Add Qt3 development HEAD version

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 0000000..aaac782
--- /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 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 srcdir( "../../../src/" );
+    while ( dirs[ i ] ) {
+	QDir dir( srcdir + 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( srcdir + *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 );
+}