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

# xform.h Example File
demos/affine/xform.h

     /****************************************************************************
     **
     ** Copyright (C) 2005-2008 Trolltech ASA. 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 versions 2.0 or 3.0 as published by the Free Software
    ** Foundation and appearing in the files LICENSE.GPL2 and LICENSE.GPL3
    ** included in the packaging of this file.  Alternatively you may (at
    ** your option) use any later version of the GNU General Public
    ** License if such license has been publicly approved by Trolltech ASA
    ** (or its successors, if any) and the KDE Free Qt Foundation. In
    ** addition, as a special exception, Trolltech gives you certain
    ** additional rights. These rights are described in the Trolltech GPL
    ** Exception version 1.2, which can be found at
    ** http://www.trolltech.com/products/qt/gplexception/ and in the file
    ** GPL_EXCEPTION.txt in this package.
    **
    ** Please review the following information to ensure GNU General
    ** Public Licensing requirements will be met:
    ** http://trolltech.com/products/qt/licenses/licensing/opensource/. If
    ** you are unsure which license is appropriate for your use, please
    ** review the following information:
    ** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
    ** or contact the sales department at sales@trolltech.com.
    **
    ** In addition, as a special exception, Trolltech, as the sole
    ** copyright holder for Qt Designer, grants users of the Qt/Eclipse
    ** Integration plug-in the right for the Qt/Eclipse Integration to
    ** link to functionality provided by Qt Designer and its related
    ** libraries.
    **
    ** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
    ** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
    ** A PARTICULAR PURPOSE. Trolltech reserves all rights not expressly
    ** granted herein.
     **
     ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
     ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
     **
     ****************************************************************************/

     #ifndef XFORM_H
     #define XFORM_H

     #include "arthurwidgets.h"

     #include <QBasicTimer>
     #include <QPolygonF>

     class HoverPoints;
     class QLineEdit;

     class XFormView : public ArthurFrame
     {
         Q_OBJECT

         Q_PROPERTY(bool animation READ animation WRITE setAnimation)
         Q_PROPERTY(double shear READ shear WRITE setShear)
         Q_PROPERTY(double rotation READ rotation WRITE setRotation)
         Q_PROPERTY(double scale READ scale WRITE setScale)

     public:
         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; }

         QLineEdit *textEditor;

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

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

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

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

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

     private:
         enum XFormType { VectorType, PixmapType, TextType };

         QPolygonF ctrlPoints;
         HoverPoints *pts;
         double m_rotation;
         double m_scale;
         double m_shear;
         XFormType type;
         QPixmap pixmap;
         QBasicTimer timer;
     };

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

     private:
         XFormView *view;
     };

     #endif // XFORM_H