From 41fa1c196965f17f9748f835d90c307b7e594883 Mon Sep 17 00:00:00 2001
From: zecke <zecke>
Date: Thu, 18 Nov 2004 21:46:17 +0000
Subject: Add generic sorting implementation based on QVector

for Contact and Todo
---
(limited to 'libopie2/opiepim/private/opimtodosortvector.cpp')

diff --git a/libopie2/opiepim/private/opimtodosortvector.cpp b/libopie2/opiepim/private/opimtodosortvector.cpp
new file mode 100644
index 0000000..8d15710
--- a/dev/null
+++ b/libopie2/opiepim/private/opimtodosortvector.cpp
@@ -0,0 +1,163 @@
+/*
+                             This file is part of the Opie Project
+                             Copyright (C) 2004 Holger Freyther <freyther@handhelds.org>
+              =.             Copyright (C) The Opie Team <opie-devel@handhelds.org>
+            .=l.
+           .>+-=
+ _;:,     .>    :=|.         This program is free software; you can
+.> <`_,   >  .   <=          redistribute it and/or  modify it under
+:`=1 )Y*s>-.--   :           the terms of the GNU Library General Public
+.="- .-=="i,     .._         License as published by the Free Software
+ - .   .-<_>     .<>         Foundation; either version 2 of the License,
+     ._= =}       :          or (at your option) any later version.
+    .%`+i>       _;_.
+    .i_,=:_.      -<s.       This program is distributed in the hope that
+     +  .  -:.       =       it will be useful,  but WITHOUT ANY WARRANTY;
+    : ..    .:,     . . .    without even the implied warranty of
+    =_        +     =;=|`    MERCHANTABILITY or FITNESS FOR A
+  _.=:.       :    :=>`:     PARTICULAR PURPOSE. See the GNU
+..}^=.=       =       ;      Library General Public License for more
+++=   -.     .`     .:       details.
+ :     =  ...= . :.=-
+ -.   .:....=;==+<;          You should have received a copy of the GNU
+  -_. . .   )=.  =           Library General Public License along with
+    --        :-=`           this library; see the file COPYING.LIB.
+                             If not, write to the Free Software Foundation,
+                             Inc., 59 Temple Place - Suite 330,
+                             Boston, MA 02111-1307, USA.
+*/
+
+#include "opimtodosortvector.h"
+#include <opie2/otodoaccess.h>
+
+namespace Opie {
+namespace Internal {
+
+inline QString string( const OPimTodo& todo) {
+    return  todo.summary().isEmpty() ?
+        todo.description().left(20 ) :
+        todo.summary();
+}
+
+inline int completed( const OPimTodo& todo1, const OPimTodo& todo2) {
+    int ret = 0;
+    if ( todo1.isCompleted() ) ret++;
+    if ( todo2.isCompleted() ) ret--;
+    return ret;
+}
+
+inline int priority( const OPimTodo& t1, const OPimTodo& t2) {
+    return ( t1.priority() - t2.priority() );
+}
+
+inline int summary( const OPimTodo& t1, const OPimTodo& t2) {
+    return QString::compare( string(t1), string(t2) );
+}
+
+inline int deadline( const OPimTodo& t1, const OPimTodo& t2) {
+    int ret = 0;
+    if ( t1.hasDueDate() &&
+         t2.hasDueDate() )
+        ret = t2.dueDate().daysTo( t1.dueDate() );
+    else if ( t1.hasDueDate() )
+        ret = -1;
+    else if ( t2.hasDueDate() )
+        ret = 1;
+    else
+        ret = 0;
+
+    return ret;
+}
+
+
+OPimTodoSortVector::OPimTodoSortVector( uint size, bool asc, int sort )
+    : OPimSortVector<OPimTodo>( size, asc, sort )
+{}
+
+int OPimTodoSortVector::compareItems( const OPimTodo& con1, const OPimTodo& con2 ) {
+    bool seComp, sePrio, seSum, seDeadline;
+    seComp = sePrio = seDeadline = seSum = false;
+    int ret =0;
+    bool asc = sortAscending();
+
+    /* same item */
+    if ( con1.uid() == con2.uid() )
+        return 0;
+
+    switch ( sortOrder() ) {
+    case OPimTodoAccess::Completed: {
+        ret = completed( con1, con2 );
+        seComp = TRUE;
+        break;
+    }
+    case OPimTodoAccess::Priority: {
+        ret = priority( con1, con2 );
+        sePrio = TRUE;
+        break;
+    }
+    case OPimTodoAccess::SortSummary: {
+        ret  = summary( con1, con2 );
+        seSum = TRUE;
+        break;
+    }
+    case OPimTodoAccess::SortByDate:
+    case OPimTodoAccess::Deadline: {
+        ret = deadline( con1, con2 );
+        seDeadline = TRUE;
+        break;
+    }
+    default:
+        ret = 0;
+        break;
+    };
+    /*
+     * FIXME do better sorting if the first sort criteria
+     * ret equals 0 start with complete and so on...
+     */
+
+    /* twist it we're not ascending*/
+    if (!asc)
+        ret = ret * -1;
+
+    if ( ret )
+        return ret;
+
+    // default did not gave difference let's try it other way around
+    /*
+     * General try if already checked if not test
+     * and return
+     * 1.Completed
+     * 2.Priority
+     * 3.Description
+     * 4.DueDate
+     */
+    if (!seComp ) {
+        if ( (ret = completed( con1, con2 ) ) ) {
+            if (!asc ) ret *= -1;
+            return ret;
+        }
+    }
+    if (!sePrio ) {
+        if ( (ret = priority( con1, con2 ) ) ) {
+            if (!asc ) ret *= -1;
+            return ret;
+        }
+    }
+    if (!seSum ) {
+        if ( (ret = summary(con1, con2 ) ) ) {
+            if (!asc) ret *= -1;
+            return ret;
+        }
+    }
+    if (!seDeadline) {
+        if ( (ret = deadline( con1, con2 ) ) ) {
+            if (!asc) ret *= -1;
+            return ret;
+        }
+    }
+
+    return 0;
+}
+
+}
+}
--
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