Initial refactoring of TextInput

src/main/scala/ocelot/desktop/graphics/Font.scala

@@ -1,7 +1,7 @@
-package ocelot.desktop.util
+package ocelot.desktop.graphics
 
 import ocelot.desktop.geometry.Rect2D
-import ocelot.desktop.graphics.Texture
+import ocelot.desktop.util.{Logging, Resource}
 import org.lwjgl.opengl.GL11
 import totoro.ocelot.brain.util.FontUtils
 
@@ -15,8 +15,8 @@ import scala.io.{Codec, Source}
 class Font(val name: String, val fontSize: Int) extends Resource with Logging {
   val AtlasWidth = 4096
   val AtlasHeight = 4096
-  var glyphCount = 0
-  var outOfRangeGlyphCount = 0
+  private var glyphCount = 0
+  private var outOfRangeGlyphCount = 0
 
   private val atlas: BufferedImage = {
     val icmArr = Array(0.toByte, 0xff.toByte)
@@ -134,3 +134,14 @@ class Font(val name: String, val fontSize: Int) extends Resource with Logging {
     texture.freeResource()
   }
 }
+
+object Font extends Resource {
+  val NormalFont = new Font("unscii-16", 16)
+  val SmallFont = new Font("unscii-8", 8)
+
+  override def freeResource(): Unit = {
+    super.freeResource()
+    NormalFont.freeResource()
+    SmallFont.freeResource()
+  }
+}

src/main/scala/ocelot/desktop/graphics/Graphics.scala

@@ -6,7 +6,7 @@ import ocelot.desktop.graphics.Texture.MinFilteringMode
 import ocelot.desktop.graphics.mesh.{Mesh2D, MeshInstance2D, MeshVertex2D}
 import ocelot.desktop.graphics.render.InstanceRenderer
 import ocelot.desktop.ui.UiHandler
-import ocelot.desktop.util.{Font, Logging, Resource, Spritesheet}
+import ocelot.desktop.util.{Logging, Resource, Spritesheet}
 import org.lwjgl.BufferUtils
 import org.lwjgl.opengl.{ARBFramebufferObject, GL11, GL21, GL30}
 
@@ -25,9 +25,7 @@ class Graphics(private var width: Int, private var height: Int, private var scal
   private val shaderProgram = new ShaderProgram("general")
   private val renderer = new InstanceRenderer[MeshVertex2D, MeshInstance2D](Mesh2D.quad, MeshInstance2D, shaderProgram)
 
-  private[graphics] val normalFont = new Font("unscii-16", 16)
-  private val smallFont = new Font("unscii-8", 8)
-  private var _font: Font = normalFont
+  private var _font: Font = Font.NormalFont
   private var oldFont: Font = _font
 
   private val stack = mutable.Stack[GraphicsState](GraphicsState())
@@ -87,8 +85,6 @@ class Graphics(private var width: Int, private var height: Int, private var scal
 
     offscreenTexture.freeResource()
     Spritesheet.freeResource()
-    smallFont.freeResource()
-    normalFont.freeResource()
     renderer.freeResource()
     shaderProgram.freeResource()
     screenShaderProgram.freeResource()
@@ -97,15 +93,15 @@ class Graphics(private var width: Int, private var height: Int, private var scal
   def font: Font = _font
 
   def setNormalFont(): Unit = {
-    if (_font == normalFont) return
+    if (_font == Font.NormalFont) return
     flush()
-    _font = normalFont
+    _font = Font.NormalFont
   }
 
   def setSmallFont(): Unit = {
-    if (_font == smallFont) return
+    if (_font == Font.SmallFont) return
     flush()
-    _font = smallFont
+    _font = Font.SmallFont
   }
 
   def save(): Unit = {

src/main/scala/ocelot/desktop/graphics/ScreenViewport.scala

@@ -4,7 +4,7 @@ import ocelot.desktop.color.{Color, RGBAColorNorm}
 import ocelot.desktop.geometry.Transform2D
 import ocelot.desktop.graphics.mesh.{Mesh2D, MeshInstance2D, MeshVertex2D}
 import ocelot.desktop.graphics.render.InstanceRenderer
-import ocelot.desktop.util.{Font, Resource, Spritesheet}
+import ocelot.desktop.util.{Resource, Spritesheet}
 import org.lwjgl.opengl.{ARBFramebufferObject, GL11, GL21, GL30}
 
 import java.nio.ByteBuffer
@@ -19,7 +19,7 @@ class ScreenViewport(graphics: Graphics, private var _width: Int, private var _h
   private val shaderProgram = graphics.screenShaderProgram
   private val renderer = new InstanceRenderer[MeshVertex2D, MeshInstance2D](Mesh2D.quad, MeshInstance2D, shaderProgram)
 
-  private val _font = graphics.normalFont
+  private val _font = Font.NormalFont
   private val spriteRect = Spritesheet.sprites("Empty")
 
   private val emptySpriteTrans =

src/main/scala/ocelot/desktop/ui/UiHandler.scala

@@ -3,7 +3,7 @@ package ocelot.desktop.ui
 import buildinfo.BuildInfo
 import ocelot.desktop.audio.{Audio, SoundBuffers, SoundSource}
 import ocelot.desktop.geometry.{Rect2D, Size2D, Vector2D}
-import ocelot.desktop.graphics.Graphics
+import ocelot.desktop.graphics.{Font, Graphics}
 import ocelot.desktop.ui.event.handlers.HoverHandler
 import ocelot.desktop.ui.event.sources.{BrainEvents, KeyEvents, MouseEvents, ScrollEvents}
 import ocelot.desktop.ui.event.{Capturing, CapturingEvent, Dispatchable, HoverEvent, MouseEvent}
@@ -418,6 +418,7 @@ object UiHandler extends Logging {
     KeyEvents.destroy()
     MouseEvents.destroy()
     graphics.freeResource()
+    Font.freeResource()
     Audio.removeAllSources()
     SoundBuffers.freeResource()
     Display.destroy()

src/main/scala/ocelot/desktop/ui/widget/Button.scala

@@ -16,8 +16,8 @@ class Button(tooltip: Option[Tooltip] = None) extends Widget with MouseHandler w
   def this(tooltip: Tooltip) = this(Some(tooltip))
 
   protected def colorScheme: ColorScheme = ColorScheme.General
-  override protected val hoverAnimationColorDefault: Color = colorScheme("ButtonBackground")
-  override protected val hoverAnimationColorActive: Color = colorScheme("ButtonBackgroundActive")
+  override protected val HoverAnimationColorDefault: Color = colorScheme("ButtonBackground")
+  override protected val HoverAnimationColorActive: Color = colorScheme("ButtonBackgroundActive")
 
   def text: String = ""
 

src/main/scala/ocelot/desktop/ui/widget/ChangeSimulationSpeedDialog.scala

@@ -45,7 +45,7 @@ class ChangeSimulationSpeedDialog extends ModalDialog {
 
         override def onInput(text: String): Unit = {
           tickInterval = parseInput(text).map { interval =>
-            inputTPS.setInput(formatTPS(interval))
+            inputTPS.text = formatTPS(interval)
             interval
           }
         }
@@ -66,7 +66,7 @@ class ChangeSimulationSpeedDialog extends ModalDialog {
 
         override def onInput(text: String): Unit = {
           tickInterval = parseInput(text).map { interval =>
-            inputMSPT.setInput(formatMSPT(interval))
+            inputMSPT.text = formatMSPT(interval)
             interval
           }
         }

src/main/scala/ocelot/desktop/ui/widget/Checkbox.scala

@@ -12,8 +12,8 @@ import ocelot.desktop.util.DrawUtils
 class Checkbox(val label: String, val initialValue: Boolean = false, val isSmall: Boolean = false)
     extends Widget with MouseHandler with HoverAnimation {
 
-  override protected val hoverAnimationColorDefault: Color = ColorScheme("CheckboxBackground")
-  override protected val hoverAnimationColorActive: Color = ColorScheme("CheckboxBackgroundActive")
+  override protected val HoverAnimationColorDefault: Color = ColorScheme("CheckboxBackground")
+  override protected val HoverAnimationColorActive: Color = ColorScheme("CheckboxBackgroundActive")
 
   private var _checked: Boolean = initialValue
 

src/main/scala/ocelot/desktop/ui/widget/Slider.scala

@@ -14,8 +14,8 @@ import ocelot.desktop.util.DrawUtils
 class Slider(var value: Float, val text: String, val snapPoints: Int = 0)
     extends Widget with MouseHandler with HoverAnimation {
 
-  override protected val hoverAnimationColorDefault: Color = ColorScheme("SliderBackground")
-  override protected val hoverAnimationColorActive: Color = ColorScheme("SliderBackgroundActive")
+  override protected val HoverAnimationColorDefault: Color = ColorScheme("SliderBackground")
+  override protected val HoverAnimationColorActive: Color = ColorScheme("SliderBackgroundActive")
 
   def onValueChanged(value: Float): Unit = {}
   def onValueFinal(value: Float): Unit = {}

src/main/scala/ocelot/desktop/ui/widget/TextInput.scala

@@ -3,7 +3,7 @@ package ocelot.desktop.ui.widget
 import ocelot.desktop.ColorScheme
 import ocelot.desktop.color.Color
 import ocelot.desktop.geometry.Size2D
-import ocelot.desktop.graphics.Graphics
+import ocelot.desktop.graphics.{Font, Graphics}
 import ocelot.desktop.ui.UiHandler
 import ocelot.desktop.ui.event.handlers.MouseHandler
 import ocelot.desktop.ui.event.sources.KeyEvents
@@ -13,12 +13,33 @@ import ocelot.desktop.util.DrawUtils
 import ocelot.desktop.util.animation.ColorAnimation
 import org.lwjgl.input.Keyboard
 
-import scala.collection.mutable.ArrayBuffer
 
 class TextInput(val initialText: String = "") extends Widget with MouseHandler with HoverAnimation {
-  override protected val hoverAnimationColorDefault: Color = ColorScheme("TextInputBackground")
-  override protected val hoverAnimationColorActive: Color = ColorScheme("TextInputBackgroundActive")
+  private val CursorBlinkTime = 2f
+  private val PlaceholderForegroundColor: Color = ColorScheme("TextInputForegroundDisabled")
+  override protected val HoverAnimationColorDefault: Color = ColorScheme("TextInputBackground")
+  override protected val HoverAnimationColorActive: Color = ColorScheme("TextInputBackgroundActive")
 
+  // text state
+  private var chars = initialText.toCharArray
+  private var textChanged = false
+
+  // cursor state
+  private var cursorPos = 0
+  private var cursorOffset = 0f
+
+  // view state
+  private var isFocused = false
+  private var scroll = 0f
+  private var blinkTimer = 0f
+  private var prevEnabled = enabled
+
+  private val foregroundAnimation = new ColorAnimation(targetForegroundColor, 7f)
+  private val borderAnimation = new ColorAnimation(targetBorderColor, 7f)
+
+
+  // public API
+  // -------------------------------------------------------------------------------------------------------------------
   def onInput(text: String): Unit = {}
 
   def onConfirm(): Unit = {
@@ -28,125 +49,24 @@ class TextInput(val initialText: String = "") extends Widget with MouseHandler w
   def validator(text: String): Boolean = true
   final def isInputValid: Boolean = validator(text)
 
-  var isFocused = false
-
   def text: String = chars.mkString
-  def text_=(value: String): Unit = chars = value.toCharArray
-
-  protected var placeholder: Array[Char] = "".toCharArray
-  def placeholder_=(value: String): Unit = placeholder = value.toCharArray
-
-  private var cursorPos = 0
-  private var cursorOffset = 0f
-  private var scroll = 0f
-  private val CursorBlinkTime = 2f
-  private var blinkTimer = 0f
-  private var chars = initialText.toCharArray
-  private var textWidth = 0
-  private var textChanged = false
-  private val events = ArrayBuffer[TextEvent]()
-
-  override protected def receiveClickEvents: Boolean = true
-
-  // TODO: implement text selection
-  // override protected def receiveDragEvents: Boolean = true
-
-  override protected def allowClickReleaseOutsideThreshold: Boolean = false
-
-  override def receiveAllMouseEvents = true
-
-  private var prevEnabled = enabled
-
-  eventHandlers += {
-    case MouseEvent(MouseEvent.State.Released, MouseEvent.Button.Left) =>
-      if (isFocused && !clippedBounds.contains(UiHandler.mousePosition)) {
-        unfocus()
-      }
-
-    case ClickEvent(MouseEvent.Button.Left, pos) if enabled =>
-      focus()
-      events += new CursorMoveTo(pos.x)
-
-    case event @ KeyEvent(KeyEvent.State.Press | KeyEvent.State.Repeat, Keyboard.KEY_LEFT, _) if isFocused =>
-      events += new CursorMoveLeft
-      event.consume()
-
-    case event @ KeyEvent(KeyEvent.State.Press | KeyEvent.State.Repeat, Keyboard.KEY_RIGHT, _) if isFocused =>
-      events += new CursorMoveRight
-      event.consume()
-
-    case event @ KeyEvent(KeyEvent.State.Press, Keyboard.KEY_HOME, _) if isFocused =>
-      events += new CursorMoveStart
-      event.consume()
-
-    case event @ KeyEvent(KeyEvent.State.Press, Keyboard.KEY_END, _) if isFocused =>
-      events += new CursorMoveEnd
-      event.consume()
-
-    case event @ KeyEvent(KeyEvent.State.Press | KeyEvent.State.Repeat, Keyboard.KEY_BACK, _) if isFocused =>
-      events += new EraseCharBack
-      event.consume()
-
-    case event @ KeyEvent(KeyEvent.State.Press | KeyEvent.State.Repeat, Keyboard.KEY_DELETE, _) if isFocused =>
-      events += new EraseCharFront
-      event.consume()
-
-    case event @ KeyEvent(KeyEvent.State.Press | KeyEvent.State.Repeat, Keyboard.KEY_INSERT, _) if isFocused =>
-      // TODO: insert the whole clipboard string at once instead of going char-by-char.
-      for (char <- UiHandler.clipboard.toCharArray) {
-        events += new WriteChar(char)
-      }
-
-      event.consume()
-
-    case event @ KeyEvent(KeyEvent.State.Press | KeyEvent.State.Repeat, Keyboard.KEY_V, _)
-        if isFocused
-          && KeyEvents.isControlDown =>
-
-      // TODO: insert the whole clipboard string at once instead of going char-by-char.
-      for (char <- UiHandler.clipboard.toCharArray) {
-        events += new WriteChar(char)
-      }
-
-      event.consume()
-
-    case event @ KeyEvent(KeyEvent.State.Press, Keyboard.KEY_RETURN, _) if isFocused =>
-      onConfirm()
-      event.consume()
-
-    case event @ KeyEvent(KeyEvent.State.Press | KeyEvent.State.Repeat, _, char) if isFocused && !char.isControl =>
-      events += new WriteChar(char)
-      event.consume()
-  }
-
-  def setInput(text: String): Unit = {
-    this.chars = text.toCharArray
+  def text_=(value: String): Unit = {
+    chars = value.toCharArray
     cursorPos = 0
     cursorOffset = 0
-    textWidth = 0
     textChanged = true
   }
 
-  override def minimumSize: Size2D = Size2D(200, 24)
-  override def maximumSize: Size2D = Size2D(Float.PositiveInfinity, 24)
-
-  private val foregroundAnimation = new ColorAnimation(targetForegroundColor, 7f)
-  private val borderAnimation = new ColorAnimation(targetBorderColor, 7f)
-
-  private def updateAnimationTargets(): Unit = {
-    foregroundAnimation.goto(targetForegroundColor)
-    borderAnimation.goto(targetBorderColor)
-  }
+  protected var placeholder: Array[Char] = "".toCharArray
+  def placeholder_=(value: String): Unit = placeholder = value.toCharArray
 
   def focus(): Unit = {
     if (!isFocused) {
       if (enabled) {
         isFocused = true
       }
-
       updateAnimationTargets()
     }
-
     blinkTimer = 0
   }
 
@@ -157,6 +77,181 @@ class TextInput(val initialText: String = "") extends Widget with MouseHandler w
     }
   }
 
+
+  // widget management
+  // -------------------------------------------------------------------------------------------------------------------
+  override def minimumSize: Size2D = Size2D(200, 24)
+  override def maximumSize: Size2D = Size2D(Float.PositiveInfinity, 24)
+
+  override protected def receiveClickEvents: Boolean = true
+  override protected def receiveDragEvents: Boolean = true
+  override protected def allowClickReleaseOutsideThreshold: Boolean = false
+  override def receiveAllMouseEvents = true
+
+  protected def font(): Font = Font.NormalFont
+
+  private def charWidth(c: Char): Int = font().charWidth(c)
+
+  private def charsWidth(chars: Array[Char]): Int = charsWidth(chars, 0, chars.length - 1)
+
+  private def charsWidth(chars: Array[Char], first: Int, last: Int): Int = {
+    var width = 0
+    for (index <- first to last) {
+      width += font().charWidth(chars(index))
+    }
+    width
+  }
+
+  eventHandlers += {
+    case MouseEvent(MouseEvent.State.Released, MouseEvent.Button.Left) =>
+      if (isFocused && !clippedBounds.contains(UiHandler.mousePosition)) {
+        unfocus()
+      }
+
+    case ClickEvent(MouseEvent.Button.Left, mouse) if enabled =>
+      focus()
+      val absoluteX = mouse.x - bounds.x + scroll - 4
+      var width = 0
+      var pos = 0
+      while (width < absoluteX && pos < chars.length) {
+        width += charWidth(chars(pos))
+        if (width < absoluteX) pos += 1
+      }
+      cursorPos = chars.length.min(pos).max(0)
+      cursorOffset = if (cursorPos > 0) charsWidth(chars, 0, (cursorPos - 1).max(0)) else 0
+      blinkTimer = 0
+      adjustScroll()
+
+    case event @ KeyEvent(KeyEvent.State.Press | KeyEvent.State.Repeat, Keyboard.KEY_LEFT, _) if isFocused =>
+      if (cursorPos != 0) {
+        cursorOffset -= charWidth(chars(cursorPos - 1))
+        cursorPos -= 1
+        blinkTimer = 0
+        adjustScroll()
+      }
+      event.consume()
+
+    case event @ KeyEvent(KeyEvent.State.Press | KeyEvent.State.Repeat, Keyboard.KEY_RIGHT, _) if isFocused =>
+      if (cursorPos < chars.length) {
+        cursorOffset += charWidth(chars(cursorPos))
+        cursorPos += 1
+        blinkTimer = 0
+        adjustScroll()
+      }
+      event.consume()
+
+    case event @ KeyEvent(KeyEvent.State.Press, Keyboard.KEY_HOME, _) if isFocused =>
+      cursorPos = 0
+      cursorOffset = 0
+      blinkTimer = 0
+      scroll = 0
+      event.consume()
+
+    case event @ KeyEvent(KeyEvent.State.Press, Keyboard.KEY_END, _) if isFocused =>
+      val textWidth = charsWidth(chars)
+      cursorPos = chars.length
+      cursorOffset = textWidth
+      blinkTimer = 0
+      scroll = (textWidth - size.width + 16).max(0)
+      event.consume()
+
+    case event @ KeyEvent(KeyEvent.State.Press | KeyEvent.State.Repeat, Keyboard.KEY_BACK, _) if isFocused =>
+      val (lhs, rhs) = chars.splitAt(cursorPos)
+      if (!lhs.isEmpty) {
+        val cw = charWidth(lhs.last)
+        chars = lhs.take(lhs.length - 1) ++ rhs
+        textChanged = true
+        cursorOffset -= cw
+        cursorPos -= 1
+        blinkTimer = 0
+        scroll = (scroll - cw).max(0)
+      }
+      event.consume()
+
+    case event @ KeyEvent(KeyEvent.State.Press | KeyEvent.State.Repeat, Keyboard.KEY_DELETE, _) if isFocused =>
+      val (lhs, rhs) = chars.splitAt(cursorPos)
+      if (!rhs.isEmpty) {
+        val cw = charWidth(rhs.head)
+        chars = lhs ++ rhs.drop(1)
+        textChanged = true
+        blinkTimer = 0
+        if (rhs.drop(1).map(charWidth).sum < size.width - 16) {
+          scroll = (scroll - cw).max(0)
+        }
+      }
+      event.consume()
+
+    case event @ KeyEvent(KeyEvent.State.Press | KeyEvent.State.Repeat, Keyboard.KEY_INSERT, _) if isFocused =>
+      // TODO: insert the whole clipboard string at once instead of going char-by-char.
+      for (char <- UiHandler.clipboard.toCharArray) {
+        writeChar(char)
+      }
+      event.consume()
+
+    case event @ KeyEvent(KeyEvent.State.Press | KeyEvent.State.Repeat, Keyboard.KEY_V, _)
+        if isFocused && KeyEvents.isControlDown =>
+      // TODO: insert the whole clipboard string at once instead of going char-by-char.
+      for (char <- UiHandler.clipboard.toCharArray) {
+        writeChar(char)
+      }
+      event.consume()
+
+    case event @ KeyEvent(KeyEvent.State.Press, Keyboard.KEY_RETURN, _) if isFocused =>
+      onConfirm()
+      event.consume()
+
+    case event @ KeyEvent(KeyEvent.State.Press | KeyEvent.State.Repeat, _, char) if isFocused && !char.isControl =>
+      writeChar(char)
+      event.consume()
+  }
+
+
+  private def writeChar(char: Char): Unit = {
+    val (lhs, rhs) = chars.splitAt(cursorPos)
+    chars = lhs ++ Array(char) ++ rhs
+    textChanged = true
+    cursorOffset += charWidth(chars(cursorPos))
+    cursorPos += 1
+    blinkTimer = 0
+  }
+
+  private def adjustScroll(): Unit = {
+    if (cursorOffset < scroll)
+      scroll = cursorOffset
+    if (cursorOffset - scroll > size.width - 16)
+      scroll = cursorOffset - size.width + 16
+  }
+
+  override def update(): Unit = {
+    super.update()
+
+    if (textChanged) {
+      onInput(text)
+      updateAnimationTargets()
+      textChanged = false
+    }
+
+    val nextEnabled = enabled
+    if (nextEnabled != prevEnabled) {
+      updateAnimationTargets()
+      prevEnabled = nextEnabled
+    }
+
+    if (isFocused && !enabled) {
+      unfocus()
+    }
+
+    foregroundAnimation.update()
+    borderAnimation.update()
+    blinkTimer = (blinkTimer + UiHandler.dt) % CursorBlinkTime
+  }
+
+
+  private def updateAnimationTargets(): Unit = {
+    foregroundAnimation.goto(targetForegroundColor)
+    borderAnimation.goto(targetBorderColor)
+  }
+
   private def targetBorderColor: Color = ColorScheme(
     if (validator(chars.mkString)) {
       if (isFocused) "TextInputBorderFocused"
@@ -174,29 +269,14 @@ class TextInput(val initialText: String = "") extends Widget with MouseHandler w
     else "TextInputForeground"
   )
 
-  private val placeholderForegroundColor: Color = ColorScheme("TextInputForegroundDisabled")
-
   override def draw(g: Graphics): Unit = {
-    if (textWidth == 0f && chars.nonEmpty)
-      textWidth = chars.map(g.font.charWidth(_)).sum
-
-    textChanged = false
-    for (event <- events) event.handle(g)
-    events.clear()
-
-    if (textChanged) {
-      val str = chars.mkString
-      onInput(str)
-      updateAnimationTargets()
-    }
-
     g.rect(bounds, hoverAnimation.color)
     DrawUtils.ring(g, position.x, position.y, size.width, size.height, thickness = 2, borderAnimation.color)
 
     g.setScissor(position.x + 4, position.y, size.width - 8f, size.height)
 
     g.background = Color.Transparent
-    g.foreground = if (chars.nonEmpty || isFocused) foregroundAnimation.color else placeholderForegroundColor
+    g.foreground = if (chars.nonEmpty || isFocused) foregroundAnimation.color else PlaceholderForegroundColor
 
     var charOffset = 0
     val charsToDisplay = if (chars.nonEmpty || isFocused) chars else placeholder
@@ -209,149 +289,4 @@ class TextInput(val initialText: String = "") extends Widget with MouseHandler w
       g.rect(position.x + 7 + cursorOffset - scroll, position.y + 4, 2, 16, borderAnimation.color)
     }
   }
-
-  override def update(): Unit = {
-    super.update()
-
-    val nextEnabled = enabled
-
-    if (nextEnabled != prevEnabled) {
-      updateAnimationTargets()
-      prevEnabled = nextEnabled
-    }
-
-    if (isFocused && !enabled) {
-      unfocus()
-    }
-
-    foregroundAnimation.update()
-    borderAnimation.update()
-    blinkTimer = (blinkTimer + UiHandler.dt) % CursorBlinkTime
-  }
-
-  private def charWidth(g: Graphics, c: Char): Int = g.font.charWidth(c)
-
-  // noinspection SameParameterValue
-  private def charsWidth(g: Graphics, chars: Array[Char], first: Int, last: Int): Int = {
-    var width = 0
-    for (index <- first to last) {
-      width += g.font.charWidth(chars(index))
-    }
-    width
-  }
-
-  private def adjustScroll(): Unit = {
-    if (cursorOffset < scroll)
-      scroll = cursorOffset
-    if (cursorOffset - scroll > size.width - 16)
-      scroll = cursorOffset - size.width + 16
-  }
-
-  private abstract class TextEvent {
-    def handle(g: Graphics): Unit
-  }
-
-  // TODO: refactor this mess. have actions only move the cursor position explicitly.
-  //       then calculate the cursor offset (incl. the scroll offset) based on that automatically
-  //       rather than incrementally in the actions.
-  private class CursorMoveLeft extends TextEvent {
-    override def handle(g: Graphics): Unit = {
-      if (cursorPos == 0) return
-
-      cursorOffset -= charWidth(g, chars(cursorPos - 1))
-      cursorPos -= 1
-      blinkTimer = 0
-
-      adjustScroll()
-    }
-  }
-
-  private class CursorMoveRight extends TextEvent {
-    override def handle(g: Graphics): Unit = {
-      if (cursorPos >= chars.length) return
-
-      cursorOffset += charWidth(g, chars(cursorPos))
-      cursorPos += 1
-      blinkTimer = 0
-
-      adjustScroll()
-    }
-  }
-
-  private class CursorMoveStart extends TextEvent {
-    override def handle(g: Graphics): Unit = {
-      cursorPos = 0
-      cursorOffset = 0
-      blinkTimer = 0
-      scroll = 0
-    }
-  }
-
-  private class CursorMoveEnd extends TextEvent {
-    override def handle(g: Graphics): Unit = {
-      cursorPos = chars.length
-      cursorOffset = textWidth
-      blinkTimer = 0
-      scroll = (textWidth - size.width + 16).max(0)
-    }
-  }
-
-  private class CursorMoveTo(mouseX: Float) extends TextEvent {
-    override def handle(g: Graphics): Unit = {
-      val absoluteX = mouseX - bounds.x + scroll - 4
-      var width = 0
-      var pos = 0
-      while (width < absoluteX && pos < chars.length) {
-        width += g.font.charWidth(chars(pos))
-        if (width < absoluteX) pos += 1
-      }
-
-      cursorPos = chars.length.min(pos).max(0)
-      cursorOffset = if (cursorPos > 0) charsWidth(g, chars, 0, (cursorPos - 1).max(0)) else 0
-      blinkTimer = 0
-      adjustScroll()
-    }
-  }
-
-  private class EraseCharBack extends TextEvent {
-    override def handle(g: Graphics): Unit = {
-      val (lhs, rhs) = chars.splitAt(cursorPos)
-      if (lhs.isEmpty) return
-
-      val cw = charWidth(g, lhs.last)
-      chars = lhs.take(lhs.length - 1) ++ rhs
-      textChanged = true
-      textWidth -= cw
-      cursorOffset -= cw
-      cursorPos -= 1
-      blinkTimer = 0
-      scroll = (scroll - cw).max(0)
-    }
-  }
-
-  private class EraseCharFront extends TextEvent {
-    override def handle(g: Graphics): Unit = {
-      val (lhs, rhs) = chars.splitAt(cursorPos)
-      if (rhs.isEmpty) return
-
-      val cw = charWidth(g, rhs.head)
-      chars = lhs ++ rhs.drop(1)
-      textChanged = true
-      textWidth -= cw
-      blinkTimer = 0
-
-      if (rhs.drop(1).map(charWidth(g, _)).sum < size.width - 16)
-        scroll = (scroll - cw).max(0)
-    }
-  }
-
-  private class WriteChar(char: Char) extends TextEvent {
-    override def handle(g: Graphics): Unit = {
-      val (lhs, rhs) = chars.splitAt(cursorPos)
-      chars = lhs ++ Array(char) ++ rhs
-      textChanged = true
-      textWidth += charWidth(g, char)
-      (new CursorMoveRight).handle(g)
-    }
-  }
 }

src/main/scala/ocelot/desktop/ui/widget/settings/SystemSettingsTab.scala

@@ -158,7 +158,7 @@ class SystemSettingsTab extends SettingsTab with Logging {
 
   private def setConfigPath(path: String): Unit = {
     Settings.get.brainCustomConfigPath = Some(path)
-    textInput.setInput(path)
+    textInput.text = path
     restartWarning.isVisible = true
   }
 

src/main/scala/ocelot/desktop/ui/widget/statusbar/StatusBar.scala

@@ -157,8 +157,8 @@ class StatusBar extends Widget {
 
     override def receiveMouseEvents: Boolean = true
 
-    override protected val hoverAnimationColorActive: Color = ColorScheme("StatusBarActive")
-    override protected val hoverAnimationColorDefault: Color = hoverAnimationColorActive.toRGBANorm.withAlpha(0)
+    override protected val HoverAnimationColorActive: Color = ColorScheme("StatusBarActive")
+    override protected val HoverAnimationColorDefault: Color = HoverAnimationColorActive.toRGBANorm.withAlpha(0)
 
     override def draw(g: Graphics): Unit = {
       g.rect(bounds, hoverAnimation.color)

src/main/scala/ocelot/desktop/ui/widget/traits/HoverAnimation.scala

@@ -13,23 +13,23 @@ import ocelot.desktop.util.animation.ColorAnimation
   */
 trait HoverAnimation extends Widget with EventAware with HoverHandler with Updatable {
   //noinspection ScalaWeakerAccess
-  protected val hoverAnimationSpeedEnter: Float = AnimationSpeedHoverEnter
+  protected val HoverAnimationSpeedEnter: Float = AnimationSpeedHoverEnter
   //noinspection ScalaWeakerAccess
-  protected val hoverAnimationSpeedLeave: Float = AnimationSpeedHoverLeave
-  protected val hoverAnimationColorDefault: Color = ColorScheme("ButtonBackground")
-  protected val hoverAnimationColorActive: Color = ColorScheme("ButtonBackgroundActive")
+  protected val HoverAnimationSpeedLeave: Float = AnimationSpeedHoverLeave
+  protected val HoverAnimationColorDefault: Color = ColorScheme("ButtonBackground")
+  protected val HoverAnimationColorActive: Color = ColorScheme("ButtonBackgroundActive")
 
   protected lazy val hoverAnimation: ColorAnimation =
-    new ColorAnimation(hoverAnimationColorDefault, hoverAnimationSpeedEnter)
+    new ColorAnimation(HoverAnimationColorDefault, HoverAnimationSpeedEnter)
 
   eventHandlers += {
     case Capturing(HoverEvent(HoverEvent.State.Enter)) =>
-      hoverAnimation.speed = hoverAnimationSpeedEnter
-      hoverAnimation.goto(hoverAnimationColorActive)
+      hoverAnimation.speed = HoverAnimationSpeedEnter
+      hoverAnimation.goto(HoverAnimationColorActive)
 
     case Capturing(HoverEvent(HoverEvent.State.Leave)) =>
-      hoverAnimation.speed = hoverAnimationSpeedLeave
-      hoverAnimation.goto(hoverAnimationColorDefault)
+      hoverAnimation.speed = HoverAnimationSpeedLeave
+      hoverAnimation.goto(HoverAnimationColorDefault)
   }
 
   override def update(): Unit = {

src/main/scala/ocelot/desktop/windows/OcelotInterfaceWindow.scala

@@ -24,7 +24,7 @@ class OcelotInterfaceWindow(storage: OcelotInterfaceLogStorage) extends PanelWin
     children :+= new TextInput() {
       override def onConfirm(): Unit = {
         pushLine(text)
-        setInput("")
+        text = ""
       }
     }