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

glwidget.cpp Example File
opengl/2dpainting/glwidget.cpp

    /****************************************************************************
    **
    ** Copyright (C) 2006-2006 Trolltech AS. All rights reserved.
    **
    ** This file is part of the documentation 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 "glwidget.h"
    #include "helper.h"

    GLWidget::GLWidget(Helper *helper, QWidget *parent)
        : QGLWidget(QGLFormat(QGL::SampleBuffers), parent), helper(helper)
    {
        elapsed = 0;
        setFixedSize(200, 200);
    }

    void GLWidget::animate()
    {
        elapsed = (elapsed + qobject_cast<QTimer*>(sender())->interval()) % 1000;
        repaint();
    }

    void GLWidget::paintEvent(QPaintEvent *event)
    {
        QPainter painter;
        painter.begin(this);
        helper->paint(&painter, event, elapsed);
        painter.end();
    }


Copyright © 2006 Trolltech Trademarks
Qt 4.1.3