597 lines
15 KiB
C
597 lines
15 KiB
C
/*
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* CDE - Common Desktop Environment
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*
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* Copyright (c) 1993-2012, The Open Group. All rights reserved.
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*
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* These libraries and programs are free software; you can
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* redistribute them and/or modify them under the terms of the GNU
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* Lesser General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* These libraries and programs are distributed in the hope that
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* they will be useful, but WITHOUT ANY WARRANTY; without even the
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* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU Lesser General Public License for more
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* details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with these libraries and programs; if not, write
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* to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
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* Floor, Boston, MA 02110-1301 USA
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*/
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/* $XConsortium: DialogManager.C /main/5 1996/04/21 19:32:05 drk $ */
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/*
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*+SNOTICE
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*
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* $XConsortium: DialogManager.C /main/5 1996/04/21 19:32:05 drk $
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*
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* RESTRICTED CONFIDENTIAL INFORMATION:
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*
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* The information in this document is subject to special
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* restrictions in a confidential disclosure agreement bertween
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* HP, IBM, Sun, USL, SCO and Univel. Do not distribute this
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* document outside HP, IBM, Sun, USL, SCO, or Univel wihtout
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* Sun's specific written approval. This documment and all copies
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* and derivative works thereof must be returned or destroyed at
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* Sun's request.
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*
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* Copyright 1993 Sun Microsystems, Inc. All rights reserved.
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*
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*+ENOTICE
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*/
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///////////////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////////////
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// This example code is from the book:
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//
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// Object-Oriented Programming with C++ and OSF/Motif
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// by
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// Douglas Young
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// Prentice Hall, 1992
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// ISBN 0-13-630252-1
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//
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// Copyright 1991 by Prentice Hall
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// All Rights Reserved
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//
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// Permission to use, copy, modify, and distribute this software for
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// any purpose except publication and without fee is hereby granted, provided
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// that the above copyright notice appear in all copies of the software.
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///////////////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////
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// DialogManager.C: Support cached dialog widgets
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//////////////////////////////////////////////////////////
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#include "DialogManager.h"
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#include "Application.h"
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#include <Xm/MessageB.h>
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#include <assert.h>
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#include <Dt/MsgCatP.h>
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extern nl_catd catd;
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DialogManager::DialogManager ( char *name ): UIComponent ( name )
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{
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// Empty
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}
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Widget DialogManager::getDialog()
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{
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Widget newDialog = NULL;
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// If the permanent widget exists and is not in use,
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// just return it
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if ( _w && !XtIsManaged ( _w ) )
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return _w;
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// Get a widget from the derived class
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newDialog = createDialog ( theApplication->baseWidget() ) ;
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// If this is a temporary dialog, install callbacks to
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// destroy it when the user pops it down.
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if ( _w )
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{
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XtAddCallback ( newDialog,
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XmNokCallback,
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&DialogManager::destroyTmpDialogCallback,
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(XtPointer) this );
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XtAddCallback ( newDialog,
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XmNcancelCallback,
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&DialogManager::destroyTmpDialogCallback,
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(XtPointer) this );
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}
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else // If this is the first dialog to be
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_w = newDialog; // created, save it to be used again.
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return newDialog;
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}
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Widget DialogManager::getDialog(
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Widget w
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)
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{
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Widget newDialog = NULL;
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// If the permanent widget exists and is not in use,
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// just return it
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if ( _w && !XtIsManaged ( _w ) )
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return _w;
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// Get a widget from the derived class
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// Parent the dialog to the widget passed in
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newDialog = createDialog (w);
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// If this is a temporary dialog, install callbacks to
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// destroy it when the user pops it down.
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if ( _w )
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{
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XtAddCallback ( newDialog,
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XmNokCallback,
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&DialogManager::destroyTmpDialogCallback,
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(XtPointer) this );
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XtAddCallback ( newDialog,
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XmNcancelCallback,
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&DialogManager::destroyTmpDialogCallback,
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(XtPointer) this );
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}
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else // If this is the first dialog to be
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_w = newDialog; // created, save it to be used again.
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return newDialog;
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}
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void DialogManager::destroyTmpDialogCallback ( Widget w,
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XtPointer,
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XtPointer clientData)
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{
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XtDestroyWidget ( w );
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// We must set the wiget handle to NULL to prevent multiple
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// destroys.
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((DialogManager *)clientData)->_w = NULL;
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}
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Widget DialogManager::post (char *title,
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char *text,
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Widget wid,
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void *clientData,
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DialogCallback ok,
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DialogCallback cancel,
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DialogCallback help)
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{
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// Get a dialog widget from the cache
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Widget dialog = getDialog(wid);
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// Make sure the dialog exists, and that it is an XmMessageBox
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// or subclass, since the callbacks assume this widget type
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assert ( dialog != NULL );
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// assert ( XtIsSubclass ( dialog, xmMessageBoxWidgetClass ) );
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// Convert the text string to a compound string and
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// specify this to be the message displayed in the dialog.
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XmString titleStr = XmStringCreateLocalized (title);
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XmString xmstr = XmStringCreateLocalized ( text );
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XtVaSetValues ( dialog,
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XmNmessageString, xmstr,
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XmNdialogTitle, titleStr,
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NULL );
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XmStringFree ( xmstr );
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XmStringFree ( titleStr );
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// Create an object to carry the additional data needed
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// to cache the dialogs.
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DialogCallbackData *dcb = new DialogCallbackData( this,
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clientData,
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ok, cancel,
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help );
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// Install callback function for each button
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// support by Motif dialogs. If there is no help callback
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// unmanage the corresponding button instead, if possible.
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if ( ok )
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XtAddCallback ( dialog,
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XmNokCallback,
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&DialogManager::okCallback,
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(XtPointer) dcb );
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else
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{
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Widget w = XmMessageBoxGetChild ( dialog,
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XmDIALOG_OK_BUTTON );
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XtUnmanageChild ( w );
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}
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if ( cancel )
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XtAddCallback ( dialog,
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XmNcancelCallback,
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&DialogManager::cancelCallback,
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(XtPointer) dcb );
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else
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{
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Widget w = XmMessageBoxGetChild ( dialog,
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XmDIALOG_CANCEL_BUTTON );
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XtUnmanageChild ( w );
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}
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if ( help )
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XtAddCallback ( dialog,
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XmNhelpCallback,
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&DialogManager::helpCallback,
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(XtPointer) dcb );
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else
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{
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Widget w = XmMessageBoxGetChild ( dialog,
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XmDIALOG_HELP_BUTTON );
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XtUnmanageChild ( w );
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}
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// Post the dialog.
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XtManageChild ( dialog );
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return dialog;
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}
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Widget DialogManager::post (char *title,
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char *text,
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void *clientData,
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DialogCallback ok,
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DialogCallback cancel,
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DialogCallback help)
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{
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// Get a dialog widget from the cache
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Widget dialog = getDialog();
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// Make sure the dialog exists, and that it is an XmMessageBox
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// or subclass, since the callbacks assume this widget type
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assert ( dialog != NULL );
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// assert ( XtIsSubclass ( dialog, xmMessageBoxWidgetClass ) );
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// Convert the text string to a compound string and
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// specify this to be the message displayed in the dialog.
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XmString titleStr = XmStringCreateLocalized (title);
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XmString xmstr = XmStringCreateLocalized ( text );
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XtVaSetValues ( dialog,
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XmNmessageString, xmstr,
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XmNdialogTitle, titleStr,
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NULL );
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XmStringFree ( xmstr );
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XmStringFree ( titleStr );
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// Create an object to carry the additional data needed
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// to cache the dialogs.
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DialogCallbackData *dcb = new DialogCallbackData( this,
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clientData,
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ok, cancel,
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help );
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// Install callback function for each button
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// support by Motif dialogs. If there is no help callback
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// unmanage the corresponding button instead, if possible.
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if ( ok )
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XtAddCallback ( dialog,
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XmNokCallback,
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&DialogManager::okCallback,
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(XtPointer) dcb );
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else
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{
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Widget w = XmMessageBoxGetChild ( dialog,
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XmDIALOG_OK_BUTTON );
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XtUnmanageChild ( w );
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}
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if ( cancel )
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XtAddCallback ( dialog,
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XmNcancelCallback,
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&DialogManager::cancelCallback,
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(XtPointer) dcb );
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else
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{
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Widget w = XmMessageBoxGetChild ( dialog,
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XmDIALOG_CANCEL_BUTTON );
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XtUnmanageChild ( w );
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}
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if ( help )
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XtAddCallback ( dialog,
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XmNhelpCallback,
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&DialogManager::helpCallback,
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(XtPointer) dcb );
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else
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{
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Widget w = XmMessageBoxGetChild ( dialog,
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XmDIALOG_HELP_BUTTON );
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XtUnmanageChild ( w );
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}
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// Post the dialog.
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XtManageChild ( dialog );
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return dialog;
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}
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void DialogManager::okCallback ( Widget w,
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XtPointer clientData,
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XtPointer )
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{
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DialogCallbackData *dcd = (DialogCallbackData *) clientData;
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DialogManager *obj = (DialogManager *) dcd->dialogManager();
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DialogCallback callback;
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// If caller specified an ok callback, call the function
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if ( ( callback = dcd->ok() ) != NULL )
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( *callback )( dcd->clientData() );
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// Reset for the next time
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obj->cleanup ( w, dcd );
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}
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void DialogManager::cancelCallback ( Widget w,
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XtPointer clientData,
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XtPointer )
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{
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DialogCallbackData *dcd = (DialogCallbackData *) clientData;
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DialogManager *obj = (DialogManager *) dcd->dialogManager();
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DialogCallback callback;
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if ( ( callback = dcd->cancel() ) != NULL )
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( *callback )( dcd->clientData() );
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obj->cleanup ( w, dcd );
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}
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void DialogManager::helpCallback ( Widget w,
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XtPointer clientData,
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XtPointer )
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{
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DialogCallbackData *dcd = (DialogCallbackData *) clientData;
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DialogManager *obj = (DialogManager *) dcd->dialogManager();
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DialogCallback callback;
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if ( ( callback = dcd->help() ) != NULL )
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( *callback )( dcd->clientData() );
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obj->cleanup ( w, dcd );
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}
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void DialogManager::cleanup ( Widget w, DialogCallbackData *dcd )
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{
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// Remove all callbacks to avoid having duplicate
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// callback functions installed.
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XtRemoveCallback ( w,
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XmNokCallback,
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&DialogManager::okCallback,
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(XtPointer) dcd );
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XtRemoveCallback ( w,
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XmNcancelCallback,
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&DialogManager::cancelCallback,
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(XtPointer) dcd );
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XtRemoveCallback ( w,
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XmNhelpCallback,
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&DialogManager::helpCallback,
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(XtPointer) dcd );
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// Delete the DialogCallbackData instance for this posting
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delete dcd;
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}
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void
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DialogManager::forceUpdate( Widget w )
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{
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Widget diashell, topshell;
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Window diawindow, topwindow;
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Display *dpy;
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XWindowAttributes xwa;
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XEvent event;
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if ( !w )
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return;
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XtAppContext cxt=XtWidgetToApplicationContext( w );
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for (diashell=w;
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!XtIsShell(diashell);
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diashell=XtParent(diashell))
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;
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for ( topshell=diashell;
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XtIsTopLevelShell( topshell );
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topshell = XtParent( topshell ) )
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;
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// if (XtIsRealized(diashell) && XtIsRealized(topshell)){
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dpy=XtDisplay(diashell);
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diawindow=XtWindow(diashell);
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topwindow=XtWindow(topshell);
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while ( XGetWindowAttributes(dpy,diawindow,&xwa) &&
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xwa.map_state != IsViewable && XEventsQueued(dpy,QueuedAlready)){
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// if ( XGetWindowAttributes( dpy, topwindow, &xwa ) &&
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// xwa.map_state != IsViewable )
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// break;
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XtAppNextEvent( cxt, &event );
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XtDispatchEvent( &event );
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}
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// }
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XmUpdateDisplay(topshell);
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}
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// Added this extra functionality
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void
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my_okCallback( int *data )
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{
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*data=1;
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}
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void
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my_cancelCallback( int *data )
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{
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*data=2;
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}
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int
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DialogManager::post_and_return(
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char *title_str,
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char *text_str,
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Widget wid
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)
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{
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int answer = 0;
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XmString okLabel, cancelLabel;
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// They may have been set via the overloaded post_and_return()
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// method before. Reset them to their default values...
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okLabel = XmStringCreateLocalized(CATGETS(catd, 1, 2, "OK"));
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cancelLabel = XmStringCreateLocalized(CATGETS(catd, 1, 3, "Cancel"));
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Widget dlg = this->getDialog(wid);
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// Make sure the dialog exists, and that it is an XmMessageBox
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// or subclass, since the callbacks assume this widget type
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assert ( dlg != NULL );
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XtVaSetValues(dlg,
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XmNokLabelString, okLabel,
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XmNcancelLabelString, cancelLabel,
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NULL);
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Widget dialog =
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this->post(title_str,
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text_str,
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wid,
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(void *) &answer,
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( DialogCallback ) &my_okCallback,
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( DialogCallback ) &my_cancelCallback);
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forceUpdate( dialog );
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while ( answer==0 )
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XtAppProcessEvent(XtWidgetToApplicationContext(dialog), XtIMAll );
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// Process just one more event to pop down dialog.
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XtAppProcessEvent(XtWidgetToApplicationContext(dialog), XtIMAll );
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return(answer);
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}
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int
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DialogManager::post_and_return(
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char *title_str,
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char *text_str,
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char *okLabelString,
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Widget wid
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)
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{
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int answer = 0;
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XmString okLabel;
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okLabel = XmStringCreateLocalized(okLabelString);
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Widget dlg = this->getDialog(wid);
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// Make sure the dialog exists, and that it is an XmMessageBox
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// or subclass, since the callbacks assume this widget type
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assert ( dlg != NULL );
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XtVaSetValues(dlg,
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XmNokLabelString, okLabel,
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NULL);
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Widget dialog = this->post(title_str,
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text_str,
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wid,
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(void *) &answer,
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( DialogCallback ) &my_okCallback);
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forceUpdate( dialog );
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while ( answer==0 )
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XtAppProcessEvent(XtWidgetToApplicationContext(dialog), XtIMAll );
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// Process just one more event to pop down dialog.
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XtAppProcessEvent(XtWidgetToApplicationContext(dialog), XtIMAll );
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return(answer);
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}
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int
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DialogManager::post_and_return(
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char *title_str,
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char *text_str,
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char *okLabelString,
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char *cancelLabelString,
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Widget wid
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)
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{
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int answer = 0;
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XmString okLabel, cancelLabel;
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okLabel = XmStringCreateLocalized(okLabelString);
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cancelLabel = XmStringCreateLocalized(cancelLabelString);
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Widget dlg = this->getDialog(wid);
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// Make sure the dialog exists, and that it is an XmMessageBox
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// or subclass, since the callbacks assume this widget type
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assert ( dlg != NULL );
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XtVaSetValues(dlg,
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XmNokLabelString, okLabel,
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XmNcancelLabelString, cancelLabel,
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NULL);
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Widget dialog = this->post(title_str,
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text_str,
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wid,
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(void *) &answer,
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( DialogCallback ) &my_okCallback,
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( DialogCallback ) &my_cancelCallback);
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forceUpdate( dialog );
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while ( answer==0 )
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XtAppProcessEvent(XtWidgetToApplicationContext(dialog), XtIMAll );
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// Process just one more event to pop down dialog.
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XtAppProcessEvent(XtWidgetToApplicationContext(dialog), XtIMAll );
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return(answer);
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}
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