doc/src/snippets/code/doc_src_q3asciidict.qdoc
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     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
       
     4 ** All rights reserved.
       
     5 ** Contact: Nokia Corporation (qt-info@nokia.com)
       
     6 **
       
     7 ** This file is part of the documentation of the Qt Toolkit.
       
     8 **
       
     9 ** $QT_BEGIN_LICENSE:LGPL$
       
    10 ** No Commercial Usage
       
    11 ** This file contains pre-release code and may not be distributed.
       
    12 ** You may use this file in accordance with the terms and conditions
       
    13 ** contained in the Technology Preview License Agreement accompanying
       
    14 ** this package.
       
    15 **
       
    16 ** GNU Lesser General Public License Usage
       
    17 ** Alternatively, this file may be used under the terms of the GNU Lesser
       
    18 ** General Public License version 2.1 as published by the Free Software
       
    19 ** Foundation and appearing in the file LICENSE.LGPL included in the
       
    20 ** packaging of this file.  Please review the following information to
       
    21 ** ensure the GNU Lesser General Public License version 2.1 requirements
       
    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
       
    23 **
       
    24 ** In addition, as a special exception, Nokia gives you certain additional
       
    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception
       
    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
       
    27 **
       
    28 ** If you have questions regarding the use of this file, please contact
       
    29 ** Nokia at qt-info@nokia.com.
       
    30 **
       
    31 **
       
    32 **
       
    33 **
       
    34 **
       
    35 **
       
    36 **
       
    37 **
       
    38 ** $QT_END_LICENSE$
       
    39 **
       
    40 ****************************************************************************/
       
    41 
       
    42 //! [0]
       
    43 Q3AsciiDict<QLineEdit> fields; // char* keys, QLineEdit* values
       
    44 fields.insert( "forename", new QLineEdit( this ) );
       
    45 fields.insert( "surname", new QLineEdit( this ) );
       
    46 
       
    47 fields["forename"]->setText( "Homer" );
       
    48 fields["surname"]->setText( "Simpson" );
       
    49 
       
    50 Q3AsciiDictIterator<QLineEdit> it( fields ); // See Q3AsciiDictIterator
       
    51 for( ; it.current(); ++it )
       
    52     cout << it.currentKey() << ": " << it.current()->text() << endl;
       
    53 cout << endl;
       
    54 
       
    55 if ( fields["forename"] && fields["surname"] )
       
    56     cout << fields["forename"]->text() << " " 
       
    57 	<< fields["surname"]->text() << endl;  // Prints "Homer Simpson"
       
    58 
       
    59 fields.remove( "forename" ); // Does not delete the line edit
       
    60 if ( ! fields["forename"] )
       
    61     cout << "forename is not in the dictionary" << endl;
       
    62 //! [0]
       
    63 
       
    64 
       
    65 //! [1]
       
    66 Q3AsciiDict<char> dict;
       
    67     ...
       
    68 if ( dict.find(key) )
       
    69     dict.remove( key );
       
    70 dict.insert( key, item );
       
    71 //! [1]
       
    72 
       
    73 
       
    74 //! [2]
       
    75 Q3AsciiDict<QLineEdit> fields;
       
    76 fields.insert( "forename", new QLineEdit( this ) );
       
    77 fields.insert( "surname", new QLineEdit( this ) );
       
    78 fields.insert( "age", new QLineEdit( this ) );
       
    79 
       
    80 fields["forename"]->setText( "Homer" );
       
    81 fields["surname"]->setText( "Simpson" );
       
    82 fields["age"]->setText( "45" );
       
    83 
       
    84 Q3AsciiDictIterator<QLineEdit> it( fields );
       
    85 for( ; it.current(); ++it )
       
    86     cout << it.currentKey() << ": " << it.current()->text() << endl;
       
    87 cout << endl;
       
    88 
       
    89 // Output (random order):
       
    90 //	age: 45
       
    91 //	surname: Simpson
       
    92 //	forename: Homer
       
    93 //! [2]