/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the examples of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#include <QtGui>+
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+
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#include "renderarea.h"+
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+
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//! [0]+
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RenderArea::RenderArea(QWidget *parent)+
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    : QWidget(parent)+
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{+
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    shape = Polygon;+
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    antialiased = false;+
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    transformed = false;+
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    pixmap.load(":/images/qt-logo.png");+
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+
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    setBackgroundRole(QPalette::Base);+
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    setAutoFillBackground(true);+
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}+
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//! [0]+
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+
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//! [1]+
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QSize RenderArea::minimumSizeHint() const+
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{+
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    return QSize(100, 100);+
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}+
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//! [1]+
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+
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//! [2]+
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QSize RenderArea::sizeHint() const+
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{+
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    return QSize(400, 200);+
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}+
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//! [2]+
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+
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//! [3]+
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void RenderArea::setShape(Shape shape)+
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{+
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    this->shape = shape;+
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    update();+
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}+
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//! [3]+
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+
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//! [4]+
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void RenderArea::setPen(const QPen &pen)+
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{+
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    this->pen = pen;+
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    update();+
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}+
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//! [4]+
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+
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//! [5]+
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void RenderArea::setBrush(const QBrush &brush)+
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{+
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    this->brush = brush;+
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    update();+
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}+
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//! [5]+
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+
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//! [6]+
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void RenderArea::setAntialiased(bool antialiased)+
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{+
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    this->antialiased = antialiased;+
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    update();+
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}+
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//! [6]+
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+
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//! [7]+
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void RenderArea::setTransformed(bool transformed)+
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{+
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    this->transformed = transformed;+
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    update();+
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}+
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//! [7]+
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+
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//! [8]+
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void RenderArea::paintEvent(QPaintEvent * /* event */)+
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{+
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    static const QPoint points[4] = {+
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        QPoint(10, 80),+
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        QPoint(20, 10),+
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        QPoint(80, 30),+
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        QPoint(90, 70)+
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    };+
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+
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    QRect rect(10, 20, 80, 60);+
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+
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    QPainterPath path;+
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    path.moveTo(20, 80);+
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    path.lineTo(20, 30);+
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    path.cubicTo(80, 0, 50, 50, 80, 80);+
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+
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    int startAngle = 20 * 16;+
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    int arcLength = 120 * 16;+
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//! [8]+
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+
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//! [9]+
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    QPainter painter(this);+
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    painter.setPen(pen);+
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    painter.setBrush(brush);+
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    if (antialiased)+
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        painter.setRenderHint(QPainter::Antialiasing, true);+
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//! [9]+
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+
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//! [10]+
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    for (int x = 0; x < width(); x += 100) {+
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        for (int y = 0; y < height(); y += 100) {+
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            painter.save();+
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            painter.translate(x, y);+
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//! [10] //! [11]+
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            if (transformed) {+
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                painter.translate(50, 50);+
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                painter.rotate(60.0);+
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                painter.scale(0.6, 0.9);+
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                painter.translate(-50, -50);+
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            }+
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//! [11]+
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+
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//! [12]+
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            switch (shape) {+
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            case Line:+
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                painter.drawLine(rect.bottomLeft(), rect.topRight());+
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                break;+
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            case Points:+
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                painter.drawPoints(points, 4);+
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                break;+
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            case Polyline:+
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                painter.drawPolyline(points, 4);+
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                break;+
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            case Polygon:+
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                painter.drawPolygon(points, 4);+
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                break;+
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            case Rect:+
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                painter.drawRect(rect);+
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                break;+
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            case RoundedRect:+
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                painter.drawRoundedRect(rect, 25, 25, Qt::RelativeSize);+
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                break;+
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            case Ellipse:+
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                painter.drawEllipse(rect);+
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                break;+
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            case Arc:+
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                painter.drawArc(rect, startAngle, arcLength);+
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                break;+
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            case Chord:+
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                painter.drawChord(rect, startAngle, arcLength);+
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                break;+
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            case Pie:+
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                painter.drawPie(rect, startAngle, arcLength);+
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                break;+
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            case Path:+
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                painter.drawPath(path);+
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                break;+
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            case Text:+
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                painter.drawText(rect, Qt::AlignCenter, tr("Qt by\nNokia"));+
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                break;+
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            case Pixmap:+
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                painter.drawPixmap(10, 10, pixmap);+
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            }+
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//! [12] //! [13]+
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            painter.restore();+
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        }+
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    }+
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+
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    painter.setRenderHint(QPainter::Antialiasing, false);+
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    painter.setPen(palette().dark().color());+
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    painter.setBrush(Qt::NoBrush);+
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    painter.drawRect(QRect(0, 0, width() - 1, height() - 1));+
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}+
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//! [13]+
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