author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Thu, 19 Aug 2010 09:53:43 +0300 | |
branch | RCL_3 |
changeset 28 | 96907930389d |
parent 0 | f979ecb2b13e |
permissions | -rw-r--r-- |
0
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// Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies). |
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// All rights reserved. |
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// This component and the accompanying materials are made available |
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// under the terms of "Eclipse Public License v1.0" |
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// which accompanies this distribution, and is available |
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// at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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// |
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// Initial Contributors: |
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// Nokia Corporation - initial contribution. |
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// |
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// Contributors: |
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// |
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// Description: |
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// |
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|
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#include "agsinstancesorter.h" |
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#include "agmsortcriteria.h" |
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#include "agssortinstance.h" |
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#include "agmsimpleentry.h" |
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#include "agmpanic.h" |
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|
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const TInt KGreater = 1; |
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const TInt KEqual = 0; |
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const TInt KLess = -1; |
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const TInt KAscending = 1; |
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const TInt KDescending = -1; |
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|
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/** |
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Get comparing function pointer based on specified sort attribute |
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@param aSortAttr Sort attribute |
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*/ |
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InstanceCompareFptr TAgsInstanceSortUtil::GetCompareFptr(CalCommon::TCalSortAttribute aSortAttr) |
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{ |
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InstanceCompareFptr ret(NULL); |
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|
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switch(aSortAttr) |
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{ |
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case CalCommon::ESortAttrStartTime: |
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ret = static_cast<InstanceCompareFptr>(CompareStartTime); |
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break; |
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case CalCommon::ESortAttrEndTime: |
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ret = static_cast<InstanceCompareFptr>(CompareEndTime); |
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break; |
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case CalCommon::ESortAttrLastModified: |
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ret = static_cast<InstanceCompareFptr>(CompareLastModifiedTime); |
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break; |
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case CalCommon::ESortAttrPriority: |
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ret = static_cast<InstanceCompareFptr>(ComparePriority); |
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break; |
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case CalCommon::ESortAttrType: |
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break; |
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default: |
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__ASSERT_DEBUG(0, Panic(EAgmErrInstanceSorterArgument)); |
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break; |
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} |
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return ret; |
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} |
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|
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/** |
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Comparing instances with instance start time |
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@param aFirst reference to first instance |
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@param aSecond reference to second instance |
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@return Positive if the start time of first instance is earlier than the second |
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Zero if the start time of first instance is equal to the second |
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Negative if the start time of first instance is later than the second |
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*/ |
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TInt TAgsInstanceSortUtil::CompareStartTime(const TAgnSortInstance& aFirst, const TAgnSortInstance& aSecond) |
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{ |
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return CompareByTime(aFirst.StartTimeLocal(), aSecond.StartTimeLocal()); |
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} |
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|
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/** |
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Comparing instances with instance's end time |
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@param aFirst reference to first instance |
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@param aSecond reference to second instance |
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@return Positive if the end time of first instance is earlier than the second |
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Zero if the end time of first instance is equal to the second |
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Negative if the end time of first instance is later than the second |
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*/ |
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TInt TAgsInstanceSortUtil::CompareEndTime(const TAgnSortInstance& aFirst, const TAgnSortInstance& aSecond) |
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81 |
{ |
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return CompareByTime(aFirst.EndTimeLocal(), aSecond.EndTimeLocal()); |
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83 |
} |
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84 |
|
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85 |
/** |
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86 |
Comparing instances with instance's last modified time |
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87 |
@param aFirst reference to first instance |
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88 |
@param aSecond reference to second instance |
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89 |
@return Positive if the last modified time of first instance is earlier than the second |
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90 |
Zero if the last modified time of first instance is equal to the second |
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91 |
Negative if the last modified time of first instance is later than the second |
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92 |
*/ |
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93 |
TInt TAgsInstanceSortUtil::CompareLastModifiedTime(const TAgnSortInstance& aFirst, const TAgnSortInstance& aSecond) |
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94 |
{ |
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95 |
return CompareByTime(aFirst.SimpleEntry().LastModifiedDateUtc(), aSecond.SimpleEntry().LastModifiedDateUtc()); |
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96 |
} |
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97 |
|
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98 |
/** |
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99 |
Comparing instances with instance's priority |
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100 |
@param aFirst reference to first instance |
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101 |
@param aSecond reference to second instance |
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@return Positive if the priority of first instance is lower than the second |
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Zero if the priority of first instance is equal to the second |
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Negative if the priority of first instance is higher than the second |
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*/ |
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TInt TAgsInstanceSortUtil::ComparePriority(const TAgnSortInstance& aFirst, const TAgnSortInstance& aSecond) |
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107 |
{ |
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return (aFirst.SimpleEntry().Priority() - aSecond.SimpleEntry().Priority()); |
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} |
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110 |
|
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TInt TAgsInstanceSortUtil::CompareByTime(const TTime& aFirst, const TTime& aSecond) |
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112 |
{ |
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TInt ret(KEqual); |
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if(aFirst > aSecond) |
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115 |
{ |
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//aFirst is later than aSecond |
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ret = KGreater; |
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} |
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else if(aFirst < aSecond) |
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120 |
{ |
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//aFirst is earlier than aSecond |
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ret = KLess; |
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} |
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return ret; |
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} |
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126 |
|
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/** |
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Constructor |
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*/ |
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TAgsInstanceSortElement::TAgsInstanceSortElement(CalCommon::TCalSortAttribute aSortAttr, CalCommon::TCalSortDirection aSortDir) |
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131 |
{ |
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iFptr = TAgsInstanceSortUtil::GetCompareFptr(aSortAttr); |
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iSortDir = (aSortDir == CalCommon::EAscendingOrder) ? KAscending : KDescending; |
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} |
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135 |
|
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136 |
/** |
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Comparing function |
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138 |
*/ |
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TInt TAgsInstanceSortElement::Compare(const TAgnSortInstance& aFirst, const TAgnSortInstance& aSecond) const |
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140 |
{ |
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TInt ret(KEqual); |
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if(iFptr) |
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143 |
{ |
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ret = (*iFptr)(aFirst, aSecond) * iSortDir; |
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} |
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return ret; |
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} |
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148 |
|
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149 |
/** |
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150 |
Constructor |
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151 |
*/ |
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TAgsInstanceSortType::TAgsInstanceSortType(CalCommon::TCalSortAttribute aSortAttr, CalCommon::TCalSortDirection aSortDir, const RArray<CCalEntry::TType>& aEntryTypeOrder) |
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: TAgsInstanceSortElement(aSortAttr, aSortDir), iEntryTypeOrder(aEntryTypeOrder) |
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154 |
{ |
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} |
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156 |
|
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157 |
/** |
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Comparing function |
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*/ |
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TInt TAgsInstanceSortType::Compare(const TAgnSortInstance& aFirst, const TAgnSortInstance& aSecond) const |
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161 |
{ |
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TUint firstIndex = iEntryTypeOrder.Find(aFirst.SimpleEntry().Type()); |
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TUint secondIndex = iEntryTypeOrder.Find(aSecond.SimpleEntry().Type()); |
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return (firstIndex - secondIndex) * iSortDir; |
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} |
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166 |
|
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167 |
/** |
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168 |
Constructor |
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*/ |
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TAgnInstanceSortKey::TAgnInstanceSortKey(const RPointerArray<TAgsInstanceSortElement>& aSortElements) |
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: TKeyArrayFix(0,ECmpNormal,0), iSortElements(aSortElements) |
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172 |
{ |
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} |
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174 |
|
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TInt TAgnInstanceSortKey::Compare(TInt aLeft,TInt aRight) const |
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{ |
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const TInt KCount(iSortElements.Count()); |
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TInt ret(0); |
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TInt index(0); |
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|
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TAgnSortInstance* leftInst = static_cast<TAgnSortInstance*>(At(aLeft)); |
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TAgnSortInstance* rightInst = static_cast<TAgnSortInstance*>(At(aRight)); |
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183 |
|
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//Loop through the sort elements and exit whenever a non-qual return occurs |
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while(index < KCount && ret == 0) |
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{ |
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ret = iSortElements[index++]->Compare(*leftInst, *rightInst); |
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} |
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189 |
|
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if (ret == 0) |
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{ |
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ret = leftInst->SimpleEntry().CollectionId() - rightInst->SimpleEntry().CollectionId(); |
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} |
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|
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return ret; |
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} |
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197 |
|
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198 |
|
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CAgsInstanceSorter* CAgsInstanceSorter::NewL(CAgnSortCriteria* aSortCriteria, const RArray<CCalEntry::TType>& aDefaultTypeOrder) |
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{ |
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CAgsInstanceSorter* self = new (ELeave) CAgsInstanceSorter(); |
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CleanupStack::PushL(self); |
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self->ConstructL(aDefaultTypeOrder, aSortCriteria); |
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CleanupStack::Pop(self); |
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return self; |
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} |
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CAgsInstanceSorter::CAgsInstanceSorter() |
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{ |
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} |
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void CAgsInstanceSorter::ConstructL(const RArray<CCalEntry::TType>& aDefaultTypeOrder, CAgnSortCriteria* aSortCriteria) |
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{ |
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if(aSortCriteria) |
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{ |
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const TInt KCount(aSortCriteria->Count()); |
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|
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//constructing sort elements for each sort criterion in aSortCriteria |
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for(TInt index = 0; index < KCount; index++) |
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{ |
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const TAgnSortCriterion& sortCriterion = aSortCriteria->AtL(index); |
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TAgsInstanceSortElement* sortElement(NULL); |
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if(sortCriterion.iSortAttribute == CalCommon::ESortAttrType) |
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{ |
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if(aSortCriteria->EntryTypeOrder().Count() == 0) |
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{ |
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//Using the default sort order for entry type |
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sortElement = new (ELeave) TAgsInstanceSortType(sortCriterion.iSortAttribute, sortCriterion.iSortDirection, aDefaultTypeOrder); |
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} |
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else |
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{ |
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//Using the customerized sort order for entry type |
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sortElement = new (ELeave) TAgsInstanceSortType(sortCriterion.iSortAttribute, sortCriterion.iSortDirection, aSortCriteria->EntryTypeOrder()); |
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} |
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} |
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else |
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{ |
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sortElement = new (ELeave) TAgsInstanceSortElement(sortCriterion.iSortAttribute, sortCriterion.iSortDirection); |
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} |
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|
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CleanupStack::PushL(sortElement); |
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iSortElements.AppendL(sortElement); |
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CleanupStack::Pop(sortElement); |
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} //for |
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} //if(aSortCriteria) |
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|
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//Take ownership of this as the last thing we do so we don't leave prematurely |
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iSortCriteria = aSortCriteria; |
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} |
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|
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CAgsInstanceSorter::~CAgsInstanceSorter() |
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{ |
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const TInt KCount(iSortElements.Count()); |
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for(TInt index = 0; index < KCount; index++) |
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{ |
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delete iSortElements[index]; |
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} |
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iSortElements.Close(); |
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|
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delete iSortCriteria; |
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} |
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|
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void CAgsInstanceSorter::SortL(CArrayFix<TAgnSortInstance>& aInstances) |
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{ |
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//Using CArrayFixBase::Sort to carry out the sorting |
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TAgnInstanceSortKey sortKey(iSortElements); |
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if(KErrNone != aInstances.Sort(sortKey)) |
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{ |
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//CArrayFix<TAny>::Sort return KErrGeneral when sorting operation cause stack overflow. |
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User::Leave(KErrOverflow); |
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} |
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} |
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|
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TInt CAgsInstanceSorter::FindL(CArrayFix<TAgnSortInstance>& aInstances, TAgnSortInstance& aSearchInstance) |
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{ |
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TAgnInstanceSortKey sortKey(iSortElements); |
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TInt index; |
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User::LeaveIfError(aInstances.FindIsq(aSearchInstance, sortKey, index)); |
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|
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return index; |
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} |