source: trunk/doc/html/sql-overview-table4-main-cpp.html

Last change on this file was 190, checked in by rudi, 14 years ago

reference documentation added
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1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
2<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/doc/sql.doc:54 -->
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6<title>sql/overview/table4/main.cpp Example File</title>
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20<font color="#004faf">Home</font></a>
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32<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>sql/overview/table4/main.cpp Example File</h1>
33
34
35<pre>/****************************************************************************
36** $Id: sql-overview-table4-main-cpp.html 2051 2007-02-21 10:04:20Z chehrlic $
37**
38** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
39**
40** This file is part of an example program for Qt. This example
41** program may be used, distributed and modified without limitation.
42**
43*****************************************************************************/
44
45#include "main.h"
46
47
48<a name="f12"></a>StatusPicker::StatusPicker( <a href="qwidget.html">QWidget</a> *parent, const char *name )
49 : <a href="qcombobox.html">QComboBox</a>( parent, name )
50{
51 <a href="qsqlcursor.html">QSqlCursor</a> cur( "status" );
52 cur.<a href="qsqlcursor.html#select">select</a>( cur.<a href="qsqlcursor.html#index">index</a>( "name" ) );
53
54 int i = 0;
55 while ( cur.<a href="qsqlquery.html#next">next</a>() ) {
56 <a href="qcombobox.html#insertItem">insertItem</a>( cur.<a href="qsqlquery.html#value">value</a>( "name" ).toString(), i );
57 index2id[i] = cur.<a href="qsqlquery.html#value">value</a>( "id" ).toInt();
58 i++;
59 }
60}
61
62
63int <a name="f13"></a>StatusPicker::statusId() const
64{
65 return index2id[ currentItem() ];
66}
67
68
69void <a name="f14"></a>StatusPicker::setStatusId( int statusid )
70{
71 QMap&lt;int,int&gt;::Iterator it;
72 for ( it = index2id.begin(); it != index2id.end(); ++it ) {
73 if ( it.data() == statusid ) {
74 setCurrentItem( it.key() );
75 break;
76 }
77 }
78}
79
80
81void CustomTable::<a href="qdatatable.html#paintField">paintField</a>( <a href="qpainter.html">QPainter</a> * p, const <a href="qsqlfield.html">QSqlField</a>* field,
82 const <a href="qrect.html">QRect</a> &amp; cr, bool b)
83{
84 if ( !field )
85 return;
86 if ( field-&gt;<a href="qsqlfield.html#name">name</a>() == "statusid" ) {
87 <a href="qsqlquery.html">QSqlQuery</a> query( "SELECT name FROM status WHERE id=" +
88 field-&gt;<a href="qsqlfield.html#value">value</a>().toString() );
89 <a href="qstring.html">QString</a> text;
90 if ( query.<a href="qsqlquery.html#next">next</a>() ) {
91 text = query.<a href="qsqlquery.html#value">value</a>( 0 ).toString();
92 }
93 p-&gt;<a href="qpainter.html#drawText">drawText</a>( 2,2, cr.<a href="qrect.html#width">width</a>()-4, cr.<a href="qrect.html#height">height</a>()-4, fieldAlignment( field ), text );
94 }
95 else {
96 QDataTable::<a href="qdatatable.html#paintField">paintField</a>( p, field, cr, b) ;
97 }
98}
99
100
101QWidget *CustomSqlEditorFactory::<a href="qsqleditorfactory.html#createEditor">createEditor</a>(
102 <a href="qwidget.html">QWidget</a> *parent, const <a href="qsqlfield.html">QSqlField</a> *field )
103{
104 if ( field-&gt;<a href="qsqlfield.html#name">name</a>() == "statusid" ) {
105 <a href="qwidget.html">QWidget</a> *editor = new StatusPicker( parent );
106 return editor;
107 }
108
109 return QSqlEditorFactory::createEditor( parent, field );
110}
111
112
113int main( int argc, char *argv[] )
114{
115 <a href="qapplication.html">QApplication</a> app( argc, argv );
116
117 if ( createConnections() ) {
118 <a href="qsqlcursor.html">QSqlCursor</a> staffCursor( "staff" );
119
120 CustomTable *staffTable = new CustomTable( &amp;staffCursor );
121 <a href="qsqlpropertymap.html">QSqlPropertyMap</a> *propMap = new <a href="qsqlpropertymap.html">QSqlPropertyMap</a>();
122 CustomSqlEditorFactory *editorFactory = new CustomSqlEditorFactory();
123 propMap-&gt;<a href="qsqlpropertymap.html#insert">insert</a>( "StatusPicker", "statusid" );
124 staffTable-&gt;<a href="qdatatable.html#installPropertyMap">installPropertyMap</a>( propMap );
125 staffTable-&gt;<a href="qdatatable.html#installEditorFactory">installEditorFactory</a>( editorFactory );
126
127 app.<a href="qapplication.html#setMainWidget">setMainWidget</a>( staffTable );
128
129 staffTable-&gt;<a href="qdatatable.html#addColumn">addColumn</a>( "forename", "Forename" );
130 staffTable-&gt;<a href="qdatatable.html#addColumn">addColumn</a>( "surname", "Surname" );
131 staffTable-&gt;<a href="qdatatable.html#addColumn">addColumn</a>( "salary", "Annual Salary" );
132 staffTable-&gt;<a href="qdatatable.html#addColumn">addColumn</a>( "statusid", "Status" );
133
134 <a href="qstringlist.html">QStringList</a> order = QStringList() &lt;&lt; "surname" &lt;&lt; "forename";
135 staffTable-&gt;<a href="qdatatable.html#setSort">setSort</a>( order );
136
137 staffTable-&gt;<a href="qdatatable.html#refresh">refresh</a>();
138 staffTable-&gt;<a href="qwidget.html#show">show</a>();
139
140 return app.<a href="qapplication.html#exec">exec</a>();
141 }
142
143 return 1;
144}
145</pre><!-- eof -->
146<p><address><hr><div align=center>
147<table width=100% cellspacing=0 border=0><tr>
148<td>Copyright &copy; 2007
149<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
150<td align=right><div align=right>Qt 3.3.8</div>
151</table></div></address></body>
152</html>
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