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Diffstat (limited to 'examples/table/statistics/statistics.cpp')
| -rw-r--r-- | examples/table/statistics/statistics.cpp | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/examples/table/statistics/statistics.cpp b/examples/table/statistics/statistics.cpp new file mode 100644 index 000000000..f64b67568 --- /dev/null +++ b/examples/table/statistics/statistics.cpp @@ -0,0 +1,171 @@ +/**************************************************************************** +** +** 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 <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() + : 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 ); +} |