/*
 * Java ATK Wrapper for GNOME
 * Copyright (C) 2009 Sun Microsystems Inc.
 * Copyright (C) 2015 Magdalen Berns <m.berns@thismagpie.com>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */

package org.GNOME.Accessibility;

import javax.accessibility.*;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.Dimension;

public class AtkComponent {

  AccessibleContext ac;
  AccessibleComponent acc_component;
  private int x, y, width, height;
  private Rectangle extents;

  public AtkComponent (AccessibleContext ac) {
    super();
    this.ac = ac;
    this.acc_component = ac.getAccessibleComponent();
  }

  public boolean contains (int x, int y, int coord_type) {
    if (coord_type == AtkCoordType.SCREEN) {
      Point p = acc_component.getLocationOnScreen();
      this.x -= p.x;
      this.y -= p.y;
    }

    return acc_component.contains(new Point(x, y));
  }

  public AccessibleContext get_accessible_at_point (int x, int y, int coord_type) {
    if (coord_type == AtkCoordType.SCREEN) {
      Point p = acc_component.getLocationOnScreen();
      this.x -= p.x;
      this.y -= p.y;
    }

    javax.accessibility.Accessible accessible = acc_component.getAccessibleAt(new Point(x, y));
    if (accessible == null) {
      return null;
    }

    return accessible.getAccessibleContext();
  }

  public boolean grab_focus () {
    if (!acc_component.isFocusTraversable()) {
      return false;
    }

    acc_component.requestFocus();
    return true;
  }

  public Point get_position (int coord_type) {
    if (coord_type == AtkCoordType.SCREEN)
      return acc_component.getLocationOnScreen();

    return acc_component.getLocation();
  }

  public Rectangle set_extents(int x, int y, int width, int height, int coord_type) {
    this.width  = (int)acc_component.getSize().getWidth();
    this.height = (int)acc_component.getSize().getHeight();

    if (coord_type == AtkCoordType.SCREEN) {
      Point p = acc_component.getLocationOnScreen();
    } else {
      Point p = acc_component.getLocation();
      this.x -= p.x;
      this.y -= p.y;
    }

    return new Rectangle(x, y, width, height);
  }

  public Rectangle get_extents() {
    return acc_component.getBounds();
  }

  public int get_layer () {
    AccessibleRole role = ac.getAccessibleRole();

    if (role == AccessibleRole.MENU ||
      role == AccessibleRole.MENU_ITEM ||
      role == AccessibleRole.POPUP_MENU ) {
      return AtkLayer.POPUP;
    }

    if (role == AccessibleRole.INTERNAL_FRAME) {
      return AtkLayer.MDI;
    }

    if (role == AccessibleRole.GLASS_PANE) {
      return AtkLayer.OVERLAY;
    }

    if (role == AccessibleRole.CANVAS ||
      role == AccessibleRole.ROOT_PANE ||
      role == AccessibleRole.LAYERED_PANE ) {
      return AtkLayer.CANVAS;
    }

    if (role == AccessibleRole.WINDOW) {
     return AtkLayer.WINDOW;
    }

    return AtkLayer.WIDGET;
  }
}