Added Menus and cursor visibility management

- Layers now have a CursorPolicy
  - Used to enable/disable cursor based on top layer
- Added a default menu layer implementation

src/main/java/ru/windcorp/progressia/client/graphics/GUI.java

@@ -24,6 +24,7 @@ import java.util.List;
 
 import com.google.common.eventbus.Subscribe;
 
+import ru.windcorp.progressia.client.graphics.backend.GraphicsInterface;
 import ru.windcorp.progressia.client.graphics.input.CursorEvent;
 import ru.windcorp.progressia.client.graphics.input.FrameResizeEvent;
 import ru.windcorp.progressia.client.graphics.input.InputEvent;
@@ -57,15 +58,24 @@ public class GUI {
 	}
 
 	public static void addBottomLayer(Layer layer) {
-		modify(layers -> layers.add(layer));
+		modify(layers -> {
+			layers.add(layer);
+			layer.onAdded();
+		});
 	}
 
 	public static void addTopLayer(Layer layer) {
-		modify(layers -> layers.add(0, layer));
+		modify(layers -> {
+			layers.add(0, layer);
+			layer.onAdded();
+		});
 	}
 
 	public static void removeLayer(Layer layer) {
-		modify(layers -> layers.remove(layer));
+		modify(layers -> {
+			layers.remove(layer);
+			layer.onRemoved();
+		});
 	}
 
 	private static void modify(LayerStackModification mod) {
@@ -78,12 +88,33 @@ public class GUI {
 
 	public static void render() {
 		synchronized (LAYERS) {
-			MODIFICATION_QUEUE.forEach(action -> action.affect(LAYERS));
-			MODIFICATION_QUEUE.clear();
+			
+			if (!MODIFICATION_QUEUE.isEmpty()) {
+				MODIFICATION_QUEUE.forEach(action -> action.affect(LAYERS));
+				MODIFICATION_QUEUE.clear();
+				
+				boolean isMouseCurrentlyCaptured = GraphicsInterface.isMouseCaptured();
+				Layer.CursorPolicy policy = Layer.CursorPolicy.REQUIRE;
+				
+				for (Layer layer : LAYERS) {
+					Layer.CursorPolicy currentPolicy = layer.getCursorPolicy();
+					
+					if (currentPolicy != Layer.CursorPolicy.INDIFFERENT) {
+						policy = currentPolicy;
+						break;
+					}
+				}
+				
+				boolean shouldCaptureMouse = (policy == Layer.CursorPolicy.FORBID);
+				if (shouldCaptureMouse != isMouseCurrentlyCaptured) {
+					GraphicsInterface.setMouseCaptured(shouldCaptureMouse);
+				}
+			}
 			
 			for (int i = LAYERS.size() - 1; i >= 0; --i) {
 				LAYERS.get(i).render();
 			}
+			
 		}
 	}
 

src/main/java/ru/windcorp/progressia/client/graphics/Layer.java

@@ -31,15 +31,52 @@ public abstract class Layer {
 
 	private final AtomicBoolean isValid = new AtomicBoolean(false);
 	
+	/**
+	 * Represents various requests that a {@link Layer} can make regarding the
+	 * presence of a visible cursor. The value of the highest layer that is not
+	 * {@link #INDIFFERENT} is used.
+	 */
+	public static enum CursorPolicy {
+		/**
+		 * Require that a cursor is visible.
+		 */
+		REQUIRE,
+
+		/**
+		 * The {@link Layer} should not affect the presence or absence of a
+		 * visible cursor; lower layers should be consulted.
+		 */
+		INDIFFERENT,
+
+		/**
+		 * Forbid a visible cursor.
+		 */
+		FORBID
+	}
+	
+	private CursorPolicy cursorPolicy = CursorPolicy.INDIFFERENT;
+
 	public Layer(String name) {
 		this.name = name;
 	}
 	
+	public String getName() {
+		return name;
+	}
+
 	@Override
 	public String toString() {
 		return "Layer " + name;
 	}
 	
+	public CursorPolicy getCursorPolicy() {
+		return cursorPolicy;
+	}
+	
+	public void setCursorPolicy(CursorPolicy cursorPolicy) {
+		this.cursorPolicy = cursorPolicy;
+	}
+
 	void render() {
 		GraphicsInterface.startNextLayer();
 
@@ -79,4 +116,12 @@ public abstract class Layer {
 		return GraphicsInterface.getFrameHeight();
 	}
 	
+	protected void onAdded() {
+		// Do nothing
+	}
+	
+	protected void onRemoved() {
+		// Do nothing
+	}
+
 }

src/main/java/ru/windcorp/progressia/client/graphics/backend/GraphicsBackend.java

@@ -192,4 +192,18 @@ public class GraphicsBackend {
 		GLFWVidMode vidmode = glfwGetVideoMode(glfwGetPrimaryMonitor());
 		return vidmode.refreshRate();
 	}
+	
+	public static boolean isMouseCaptured() {
+		return glfwGetInputMode(windowHandle, GLFW_CURSOR) == GLFW_CURSOR_DISABLED;
+	}
+	
+	public static void setMouseCaptured(boolean capture) {
+		int mode = capture ? GLFW_CURSOR_DISABLED : GLFW_CURSOR_NORMAL;
+		glfwSetInputMode(windowHandle, GLFW_CURSOR, mode);
+		
+		if (!capture) {
+			glfwSetCursorPos(windowHandle, FRAME_SIZE.x / 2.0, FRAME_SIZE.y / 2.0);
+		}
+	}
+	
 }

src/main/java/ru/windcorp/progressia/client/graphics/backend/GraphicsInterface.java

@@ -82,4 +82,12 @@ public class GraphicsInterface {
 		GraphicsBackend.setVSyncEnabled(GraphicsBackend.isVSyncEnabled());
 	}
 	
+	public static boolean isMouseCaptured() {
+		return GraphicsBackend.isMouseCaptured();
+	}
+	
+	public static void setMouseCaptured(boolean capture) {
+		GraphicsBackend.setMouseCaptured(capture);
+	}
+
 }

src/main/java/ru/windcorp/progressia/client/graphics/backend/LWJGLInitializer.java

@@ -65,8 +65,6 @@ class LWJGLInitializer {
 
 		GraphicsBackend.setWindowHandle(handle);
 
-		glfwSetInputMode(handle, GLFW_CURSOR, GLFW_CURSOR_DISABLED);
-
 		glfwMakeContextCurrent(handle);
 		glfwSwapInterval(0);	// TODO: remove after config system is added
 	}

src/main/java/ru/windcorp/progressia/client/graphics/gui/Panel.java

@@ -17,19 +17,64 @@
  */
 package ru.windcorp.progressia.client.graphics.gui;
 
+import java.util.Objects;
+
+import glm.vec._4.Vec4;
 import ru.windcorp.progressia.client.graphics.Colors;
 import ru.windcorp.progressia.client.graphics.flat.RenderTarget;
 
 public class Panel extends Group {
 
-	public Panel(String name, Layout layout) {
+	private Vec4 fill;
+	private Vec4 border;
+
+	public Panel(String name, Layout layout, Vec4 fill, Vec4 border) {
 		super(name, layout);
+		
+		this.fill = Objects.requireNonNull(fill, "fill");
+		this.border = border;
+	}
+	
+	public Panel(String name, Layout layout) {
+		this(name, layout, Colors.WHITE, Colors.LIGHT_GRAY);
+	}
+	
+	/**
+	 * @return the fill
+	 */
+	public Vec4 getFill() {
+		return fill;
+	}
+	
+	/**
+	 * @param fill the fill to set
+	 */
+	public void setFill(Vec4 fill) {
+		this.fill = Objects.requireNonNull(fill, "fill");
+	}
+	
+	/**
+	 * @return the border
+	 */
+	public Vec4 getBorder() {
+		return border;
+	}
+	
+	/**
+	 * @param border the border to set
+	 */
+	public void setBorder(Vec4 border) {
+		this.border = border;
 	}
 	
 	@Override
 	protected void assembleSelf(RenderTarget target) {
-		target.fill(getX(), getY(), getWidth(), getHeight(), Colors.LIGHT_GRAY);
-		target.fill(getX() + 2, getY() + 2, getWidth() - 4, getHeight() - 4, Colors.WHITE);
+		if (border == null) {
+			target.fill(getX(), getY(), getWidth(), getHeight(), fill);
+		} else {
+			target.fill(getX(), getY(), getWidth(), getHeight(), border);
+			target.fill(getX() + 2, getY() + 2, getWidth() - 4, getHeight() - 4, fill);
+		}
 	}
 
 }

src/main/java/ru/windcorp/progressia/client/graphics/gui/layout/LayoutFill.java

@@ -0,0 +1,78 @@
+/*
+ * Progressia
+ * Copyright (C)  2020-2021  Wind Corporation and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+ 
+package ru.windcorp.progressia.client.graphics.gui.layout;
+
+import static java.lang.Math.max;
+
+import glm.vec._2.i.Vec2i;
+import ru.windcorp.progressia.client.graphics.gui.Component;
+import ru.windcorp.progressia.client.graphics.gui.Layout;
+
+public class LayoutFill implements Layout {
+
+	private final int margin;
+	
+	public LayoutFill(int margin) {
+		this.margin = margin;
+	}
+
+	public LayoutFill() {
+		this(0);
+	}
+
+	@Override
+	public void layout(Component c) {
+		c.getChildren().forEach(child -> {
+
+			int cWidth = c.getWidth() - 2 * margin;
+			int cHeight = c.getHeight() - 2 * margin;
+
+			child.setBounds(
+				c.getX() + margin,
+				c.getY() + margin,
+				cWidth,
+				cHeight
+			);
+
+		});
+	}
+
+	@Override
+	public Vec2i calculatePreferredSize(Component c) {
+		Vec2i result = new Vec2i(0, 0);
+
+		c.getChildren().stream()
+			.map(child -> child.getPreferredSize())
+			.forEach(size -> {
+				result.x = max(size.x, result.x);
+				result.y = max(size.y, result.y);
+			});
+
+		result.x += 2 * margin;
+		result.y += 2 * margin;
+
+		return result;
+	}
+
+	@Override
+	public String toString() {
+		return getClass().getSimpleName() + "(" + margin + ")";
+	}
+
+}

src/main/java/ru/windcorp/progressia/client/graphics/gui/menu/MenuLayer.java

@@ -0,0 +1,117 @@
+/*
+ * Progressia
+ * Copyright (C)  2020-2021  Wind Corporation and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package ru.windcorp.progressia.client.graphics.gui.menu;
+
+import org.lwjgl.glfw.GLFW;
+
+import glm.vec._2.i.Vec2i;
+import ru.windcorp.progressia.client.graphics.Colors;
+import ru.windcorp.progressia.client.graphics.GUI;
+import ru.windcorp.progressia.client.graphics.font.Font;
+import ru.windcorp.progressia.client.graphics.gui.Component;
+import ru.windcorp.progressia.client.graphics.gui.GUILayer;
+import ru.windcorp.progressia.client.graphics.gui.Label;
+import ru.windcorp.progressia.client.graphics.gui.Layout;
+import ru.windcorp.progressia.client.graphics.gui.Panel;
+import ru.windcorp.progressia.client.graphics.gui.layout.LayoutAlign;
+import ru.windcorp.progressia.client.graphics.gui.layout.LayoutFill;
+import ru.windcorp.progressia.client.graphics.gui.layout.LayoutVertical;
+import ru.windcorp.progressia.client.graphics.input.InputEvent;
+import ru.windcorp.progressia.client.graphics.input.KeyEvent;
+import ru.windcorp.progressia.client.graphics.input.bus.Input;
+import ru.windcorp.progressia.client.localization.MutableString;
+import ru.windcorp.progressia.client.localization.MutableStringLocalized;
+
+public class MenuLayer extends GUILayer {
+
+	private final Component content;
+	private final Component background;
+	
+	private final Runnable closeAction = () -> {
+		GUI.removeLayer(this);
+	};
+	
+	public MenuLayer(String name, Component content) {
+		super(name, new LayoutFill(0));
+		
+		setCursorPolicy(CursorPolicy.REQUIRE);
+		
+		this.background = new Panel(name + ".Background", new LayoutAlign(10), Colors.toVector(0x66000000), null);
+		this.content = content;
+		
+		background.addChild(content);
+		getRoot().addChild(background);
+	}
+	
+	public MenuLayer(String name, Layout contentLayout) {
+		this(name, new Panel(name + ".Content", contentLayout));
+	}
+	
+	public MenuLayer(String name) {
+		this(name, new LayoutVertical(20, 10));
+	}
+	
+	public Component getContent() {
+		return content;
+	}
+	
+	public Component getBackground() {
+		return background;
+	}
+	
+	protected void addTitle() {
+		String translationKey = "Layer" + getName() + ".Title";
+		MutableString titleText = new MutableStringLocalized(translationKey);
+		Font titleFont = new Font().deriveBold().withColor(Colors.BLACK).withAlign(0.5f);
+		
+		Label label = new Label(getName() + ".Title", titleFont, titleText);
+		getContent().addChild(label);
+		
+		Panel panel = new Panel(getName() + ".Title.Underscore", null, Colors.BLUE, null);
+		panel.setLayout(new LayoutFill() {
+			@Override
+			public Vec2i calculatePreferredSize(Component c) {
+				return new Vec2i(label.getPreferredSize().x + 40, 4);
+			}
+		});
+		getContent().addChild(panel);
+	}
+	
+	protected Runnable getCloseAction() {
+		return closeAction;
+	}
+	
+	@Override
+	protected void handleInput(Input input) {
+		
+		if (!input.isConsumed()) {
+			InputEvent event = input.getEvent();
+			
+			if (event instanceof KeyEvent) {
+				KeyEvent keyEvent = (KeyEvent) event;
+				if (keyEvent.isPress() && keyEvent.getKey() == GLFW.GLFW_KEY_ESCAPE) {
+					getCloseAction().run();
+				}
+			}
+		}
+		
+		super.handleInput(input);
+		input.consume();
+	}
+	
+}

src/main/java/ru/windcorp/progressia/client/graphics/world/LayerWorld.java

@@ -57,6 +57,8 @@ public class LayerWorld extends Layer {
 		super("World");
 		this.client = client;
 		this.inputBasedControls = new InputBasedControls(client);
+		
+		setCursorPolicy(CursorPolicy.FORBID);
 	}
 
 	@Override

src/main/java/ru/windcorp/progressia/test/LayerButtonTest.java

@@ -17,47 +17,29 @@
  */
 package ru.windcorp.progressia.test;
 
-import org.lwjgl.glfw.GLFW;
-
 import ru.windcorp.progressia.client.graphics.Colors;
-import ru.windcorp.progressia.client.graphics.GUI;
-import ru.windcorp.progressia.client.graphics.backend.GraphicsBackend;
-import ru.windcorp.progressia.client.graphics.flat.RenderTarget;
+import ru.windcorp.progressia.client.graphics.font.Font;
 import ru.windcorp.progressia.client.graphics.gui.Button;
 import ru.windcorp.progressia.client.graphics.gui.Checkbox;
-import ru.windcorp.progressia.client.graphics.gui.GUILayer;
-import ru.windcorp.progressia.client.graphics.gui.Group;
-import ru.windcorp.progressia.client.graphics.gui.Panel;
+import ru.windcorp.progressia.client.graphics.gui.Label;
 import ru.windcorp.progressia.client.graphics.gui.RadioButton;
 import ru.windcorp.progressia.client.graphics.gui.RadioButtonGroup;
-import ru.windcorp.progressia.client.graphics.gui.layout.LayoutAlign;
-import ru.windcorp.progressia.client.graphics.gui.layout.LayoutBorderHorizontal;
-import ru.windcorp.progressia.client.graphics.gui.layout.LayoutVertical;
-import ru.windcorp.progressia.client.graphics.input.InputEvent;
-import ru.windcorp.progressia.client.graphics.input.KeyEvent;
-import ru.windcorp.progressia.client.graphics.input.bus.Input;
+import ru.windcorp.progressia.client.graphics.gui.menu.MenuLayer;
 
-public class LayerButtonTest extends GUILayer {
+public class LayerButtonTest extends MenuLayer {
 
 	public LayerButtonTest() {
-		super("LayerButtonTest", new LayoutBorderHorizontal(0));
+		super("ButtonTest");
 		
-		Group background = new Group("Background", new LayoutAlign(10)) {
-			@Override
-			protected void assembleSelf(RenderTarget target) {
-				target.fill(Colors.toVector(0x88FFFFFF));
-			}
-		};
-		
-		Panel panel = new Panel("Panel", new LayoutVertical(10));
+		addTitle();
 		
 		Button blockableButton;
-		panel.addChild((blockableButton = new Button("BlockableButton", "Blockable")).addAction(b -> {
+		getContent().addChild((blockableButton = new Button("BlockableButton", "Blockable")).addAction(b -> {
 			System.out.println("Button Blockable!");
 		}));
 		blockableButton.setEnabled(false);
 		
-		panel.addChild(new Checkbox("EnableButton", "Enable").addAction(b -> {
+		getContent().addChild(new Checkbox("EnableButton", "Enable").addAction(b -> {
 			blockableButton.setEnabled(((Checkbox) b).isChecked());
 		}));
 		
@@ -65,35 +47,24 @@ public class LayerButtonTest extends GUILayer {
 			System.out.println("RBG! " + g.getSelected().getLabel().getCurrentText());
 		});
 		
-		panel.addChild(new RadioButton("RB1", "Moon").setGroup(group));
-		panel.addChild(new RadioButton("RB2", "Type").setGroup(group));
-		panel.addChild(new RadioButton("RB3", "Ice").setGroup(group));
-		panel.addChild(new RadioButton("RB4", "Cream").setGroup(group));
+		getContent().addChild(new RadioButton("RB1", "Moon").setGroup(group));
+		getContent().addChild(new RadioButton("RB2", "Type").setGroup(group));
+		getContent().addChild(new RadioButton("RB3", "Ice").setGroup(group));
+		getContent().addChild(new RadioButton("RB4", "Cream").setGroup(group));
 		
-		panel.getChild(panel.getChildren().size() - 1).setEnabled(false);
+		getContent().getChild(getContent().getChildren().size() - 1).setEnabled(false);
 		
-		panel.getChild(1).takeFocus();
+		getContent().addChild(new Label("Hint", new Font().withColor(Colors.LIGHT_GRAY), "This is a MenuLayer"));
 		
-		background.addChild(panel);
-		getRoot().addChild(background.setLayoutHint(LayoutBorderHorizontal.CENTER));
-	}
+		getContent().addChild(new Button("Continue", "Continue").addAction(b -> {
+			getCloseAction().run();
+		}));
 		
-	@Override
-	protected void handleInput(Input input) {
+		getContent().addChild(new Button("Quit", "Quit").addAction(b -> {
+			System.exit(0);
+		}));
 		
-		if (!input.isConsumed()) {
-			
-			InputEvent e = input.getEvent();
-			
-			if ((e instanceof KeyEvent) && ((KeyEvent) e).isPress() && ((KeyEvent) e).getKey() == GLFW.GLFW_KEY_ESCAPE) {
-				GUI.removeLayer(this);
-				GLFW.glfwSetInputMode(GraphicsBackend.getWindowHandle(), GLFW.GLFW_CURSOR, GLFW.GLFW_CURSOR_DISABLED);
-			}
-			
-		}
-		
-		super.handleInput(input);
-		input.consume();
+		getContent().takeFocus();
 	}
 
 }

src/main/java/ru/windcorp/progressia/test/LayerTestGUI.java

@@ -73,14 +73,6 @@ public class LayerTestGUI extends GUILayer {
 			)
 		);
 
-		group.addChild(
-			new Label(
-				"IsMouseCapturedDisplay",
-				font,
-				tmp_dynFormat("LayerTestGUI.IsMouseCapturedDisplay", tpc::isMouseCaptured)
-			)
-		);
-
 		group.addChild(
 			new Label(
 				"CameraModeDisplay",

src/main/java/ru/windcorp/progressia/test/TestPlayerControls.java

@@ -82,7 +82,6 @@ public class TestPlayerControls {
 	private double lastSpacePress = Double.NEGATIVE_INFINITY;
 	private double lastSprintPress = Double.NEGATIVE_INFINITY;
 
-	private boolean captureMouse = true;
 	private boolean useMinecraftGravity = false;
 
 	private int selectedBlock = 0;
@@ -294,21 +293,10 @@ public class TestPlayerControls {
 	}
 
 	private void handleEscape() {
-//		if (captureMouse) {
-//			GLFW.glfwSetInputMode(GraphicsBackend.getWindowHandle(), GLFW.GLFW_CURSOR, GLFW.GLFW_CURSOR_NORMAL);
-//		} else {
-//			GLFW.glfwSetInputMode(GraphicsBackend.getWindowHandle(), GLFW.GLFW_CURSOR, GLFW.GLFW_CURSOR_DISABLED);
-//		}
-//
-//		captureMouse = !captureMouse;
-
 		movementForward = 0;
 		movementRight = 0;
 		movementUp = 0;
-		GLFW.glfwSetInputMode(GraphicsBackend.getWindowHandle(), GLFW.GLFW_CURSOR, GLFW.GLFW_CURSOR_NORMAL);
 		GUI.addTopLayer(new LayerButtonTest());
-		
-		updateGUI();
 	}
 
 	private void handleDebugLayerSwitch() {
@@ -352,9 +340,6 @@ public class TestPlayerControls {
 	}
 
 	private void onMouseMoved(CursorMoveEvent event) {
-		if (!captureMouse)
-			return;
-
 		if (ClientState.getInstance() == null || !ClientState.getInstance().isReady()) {
 			return;
 		}
@@ -445,10 +430,6 @@ public class TestPlayerControls {
 		return isSprinting;
 	}
 
-	public boolean isMouseCaptured() {
-		return captureMouse;
-	}
-
 	public boolean useMinecraftGravity() {
 		return useMinecraftGravity;
 	}

src/main/resources/assets/languages/en-US.lang

@@ -6,7 +6,6 @@ LayerAbout.DebugHint = Debug GUI: F3
 
 LayerTestGUI.IsFlyingDisplay = Flying:         %5s (Space bar x2)
 LayerTestGUI.IsSprintingDisplay = Sprinting:      %5s (W x2)
-LayerTestGUI.IsMouseCapturedDisplay = Mouse captured: %5s (Esc)
 LayerTestGUI.CameraModeDisplay = Camera mode:    %5d (F5)
 LayerTestGUI.GravityModeDisplay = Gravity:    %9s (G)
 LayerTestGUI.LanguageDisplay = Language:       %5s (L)
@@ -22,3 +21,5 @@ LayerTestGUI.SelectedTileDisplay = %s Tile:  %s
 LayerTestGUI.PlacementModeHint = (Blocks %s Tiles: Ctrl + Mouse Wheel)
 LayerTestGUI.IsFullscreen = Fullscreen:     %5s (F11)
 LayerTestGUI.IsVSync = VSync:          %5s (F12)
+
+LayerButtonTest.Title = Button Test

src/main/resources/assets/languages/ru-RU.lang

@@ -6,7 +6,6 @@ LayerAbout.DebugHint = Отладочный GUI: F3
 
 LayerTestGUI.IsFlyingDisplay = Полёт:          %5s (Пробел x2)
 LayerTestGUI.IsSprintingDisplay = Бег:            %5s (W x2)
-LayerTestGUI.IsMouseCapturedDisplay = Захват мыши:    %5s (Esc)
 LayerTestGUI.CameraModeDisplay = Камера:         %5d (F5)
 LayerTestGUI.GravityModeDisplay = Гравитация: %9s (G)
 LayerTestGUI.LanguageDisplay = Язык:           %5s (L)
@@ -22,3 +21,5 @@ LayerTestGUI.SelectedTileDisplay = %s Плитка: %s
 LayerTestGUI.PlacementModeHint = (Блок %s плитки: Ctrl + прокрутка)
 LayerTestGUI.IsFullscreen = Полный экран:   %5s (F11)
 LayerTestGUI.IsVSync = Верт. синхр.:   %5s (F12)
+
+LayerButtonTest.Title = Тест Кнопок