From bd0f3345a938b35ce6a12f6150373b0955b8dd12 Mon Sep 17 00:00:00 2001 From: Timothy Pearson Date: Sun, 10 Jul 2011 15:24:15 -0500 Subject: Add Qt3 development HEAD version --- doc/html/table-statistics-statistics-cpp.html | 214 ++++++++++++++++++++++++++ 1 file changed, 214 insertions(+) create mode 100644 doc/html/table-statistics-statistics-cpp.html (limited to 'doc/html/table-statistics-statistics-cpp.html') 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 @@ + + + + + +table/statistics/statistics.cpp Example File + + + + + + + +

table/statistics/statistics.cpp Example File

+ + +

/****************************************************************************
+** $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 <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 );
+}
+

+ +

Trademarks +

Qt 3.3.8

+ -- cgit v1.2.1