diff options
| author | Timothy Pearson <kb9vqf@pearsoncomputing.net> | 2011-07-10 15:24:15 -0500 |
|---|---|---|
| committer | Timothy Pearson <kb9vqf@pearsoncomputing.net> | 2011-07-10 15:24:15 -0500 |
| commit | bd0f3345a938b35ce6a12f6150373b0955b8dd12 (patch) | |
| tree | 7a520322212d48ebcb9fbe1087e7fca28b76185c /doc/html/table-statistics-statistics-cpp.html | |
| download | qt3-bd0f3345a938b35ce6a12f6150373b0955b8dd12.tar.gz qt3-bd0f3345a938b35ce6a12f6150373b0955b8dd12.zip | |
Add Qt3 development HEAD version
Diffstat (limited to 'doc/html/table-statistics-statistics-cpp.html')
| -rw-r--r-- | doc/html/table-statistics-statistics-cpp.html | 214 |
1 files changed, 214 insertions, 0 deletions
diff --git a/doc/html/table-statistics-statistics-cpp.html b/doc/html/table-statistics-statistics-cpp.html new file mode 100644 index 0000000..046eb88 --- /dev/null +++ b/doc/html/table-statistics-statistics-cpp.html @@ -0,0 +1,214 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> +<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/src/table/qtable.cpp:1657 --> +<html> +<head> +<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> +<title>table/statistics/statistics.cpp Example File</title> +<style type="text/css"><!-- +fn { margin-left: 1cm; text-indent: -1cm; } +a:link { color: #004faf; text-decoration: none } +a:visited { color: #672967; text-decoration: none } +body { background: #ffffff; color: black; } +--></style> +</head> +<body> + +<table border="0" cellpadding="0" cellspacing="0" width="100%"> +<tr bgcolor="#E5E5E5"> +<td valign=center> + <a href="index.html"> +<font color="#004faf">Home</font></a> + | <a href="classes.html"> +<font color="#004faf">All Classes</font></a> + | <a href="mainclasses.html"> +<font color="#004faf">Main Classes</font></a> + | <a href="annotated.html"> +<font color="#004faf">Annotated</font></a> + | <a href="groups.html"> +<font color="#004faf">Grouped Classes</font></a> + | <a href="functions.html"> +<font color="#004faf">Functions</font></a> +</td> +<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>table/statistics/statistics.cpp Example File</h1> + + +<pre>/**************************************************************************** +** $Id: qt/statistics.cpp 3.3.8 edited Jan 11 14:37 $ +** +** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved. +** +** This file is part of an example program for Qt. This example +** program may be used, distributed and modified without limitation. +** +*****************************************************************************/ + +#include "statistics.h" + +#include <<a href="qdir-h.html">qdir.h</a>> +#include <<a href="qstringlist-h.html">qstringlist.h</a>> +#include <<a href="qheader-h.html">qheader.h</a>> +#include <<a href="qcombobox-h.html">qcombobox.h</a>> +#include <stdlib.h> + +const char* dirs[] = { + "kernel", + "tools", + "widgets", + "dialogs", + "xml", + "table", + "network", + "opengl", + "canvas", + 0 +}; + +<a name="f145"></a>Table::Table() + : <a href="qtable.html">QTable</a>( 10, 100, 0, "table" ) +{ + <a href="qtable.html#setSorting">setSorting</a>( TRUE ); + <a href="qtable.html#horizontalHeader">horizontalHeader</a>()->setLabel( 0, tr( "File" ) ); + <a href="qtable.html#horizontalHeader">horizontalHeader</a>()->setLabel( 1, tr( "Size (bytes)" ) ); + <a href="qtable.html#horizontalHeader">horizontalHeader</a>()->setLabel( 2, tr( "Use in Sum" ) ); + initTable(); + <a href="qtable.html#adjustColumn">adjustColumn</a>( 0 ); + + // if the user edited something we might need to recalculate the sum + <a href="qobject.html#connect">connect</a>( this, SIGNAL( <a href="qtable.html#valueChanged">valueChanged</a>( int, int ) ), + this, SLOT( recalcSum( int, int ) ) ); +} + +void <a name="f146"></a>Table::initTable() +{ + // read all the Qt source and header files into a list + <a href="qstringlist.html">QStringList</a> all; + int i = 0; + <a href="qstring.html">QString</a> srcdir( "../../../src/" ); + while ( dirs[ i ] ) { + <a href="qdir.html">QDir</a> dir( srcdir + dirs[ i ] ); +<a name="x2780"></a> <a href="qstringlist.html">QStringList</a> lst = dir.<a href="qdir.html#entryList">entryList</a>( "*.cpp; *.h" ); +<a name="x2791"></a><a name="x2789"></a> for ( QStringList::Iterator it = lst.<a href="qvaluelist.html#begin">begin</a>(); it != lst.<a href="qvaluelist.html#end">end</a>(); ++it ) { + if ( ( *it ).contains( "moc" ) ) + continue; + all << (QString( dirs[ i ] ) + "/" + *it); + } + ++i; + } + + // set the number of rows we'll need for the table +<a name="x2790"></a> <a href="qtable.html#setNumRows">setNumRows</a>( all.<a href="qvaluelist.html#count">count</a>() + 1 ); + i = 0; + int sum = 0; + + // insert the data into the table + for ( QStringList::Iterator it = all.<a href="qvaluelist.html#begin">begin</a>(); it != all.<a href="qvaluelist.html#end">end</a>(); ++it ) { + <a href="qtable.html#setText">setText</a>( i, 0, *it ); + <a href="qfile.html">QFile</a> f( srcdir + *it ); +<a name="x2781"></a> <a href="qtable.html#setText">setText</a>( i, 1, QString::number( (ulong)f.<a href="qfile.html#size">size</a>() ) ); + ComboItem *ci = new ComboItem( this, QTableItem::WhenCurrent ); + <a href="qtable.html#setItem">setItem</a>( i++, 2, ci ); + sum += f.<a href="qfile.html#size">size</a>(); + } + + // last row should show the sum + TableItem *i1 = new TableItem( this, QTableItem::Never, tr( "Sum" ) ); + <a href="qtable.html#setItem">setItem</a>( i, 0, i1 ); + TableItem *i2 = new TableItem( this, QTableItem::Never, QString::number( sum ) ); + <a href="qtable.html#setItem">setItem</a>( i, 1, i2 ); +} + +void <a name="f147"></a>Table::recalcSum( int, int col ) +{ + // only recalc if a value in the second or third column changed + if ( col < 1 || col > 2 ) + return; + + // recalc sum + int sum = 0; + for ( int i = 0; i < numRows() - 1; ++i ) { + if ( <a href="qtableitem.html#text">text</a>( i, 2 ) == "No" ) + continue; + sum += <a href="qtableitem.html#text">text</a>( i, 1 ).toInt(); + } + + // insert calculated data + TableItem *i1 = new TableItem( this, QTableItem::Never, tr( "Sum" ) ); + setItem( numRows() - 1, 0, i1 ); + TableItem *i2 = new TableItem( this, QTableItem::Never, QString::number( sum ) ); + setItem( numRows() - 1, 1, i2 ); +} + +<a name="x2784"></a>void Table::<a href="qtable.html#sortColumn">sortColumn</a>( int col, bool ascending, bool /*wholeRows*/ ) +{ + // sum row should not be sorted, so get rid of it for now + clearCell( numRows() - 1, 0 ); + clearCell( numRows() - 1, 1 ); + // do sort + QTable::<a href="qtable.html#sortColumn">sortColumn</a>( col, ascending, TRUE ); + // re-insert sum row + recalcSum( 0, 1 ); +} + + + +<a name="x2786"></a>void TableItem::<a href="qtableitem.html#paint">paint</a>( <a href="qpainter.html">QPainter</a> *p, const <a href="qcolorgroup.html">QColorGroup</a> &cg, const <a href="qrect.html">QRect</a> &cr, bool selected ) +{ + <a href="qcolorgroup.html">QColorGroup</a> g( cg ); + // last row is the sum row - we want to make it more visible by + // using a red background + if ( <a href="qtableitem.html#row">row</a>() == <a href="qtableitem.html#table">table</a>()->numRows() - 1 ) +<a name="x2779"></a> g.<a href="qcolorgroup.html#setColor">setColor</a>( QColorGroup::Base, red ); + QTableItem::<a href="qtableitem.html#paint">paint</a>( p, g, cr, selected ); +} + + + + +<a name="f144"></a>ComboItem::ComboItem( <a href="qtable.html">QTable</a> *t, EditType et ) + : <a href="qtableitem.html">QTableItem</a>( t, et, "Yes" ), cb( 0 ) +{ + // we do not want this item to be replaced + <a href="qtableitem.html#setReplaceable">setReplaceable</a>( FALSE ); +} + +<a name="x2785"></a>QWidget *ComboItem::<a href="qtableitem.html#createEditor">createEditor</a>() const +{ + // create an editor - a combobox in our case + ( (ComboItem*)this )->cb = new <a href="qcombobox.html">QComboBox</a>( <a href="qtableitem.html#table">table</a>()->viewport() ); + QObject::<a href="qobject.html#connect">connect</a>( cb, SIGNAL( activated( int ) ), table(), SLOT( doValueChanged() ) ); + cb->insertItem( "Yes" ); + cb->insertItem( "No" ); + // and initialize it + cb->setCurrentItem( <a href="qtableitem.html#text">text</a>() == "No" ? 1 : 0 ); + return cb; +} + +<a name="x2787"></a>void ComboItem::<a href="qtableitem.html#setContentFromEditor">setContentFromEditor</a>( <a href="qwidget.html">QWidget</a> *w ) +{ + // the user changed the value of the combobox, so synchronize the + // value of the item (its text), with the value of the combobox +<a name="x2783"></a> if ( w-><a href="qobject.html#inherits">inherits</a>( "QComboBox" ) ) + <a href="qtableitem.html#setText">setText</a>( ( (QComboBox*)w )->currentText() ); + else + QTableItem::<a href="qtableitem.html#setContentFromEditor">setContentFromEditor</a>( w ); +} + +<a name="x2788"></a>void ComboItem::<a href="qtableitem.html#setText">setText</a>( const <a href="qstring.html">QString</a> &s ) +{ + if ( cb ) { + // initialize the combobox from the text + if ( s == "No" ) + cb->setCurrentItem( 1 ); + else + cb->setCurrentItem( 0 ); + } + QTableItem::<a href="qtableitem.html#setText">setText</a>( s ); +} +</pre><!-- eof --> +<p><address><hr><div align=center> +<table width=100% cellspacing=0 border=0><tr> +<td>Copyright © 2007 +<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a> +<td align=right><div align=right>Qt 3.3.8</div> +</table></div></address></body> +</html> |