//
// "$Id$"
//
// Enumerations for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-2008 by Bill Spitzak and others.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Library General Public
// License as published by the Free Software Foundation; either
// version 2 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
// Library General Public License for more details.
//
// You should have received a copy of the GNU Library General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA.
//
// Please report all bugs and problems on the following page:
//
//     http://www.fltk.org/str.php
//

/** \file
 *  This file contains type definitions and general enumerations.
 */

#ifndef Fl_Enumerations_H
#define Fl_Enumerations_H

#  include "Fl_Export.H"
#  include "fl_types.h"

/** \name Version Numbers

    FLTK defines some constants to help the programmer to
    find out, for which FLTK version a program is compiled.
    
    The following constants are defined:
 */
/*@{*/

/**
 * The major release version of this FLTK library.
   \sa FL_VERSION
 */
#define FL_MAJOR_VERSION	1

/**
 * The minor release version for this library.
 *
 * FLTK remains mostly source-code compatible between minor version changes.
 */
#define FL_MINOR_VERSION	3

/**
 * The patch version for this library.
 *
 * FLTK remains binary compatible between patches.
 */
#define FL_PATCH_VERSION	0

/**
 *  The FLTK version number as a \em double.
 *
 *  This is changed slightly from the beta versions
 *  because the old "const double" definition would not allow for conditional
 *  compilation...
 *
 *  FL_VERSION is a double that describes the major and minor version numbers.
 *  Version 1.1 is actually stored as 1.01 to allow for more than 9 minor
 *  releases.
 *
 *  The FL_MAJOR_VERSION, FL_MINOR_VERSION, and FL_PATCH_VERSION constants
 *  give the integral values for the major, minor, and patch releases
 *  respectively.
 */
#define FL_VERSION		((double)FL_MAJOR_VERSION + \
				 (double)FL_MINOR_VERSION * 0.01 + \
				 (double)FL_PATCH_VERSION * 0.0001)

/*@}*/	// group: Version Numbers

/**
 *  Every time a user moves the mouse pointer, clicks a button,
 *  or presses a key, an event is generated and sent to your
 *  application. Events can also come from other programs like the
 *  window manager.
 * 
 *  Events are identified by the integer argument passed to the 
 *  Fl_Widget::handle() virtual method. Other information about the 
 *  most recent event is stored in static locations and acquired  by 
 *  calling the Fl::event_*() methods. This static information remains 
 *  valid until the next event is read from the window system, so it 
 *  is ok to look at it outside of the handle() method.
 *
 *  \sa Fl::event_text(), Fl::event_key(), class Fl::
 */
enum Fl_Event {	// events
  /** No event. */
  FL_NO_EVENT		= 0,

  /** A mouse button has gone down with the mouse pointing at this
   *  widget. You can find out what button by calling Fl::event_button(). 
   *  You find out the mouse position by calling Fl::event_x() and
   *  Fl::event_y().
   *
   *  A widget indicates that it "wants" the mouse click by returning non-zero 
   *  from its Fl_Widget::handle() method. It will then become the 
   *  Fl::pushed() widget and will get FL_DRAG and the matching FL_RELEASE events.  
   *  If Fl_Widget::handle() returns zero then FLTK will try sending the FL_PUSH 
   *  to another widget. 
   */
  FL_PUSH		= 1,

  /** A mouse button has been released. You can find out what button by 
   *  calling Fl::event_button().
   *
   *  In order to receive the FL_RELEASE event, the widget must return 
   *  non-zero when handling FL_PUSH.
   */
  FL_RELEASE		= 2,

  /** The mouse has been moved to point at this widget.  This can
   *  be used for highlighting feedback.  If a widget wants to
   *  highlight or otherwise track the mouse, it indicates this by
   *  returning non-zero from its handle() method. It then
   *  becomes the Fl::belowmouse() widget and will receive 
   *  FL_MOVE and FL_LEAVE events.
   */
  FL_ENTER		= 3,

  /** The mouse has moved out of the widget.
   *  In order to receive the FL_LEAVE event, the widget must 
   *  return non-zero when handling FL_ENTER.
   */
  FL_LEAVE		= 4,

  /** The mouse has moved with a button held down. The current button state 
   *  is in Fl::event_state(). The mouse position is in Fl::event_x() and 
   *  Fl::event_y().
   *
   *  In order to receive FL_DRAG events, the widget must return non-zero 
   *  when handling FL_PUSH.
   */
  FL_DRAG		= 5,

  /** This indicates an <I>attempt</I> to give a widget the keyboard focus.
   *
   *  If a widget wants the focus, it should change itself to display the 
   *  fact that it has the focus, and return non-zero from its handle() method.
   *  It then becomes the Fl::focus() widget and gets FL_KEYDOWN, FL_KEYUP, 
   *  and FL_UNFOCUS events.
   *
   *  The focus will change either because the window manager changed which 
   *  window gets the focus, or because the user tried to navigate using tab, 
   *  arrows, or other keys. You can check Fl::event_key() to figure out why 
   *  it moved. For navigation it will be the key pressed and interaction 
   *  with the window manager it will be zero.
   */
  FL_FOCUS		= 6,
  
  /** This event is sent to the previous Fl::focus() widget when another 
   *  widget gets the focus or the window loses focus.
   */
  FL_UNFOCUS		= 7,

  /** A key was pressed or released. The key can be found in Fl::event_key().
   *  The text that the key should insert can be found with Fl::event_text() 
   *  and its length is in Fl::event_length(). If you use the key handle()
   *  should return 1. If you return zero then FLTK assumes you ignored the 
   *  key and will then attempt to send it to a parent widget. If none of 
   *  them want it, it will change the event into a FL_SHORTCUT event.
   *
   *  To receive FL_KEYBOARD events you must also respond to the FL_FOCUS
   *  and FL_UNFOCUS events.
   *
   *  If you are writing a text-editing widget you may also want to call 
   *  the Fl::compose() function to translate individual keystrokes into 
   *  foreign characters.
   *
   *  FL_KEYUP events are sent to the widget that currently has focus. This 
   *  is not necessarily the same widget that received the corresponding 
   *  FL_KEYDOWN event because focus may have changed between events.
   */
  FL_KEYDOWN		= 8,

  /** Equvalent to FL_KEYDOWN.
   *  \see FL_KEYDOWN
   */
  FL_KEYBOARD		= 8,
 
  /** Key release event.
   *  \see FL_KEYDOWN
   */
  FL_KEYUP		= 9,

  /** The user clicked the close button of a window.
   *  This event is used internally only to trigger the callback of
   *  Fl_Window derived classed. The default callback closes the 
   *  window calling Fl_Window::hide().
   */
  FL_CLOSE		= 10,

  /** The mouse has moved without any mouse buttons held down. 
   *  This event is sent to the Fl::belowmouse() widget.
   *
   *  In order to receive FL_MOVE events, the widget must return 
   *  non-zero when handling FL_ENTER.
   */
  FL_MOVE		= 11,

  /** If the Fl::focus() widget is zero or ignores an FL_KEYBOARD
   *  event then FLTK tries sending this event to every widget it 
   *  can, until one of them returns non-zero. FL_SHORTCUT is first 
   *  sent to the Fl::belowmouse() widget, then its parents and siblings, 
   *  and eventually to every widget in the window, trying to find an 
   *  object that returns non-zero. FLTK tries really hard to not to ignore 
   *  any keystrokes!
   *
   *  You can also make "global" shortcuts by using Fl::add_handler(). A 
   *  global shortcut will work no matter what windows are displayed or 
   *  which one has the focus.
   */
  FL_SHORTCUT		= 12,

  /** This widget is no longer active, due to Fl_Widget::deactivate() 
   *  being called on it or one of its parents. Fl_Widget::active() may 
   *  still be true after this, the widget is only active if Fl_Widget::active()
   *  is true on it and all its parents (use Fl_Widget::active_r() to check this).
   */
  FL_DEACTIVATE		= 13,

  /** This widget is now active, due to Fl_Widget::activate() being 
   *  called on it or one of its parents.
   */
  FL_ACTIVATE		= 14,

  /** This widget is no longer visible, due to Fl_Widget::hide() being 
   *  called on it or one of its parents, or due to a parent window being 
   *  minimized.  Fl_Widget::visible() may still be true after this, but the 
   *  widget is visible only if visible() is true for it and all its 
   *  parents (use Fl_Widget::visible_r() to check this).
   */
  FL_HIDE		= 15,

  /** This widget is visible again, due to Fl_Widget::show() being called on 
   *  it or one of its parents, or due to a parent window being restored. 
   *  Child Fl_Windows respond to this by actually creating the window if not 
   *  done already, so if you subclass a window, be sure to pass FL_SHOW 
   *  to the base class Fl_Widget::handle() method!
   */
  FL_SHOW		= 16,

  /** You should get this event some time after you call Fl::paste(). 
   *  The contents of Fl::event_text() is the text to insert and the number 
   *  of characters is in Fl::event_length().
   */
  FL_PASTE		= 17,

  /** The Fl::selection_owner() will get this event before the selection is 
   *  moved to another widget. This indicates that some other widget or program 
   *  has claimed the selection. Motif programs used this to clear the selection 
   *  indication. Most modern programs ignore this.
   */
  FL_SELECTIONCLEAR	= 18,

  /** The user has moved the mouse wheel. The Fl::event_dx() and Fl::event_dy()
   *  methods can be used to find the amount to scroll horizontally and vertically.
   */
  FL_MOUSEWHEEL		= 19,

  /** The mouse has been moved to point at this widget. A widget that is 
   *  interested in receiving drag'n'drop data must return 1 to receive 
   *  FL_DND_DRAG, FL_DND_LEAVE and FL_DND_RELEASE events.
   */
  FL_DND_ENTER		= 20,

  /** The mouse has been moved inside a widget while dragging data.  A 
   *  widget that is interested in receiving drag'n'drop data should 
   *  indicate the possible drop position.
   */
  FL_DND_DRAG		= 21,

  /** The mouse has moved out of the widget.
   */
  FL_DND_LEAVE		= 22,

  /** The user has released the mouse button dropping data into the widget. 
   *  If the widget returns 1, it will receive the data in the immediately 
   *  following FL_PASTE event.
   */
  FL_DND_RELEASE	= 23
};

/** \name When Conditions */
/*@{*/
/** These constants determine when a callback is performed.
 *
 *  \sa Fl_Widget::when();
 *  \todo doxygen comments for values are incomplete and maybe wrong or unclear
 */
enum Fl_When { // Fl_Widget::when():
  FL_WHEN_NEVER		= 0,	///< Never call the callback
  FL_WHEN_CHANGED	= 1,	///< Do the callback only when the widget value changes
  FL_WHEN_NOT_CHANGED	= 2,	///< Do the callback whenever the user interacts with the widget
  FL_WHEN_RELEASE	= 4,	///< Do the callback when the button or key is released and the value changes
  FL_WHEN_RELEASE_ALWAYS= 6,	///< Do the callback when the button or key is released, even if the value doesn't change
  FL_WHEN_ENTER_KEY	= 8,	///< Do the callback when the user presses the ENTER key and the value changes
  FL_WHEN_ENTER_KEY_ALWAYS=10,	///< Do the callback when the user presses the ENTER key, even if the value doesn't change
  FL_WHEN_ENTER_KEY_CHANGED=11	///< ?
};

/*@}*/		// group: When Conditions

/** \name Mouse and Keyboard Events

	This and the following constants define the non-ASCII keys on the
	keyboard for FL_KEYBOARD and FL_SHORTCUT events.

	\todo	FL_Button and FL_key... constants could be structured better
		(use an enum or some doxygen grouping ?)
  
	\sa	Fl::event_key() and Fl::get_key(int) (use ascii letters for all other keys):
 */

/*@{*/

#define FL_Button	0xfee8	///< A mouse button; use Fl_Button + n for mouse button n.
#define FL_BackSpace	0xff08	///< The backspace key.
#define FL_Tab		0xff09	///< The tab key.
#define FL_Enter	0xff0d	///< The enter key. 
#define FL_Pause	0xff13	///< The pause key.
#define FL_Scroll_Lock	0xff14	///< The scroll lock key.
#define FL_Escape	0xff1b	///< The escape key.
#define FL_Home		0xff50	///< The home key.
#define FL_Left		0xff51	///< The left arrow key.
#define FL_Up		0xff52	///< The up arrow key.
#define FL_Right	0xff53	///< The right arrow key.
#define FL_Down		0xff54	///< The down arrow key.
#define FL_Page_Up	0xff55	///< The page-up key.
#define FL_Page_Down	0xff56	///< The page-down key.
#define FL_End		0xff57	///< The end key.
#define FL_Print	0xff61	///< The print (or print-screen) key.
#define FL_Insert	0xff63	///< The insert key. 
#define FL_Menu		0xff67	///< The menu key.
#define FL_Help		0xff68	///< The 'help' key on Mac keyboards
#define FL_Num_Lock	0xff7f	///< The num lock key.
#define FL_KP		0xff80	///< One of the keypad numbers; use FL_KP + n for number n.
#define FL_KP_Enter	0xff8d	///< The enter key on the keypad, same as Fl_KP+'\\r'.
#define FL_KP_Last	0xffbd	///< The last keypad key; use to range-check keypad.
#define FL_F		0xffbd	///< One of the function keys; use FL_F + n for function key n.
#define FL_F_Last	0xffe0	///< The last function key; use to range-check function keys.
#define FL_Shift_L	0xffe1	///< The lefthand shift key.
#define FL_Shift_R	0xffe2	///< The righthand shift key.
#define FL_Control_L	0xffe3	///< The lefthand control key.
#define FL_Control_R	0xffe4	///< The righthand control key.
#define FL_Caps_Lock	0xffe5	///< The caps lock key.
#define FL_Meta_L	0xffe7	///< The left meta/Windows key.
#define FL_Meta_R	0xffe8	///< The right meta/Windows key.
#define FL_Alt_L	0xffe9	///< The left alt key.
#define FL_Alt_R	0xffea	///< The right alt key. 
#define FL_Delete	0xffff	///< The delete key.

/*@}*/	// group: Mouse and Keyboard Events

/** \name Mouse Buttons

	These constants define the button numbers for FL_PUSH and FL_RELEASE events.
	
	\sa Fl::event_button()
*/

/*@{*/

#define FL_LEFT_MOUSE	1	///< The left mouse button
#define FL_MIDDLE_MOUSE	2	///< The middle mouse button
#define FL_RIGHT_MOUSE	3	///< The right mouse button

/*@}*/		// group: Mouse Buttons


/** \name	Event States

	The following constants define bits in the Fl::event_state() value.
*/

/*@{*/		// group: Event States

#define FL_SHIFT	0x00010000	///< One of the shift keys is down
#define FL_CAPS_LOCK	0x00020000	///< The caps lock is on
#define FL_CTRL		0x00040000	///< One of the ctrl keys is down
#define FL_ALT		0x00080000	///< One of the alt keys is down
#define FL_NUM_LOCK	0x00100000	///< The num lock is on
					// most X servers do this?
#define FL_META		0x00400000	///< One of the meta/Windows keys is down
					// correct for XFree86
#define FL_SCROLL_LOCK	0x00800000	///< The scroll lock is on
					// correct for XFree86
#define FL_BUTTON1	0x01000000	///< Mouse button 1 is pushed
#define FL_BUTTON2	0x02000000	///< Mouse button 2 is pushed
#define FL_BUTTON3	0x04000000	///< Mouse button 3 is pushed
#define FL_BUTTONS	0x7f000000	///< Any mouse button is pushed
#define FL_BUTTON(n)	(0x00800000<<(n)) ///< Mouse button n (n > 0) is pushed

#ifdef __APPLE__
#  define FL_COMMAND	FL_META		///< An alias for FL_CTRL on WIN32 and X11, or FL_META on MacOS X
#else
#  define FL_COMMAND	FL_CTRL		///< An alias for FL_CTRL on WIN32 and X11, or FL_META on MacOS X
#endif // __APPLE__

/*@}*/		// group: Event States

/** \name Box Types
    \brief FLTK standard box types
    
    This enum defines the standard box types included with FLTK.
    
    FL_NO_BOX means nothing is drawn at all, so whatever is already 
    on the screen remains. The FL_..._FRAME types only draw their edges, 
    leaving the interior unchanged. The blue color in Figure 1 
    is the area that is not drawn by the frame types.
    
    \image html boxtypes.gif "Figure 1: FLTK standard box types"

    \todo	Description of boxtypes is incomplete.
    		See below for the defined enum Fl_Boxtype.
		\see src/Fl_get_system_colors.cxx
*/
/*@{*/
enum Fl_Boxtype { // boxtypes (if you change these you must fix fl_boxtype.C):

  FL_NO_BOX = 0,		///< nothing is drawn at all, this box is invisible
  FL_FLAT_BOX,			///< a flat box
  FL_UP_BOX,			///< see figure 1
  FL_DOWN_BOX,			///< see figure 1
  FL_UP_FRAME,			///< see figure 1
  FL_DOWN_FRAME,		///< see figure 1
  FL_THIN_UP_BOX,		///< see figure 1
  FL_THIN_DOWN_BOX,		///< see figure 1
  FL_THIN_UP_FRAME,		///< see figure 1
  FL_THIN_DOWN_FRAME,		///< see figure 1
  FL_ENGRAVED_BOX,		///< see figure 1
  FL_EMBOSSED_BOX,		///< see figure 1
  FL_ENGRAVED_FRAME,		///< see figure 1
  FL_EMBOSSED_FRAME,		///< see figure 1
  FL_BORDER_BOX,		///< see figure 1
  _FL_SHADOW_BOX,		///< see figure 1
  FL_BORDER_FRAME,		///< see figure 1
  _FL_SHADOW_FRAME,		///< see figure 1
  _FL_ROUNDED_BOX,		///< see figure 1
  _FL_RSHADOW_BOX,		///< see figure 1
  _FL_ROUNDED_FRAME,		///< see figure 1
  _FL_RFLAT_BOX,		///< see figure 1
  _FL_ROUND_UP_BOX,		///< see figure 1
  _FL_ROUND_DOWN_BOX,		///< see figure 1
  _FL_DIAMOND_UP_BOX,		///< see figure 1
  _FL_DIAMOND_DOWN_BOX,		///< see figure 1
  _FL_OVAL_BOX,			///< see figure 1
  _FL_OSHADOW_BOX,		///< see figure 1
  _FL_OVAL_FRAME,		///< see figure 1
  _FL_OFLAT_BOX,		///< see figure 1
  _FL_PLASTIC_UP_BOX,		///< plastic version of FL_UP_BOX
  _FL_PLASTIC_DOWN_BOX,		///< plastic version of FL_DOWN_BOX
  _FL_PLASTIC_UP_FRAME,		///< plastic version of FL_UP_FRAME
  _FL_PLASTIC_DOWN_FRAME,	///< plastic version of FL_DOWN_FRAME
  _FL_PLASTIC_THIN_UP_BOX,	///< plastic version of FL_THIN_UP_BOX
  _FL_PLASTIC_THIN_DOWN_BOX,	///< plastic version of FL_THIN_DOWN_BOX
  _FL_PLASTIC_ROUND_UP_BOX,	///< plastic version of FL_ROUND_UP_BOX
  _FL_PLASTIC_ROUND_DOWN_BOX,	///< plastic version of FL_ROUND_DOWN_BOX
  _FL_GTK_UP_BOX,		///< gtk+ version of FL_UP_BOX
  _FL_GTK_DOWN_BOX,		///< gtk+ version of FL_DOWN_BOX
  _FL_GTK_UP_FRAME,		///< gtk+ version of FL_UP_FRAME
  _FL_GTK_DOWN_FRAME,		///< gtk+ version of FL_DOWN_RAME
  _FL_GTK_THIN_UP_BOX,		///< gtk+ version of FL_THIN_UP_BOX
  _FL_GTK_THIN_DOWN_BOX,	///< gtk+ version of FL_THIN_DOWN_BOX
  _FL_GTK_THIN_UP_FRAME,	///< gtk+ version of FL_UP_FRAME
  _FL_GTK_THIN_DOWN_FRAME,	///< gtk+ version of FL_THIN_DOWN_FRAME
  _FL_GTK_ROUND_UP_BOX,		///< gtk+ version of FL_ROUND_UP_BOX
  _FL_GTK_ROUND_DOWN_BOX,	///< gtk+ version of FL_ROUND_DOWN_BOX
  FL_FREE_BOXTYPE		///< the first free box type for creation of new box types
};
extern FL_EXPORT Fl_Boxtype fl_define_FL_ROUND_UP_BOX();
#define FL_ROUND_UP_BOX fl_define_FL_ROUND_UP_BOX()
#define FL_ROUND_DOWN_BOX (Fl_Boxtype)(fl_define_FL_ROUND_UP_BOX()+1)
extern FL_EXPORT Fl_Boxtype fl_define_FL_SHADOW_BOX();
#define FL_SHADOW_BOX fl_define_FL_SHADOW_BOX()
#define FL_SHADOW_FRAME (Fl_Boxtype)(fl_define_FL_SHADOW_BOX()+2)
extern FL_EXPORT Fl_Boxtype fl_define_FL_ROUNDED_BOX();
#define FL_ROUNDED_BOX fl_define_FL_ROUNDED_BOX()
#define FL_ROUNDED_FRAME (Fl_Boxtype)(fl_define_FL_ROUNDED_BOX()+2)
extern FL_EXPORT Fl_Boxtype fl_define_FL_RFLAT_BOX();
#define FL_RFLAT_BOX fl_define_FL_RFLAT_BOX()
extern FL_EXPORT Fl_Boxtype fl_define_FL_RSHADOW_BOX();
#define FL_RSHADOW_BOX fl_define_FL_RSHADOW_BOX()
extern FL_EXPORT Fl_Boxtype fl_define_FL_DIAMOND_BOX();
#define FL_DIAMOND_UP_BOX fl_define_FL_DIAMOND_BOX()
#define FL_DIAMOND_DOWN_BOX (Fl_Boxtype)(fl_define_FL_DIAMOND_BOX()+1)
extern FL_EXPORT Fl_Boxtype fl_define_FL_OVAL_BOX();
#define FL_OVAL_BOX fl_define_FL_OVAL_BOX()
#define FL_OSHADOW_BOX (Fl_Boxtype)(fl_define_FL_OVAL_BOX()+1)
#define FL_OVAL_FRAME (Fl_Boxtype)(fl_define_FL_OVAL_BOX()+2)
#define FL_OFLAT_BOX (Fl_Boxtype)(fl_define_FL_OVAL_BOX()+3)

extern FL_EXPORT Fl_Boxtype fl_define_FL_PLASTIC_UP_BOX();
#define FL_PLASTIC_UP_BOX fl_define_FL_PLASTIC_UP_BOX()
#define FL_PLASTIC_DOWN_BOX (Fl_Boxtype)(fl_define_FL_PLASTIC_UP_BOX()+1)
#define FL_PLASTIC_UP_FRAME (Fl_Boxtype)(fl_define_FL_PLASTIC_UP_BOX()+2)
#define FL_PLASTIC_DOWN_FRAME (Fl_Boxtype)(fl_define_FL_PLASTIC_UP_BOX()+3)
#define FL_PLASTIC_THIN_UP_BOX (Fl_Boxtype)(fl_define_FL_PLASTIC_UP_BOX()+4)
#define FL_PLASTIC_THIN_DOWN_BOX (Fl_Boxtype)(fl_define_FL_PLASTIC_UP_BOX()+5)
#define FL_PLASTIC_ROUND_UP_BOX (Fl_Boxtype)(fl_define_FL_PLASTIC_UP_BOX()+6)
#define FL_PLASTIC_ROUND_DOWN_BOX (Fl_Boxtype)(fl_define_FL_PLASTIC_UP_BOX()+7)

extern FL_EXPORT Fl_Boxtype fl_define_FL_GTK_UP_BOX();
#define FL_GTK_UP_BOX fl_define_FL_GTK_UP_BOX()
#define FL_GTK_DOWN_BOX (Fl_Boxtype)(fl_define_FL_GTK_UP_BOX()+1)
#define FL_GTK_UP_FRAME (Fl_Boxtype)(fl_define_FL_GTK_UP_BOX()+2)
#define FL_GTK_DOWN_FRAME (Fl_Boxtype)(fl_define_FL_GTK_UP_BOX()+3)
#define FL_GTK_THIN_UP_BOX (Fl_Boxtype)(fl_define_FL_GTK_UP_BOX()+4)
#define FL_GTK_THIN_DOWN_BOX (Fl_Boxtype)(fl_define_FL_GTK_UP_BOX()+5)
#define FL_GTK_THIN_UP_FRAME (Fl_Boxtype)(fl_define_FL_GTK_UP_BOX()+6)
#define FL_GTK_THIN_DOWN_FRAME (Fl_Boxtype)(fl_define_FL_GTK_UP_BOX()+7)
#define FL_GTK_ROUND_UP_BOX (Fl_Boxtype)(fl_define_FL_GTK_UP_BOX()+8)
#define FL_GTK_ROUND_DOWN_BOX (Fl_Boxtype)(fl_define_FL_GTK_UP_BOX()+9)

// conversions of box types to other boxtypes:
inline Fl_Boxtype fl_box(Fl_Boxtype b) {
  return (Fl_Boxtype)((b<FL_UP_BOX||b%4>1)?b:(b-2));
}
inline Fl_Boxtype fl_down(Fl_Boxtype b) {
  return (Fl_Boxtype)((b<FL_UP_BOX)?b:(b|1));
}
inline Fl_Boxtype fl_frame(Fl_Boxtype b) {
  return (Fl_Boxtype)((b%4<2)?b:(b+2));
}

// back-compatibility box types:
#define FL_FRAME FL_ENGRAVED_FRAME
#define FL_FRAME_BOX FL_ENGRAVED_BOX
#define FL_CIRCLE_BOX FL_ROUND_DOWN_BOX
#define FL_DIAMOND_BOX FL_DIAMOND_DOWN_BOX

/*@}*/	// group: Box Types

/**
   The labeltype() method sets the type of the label.
   
   The following standard label types are included:
   
   \todo	The doxygen comments are incomplete, and some labeltypes
   		are starting with an underscore. Also, there are three
		external functions undocumented (yet):
		  - fl_define_FL_SHADOW_LABEL()
		  - fl_define_FL_ENGRAVED_LABEL()
		  - fl_define_FL_EMBOSSED_LABEL()
*/
enum Fl_Labeltype {	// labeltypes:
  FL_NORMAL_LABEL	= 0,	///< draws the text (0)
  FL_NO_LABEL,			///< does nothing
  _FL_SHADOW_LABEL,		///< draws a drop shadow under the text
  _FL_ENGRAVED_LABEL,		///< draws edges as though the text is engraved
  _FL_EMBOSSED_LABEL,		///< draws edges as thought the text is raised
  _FL_MULTI_LABEL,		///< ?
  _FL_ICON_LABEL,		///< draws the icon associated with the text
  _FL_IMAGE_LABEL,		///< ?

  FL_FREE_LABELTYPE		///< first free labeltype to use for creating own labeltypes
};

/** 
  Sets the current  label type end return its corresponding Fl_Labeltype value. 
  @{
*/
#define FL_SYMBOL_LABEL FL_NORMAL_LABEL
extern Fl_Labeltype FL_EXPORT fl_define_FL_SHADOW_LABEL();
#define FL_SHADOW_LABEL fl_define_FL_SHADOW_LABEL()
extern Fl_Labeltype FL_EXPORT fl_define_FL_ENGRAVED_LABEL();
#define FL_ENGRAVED_LABEL fl_define_FL_ENGRAVED_LABEL()
extern Fl_Labeltype FL_EXPORT fl_define_FL_EMBOSSED_LABEL();
#define FL_EMBOSSED_LABEL fl_define_FL_EMBOSSED_LABEL()
/** @} */

/** \name Alignment Flags */
/*@{*/
/** Flags to control the label alignment. 
 *  This controls how the label is displayed next to or inside the widget. 
 *  The default value is FL_ALIGN_CENTER for most widgets, which centers the label
 *  inside the widget.
 *
 *  Flags can be or'd to achieve a combination of alignments.
 *  \see #FL_ALIGN_CENTER, etc.
 */
typedef unsigned Fl_Align;
  /** Align the label horizontally in the middle. */
const Fl_Align FL_ALIGN_CENTER		= (Fl_Align)0;
  /** Align the label at the top of the widget. Inside labels appear below the top,
   *  outside labels are drawn on top of the widget. */
const Fl_Align FL_ALIGN_TOP		= (Fl_Align)1;
  /** Align the label at the bottom of the widget. */
const Fl_Align FL_ALIGN_BOTTOM		= (Fl_Align)2;
  /** Align the label at the left of the widget. Inside labels appear left-justified
   *  starting at the left side of the widget, outside labels are right-justified and
   *  drawn to the left of the widget. */
const Fl_Align FL_ALIGN_LEFT		= (Fl_Align)4;
  /** Align the label to the right of the widget. */
const Fl_Align FL_ALIGN_RIGHT		= (Fl_Align)8;
  /** Draw the label inside of the widget. */
const Fl_Align FL_ALIGN_INSIDE		= (Fl_Align)16;
  /** If the label contains an image, draw the text on top of the image. */
const Fl_Align FL_ALIGN_TEXT_OVER_IMAGE	= (Fl_Align)32;
  /** If the label contains an image, draw the text below the image. */
const Fl_Align FL_ALIGN_IMAGE_OVER_TEXT	= (Fl_Align)0;
  /** All parts of the label that are lager than the widget will not be drawn . */
const Fl_Align FL_ALIGN_CLIP		= (Fl_Align)64;
  /** Wrap text that does not fit the width of the widget. */
const Fl_Align FL_ALIGN_WRAP		= (Fl_Align)128;
const Fl_Align FL_ALIGN_TOP_LEFT	= FL_ALIGN_TOP | FL_ALIGN_LEFT;
const Fl_Align FL_ALIGN_TOP_RIGHT	= FL_ALIGN_TOP | FL_ALIGN_RIGHT;
const Fl_Align FL_ALIGN_BOTTOM_LEFT	= FL_ALIGN_BOTTOM | FL_ALIGN_LEFT;
const Fl_Align FL_ALIGN_BOTTOM_RIGHT	= FL_ALIGN_BOTTOM | FL_ALIGN_RIGHT;
const Fl_Align FL_ALIGN_LEFT_TOP	= FL_ALIGN_TOP_LEFT;
const Fl_Align FL_ALIGN_RIGHT_TOP	= FL_ALIGN_TOP_RIGHT;
const Fl_Align FL_ALIGN_LEFT_BOTTOM	= FL_ALIGN_BOTTOM_LEFT;
const Fl_Align FL_ALIGN_RIGHT_BOTTOM	= FL_ALIGN_BOTTOM_RIGHT;
const Fl_Align FL_ALIGN_NOWRAP		= (Fl_Align)0; // for back compatability
/*@}*/

/** \name Font Numbers */
/*@{*/
/** A font number is an index into the internal font table.

    The following constants define the standard FLTK fonts:

 */
typedef int Fl_Font;

// standard fonts

const Fl_Font FL_HELVETICA              = 0;	///< Helvetica (or Arial) normal (0)
const Fl_Font FL_HELVETICA_BOLD         = 1;	///< Helvetica (or Arial) bold
const Fl_Font FL_HELVETICA_ITALIC       = 2;	///< Helvetica (or Arial) oblique
const Fl_Font FL_HELVETICA_BOLD_ITALIC  = 3;	///< Helvetica (or Arial) bold-oblique
const Fl_Font FL_COURIER                = 4;	///< Courier normal
const Fl_Font FL_COURIER_BOLD           = 5;	///< Courier bold 
const Fl_Font FL_COURIER_ITALIC         = 6;	///< Courier italic
const Fl_Font FL_COURIER_BOLD_ITALIC    = 7;	///< Courier bold-italic
const Fl_Font FL_TIMES                  = 8;	///< Times roman
const Fl_Font FL_TIMES_BOLD             = 9;	///< Times roman bold
const Fl_Font FL_TIMES_ITALIC           = 10;	///< Times roman italic
const Fl_Font FL_TIMES_BOLD_ITALIC      = 11;	///< Times roman bold-italic
const Fl_Font FL_SYMBOL                 = 12;	///< Standard symbol font
const Fl_Font FL_SCREEN                 = 13;	///< Default monospaced screen font
const Fl_Font FL_SCREEN_BOLD            = 14;	///< Default monospaced bold screen font
const Fl_Font FL_ZAPF_DINGBATS          = 15;	///< Zapf-dingbats font

const Fl_Font FL_FREE_FONT              = 16;	///< first one to allocate
const Fl_Font FL_BOLD                   = 1;	///< add this to helvetica, courier, or times
const Fl_Font FL_ITALIC                 = 2;	///< add this to helvetica, courier, or times
const Fl_Font FL_BOLD_ITALIC            = 3;	///< add this to helvetica, courier, or times

/*@}*/

/** Size of a font in pixels.
 *  This is the approximate height of a font in pixels.
 */
typedef int Fl_Fontsize;

extern FL_EXPORT Fl_Fontsize FL_NORMAL_SIZE;

/** \name Colors */
/*@{*/
/** The Fl_Color enumeration type holds a FLTK color value.

    Colors are either 8-bit indexes into a virtual colormap
    or 24-bit RGB color values.
    
    Color indices occupy the lower 8 bits of the value, while
    RGB colors occupy the upper 24 bits, for a byte organization of RGBI.
    
    \todo	enum Fl_Color needs some more comments for values,
    		see Fl/Enumerations.H
 */

enum Fl_Color {	// standard colors
  // These are used as default colors in widgets and altered as necessary
  FL_FOREGROUND_COLOR   = 0,	///< the default foreground color (0) used for labels and text
  FL_BACKGROUND2_COLOR  = 7,	///< the default background color for text, list, and valuator widgets
  FL_INACTIVE_COLOR	= 8,	///< the inactive foreground color
  FL_SELECTION_COLOR	= 15,	///< the default selection/highlight color

  // boxtypes generally limit themselves to these colors so
  // the whole ramp is not allocated:

  FL_GRAY0		= 32,	// 'A'
  FL_DARK3		= 39,	// 'H'
  FL_DARK2		= 45,   // 'N'
  FL_DARK1		= 47,	// 'P'
  FL_BACKGROUND_COLOR	= 49,	// 'R' default background color
  FL_LIGHT1		= 50,	// 'S'
  FL_LIGHT2		= 52,	// 'U'
  FL_LIGHT3		= 54,	// 'W'

  // FLTK provides a 5x8x5 color cube that is used with colormap visuals

  FL_BLACK		= 56,
  FL_RED		= 88,
  FL_GREEN		= 63,
  FL_YELLOW		= 95,
  FL_BLUE		= 216,
  FL_MAGENTA		= 248,
  FL_CYAN		= 223,
  FL_DARK_RED		= 72,

  FL_DARK_GREEN		= 60,
  FL_DARK_YELLOW	= 76,
  FL_DARK_BLUE		= 136,
  FL_DARK_MAGENTA	= 152,
  FL_DARK_CYAN		= 140,

  FL_WHITE		= 255
};

#define FL_FREE_COLOR		(Fl_Color)16
#define FL_NUM_FREE_COLOR	16
#define FL_GRAY_RAMP		(Fl_Color)32
#define FL_NUM_GRAY		24
#define FL_GRAY			FL_BACKGROUND_COLOR
#define FL_COLOR_CUBE		(Fl_Color)56
#define FL_NUM_RED		5
#define FL_NUM_GREEN		8
#define FL_NUM_BLUE		5

FL_EXPORT Fl_Color fl_inactive(Fl_Color c);
FL_EXPORT Fl_Color fl_contrast(Fl_Color fg, Fl_Color bg);
FL_EXPORT Fl_Color fl_color_average(Fl_Color c1, Fl_Color c2, float weight);
inline Fl_Color fl_lighter(Fl_Color c) { return fl_color_average(c, FL_WHITE, .67f); }
inline Fl_Color fl_darker(Fl_Color c) { return fl_color_average(c, FL_BLACK, .67f); }
inline Fl_Color fl_rgb_color(uchar r, uchar g, uchar b) {
  if (!r && !g && !b) return FL_BLACK;
  else return (Fl_Color)(((((r << 8) | g) << 8) | b) << 8);
}
inline Fl_Color fl_rgb_color(uchar g) {
  if (!g) return FL_BLACK;
  else return (Fl_Color)(((((g << 8) | g) << 8) | g) << 8);
}
inline Fl_Color fl_gray_ramp(int i) {return (Fl_Color)(i+FL_GRAY_RAMP);}
inline Fl_Color fl_color_cube(int r, int g, int b) {
  return (Fl_Color)((b*FL_NUM_RED + r) * FL_NUM_GREEN + g + FL_COLOR_CUBE);}

//*@}*/		// group: Colors

/** \name Cursors

    The following constants define the mouse cursors that are available in FLTK.
    
    The double-headed arrows are bitmaps provided by FLTK on X, the others
    are provided by system-defined cursors.
    
    \todo	enum Fl_Cursor needs some more comments for values
    		(and maybe an image), see Fl/Enumerations.H
*/
enum Fl_Cursor {	// standard cursors
  FL_CURSOR_DEFAULT	= 0,
  FL_CURSOR_ARROW	= 35,
  FL_CURSOR_CROSS	= 66,
  FL_CURSOR_WAIT	= 76,
  FL_CURSOR_INSERT	= 77,
  FL_CURSOR_HAND	= 31,
  FL_CURSOR_HELP	= 47,
  FL_CURSOR_MOVE	= 27,
  // fltk provides bitmaps for these:
  FL_CURSOR_NS		= 78,
  FL_CURSOR_WE		= 79,
  FL_CURSOR_NWSE	= 80,
  FL_CURSOR_NESW	= 81,
  FL_CURSOR_NONE	= 255,
  // for back compatability (non MSWindows ones):
  FL_CURSOR_N		= 70,
  FL_CURSOR_NE		= 69,
  FL_CURSOR_E		= 49,
  FL_CURSOR_SE		= 8,
  FL_CURSOR_S		= 9,
  FL_CURSOR_SW		= 7,
  FL_CURSOR_W		= 36,
  FL_CURSOR_NW		= 68
  //FL_CURSOR_NS	= 22,
  //FL_CURSOR_WE	= 55,
};

enum { // values for "when" passed to Fl::add_fd()
  FL_READ = 1,
  FL_WRITE = 4,
  FL_EXCEPT = 8
};

enum Fl_Mode { // visual types and Fl_Gl_Window::mode() (values match Glut)
  FL_RGB	= 0,
  FL_INDEX	= 1,
  FL_SINGLE	= 0,
  FL_DOUBLE	= 2,
  FL_ACCUM	= 4,
  FL_ALPHA	= 8,
  FL_DEPTH	= 16,
  FL_STENCIL	= 32,
  FL_RGB8	= 64,
  FL_MULTISAMPLE= 128,
  FL_STEREO     = 256,
  FL_FAKE_SINGLE = 512	// Fake single buffered windows using double-buffer
};

// image alpha blending

#define FL_IMAGE_WITH_ALPHA 0x40000000

// damage masks

enum Fl_Damage {
  FL_DAMAGE_CHILD    = 0x01,
  FL_DAMAGE_EXPOSE   = 0x02,
  FL_DAMAGE_SCROLL   = 0x04,
  FL_DAMAGE_OVERLAY  = 0x08,
  FL_DAMAGE_USER1    = 0x10,
  FL_DAMAGE_USER2    = 0x20,
  FL_DAMAGE_ALL      = 0x80
};

// FLTK 1.0.x compatibility definitions...
#  ifdef FLTK_1_0_COMPAT
#    define contrast	fl_contrast
#    define down	fl_down
#    define frame	fl_frame
#    define inactive	fl_inactive
#  endif // FLTK_1_0_COMPAT

#endif

//
// End of "$Id$".
//