/****************************************************************************** $Id: qt/statistics.cpp   3.1.1   edited Nov 8 10:35 $**** Copyright (C) 1992-2000 Trolltech AS.  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 <qdir.h>#include <qstringlist.h>#include <qheader.h>#include <qcombobox.h>#include <stdlib.h>const char* dirs[] = {    "kernel",    "tools",    "widgets",    "dialogs",    "xml",    "table",    "network",    "opengl",    "canvas",    0};Table::Table()    : QTable( 10, 100, 0, "table" ){    setSorting( TRUE );    horizontalHeader()->setLabel( 0, tr( "File" ) );    horizontalHeader()->setLabel( 1, tr( "Size (bytes)" ) );    horizontalHeader()->setLabel( 2, tr( "Use in Sum" ) );    initTable();    adjustColumn( 0 );    // if the user edited something we might need to recalculate the sum    connect( this, SIGNAL( valueChanged( int, int ) ),	     this, SLOT( recalcSum( int, int ) ) );}void Table::initTable(){    // read all the Qt source and header files into a list    QStringList all;    int i = 0;    QString qtdir( QT_SOURCE_TREE );    while ( dirs[ i ] ) {	QDir dir( qtdir + "/src/" + dirs[ i ] );	QStringList lst = dir.entryList( "*.cpp; *.h" );	for ( QStringList::Iterator it = lst.begin(); it != lst.end(); ++it ) {	    if ( ( *it ).contains( "moc" ) )		continue;	    all << (QString( dirs[ i ] ) + "/" + *it);	}	++i;    }    // set the number of rows we'll need for the table    setNumRows( all.count() + 1 );    i = 0;    int sum = 0;    // insert the data into the table    for ( QStringList::Iterator it = all.begin(); it != all.end(); ++it ) {	setText( i, 0, *it );	QFile f( qtdir + "/src/" + *it );	setText( i, 1, QString::number( (ulong)f.size() ) );	ComboItem *ci = new ComboItem( this, QTableItem::WhenCurrent );	setItem( i++, 2, ci );	sum += f.size();    }    // last row should show the sum    TableItem *i1 = new TableItem( this, QTableItem::Never, tr( "Sum" ) );    setItem( i, 0, i1 );    TableItem *i2 = new TableItem( this, QTableItem::Never, QString::number( sum ) );    setItem( i, 1, i2 );}void 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 ( text( i, 2 ) == "No" )	    continue;	sum += text( 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 );}void Table::sortColumn( 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::sortColumn( col, ascending, TRUE );    // re-insert sum row    recalcSum( 0, 1 );}void TableItem::paint( QPainter *p, const QColorGroup &cg, const QRect &cr, bool selected ){    QColorGroup g( cg );    // last row is the sum row - we want to make it more visible by    // using a red background    if ( row() == table()->numRows() - 1 )	g.setColor( QColorGroup::Base, red );    QTableItem::paint( p, g, cr, selected );}ComboItem::ComboItem( QTable *t, EditType et )    : QTableItem( t, et, "Yes" ), cb( 0 ){    // we do not want this item to be replaced    setReplaceable( FALSE );}QWidget *ComboItem::createEditor() const{    // create an editor - a combobox in our case    ( (ComboItem*)this )->cb = new QComboBox( table()->viewport() );    QObject::connect( cb, SIGNAL( activated( int ) ), table(), SLOT( doValueChanged() ) );    cb->insertItem( "Yes" );    cb->insertItem( "No" );    // and initialize it    cb->setCurrentItem( text() == "No" ? 1 : 0 );    return cb;}void ComboItem::setContentFromEditor( QWidget *w ){    // the user changed the value of the combobox, so synchronize the    // value of the item (its text), with the value of the combobox    if ( w->inherits( "QComboBox" ) )	setText( ( (QComboBox*)w )->currentText() );    else	QTableItem::setContentFromEditor( w );}void ComboItem::setText( const QString &s ){    if ( cb ) {	// initialize the combobox from the text	if ( s == "No" )	    cb->setCurrentItem( 1 );	else	    cb->setCurrentItem( 0 );    }    QTableItem::setText( s );}