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tqt3/examples/table/statistics/statistics.cpp

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/****************************************************************************
**
** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
**
** This file is part of an example program for TQt. This example
** program may be used, distributed and modified without limitation.
**
*****************************************************************************/
#include "statistics.h"
#include <ntqdir.h>
#include <ntqstringlist.h>
#include <ntqheader.h>
#include <ntqcombobox.h>
#include <stdlib.h>
const char* dirs[] = {
"kernel",
"tools",
"widgets",
"dialogs",
"xml",
"table",
"network",
"opengl",
"canvas",
0
};
Table::Table()
: TQTable( 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 TQt source and header files into a list
TQStringList all;
int i = 0;
TQString srcdir( "../../../src/" );
while ( dirs[ i ] ) {
TQDir dir( srcdir + dirs[ i ] );
TQStringList lst = dir.entryList( "*.cpp; *.h" );
for ( TQStringList::Iterator it = lst.begin(); it != lst.end(); ++it ) {
if ( ( *it ).contains( "moc" ) )
continue;
all << (TQString( 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 ( TQStringList::Iterator it = all.begin(); it != all.end(); ++it ) {
setText( i, 0, *it );
TQFile f( srcdir + *it );
setText( i, 1, TQString::number( (ulong)f.size() ) );
ComboItem *ci = new ComboItem( this, TQTableItem::WhenCurrent );
setItem( i++, 2, ci );
sum += f.size();
}
// last row should show the sum
TableItem *i1 = new TableItem( this, TQTableItem::Never, tr( "Sum" ) );
setItem( i, 0, i1 );
TableItem *i2 = new TableItem( this, TQTableItem::Never, TQString::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, TQTableItem::Never, tr( "Sum" ) );
setItem( numRows() - 1, 0, i1 );
TableItem *i2 = new TableItem( this, TQTableItem::Never, TQString::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
TQTable::sortColumn( col, ascending, TRUE );
// re-insert sum row
recalcSum( 0, 1 );
}
void TableItem::paint( TQPainter *p, const TQColorGroup &cg, const TQRect &cr, bool selected )
{
TQColorGroup 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( TQColorGroup::Base, red );
TQTableItem::paint( p, g, cr, selected );
}
ComboItem::ComboItem( TQTable *t, EditType et )
: TQTableItem( t, et, "Yes" ), cb( 0 )
{
// we do not want this item to be replaced
setReplaceable( FALSE );
}
TQWidget *ComboItem::createEditor() const
{
// create an editor - a combobox in our case
( (ComboItem*)this )->cb = new TQComboBox( table()->viewport() );
TQObject::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( TQWidget *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( "TQComboBox" ) )
setText( ( (TQComboBox*)w )->currentText() );
else
TQTableItem::setContentFromEditor( w );
}
void ComboItem::setText( const TQString &s )
{
if ( cb ) {
// initialize the combobox from the text
if ( s == "No" )
cb->setCurrentItem( 1 );
else
cb->setCurrentItem( 0 );
}
TQTableItem::setText( s );
}