Convert Terminal screen to Cacao

plugin/rei/src/main/kotlin/net/shadowfacts/phycon/plugin/rei/PhyConPlugin.kt

@@ -19,8 +19,10 @@ object PhyConPlugin: REIPluginV0 {
 	override fun registerBounds(helper: DisplayHelper) {
 		BaseBoundsHandler.getInstance().registerExclusionZones(TerminalScreen::class.java) {
 			val screen = MinecraftClient.getInstance().currentScreen as TerminalScreen
+			val button = screen.terminalVC.sortMode
+			val rect = button.convert(button.bounds, to = null)
 			listOf(
-				Rectangle(screen.sortButtonX, screen.sortButtonY, 20, 20)
+				Rectangle(rect.left.toInt(), rect.top.toInt(), 20, 20)
 			)
 		}
 	}

src/main/kotlin/net/shadowfacts/cacao/CacaoHandledScreen.kt

@@ -1,5 +1,6 @@
 package net.shadowfacts.cacao
 
+import com.mojang.blaze3d.systems.RenderSystem
 import net.minecraft.client.gui.screen.ingame.HandledScreen
 import net.minecraft.client.util.math.MatrixStack
 import net.minecraft.entity.player.PlayerInventory
@@ -68,7 +69,6 @@ open class CacaoHandledScreen<Handler: ScreenHandler>(
 	}
 
 	override fun drawBackground(matrixStack: MatrixStack, delta: Float, mouseX: Int, mouseY: Int) {
-		renderBackground(matrixStack)
 	}
 
 	override fun drawForeground(matrixStack: MatrixStack, mouseX: Int, mouseY: Int) {
@@ -77,15 +77,28 @@ open class CacaoHandledScreen<Handler: ScreenHandler>(
 
 	override fun render(matrixStack: MatrixStack, mouseX: Int, mouseY: Int, delta: Float) {
 		val mouse = Point(mouseX, mouseY)
-		windows.forEachIndexed { index, it ->
+
+		RenderSystem.pushMatrix()
+		RenderSystem.translatef(0f, 0f, -350f)
+
+		for (i in windows.indices) {
+			val it = windows[i]
+
+			if (i == windows.size - 1) {
+				renderBackground(matrixStack)
+			}
+
 			if (it is ScreenHandlerWindow) {
-				if (index == windows.size - 1) {
+				if (i == windows.size - 1) {
 					super.render(matrixStack, mouseX, mouseY, delta)
 				} else {
 					// if the screen handler window is not the frontmost, we fake the mouse x/y to disable the slot mouseover effect
 					super.render(matrixStack, -1, -1, delta)
 				}
+
+				RenderSystem.popMatrix()
 			}
+
 			it.draw(matrixStack, mouse, delta)
 		}
 

src/main/kotlin/net/shadowfacts/cacao/view/NinePatchView.kt

@@ -6,6 +6,7 @@ import net.shadowfacts.cacao.geometry.Rect
 import net.shadowfacts.cacao.util.texture.NinePatchTexture
 import net.shadowfacts.cacao.util.RenderHelper
 import net.shadowfacts.cacao.util.properties.ResettableLazyProperty
+import kotlin.math.roundToInt
 
 /**
  * A helper class for drawing a [NinePatchTexture] in a view.
@@ -91,22 +92,22 @@ open class NinePatchView(val ninePatch: NinePatchTexture): View() {
 
 	private fun drawEdges(matrixStack: MatrixStack) {
 		// Horizontal
-		for (i in 0 until (topMiddle.width.toInt() / ninePatch.centerWidth)) {
+		for (i in 0 until (topMiddle.width.roundToInt() / ninePatch.centerWidth)) {
 			RenderHelper.draw(matrixStack, topMiddle.left + i * ninePatch.centerWidth, topMiddle.top, ninePatch.topMiddle.u, ninePatch.topMiddle.v, ninePatch.centerWidth.toDouble(), topMiddle.height, ninePatch.texture.width, ninePatch.texture.height)
 			RenderHelper.draw(matrixStack, bottomMiddle.left + i * ninePatch.centerWidth, bottomMiddle.top, ninePatch.bottomMiddle.u, ninePatch.bottomMiddle.v, ninePatch.centerWidth.toDouble(), bottomMiddle.height, ninePatch.texture.width, ninePatch.texture.height)
 		}
-		val remWidth = topMiddle.width.toInt() % ninePatch.centerWidth
+		val remWidth = topMiddle.width.roundToInt() % ninePatch.centerWidth
 		if (remWidth > 0) {
 			RenderHelper.draw(matrixStack, topMiddle.right - remWidth, topMiddle.top, ninePatch.topMiddle.u, ninePatch.topMiddle.v, remWidth.toDouble(), ninePatch.cornerHeight.toDouble(), ninePatch.texture.width, ninePatch.texture.height)
 			RenderHelper.draw(matrixStack, bottomMiddle.right - remWidth, bottomMiddle.top, ninePatch.bottomMiddle.u, ninePatch.bottomMiddle.v, remWidth.toDouble(), ninePatch.cornerHeight.toDouble(), ninePatch.texture.width, ninePatch.texture.height)
 		}
 
 		// Vertical
-		for (i in 0 until (leftMiddle.height.toInt() / ninePatch.centerHeight)) {
+		for (i in 0 until (leftMiddle.height.roundToInt() / ninePatch.centerHeight)) {
 			RenderHelper.draw(matrixStack, leftMiddle.left, leftMiddle.top + i * ninePatch.centerHeight, ninePatch.leftMiddle.u, ninePatch.leftMiddle.v, ninePatch.cornerWidth.toDouble(), ninePatch.centerHeight.toDouble(), ninePatch.texture.width, ninePatch.texture.height)
 			RenderHelper.draw(matrixStack, rightMiddle.left, rightMiddle.top + i * ninePatch.centerHeight, ninePatch.rightMiddle.u, ninePatch.rightMiddle.v, ninePatch.cornerWidth.toDouble(), ninePatch.centerHeight.toDouble(), ninePatch.texture.width, ninePatch.texture.height)
 		}
-		val remHeight = leftMiddle.height.toInt() % ninePatch.centerHeight
+		val remHeight = leftMiddle.height.roundToInt() % ninePatch.centerHeight
 		if (remHeight > 0) {
 			RenderHelper.draw(matrixStack, leftMiddle.left, leftMiddle.bottom - remHeight, ninePatch.leftMiddle.u, ninePatch.leftMiddle.v, ninePatch.cornerWidth.toDouble(), remHeight.toDouble(), ninePatch.texture.width, ninePatch.texture.height)
 			RenderHelper.draw(matrixStack, rightMiddle.left, rightMiddle.bottom - remHeight, ninePatch.rightMiddle.u, ninePatch.rightMiddle.v, ninePatch.cornerWidth.toDouble(), remHeight.toDouble(), ninePatch.texture.width, ninePatch.texture.height)
@@ -114,20 +115,20 @@ open class NinePatchView(val ninePatch: NinePatchTexture): View() {
 	}
 
 	private fun drawCenter(matrixStack: MatrixStack) {
-		for (i in 0 until (center.height.toInt() / ninePatch.centerHeight)) {
+		for (i in 0 until (center.height.roundToInt() / ninePatch.centerHeight)) {
 			drawCenterRow(matrixStack, center.top + i * ninePatch.centerHeight.toDouble(), ninePatch.centerHeight.toDouble())
 		}
-		val remHeight = center.height.toInt() % ninePatch.centerHeight
+		val remHeight = center.height.roundToInt() % ninePatch.centerHeight
 		if (remHeight > 0) {
 			drawCenterRow(matrixStack, center.bottom - remHeight, remHeight.toDouble())
 		}
 	}
 
 	private fun drawCenterRow(matrixStack: MatrixStack, y: Double, height: Double) {
-		for (i in 0 until (center.width.toInt() / ninePatch.centerWidth)) {
+		for (i in 0 until (center.width.roundToInt() / ninePatch.centerWidth)) {
 			RenderHelper.draw(matrixStack, center.left + i * ninePatch.centerWidth, y, ninePatch.center.u, ninePatch.center.v, ninePatch.centerWidth.toDouble(), height, ninePatch.texture.width, ninePatch.texture.height)
 		}
-		val remWidth = center.width.toInt() % ninePatch.centerWidth
+		val remWidth = center.width.roundToInt() % ninePatch.centerWidth
 		if (remWidth > 0) {
 			RenderHelper.draw(matrixStack, center.right - remWidth, y, ninePatch.center.u, ninePatch.center.v, remWidth.toDouble(), height, ninePatch.texture.width, ninePatch.texture.height)
 		}

src/main/kotlin/net/shadowfacts/cacao/view/button/EnumButton.kt

@@ -41,7 +41,9 @@ class EnumButton<E: Enum<E>>(
 			value = when (mouseButton) {
 				MouseButton.LEFT -> EnumHelper.next(value)
 				MouseButton.RIGHT -> EnumHelper.previous(value)
-				else -> value
+				else -> {
+					return false
+				}
 			}
 		}
 

src/main/kotlin/net/shadowfacts/cacao/view/textfield/AbstractTextField.kt

@@ -1,6 +1,7 @@
 package net.shadowfacts.cacao.view.textfield
 
 import net.minecraft.client.MinecraftClient
+import net.minecraft.client.gui.screen.TickableElement
 import net.minecraft.client.gui.widget.TextFieldWidget
 import net.minecraft.client.util.math.MatrixStack
 import net.minecraft.text.LiteralText
@@ -24,7 +25,7 @@ import org.lwjgl.glfw.GLFW
  */
 abstract class AbstractTextField<Impl: AbstractTextField<Impl>>(
 	initialText: String
-): View() {
+): View(), TickableElement {
 
 	/**
 	 * A function that is invoked when the text in this text field changes.
@@ -163,6 +164,10 @@ abstract class AbstractTextField<Impl: AbstractTextField<Impl>>(
 		return result || (isFirstResponder && keyCode != GLFW.GLFW_KEY_ESCAPE)
 	}
 
+	override fun tick() {
+		minecraftWidget.tick()
+	}
+
 	// todo: label for the TextFieldWidget?
 	private class ProxyWidget: TextFieldWidget(MinecraftClient.getInstance().textRenderer, 0, 0, 0, 0, LiteralText("")) {
 		// AbstractButtonWidget.height is protected

src/main/kotlin/net/shadowfacts/cacao/view/textfield/NumberField.kt

@@ -3,7 +3,7 @@ package net.shadowfacts.cacao.view.textfield
 /**
  * @author shadowfacts
  */
-class NumberField(
+open class NumberField(
 	initialValue: Int,
 	handler: ((NumberField) -> Unit)? = null,
 ): AbstractTextField<NumberField>(initialValue.toString()) {

src/main/kotlin/net/shadowfacts/cacao/view/textfield/TextField.kt

@@ -7,7 +7,7 @@ package net.shadowfacts.cacao.view.textfield
  * @param initialText The initial value of this text field.
  * @param handler A function that is invoked when the value of the text field changes.
  */
-class TextField(
+open class TextField(
 	initialText: String,
 	handler: ((TextField) -> Unit)? = null
 ): AbstractTextField<TextField>(initialText) {

src/main/kotlin/net/shadowfacts/phycon/block/redstone_emitter/RedstoneEmitterScreen.kt

@@ -129,10 +129,9 @@ class RedstoneEmitterScreen(
 				inv.leftAnchor equalTo (minX + 8)
 				inv.topAnchor equalTo (minY + 72)
 
-				// offset by 1 on each edge to account for MC border
 				field.widthAnchor equalTo 82
 				field.heightAnchor equalTo 11
-				field.leftAnchor equalTo (minX + 56)
+				field.leftAnchor equalTo (minX + 57)
 				field.topAnchor equalTo (minY + 23)
 
 				hStack.centerXAnchor equalTo view.centerXAnchor

src/main/kotlin/net/shadowfacts/phycon/block/terminal/ScrollTrackView.kt

@@ -0,0 +1,75 @@
+package net.shadowfacts.phycon.block.terminal
+
+import net.minecraft.util.Identifier
+import net.minecraft.util.math.MathHelper
+import net.shadowfacts.cacao.geometry.Point
+import net.shadowfacts.cacao.geometry.Rect
+import net.shadowfacts.cacao.util.Color
+import net.shadowfacts.cacao.util.MouseButton
+import net.shadowfacts.cacao.util.texture.Texture
+import net.shadowfacts.cacao.view.TextureView
+import net.shadowfacts.cacao.view.View
+import net.shadowfacts.phycon.PhysicalConnectivity
+
+/**
+ * @author shadowfacts
+ */
+class ScrollTrackView(
+	val scrollPositionChanged: (ScrollTrackView) -> Unit,
+): View() {
+
+	companion object {
+		private val THUMB = Texture(Identifier(PhysicalConnectivity.MODID, "textures/gui/terminal.png"), 52, 230)
+		private const val THUMB_WIDTH = 12.0
+		private const val THUMB_HEIGHT = 15.0
+	}
+
+	private lateinit var thumbView: TextureView
+
+	private var grabbedY: Double? = null
+
+	/**
+	 * The [0,1] normalized position of the scroll thumb.
+	 */
+	var scrollPosition: Double
+		get() = thumbView.frame.top / (frame.height - THUMB_HEIGHT)
+		set(value) {
+			val newTop = MathHelper.clamp(value, 0.0, 1.0) * (frame.height - THUMB_HEIGHT)
+			thumbView.frame = Rect(0.0, newTop, THUMB_WIDTH, THUMB_HEIGHT)
+		}
+
+	init {
+		respondsToDragging = true
+	}
+
+	override fun wasAdded() {
+		super.wasAdded()
+
+		thumbView = addSubview(TextureView(THUMB).apply {
+			usesConstraintBasedLayout = false
+			frame = Rect(0.0, 0.0, THUMB_WIDTH, THUMB_HEIGHT)
+		})
+	}
+
+	override fun mouseDragged(point: Point, delta: Point, mouseButton: MouseButton): Boolean {
+		if (grabbedY == null && point !in thumbView.frame) {
+			val newCenter = MathHelper.clamp(point.y, THUMB_HEIGHT / 2, frame.height - THUMB_HEIGHT / 2)
+			thumbView.frame = Rect(0.0, newCenter - THUMB_HEIGHT / 2, THUMB_WIDTH, THUMB_HEIGHT)
+		}
+
+		if (grabbedY == null) {
+			grabbedY = point.y - thumbView.frame.top
+		}
+		val newTop = MathHelper.clamp(point.y - grabbedY!!, 0.0, frame.height - THUMB_HEIGHT)
+		thumbView.frame = Rect(0.0, newTop, THUMB_WIDTH, THUMB_HEIGHT)
+
+		scrollPositionChanged(this)
+
+		return true
+	}
+
+	override fun mouseDragEnded(point: Point, mouseButton: MouseButton) {
+		grabbedY = null
+	}
+
+}

src/main/kotlin/net/shadowfacts/phycon/block/terminal/SortModeButton.kt

@@ -0,0 +1,57 @@
+package net.shadowfacts.phycon.block.terminal
+
+import net.minecraft.util.Identifier
+import net.shadowfacts.cacao.geometry.Point
+import net.shadowfacts.cacao.geometry.Size
+import net.shadowfacts.cacao.util.EnumHelper
+import net.shadowfacts.cacao.util.MouseButton
+import net.shadowfacts.cacao.util.texture.Texture
+import net.shadowfacts.cacao.view.TextureView
+import net.shadowfacts.cacao.view.button.AbstractButton
+import net.shadowfacts.phycon.PhysicalConnectivity
+import net.shadowfacts.phycon.util.SortMode
+
+/**
+ * @author shadowfacts
+ */
+class SortModeButton(
+	initialValue: SortMode,
+): AbstractButton<SortModeButton>(
+	TextureView(TEXTURES[initialValue]!!).apply {
+		intrinsicContentSize = Size(16.0, 16.0)
+	}
+) {
+
+	companion object {
+		private val ID = Identifier(PhysicalConnectivity.MODID, "textures/gui/terminal.png")
+		private val TEXTURES = mapOf(
+			SortMode.COUNT_HIGH_FIRST to Texture(ID, 0, 230),
+			SortMode.COUNT_LOW_FIRST to Texture(ID, 16, 230),
+			SortMode.ALPHABETICAL to Texture(ID, 32, 230),
+		)
+	}
+
+	private val textureView: TextureView
+		get() = content as TextureView
+
+	var value: SortMode = initialValue
+		set(value) {
+			field = value
+			textureView.texture = TEXTURES[value]!!
+		}
+
+	override fun mouseClicked(point: Point, mouseButton: MouseButton): Boolean {
+		if (!disabled) {
+			value = when (mouseButton) {
+				MouseButton.LEFT -> EnumHelper.next(value)
+				MouseButton.RIGHT -> EnumHelper.previous(value)
+				else -> {
+					return false
+				}
+			}
+		}
+
+		return super.mouseClicked(point, mouseButton)
+	}
+
+}

src/main/kotlin/net/shadowfacts/phycon/block/terminal/TerminalRequestAmountViewController.kt

@@ -0,0 +1,151 @@
+package net.shadowfacts.phycon.block.terminal
+
+import net.minecraft.item.ItemStack
+import net.minecraft.util.Identifier
+import net.shadowfacts.cacao.util.KeyModifiers
+import net.shadowfacts.cacao.util.texture.Texture
+import net.shadowfacts.cacao.view.Label
+import net.shadowfacts.cacao.view.TextureView
+import net.shadowfacts.cacao.view.button.Button
+import net.shadowfacts.cacao.view.textfield.NumberField
+import net.shadowfacts.cacao.viewcontroller.ViewController
+import net.shadowfacts.kiwidsl.dsl
+import net.shadowfacts.phycon.PhysicalConnectivity
+import org.lwjgl.glfw.GLFW
+import kotlin.math.ceil
+import kotlin.math.floor
+
+/**
+ * @author shadowfacts
+ */
+class TerminalRequestAmountViewController(
+	val screen: TerminalScreen,
+	val stack: ItemStack,
+): ViewController() {
+
+	companion object {
+		private val BACKGROUND = Texture(Identifier(PhysicalConnectivity.MODID, "textures/gui/terminal_amount.png"), 0, 0)
+	}
+
+	lateinit var field: NumberField
+		private set
+
+	override fun viewDidLoad() {
+		super.viewDidLoad()
+
+		val pane = view.addLayoutGuide()
+		view.solver.dsl {
+			pane.widthAnchor equalTo 158
+			pane.heightAnchor equalTo 62
+			pane.centerXAnchor equalTo view.centerXAnchor
+			pane.centerYAnchor equalTo view.centerYAnchor
+		}
+
+		val background = view.addSubview(TextureView(BACKGROUND)).apply {
+			zIndex = -1.0
+		}
+
+		field = view.addSubview(AmountField(this)).apply {
+			drawBackground = false
+		}
+		field.becomeFirstResponder()
+
+		val requestLabel = Label("Request", shadow = true)
+		val request = view.addSubview(Button(requestLabel) {
+			doRequest()
+		})
+
+		val plusOneLabel = Label("+1", shadow = true)
+		val plusOne = view.addSubview(Button(plusOneLabel) {
+			field.number = (field.number ?: 1) + 1
+		})
+		val plusTenLabel = Label("+10", shadow = true)
+		val plusTen = view.addSubview(Button(plusTenLabel) {
+			val old = field.number ?: 1
+			field.number = ceil((old + 1) / 10.0).toInt() * 10
+		})
+		val plusHundredLabel = Label("+100", shadow = true)
+		val plusHundred = view.addSubview(Button(plusHundredLabel) {
+			val old = field.number ?: 1
+			field.number = ceil((old + 1) / 100.0).toInt() * 100
+		})
+
+		val minusOneLabel = Label("-1", shadow = true)
+		val minusOne = view.addSubview(Button(minusOneLabel) {
+			field.number = (field.number ?: 1) - 1
+		})
+		val minusTenLabel = Label("-10", shadow = true)
+		val minusTen = view.addSubview(Button(minusTenLabel) {
+			val old = field.number ?: 1
+			field.number = floor((old - 1) / 10.0).toInt() * 10
+		})
+		val minusHundredLabel = Label("-100", shadow = true)
+		val minusHundred = view.addSubview(Button(minusHundredLabel) {
+			val old = field.number ?: 1
+			field.number = floor((old - 1) / 100.0).toInt() * 100
+		})
+
+		view.solver.dsl {
+			background.leftAnchor equalTo pane.leftAnchor
+			background.rightAnchor equalTo pane.rightAnchor
+			background.topAnchor equalTo pane.topAnchor
+			background.bottomAnchor equalTo pane.bottomAnchor
+
+			field.leftAnchor equalTo (pane.leftAnchor + 8)
+			field.topAnchor equalTo (pane.topAnchor + 27)
+			field.widthAnchor equalTo 80
+			field.heightAnchor equalTo 9
+
+			request.leftAnchor equalTo (pane.leftAnchor + 101)
+			request.centerYAnchor equalTo field.centerYAnchor
+			request.widthAnchor equalTo 50
+			request.heightAnchor equalTo 20
+
+			plusOne.leftAnchor equalTo (pane.leftAnchor + 7)
+			plusTen.leftAnchor equalTo (plusOne.rightAnchor + 3)
+			plusHundred.leftAnchor equalTo (plusTen.rightAnchor + 3)
+			plusHundred.rightAnchor equalTo (pane.leftAnchor + 97)
+			plusOne.widthAnchor equalTo plusTen.widthAnchor
+			plusOne.widthAnchor equalTo plusHundred.widthAnchor
+
+			plusOne.topAnchor equalTo (pane.topAnchor + 7)
+			plusTen.topAnchor equalTo (pane.topAnchor + 7)
+			plusHundred.topAnchor equalTo (pane.topAnchor + 7)
+			plusOne.heightAnchor equalTo 14
+			plusTen.heightAnchor equalTo 14
+			plusHundred.heightAnchor equalTo 14
+
+			minusOne.leftAnchor equalTo (pane.leftAnchor + 7)
+			minusTen.leftAnchor equalTo (minusOne.rightAnchor + 3)
+			minusHundred.leftAnchor equalTo (minusTen.rightAnchor + 3)
+			minusHundred.rightAnchor equalTo (pane.leftAnchor + 97)
+			minusOne.widthAnchor equalTo minusTen.widthAnchor
+			minusOne.widthAnchor equalTo minusHundred.widthAnchor
+
+			minusOne.topAnchor equalTo (pane.topAnchor + 41)
+			minusTen.topAnchor equalTo (pane.topAnchor + 41)
+			minusHundred.topAnchor equalTo (pane.topAnchor + 41)
+			minusOne.heightAnchor equalTo 14
+			minusTen.heightAnchor equalTo 14
+			minusHundred.heightAnchor equalTo 14
+		}
+	}
+
+	private fun doRequest() {
+		screen.requestItem(stack, field.number ?: 1)
+		window!!.removeFromScreen()
+		screen.amountVC = null
+	}
+
+	class AmountField(val vc: TerminalRequestAmountViewController): NumberField(1) {
+		override fun keyPressed(keyCode: Int, modifiers: KeyModifiers): Boolean {
+			return if (keyCode == GLFW.GLFW_KEY_ENTER) {
+				vc.doRequest()
+				true
+			} else {
+				super.keyPressed(keyCode, modifiers)
+			}
+		}
+	}
+
+}

src/main/kotlin/net/shadowfacts/phycon/block/terminal/TerminalScreen.kt

@@ -3,10 +3,7 @@ package net.shadowfacts.phycon.block.terminal
 import com.mojang.blaze3d.systems.RenderSystem
 import net.minecraft.client.MinecraftClient
 import net.minecraft.client.gui.DrawableHelper
-import net.minecraft.client.gui.screen.ingame.HandledScreen
-import net.minecraft.client.gui.widget.AbstractButtonWidget
-import net.minecraft.client.gui.widget.AbstractPressableButtonWidget
-import net.minecraft.client.gui.widget.ButtonWidget
+import net.minecraft.client.gui.Element
 import net.minecraft.client.gui.widget.TextFieldWidget
 import net.minecraft.client.render.Tessellator
 import net.minecraft.client.render.VertexConsumerProvider
@@ -17,235 +14,64 @@ import net.minecraft.screen.slot.Slot
 import net.minecraft.screen.slot.SlotActionType
 import net.minecraft.text.LiteralText
 import net.minecraft.text.Text
-import net.minecraft.text.TranslatableText
 import net.minecraft.util.Identifier
-import net.minecraft.util.math.MathHelper
+import net.shadowfacts.cacao.CacaoHandledScreen
+import net.shadowfacts.cacao.window.ScreenHandlerWindow
+import net.shadowfacts.cacao.window.Window
 import net.shadowfacts.phycon.PhysicalConnectivity
 import net.shadowfacts.phycon.networking.C2STerminalRequestItem
 import net.shadowfacts.phycon.networking.C2STerminalUpdateDisplayedItems
 import net.shadowfacts.phycon.util.SortMode
-import net.shadowfacts.phycon.util.next
-import net.shadowfacts.phycon.util.prev
-import org.lwjgl.glfw.GLFW
-import java.lang.NumberFormatException
 import java.math.RoundingMode
 import java.text.DecimalFormat
 import kotlin.math.ceil
-import kotlin.math.floor
 import kotlin.math.min
-import kotlin.math.roundToInt
 
 /**
  * @author shadowfacts
  */
-// todo: translate title
-class TerminalScreen(handler: TerminalScreenHandler, playerInv: PlayerInventory, title: Text): HandledScreen<TerminalScreenHandler>(handler, playerInv, title) {
+class TerminalScreen(handler: TerminalScreenHandler, playerInv: PlayerInventory, title: Text): CacaoHandledScreen<TerminalScreenHandler>(handler, playerInv, title) {
+
 	companion object {
 		private val BACKGROUND = Identifier(PhysicalConnectivity.MODID, "textures/gui/terminal.png")
-		private val DIALOG = Identifier(PhysicalConnectivity.MODID, "textures/gui/terminal_amount.png")
 	}
 
-	private lateinit var searchBox: TextFieldWidget
-	private lateinit var sortButton: SortButton
-	var sortButtonX: Int = 0
-		private set
-	var sortButtonY = 0
-		private set
-	private lateinit var amountBox: TextFieldWidget
-	private var dialogStack = ItemStack.EMPTY
-	private var showingAmountDialog = false
-		set(value) {
-			val oldValue = field
-			field = value
-			for (e in dialogChildren) {
-				e.visible = value
-			}
-			amountBox.isVisible
-			searchBox.setSelected(!value)
-			amountBox.setSelected(value)
-			if (value && !oldValue) {
-				amountBox.text = "1"
-			}
-			updateFocusedElement()
-		}
-	private var dialogChildren = mutableListOf<AbstractButtonWidget>()
+	val backgroundWidth: Int
+		get() = backgroundWidth
+	val backgroundHeight: Int
+		get() = backgroundHeight
 
-	private var scrollPosition = 0f
-	private var isDraggingScrollThumb = false
-	private val trackMinY = 18
-	private val trackHeight = 106
-	private val thumbHeight = 15
-	private val thumbWidth = 12
-	private val scrollThumbTop: Int
-		get() = trackMinY + (scrollPosition * (trackHeight - thumbHeight)).roundToInt()
+	val terminalVC = TerminalViewController(this, handler, handler.terminal)
+	var amountVC: TerminalRequestAmountViewController? = null
 
-	private val dialogWidth = 158
-	private val dialogHeight = 62
+	var searchQuery = ""
+	var scrollPosition = 0.0
+	var sortMode = SortMode.COUNT_HIGH_FIRST
 
 	init {
 		backgroundWidth = 252
 		backgroundHeight = 222
-	}
 
-	override fun init() {
-		super.init()
+		addWindow(ScreenHandlerWindow(handler, terminalVC))
 
-		children.clear()
-		dialogChildren.clear()
-
-		client!!.keyboard.setRepeatEvents(true)
-
-		searchBox = TextFieldWidget(textRenderer, x + 138, y + 6, 80, 9, LiteralText("Search"))
-		searchBox.setMaxLength(50)
-		// setHasBorder is actually setDrawsBackground
-		searchBox.setHasBorder(false)
-		searchBox.isVisible = true
-		searchBox.setSelected(true)
-		searchBox.setEditableColor(0xffffff)
-		addChild(searchBox)
-
-		sortButtonX = x + 256
-		sortButtonY = y
-		sortButton = SortButton(sortButtonX, sortButtonY, handler.sortMode, {
-			requestUpdatedItems()
-		}, ::renderTooltip)
-		addButton(sortButton)
-
-		val dialogMinX = width / 2 - dialogWidth / 2
-		val dialogMinY = height / 2 - dialogHeight / 2
-		amountBox = TextFieldWidget(textRenderer, dialogMinX + 8, dialogMinY + 27, 80, 9, LiteralText("Amount"))
-		amountBox.setHasBorder(false)
-		amountBox.isVisible = false
-		amountBox.setSelected(false)
-		amountBox.setEditableColor(0xffffff)
-		amountBox.setTextPredicate {
-			if (it.isEmpty()) {
-				true
-			} else {
-				try {
-					Integer.parseInt(it) > 0
-				} catch (e: NumberFormatException) {
-					false
-				}
-			}
-		}
-		dialogChildren.add(amountBox)
-
-		val plusOne = SmallButton(dialogMinX + 7, dialogMinY + 7, 28, LiteralText("+1")) {
-			amountBox.intValue += 1
-		}
-		dialogChildren.add(plusOne)
-
-		val plusTen = SmallButton(dialogMinX + 7 + 28 + 3, dialogMinY + 7, 28, LiteralText("+10")) {
-			amountBox.intValue = ceil((amountBox.intValue + 1) / 10.0).toInt() * 10
-		}
-		dialogChildren.add(plusTen)
-
-		val plusHundred = SmallButton(dialogMinX + 7 + (28 + 3) * 2, dialogMinY + 7, 28, LiteralText("+100")) {
-			amountBox.intValue = ceil((amountBox.intValue + 1) / 100.0).toInt() * 100
-		}
-		dialogChildren.add(plusHundred)
-
-		val minusOne = SmallButton(dialogMinX + 7, dialogMinY + 39, 28, LiteralText("-1")) {
-			amountBox.intValue -= 1
-		}
-		dialogChildren.add(minusOne)
-
-		val minusTen = SmallButton(dialogMinX + 7 + 28 + 3, dialogMinY + 39, 28, LiteralText("-10")) {
-			amountBox.intValue = floor((amountBox.intValue - 1) / 10.0).toInt() * 10
-		}
-		dialogChildren.add(minusTen)
-
-		val minusHundred = SmallButton(dialogMinX + 7 + (28 + 3) * 2, dialogMinY + 39, 28, LiteralText("-100")) {
-			amountBox.intValue = floor((amountBox.intValue - 1) / 100.0).toInt() * 100
-		}
-		dialogChildren.add(minusHundred)
-
-		// 101,25
-		val request = ButtonWidget(dialogMinX + 101, dialogMinY + 21, 50, 20, LiteralText("Request")) {
-			doDialogRequest()
-		}
-		dialogChildren.add(request)
-
-		updateFocusedElement()
 		requestUpdatedItems()
 	}
 
-	private fun updateFocusedElement() {
-		focused = if (showingAmountDialog) {
-			amountBox
-		} else if (searchBox.isFocused) {
-			searchBox
-		} else {
-			null
-		}
+	fun requestItem(stack: ItemStack, amount: Int) {
+		val netHandler = MinecraftClient.getInstance().player!!.networkHandler
+		val packet = C2STerminalRequestItem(handler.terminal, stack, amount)
+		netHandler.sendPacket(packet)
 	}
 
-	private fun requestUpdatedItems() {
+	fun requestUpdatedItems() {
 		val player = MinecraftClient.getInstance().player!!
-		player.networkHandler.sendPacket(C2STerminalUpdateDisplayedItems(handler.terminal, searchBox.text, sortButton.mode, scrollPosition))
+		player.networkHandler.sendPacket(C2STerminalUpdateDisplayedItems(handler.terminal, searchQuery, sortMode, scrollPosition.toFloat()))
 	}
 
-	override fun tick() {
-		super.tick()
-		searchBox.tick()
-		amountBox.tick()
-	}
-
-	override fun drawForeground(matrixStack: MatrixStack, mouseX: Int, mouseY: Int) {
-		textRenderer.draw(matrixStack, title, 65f, 6f, 0x404040)
-		textRenderer.draw(matrixStack, playerInventory.displayName, 65f, backgroundHeight - 94f, 0x404040)
-		textRenderer.draw(matrixStack, TranslatableText("gui.phycon.terminal_buffer"), 7f, 6f, 0x404040)
-	}
-
-	override fun drawBackground(matrixStack: MatrixStack, delta: Float, mouseX: Int, mouseY: Int) {
-		// if the dialog is open, the background gradient will be drawn in front of the main terminal gui
-		if (!showingAmountDialog) {
-			renderBackground(matrixStack)
-		}
-
-		RenderSystem.color4f(1f, 1f, 1f, 1f)
-		client!!.textureManager.bindTexture(BACKGROUND)
-		val x = (width - backgroundWidth) / 2
-		val y = (height - backgroundHeight) / 2
-		drawTexture(matrixStack, x, y, 0, 0, backgroundWidth, backgroundHeight)
-
-		// scroll thumb
-		drawTexture(matrixStack, x + 232, y + scrollThumbTop, 52, 230, thumbWidth, thumbHeight)
-	}
-
-	@ExperimentalUnsignedTypes
-	override fun render(matrixStack: MatrixStack, mouseX: Int, mouseY: Int, delta: Float) {
-		if (showingAmountDialog) {
-			RenderSystem.pushMatrix()
-			// items are rendered at some stupidly high z offset. item amounts at an even higher one
-			RenderSystem.translatef(0f, 0f, -350f)
-
-			// fake the mouse x/y while showing a dialog so slot mouseover highlights aren't drawn
-			super.render(matrixStack, -1, -1, delta)
-
-			RenderSystem.popMatrix()
-		} else {
-			super.render(matrixStack, mouseX, mouseY, delta)
-		}
-
-		searchBox.render(matrixStack, mouseX, mouseY, delta)
-
-		if (showingAmountDialog) {
-			renderBackground(matrixStack)
-
-			RenderSystem.color4f(1f, 1f, 1f, 1f)
-			client!!.textureManager.bindTexture(DIALOG)
-			val dialogMinX = width / 2 - dialogWidth / 2
-			val dialogMinY = height / 2 - dialogHeight / 2
-			drawTexture(matrixStack, dialogMinX, dialogMinY, 0, 0, dialogWidth, dialogHeight)
-
-			for (e in dialogChildren) {
-				e.render(matrixStack, mouseX, mouseY, delta)
-			}
-		} else {
-			drawMouseoverTooltip(matrixStack, mouseX, mouseY)
-		}
+	private fun showRequestAmountDialog(stack: ItemStack) {
+		val vc = TerminalRequestAmountViewController(this, stack)
+		addWindow(Window(vc))
+		amountVC = vc
 	}
 
 	@ExperimentalUnsignedTypes
@@ -299,21 +125,29 @@ class TerminalScreen(handler: TerminalScreenHandler, playerInv: PlayerInventory,
 		matrixStack.pop()
 	}
 
-	private fun isPointInsScrollThumb(mouseX: Double, mouseY: Double): Boolean {
+	override fun drawBackground(matrixStack: MatrixStack, delta: Float, mouseX: Int, mouseY: Int) {
+		super.drawBackground(matrixStack, delta, mouseX, mouseY)
+
+		RenderSystem.color4f(1f, 1f, 1f, 1f)
+		client!!.textureManager.bindTexture(BACKGROUND)
 		val x = (width - backgroundWidth) / 2
 		val y = (height - backgroundHeight) / 2
-		val thumbMinX = x + 232
-		val thumbMaxX = thumbMinX + thumbWidth
-		val thumbMinY = y + scrollThumbTop
-		val thumbMaxY = thumbMinY + thumbHeight
-		return mouseX >= thumbMinX && mouseX < thumbMaxX && mouseY >= thumbMinY && mouseY < thumbMaxY
+		drawTexture(matrixStack, x, y, 0, 0, backgroundWidth, backgroundHeight)
+	}
+
+	override fun tick() {
+		super.tick()
+
+		if (amountVC != null) {
+			amountVC!!.field.tick()
+		} else {
+			terminalVC.searchField.tick()
+		}
 	}
 
 	override fun onMouseClick(slot: Slot?, invSlot: Int, clickData: Int, type: SlotActionType?) {
 		super.onMouseClick(slot, invSlot, clickData, type)
 
-		updateFocusedElement()
-
 		if (slot != null && !slot.stack.isEmpty && handler.isNetworkSlot(slot.id)) {
 			val stack = slot.stack
 
@@ -325,210 +159,18 @@ class TerminalScreen(handler: TerminalScreenHandler, playerInv: PlayerInventory,
 					// right click, request half stack
 					requestItem(stack, ceil(min(stack.count, stack.maxCount) / 2f).toInt())
 				} else {
-					dialogStack = stack
-					showingAmountDialog = true
-					searchBox.setSelected(false)
+					showRequestAmountDialog(stack)
 				}
 			}
 		}
 	}
 
-	override fun mouseClicked(mouseX: Double, mouseY: Double, button: Int): Boolean {
-		if (showingAmountDialog) {
-			for (e in dialogChildren) {
-				if (e.mouseClicked(mouseX, mouseY, button)) {
-					return true
-				}
-			}
-			return false
+	private val fakeFocusedElement = TextFieldWidget(textRenderer, 0, 0, 0, 0, LiteralText(""))
+	override fun getFocused(): Element? {
+		return if (windows.last().firstResponder != null) {
+			fakeFocusedElement
 		} else {
-			if (isPointInsScrollThumb(mouseX, mouseY)) {
-				isDraggingScrollThumb = true
-				return true
-			}
-
-			return super.mouseClicked(mouseX, mouseY, button)
-		}
-	}
-
-	override fun mouseDragged(mouseX: Double, mouseY: Double, button: Int, deltaX: Double, deltaY: Double): Boolean {
-		if (showingAmountDialog) {
-			return false
-		} else if (isDraggingScrollThumb) {
-			scrollPosition = (mouseY.toFloat() - (y + trackMinY) - 7.5f) / (trackHeight - 15)
-			scrollPosition = MathHelper.clamp(scrollPosition, 0f, 1f)
-			requestUpdatedItems()
-			return true
-		} else {
-			return super.mouseDragged(mouseX, mouseY, button, deltaX, deltaY)
-		}
-	}
-
-	override fun mouseMoved(d: Double, e: Double) {
-		if (showingAmountDialog) {
-		} else {
-			super.mouseMoved(d, e)
-		}
-	}
-
-	override fun mouseReleased(d: Double, e: Double, i: Int): Boolean {
-		if (showingAmountDialog) {
-			return false
-		} else {
-			isDraggingScrollThumb = false
-
-			return super.mouseReleased(d, e, i)
-		}
-	}
-
-	override fun mouseScrolled(mouseX: Double, mouseY: Double, amount: Double): Boolean {
-		if (showingAmountDialog) {
-			return false
-		} else {
-			var newOffsetInRows = handler.currentScrollOffsetInRows() - amount.toInt()
-			newOffsetInRows = MathHelper.clamp(newOffsetInRows, 0, handler.maxScrollOffsetInRows())
-			val newScrollPosition = newOffsetInRows / handler.maxScrollOffsetInRows().toFloat()
-			scrollPosition = newScrollPosition
-			requestUpdatedItems()
-
-			return super.mouseScrolled(mouseX, mouseY, amount)
-		}
-	}
-
-	override fun charTyped(c: Char, i: Int): Boolean {
-		if (showingAmountDialog) {
-			return amountBox.charTyped(c, i)
-		} else {
-			val oldText = searchBox.text
-			if (searchBox.charTyped(c, i)) {
-				if (searchBox.text != oldText) {
-					scrollPosition = 0f
-					requestUpdatedItems()
-				}
-				return true
-			}
-
-			return super.charTyped(c, i)
-		}
-	}
-
-	override fun keyPressed(key: Int, j: Int, k: Int): Boolean {
-		if (showingAmountDialog) {
-			return when (key) {
-				GLFW.GLFW_KEY_ESCAPE -> {
-					showingAmountDialog = false
-					true
-				}
-				GLFW.GLFW_KEY_ENTER -> {
-					doDialogRequest()
-					true
-				}
-				else -> {
-					amountBox.keyPressed(key, j, k)
-				}
-			}
-		} else {
-			val oldText = searchBox.text
-			if (searchBox.keyPressed(key, j, k)) {
-				if (searchBox.text != oldText) {
-					scrollPosition = 0f
-					requestUpdatedItems()
-				}
-				return true
-			}
-			return if (searchBox.isFocused && searchBox.isVisible && key != GLFW.GLFW_KEY_ESCAPE) {
-				true
-			} else {
-				super.keyPressed(key, j, k)
-			}
-		}
-	}
-
-	private fun doDialogRequest() {
-		showingAmountDialog = false
-		requestItem(dialogStack, amountBox.intValue)
-	}
-
-	private fun requestItem(stack: ItemStack, amount: Int) {
-		val netHandler = MinecraftClient.getInstance().player!!.networkHandler
-		val packet = C2STerminalRequestItem(handler.terminal, stack, amount)
-		netHandler.sendPacket(packet)
-	}
-
-	private var TextFieldWidget.intValue: Int
-		get() = if (text.isEmpty()) 0 else Integer.parseInt(text)
-		set(value) {
-			text = value.toString()
-			setSelected(true)
-		}
-
-	class SmallButton(x: Int, y: Int, width: Int, title: Text, action: PressAction): ButtonWidget(x, y, width, 14, title, action) {
-		@ExperimentalUnsignedTypes
-		override fun renderButton(matrixStack: MatrixStack, mouseX: Int, mouseY: Int, delta: Float) {
-			val client = MinecraftClient.getInstance()
-			client.textureManager.bindTexture(DIALOG)
-			RenderSystem.color4f(1f, 1f, 1f, 1f)
-			val v = if (isHovered) 142 else 128
-			RenderSystem.enableBlend()
-			RenderSystem.defaultBlendFunc()
-			RenderSystem.enableDepthTest()
-			drawTexture(matrixStack, x, y, 0, v, width / 2, height)
-			drawTexture(matrixStack, x + width / 2, y, 200 - width / 2, v, width / 2, height)
-			drawCenteredText(matrixStack, client.textRenderer, message, x + width / 2, y + (height - 8) / 2, 0xffffffffu.toInt())
-		}
-	}
-
-	class SortButton(
-		x: Int,
-		y: Int,
-		var mode: SortMode,
-		val onChange: (SortMode) -> Unit,
-		val doRenderTooltip: (MatrixStack, Text, Int, Int) -> Unit
-	): AbstractPressableButtonWidget(x, y, 20, 20, LiteralText("")) {
-		override fun onPress() {}
-
-		override fun mouseClicked(mouseX: Double, mouseY: Double, button: Int): Boolean {
-			if ((button == 0 || button == 1) && clicked(mouseX, mouseY)) {
-				val newVal = if (button == 0) mode.next else mode.prev
-				mode = newVal
-				onChange(mode)
-
-				playDownSound(MinecraftClient.getInstance().soundManager)
-				return true
-			}
-			return false
-		}
-
-		override fun renderButton(matrixStack: MatrixStack, mouseX: Int, mouseY: Int, delta: Float) {
-			val client = MinecraftClient.getInstance()
-			RenderSystem.color4f(1f, 1f, 1f, 1f)
-			RenderSystem.enableBlend()
-			RenderSystem.defaultBlendFunc()
-			RenderSystem.enableDepthTest()
-
-			client.textureManager.bindTexture(WIDGETS_LOCATION)
-			val k = getYImage(isHovered)
-			drawTexture(matrixStack, x, y, 0, 46 + k * 20, width / 2, height)
-			drawTexture(matrixStack, x + width / 2, y, 200 - width / 2, 46 + k * 20, width / 2, height)
-
-			client.textureManager.bindTexture(BACKGROUND)
-			val u: Int = when (mode) {
-				SortMode.COUNT_HIGH_FIRST -> 0
-				SortMode.COUNT_LOW_FIRST -> 16
-				SortMode.ALPHABETICAL -> 32
-			}
-			drawTexture(matrixStack, x + 2, y + 2, u, 230, 16, 16)
-
-			if (isHovered) {
-				renderToolTip(matrixStack, mouseX, mouseY)
-			}
-		}
-
-		override fun renderToolTip(matrixStack: MatrixStack, mouseX: Int, mouseY: Int) {
-			val text = LiteralText("")
-			text.append("Sort by: ")
-			text.append(mode.tooltip)
-			doRenderTooltip(matrixStack, text, mouseX, mouseY)
+			null
 		}
 	}
 

src/main/kotlin/net/shadowfacts/phycon/block/terminal/TerminalScreenHandler.kt

@@ -40,7 +40,7 @@ class TerminalScreenHandler(syncId: Int, val playerInv: PlayerInventory, val ter
 		private set
 	var totalEntries = 0
 		private set
-	private var scrollPosition = 0f
+	var scrollPosition = 0f
 	private var itemEntries = listOf<Entry>()
 		set(value) {
 			field = value

src/main/kotlin/net/shadowfacts/phycon/block/terminal/TerminalViewController.kt

@@ -0,0 +1,159 @@
+package net.shadowfacts.phycon.block.terminal
+
+import net.minecraft.text.TranslatableText
+import net.minecraft.util.math.MathHelper
+import net.shadowfacts.cacao.geometry.Point
+import net.shadowfacts.cacao.util.Color
+import net.shadowfacts.cacao.view.Label
+import net.shadowfacts.cacao.view.View
+import net.shadowfacts.cacao.view.textfield.TextField
+import net.shadowfacts.cacao.viewcontroller.ViewController
+import net.shadowfacts.kiwidsl.dsl
+import net.shadowfacts.phycon.util.SortMode
+
+/**
+ * @author shadowfacts
+ */
+class TerminalViewController(
+	val screen: TerminalScreen,
+	val handler: TerminalScreenHandler,
+	val terminal: TerminalBlockEntity,
+): ViewController() {
+
+	private lateinit var scrollTrack: ScrollTrackView
+	lateinit var sortMode: SortModeButton
+		private set
+	lateinit var searchField: TextField
+		private set
+
+	override fun loadView() {
+		view = ScrollHandlingView(this)
+	}
+
+	override fun viewDidLoad() {
+		super.viewDidLoad()
+
+		val pane = view.addLayoutGuide()
+		view.solver.dsl {
+			pane.centerXAnchor equalTo view.centerXAnchor
+			pane.centerYAnchor equalTo view.centerYAnchor
+			pane.widthAnchor equalTo screen.backgroundWidth
+			pane.heightAnchor equalTo screen.backgroundHeight
+		}
+
+		val buffer = view.addLayoutGuide()
+		view.solver.dsl {
+			buffer.leftAnchor equalTo (pane.leftAnchor + 7)
+			buffer.topAnchor equalTo (pane.topAnchor + 17)
+			buffer.widthAnchor equalTo (18 * 3)
+			buffer.heightAnchor equalTo (18 * 6)
+		}
+
+		val network = view.addLayoutGuide()
+		view.solver.dsl {
+			network.leftAnchor equalTo (pane.leftAnchor + 65)
+			network.topAnchor equalTo buffer.topAnchor
+			network.widthAnchor equalTo (18 * 9)
+			network.heightAnchor equalTo (18 * 6)
+		}
+
+		val playerInv = view.addLayoutGuide()
+		view.solver.dsl {
+			playerInv.leftAnchor equalTo network.leftAnchor
+			playerInv.topAnchor equalTo (pane.topAnchor + 139)
+			playerInv.widthAnchor equalTo (18 * 9)
+			playerInv.heightAnchor equalTo 76
+		}
+
+		val titleLabel = view.addSubview(Label(screen.title)).apply {
+			textColor = Color.TEXT
+		}
+		val playerInvLabel = view.addSubview(Label(handler.playerInv.displayName)).apply {
+			textColor = Color.TEXT
+		}
+		val bufferLabel = view.addSubview(Label(TranslatableText("gui.phycon.terminal_buffer"))).apply {
+			textColor = Color.TEXT
+		}
+
+		searchField = view.addSubview(TerminalSearchField()).apply {
+			handler = ::searchFieldChanged
+			drawBackground = false
+		}
+		searchField.becomeFirstResponder()
+
+		scrollTrack = view.addSubview(ScrollTrackView(::scrollPositionChanged))
+
+		sortMode = view.addSubview(SortModeButton(SortMode.COUNT_HIGH_FIRST)).apply {
+			handler = ::sortModeChanged
+		}
+
+		view.solver.dsl {
+			titleLabel.leftAnchor equalTo network.leftAnchor
+			titleLabel.topAnchor equalTo (pane.topAnchor + 6)
+
+			bufferLabel.leftAnchor equalTo buffer.leftAnchor
+			bufferLabel.topAnchor equalTo titleLabel.topAnchor
+
+			playerInvLabel.leftAnchor equalTo playerInv.leftAnchor
+			playerInvLabel.topAnchor equalTo (pane.bottomAnchor - 94)
+
+			searchField.leftAnchor equalTo (pane.leftAnchor + 138)
+			searchField.topAnchor equalTo (pane.topAnchor + 5)
+			searchField.widthAnchor equalTo 80
+			searchField.heightAnchor equalTo 9
+
+			scrollTrack.leftAnchor equalTo (pane.leftAnchor + 232)
+			scrollTrack.topAnchor equalTo (network.topAnchor + 1)
+			scrollTrack.bottomAnchor equalTo (network.bottomAnchor - 1)
+			scrollTrack.widthAnchor equalTo 12
+
+			sortMode.leftAnchor equalTo pane.rightAnchor + 4
+			sortMode.topAnchor equalTo pane.topAnchor
+			sortMode.widthAnchor equalTo 20
+			sortMode.heightAnchor equalTo 20
+		}
+	}
+
+	private fun searchFieldChanged(field: TextField) {
+		screen.searchQuery = field.text
+		screen.requestUpdatedItems()
+	}
+
+	private fun scrollPositionChanged(track: ScrollTrackView) {
+		val oldOffset = handler.currentScrollOffsetInRows()
+
+		handler.scrollPosition = track.scrollPosition.toFloat()
+		screen.scrollPosition = track.scrollPosition
+
+		if (handler.currentScrollOffsetInRows() != oldOffset) {
+			screen.requestUpdatedItems()
+		}
+	}
+
+	private fun sortModeChanged(button: SortModeButton) {
+		screen.sortMode = button.value
+		screen.requestUpdatedItems()
+	}
+
+	class TerminalSearchField: TextField("") {
+		override fun resignFirstResponder() {
+			// no-op
+		}
+	}
+
+	class ScrollHandlingView(val vc: TerminalViewController): View() {
+		override fun mouseScrolled(point: Point, amount: Double): Boolean {
+			var newOffsetInRows = vc.handler.currentScrollOffsetInRows() - amount.toInt()
+			newOffsetInRows = MathHelper.clamp(newOffsetInRows, 0, vc.handler.maxScrollOffsetInRows())
+			if (newOffsetInRows != vc.handler.currentScrollOffsetInRows()) {
+				val newScrollPosition = newOffsetInRows / vc.handler.maxScrollOffsetInRows().toDouble()
+				vc.screen.scrollPosition = newScrollPosition
+				vc.scrollTrack.scrollPosition = newScrollPosition
+				vc.screen.requestUpdatedItems()
+			}
+
+			return true
+		}
+	}
+
+}