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/*
* Field.h -- Header for field item parts.
*
* Authors : Patrick Lecoanet.
* Creation date :
*
* $Id$
*/
/*
* Copyright (c) 2002 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 _Field_h
#define _Field_h
#include "Attrs.h"
#include "Types.h"
#include "List.h"
#include "Color.h"
#include "Image.h"
struct _ZnItemStruct;
struct _ZnAttrConfig;
/*
* Field array management record.
*
* This structure should be used only for internal
* management by items with fields. The rest of the code
* should use the methods in FIELD.
*
*/
typedef struct _ZnFieldSetStruct {
struct _ZnItemStruct *item;
ZnLabelFormat label_format;
unsigned int num_fields;
struct _FieldStruct *fields;
ZnDim label_width; /* Describe the label size. Access these */
ZnDim label_height; /* 2 only with GetLabelBBox. -1 means
* not up to date. */
ZnPoint label_pos; /* Describe the label origin. */
} ZnFieldSetStruct, *ZnFieldSet;
extern struct _ZnFIELD {
struct _ZnAttrConfig *attr_desc;
void (*InitFields)(ZnFieldSet fs);
void (*CloneFields)(ZnFieldSet fs);
void (*FreeFields)(ZnFieldSet fs);
int (*ConfigureField)(ZnFieldSet fs, int field, int argc, Tcl_Obj *CONST argv[], int *flags);
int (*QueryField)(ZnFieldSet fs, int field, int argc, Tcl_Obj *CONST argv[]);
void (*DrawFields)(ZnFieldSet fs);
void (*RenderFields)(ZnFieldSet fs);
int (*FieldsToArea)(ZnFieldSet fs, ZnBBox *area);
ZnBool (*IsFieldSensitive)(ZnFieldSet fs, int part);
double (*FieldsPick)(ZnFieldSet fs, ZnPoint *p, int *part);
int (*FieldIndex)(ZnFieldSet fs, int field, Tcl_Obj *index_spec, int *index);
ZnBool (*FieldInsertChars)(ZnFieldSet fs, int field, int *index, char *chars);
ZnBool (*FieldDeleteChars)(ZnFieldSet fs, int field,
int *first, int *last);
void (*FieldCursor)(ZnFieldSet fs, int field, int index);
int (*FieldSelection)(ZnFieldSet fs, int field, int offset,
char *chars, int max_chars);
void (*LeaderToLabel)(ZnFieldSet fs, ZnPoint *start, ZnPoint *end);
void (*GetLabelBBox)(ZnFieldSet fs, ZnDim *w, ZnDim *h);
void (*GetFieldBBox)(ZnFieldSet fs, unsigned int index,
ZnBBox *field_bbox);
void (*SetFieldsAutoAlign)(ZnFieldSet fs, int alignment);
void (*ClearFieldCache)(ZnFieldSet fs, int field);
char *(*GetFieldStruct)(ZnFieldSet fs, int field);
unsigned int (*NumFields)(ZnFieldSet fs);
} ZnFIELD;
#endif /* _Field_h */
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