Fix crash in EnumButtonTests due to attempted TextRenderer usage

Add shadow, line wrapping, line maximum

src/main/kotlin/net/shadowfacts/asmr/TestCacaoScreen.kt

@@ -20,7 +20,7 @@ class TestCacaoScreen: CacaoScreen() {
 
 	init {
 		addWindow(Window().apply {
-			val stack = addView(StackView(Axis.VERTICAL, StackView.Distribution.CENTER).apply {
+			val stack = addView(StackView(Axis.VERTICAL, StackView.Distribution.CENTER, spacing = 4.0).apply {
 				backgroundColor = Color.WHITE
 			})
 			val red = stack.addArrangedSubview(TextureView(Texture(Identifier("textures/block/birch_log_top.png"), 0, 0, 16, 16)).apply {
@@ -41,9 +41,23 @@ class TestCacaoScreen: CacaoScreen() {
 			).apply {
 				handler = {
 					println("dropdown value: ${it.value}")
+					val dialog = DialogView(
+							"New redstone mode",
+							it.value.name,
+							arrayOf(DialogView.DefaultButtonType.OK),
+							Texture(Identifier("textures/block/birch_log_top.png"), 0, 0, 16, 16),
+							buttonCallback = { _, window ->
+								window.removeFromScreen()
+							}
+					)
+					val dialogWindow = Window()
+					dialogWindow.addView(dialog)
+					this@TestCacaoScreen.addWindow(dialogWindow)
 				}
 			})
 
+			val label = addView(Label("test ".repeat(100), maxLines = 5))
+
 			solver.dsl {
 				stack.topAnchor equalTo 0
 				stack.centerXAnchor equalTo this@apply.centerXAnchor
@@ -51,9 +65,11 @@ class TestCacaoScreen: CacaoScreen() {
 				purple.centerXAnchor equalTo blue.centerXAnchor
 				purple.centerYAnchor equalTo blue.centerYAnchor
 //				purple.widthAnchor equalTo 50
-			}
 
-			layout()
+				label.topAnchor equalTo 0
+				label.leftAnchor equalTo 0
+				label.widthAnchor equalTo 100
+			}
 
 
 //			val red = addView(View().apply {

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

@@ -38,6 +38,7 @@ open class CacaoScreen: Screen(TextComponent("CacaoScreen")) {
 	fun <T: Window> addWindow(window: T, index: Int = _windows.size): T {
 		_windows.add(index, window)
 		window.screen = this
+		window.resize(width, height)
 		return window
 	}
 
@@ -71,16 +72,12 @@ open class CacaoScreen: Screen(TextComponent("CacaoScreen")) {
 	override fun mouseClicked(mouseX: Double, mouseY: Double, button: Int): Boolean {
 		val window = windows.lastOrNull()
 		val result = window?.mouseClicked(Point(mouseX, mouseY), MouseButton.fromMC(button))
-		when (result) {
-			true ->
+		return if (result == true) {
 			RenderHelper.playSound(SoundEvents.UI_BUTTON_CLICK)
-			false ->
-				if (windows.size > 1) {
-					removeWindow(windows.last())
+			true
+		} else {
+			false
 		}
 	}
 
-		return result == true
-	}
-
 }

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

@@ -86,7 +86,7 @@ class Window {
 	 * Creates the internal constraints used by the window.
 	 * If overridden, the super-class method must be called.
 	 */
-	protected open fun createInternalConstraints() {
+	protected fun createInternalConstraints() {
 		solver.dsl {
 			leftAnchor equalTo 0
 			topAnchor equalTo 0
@@ -195,6 +195,11 @@ class Window {
 		if (view != null) {
 			val pointInView = Point(point.x - view.frame.left, point.y - view.frame.top)
 			return view.mouseClicked(pointInView, mouseButton)
+		} else {
+			// remove the window from the screen when the mouse clicks outside the window and this is not the primary window
+			if (screen.windows.size > 1) {
+				removeFromScreen()
+			}
 		}
 		return false
 	}

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

@@ -0,0 +1,115 @@
+package net.shadowfacts.cacao.view
+
+import net.minecraft.ChatFormat
+import net.shadowfacts.cacao.Window
+import net.shadowfacts.cacao.geometry.Axis
+import net.shadowfacts.cacao.util.Color
+import net.shadowfacts.cacao.util.texture.NinePatchTexture
+import net.shadowfacts.cacao.util.texture.Texture
+import net.shadowfacts.cacao.view.button.Button
+import net.shadowfacts.kiwidsl.dsl
+
+/**
+ * @author shadowfacts
+ */
+class DialogView(
+		val title: String,
+		val message: String,
+		val buttonTypes: Array<ButtonType>,
+		val iconTexture: Texture?,
+		val buttonCallback: (ButtonType, Window) -> Unit
+): View() {
+
+	interface ButtonType {
+		val localizedName: String
+	}
+
+	enum class DefaultButtonType: ButtonType {
+		CANCEL, CONFIRM, OK, CLOSE;
+
+		override val localizedName: String
+			get() = name.toLowerCase().capitalize() // todo: actually localize me
+	}
+
+	private lateinit var background: NinePatchView
+	private lateinit var hStack: StackView
+	private var iconView: TextureView? = null
+	private lateinit var vStack: StackView
+	private lateinit var messageLabel: Label
+	private var buttonContainer: View? = null
+	private var buttonStack: StackView? = null
+
+	override fun wasAdded() {
+		background = addSubview(NinePatchView(NinePatchTexture.PANEL_BG).apply { zIndex = -1.0 })
+
+		hStack = addSubview(StackView(Axis.HORIZONTAL, StackView.Distribution.LEADING, spacing = 8.0))
+
+		if (iconTexture != null) {
+			iconView = hStack.addArrangedSubview(TextureView(iconTexture))
+		}
+
+		vStack = hStack.addArrangedSubview(StackView(Axis.VERTICAL, spacing = 4.0))
+
+		vStack.addArrangedSubview(Label(ChatFormat.BOLD.toString() + title, shadow = false).apply {
+			textColor = Color(0x404040)
+		})
+		messageLabel = vStack.addArrangedSubview(Label(message, shadow = false).apply {
+			textColor = Color(0x404040)
+		})
+
+		if (buttonTypes.isNotEmpty()) {
+			buttonContainer = vStack.addArrangedSubview(View())
+			buttonStack = buttonContainer!!.addSubview(StackView(Axis.HORIZONTAL))
+			for (type in buttonTypes) {
+				buttonStack!!.addArrangedSubview(Button(Label(type.localizedName)).apply {
+					handler = {
+						this@DialogView.buttonCallback(type, this@DialogView.window)
+					}
+				})
+			}
+		}
+
+		super.wasAdded()
+	}
+
+	override fun createInternalConstraints() {
+		super.createInternalConstraints()
+
+		solver.dsl {
+			centerXAnchor equalTo window.centerXAnchor
+			centerYAnchor equalTo window.centerYAnchor
+
+			widthAnchor greaterThanOrEqualTo 175
+
+			background.leftAnchor equalTo leftAnchor - 8
+			background.rightAnchor equalTo rightAnchor + 8
+			background.topAnchor equalTo topAnchor - 8
+			background.bottomAnchor equalTo bottomAnchor + 8
+
+			hStack.leftAnchor equalTo leftAnchor
+			hStack.rightAnchor equalTo rightAnchor
+			hStack.topAnchor equalTo topAnchor
+			hStack.bottomAnchor equalTo bottomAnchor
+
+			if (iconView != null) {
+				hStack.bottomAnchor greaterThanOrEqualTo iconView!!.bottomAnchor
+			}
+			hStack.bottomAnchor greaterThanOrEqualTo vStack.bottomAnchor
+
+			if (iconView != null) {
+				iconView!!.widthAnchor equalTo 30
+				iconView!!.heightAnchor equalTo 30
+			}
+
+			messageLabel.heightAnchor greaterThanOrEqualTo 50
+
+			if (buttonContainer != null) {
+				buttonStack!!.heightAnchor equalTo buttonContainer!!.heightAnchor
+				buttonStack!!.centerYAnchor equalTo buttonContainer!!.centerYAnchor
+
+				buttonStack!!.rightAnchor equalTo buttonContainer!!.rightAnchor
+			}
+		}
+	}
+
+}

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

@@ -13,14 +13,29 @@ import net.shadowfacts.cacao.util.RenderHelper
  *
  * @author shadowfacts
  * @param text The text of this label.
+ * @param shadow Whether the text should be rendered with a shadow or not.
+ * @param maxLines The maximum number of lines of text to render.
+ * 					`0` means that there is no line limit and all lines will be rendered.
+ * 					When using a non-zero [maxLines] value, the [intrinsicContentSize] of the Label still assumes all
+ * 					content on one line. So, constraints must be provided to calculate the actual width to use for line
+ * 					wrapping.
  */
-class Label(text: String): View() {
+class Label(
+		text: String,
+		val shadow: Boolean = true,
+		val maxLines: Int = 0,
+		val wrappingMode: WrappingMode = WrappingMode.WRAP
+): View() {
 
 	companion object {
 		private val textRenderer: TextRenderer
 			get() = MinecraftClient.getInstance().textRenderer
 	}
 
+	enum class WrappingMode {
+		WRAP, NO_WRAP
+	}
+
 	/**
 	 * The text of this label. Mutating this field will update the intrinsic content size and trigger a layout.
 	 */
@@ -28,9 +43,20 @@ class Label(text: String): View() {
 		set(value) {
 			field = value
 			updateIntrinsicContentSize()
+			window.layout()
 		}
+	private lateinit var lines: List<String>
 
 	var textColor = Color.WHITE
+		set(value) {
+			field = value
+			textColorARGB = value.argb
+		}
+	private var textColorARGB: Int = textColor.argb
+
+	private val drawFunc by lazy {
+		if (shadow) textRenderer::drawWithShadow else textRenderer::draw
+	}
 
 	override fun wasAdded() {
 		super.wasAdded()
@@ -47,7 +73,38 @@ class Label(text: String): View() {
 	}
 
 	override fun drawContent(mouse: Point, delta: Float) {
-		textRenderer.draw(text, 0f, 0f, textColor.argb)
+		if (!this::lines.isInitialized) {
+			computeLines()
+		}
+
+		for (i in 0 until lines.size) {
+			val y = i * textRenderer.fontHeight
+			drawFunc(lines[i], 0f, y.toFloat(), textColorARGB)
+		}
+	}
+
+	override fun didLayout() {
+		super.didLayout()
+
+		computeLines()
+	}
+
+	private fun computeLines() {
+		var lines = text.split("\n")
+		if (wrappingMode == WrappingMode.WRAP) {
+			lines = lines.flatMap {
+				wrapStringToWidthAsList(it, bounds.width)
+			}
+		}
+		if (0 < maxLines && maxLines < lines.size) {
+			lines = lines.dropLast(lines.size - maxLines)
+		}
+		this.lines = lines
+	}
+
+	private fun wrapStringToWidthAsList(string: String, width: Double): List<String> {
+		if (RenderHelper.disabled) return listOf(string)
+		return textRenderer.wrapStringToWidthAsList(string, width.toInt())
 	}
 
 }

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

@@ -19,7 +19,11 @@ import java.util.*
  * @param distribution The mode by which this stack lays out its children along the axis perpendicular to the
  * 						primary [axis].
  */
-class StackView(val axis: Axis, val distribution: Distribution = Distribution.FILL): View() {
+class StackView(
+		val axis: Axis,
+		val distribution: Distribution = Distribution.FILL,
+		val spacing: Double = 0.0
+): View() {
 
 	// the internal mutable, list of arranged subviews
 	private val _arrangedSubviews = LinkedList<View>()
@@ -75,10 +79,10 @@ class StackView(val axis: Axis, val distribution: Distribution = Distribution.FI
 				val previous = arrangedSubviews.getOrNull(index - 1)
 				val next = arrangedSubviews.getOrNull(index + 1)
 				if (next != null) {
-					arrangedSubviewConnections.add(index, anchor(TRAILING, view) equalTo anchor(LEADING, next))
+					arrangedSubviewConnections.add(index, anchor(TRAILING, view) equalTo (anchor(LEADING, next) + spacing))
 				}
 				if (previous != null) {
-					arrangedSubviewConnections.add(index - 1, anchor(TRAILING, previous) equalTo anchor(LEADING, view))
+					arrangedSubviewConnections.add(index - 1, anchor(TRAILING, previous) equalTo (anchor(LEADING, view) - spacing))
 				}
 			}
 		}

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

@@ -92,7 +92,7 @@ class DropdownButton<Value, ContentView: View>(
 		val dropdownBackground = dropdownWindow.addView(NinePatchView(NinePatchTexture.BUTTON_BG).apply {
 			zIndex = -1.0
 		})
-		val stack = dropdownWindow.addView(StackView(Axis.VERTICAL, StackView.Distribution.LEADING))
+		val stack = dropdownWindow.addView(StackView(Axis.VERTICAL, StackView.Distribution.FILL))
 		lateinit var selectedButton: View
 		val buttons = mutableListOf<Button>()
 		val last = allValues.count() - 1
@@ -113,7 +113,9 @@ class DropdownButton<Value, ContentView: View>(
 			}
 			buttons.add(button)
 			dropdownWindow.solver.dsl {
-				stack.widthAnchor greaterThanOrEqualTo button.widthAnchor
+				if (button.content.intrinsicContentSize != null) {
+					button.widthAnchor greaterThanOrEqualTo button.content.intrinsicContentSize!!.width + 2 * button.padding
+				}
 			}
 		}
 		dropdownWindow.solver.dsl {
@@ -128,12 +130,6 @@ class DropdownButton<Value, ContentView: View>(
 			dropdownBackground.bottomAnchor equalTo stack.bottomAnchor
 		}
 		dropdownWindow.layout()
-		dropdownWindow.solver.dsl {
-			buttons.forEach {
-				it.widthAnchor equalTo stack.frame.width
-			}
-		}
-		dropdownWindow.layout()
 	}
 
 	private fun valueSelected(value: Value) {

src/test/kotlin/net/shadowfacts/cacao/view/StackViewLayoutTests.kt

@@ -191,4 +191,57 @@ class StackViewLayoutTests {
 		assertEquals(100.0, three.rightAnchor.value)
 	}
 
+	@Test
+	fun testVerticalLayoutWithSpacing() {
+		val stack = window.addView(StackView(Axis.VERTICAL, spacing = 10.0))
+		val one = stack.addArrangedSubview(View().apply {
+			intrinsicContentSize = Size(50.0, 50.0)
+		})
+		val two = stack.addArrangedSubview(View().apply {
+			intrinsicContentSize = Size(75.0, 75.0)
+		})
+		val three = stack.addArrangedSubview(View().apply {
+			intrinsicContentSize = Size(50.0, 50.0)
+		})
+		window.solver.dsl {
+			stack.topAnchor equalTo 0
+		}
+		window.layout()
+
+		assertEquals(0.0, abs(one.topAnchor.value)) // sometimes -0.0, which fails the assertion but is actually ok
+		assertEquals(50.0, one.bottomAnchor.value)
+		assertEquals(60.0, two.topAnchor.value)
+		assertEquals(135.0, two.bottomAnchor.value)
+		assertEquals(145.0, three.topAnchor.value)
+		assertEquals(195.0, three.bottomAnchor.value)
+
+		assertEquals(195.0, stack.heightAnchor.value)
+	}
+
+	@Test
+	fun testHorizontalLayoutWithSpacing() {
+		val stack = window.addView(StackView(Axis.HORIZONTAL, spacing = 10.0))
+		val one = stack.addArrangedSubview(View().apply {
+			intrinsicContentSize = Size(50.0, 50.0)
+		})
+		val two = stack.addArrangedSubview(View().apply {
+			intrinsicContentSize = Size(75.0, 75.0)
+		})
+		val three = stack.addArrangedSubview(View().apply {
+			intrinsicContentSize = Size(50.0, 50.0)
+		})
+		window.solver.dsl {
+			stack.leftAnchor equalTo 0
+		}
+		window.layout()
+
+		assertEquals(0.0, abs(one.leftAnchor.value)) // sometimes -0.0, which fails the assertion but is actually ok
+		assertEquals(50.0, one.rightAnchor.value)
+		assertEquals(60.0, two.leftAnchor.value)
+		assertEquals(135.0, two.rightAnchor.value)
+		assertEquals(145.0, three.leftAnchor.value)
+		assertEquals(195.0, three.rightAnchor.value)
+
+		assertEquals(195.0, stack.widthAnchor.value)
+	}
 }

src/test/kotlin/net/shadowfacts/cacao/view/ViewClickTests.kt

@@ -1,5 +1,6 @@
 package net.shadowfacts.cacao.view
 
+import net.shadowfacts.cacao.CacaoScreen
 import net.shadowfacts.cacao.Window
 import net.shadowfacts.cacao.geometry.Point
 import net.shadowfacts.cacao.geometry.Rect
@@ -14,11 +15,13 @@ import java.util.concurrent.CompletableFuture
  */
 class ViewClickTests {
 
+	lateinit var screen: CacaoScreen
 	lateinit var window: Window
 
 	@BeforeEach
 	fun setup() {
-		window = Window()
+		screen = CacaoScreen()
+		window = screen.addWindow(Window())
 	}
 
 	@Test

src/test/kotlin/net/shadowfacts/cacao/view/button/ButtonClickTests.kt

@@ -1,5 +1,6 @@
 package net.shadowfacts.cacao.view.button
 
+import net.shadowfacts.cacao.CacaoScreen
 import net.shadowfacts.cacao.Window
 import net.shadowfacts.cacao.geometry.Point
 import net.shadowfacts.cacao.geometry.Size
@@ -17,11 +18,13 @@ import java.util.concurrent.CompletableFuture
  */
 class ButtonClickTests {
 
+	lateinit var screen: CacaoScreen
 	lateinit var window: Window
 
 	@BeforeEach
 	fun setup() {
-		window = Window()
+		screen = CacaoScreen()
+		window = screen.addWindow(Window())
 	}
 
 	@Test

src/test/kotlin/net/shadowfacts/cacao/view/button/EnumButtonTests.kt

@@ -1,5 +1,6 @@
 package net.shadowfacts.cacao.view.button
 
+import net.shadowfacts.cacao.CacaoScreen
 import net.shadowfacts.cacao.Window
 import net.shadowfacts.cacao.geometry.Point
 import net.shadowfacts.cacao.geometry.Rect
@@ -28,11 +29,13 @@ class EnumButtonTests {
 		ONE, TWO, THREE
 	}
 
+	lateinit var screen: CacaoScreen
 	lateinit var window: Window
 
 	@BeforeEach
 	fun setup() {
-		window = Window()
+		screen = CacaoScreen()
+		window = screen.addWindow(Window())
 	}
 
 	@Test