/* AbiSource Program Utilities
 * Copyright (C) 1998 AbiSource, Inc.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 * 02111-1307, USA.
 */




#ifndef EV_EDITBITS_H
#define EV_EDITBITS_H

#include "ut_types.h"

/*****************************************************************
******************************************************************
** we compress virtual key code and mouse ops along with modifier
** keys into a single long word in order to facilitate binding lookups.
******************************************************************
*****************************************************************/


typedef UT_uint32 EV_EditMouseContext;								/* may not be ORed */
// NB: when adding new values, you have to also increase EV_COUNT_EMC
// defined at the bottom of this file -- if you dont you will spend
// hours trying to work out why your functions do not get called, as
// I did :) (Tomas)
//
// Foddex:	the values for the various contexts were bad. The EV_EMC_ToNumber
// 			define is used to make an index out of the context bits. It is
//			used assuming that it will never yield a value larger than or
//			equal to EV_COUNT_EMC. However, the original values were defined
//			in such a way that it often was bigger dan EV_COUNT_EMC. E.g.
//			0xe0000000 >> 27 = 28, which is bigger than EV_COUNT_EMC. I therefor
//			rearranged the values. I just hope noone ever was so stupid to use 
//			hardcoded values...
#define EV_EMC__MASK__			((EV_EditMouseContext) 0xf8000000)
#define EV_EMC_UNKNOWN			((EV_EditMouseContext) 0x08000000)
#define EV_EMC_TEXT				((EV_EditMouseContext) 0x10000000)
#define EV_EMC_LEFTOFTEXT		((EV_EditMouseContext) 0x18000000)
#define EV_EMC_MISSPELLEDTEXT	((EV_EditMouseContext) 0x20000000)
#define EV_EMC_IMAGE			((EV_EditMouseContext) 0x28000000)
#define EV_EMC_IMAGESIZE		((EV_EditMouseContext) 0x30000000)
#define EV_EMC_FIELD			((EV_EditMouseContext) 0x38000000)
#define EV_EMC_HYPERLINK		((EV_EditMouseContext) 0x40000000)
#define EV_EMC_RIGHTOFTEXT		((EV_EditMouseContext) 0x48000000)
#define EV_EMC_REVISION		    ((EV_EditMouseContext) 0x50000000)
#define EV_EMC_VLINE            ((EV_EditMouseContext) 0x58000000)
#define EV_EMC_HLINE            ((EV_EditMouseContext) 0x60000000)
#define EV_EMC_FRAME            ((EV_EditMouseContext) 0x68000000)
#define EV_EMC_VISUALTEXTDRAG   ((EV_EditMouseContext) 0x70000000)
#define EV_EMC_TOPCELL          ((EV_EditMouseContext) 0x78000000)
#define EV_EMC_TOC              ((EV_EditMouseContext) 0x80000000)
#define EV_EMC_POSOBJECT        ((EV_EditMouseContext) 0x88000000)
#define EV_EMC_MATH             ((EV_EditMouseContext) 0x90000000)
#define EV_EMC_EMBED            ((EV_EditMouseContext) 0x98000000)

// NB: the following two values are not included in EV_COUNT_EMC
// because they are not used in the bindings, and are, therefore,
// never processed by bet the mouse routines, consequently they
// do not have to follow the rules for EV_EMC ( and they dont so that
// they would not waste available values, which we will soon run
// out off); they are here so that contextHyperlink can create
// different menus in dependence on the nature of the text of
// the hyperlink

#define EV_EMC_HYPERLINKTEXT      ((EV_EditMouseContext) 0x000000002)
#define EV_EMC_HYPERLINKMISSPELLED ((EV_EditMouseContext) 0x000000001)
// RIVERA
#define EV_EMC_ANNOTATIONTEXT      ((EV_EditMouseContext) 0x000000003)
#define EV_EMC_ANNOTATIONMISSPELLED ((EV_EditMouseContext) 0x000000004)
#define EV_EMC_RDFANCHORTEXT      ((EV_EditMouseContext) 0x000000005)
// dynamic values will be generated starting from EV_EMC_AVAIL, should
// be changed if needed.
#define EV_EMC_AVAIL			  ((EV_EditMouseContext) 0x000000007)

#define EV_EMC_ToNumber(emc)			((((emc)&EV_EMC__MASK__)>>27)-1)
#define EV_EMC_FromNumber(n)			(((n+1)<<27)&EV_EMC__MASK__)

typedef UT_uint32 EV_EditModifierState;								/* may be ORed */
#define EV_EMS__MASK__			((EV_EditModifierState) 0x07000000)
#define EV_EMS_SHIFT			((EV_EditModifierState) 0x01000000)
#define EV_EMS_CONTROL			((EV_EditModifierState) 0x02000000)
#define EV_EMS_ALT				((EV_EditModifierState) 0x04000000)
#define EV_EMS_ToNumber(ems)			(((ems)&EV_EMS__MASK__)>>24)
#define EV_EMS_ToNumberNoShift(ems)		(((ems)&EV_EMS__MASK__)>>25)	/* exclude shift */
#define EV_EMS_FromNumber(n)			((((n)<<24)&EV_EMS__MASK__))
#define EV_EMS_FromNumberNoShift(n)		((((n)<<25)&EV_EMS__MASK__))


typedef UT_uint32 EV_EditKeyPress;									/* may be ORed */
#define EV_EKP__MASK__			((EV_EditKeyPress)		0x00880000)
#define EV_EKP_PRESS			((EV_EditKeyPress)		0x00800000)
#define EV_EKP_NAMEDKEY			((EV_EditKeyPress)		0x00080000)
#define EV_NamedKey(xxxx)	(EV_EKP_NAMEDKEY | (xxxx))


typedef UT_uint32 EV_EditMouseButton;								/* may not be ORed */
#define EV_EMB__MASK__			((EV_EditMouseButton)	0x00700000)
#define EV_EMB_BUTTON0			((EV_EditMouseButton)	0x00100000)	/* no buttons down */
#define EV_EMB_BUTTON1			((EV_EditMouseButton)	0x00200000)
#define EV_EMB_BUTTON2			((EV_EditMouseButton)	0x00300000)
#define EV_EMB_BUTTON3			((EV_EditMouseButton)	0x00400000)
#define EV_EMB_BUTTON4			((EV_EditMouseButton)	0x00500000)
#define EV_EMB_BUTTON5			((EV_EditMouseButton)	0x00600000)
#define EV_EMB_ToNumber(emb)	(((emb)&EV_EMB__MASK__)>>20)


typedef UT_uint32 EV_EditMouseOp;									/* may not be ORed */
#define EV_EMO__MASK__			((EV_EditMouseOp)		0x00070000)
#define EV_EMO_SINGLECLICK		((EV_EditMouseOp)		0x00010000)
#define EV_EMO_DOUBLECLICK		((EV_EditMouseOp)		0x00020000)
#define EV_EMO_DRAG				((EV_EditMouseOp)		0x00030000)	/* drag */
#define EV_EMO_DOUBLEDRAG		((EV_EditMouseOp)		0x00040000)	/* drag following doubleclick */
#define EV_EMO_RELEASE			((EV_EditMouseOp)		0x00050000)	/* release following singleclick */
#define EV_EMO_DOUBLERELEASE	((EV_EditMouseOp)		0x00060000)	/* release following doubleclick */
#define EV_EMO_ToNumber(emb)	(((emb)&EV_EMO__MASK__)>>16)
#define EV_EMO_FromNumber(n)	((((n)<<16)&EV_EMO__MASK__))


typedef UT_uint32 EV_EditVirtualKey;								/* may not be ORed */
#define EV_EVK__MASK__			((EV_EditVirtualKey)	0x0000ffff)
#define EV_EVK_ToNumber(evk)	(((evk)&EV_EVK__MASK__))
#define EV_NVK_ToNumber(nvk)	(((nvk)&EV_EVK__MASK__))


typedef UT_uint32 EV_EditBits;	/* union of all the above bits */

// the EV_COUNT_ give the number of unique combinations
// currently defined in the bits above.

#define EV_COUNT_EMS			8		// combinations under 'OR' (including 0)
#define EV_COUNT_EMS_NoShift	(EV_COUNT_EMS/2)

#define EV_COUNT_EMB			6		// simple count (not 'OR')
#define EV_COUNT_EMO			6		// simple count (not 'OR')
#define EV_COUNT_EMC			19		// simple count (not 'OR')

#define EV_IsMouse(eb)			(((eb) & EV_EMO__MASK__))
#define EV_IsKeyboard(eb)		(((eb) & EV_EKP__MASK__))

#endif /* EV_EDITBITS_H */
