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/* Dia -- an diagram creation/manipulation program
* Copyright (C) 1998 Alexander Larsson
*
* 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 ELEMENT_H
#define ELEMENT_H
#include "diatypes.h"
#include "object.h"
#include "handle.h"
#include "connectionpoint.h"
#include "boundingbox.h"
/* This is a subclass of DiaObject used to help implementing objects
* of a type with 8 handles around ..... more info here. */
struct _Element {
/* DiaObject must be first because this is a 'subclass' of it. */
DiaObject object;
Handle resize_handles[8];
Point corner;
real width;
real height;
ElementBBExtras extra_spacing;
};
void element_update_handles(Element *elem);
void element_update_boundingbox(Element *elem);
void element_init(Element *elem, int num_handles, int num_connections);
void element_destroy(Element *elem);
void element_copy(Element *from, Element *to);
ObjectChange* element_move_handle(Element *elem, HandleId id,
Point *to, ConnectionPoint *cp,
HandleMoveReason reason,
ModifierKeys modifiers);
void element_move_handle_aspect(Element *elem, HandleId id,
Point *to, real aspect_ratio);
void element_save(Element *elem, ObjectNode obj_node);
void element_load(Element *elem, ObjectNode obj_node);
/* base property stuff ... */
#define ELEMENT_COMMON_PROPERTIES \
OBJECT_COMMON_PROPERTIES, \
{ "elem_corner", PROP_TYPE_POINT, 0, \
"Element corner", "The corner of the element"}, \
{ "elem_width", PROP_TYPE_REAL, 0, \
"Element width", "The width of the element"}, \
{ "elem_height", PROP_TYPE_REAL, 0, \
"Element height", "The height of the element"}
#define ELEMENT_COMMON_PROPERTIES_OFFSETS \
OBJECT_COMMON_PROPERTIES_OFFSETS, \
{ "elem_corner", PROP_TYPE_POINT, offsetof(Element, corner) }, \
{ "elem_width", PROP_TYPE_REAL, offsetof(Element, width) }, \
{ "elem_height", PROP_TYPE_REAL, offsetof(Element, height) }
#endif /* ELEMENT_H */
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