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Code Issues Packages Projects Releases Wiki Activity

properly supporting multibyte characters (i think...)

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minjaesong
2021-10-21 19:20:28 +09:00
parent 2bae7c59f5
commit a94586cdf7
2 changed files with 32 additions and 40 deletions
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lib/TerrarumSansBitmap.jar
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72
src/net/torvald/terrarum/ui/UIItemTextLineInput.kt
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@@ -10,7 +10,9 @@ import com.badlogic.gdx.graphics.glutils.FrameBuffer
import net.torvald.terrarum.*
import net.torvald.terrarum.gamecontroller.IngameController
import net.torvald.terrarum.utils.Clipboard
import net.torvald.terrarumsansbitmap.gdx.CodepointSequence
import net.torvald.terrarumsansbitmap.gdx.TextureRegionPack
import kotlin.streams.toList
/**
* @param width width of the text input where the text gets drawn, not the entire item
@@ -60,18 +62,16 @@ class UIItemTextLineInput(
var isActive = true
var cursorX = 0 // 1 per char (not codepoint)
var cursorCodepoint = 0
var codepointCount = 0
var cursorX = 0
var cursorDrawX = 0 // pixelwise point
var cursorBlinkCounter = 0f
var cursorOn = true
private val textbuf = StringBuilder()
private val textbuf = CodepointSequence()
private var fboUpdateLatch = true
private var currentPlaceholderText = placeholder() // the placeholder text may change every time you call it
private var currentPlaceholderText = ArrayList<Int>(placeholder().toCodePoints()) // the placeholder text may change every time you call it
private val btn1PosX = posX + width - 2*WIDTH_ONEBUTTON - 3
@@ -108,43 +108,33 @@ class UIItemTextLineInput(
copyToClipboard()
}
else if (cursorX > 0 && keycodes.contains(Input.Keys.BACKSPACE)) {
cursorCodepoint -= 1
val lastCp = textbuf.codePointAt(cursorCodepoint)
val charCount = Character.charCount(lastCp)
cursorX -= charCount
textbuf.delete(cursorX, cursorX + charCount)
cursorDrawX -= App.fontGame.getWidth(String(Character.toChars(lastCp))) - 1
codepointCount -= 1
cursorX -= 1
textbuf.removeAt(cursorX)
cursorDrawX = App.fontGame.getWidth(textbuf.subList(0, cursorX))
}
else if (cursorX > 0 && keycodes.contains(Input.Keys.LEFT)) {
cursorCodepoint -= 1
cursorX -= Character.charCount(textbuf.codePointAt(cursorCodepoint))
val lastCp = textbuf.codePointAt(cursorCodepoint)
cursorDrawX -= App.fontGame.getWidth(String(Character.toChars(lastCp))) - 1
cursorX -= 1
cursorDrawX = App.fontGame.getWidth(textbuf.subList(0, cursorX))
if (cursorDrawX < 0) cursorDrawX = 0
}
else if (cursorX < codepointCount && keycodes.contains(Input.Keys.RIGHT)) {
val lastCp = textbuf.codePointAt(cursorCodepoint)
cursorDrawX += App.fontGame.getWidth(String(Character.toChars(lastCp))) - 1
cursorX += Character.charCount(lastCp)
cursorCodepoint += 1
else if (cursorX < textbuf.size && keycodes.contains(Input.Keys.RIGHT)) {
cursorX += 1
cursorDrawX = App.fontGame.getWidth(textbuf.subList(0, cursorX))
}
// accept:
// - literal "<"
// - keysymbol that does not start with "<" (not always has length of 1 because UTF-16)
else if (char != null && char[0].code >= 32 && (char == "<" || !char.startsWith("<"))) {
textbuf.insert(cursorX, char)
val codepoints = char.toCodePoints()
textbuf.addAll(cursorX, codepoints)
cursorDrawX += App.fontGame.getWidth(char) - 1
cursorX += char.length
codepointCount += 1
cursorCodepoint += 1
cursorX += codepoints.size
cursorDrawX = App.fontGame.getWidth(textbuf.subList(0, cursorX))
}
}
if (cursorCodepoint == 0) {
currentPlaceholderText = placeholder()
if (textbuf.size == 0) {
currentPlaceholderText = ArrayList(placeholder().toCodePoints())
}
cursorBlinkCounter += delta
@@ -167,27 +157,29 @@ class UIItemTextLineInput(
if (!mouseDown) mouseLatched = false
}
private fun String.toCodePoints() = this.codePoints().toList()
private fun toggleIME() {
imeOn = !imeOn
}
private fun paste() {
val str = Clipboard.fetch().substringBefore('\n').substringBefore('\t')
val strCodepointLen = str.codePoints().count().toInt()
val codepoints = Clipboard.fetch().substringBefore('\n').substringBefore('\t').toCodePoints()
textbuf.insert(cursorX, str)
textbuf.addAll(cursorX, codepoints)
cursorDrawX += App.fontGame.getWidth(str) - 1
cursorX += str.length
codepointCount += strCodepointLen
cursorCodepoint += strCodepointLen
cursorX += codepoints.size
cursorDrawX = App.fontGame.getWidth(textbuf.subList(0, cursorX))
fboUpdateLatch = true
}
private fun copyToClipboard() {
Clipboard.copy(textbuf.toString())
Clipboard.copy(textbufToString())
}
private fun textbufToString(): String {
return ""
}
override fun render(batch: SpriteBatch, camera: Camera) {
@@ -200,7 +192,7 @@ class UIItemTextLineInput(
gdxClearAndSetBlend(0f, 0f, 0f, 0f)
it.color = Color.WHITE
App.fontGameFBO.draw(it, if (textbuf.isEmpty()) currentPlaceholderText else "$textbuf", 0f, 0f)
App.fontGameFBO.draw(it, if (textbuf.isEmpty()) currentPlaceholderText else textbuf, 0f, 0f)
} }
}
@@ -284,7 +276,7 @@ class UIItemTextLineInput(
super.render(batch, camera)
}
fun getText() = textbuf.toString()
fun getText() = textbufToString()
fun getTextOrPlaceholder() = if (textbuf.isEmpty()) currentPlaceholderText else getText()
override fun dispose() {