116 lines
3.8 KiB
C
116 lines
3.8 KiB
C
/*
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* This is a plug-in for PIKA.
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*
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* Generates images containing vector type drawings.
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*
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* Copyright (C) 1997 Andy Thomas alt@picnic.demon.co.uk
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef __GFIG_DOBJECT_H__
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#define __GFIG_DOBJECT_H__
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#include "gfig-types.h"
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#include "gfig-style.h"
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typedef void (*DobjDrawFunc) (GfigObject *, cairo_t *);
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typedef void (*DobjFunc) (GfigObject *);
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typedef GfigObject *(*DobjGenFunc) (GfigObject *);
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typedef struct DobjPoints
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{
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struct DobjPoints *next;
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GdkPoint pnt;
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gboolean found_me;
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} DobjPoints;
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typedef struct
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{
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DobjType type; /* the object type for this class */
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const gchar *name;
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/* virtuals */
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DobjDrawFunc drawfunc; /* How do I draw myself */
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DobjFunc paintfunc; /* Draw me on canvas */
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DobjGenFunc copyfunc; /* copy */
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void (*update) (GdkPoint *pnt);
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} GfigObjectClass;
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extern GfigObjectClass dobj_class[10];
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/* The object itself */
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struct _GfigObject
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{
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DobjType type; /* What is the type? */
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GfigObjectClass *class; /* What class does it belong to? */
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gint type_data; /* Extra data needed by the object */
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DobjPoints *points; /* List of points */
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Style style; /* this object's individual style settings */
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gint style_no; /* style index of this specific object */
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};
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/* States of the object */
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#define GFIG_OK 0x0
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#define GFIG_MODIFIED 0x1
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#define GFIG_READONLY 0x2
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extern GfigObject *obj_creating;
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extern GfigObject *tmp_line;
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DobjPoints *new_dobjpoint (gint x,
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gint y);
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void do_save_obj (GfigObject *obj,
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GString *to);
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DobjPoints *d_copy_dobjpoints (DobjPoints *pnts);
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void free_one_obj (GfigObject *obj);
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void d_delete_dobjpoints (DobjPoints *pnts);
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void object_update (GdkPoint *pnt);
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GList *copy_all_objs (GList *objs);
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void draw_objects (GList *objs,
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gboolean show_single,
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cairo_t *cr);
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GfigObject *d_load_object (gchar *desc,
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FILE *fp);
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GfigObject *d_new_object (DobjType type,
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gint x,
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gint y);
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void d_save_object (GfigObject *obj,
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GString *string);
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void free_all_objs (GList *objs);
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void clear_undo (PikaGfig *gfig);
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void new_obj_2edit (PikaGfig *gfig,
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GFigObj *obj);
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void gfig_init_object_classes (void);
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void d_pnt_add_line (GfigObject *obj,
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gint x,
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gint y,
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gint pos);
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#endif /* __GFIG_DOBJECT_H__ */
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