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# chart/optionsform.cpp Example File

    #include "optionsform.h"

    #include <qbuttongroup.h>
    #include <qcombobox.h>
    #include <qfontdialog.h>
    #include <qframe.h>
    #include <qimage.h>
    #include <qlabel.h>
    #include <qlayout.h>
    #include <qpushbutton.h>
    #include <qradiobutton.h>
    #include <qspinbox.h>

    #include "images/options_horizontalbarchart.xpm"
    #include "images/options_piechart.xpm"
    #include "images/options_verticalbarchart.xpm"

    OptionsForm::OptionsForm( QWidget* parent, const char* name,
                              bool modal, WFlags f )
        : QDialog( parent, name, modal, f )
    {
        setCaption( "Chart -- Options" );
        resize( 320, 290 );

        optionsFormLayout = new QVBoxLayout( this, 11, 6 );

        chartTypeLayout = new QHBoxLayout( 0, 0, 6 );

        chartTypeTextLabel = new QLabel( "&Chart Type", this );
        chartTypeLayout->addWidget( chartTypeTextLabel );

        chartTypeComboBox = new QComboBox( FALSE, this );
        chartTypeComboBox->insertItem( QPixmap( options_piechart ), "Pie Chart" );
        chartTypeComboBox->insertItem( QPixmap( options_verticalbarchart ),
                                       "Vertical Bar Chart" );
        chartTypeComboBox->insertItem( QPixmap( options_horizontalbarchart ),
                                       "Horizontal Bar Chart" );
        chartTypeLayout->addWidget( chartTypeComboBox );
        optionsFormLayout->addLayout( chartTypeLayout );

        fontLayout = new QHBoxLayout( 0, 0, 6 );

        fontPushButton = new QPushButton( "&Font...", this );
        fontLayout->addWidget( fontPushButton );
        QSpacerItem* spacer = new QSpacerItem( 0, 0,
                                               QSizePolicy::Expanding,
                                               QSizePolicy::Minimum );
        fontLayout->addItem( spacer );

        fontTextLabel = new QLabel( this ); // Must be set by caller via setFont()
        fontLayout->addWidget( fontTextLabel );
        optionsFormLayout->addLayout( fontLayout );

        addValuesFrame = new QFrame( this );
        addValuesFrame->setFrameShape( QFrame::StyledPanel );
        addValuesFrame->setFrameShadow( QFrame::Sunken );
        addValuesFrameLayout = new QVBoxLayout( addValuesFrame, 11, 6 );

        addValuesButtonGroup = new QButtonGroup( "Show Values", addValuesFrame );
        addValuesButtonGroup->setColumnLayout(0, Qt::Vertical );
        addValuesButtonGroup->layout()->setSpacing( 6 );
        addValuesButtonGroup->layout()->setMargin( 11 );
        addValuesButtonGroupLayout = new QVBoxLayout(
                                            addValuesButtonGroup->layout() );
        addValuesButtonGroupLayout->setAlignment( Qt::AlignTop );

        noRadioButton = new QRadioButton( "&No", addValuesButtonGroup );
        noRadioButton->setChecked( TRUE );
        addValuesButtonGroupLayout->addWidget( noRadioButton );

        yesRadioButton = new QRadioButton( "&Yes", addValuesButtonGroup );
        addValuesButtonGroupLayout->addWidget( yesRadioButton );

        asPercentageRadioButton = new QRadioButton( "As &Percentage",
                                                    addValuesButtonGroup );
        addValuesButtonGroupLayout->addWidget( asPercentageRadioButton );
        addValuesFrameLayout->addWidget( addValuesButtonGroup );

        decimalPlacesLayout = new QHBoxLayout( 0, 0, 6 );

        decimalPlacesTextLabel = new QLabel( "&Decimal Places", addValuesFrame );
        decimalPlacesLayout->addWidget( decimalPlacesTextLabel );

        decimalPlacesSpinBox = new QSpinBox( addValuesFrame );
        decimalPlacesSpinBox->setMinValue( 0 );
        decimalPlacesSpinBox->setMaxValue( 9 );
        decimalPlacesLayout->addWidget( decimalPlacesSpinBox );

        addValuesFrameLayout->addLayout( decimalPlacesLayout );

        optionsFormLayout->addWidget( addValuesFrame );

        buttonsLayout = new QHBoxLayout( 0, 0, 6 );
        spacer = new QSpacerItem( 0, 0,
                                  QSizePolicy::Expanding, QSizePolicy::Minimum );
        buttonsLayout->addItem( spacer );

        okPushButton = new QPushButton( "OK", this );
        okPushButton->setDefault( TRUE );
        buttonsLayout->addWidget( okPushButton );

        cancelPushButton = new QPushButton( "Cancel", this );
        buttonsLayout->addWidget( cancelPushButton );
        optionsFormLayout->addLayout( buttonsLayout );

        connect( fontPushButton, SIGNAL( clicked() ), this, SLOT( chooseFont() ) );
        connect( okPushButton, SIGNAL( clicked() ), this, SLOT( accept() ) );
        connect( cancelPushButton, SIGNAL( clicked() ), this, SLOT( reject() ) );

        chartTypeTextLabel->setBuddy( chartTypeComboBox );
        decimalPlacesTextLabel->setBuddy( decimalPlacesSpinBox );
    }

    void OptionsForm::chooseFont()
    {
        bool ok;
        QFont font = QFontDialog::getFont( &ok, m_font, this );
        if ( ok )
            setFont( font );
    }

    void OptionsForm::setFont( QFont font )
    {
        QString label = font.family() + " " +
                        QString::number( font.pointSize() ) + "pt";
        if ( font.bold() )
            label += " Bold";
        if ( font.italic() )
            label += " Italic";
        fontTextLabel->setText( label );
        m_font = font;
    }