/*
 * Types.h -- Types used by the Zinc widget.
 *
 * Authors		: Patrick Lecoanet.
 * Creation date	: Mon Feb  1 12:13:24 1999
 *
 * $Id$
 */

/*
 *  Copyright (c) 1993 - 1999 CENA, Patrick Lecoanet --
 *
 * This code 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 code 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 code; if not, write to the Free
 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */


#ifndef _Types_h
#define _Types_h

#define NEED_REAL_STDIO
#include <tk.h>
#include <X11/Xutil.h>
#ifdef PTK
#include <tkVMacro.h>
#endif
#include <stdio.h>


#ifdef __CPLUSPLUS__
extern "C" {
#endif


typedef void		*ZnItemClassId;
typedef	void		*ZnItemId;

typedef double		ZnReal;	/* Keep it a double for GPC & libart. */
typedef int		ZnBool;	/* Keep it an int to keep Tk & GPC happy */
typedef ZnReal		ZnPos;
typedef ZnReal		ZnDim;
typedef XColor		*ZnColor;
typedef Tk_Font		ZnFont;
typedef Tk_Window	ZnWindow;
typedef void		*ZnPtr;
typedef Tk_Image	ZnImage;

typedef struct {
  ZnPos	x, y;
} ZnPoint;

typedef struct {
  ZnPos	x, y, w, h;
} ZnRect;

typedef struct {
  int		num_points;
  ZnPoint	*points;
} ZnContour;

/*
 * contour1/hole1 can be used to store a single contour
 * without having to alloc the holes & contours arrays.
 */
typedef struct {
  int		num_contours;
  ZnBool	*holes;
  ZnContour	*contours;
  ZnBool	*cw;
  ZnBool	hole1;
  ZnContour	contour1;
  ZnBool	cw1;
} ZnPoly;
  
/*
 * ZnBBox: orig is into the area while corner is not.
 * Thus the test: ((bbox.orig.x == bbox.corner.x) ||
 *                 (bbox.orig.y == bbox.corner.y))
 * tells whether the bbox is empty or not.
 * When interpreting bboxes the X coordinate system is
 * the norm. x goes from left toward the right and y
 * goes from the top toward the bottom. Bboxes are
 * always axes aligned.
 */
typedef struct {
  ZnPoint	orig, corner;
} ZnBBox;

/*
 * Operator constants for the coord method.
 */
#define COORDS_READ		0
#define COORDS_READ_ALL		1
#define COORDS_REPLACE		2
#define COORDS_REPLACE_ALL	3
#define COORDS_ADD		4
#define COORDS_ADD_LAST		5
#define COORDS_REMOVE		6
  
/*
 * Types and constants for attribute processing.
 */
typedef struct {
  int	type;
  char	*name;
  Tk_Uid uid;
  int	offset;
  int	bool_bit;
  int	flags;
  ZnBool read_only;
} ZnAttrConfig;

/*
 * When adding new type in the following enum
 * do not forget to update attribute_type_strings
 * in Item.c.
 */
#define	ZN_CONFIG_END		0
#define ZN_CONFIG_COLOR		1
#define ZN_CONFIG_BOOL		2
#define ZN_CONFIG_PATTERN	3
#define ZN_CONFIG_TEXT		4
#define ZN_CONFIG_FONT		5
#define ZN_CONFIG_BORDER	6
#define ZN_CONFIG_RELIEF	7
#define ZN_CONFIG_DIM		8
#define ZN_CONFIG_PRI		9
#define ZN_CONFIG_JUSTIFY	10
#define ZN_CONFIG_AUTO_JUSTIFY	11
#define ZN_CONFIG_LINE_END	12
#define ZN_CONFIG_LABEL_FORMAT	13
#define ZN_CONFIG_LINE_STYLE	14
#define ZN_CONFIG_LINE_SHAPE	15
#define ZN_CONFIG_ITEM		16
#define ZN_CONFIG_ANGLE		17
#define ZN_CONFIG_INT		18
#define ZN_CONFIG_UINT		19
#define ZN_CONFIG_POINT		20
#define ZN_CONFIG_RECT		21
#define ZN_CONFIG_PATTERNS	22
#define ZN_CONFIG_ANCHOR	23
#define ZN_CONFIG_TAGS		24
#define ZN_CONFIG_POINTS	25
#define ZN_CONFIG_MAP_INFO	26
#define ZN_CONFIG_IMAGE		27
#define ZN_CONFIG_LEADER_ANCHORS 28
#define ZN_CONFIG_JOIN_STYLE	29
#define	ZN_CONFIG_CAP_STYLE	30
#define	ZN_CONFIG_GRADIENT_GEOM	31
#define	ZN_CONFIG_GRADIENT_COLOR 32
#define	ZN_CONFIG_WINDOW	33

#define ZN_DRAW_FLAG	1 << 0
#define	ZN_COORDS_FLAG	1 << 1
#define ZN_TRANSFO_FLAG	1 << 2
#define	ZN_REPICK_FLAG	1 << 3
#define	ZN_BORDER_FLAG	1 << 4
#define	ZN_CLFC_FLAG	1 << 5	/* Clear Label Format Cache. */
#define ZN_IMAGE_FLAG	1 << 6	/* Update image pointer. */
#define ZN_VIS_FLAG	1 << 7	/* Visibility has changed. */
#define ZN_MOVED_FLAG	1 << 8	/* Item has moved. */
#define ZN_ITEM_FLAG	1 << 9	/* Signal a change in an item type attribute. */
#define ZN_MAP_INFO_FLAG	1 << 10	/* Update mapinfo pointer. */
#define ZN_LAYOUT_FLAG	1 << 10	/* A layout need update. */
#define ZN_POLAR_FLAG	1 << 11	/* Signal a cartesian to polar change. */
#define ZN_CARTESIAN_FLAG	1 << 12	/* Signal a polar to cartesian change. */
#define ZN_TILE_FLAG	1 << 13	/* Update tile pointer. */
#define ZN_WINDOW_FLAG	1 << 14	/* Signal a change in a window type attribute. */

/*
 * Type and constant values for alignments.
 */
typedef char	ZnJustify;
#define ZnJustifyLeft	TK_JUSTIFY_LEFT
#define ZnJustifyRight	TK_JUSTIFY_RIGHT
#define ZnJustifyCenter	TK_JUSTIFY_CENTER

/*
 * Type and constant values for anchors.
 */
typedef Tk_Anchor	ZnAnchor;
#define ZnAnchorN	TK_ANCHOR_N
#define ZnAnchorS	TK_ANCHOR_S
#define ZnAnchorE	TK_ANCHOR_E
#define ZnAnchorW	TK_ANCHOR_W
#define ZnAnchorNE	TK_ANCHOR_NE
#define ZnAnchorNW	TK_ANCHOR_NW
#define ZnAnchorSE	TK_ANCHOR_SE
#define ZnAnchorSW	TK_ANCHOR_SW
#define ZnAnchorCenter	TK_ANCHOR_CENTER

/*
 * Type and constant values for borders.
 */
typedef unsigned char	Border;
#define NO_BORDER	0
#define LEFT_BORDER	1
#define RIGHT_BORDER	2
#define TOP_BORDER	4
#define BOTTOM_BORDER	8
#define CONTOUR_BORDER	(LEFT_BORDER|RIGHT_BORDER|TOP_BORDER|BOTTOM_BORDER)
#define COUNTER_OBLIQUE	16
#define OBLIQUE		32

#define LEFT_SPEC		"left"
#define RIGHT_SPEC		"right"
#define	TOP_SPEC		"top"
#define BOTTOM_SPEC		"bottom"
#define CONTOUR_SPEC		"contour"
#define COUNTER_OBLIQUE_SPEC	"counteroblique"
#define OBLIQUE_SPEC		"oblique"
#define NO_BORDER_SPEC		"noborder"

/*
 * Type and constant values for line styles, line shapes and line ends.
 */
typedef unsigned char	LineStyle;
typedef unsigned char	LineEndStyle;
typedef unsigned char	LineShape;

/* LineStyle */
#define LINE_SIMPLE			0
#define LINE_DASHED			1
#define LINE_MIXED			2
#define LINE_DOTTED			3
/* LineShape */
#define LINE_STRAIGHT			0
#define LINE_LEFT_LIGHTNING        	1
#define LINE_LEFT_CORNER		2
#define LINE_DOUBLE_LEFT_CORNER		3
#define LINE_RIGHT_LIGHTNING		4
#define LINE_RIGHT_CORNER		5
#define LINE_DOUBLE_RIGHT_CORNER	6

#define SIMPLE_SPEC		"simple"
#define	DASHED_SPEC		"dashed"
#define DOTTED_SPEC		"dotted"
#define	MIXED_SPEC		"mixed"

#define STRAIGHT_SPEC		"straight"
#define RIGHT_LIGHTNING_SPEC	"rightlightning"
#define LEFT_LIGHTNING_SPEC	"leftlightning"
#define RIGHT_CORNER_SPEC	"rightcorner"
#define LEFT_CORNER_SPEC	"leftcorner"
#define DOUBLE_RIGHT_CORNER_SPEC  "doublerightcorner"
#define DOUBLE_LEFT_CORNER_SPEC	"doubleleftcorner"

/*
 * Type and constant values for relief styles.
 */
typedef int	ReliefStyle;	/* Keep it an int to keep Tk happy */
#define RELIEF_BEVEL_OUT	TK_RELIEF_RAISED
#define RELIEF_FLAT		TK_RELIEF_FLAT
#define RELIEF_BEVEL_IN		TK_RELIEF_SUNKEN
#define RELIEF_GROOVE		TK_RELIEF_GROOVE
#define RELIEF_RIDGE		TK_RELIEF_RIDGE
/*
 * Number of steps for relief drawing. This translate in
 * RELIEF_STEPS*2+1 color steps in the color gradient.
 */
#define RELIEF_STEPS	6

/*
 * Type and constant values for automatic alignments.
 */
typedef struct {
  ZnBool	automatic;
  ZnJustify	align[3];
} AutoAlign;
#define AA_LEFT			0
#define AA_CENTER		1
#define AA_RIGHT		2

#define AA_LEFT_SPEC		"l"
#define AA_CENTER_SPEC		"c"
#define AA_RIGHT_SPEC		"r"
#define AA_AUTO_SPEC		"-"

/*
 * Type for leader anchors.
 */
typedef struct {
  int		left_x;		/* left leader anchor field or percent of bbox */
  int		right_x;	/* right leader anchor field or percent of bbox */
  short		left_y;		/* left leader percent of bbox or < 0 if field */
  short		right_y;	/* right leader percent of bbox or < 0 if field */
} LeaderAnchorsStruct, *LeaderAnchors;

#define ZnPixel(color)		((color)->pixel)
#define ZnFontId(font)		(Tk_FontId(font))
#define ZnWindowId(win)		(Tk_WindowId(win))
#define ZnTextWidth(font, text, len) (Tk_TextWidth(font, text, len))
#define ZnMalloc(size)		(ckalloc(size))
#define ZnFree(ptr)		(ckfree((char *)(ptr)))
#define ZnRealloc(ptr, size)	(ckrealloc((void *)(ptr), size))
#define ZnWarning(msg)		(fprintf(stderr, "%s\n", (msg)))
  
#define ZnUnspecifiedPattern	None
#define ZnUnspecifiedImage	None
#define ZnUnspecifiedColor	NULL
#define ZN_OK			TCL_OK
#define ZN_ERROR		TCL_ERROR
#define ZN_NO_ITEM		NULL

/*
 * Various constants used by items.
 */
#define ZN_ANY_CIRCLES		-1

/*
 * Constants for item parts. The fields or item indexable parts are coded
 * as positive or null integers. The item specific parts (not indexable) are
 * coded as negatives begining at -2 up to -9 which is the current limit. The
 * -1 value is reserved to indicate no part.
 */

#define PART_NUMBER_TO_BIT(part)	(1 << (ABS(part)-2))
#define ZN_NO_PART		-1


/*
 * Some flags macros.
 */
#define ISSET(var, mask)	((var) & (mask))
#define ISCLEAR(var, mask)	(((var) & (mask)) == 0)
#define SET(var,mask)		((var) |= (mask))
#define CLEAR(var, mask)	((var) &= ~(mask))
#define ASSIGN(var, mask, bool)	((bool) ? SET((var), (mask)) : CLEAR((var), (mask)))


#ifdef __CPLUSPLUS__
}
#endif

#endif /* _Types_h */