Qt Reference Documentation

xform.h Example File

 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 ** This file is part of the demonstration applications of the Qt Toolkit.
 ** No Commercial Usage
 ** This file contains pre-release code and may not be distributed.
 ** You may use this file in accordance with the terms and conditions
 ** contained in the Technology Preview License Agreement accompanying
 ** this package.
 ** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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 #ifndef XFORM_H
 #define XFORM_H

 #include "arthurwidgets.h"

 #include <QBasicTimer>
 #include <QPolygonF>

 class HoverPoints;

 class XFormView : public ArthurFrame

     Q_PROPERTY(XFormType type READ type WRITE setType)
     Q_PROPERTY(bool animation READ animation WRITE setAnimation)
     Q_PROPERTY(qreal shear READ shear WRITE setShear)
     Q_PROPERTY(qreal rotation READ rotation WRITE setRotation)
     Q_PROPERTY(qreal scale READ scale WRITE setScale)
     Q_PROPERTY(QString text READ text WRITE setText)
     Q_PROPERTY(QPixmap pixmap READ pixmap WRITE setPixmap)

     enum XFormType { VectorType, PixmapType, TextType };

     XFormView(QWidget *parent);
     void paint(QPainter *);
     void drawVectorType(QPainter *painter);
     void drawPixmapType(QPainter *painter);
     void drawTextType(QPainter *painter);
     QSize sizeHint() const { return QSize(500, 500); }

     void mousePressEvent(QMouseEvent *e);
     void resizeEvent(QResizeEvent *e);
     HoverPoints *hoverPoints() { return pts; }

     bool animation() const { return timer.isActive(); }
     qreal shear() const { return m_shear; }
     qreal scale() const { return m_scale; }
     qreal rotation() const { return m_rotation; }
     void setShear(qreal s);
     void setScale(qreal s);
     void setRotation(qreal r);

     XFormType type() const;
     QPixmap pixmap() const;
     QString text() const;

 public slots:
     void setAnimation(bool animate);
     void updateCtrlPoints(const QPolygonF &);
     void changeRotation(int rotation);
     void changeScale(int scale);
     void changeShear(int shear);

     void setText(const QString &);
     void setPixmap(const QPixmap &);
     void setType(XFormType t);

     void setVectorType();
     void setPixmapType();
     void setTextType();
     void reset();

     void rotationChanged(int rotation);
     void scaleChanged(int scale);
     void shearChanged(int shear);

     void timerEvent(QTimerEvent *e);
     void wheelEvent(QWheelEvent *);

     QPolygonF ctrlPoints;
     HoverPoints *pts;
     qreal m_rotation;
     qreal m_scale;
     qreal m_shear;
     XFormType m_type;
     QPixmap m_pixmap;
     QString m_text;
     QBasicTimer timer;

 class XFormWidget : public QWidget
     XFormWidget(QWidget *parent);

     XFormView *view;
     QLineEdit *textEditor;

 #endif // XFORM_H

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