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/* $XConsortium: ScrollFrameT.c /main/5 1995/07/15 20:55:20 drk $ */
/*
* Motif
*
* Copyright (c) 1987-2012, The Open Group. All rights reserved.
*
* These libraries and programs are free software; you can
* redistribute them and/or modify them under the terms of the GNU
* Lesser General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* These libraries and programs are distributed in the hope that
* they will be useful, but WITHOUT ANY WARRANTY; without even the
* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with these librararies and programs; if not, write
* to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
* Floor, Boston, MA 02110-1301 USA
*/
/*
* HISTORY
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "XmI.h"
#include <Xm/TraitP.h>
#include <Xm/ScrollFrameT.h>
#include <Xm/NavigatorT.h>
#include "MessagesI.h"
#include "ScrollFramTI.h"
#define SWMessage3 _XmMMsgScrollFrameT_0000
#define SWMessage4 _XmMMsgScrollFrameT_0001
/************************************************************************
*
* _XmSFAddNavigator convenience function
* Entering here, sf is an initialized scrollframe, and
* scroll_frame_data is always valid (but the move_cb field can be
* NULL, for pure APP_DEFINED case support).
*
*************************************<->***********************************/
void
_XmSFAddNavigator(
Widget sf,
Widget nav,
Mask dimMask,
XmScrollFrameData scroll_frame_data)
{
XmNavigatorTrait nav_trait ;
XmNavigatorDataRec nav_data ;
if ((nav_trait = (XmNavigatorTrait)
XmeTraitGet((XtPointer) XtClass(nav), XmQTnavigator)) != NULL) {
/* check for NULL move_cb */
if (scroll_frame_data->move_cb)
nav_trait -> changeMoveCB(nav, scroll_frame_data->move_cb,
(XtPointer) scroll_frame_data->scrollable,
True) ;
nav_data.valueMask = NavDimMask ;
nav_data.dimMask = dimMask ;
nav_trait -> setValue(nav, &nav_data, False);
if (scroll_frame_data->num_nav_list ==
scroll_frame_data->num_nav_slots) {
/* Allocate more space */
scroll_frame_data->num_nav_slots += 2;
scroll_frame_data->nav_list =
(WidgetList) XtRealloc((char*)scroll_frame_data->nav_list,
scroll_frame_data->num_nav_slots * sizeof(Widget));
}
scroll_frame_data->nav_list[scroll_frame_data->num_nav_list] = nav;
scroll_frame_data->num_nav_list++;
} else {
XmeWarning(sf, SWMessage3);
}
}
/************************************************************************
*
* _XmSFRemoveNavigator convenience function
*
*************************************<->***********************************/
void
_XmSFRemoveNavigator(
Widget sf,
Widget nav,
XmScrollFrameData scroll_frame_data)
{
Cardinal position, i;
XmNavigatorTrait nav_trait ;
if ((nav_trait = (XmNavigatorTrait)
XmeTraitGet((XtPointer) XtClass(nav), XmQTnavigator)) != NULL) {
/* remove the move callback */
if (scroll_frame_data->move_cb)
nav_trait -> changeMoveCB(nav, scroll_frame_data->move_cb,
(XtPointer) scroll_frame_data->scrollable,
False) ;
} else {
XmeWarning(sf, SWMessage4);
return ;
}
for (position = 0; position<scroll_frame_data->num_nav_list; position++) {
if (scroll_frame_data->nav_list[position] == nav) {
break;
}
}
if (position == scroll_frame_data->num_nav_list) return;
scroll_frame_data->num_nav_list--;
for (i = position; i < scroll_frame_data->num_nav_list; i++) {
scroll_frame_data->nav_list[i] = scroll_frame_data->nav_list[i+1];
}
}
/************************************************************************
*
* _XmSFUpdateNavigatorsValues convenience function
*
*************************************<->***********************************/
void
_XmSFUpdateNavigatorsValue(
Widget sf,
XmNavigatorData nav_data,
Boolean notify)
{
Cardinal i, num_nav_list ;
Widget * nav_list ;
Boolean inited ;
/* there is a possibility that the SW was not inited for
navigation business: APP_DEFINED where no scrollbar have
been added yet */
inited = ((XmScrollFrameTrait)
XmeTraitGet((XtPointer) XtClass(sf), XmQTscrollFrame))
->getInfo(sf, NULL, &nav_list, &num_nav_list);
if (!inited) return ;
/* loop over the associated navigator list and call the change value
method for each navigator */
/* Updating the first navigator only if notify is True is not
enough, since the dimension is pertinent */
for (i=0; i < num_nav_list; i++) {
Widget nav = nav_list[i] ;
XmNavigatorSetValueProc nav_setValue =
((XmNavigatorTrait)
XmeTraitGet((XtPointer) XtClass(nav), XmQTnavigator))->setValue;
nav_setValue(nav, nav_data, notify);
}
}
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