curioustorvald/Terrarum-sans-bitmap
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more fair penaltying

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minjaesong
2024-05-03 03:08:51 +09:00
parent 74695f519b
commit c2b491cc8d
2 changed files with 67 additions and 36 deletions
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99
src/net/torvald/terrarumsansbitmap/MovableType.kt
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@@ -81,7 +81,7 @@ class MovableType(
///////////////////////////////////////////////////////////////////////////////////////////////
// the slug is likely end with a glue, must take care of it (but don't modify the slug itself)
fun getBadnessW(box: NoTexGlyphLayout): Triple<Double, Int, Any?> {
fun getBadnessW(box: NoTexGlyphLayout, availableGlues: Int): Triple<Double, Int, Any?> {
val slug = slug.toMutableList()
// remove the trailing glue(s?) in the slug copy
@@ -96,12 +96,12 @@ class MovableType(
slugWidth -= hangWidthFW
val difference = (paperWidth - slugWidth).absoluteValue
val badness = penaliseWidening(difference, paperWidth.toDouble())
val badness = penaliseWidening(difference, availableGlues.toDouble())
return Triple(badness, difference, null)
}
fun getBadnessT(box: NoTexGlyphLayout): Triple<Double, Int, Any?> {
fun getBadnessT(box: NoTexGlyphLayout, availableGlues: Int): Triple<Double, Int, Any?> {
val slug = slug.toMutableList()
// add the box to the slug copy
@@ -115,22 +115,25 @@ class MovableType(
slugWidth -= hangWidthFW
val difference = (paperWidth - slugWidth).absoluteValue
val badness = penaliseTightening(difference, paperWidth.toDouble())
val badness = penaliseTightening(difference, availableGlues.toDouble())
return Triple(badness, difference, null)
}
fun getBadnessH(box: NoTexGlyphLayout, diff: Int): Triple<Double, Int, Any?> {
fun getBadnessH(box: NoTexGlyphLayout, diff: Int, availableGlues: Int): Triple<Double, Int, Any?> {
// don't hyphenate if:
// - the word is too short (5 chars or less)
// - the word is pre-hyphenated (ends with hyphen-null)
val glyphCount = box.text.count { it in 32..0xfffff }
if (glyphCount <= (if (paperWidth < 350) 4 else if (paperWidth < 480) 5 else 6) || box.text.penultimate() == 0x2D)
return Triple(2147483648.0, 2147483647, null)
return Triple(1111111111.0, 2147483647, null)
val slug = slug.toMutableList()
val (hyphHead, hyphTail) = box.text.hyphenate(font, diff).toList().map { createGlyphLayout(font, it) }
if (hyphTail.text.isEmpty())
return Triple(2222222222.0, 2147483647, null)
// add the hyphHead to the slug copy
val nextPosX = (slug.lastOrNull()?.getEndPos() ?: 0)
slug.add(Block(nextPosX, hyphHead))
@@ -142,7 +145,7 @@ class MovableType(
slugWidth -= hangWidthFW
val difference = (paperWidth - slugWidth)
val badness = penaliseHyphenation(difference.absoluteValue, paperWidth.toDouble())
val badness = penaliseHyphenation(difference.absoluteValue, availableGlues.toDouble())
return Triple(badness, difference, hyphHead to hyphTail)
}
@@ -168,24 +171,29 @@ class MovableType(
// text overflow occured; set the width to the max value
width = paperWidth
val initialGlueCount = slug.getGlueSizeSum(font)
// badness: always positive and weighted
// widthDelta: can be positive or negative
val (badnessW, widthDeltaW, _) = getBadnessW(box) // widthDeltaW is always positive
val (badnessT, widthDeltaT, _) = getBadnessT(box) // widthDeltaT is always positive
var (badnessH, widthDeltaH, hyph) = getBadnessH(box, box.width - slugWidthForOverflowCalc) // widthDeltaH can be anything
var (badnessW, widthDeltaW, _) = getBadnessW(box, initialGlueCount) // widthDeltaW is always positive
var (badnessT, widthDeltaT, _) = getBadnessT(box, initialGlueCount) // widthDeltaT is always positive
var (badnessH, widthDeltaH, hyph) = getBadnessH(box, box.width - slugWidthForOverflowCalc, initialGlueCount) // widthDeltaH can be anything
val disableHyphThre = 200.0 * paperWidth.toDouble().pow(0.25)
badnessT -= 0.1 // try to break even
badnessH -= 0.01 // try to break even
val disableHyphThre = 5.0
// println("\nLine: ${slug.map { it.block.text }.filter { it.isNotGlue() }.joinToString(" ") { it.toReadable() }}")
// println("W diff: $widthDeltaW, badness: $badnessW")
// println("T diff: $widthDeltaT, badness: $badnessT")
println("\nLine: ${slug.map { it.block.text }.filter { it.isNotGlue() }.joinToString(" ") { it.toReadable() }}")
println("W diff: $widthDeltaW, badness: $badnessW")
println("T diff: $widthDeltaT, badness: $badnessT")
if ((badnessW <= disableHyphThre || badnessT <= disableHyphThre) && badnessH > minOf(badnessW, badnessT) / 12.0) {
// println("H diff: $widthDeltaH, badness: $badnessH (disabled)")
if ((badnessW <= disableHyphThre || badnessT <= disableHyphThre)) {
println("H diff: $widthDeltaH, badness: $badnessH (disabled)")
badnessH = 2147483648.0
}
else {
// println("H diff: $widthDeltaH, badness: $badnessH")
println("H diff: $widthDeltaH, badness: $badnessH")
}
val (selectedBadness, selectedWidthDelta, selectedStrat) = listOf(
@@ -194,6 +202,14 @@ class MovableType(
Triple(badnessH, widthDeltaH, "Hyphenate"),
).minByOrNull { it.first }!!
if (selectedStrat == "Hyphenate") {
val (hyphHead, hyphTail) = hyph as Pair<NoTexGlyphLayout?, NoTexGlyphLayout?>
println("Selected: $selectedStrat (${hyphHead?.text?.toReadable()}, ${hyphTail?.text?.toReadable()}) (badness $selectedBadness, diff $selectedWidthDelta)")
}
else
println("Selected: $selectedStrat (badness $selectedBadness, diff $selectedWidthDelta)")
// println(" Line ${typesettedSlugs.size + 1} Strat: $selectedStrat (badness $selectedBadness, delta $selectedWidthDelta; full badness WTH = $badnessW, $badnessT, $badnessH; full delta WTH = $widthDeltaW, $widthDeltaT, $widthDeltaH)")
// println(" Interim Slug: [ ${slug.map { it.block.text.toReadable() }.joinToString(" | ")} ]")
@@ -656,12 +672,15 @@ class MovableType(
return this[this.size - 2]
}
private fun penaliseWidening(score: Int, paperWidth: Double): Double =
pow(score.toDouble(), 2.0)
private fun penaliseTightening(score: Int, paperWidth: Double): Double =
pow(score.toDouble(), 2.0)
private fun penaliseHyphenation(score: Int, paperWidth: Double): Double =
pow(score.toDouble().absoluteValue, 3.0 * tanh(paperWidth / 650.0))
private fun penaliseWidening(score: Int, availableGlues: Double): Double =
100.0 * (score / availableGlues).pow(3.0)
// pow(score.toDouble(), 2.0)
private fun penaliseTightening(score: Int, availableGlues: Double): Double =
100.0 * (score / availableGlues).pow(3.0)
// pow(score.toDouble(), 2.0)
private fun penaliseHyphenation(score: Int, availableGlues: Double): Double =
100.0 * (score / availableGlues).pow(3.0)
// pow(score.toDouble().absoluteValue, 3.0 * tanh(paperWidth / 650.0))
private fun isVowel(c: CodePoint) = vowels.contains(c)
@@ -722,7 +741,7 @@ class MovableType(
val hyphenateCandidates = ArrayList<Int>() // stores indices
val splitCandidates = ArrayList<Int>() // stores indices
var i = 3
while (i < this.size - 3) {
while (i < this.size - 4) {
val thisChar = this[i]
val prevChar = this[i-1]
if (isVowel(prevChar) && !isVowel(thisChar) || !isVowel(prevChar) && isVowel(thisChar)) {
@@ -914,16 +933,7 @@ class MovableType(
val out = CodepointSequence()
val input = this.filter { it.block.text.isNotGlue() }
// println("Blocks:")
// input.forEach {
// println("x ${it.posX}\te ${it.getEndPos()}\tw ${it.block.width}; ${it.block.text.toReadable()}")
// }
if (input.isEmpty()) {
// println("FreezeSlugs: ${out.toReadable()}")
return out
}
if (input.isEmpty()) return out
// process line indents
if (input.first().posX > 0)
@@ -939,8 +949,6 @@ class MovableType(
out.addAll(it.block.text)
}
// println("FreezeSlugs: ${out.toReadable()}\n")
return out
}
@@ -952,6 +960,25 @@ class MovableType(
private fun createGlyphLayout(font: TerrarumSansBitmap, str: CodepointSequence): NoTexGlyphLayout {
return NoTexGlyphLayout(str, font.getWidthNormalised(str).div(font.scale))
}
private fun List<Block>.getGlueSizeSum(font: TerrarumSansBitmap): Int {
var out = 0
val input = this.filter { it.block.text.isNotGlue() }
if (input.isEmpty()) return 0
// process blocks
input.forEachIndexed { index, it ->
val posX = it.posX + 1 - font.interchar * 2
val prevEndPos = if (index == 0) 0 else input[index-1].getEndPos()
if (index > 0 && posX != prevEndPos) {
out += posX - prevEndPos
}
}
return out
}
} // end of companion object
}

4
src/net/torvald/terrarumsansbitmap/gdx/TerrarumSansBitmap.kt
View File

@@ -759,6 +759,10 @@ class TerrarumSansBitmap(
for (i in 0 until 256) {
glyphProps[0xF800 + i] = GlyphProps(0)
}
for (i in 0xFFF70..0xFFF9F) {
glyphProps[i] = GlyphProps(0)
}
}
fun getWidth(text: String) = getWidthNormalised(text.toCodePoints())