/****************************************************************************+
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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 demonstration applications 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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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#ifndef XFORM_H+
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#define XFORM_H+
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+
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#include "arthurwidgets.h"+
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+
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#include <QBasicTimer>+
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#include <QPolygonF>+
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+
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class HoverPoints;+
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QT_FORWARD_DECLARE_CLASS(QLineEdit)+
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+
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class XFormView : public ArthurFrame+
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{+
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public:+
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    Q_OBJECT+
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+
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    Q_PROPERTY(XFormType type READ type WRITE setType)+
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    Q_PROPERTY(bool animation READ animation WRITE setAnimation)+
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    Q_PROPERTY(qreal shear READ shear WRITE setShear)+
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    Q_PROPERTY(qreal rotation READ rotation WRITE setRotation)+
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    Q_PROPERTY(qreal scale READ scale WRITE setScale)+
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    Q_PROPERTY(QString text READ text WRITE setText)+
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    Q_PROPERTY(QPixmap pixmap READ pixmap WRITE setPixmap)+
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    Q_ENUMS(XFormType)+
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+
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public:+
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    enum XFormType { VectorType, PixmapType, TextType };+
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+
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    XFormView(QWidget *parent);+
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    void paint(QPainter *);+
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    void drawVectorType(QPainter *painter);+
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    void drawPixmapType(QPainter *painter);+
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    void drawTextType(QPainter *painter);+
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    QSize sizeHint() const { return QSize(500, 500); }+
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+
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    void mousePressEvent(QMouseEvent *e);+
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    void resizeEvent(QResizeEvent *e);+
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    HoverPoints *hoverPoints() { return pts; }+
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+
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    bool animation() const { return timer.isActive(); }+
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    qreal shear() const { return m_shear; }+
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    qreal scale() const { return m_scale; }+
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    qreal rotation() const { return m_rotation; }+
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    void setShear(qreal s);+
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    void setScale(qreal s);+
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    void setRotation(qreal r);+
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+
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    XFormType type() const;+
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    QPixmap pixmap() const;+
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    QString text() const;+
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+
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public slots:+
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    void setAnimation(bool animate);+
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    void updateCtrlPoints(const QPolygonF &);+
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    void changeRotation(int rotation);+
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    void changeScale(int scale);+
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    void changeShear(int shear);+
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+
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    void setText(const QString &);+
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    void setPixmap(const QPixmap &);+
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    void setType(XFormType t);+
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+
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    void setVectorType();+
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    void setPixmapType();+
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    void setTextType();+
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    void reset();+
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+
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signals:+
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    void rotationChanged(int rotation);+
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    void scaleChanged(int scale);+
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    void shearChanged(int shear);+
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+
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protected:+
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    void timerEvent(QTimerEvent *e);+
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    void wheelEvent(QWheelEvent *);+
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+
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private:+
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    QPolygonF ctrlPoints;+
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    HoverPoints *pts;+
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    qreal m_rotation;+
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    qreal m_scale;+
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    qreal m_shear;+
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    XFormType m_type;+
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    QPixmap m_pixmap;+
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    QString m_text;+
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    QBasicTimer timer;+
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};+
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+
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class XFormWidget : public QWidget+
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{+
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    Q_OBJECT+
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public:+
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    XFormWidget(QWidget *parent);+
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+
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private:+
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    XFormView *view;+
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    QLineEdit *textEditor;+
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};+
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+
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#endif // XFORM_H+
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