landmarks/locationlandmarks/multidbsearch/src/EPos_PosLmCriteriaHelper.cpp
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     1 /*
       
     2 * Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies). 
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of "Eclipse Public License v1.0"
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - initial contribution.
       
    11 *
       
    12 * Contributors:
       
    13 *
       
    14 * Description: Helper class that validates a search criteria and creates a copy.
       
    15 *
       
    16 *
       
    17 */
       
    18 
       
    19 
       
    20 // INCLUDE FILES
       
    21 #include    <EPos_CPosLmSearchCriteria.h>
       
    22 #include    <EPos_CPosLmAreaCriteria.h>
       
    23 #include    <EPos_CPosLmTextCriteria.h>
       
    24 #include    <EPos_CPosLmCompositeCriteria.h>
       
    25 #include    <EPos_CPosLmCategoryCriteria.h>
       
    26 #include    <EPos_CPosLmNearestCriteria.h>
       
    27 #include    <EPos_CPosLmCatNameCriteria.h>
       
    28 #include    "EPos_PosLmCriteriaHelper.h"
       
    29 
       
    30 // CONSTANTS
       
    31 
       
    32 // ============================ MEMBER FUNCTIONS ===============================
       
    33 
       
    34 // -----------------------------------------------------------------------------
       
    35 // PosLmCriteriaHelper::ValidateAndCopyL
       
    36 //
       
    37 // (other items were commented in a header).
       
    38 // -----------------------------------------------------------------------------
       
    39 //
       
    40 CPosLmSearchCriteria* PosLmCriteriaHelper::ValidateAndCopyL(
       
    41     const CPosLmSearchCriteria& aCriteria,
       
    42     TBool aIsLm,
       
    43     TBool& aUseDistanceSorting,
       
    44     TBool aIsTopCriteria)
       
    45     {
       
    46     CPosLmSearchCriteria* criteria = NULL;
       
    47     aUseDistanceSorting = EFalse;
       
    48 
       
    49     switch (aCriteria.CriteriaType())
       
    50         {
       
    51         case CPosLmSearchCriteria::ECriteriaArea:
       
    52             __ASSERT_ALWAYS(aIsLm, User::Leave(KErrArgument));
       
    53 
       
    54             criteria = ValidateAndCopyLC(
       
    55                 static_cast<const CPosLmAreaCriteria&>(aCriteria));
       
    56             break;
       
    57 
       
    58         case CPosLmSearchCriteria::ECriteriaText:
       
    59             __ASSERT_ALWAYS(aIsLm, User::Leave(KErrArgument));
       
    60 
       
    61             criteria = ValidateAndCopyLC(
       
    62                 static_cast<const CPosLmTextCriteria&>(aCriteria));
       
    63             break;
       
    64 
       
    65         case CPosLmSearchCriteria::ECriteriaComposite:
       
    66             __ASSERT_ALWAYS(aIsLm, User::Leave(KErrNotSupported));
       
    67             __ASSERT_ALWAYS(aIsTopCriteria, User::Leave(KErrArgument));
       
    68 
       
    69             criteria = ValidateAndCopyLC(
       
    70                 static_cast<const CPosLmCompositeCriteria&>(aCriteria),
       
    71                 aIsLm, aUseDistanceSorting);
       
    72             break;
       
    73 
       
    74         case CPosLmSearchCriteria::ECriteriaCategory:
       
    75             __ASSERT_ALWAYS(aIsLm, User::Leave(KErrArgument));
       
    76 
       
    77             criteria = ValidateAndCopyLC(
       
    78                 static_cast<const CPosLmCategoryCriteria&>(aCriteria));
       
    79             break;
       
    80 
       
    81         case CPosLmSearchCriteria::ECriteriaFindNearest:
       
    82             __ASSERT_ALWAYS(aIsLm, User::Leave(KErrArgument));
       
    83 
       
    84             criteria = ValidateAndCopyLC(
       
    85                 static_cast<const CPosLmNearestCriteria&>(aCriteria));
       
    86             aUseDistanceSorting = ETrue;
       
    87             break;
       
    88 
       
    89         case CPosLmSearchCriteria::ECriteriaCategoryByName:
       
    90             __ASSERT_ALWAYS(!aIsLm, User::Leave(KErrArgument));
       
    91 
       
    92             criteria = ValidateAndCopyLC(
       
    93                 static_cast<const CPosLmCatNameCriteria&>(aCriteria));
       
    94             break;
       
    95 
       
    96         case CPosLmSearchCriteria::ECriteriaIdList:
       
    97             User::Leave(KErrArgument);
       
    98 
       
    99         default:
       
   100             User::Leave(KErrNotSupported);
       
   101         }
       
   102 
       
   103     CleanupStack::Pop(criteria);
       
   104     return criteria;
       
   105     }
       
   106 
       
   107 // -----------------------------------------------------------------------------
       
   108 // PosLmCriteriaHelper::ValidateAndCopyLC
       
   109 //
       
   110 // (other items were commented in a header).
       
   111 // -----------------------------------------------------------------------------
       
   112 //
       
   113 CPosLmSearchCriteria* PosLmCriteriaHelper::ValidateAndCopyLC(
       
   114     const CPosLmCompositeCriteria& aCriteria,
       
   115     TBool aIsLm,
       
   116     TBool& aUseDistanceSorting)
       
   117     {
       
   118     __ASSERT_ALWAYS(aCriteria.NumOfArguments() > 0, User::Leave(KErrArgument));
       
   119 
       
   120     CPosLmCompositeCriteria* criteria =
       
   121         CPosLmCompositeCriteria::NewLC(aCriteria.CompositionType());
       
   122 
       
   123     TBool componentUseDistanceSorting;
       
   124     TInt noOfcomponentUseDistanceSorting(0);
       
   125 
       
   126     for (TUint i = 0; i < aCriteria.NumOfArguments(); i++)
       
   127         {
       
   128         CPosLmSearchCriteria* component =
       
   129             ValidateAndCopyL(aCriteria.Argument(i), aIsLm,
       
   130                              componentUseDistanceSorting, EFalse);
       
   131 
       
   132         CleanupStack::PushL(component);
       
   133         User::LeaveIfError(criteria->AddArgument(component));
       
   134         CleanupStack::Pop(component);
       
   135 
       
   136         if (componentUseDistanceSorting)
       
   137             {
       
   138             noOfcomponentUseDistanceSorting++;
       
   139             }
       
   140 
       
   141         }
       
   142 
       
   143     // Composite with none or more than one distance sorting criteria means
       
   144     // no distance sorting.
       
   145     aUseDistanceSorting = (noOfcomponentUseDistanceSorting == 1);
       
   146 
       
   147     return criteria;
       
   148     }
       
   149 
       
   150 // -----------------------------------------------------------------------------
       
   151 // PosLmCriteriaHelper::ValidateAndCopyLC
       
   152 //
       
   153 // (other items were commented in a header).
       
   154 // -----------------------------------------------------------------------------
       
   155 //
       
   156 CPosLmSearchCriteria* PosLmCriteriaHelper::ValidateAndCopyLC(
       
   157     const CPosLmAreaCriteria& aCriteria)
       
   158     {
       
   159     TReal64 southLatitude;
       
   160     TReal64 northLatitude;
       
   161     TReal64 westLongitude;
       
   162     TReal64 eastLongitude;
       
   163     aCriteria.GetSearchArea(southLatitude, northLatitude,
       
   164         westLongitude, eastLongitude);
       
   165 
       
   166     CPosLmAreaCriteria* criteria = CPosLmAreaCriteria::NewLC(
       
   167         southLatitude, northLatitude,
       
   168         westLongitude, eastLongitude);
       
   169 
       
   170     return criteria;
       
   171     }
       
   172 
       
   173 // -----------------------------------------------------------------------------
       
   174 // PosLmCriteriaHelper::ValidateAndCopyLC
       
   175 //
       
   176 // (other items were commented in a header).
       
   177 // -----------------------------------------------------------------------------
       
   178 //
       
   179 CPosLmSearchCriteria* PosLmCriteriaHelper::ValidateAndCopyLC(
       
   180     const CPosLmTextCriteria& aCriteria)
       
   181     {
       
   182     __ASSERT_ALWAYS(aCriteria.Text().Length() > 0, User::Leave(KErrArgument));
       
   183 
       
   184     CPosLmTextCriteria* criteria = CPosLmTextCriteria::NewLC();
       
   185 
       
   186     criteria->SetTextL(aCriteria.Text());
       
   187     criteria->SetAttributesToSearch(aCriteria.AttributesToSearch());
       
   188 
       
   189     RArray<TUint> positionFields;
       
   190     CleanupClosePushL(positionFields);
       
   191     aCriteria.GetPositionFieldsToSearchL(positionFields);
       
   192     criteria->SetPositionFieldsToSearchL(positionFields);
       
   193     CleanupStack::PopAndDestroy(&positionFields);
       
   194 
       
   195     return criteria;
       
   196     }
       
   197 
       
   198 // -----------------------------------------------------------------------------
       
   199 // PosLmCriteriaHelper::ValidateAndCopyLC
       
   200 //
       
   201 // (other items were commented in a header).
       
   202 // -----------------------------------------------------------------------------
       
   203 //
       
   204 CPosLmSearchCriteria* PosLmCriteriaHelper::ValidateAndCopyLC(
       
   205     const CPosLmCategoryCriteria& aCriteria)
       
   206     {
       
   207     __ASSERT_ALWAYS(aCriteria.CategoryItemId() == KPosLmNullItemId,
       
   208         User::Leave(KErrArgument));
       
   209 
       
   210     CPosLmCategoryCriteria* criteria = CPosLmCategoryCriteria::NewLC();
       
   211     if (aCriteria.CategoryName().Length() > 0)
       
   212         {
       
   213         criteria->SetCategoryNameL(aCriteria.CategoryName());
       
   214         }
       
   215     else if (aCriteria.GlobalCategory() != KPosLmNullGlobalCategory)
       
   216         {
       
   217         criteria->SetGlobalCategory(aCriteria.GlobalCategory());
       
   218         }
       
   219 
       
   220     return criteria;
       
   221     }
       
   222 
       
   223 // -----------------------------------------------------------------------------
       
   224 // PosLmCriteriaHelper::ValidateAndCopyLC
       
   225 //
       
   226 // (other items were commented in a header).
       
   227 // -----------------------------------------------------------------------------
       
   228 //
       
   229 CPosLmSearchCriteria* PosLmCriteriaHelper::ValidateAndCopyLC(
       
   230     const CPosLmNearestCriteria& aCriteria)
       
   231     {
       
   232     TCoordinate coordinate;
       
   233     aCriteria.GetCoordinate(coordinate);
       
   234 
       
   235     CPosLmNearestCriteria* criteria = CPosLmNearestCriteria::NewLC(
       
   236         coordinate,
       
   237         aCriteria.UseCoverageRadius());
       
   238     criteria->SetMaxDistance(aCriteria.MaxDistance());
       
   239 
       
   240     return criteria;
       
   241     }
       
   242 
       
   243 // -----------------------------------------------------------------------------
       
   244 // PosLmCriteriaHelper::ValidateAndCopyLC
       
   245 //
       
   246 // (other items were commented in a header).
       
   247 // -----------------------------------------------------------------------------
       
   248 //
       
   249 CPosLmSearchCriteria* PosLmCriteriaHelper::ValidateAndCopyLC(
       
   250     const CPosLmCatNameCriteria& aCriteria)
       
   251     {
       
   252     __ASSERT_ALWAYS(aCriteria.SearchPattern().Length() > 0,
       
   253         User::Leave(KErrArgument));
       
   254 
       
   255     CPosLmCatNameCriteria* criteria = CPosLmCatNameCriteria::NewLC();
       
   256     criteria->SetSearchPatternL(aCriteria.SearchPattern());
       
   257 
       
   258     return criteria;
       
   259     }
       
   260 
       
   261 //  End of File