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implementation of the max string length

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minjaesong
2021-10-21 21:22:46 +09:00
parent a94586cdf7
commit d355c407d8
1 changed files with 54 additions and 12 deletions
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66
src/net/torvald/terrarum/ui/UIItemTextLineInput.kt
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@@ -14,6 +14,32 @@ import net.torvald.terrarumsansbitmap.gdx.CodepointSequence
import net.torvald.terrarumsansbitmap.gdx.TextureRegionPack
import kotlin.streams.toList
data class InputLenCap(val count: Int, val unit: CharLenUnit) {
enum class CharLenUnit {
UTF8_BYTES, UTF16_CHARS, CODEPOINTS
}
fun exceeds(codepoints: CodepointSequence, extra: List<Int> = CodepointSequence()): Boolean {
return when (unit) {
CharLenUnit.CODEPOINTS -> (codepoints.size + extra.size) > count
CharLenUnit.UTF16_CHARS -> {
var cnt = 0
listOf(codepoints,extra).forEach { it.forEach {
cnt += 1 + (it > 65535).toInt()
} }
cnt > count
}
CharLenUnit.UTF8_BYTES -> {
var cnt = 0
listOf(codepoints,extra).forEach { it.forEach {
cnt += if (it > 65535) 4 else if (it > 2047) 3 else if (it > 127) 2 else 1
} }
cnt > count
}
}
}
}
/**
* @param width width of the text input where the text gets drawn, not the entire item
* @param height height of the text input where the text gets drawn, not the entire item
@@ -26,7 +52,8 @@ class UIItemTextLineInput(
override val width: Int,
var placeholder: () -> String = { "" },
val enablePasteButton: Boolean = true,
val enableIMEButton: Boolean = false
val enableIMEButton: Boolean = false,
val maxLen: InputLenCap = InputLenCap(1000, InputLenCap.CharLenUnit.CODEPOINTS)
) : UIItem(parentUI, initialX, initialY) {
init {
@@ -44,7 +71,7 @@ class UIItemTextLineInput(
companion object {
val TEXTINPUT_COL_TEXT = Color.WHITE
val TEXTINPUT_COL_TEXT_HALF = Color.WHITE.cpy().mul(1f,1f,1f,0.5f)
val TEXTINPUT_COL_TEXT_NOMORE = Color(0xFF8888FF.toInt())
val TEXTINPUT_COL_TEXT_DISABLED = Toolkit.Theme.COL_DISABLED
val TEXTINPUT_COL_BACKGROUND = Toolkit.Theme.COL_CELL_FILL
const val CURSOR_BLINK_TIME = 1f / 3f
@@ -63,6 +90,7 @@ class UIItemTextLineInput(
var isActive = true
var cursorX = 0
var cursorDrawScroll = 0
var cursorDrawX = 0 // pixelwise point
var cursorBlinkCounter = 0f
var cursorOn = true
@@ -126,10 +154,13 @@ class UIItemTextLineInput(
// - 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("<"))) {
val codepoints = char.toCodePoints()
textbuf.addAll(cursorX, codepoints)
cursorX += codepoints.size
cursorDrawX = App.fontGame.getWidth(textbuf.subList(0, cursorX))
if (!maxLen.exceeds(textbuf, codepoints)) {
textbuf.addAll(cursorX, codepoints)
cursorX += codepoints.size
cursorDrawX = App.fontGame.getWidth(textbuf.subList(0, cursorX))
}
}
}
@@ -166,9 +197,18 @@ class UIItemTextLineInput(
private fun paste() {
val codepoints = Clipboard.fetch().substringBefore('\n').substringBefore('\t').toCodePoints()
textbuf.addAll(cursorX, codepoints)
val actuallyInserted = arrayListOf(0)
cursorX += codepoints.size
for (c in codepoints) {
if (maxLen.exceeds(textbuf, actuallyInserted)) break
actuallyInserted.add(c)
}
actuallyInserted.removeAt(0)
textbuf.addAll(cursorX, actuallyInserted)
cursorX += actuallyInserted.size
cursorDrawX = App.fontGame.getWidth(textbuf.subList(0, cursorX))
fboUpdateLatch = true
@@ -192,7 +232,7 @@ 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, -1f*cursorDrawScroll, 0f)
} }
}
@@ -245,11 +285,13 @@ class UIItemTextLineInput(
// draw text cursor
if (isActive && cursorOn) {
batch.color = TEXTINPUT_COL_TEXT_HALF
Toolkit.fillArea(batch, posX + cursorDrawX + 3, posY, 2, 24)
val baseCol = if (maxLen.exceeds(textbuf, listOf(32))) TEXTINPUT_COL_TEXT_NOMORE else TEXTINPUT_COL_TEXT
batch.color = TEXTINPUT_COL_TEXT
Toolkit.fillArea(batch, posX + cursorDrawX + 3, posY, 1, 23)
batch.color = baseCol.cpy().mul(0.5f,0.5f,0.5f,1f)
Toolkit.fillArea(batch, posX - cursorDrawScroll + cursorDrawX + 3, posY, 2, 24)
batch.color = baseCol
Toolkit.fillArea(batch, posX - cursorDrawScroll + cursorDrawX + 3, posY, 1, 23)
}
// draw icon