Add support for window inflating

api/src/main/java/com/bartlomiejpluta/base/api/game/gui/base/GUI.java

@@ -1,6 +1,7 @@
 package com.bartlomiejpluta.base.api.game.gui.base;
 
 import com.bartlomiejpluta.base.api.game.gui.component.Component;
+import com.bartlomiejpluta.base.api.game.gui.window.Window;
 import com.bartlomiejpluta.base.api.game.input.KeyEventHandler;
 import com.bartlomiejpluta.base.api.internal.gc.Disposable;
 import com.bartlomiejpluta.base.api.internal.render.Renderable;
@@ -23,6 +24,8 @@ public interface GUI extends Renderable, Disposable, KeyEventHandler {
 
    Component inflateComponent(String widgetUid);
 
+   Window inflateWindow(String widgetUid);
+
    Widget getRoot();
 
    void setRoot(Widget root);

api/src/main/java/com/bartlomiejpluta/base/api/game/gui/window/BaseWindow.java

@@ -1,5 +1,6 @@
 package com.bartlomiejpluta.base.api.game.gui.window;
 
+import com.bartlomiejpluta.base.api.game.context.Context;
 import com.bartlomiejpluta.base.api.game.gui.base.BaseWidget;
 import com.bartlomiejpluta.base.api.game.gui.base.GUI;
 import com.bartlomiejpluta.base.api.game.gui.component.Component;
@@ -9,9 +10,29 @@ import com.bartlomiejpluta.base.api.game.screen.Screen;
 import static java.util.Objects.requireNonNull;
 
 public abstract class BaseWindow extends BaseWidget implements Window {
+   protected Context context;
+   protected GUI gui;
    protected Component content;
    protected WindowPosition windowPosition;
 
+   protected BaseWindow(Context context, GUI gui) {
+      this.context = context;
+      this.gui = gui;
+   }
+
+   @Override
+   public void setContent(Component component) {
+      if (this.content != null) {
+         this.content.setParent(null);
+      }
+
+      this.content = component;
+
+      if (component != null) {
+         component.setParent(this);
+      }
+   }
+
    @Override
    public WindowPosition getWindowPosition() {
       return windowPosition;
@@ -38,16 +59,6 @@ public abstract class BaseWindow extends BaseWidget implements Window {
       content.draw(screen, gui);
    }
 
-   @Override
-   public void onOpen(WindowManager manager) {
-      // do nothing
-   }
-
-   @Override
-   public void onClose(WindowManager manager) {
-      // do nothing
-   }
-
    @Override
    public void handleKeyEvent(KeyEvent event) {
       content.handleKeyEvent(event);

api/src/main/java/com/bartlomiejpluta/base/api/game/gui/window/Window.java

@@ -1,13 +1,20 @@
 package com.bartlomiejpluta.base.api.game.gui.window;
 
 import com.bartlomiejpluta.base.api.game.gui.base.Widget;
+import com.bartlomiejpluta.base.api.game.gui.component.Component;
 
 public interface Window extends Widget {
+   void setContent(Component component);
+
    WindowPosition getWindowPosition();
 
    void setWindowPosition(WindowPosition windowPosition);
 
-   void onOpen(WindowManager manager);
+   default void onOpen(WindowManager manager) {
+      // do nothing
+   }
 
-   void onClose(WindowManager manager);
+   default void onClose(WindowManager manager) {
+      // do nothing
+   }
 }