epoc32/include/mw/epos_cposlmtextcriteria.h
branchSymbian2
changeset 2 2fe1408b6811
parent 1 666f914201fb
child 4 837f303aceeb
--- a/epoc32/include/mw/epos_cposlmtextcriteria.h	Tue Nov 24 13:55:44 2009 +0000
+++ b/epoc32/include/mw/epos_cposlmtextcriteria.h	Tue Mar 16 16:12:26 2010 +0000
@@ -1,1 +1,179 @@
-epos_cposlmtextcriteria.h
+/*
+* Copyright (c) 2005-2006 Nokia Corporation and/or its subsidiary(-ies). 
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "Symbian Foundation License v1.0" to Symbian Foundation members and "Symbian Foundation End User License Agreement v1.0" to non-members
+* which accompanies this distribution, and is available
+* at the URL "http://www.symbianfoundation.org/legal/licencesv10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  CPosLmTextCriteria class
+*
+*/
+
+
+#ifndef CPOSLMTEXTCRITERIA_H
+#define CPOSLMTEXTCRITERIA_H
+
+#include <e32base.h>
+#include <LbsFields.h>
+#include <EPos_CPosLandmark.h>
+#include "EPos_CPosLmSearchCriteria.h"
+
+const TInt KPosLmMaxSearchStringLength = 255;
+
+/**
+*  Criterion for searching for landmarks which contain a certain text.
+*
+*  The search is defined by providing a text to search for and the position
+*  fields and text attributes to search.
+*
+*  If no attributes are specified for the search, all text attributes in the
+*  landmarks are searched. If no position fields are specified, then all
+*  fields are searched.
+*
+*  If this criterion is passed to
+*  @ref CPosLandmarkSearch::StartLandmarkSearchL, only landmarks which contain
+*  the specified text are returned.
+*
+*  Wild-card characters are supported.
+*
+*  This criterion is only valid when searching for landmarks, i.e. if it
+*  is passed to @p CPosLandmarkSearch::StartCategorySearchL, the function
+*  will fail with error code @p KErrArgument.
+*
+*  @lib eposlmsearchlib.lib
+*  @since S60 3.0
+*/
+class CPosLmTextCriteria : public CPosLmSearchCriteria
+    {
+    public:
+
+        /**
+        * Two-phased constructor.
+        * @returns A new instance of this class.
+        */
+        IMPORT_C static CPosLmTextCriteria* NewLC();
+
+        /**
+        * Destructor.
+        */
+        virtual ~CPosLmTextCriteria();
+
+    public:
+
+        /**
+        * Retrieves the text to search for.
+        *
+        * @return The text to search for.
+        */
+        IMPORT_C TPtrC Text() const;
+
+        /**
+        * Sets the search string.
+        *
+        * A non-empty text string must be set, otherwise
+        * @ref CPosLandmarkSearch::StartLandmarkSearchL will leave with error
+        * code @p KErrArgument.
+        *
+        * The search is case insensitive.
+        *
+        * Wild-card characters "?" and "*" are supported in the search string.
+        * "?" matches a single occurrence of any character and "*" matches
+        * zero or more consecutive occurrences of any characters.
+        *
+        * A landmark matches the criterion if specified text is found anywhere
+        * in selected attributes or position fields.
+        *
+        * @param aText The text to search for.
+        *
+        * @leave KErrArgument The search string is longer than @p KPosLmMaxSearchStringLength.
+        */
+        IMPORT_C void SetTextL( const TDesC& aText );
+
+        /**
+        * Retrieves the landmark attributes which should be searched.
+        *
+        * This function returns a bitmap of landmark attributes. The landmark
+        * attributes are defined by @p CPosLandmark::_TAttributes. It is only
+        * possible to search the @p ELandmarkName and @p EDescription
+        * attributes.
+        *
+        * @return A bitmap indicating which landmark attributes should be
+        *   searched.
+        */
+        IMPORT_C CPosLandmark::TAttributes AttributesToSearch() const;
+
+        /**
+        * Sets which landmark attributes to search.
+        *
+        * The client passes a bitmap of the landmark attributes to search. It
+        * is only possible to search the @p ELandmarkName and @p EDescription
+        * attributes.
+        *
+        * @param aAttributes A bitmap indicating which landmark attributes
+        *   should be searched.
+        *
+        * @panic "Landmarks Client"-EPosInvalidLandmarkAttribute
+        *   Unsupported attribute is passed.
+        */
+        IMPORT_C void SetAttributesToSearch(
+            CPosLandmark::TAttributes aAttributes
+        );
+
+        /**
+        * Retrieves a list of the position fields to search.
+        *
+        * @param[out] aFieldArray On return, contains a list of the position fields
+        *   which are used in a search. If no position fields have been set,
+        *   the array is empty. Position fields are identified by values defined
+        *   in @p TPositionFieldId.
+        */
+        IMPORT_C void GetPositionFieldsToSearchL(
+            RArray<TUint>& aFieldArray
+        ) const;
+
+        /**
+        * Sets the position fields to search.
+        *
+        * Any previously set position fields are cleared by this call.
+        *
+        * @param[in] aFieldArray A list of the position fields to search.
+        *   Position fields are identified by values defined in
+        *   @p TPositionFieldId.
+        */
+        IMPORT_C void SetPositionFieldsToSearchL(
+            const RArray<TUint>&  aFieldArray
+        );
+
+        /**
+        * Clears the position fields list used in a search.
+        */
+        IMPORT_C void ClearPositionFieldsToSearch();
+
+    private:
+
+        CPosLmTextCriteria();
+
+        void ConstructL();
+
+        // Prohibit copy constructor
+        CPosLmTextCriteria( const CPosLmTextCriteria& );
+        // Prohibit assigment operator
+        CPosLmTextCriteria& operator= ( const CPosLmTextCriteria& );
+
+    private:
+
+        HBufC*                      iText;
+        RArray<TUint>               iPositionFieldArray;
+        CPosLandmark::TAttributes   iAttributes;
+
+    };
+
+#endif      // CPOSLMTEXTCRITERIA_H
+
+