source: trunk/examples/painting/transformations/renderarea.cpp@ 462

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#include <QtGui>

#include "renderarea.h"

//! [0]
RenderArea::RenderArea(QWidget *parent)
    : QWidget(parent)
{
    QFont newFont = font();
    newFont.setPixelSize(12);
    setFont(newFont);

    QFontMetrics fontMetrics(newFont);
    xBoundingRect = fontMetrics.boundingRect(tr("x"));
    yBoundingRect = fontMetrics.boundingRect(tr("y"));
}
//! [0]

//! [1]
void RenderArea::setOperations(const QList<Operation> &operations)
{
    this->operations = operations;
    update();
}
//! [1]

//! [2]
void RenderArea::setShape(const QPainterPath &shape)
{
    this->shape = shape;
    update();
}
//! [2]

//! [3]
QSize RenderArea::minimumSizeHint() const
{
    return QSize(182, 182);
}
//! [3]

//! [4]
QSize RenderArea::sizeHint() const
{
    return QSize(232, 232);
}
//! [4]

//! [5]
void RenderArea::paintEvent(QPaintEvent *event)
{
    QPainter painter(this);
    painter.setRenderHint(QPainter::Antialiasing);
    painter.fillRect(event->rect(), QBrush(Qt::white));

    painter.translate(66, 66);
//! [5]

//! [6]
    painter.save();
    transformPainter(painter);
    drawShape(painter);
    painter.restore();
//! [6]

//! [7]
    drawOutline(painter);
//! [7]

//! [8]
    transformPainter(painter);
    drawCoordinates(painter);
}
//! [8]

//! [9]
void RenderArea::drawCoordinates(QPainter &painter)
{
    painter.setPen(Qt::red);