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#include <QtGui>

#include "renderarea.h"

//! [0]

RenderArea::RenderArea(const QPainterPath &path, QWidget *parent)

    : QWidget(parent), path(path)

{

    penWidth = 1;

    rotationAngle = 0;

    setBackgroundRole(QPalette::Base);

}

//! [0]

//! [1]

QSize RenderArea::minimumSizeHint() const

{

    return QSize(50, 50);

}

//! [1]

//! [2]

QSize RenderArea::sizeHint() const

{

    return QSize(100, 100);

}

//! [2]

//! [3]

void RenderArea::setFillRule(Qt::FillRule rule)

{

    path.setFillRule(rule);

    update();

}

//! [3]

//! [4]

void RenderArea::setFillGradient(const QColor &color1, const QColor &color2)

{

    fillColor1 = color1;

    fillColor2 = color2;

    update();

}

//! [4]

//! [5]

void RenderArea::setPenWidth(int width)

{

    penWidth = width;

    update();

}

//! [5]

//! [6]

void RenderArea::setPenColor(const QColor &color)

{

    penColor = color;

    update();

}

//! [6]

//! [7]

void RenderArea::setRotationAngle(int degrees)

{

    rotationAngle = degrees;

    update();

}

//! [7]

//! [8]

void RenderArea::paintEvent(QPaintEvent *)

{

    QPainter painter(this);

    painter.setRenderHint(QPainter::Antialiasing);

//! [8] //! [9]

    painter.scale(width() / 100.0, height() / 100.0);

    painter.translate(50.0, 50.0);

    painter.rotate(-rotationAngle);

    painter.translate(-50.0, -50.0);

//! [9] //! [10]

    painter.setPen(QPen(penColor, penWidth, Qt::SolidLine, Qt::RoundCap,

                        Qt::RoundJoin));

    QLinearGradient gradient(0, 0, 0, 100);

    gradient.setColorAt(0.0, fillColor1);

    gradient.setColorAt(1.0, fillColor2);

    painter.setBrush(gradient);

    painter.drawPath(path);

}

//! [10]