|  | Home · All Classes · Main Classes · Grouped Classes · Modules · Functions |

# renderarea.cpp Example File
painting/painterpaths/renderarea.cpp

     /****************************************************************************
     **
     ** Copyright (C) 2005-2006 Trolltech ASA. All rights reserved.
     **
     ** This file is part of the example classes of the Qt Toolkit.
     **
     ** This file may be used under the terms of the GNU General Public
     ** License version 2.0 as published by the Free Software Foundation
     ** and appearing in the file LICENSE.GPL included in the packaging of
     ** this file.  Please review the following information to ensure GNU
     ** General Public Licensing requirements will be met:
     ** http://www.trolltech.com/products/qt/opensource.html
     **
     ** If you are unsure which license is appropriate for your use, please
     ** review the following information:
     ** http://www.trolltech.com/products/qt/licensing.html or contact the
     ** sales department at sales@trolltech.com.
     **
     ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
     ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
     **
     ****************************************************************************/

     #include <QtGui>

     #include "renderarea.h"

     RenderArea::RenderArea(const QPainterPath &path, QWidget *parent)
         : QWidget(parent), path(path)
     {
         penWidth = 1;
         rotationAngle = 0;
         setBackgroundRole(QPalette::Base);
     }

     QSize RenderArea::minimumSizeHint() const
     {
         return QSize(50, 50);
     }

     QSize RenderArea::sizeHint() const
     {
         return QSize(100, 100);
     }

     void RenderArea::setFillRule(Qt::FillRule rule)
     {
         path.setFillRule(rule);
         update();
     }

     void RenderArea::setFillGradient(const QColor &color1, const QColor &color2)
     {
         fillColor1 = color1;
         fillColor2 = color2;
         update();
     }

     void RenderArea::setPenWidth(int width)
     {
         penWidth = width;
         update();
     }

     void RenderArea::setPenColor(const QColor &color)
     {
         penColor = color;
         update();
     }

     void RenderArea::setRotationAngle(int degrees)
     {
         rotationAngle = degrees;
         update();
     }

     void RenderArea::paintEvent(QPaintEvent *)
     {
         QPainter painter(this);
         painter.setRenderHint(QPainter::Antialiasing);
         painter.scale(width() / 100.0, height() / 100.0);
         painter.translate(50.0, 50.0);
         painter.rotate(-rotationAngle);
         painter.translate(-50.0, -50.0);

         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);
     }