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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.
*/
/*!
* \file handle.h - describing the different behavious of handles, used e.g. to resize objects
* \ingroup ObjectConnects
*/
#ifndef HANDLE_H
#define HANDLE_H
#include "diatypes.h"
#include "geometry.h"
/*!
* \brief Some object resizing depends on the placement of the handle
* \ingroup ObjectConnects
*/
typedef enum {
HANDLE_RESIZE_NW, /*!< north/west or top/left */
HANDLE_RESIZE_N, /*!< north or top */
HANDLE_RESIZE_NE, /*!< north/east or top/right */
HANDLE_RESIZE_W, /*!< west or left */
HANDLE_RESIZE_E, /*!< east or right */
HANDLE_RESIZE_SW, /*!< south/west or bottom/left */
HANDLE_RESIZE_S, /*!< south or bottom */
HANDLE_RESIZE_SE, /*!< south/east or bottom/right */
HANDLE_MOVE_STARTPOINT, /*!< for lines: the beginning */
HANDLE_MOVE_ENDPOINT, /*!< for lines: the ending */
/*! These handles can be used privately by objects: */
HANDLE_CUSTOM1=200,
HANDLE_CUSTOM2,
HANDLE_CUSTOM3,
HANDLE_CUSTOM4,
HANDLE_CUSTOM5,
HANDLE_CUSTOM6,
HANDLE_CUSTOM7,
HANDLE_CUSTOM8,
HANDLE_CUSTOM9
} HandleId;
/*!
* \brief HandleType is used for color coding the different handles
* \ingroup ObjectConnects
*/
typedef enum {
HANDLE_NON_MOVABLE,
HANDLE_MAJOR_CONTROL,
HANDLE_MINOR_CONTROL,
NUM_HANDLE_TYPES /* Must be last */
} HandleType;
/*!
* \brief When an objects move_handle() function is called this is passed in
* \ingroup ObjectConnects
*/
typedef enum {
HANDLE_MOVE_USER,
HANDLE_MOVE_USER_FINAL,
HANDLE_MOVE_CONNECTED,
HANDLE_MOVE_CREATE, /*!< the initial drag during object placement */
HANDLE_MOVE_CREATE_FINAL /*!< finish of initial drag */
} HandleMoveReason;
/*!
* \brief If the handle is connectable or not
* \ingroup ObjectConnects
*/
typedef enum {
HANDLE_NONCONNECTABLE, /*!< not connectable */
HANDLE_CONNECTABLE, /*!< connectable */
HANDLE_CONNECTABLE_NOBREAK /*!< (unused) Don't break connection on object move */
} HandleConnectType;
/*!
* \brief A handle is used to resize objects or to connet to them.
* \ingroup ObjectConnects
*/
struct _Handle {
HandleId id; /*!< gives (mostly) the placement relative to the object */
HandleType type; /*!< color coding */
Point pos; /*! where the handle currently is in diagram coordinates */
HandleConnectType connect_type; /*!< how to connect if at all */
ConnectionPoint *connected_to; /*!< NULL if not connected */
};
#endif /* HANDLE_H */
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