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# qgraphicstransform.h

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    00001 /****************************************************************************
    00002 **
    00003 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
    00004 ** All rights reserved.
    00005 ** Contact: Nokia Corporation (qt-info@nokia.com)
    00006 **
    00007 ** This file is part of the QtGui module of the Qt Toolkit.
    00008 **
    00009 ** $QT_BEGIN_LICENSE:LGPL$
    00010 ** Commercial Usage
    00011 ** Licensees holding valid Qt Commercial licenses may use this file in
    00012 ** accordance with the Qt Commercial License Agreement provided with the
    00013 ** Software or, alternatively, in accordance with the terms contained in
    00014 ** a written agreement between you and Nokia.
    00015 **
    00016 ** GNU Lesser General Public License Usage
    00017 ** Alternatively, this file may be used under the terms of the GNU Lesser
    00018 ** General Public License version 2.1 as published by the Free Software
    00019 ** Foundation and appearing in the file LICENSE.LGPL included in the
    00020 ** packaging of this file.  Please review the following information to
    00021 ** ensure the GNU Lesser General Public License version 2.1 requirements
    00022 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
    00023 **
    00024 ** In addition, as a special exception, Nokia gives you certain additional
    00025 ** rights.  These rights are described in the Nokia Qt LGPL Exception
    00026 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this module.
    00027 **
    00028 ** GNU General Public License Usage
    00029 ** Alternatively, this file may be used under the terms of the GNU
    00030 ** General Public License version 3.0 as published by the Free Software
    00031 ** Foundation and appearing in the file LICENSE.GPL included in the
    00032 ** packaging of this file.  Please review the following information to
    00033 ** ensure the GNU General Public License version 3.0 requirements will be
    00034 ** met: http://www.gnu.org/copyleft/gpl.html.
    00035 **
    00036 ** If you have questions regarding the use of this file, please contact
    00037 ** Nokia at qt-info@nokia.com.
    00038 ** $QT_END_LICENSE$
    00039 **
    00040 ****************************************************************************/
    00041
    00042 #ifndef QGRAPHICSTRANSFORM_H
    00043 #define QGRAPHICSTRANSFORM_H
    00044
    00045 #include <QtCore/QObject>
    00046 #include <QtGui/QVector3D>
    00047 #include <QtGui/QTransform>
    00048 #include <QtGui/QMatrix4x4>
    00049
    00050 #ifndef QT_NO_GRAPHICSVIEW
    00051 QT_BEGIN_HEADER
    00052
    00053 QT_BEGIN_NAMESPACE
    00054
    00055 QT_MODULE(Gui)
    00056
    00057 class QGraphicsItem;
    00058 class QGraphicsTransformPrivate;
    00059
    00060 class Q_GUI_EXPORT QGraphicsTransform : public QObject
    00061 {
    00062     Q_OBJECT
    00063 public:
    00064     QGraphicsTransform(QObject *parent = 0);
    00065     ~QGraphicsTransform();
    00066
    00067     virtual void applyTo(QMatrix4x4 *matrix) const = 0;
    00068
    00069 protected Q_SLOTS:
    00070     void update();
    00071
    00072 protected:
    00073     QGraphicsTransform(QGraphicsTransformPrivate &p, QObject *parent);
    00074
    00075 private:
    00076     friend class QGraphicsItem;
    00077     friend class QGraphicsItemPrivate;
    00078     Q_DECLARE_PRIVATE(QGraphicsTransform)
    00079 };
    00080
    00081 class QGraphicsScalePrivate;
    00082
    00083 class Q_GUI_EXPORT QGraphicsScale : public QGraphicsTransform
    00084 {
    00085     Q_OBJECT
    00086
    00087     Q_PROPERTY(QVector3D origin READ origin WRITE setOrigin NOTIFY originChanged)
    00088     Q_PROPERTY(qreal xScale READ xScale WRITE setXScale NOTIFY xScaleChanged)
    00089     Q_PROPERTY(qreal yScale READ yScale WRITE setYScale NOTIFY yScaleChanged)
    00090     Q_PROPERTY(qreal zScale READ zScale WRITE setZScale NOTIFY zScaleChanged)
    00091 public:
    00092     QGraphicsScale(QObject *parent = 0);
    00093     ~QGraphicsScale();
    00094
    00095     QVector3D origin() const;
    00096     void setOrigin(const QVector3D &point);
    00097
    00098     qreal xScale() const;
    00099     void setXScale(qreal);
    00100
    00101     qreal yScale() const;
    00102     void setYScale(qreal);
    00103
    00104     qreal zScale() const;
    00105     void setZScale(qreal);
    00106
    00107     void applyTo(QMatrix4x4 *matrix) const;
    00108
    00109 Q_SIGNALS:
    00110     void originChanged();
    00111     void xScaleChanged();
    00112     void yScaleChanged();
    00113     void zScaleChanged();
    00114     void scaleChanged();
    00115
    00116 private:
    00117     Q_DECLARE_PRIVATE(QGraphicsScale)
    00118 };
    00119
    00120 class QGraphicsRotationPrivate;
    00121
    00122 class Q_GUI_EXPORT QGraphicsRotation : public QGraphicsTransform
    00123 {
    00124     Q_OBJECT
    00125
    00126     Q_PROPERTY(QVector3D origin READ origin WRITE setOrigin NOTIFY originChanged)
    00127     Q_PROPERTY(qreal angle READ angle WRITE setAngle NOTIFY angleChanged)
    00128     Q_PROPERTY(QVector3D axis READ axis WRITE setAxis NOTIFY axisChanged)
    00129 public:
    00130     QGraphicsRotation(QObject *parent = 0);
    00131     ~QGraphicsRotation();
    00132
    00133     QVector3D origin() const;
    00134     void setOrigin(const QVector3D &point);
    00135
    00136     qreal angle() const;
    00137     void setAngle(qreal);
    00138
    00139     QVector3D axis() const;
    00140     void setAxis(const QVector3D &axis);
    00141     void setAxis(Qt::Axis axis);
    00142
    00143     void applyTo(QMatrix4x4 *matrix) const;
    00144
    00145 Q_SIGNALS:
    00146     void originChanged();
    00147     void angleChanged();
    00148     void axisChanged();
    00149
    00150 private:
    00151     Q_DECLARE_PRIVATE(QGraphicsRotation)
    00152 };
    00153
    00154 QT_END_NAMESPACE
    00155
    00156 QT_END_HEADER
    00157 #endif //QT_NO_GRAPHICSVIEW
    00158
    00159 #endif // QFXTRANSFORM_H