curioustorvald/Terrarum-sans-bitmap
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kerning for the pairs such as Pr,Fu,Fo,etc

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minjaesong
2021-11-20 18:36:45 +09:00
parent f43a81de3f
commit ab2669b555
3 changed files with 23 additions and 16 deletions
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27
src/net/torvald/terrarumsansbitmap/gdx/TerrarumSansBitmap.kt
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@@ -1359,12 +1359,13 @@ class TerrarumSansBitmap(
val maskL = glyphProps[prevChar]?.kerningMask
val maskR = glyphProps[thisChar]?.kerningMask
return if (glyphProps[prevChar]?.hasKernData == true && glyphProps[thisChar]?.hasKernData == true) {
val contraction = if (glyphProps[prevChar]?.isKernYtype == true || glyphProps[thisChar]?.isKernYtype == true) -1 else -2
kerningRules.forEachIndexed { index, it ->
if (it.first.matches(maskL!!) && it.second.matches(maskR!!)) {
println("Kerning rule match #${index+1}: ${prevChar.toChar()}${thisChar.toChar()}, Rule:${it.first} ${it.second}; Contraction: ${-contraction}")
val contraction = if (glyphProps[prevChar]?.isKernYtype == true || glyphProps[thisChar]?.isKernYtype == true) it.yy else it.bb
return contraction
println("Kerning rule match #${index+1}: ${prevChar.toChar()}${thisChar.toChar()}, Rule:${it.first} ${it.second}; Contraction: $contraction")
return -contraction
}
}
return 0
@@ -1951,6 +1952,8 @@ print(','.join(a))
override fun toString() = "C:${careBits.toString(2).padStart(16,'0')}-R:${ruleBits.toString(2).padStart(16,'0')}"
}
private data class Kern(val first: RuleMask, val second: RuleMask, val bb: Int = 2, val yy: Int = 1)
/**
* Legend: _ dont care
* @ must have a bit set
@@ -1967,15 +1970,17 @@ print(','.join(a))
* J·K
*/
private val kerningRules = arrayOf(
RuleMask("_@_`___`__") to RuleMask("`_________"),
RuleMask("_@_@___`__") to RuleMask("`___`_@___"),
RuleMask("___`_`____") to RuleMask("`___@_`___"),
RuleMask("___`_`____") to RuleMask("`_@___`___"),
Kern(RuleMask("_@_`___`__"),RuleMask("`_________")),
Kern(RuleMask("_@_@___`__"),RuleMask("`___`_@___")),
Kern(RuleMask("_@_@___`__"),RuleMask("`___@_____"),1,1),
Kern(RuleMask("___`_`____"),RuleMask("`___@_`___")),
Kern(RuleMask("___`_`____"),RuleMask("`_@___`___")),
RuleMask("_`________") to RuleMask("@_`___`___"),
RuleMask("_`___`_@__") to RuleMask("@_@___`___"),
RuleMask("_`___@_`__") to RuleMask("__`_`_____"),
RuleMask("_`_@___`__") to RuleMask("__`_`_____"),
Kern(RuleMask("_`________"),RuleMask("@_`___`___")),
Kern(RuleMask("_`___`_@__"),RuleMask("@_@___`___")),
Kern(RuleMask("_`___@____"),RuleMask("@_@___`___"),1,1),
Kern(RuleMask("_`___@_`__"),RuleMask("__`_`_____")),
Kern(RuleMask("_`_@___`__"),RuleMask("__`_`_____")),
)
// End of the Keming Machine