Logo Search packages:      
Sourcecode: nedit version File versions  Download package

GridUtil.c

/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 *
 * ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is the Microline Widget Library, originally made available under the NPL by Neuron Data <http://www.neurondata.com>.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * In addition, as a special exception to the GNU GPL, the copyright holders
 * give permission to link the code of this program with the Motif and Open
 * Motif libraries (or with modified versions of these that use the same
 * license), and distribute linked combinations including the two. You
 * must obey the GNU General Public License in all respects for all of
 * the code used other than linking with Motif/Open Motif. If you modify
 * this file, you may extend this exception to your version of the file,
 * but you are not obligated to do so. If you do not wish to do so,
 * delete this exception statement from your version.
 *
 * ***** END LICENSE BLOCK ***** */

/*----------------------------------------------------------------------*/
/*                                                                                                          */
/* Name:          <XmL/GridUtil.c>                                                        */
/*                                                                                                          */
/* Description:   XmLGrid misc utilities.  They are here in order not to      */
/*                continue bloating Grid.c beyond hope.                             */
/*                                                                                                          */
/* Author:        Ramiro Estrugo <ramiro@netscape.com>                              */
/*                                                                                                          */
/* Created:       Thu May 28 21:55:45 PDT 1998                                      */
/*                                                                                                          */
/*----------------------------------------------------------------------*/

#include "GridP.h"

#include <assert.h>

/*----------------------------------------------------------------------*/
/* extern */ int 
XmLGridGetRowCount(Widget w)
{
      XmLGridWidget g = (XmLGridWidget) w;

      assert( g != NULL );

#ifdef DEBUG_ramiro
      {
            int rows = 0;
            
            XtVaGetValues(w,XmNrows,&rows,NULL);

            assert( rows == g->grid.rowCount );
      }
#endif      

      return g->grid.rowCount;
}
/*----------------------------------------------------------------------*/
/* extern */ int 
XmLGridGetColumnCount(Widget w)
{
      XmLGridWidget g = (XmLGridWidget) w;

      assert( g != NULL );

#ifdef DEBUG_ramiro
      {
            int columns = 0;
            
            XtVaGetValues(w,XmNcolumns,&columns,NULL);

            assert( columns == g->grid.colCount );
      }
#endif      

      return g->grid.colCount;
}
/*----------------------------------------------------------------------*/
/* extern */ void 
XmLGridXYToCellTracking(Widget                  widget, 
                                    int                     x, /* input only args. */
                                    int                     y, /* input only args. */
                                    Boolean *         m_inGrid, /* input/output args. */
                                    int *             m_lastRow, /* input/output args. */
                                    int *             m_lastCol, /* input/output args. */
                                    unsigned char *   m_lastRowtype, /* input/output args. */
                                    unsigned char *   m_lastColtype,/* input/output args. */
                                    int *             outRow, /* output only args. */
                                    int *             outCol, /* output only args. */
                                    Boolean *         enter, /* output only args. */
                                    Boolean *         leave) /* output only args. */
{
      int                     m_totalLines = 0;
      int                     m_numcolumns = 0;
      int                     row = 0;
      int                     column = 0;
      unsigned char     rowtype = XmCONTENT;
      unsigned char     coltype = XmCONTENT;
      
      if (0 > XmLGridXYToRowColumn(widget,
                                                 x,
                                                 y,
                                                 &rowtype,
                                                 &row,
                                                 &coltype,
                                                 &column)) 
      {
            /* In grid; but, not in any cells
             */
            /* treat it as a leave
             */
            *enter = FALSE;
            *leave = TRUE;          
            return;
      }/* if */
      
      m_totalLines = XmLGridGetRowCount(widget);
      m_numcolumns = XmLGridGetColumnCount(widget);

      if ((row < m_totalLines) &&
            (column < m_numcolumns) &&
            ((*m_lastRow != row)||
             (*m_lastCol != column) ||
             (*m_lastRowtype != rowtype)||
             (*m_lastColtype != coltype))) 
      {
            *outRow = (rowtype == XmHEADING)?-1:row;
            *outCol = column;
            
            if (*m_inGrid == False) 
            {
                  *m_inGrid = True;
                  
                  /* enter a cell
                   */
                  *enter = TRUE;
                  *leave = FALSE;
                  
            }/* if */
            else 
            {
                  /* Cruising among cells
                   */
                  *enter = TRUE;
                  *leave = TRUE;
            }/* else */
            *m_lastRow = row;
            *m_lastCol = column;
            *m_lastRowtype = rowtype ;
            *m_lastColtype  = coltype ;
      }/* row /col in grid */                   
}
/*----------------------------------------------------------------------*/

Generated by  Doxygen 1.6.0   Back to index