Examples of com.badlogic.gdx.scenes.scene2d.Actor

com.badlogic.gdx.scenes.scene2d.Actor
2D scene graph node. An actor has a position, rectangular size, origin, scale, rotation, Z index, and color. The position corresponds to the unrotated, unscaled bottom left corner of the actor. The position is relative to the actor's parent. The origin is relative to the position and is used for scale and rotation.
An actor has a list of in progress {@link Action actions} that are applied to the actor (often over time). These are generallyused to change the presentation of the actor (moving it, resizing it, etc). See {@link #act(float)}, {@link Action} and itsmany subclasses.
An actor has two kinds of listeners associated with it: "capture" and regular. The listeners are notified of events the actor or its children receive. The regular listeners are designed to allow an actor to respond to events that have been delivered. The capture listeners are designed to allow a parent or container actor to handle events before child actors. See {@link #fire}for more details.
An {@link InputListener} can receive all the basic input events. More complex listeners (like {@link ClickListener} and{@link ActorGestureListener}) can listen for and combine primitive events and recognize complex interactions like multi-touch or pinch. @author mzechner @author Nathan Sweet


      private void focusChanged (FocusEvent event) {
        Stage stage = getStage();
        if (isModal && stage != null && stage.getRoot().getChildren().size > 0
          && stage.getRoot().getChildren().peek() == Dialog.this) { // Dialog is top most actor.
          Actor newFocusedActor = event.getRelatedActor();
          if (newFocusedActor != null && !newFocusedActor.isDescendantOf(Dialog.this)) event.cancel();
        }
      }
    });
  }

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  public Dialog show (Stage stage) {
    clearActions();
    removeCaptureListener(ignoreTouchDown);


    previousKeyboardFocus = null;
    Actor actor = stage.getKeyboardFocus();
    if (actor != null && !actor.isDescendantOf(this)) previousKeyboardFocus = actor;


    previousScrollFocus = null;
    actor = stage.getScrollFocus();
    if (actor != null && !actor.isDescendantOf(this)) stage.setScrollFocus(previousScrollFocus);


    pack();
    setPosition(Math.round((stage.getWidth() - getWidth()) / 2), Math.round((stage.getHeight() - getHeight()) / 2));
    stage.addActor(this);
    stage.setKeyboardFocus(this);

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    super.setParent(parent);
    if (parent == null) {
      Stage stage = getStage();
      if (stage != null) {
        if (previousKeyboardFocus != null && previousKeyboardFocus.getStage() == null) previousKeyboardFocus = null;
        Actor actor = stage.getKeyboardFocus();
        if (actor == null || actor.isDescendantOf(this)) stage.setKeyboardFocus(previousKeyboardFocus);


        if (previousScrollFocus != null && previousScrollFocus.getStage() == null) previousScrollFocus = null;
        actor = stage.getScrollFocus();
        if (actor == null || actor.isDescendantOf(this)) stage.setScrollFocus(previousScrollFocus);
      }
    }
  }

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        float widgetWidth = Math.round(c.getWidgetWidth());
        float widgetHeight = Math.round(c.getWidgetHeight());
        float widgetX = Math.round(c.getWidgetX());
        float widgetY = height - Math.round(c.getWidgetY()) - widgetHeight;
        c.setWidgetBounds(widgetX, widgetY, widgetWidth, widgetHeight);
        Actor actor = (Actor)c.getWidget();
        if (actor != null) actor.setBounds(widgetX, widgetY, widgetWidth, widgetHeight);
      }
    } else {
      for (int i = 0, n = cells.size(); i < n; i++) {
        Cell c = cells.get(i);
        if (c.getIgnore()) continue;
        float widgetHeight = c.getWidgetHeight();
        float widgetY = height - c.getWidgetY() - widgetHeight;
        c.setWidgetY(widgetY);
        Actor actor = (Actor)c.getWidget();
        if (actor != null) actor.setBounds(c.getWidgetX(), widgetY, c.getWidgetWidth(), widgetHeight);
      }
    }
    // Validate children separately from sizing actors to ensure actors without a cell are validated.
    Array<Actor> children = table.getChildren();
    for (int i = 0, n = children.size; i < n; i++) {
      Actor child = children.get(i);
      if (child instanceof Layout) ((Layout)child).validate();
    }
  }

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      else
        debugRenderer = new ImmediateModeRenderer10(64);
    }


    float x = 0, y = 0;
    Actor parent = getTable();
    while (parent != null) {
      if (parent instanceof Group) {
        x += parent.getX();
        y += parent.getY();
      }
      parent = parent.getParent();
    }


    debugRenderer.begin(batch.getProjectionMatrix(), GL10.GL_LINES);
    for (int i = 0, n = debugRects.size; i < n; i++) {
      DebugRect rect = debugRects.get(i);

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    if (!vertical)
      calculateHorizBoundsAndPositions();
    else
      calculateVertBoundsAndPositions();


    Actor firstWidget = this.firstWidget;
    if (firstWidget != null) {
      Rectangle firstWidgetBounds = this.firstWidgetBounds;
      firstWidget.setBounds(firstWidgetBounds.x, firstWidgetBounds.y, firstWidgetBounds.width, firstWidgetBounds.height);
      if (firstWidget instanceof Layout) ((Layout)firstWidget).validate();
    }
    Actor secondWidget = this.secondWidget;
    if (secondWidget != null) {
      Rectangle secondWidgetBounds = this.secondWidgetBounds;
      secondWidget.setBounds(secondWidgetBounds.x, secondWidgetBounds.y, secondWidgetBounds.width, secondWidgetBounds.height);
      if (secondWidget instanceof Layout) ((Layout)secondWidget).validate();
    }
  }

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      Gdx.input.setOnscreenKeyboardVisible(false);
  }


  private TextField findNextTextField (Array<Actor> actors, TextField best, Vector2 bestCoords, Vector2 currentCoords, boolean up) {
    for (int i = 0, n = actors.size; i < n; i++) {
      Actor actor = actors.get(i);
      if (actor == this) continue;
      if (actor instanceof TextField) {
        TextField textField = (TextField)actor;
        if (textField.isDisabled() || !textField.focusTraversal) continue;
        Vector2 actorCoords = actor.getParent().localToStageCoordinates(tmp3.set(actor.getX(), actor.getY()));
        if ((actorCoords.y < currentCoords.y || (actorCoords.y == currentCoords.y && actorCoords.x > currentCoords.x)) ^ up) {
          if (best == null
            || (actorCoords.y > bestCoords.y || (actorCoords.y == bestCoords.y && actorCoords.x < bestCoords.x)) ^ up) {
            best = (TextField)actor;
            bestCoords.set(actorCoords);

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    float ySpacing = this.ySpacing;
    float spacing = iconSpacingLeft + iconSpacingRight;
    for (int i = 0, n = nodes.size; i < n; i++) {
      Node node = nodes.get(i);
      float rowWidth = indent + iconSpacingRight;
      Actor actor = node.actor;
      if (actor instanceof Layout) {
        Layout layout = (Layout)actor;
        rowWidth += layout.getPrefWidth();
        node.height = layout.getPrefHeight();
        layout.pack();
      } else {
        rowWidth += actor.getWidth();
        node.height = actor.getHeight();
      }
      if (node.icon != null) {
        rowWidth += spacing + node.icon.getMinWidth();
        node.height = Math.max(node.height, node.icon.getMinHeight());
      }

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  private float layout (Array<Node> nodes, float indent, float y) {
    float ySpacing = this.ySpacing;
    for (int i = 0, n = nodes.size; i < n; i++) {
      Node node = nodes.get(i);
      Actor actor = node.actor;
      float x = indent;
      if (node.icon != null) x += node.icon.getMinWidth();
      y -= node.height;
      node.actor.setPosition(x, y);
      y -= ySpacing;

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  private void draw (SpriteBatch batch, Array<Node> nodes, float indent) {
    Drawable plus = style.plus, minus = style.minus;
    float x = getX(), y = getY();
    for (int i = 0, n = nodes.size; i < n; i++) {
      Node node = nodes.get(i);
      Actor actor = node.actor;


      if (selectedNodes.contains(node, true) && style.selection != null) {
        style.selection.draw(batch, x, y + actor.getY() - ySpacing / 2, getWidth(), node.height + ySpacing);
      } else if (node == overNode && style.over != null) {
        style.over.draw(batch, x, y + actor.getY() - ySpacing / 2, getWidth(), node.height + ySpacing);
      }


      if (node.icon != null) {
        float iconY = actor.getY() + Math.round((node.height - node.icon.getMinHeight()) / 2);
        batch.setColor(actor.getColor());
        node.icon.draw(batch, x + node.actor.getX() - iconSpacingRight - node.icon.getMinWidth(), y + iconY,
          node.icon.getMinWidth(), node.icon.getMinHeight());
        batch.setColor(Color.WHITE);
      }


      if (node.children.size == 0) continue;


      Drawable expandIcon = node.expanded ? minus : plus;
      float iconY = actor.getY() + Math.round((node.height - expandIcon.getMinHeight()) / 2);
      expandIcon.draw(batch, x + indent - iconSpacingLeft, y + iconY, expandIcon.getMinWidth(), expandIcon.getMinHeight());
      if (node.expanded) draw(batch, node.children, indent + indentSpacing);
    }
  }

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