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

renderarea.h Example File
painting/transformations/renderarea.h

 /****************************************************************************
 **
 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
 ** Contact: Qt Software Information ([email protected])
 **
 ** This file is part of the examples of the Qt Toolkit.
 **
 ** $QT_BEGIN_LICENSE:LGPL$
 ** Commercial Usage
 ** Licensees holding valid Qt Commercial licenses may use this file in
 ** accordance with the Qt Commercial License Agreement provided with the
 ** Software or, alternatively, in accordance with the terms contained in
 ** a written agreement between you and Nokia.
 **
 ** GNU Lesser General Public License Usage
 ** Alternatively, this file may be used under the terms of the GNU Lesser
 ** General Public License version 2.1 as published by the Free Software
 ** Foundation and appearing in the file LICENSE.LGPL included in the
 ** packaging of this file.  Please review the following information to
 ** ensure the GNU Lesser General Public License version 2.1 requirements
 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
 **
 ** In addition, as a special exception, Nokia gives you certain
 ** additional rights. These rights are described in the Nokia Qt LGPL
 ** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
 ** package.
 **
 ** GNU General Public License Usage
 ** Alternatively, this file may be used under the terms of the GNU
 ** General Public License version 3.0 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 the GNU General Public License version 3.0 requirements will be
 ** met: http://www.gnu.org/copyleft/gpl.html.
 **
 ** If you are unsure which license is appropriate for your use, please
 ** contact the sales department at [email protected].
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/

 #ifndef RENDERAREA_H
 #define RENDERAREA_H

 #include <QFont>
 #include <QList>
 #include <QPainterPath>
 #include <QRect>
 #include <QWidget>

 class QPaintEvent;

 enum Operation { NoTransformation, Translate, Rotate, Scale };

 class RenderArea : public QWidget
 {
     Q_OBJECT

 public:
     RenderArea(QWidget *parent = 0);

     void setOperations(const QList<Operation> &operations);
     void setShape(const QPainterPath &shape);

     QSize minimumSizeHint() const;
     QSize sizeHint() const;

 protected:
     void paintEvent(QPaintEvent *event);

 private:
     void drawCoordinates(QPainter &painter);
     void drawOutline(QPainter &painter);
     void drawShape(QPainter &painter);
     void transformPainter(QPainter &painter);

     QList<Operation> operations;
     QPainterPath shape;
     QRect xBoundingRect;
     QRect yBoundingRect;
 };

 #endif


Copyright © 2009 Nokia Corporation and/or its subsidiary(-ies) Trademarks
Qt 4.5.1