay : MTDisplay {
context.restoreGState();
}
func setPosition(_ position:CGPoint) {
super.position = position;
self.updateInnerPosition()
}
// func setPosition(_ position:CGPoint) {
// super.position = position;
// self.updateInnerPosition()
// }
func updateInnerPosition() {
self.inner?.position = CGPointMake(self.position.x, self.position.y);
@@ -789,16 +863,33 @@ class MTAccentDisplay : MTDisplay {
self.accentee?.position = CGPoint.zero
self.range = range
}
func setTextColor(_ textColor:MTColor) {
super.textColor = textColor
accentee?.textColor = textColor
accent?.textColor = textColor
override var textColor: MTColor? {
set {
super.textColor = newValue
accentee?.textColor = newValue
accent?.textColor = newValue
}
get { super.textColor }
}
func setPosition(_ position:CGPoint) {
super.position = position
self.updateAccenteePosition()
// func setTextColor(_ textColor:MTColor) {
// super.textColor = textColor
// accentee?.textColor = textColor
// accent?.textColor = textColor
// }
// func setPosition(_ position:CGPoint) {
// super.position = position
// self.updateAccenteePosition()
// }
override var position: CGPoint {
set {
super.position = newValue
self.updateAccenteePosition()
}
get { super.position }
}
func updateAccenteePosition() {

39
Sources/SwiftMathRender/MathRender/MTTypesetter.swift
View File

@@ -1079,40 +1079,39 @@ class MTTypesetter {
}
func makeRadical(_ radicand:MTMathList?, range:NSRange) -> MTRadicalDisplay? {
let innerDisplay = MTTypesetter.createLineForMathList(radicand, font:font, style:style, cramped:true)
var clearance : CGFloat = self.radicalVerticalGap()
let radicalRuleThickness : CGFloat = styleFont.mathTable!.radicalRuleThickness
let radicalHeight = innerDisplay!.ascent + innerDisplay!.descent + clearance + radicalRuleThickness;
let glyph = self.getRadicalGlyphWithHeight(radicalHeight)
let innerDisplay = MTTypesetter.createLineForMathList(radicand, font:font, style:style, cramped:true)!
var clearance = self.radicalVerticalGap()
let radicalRuleThickness = styleFont.mathTable!.radicalRuleThickness
let radicalHeight = innerDisplay.ascent + innerDisplay.descent + clearance + radicalRuleThickness
let glyph = self.getRadicalGlyphWithHeight(radicalHeight)!
// Note this is a departure from Latex. Latex assumes that glyphAscent == thickness.
// Open type math makes no such assumption, and ascent and descent are independent of the thickness.
// Latex computes delta as descent - (h(inner) + d(inner) + clearance)
// but since we may not have ascent == thickness, we modify the delta calculation slightly.
// If the font designer followes Latex conventions, it will be identical.
let delta : CGFloat = (glyph!.descent + glyph!.ascent) - (innerDisplay!.ascent + innerDisplay!.descent + clearance + radicalRuleThickness);
let delta = (glyph.descent + glyph.ascent) - (innerDisplay.ascent + innerDisplay.descent + clearance + radicalRuleThickness)
if delta > 0 {
clearance += delta/2; // increase the clearance to center the radicand inside the sign.
clearance += delta/2 // increase the clearance to center the radicand inside the sign.
}
// we need to shift the radical glyph up, to coincide with the baseline of inner.
// The new ascent of the radical glyph should be thickness + adjusted clearance + h(inner)
let radicalAscent = radicalRuleThickness + clearance + innerDisplay!.ascent;
let shiftUp = radicalAscent - glyph!.ascent; // Note: if the font designer followed latex conventions, this is the same as glyphAscent == thickness.
glyph!.shiftDown = -shiftUp;
let radicalAscent = radicalRuleThickness + clearance + innerDisplay.ascent
let shiftUp = radicalAscent - glyph.ascent // Note: if the font designer followed latex conventions, this is the same as glyphAscent == thickness.
glyph.shiftDown = -shiftUp
let radical = MTRadicalDisplay(withRadicand: innerDisplay, glyph: glyph!, position: currentPosition, range: range)
radical.ascent = radicalAscent + styleFont.mathTable!.radicalExtraAscender;
radical.topKern = styleFont.mathTable!.radicalExtraAscender;
radical.lineThickness = radicalRuleThickness;
let radical = MTRadicalDisplay(withRadicand: innerDisplay, glyph: glyph, position: currentPosition, range: range)
radical.ascent = radicalAscent + styleFont.mathTable!.radicalExtraAscender
radical.topKern = styleFont.mathTable!.radicalExtraAscender
radical.lineThickness = radicalRuleThickness
// Note: Until we have radical construction from parts, it is possible that glyphAscent+glyphDescent is less
// than the requested height of the glyph (i.e. radicalHeight), so in the case the innerDisplay has a larger
// descent we use the innerDisplay's descent.
radical.descent = max(glyph!.ascent + glyph!.descent - radicalAscent, innerDisplay!.descent);
radical.width = glyph!.width + innerDisplay!.width;
return radical;
radical.descent = max(glyph.ascent + glyph.descent - radicalAscent, innerDisplay.descent)
radical.width = glyph.width + innerDisplay.width
return radical
}
// MARK: - Glyphs
@@ -1170,9 +1169,7 @@ class MTTypesetter {
}
func constructGlyphWithParts(_ parts:[GlyphPart], glyphHeight:CGFloat, glyphs:inout [NSNumber], offsets:inout [NSNumber], height:inout CGFloat) {
// assert(!glyphs.isEmpty)
// assert(!offsets.isEmpty)
// Loop forever until the glyph height is valid
for numExtenders in 0..<Int.max {
var glyphsRv = [NSNumber]()
var offsetsRv = [NSNumber]()