#include "widget.h"

Widget::Widget(QWidget *parent)
    : QWidget(parent)
{
    QPalette p;
    p.setColor( QPalette::Text, Qt::red );
    QApplication::setPalette( p );

    scene = new QGraphicsScene( this );
    view =  new QGraphicsView( scene, this );

    text = new QGraphicsTextItem( "this text should be red", 0, scene );

    b = new QPushButton( "Change app palette...", this );
    connect( b, SIGNAL( clicked() ), this, SLOT( OnButtonClicked() ) );

    QVBoxLayout* l = new QVBoxLayout( this );
    l->addWidget( b );
    l->addWidget( view );
}

void Widget::OnButtonClicked()
{
    text->setPlainText( "this text should be green" );
    QPalette p;
    p.setColor( QPalette::Text, Qt::green );
    QApplication::setPalette( p );
}