Create *Grid layouts

api/src/main/java/com/bartlomiejpluta/base/api/gui/WindowManager.java

@@ -107,6 +107,14 @@ public final class WindowManager extends BaseWidget {
       return windows.size();
    }
 
+   public boolean isEmpty() {
+      return windows.isEmpty();
+   }
+
+   public Window top() {
+      return windows.peekLast();
+   }
+
    @Override
    public void update(float dt) {
       switch (updateMode) {

api/src/main/java/com/bartlomiejpluta/base/lib/gui/HGridLayout.java

@@ -0,0 +1,102 @@
+package com.bartlomiejpluta.base.lib.gui;
+
+import com.bartlomiejpluta.base.api.context.Context;
+import com.bartlomiejpluta.base.api.gui.GUI;
+import com.bartlomiejpluta.base.api.screen.Screen;
+import lombok.NonNull;
+
+public class HGridLayout extends BaseContainer {
+   protected float offsetX = 0.0f;
+   protected float offsetY = 0.0f;
+   private int rows = 2;
+   private float[] heights = new float[rows];
+
+   public HGridLayout(Context context, GUI gui) {
+      super(context, gui);
+   }
+
+   public void setRows(@NonNull Integer rows) {
+      this.rows = rows;
+      heights = new float[rows];
+   }
+
+   @Override
+   protected float getContentWidth() {
+      int lastId = children.size() - 1;
+      var totalWidth = 0f;
+      var maxWidth = 0f;
+      var width = 0f;
+      var i = 0;
+
+      for (var child : children) {
+         width = child.getMarginLeft() + child.getWidth() + child.getMarginRight();
+
+         if (maxWidth < width) {
+            maxWidth = width;
+         }
+
+         if (i % rows == rows - 1 || i == lastId) {
+            totalWidth += maxWidth;
+            maxWidth = 0f;
+         }
+
+         ++i;
+      }
+
+      return totalWidth;
+   }
+
+   @Override
+   protected float getContentHeight() {
+      var maxHeight = 0f;
+
+      for (var height : heights) {
+         maxHeight += height;
+      }
+
+      return maxHeight;
+   }
+
+   @Override
+   public void draw(Screen screen, GUI gui) {
+      var currentX = x + paddingLeft + offsetX;
+      var currentY = y + paddingTop + offsetY;
+
+      var maxWidth = 0f;
+
+      var i = 0;
+      for (var child : children) {
+         var index = i % rows;
+         var height = child.getMarginTop() + child.getHeight() + child.getMarginBottom();
+         if (heights[index] < height) {
+            heights[index] = height;
+         }
+         ++i;
+      }
+
+      var row = 0;
+
+      for (var child : children) {
+         var childAbsX = currentX + child.getMarginLeft();
+         var childAbsY = currentY + child.getMarginTop();
+         child.setX(childAbsX);
+         child.setY(childAbsY);
+
+         if (row < rows - 1) {
+            currentY += heights[row];
+            var currentWidth = child.getMarginLeft() + child.getWidth() + child.getMarginRight();
+            if (maxWidth < currentWidth) {
+               maxWidth = currentWidth;
+            }
+            ++row;
+         } else {
+            row = 0;
+            currentY = y + paddingTop + offsetY;
+            currentX += maxWidth;
+            maxWidth = 0f;
+         }
+
+         child.draw(screen, gui);
+      }
+   }
+}

api/src/main/java/com/bartlomiejpluta/base/lib/gui/IconView.java

@@ -57,6 +57,15 @@ public class IconView extends BaseComponent {
       iconSetColumn = icon.getIconSetColumn();
    }
 
+   public void setIconSet(String iconSetUid) {
+      if (iconSetUid == null) {
+         iconSet = null;
+         return;
+      }
+
+      iconSet = gui.getIconSet(iconSetUid);
+   }
+
    public void setScale(@NonNull Float scale) {
       this.scaleX = scale;
       this.scaleY = scale;

api/src/main/java/com/bartlomiejpluta/base/lib/gui/VGridLayout.java

@@ -0,0 +1,102 @@
+package com.bartlomiejpluta.base.lib.gui;
+
+import com.bartlomiejpluta.base.api.context.Context;
+import com.bartlomiejpluta.base.api.gui.GUI;
+import com.bartlomiejpluta.base.api.screen.Screen;
+import lombok.NonNull;
+
+public class VGridLayout extends BaseContainer {
+   protected float offsetX = 0.0f;
+   protected float offsetY = 0.0f;
+   private int columns = 2;
+   private float[] widths = new float[columns];
+
+   public VGridLayout(Context context, GUI gui) {
+      super(context, gui);
+   }
+
+   public void setColumns(@NonNull Integer columns) {
+      this.columns = columns;
+      widths = new float[columns];
+   }
+
+   @Override
+   protected float getContentHeight() {
+      int lastId = children.size() - 1;
+      var totalHeight = 0f;
+      var maxHeight = 0f;
+      var height = 0f;
+      var i = 0;
+
+      for (var child : children) {
+         height = child.getMarginTop() + child.getHeight() + child.getMarginBottom();
+
+         if (maxHeight < height) {
+            maxHeight = height;
+         }
+
+         if (i % columns == columns - 1 || i == lastId) {
+            totalHeight += maxHeight;
+            maxHeight = 0f;
+         }
+
+         ++i;
+      }
+
+      return totalHeight;
+   }
+
+   @Override
+   protected float getContentWidth() {
+      var maxWidth = 0f;
+
+      for (var width : widths) {
+         maxWidth += width;
+      }
+
+      return maxWidth;
+   }
+
+   @Override
+   public void draw(Screen screen, GUI gui) {
+      var currentX = x + paddingLeft + offsetX;
+      var currentY = y + paddingTop + offsetY;
+
+      var maxHeight = 0f;
+
+      var i = 0;
+      for (var child : children) {
+         var index = i % columns;
+         var width = child.getMarginLeft() + child.getWidth() + child.getMarginRight();
+         if (widths[index] < width) {
+            widths[index] = width;
+         }
+         ++i;
+      }
+
+      var column = 0;
+
+      for (var child : children) {
+         var childAbsX = currentX + child.getMarginLeft();
+         var childAbsY = currentY + child.getMarginTop();
+         child.setX(childAbsX);
+         child.setY(childAbsY);
+
+         if (column < columns - 1) {
+            currentX += widths[column];
+            var currentHeight = child.getMarginTop() + child.getHeight() + child.getMarginBottom();
+            if (maxHeight < currentHeight) {
+               maxHeight = currentHeight;
+            }
+            ++column;
+         } else {
+            column = 0;
+            currentX = x + paddingLeft + offsetX;
+            currentY += maxHeight;
+            maxHeight = 0f;
+         }
+
+         child.draw(screen, gui);
+      }
+   }
+}