116 lines
3.1 KiB
C++
116 lines
3.1 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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/*
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*+SNOTICE
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*
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* $TOG: Sort.hh /main/6 1998/09/02 18:26:17 mgreess $
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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 between
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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 without
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* Sun's specific written approval. This document 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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#ifndef SORT_HH
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#define SORT_HH
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#include <DtMail/DtMail.hh>
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#include "FindDialog.h"
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#include "MsgScrollingList.hh"
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//
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// What method to use to sort the message list.
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//
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typedef enum sortBy {
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SortTimeDate = 1,
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SortSender,
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SortSubject,
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SortSize,
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SortStatus,
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SortMsgNum
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} SortBy;
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//
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// Used for sorting the mailbox.
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//
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class Sort {
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public:
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//
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// Sorts the array of message handles.
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//
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int sortMessages(MsgScrollingList *display_list,
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DtMail::MailBox *mbox,
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sortBy howToSort);
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private:
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//
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// This is the message record that is sorted (not returned). It
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// is for internal use only and is never passed up to the calling
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// public member functions.
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//
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// The variable 'link' is used to sort the array in place. After
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// msort() (below) is called, the 'link' variable is set to the
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// link-order (1,2,...,N). Un-like qsort(), msort() sorts in place
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// and does not do memcpy(), msort() - updates the 'link' variable.
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//
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struct messageRecord {
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int link; // Needed by msort(). (see source).
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char *primary_key_str;
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int primary_key_int;
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int secondary_key_int;
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MsgStruct *msg_struct;
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};
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//
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// Similar to qsort().
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//
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int _msort(char * base, // Base of array.
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int nel, // Number of elements in array.
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int width, // Size of each element.
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int offset, // Offset to'link'(see source).
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// Compare function.
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int (*compar)(char ** one, char ** two));
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//
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// This is the function that msort() calls to compare two records.
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//
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static int _sortCmp(char **one, char **two);
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};
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#endif // SORT_HH
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