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/*
* Item.h -- Header to access items' common state and functions.
*
* Authors : Patrick Lecoanet.
* Creation date :
*
* $Id: Item.h 1897 2008-01-22 08:33:42Z lemort $
*/
/*
* Copyright (c) 1996 - 2005 CENA, Patrick Lecoanet --
*
* See the file "Copyright" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
*/
#ifndef _Item_h
#define _Item_h
#include "PostScript.h"
#include "Attrs.h"
#include "Types.h"
#include "List.h"
#include "Field.h"
#include <X11/Xlib.h>
#include <tkInt.h>
/*
* Types and constants for attribute processing.
*/
typedef struct _ZnAttrConfig {
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_BOOL 1
#define ZN_CONFIG_BITMAP 2
#define ZN_CONFIG_BITMAP_LIST 3
#define ZN_CONFIG_STRING 4
#define ZN_CONFIG_FONT 5
#define ZN_CONFIG_EDGE_LIST 6
#define ZN_CONFIG_RELIEF 7
#define ZN_CONFIG_DIM 8
#define ZN_CONFIG_PRI 9
#define ZN_CONFIG_ALIGNMENT 10
#define ZN_CONFIG_AUTO_ALIGNMENT 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_ANCHOR 21
#define ZN_CONFIG_TAG_LIST 22
#define ZN_CONFIG_MAP_INFO 23
#define ZN_CONFIG_IMAGE 24
#define ZN_CONFIG_LEADER_ANCHORS 25
#define ZN_CONFIG_JOIN_STYLE 26
#define ZN_CONFIG_CAP_STYLE 27
#define ZN_CONFIG_GRADIENT 28
#define ZN_CONFIG_GRADIENT_LIST 29
#define ZN_CONFIG_WINDOW 30
#define ZN_CONFIG_ALPHA 31
#define ZN_CONFIG_FILL_RULE 32
#define ZN_CONFIG_SHORT 33
#define ZN_CONFIG_USHORT 34
#define ZN_CONFIG_CHAR 35
#define ZN_CONFIG_UCHAR 36
#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 << 11 /* A layout need update. */
#define ZN_POLAR_FLAG 1 << 12 /* Signal a cartesian to polar change. */
#define ZN_CARTESIAN_FLAG 1 << 13 /* Signal a polar to cartesian change. */
#define ZN_TILE_FLAG 1 << 14 /* Update tile pointer. */
#define ZN_WINDOW_FLAG 1 << 15 /* Signal a change in a window type attribute. */
/*
* This constant marks a non existant item
*/
#define ZN_NO_ITEM NULL
/*
* Constants for item parts. The item indexable parts (named fields) are coded
* as positive or null integers. The item specific parts (not indexable) are
* coded as negatives beginning at -2 up to -9 which is the current limit. The
* -1 value is reserved to indicate no part.
*/
#define ZnPartToBit(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)))
/*
* Item flags values.
*/
#define ZN_VISIBLE_BIT (1<<0)
#define ZN_SENSITIVE_BIT (1<<1)
#define ZN_CATCH_EVENT_BIT (1<<2)
#define ZN_UPDATE_DEPENDENT_BIT (1<<3)
#define ZN_COMPOSE_SCALE_BIT (1<<4)
#define ZN_COMPOSE_ROTATION_BIT (1<<5)
#define ZN_COMPOSE_ALPHA_BIT (1<<6)
/*
* Must be kept one greater than the last flag shift count.
*/
#define ZN_PRIVATE_FLAGS_OFFSET 7
/*
* Operator constants for the coord method.
*/
#define ZN_COORDS_READ 0
#define ZN_COORDS_READ_ALL 1
#define ZN_COORDS_REPLACE 2
#define ZN_COORDS_REPLACE_ALL 3
#define ZN_COORDS_ADD 4
#define ZN_COORDS_ADD_LAST 5
#define ZN_COORDS_REMOVE 6
struct _ZnWInfo;
struct _ZnTransfo;
/*
* Item record header --
*/
typedef struct _ZnItemStruct {
/* Private data */
unsigned int id;
ZnList tags;
struct _ZnWInfo *wi; /* The widget this item is on */
struct _ZnItemClassStruct *class; /* item class */
struct _ZnItemStruct *previous; /* previous item in group list */
struct _ZnItemStruct *next; /* next item in group list */
struct _ZnItemStruct *parent;
ZnBBox item_bounding_box; /* device item bounding box */
/* Common attributes */
unsigned short flags;
unsigned short part_sensitive; /* Currently limited to 16 parts per item */
unsigned short inv_flags;
unsigned short priority;
struct _ZnTransfo *transfo;
struct _ZnItemStruct *connected_item; /* Item this item is connected to */
#ifdef GL
#ifdef GL_LIST
GLuint gl_list; /* Display list storing the item graphics */
#endif
#endif
} ZnItemStruct, *ZnItem;
typedef struct _ZnToAreaStruct {
Tk_Uid tag_uid;
ZnBool enclosed;
ZnItem in_group;
ZnBool report;
ZnBool recursive;
ZnBool override_atomic;
ZnBBox *area;
} ZnToAreaStruct, *ZnToArea;
typedef struct _ZnPickStruct {
int aperture;
ZnItem in_group;
ZnItem start_item;
ZnBool recursive;
ZnBool override_atomic;
ZnPoint *point;
ZnItem a_item;
int a_part;
} ZnPickStruct, *ZnPick;
/*
* Item class record --
*/
typedef int (*ZnItemInitMethod)(ZnItem item, int *argc, Tcl_Obj *CONST *args[]);
typedef int (*ZnItemConfigureMethod)(ZnItem item, int argc, Tcl_Obj *CONST args[],
int *flags);
typedef int (*ZnItemQueryMethod)(ZnItem item, int argc, Tcl_Obj *CONST args[]);
typedef void (*ZnItemCloneMethod)(ZnItem item);
typedef void (*ZnItemDestroyMethod)(ZnItem item);
typedef void (*ZnItemDrawMethod)(ZnItem item);
typedef void (*ZnItemPreRenderMethod)(ZnItem item);
typedef void (*ZnItemRenderMethod)(ZnItem item);
typedef void (*ZnItemComputeCoordinatesMethod)(ZnItem item, ZnBool force);
typedef int (*ZnItemToAreaMethod)(ZnItem item, ZnToArea ta);
typedef ZnReal (*ZnItemPickMethod)(ZnItem item, ZnPick ps);
typedef ZnBool (*ZnItemIsSensitiveMethod)(ZnItem item, int part);
typedef struct _ZnFieldSetStruct* (*ZnItemGetFieldSetMethod)(ZnItem item);
typedef int (*ZnItemContourMethod)(ZnItem item, int cmd, int index, ZnPoly *poly);
typedef void (*ZnItemPickVertexMethod)(ZnItem item, ZnPoint *p, int *contour,
int *vertex, int *o_vertex);
typedef void (*ZnItemGetAnchorMethod)(ZnItem item, Tk_Anchor anchor, ZnPoint *p);
typedef ZnBool (*ZnItemGetClipVerticesMethod)(ZnItem item, ZnTriStrip *tristrip);
typedef ZnBool (*ZnItemGetContoursMethod)(ZnItem item, ZnPoly *poly);
typedef int (*ZnItemCoordsMethod)(ZnItem item, int contour, int index, int cmd,
ZnPoint **points, char **controls, unsigned int *num_points);
typedef void (*ZnItemInsertCharsMethod)(ZnItem item, int field, int *index,
char *chars);
typedef void (*ZnItemDeleteCharsMethod)(ZnItem item, int field, int *first,
int *last);
typedef void (*ZnItemCursorMethod)(ZnItem item, int field, int index);
typedef int (*ZnItemIndexMethod)(ZnItem item, int field, Tcl_Obj *index_spec,
int *index);
typedef int (*ZnItemPartMethod)(ZnItem item, Tcl_Obj **part_spec, int *part);
typedef int (*ZnItemSelectionMethod)(ZnItem item, int field, int offset,
char *chars, int max_chars);
typedef int (*ZnItemPostScriptMethod)(ZnItem item, ZnBool prepass, ZnBBox *area);
typedef void *ZnItemClassId;
#define ZN_CLASS_HAS_ANCHORS (1<<0)
#define ZN_CLASS_ONE_COORD (1<<1)
typedef struct _ZnItemClassStruct {
char *name;
unsigned int size;
ZnAttrConfig *attr_desc;
unsigned int num_parts; /* 0 if no special parts, else
* gives how many parts exist. */
int flags; /* HAS_ANCHORS, ONE_COORD */
int pos_offset; /* Offset of -position attrib, */
/* if any, -1 otherwise. */
ZnItemInitMethod Init;
ZnItemCloneMethod Clone;
ZnItemDestroyMethod Destroy;
ZnItemConfigureMethod Configure;
ZnItemQueryMethod Query;
ZnItemGetFieldSetMethod GetFieldSet;
ZnItemGetAnchorMethod GetAnchor;
ZnItemGetClipVerticesMethod GetClipVertices;
ZnItemGetContoursMethod GetContours;
ZnItemCoordsMethod Coords;
ZnItemInsertCharsMethod InsertChars;
ZnItemDeleteCharsMethod DeleteChars;
ZnItemCursorMethod Cursor;
ZnItemIndexMethod Index;
ZnItemPartMethod Part;
ZnItemSelectionMethod Selection;
ZnItemContourMethod Contour;
ZnItemComputeCoordinatesMethod ComputeCoordinates;
ZnItemToAreaMethod ToArea;
ZnItemDrawMethod Draw;
ZnItemPreRenderMethod PreRender;
ZnItemRenderMethod Render;
ZnItemIsSensitiveMethod IsSensitive;
ZnItemPickMethod Pick;
ZnItemPickVertexMethod PickVertex;
ZnItemPostScriptMethod PostScript;
} ZnItemClassStruct, *ZnItemClass;
/*
**********************************************************************************
*
* Generic methods for all items.
*
**********************************************************************************
*/
extern struct _ZnITEM {
ZnItem (*CloneItem)(ZnItem model);
void (*DestroyItem)(ZnItem item);
int (*ConfigureItem)(ZnItem item, int field, int argc, Tcl_Obj *CONST args[],
ZnBool init);
int (*QueryItem)(ZnItem item, int field, int argc, Tcl_Obj *CONST args[]);
void (*InsertItem)(ZnItem item, ZnItem group, ZnItem mark_item, ZnBool before);
void (*UpdateItemPriority)(ZnItem item, ZnItem mark_item, ZnBool before);
void (*UpdateItemDependency)(ZnItem item, ZnItem old_connection);
void (*ExtractItem)(ZnItem item);
void (*SetId)(ZnItem item);
void (*FreeId)(ZnItem item);
void (*AddTag)(ZnItem item, Tk_Uid tag);
void (*RemoveTag)(ZnItem item, Tk_Uid tag);
void (*FreeTags)(ZnItem item);
ZnBool (*HasTag)(ZnItem item, Tk_Uid tag);
void (*ResetTransfo)(ZnItem item);
void (*SetTransfo)(ZnItem item, struct _ZnTransfo *t);
void (*TranslateItem)(ZnItem item, ZnReal tx, ZnReal ty, ZnBool abs);
void (*ScaleItem)(ZnItem item, ZnReal sx, ZnReal sy, ZnPoint *p);
void (*SkewItem)(ZnItem item, ZnReal x_skew, ZnReal y_skew);
void (*RotateItem)(ZnItem item, ZnReal angle, ZnBool deg, ZnPoint *p);
void (*Invalidate)(ZnItem item, int reason);
void (*InvalidateItems)(ZnItem group, ZnItemClass item_class);
void (*GetItemTransform)(ZnItem item, struct _ZnTransfo *t);
} ZnITEM;
/*
**********************************************************************************
*
* Methods defined in Item.c useful for writing items.
*
**********************************************************************************
*/
void ZnItemInit();
ZnItem ZnCreateItem(struct _ZnWInfo *wi, ZnItemClass item_class,
int *argc, Tcl_Obj *CONST *args[]);
void ZnAddItemClass(ZnItemClass class);
ZnItemClass ZnLookupItemClass(char *class_name);
ZnList ZnItemClassList();
int ZnConfigureAttributes(struct _ZnWInfo *wi, ZnItem item, void *record,
ZnAttrConfig *attr_desc, int argc, Tcl_Obj *CONST args[],
int *flags);
int ZnAttributesInfo(Tcl_Interp *interp, void *record,
ZnAttrConfig *attr_desc, int argc, Tcl_Obj *CONST args[]);
int ZnQueryAttribute(Tcl_Interp *interp, void *record, ZnAttrConfig *attr_desc,
Tcl_Obj *attr_name);
void ZnInitTransformStack(struct _ZnWInfo *wi);
void ZnFreeTransformStack(struct _ZnWInfo *wi);
void ZnResetTransformStack(struct _ZnWInfo *wi);
void ZnPushTransform(struct _ZnWInfo *wi, struct _ZnTransfo *transfo,
ZnPoint *pos, ZnBool compose_scale, ZnBool compose_rot);
void ZnPopTransform(struct _ZnWInfo *wi);
void ZnInitClipStack(struct _ZnWInfo *wi);
void ZnFreeClipStack(struct _ZnWInfo *wi);
void ZnResetClipStack(struct _ZnWInfo *wi);
void ZnPushClip(struct _ZnWInfo *wi, ZnTriStrip *tristrip, ZnBool simple,
ZnBool set_gc);
void ZnPopClip(struct _ZnWInfo *wi, ZnBool set_gc);
ZnBool ZnCurrentClip(struct _ZnWInfo *wi, TkRegion *reg, ZnBBox **clip_box,
ZnBool *simple);
void ZnUpdateItemImage(void *client_data);
extern ZnItemClassId ZnArc;
extern ZnItemClassId ZnMap;
extern ZnItemClassId ZnTabular;
extern ZnItemClassId ZnCurve;
extern ZnItemClassId ZnBezier;
extern ZnItemClassId ZnTriangles;
extern ZnItemClassId ZnRectangle;
extern ZnItemClassId ZnReticle;
extern ZnItemClassId ZnTrack;
extern ZnItemClassId ZnWayPoint;
extern ZnItemClassId ZnGroup;
extern ZnItemClassId ZnIcon;
extern ZnItemClassId ZnText;
extern ZnItemClassId ZnWindow;
extern ZnItemClassId ZnViewport;
#endif /* _Item_h */
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