/**
 * PANDA 3D SOFTWARE
 * Copyright (c) Carnegie Mellon University.  All rights reserved.
 *
 * All use of this software is subject to the terms of the revised BSD
 * license.  You should have received a copy of this license along
 * with this source code in a file named "LICENSE."
 *
 * @file pgButton.I
 * @author drose
 * @date 2002-03-13
 */

/**
 * Sets the object which will be notified when the PGButton changes.  Set this
 * to NULL to disable this effect.  The PGButton does not retain ownership of
 * the pointer; it is your responsibility to ensure that the notify object
 * does not destruct.
 */
INLINE void PGButton::
set_notify(PGButtonNotify *notify) {
  PGItem::set_notify(notify);
}

/**
 * Returns the object which will be notified when the PGButton changes, if
 * any.  Returns NULL if there is no such object configured.
 */
INLINE PGButtonNotify *PGButton::
get_notify() const {
  return (PGButtonNotify *)PGItem::get_notify();
}

/**
 * Sets up the button using the indicated NodePath as arbitrary geometry.
 */
INLINE void PGButton::
setup(const NodePath &ready) {
  setup(ready, ready, ready, ready);
}

/**
 * Sets up the button using the indicated NodePath as arbitrary geometry.
 */
INLINE void PGButton::
setup(const NodePath &ready, const NodePath &depressed) {
  setup(ready, depressed, ready, ready);
}

/**
 * Sets up the button using the indicated NodePath as arbitrary geometry.
 */
INLINE void PGButton::
setup(const NodePath &ready, const NodePath &depressed,
      const NodePath &rollover) {
  setup(ready, depressed, rollover, ready);
}

/**
 * Returns the prefix that is used to define the click event for all
 * PGButtons.  The click event is the concatenation of this string followed by
 * get_id().
 */
INLINE std::string PGButton::
get_click_prefix() {
  return "click-";
}

/**
 * Returns the event name that will be thrown when the button is clicked
 * normally.
 */
INLINE std::string PGButton::
get_click_event(const ButtonHandle &button) const {
  LightReMutexHolder holder(_lock);
  return get_click_prefix() + button.get_name() + "-" + get_id();
}

/**
 * Returns true if the user is currently holding the mouse button down on the
 * button, false otherwise.
 */
INLINE bool PGButton::
is_button_down() {
  LightReMutexHolder holder(_lock);
  return _button_down;
}