/* * @OPENGROUP_COPYRIGHT@ * COPYRIGHT NOTICE * Copyright (c) 1990, 1991, 1992, 1993 Open Software Foundation, Inc. * Copyright (c) 1996, 1997, 1998, 1999, 2000 The Open Group * ALL RIGHTS RESERVED (MOTIF). See the file named COPYRIGHT.MOTIF for * the full copyright text. * * This software is subject to an open license. It may only be * used on, with or for operating systems which are themselves open * source systems. You must contact The Open Group for a license * allowing distribution and sublicensing of this software on, with, * or for operating systems which are not Open Source programs. * * See http://www.opengroup.org/openmotif/license for full * details of the license agreement. Any use, reproduction, or * distribution of the program constitutes recipient's acceptance of * this agreement. * * EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT, THE PROGRAM IS * PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT LIMITATION, ANY * WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, MERCHANTABILITY * OR FITNESS FOR A PARTICULAR PURPOSE * * EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT, NEITHER RECIPIENT * NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY DIRECT, * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OR DISTRIBUTION OF THE PROGRAM OR THE * EXERCISE OF ANY RIGHTS GRANTED HEREUNDER, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGES. */ /* * HISTORY */ #ifdef REV_INFO #ifndef lint static char rcsid[] = "$XConsortium: GetEdgeCode.c /main/7 1995/07/14 11:33:58 drk $" #endif #endif /*********************************************************************** @(#)GetEdgeCode.c 1.3.1.1 Date:1/22/91 Author: TAT History: 05/24/90 SJS add to sccs Calls: Summary: Return either TopEdge, BottomEdge, LeftEdge, or RightEdge to satisfy the definition of xisInform.edge_code (see xislib.h). This field refers to the edge of the rectangular object that caused a pointer Enter or Leave event to occur. INPUTS: object - pointer to object record old_x old_y new_x new_y OUTPUTS: none RETURNS: TopEdge, BottomEdge, LeftEdge, or RightEdge ************************************************************************/ #include "xislib.h" int xisGetEdgeCode(object,old_x,old_y,new_x,new_y) XisObjectRecord *object; int old_x,old_y; int new_x,new_y; { int itmp; if ( (old_x < object->x && new_x >= object->x)|| (old_x >= object->x && new_x < object->x) ) return LeftEdge; else if ( (old_x >= (itmp = object->x + object->width) && new_x < itmp) || (old_x < itmp && new_x >= itmp) ) return RightEdge; else if ( (old_y < object->y && new_y >= object->y) || (old_y >= object->y && new_y < object->y) ) return TopEdge; else if ( (old_y >= (itmp = object->y + object->width) && new_y < itmp) || (old_y < itmp && new_y >= itmp) ) return BottomEdge; else return UndefinedEdge; } /* End xisGetEdgeCode() */