util/demos/deform/pathdeform.h
author eckhart.koppen@nokia.com
Wed, 31 Mar 2010 11:06:36 +0300
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/****************************************************************************
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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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**
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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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#ifndef PATHDEFORM_H
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#define PATHDEFORM_H
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#include "arthurwidgets.h"
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#include <QPainterPath>
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#include <QBasicTimer>
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#include <QDateTime>
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class PathDeformRenderer : public ArthurFrame
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{
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    Q_OBJECT
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    Q_PROPERTY(bool animated READ animated WRITE setAnimated)
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    Q_PROPERTY(int radius READ radius WRITE setRadius)
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    Q_PROPERTY(int fontSize READ fontSize WRITE setFontSize)
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    Q_PROPERTY(int intensity READ intensity WRITE setIntensity)
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    Q_PROPERTY(QString text READ text WRITE setText)
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public:
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    PathDeformRenderer(QWidget *widget, bool smallScreen = false);
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    void paint(QPainter *painter);
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    void mousePressEvent(QMouseEvent *e);
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    void mouseReleaseEvent(QMouseEvent *e);
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    void mouseMoveEvent(QMouseEvent *e);
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    void timerEvent(QTimerEvent *e);
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    QSize sizeHint() const { return QSize(600, 500); }
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    bool animated() const { return m_animated; }
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    int radius() const { return int(m_radius); }
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    int fontSize() const { return m_fontSize; }
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    int intensity() const { return int(m_intensity); }
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    QString text() const { return m_text; }
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public slots:
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    void setRadius(int radius);
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    void setFontSize(int fontSize) { m_fontSize = fontSize; setText(m_text); }
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    void setText(const QString &text);
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    void setIntensity(int intensity);
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    void setAnimated(bool animated);
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signals:
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    void clicked();
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//     void frameRate(double fps);
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private:
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    void generateLensPixmap();
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    QPainterPath lensDeform(const QPainterPath &source, const QPointF &offset);
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    QBasicTimer m_repaintTimer;
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//     QBasicTimer m_fpsTimer;
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//     int m_fpsCounter;
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    QTime m_repaintTracker;
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    QVector<QPainterPath> m_paths;
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    QVector<QPointF> m_advances;
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    QRectF m_pathBounds;
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    QString m_text;
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    QPixmap m_lens_pixmap;
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    QImage m_lens_image;
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    int m_fontSize;
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    bool m_animated;
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    qreal m_intensity;
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    qreal m_radius;
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    QPointF m_pos;
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    QPointF m_offset;
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    QPointF m_direction;
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    QPointF m_mousePress;
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    bool    m_mouseDrag;
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    bool    m_smallScreen;
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};
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class PathDeformControls : public QWidget
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{
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    Q_OBJECT
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public:
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    PathDeformControls(QWidget *parent, PathDeformRenderer* renderer, bool smallScreen);
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signals:
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    void okPressed();
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    void quitPressed();
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private:
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    PathDeformRenderer* m_renderer;
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    void layoutForDesktop();
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    void layoutForSmallScreen();
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private slots:
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    void emitQuitSignal();
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    void emitOkSignal();
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};
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class PathDeformWidget : public QWidget
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{
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    Q_OBJECT
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public:
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    PathDeformWidget(QWidget *parent, bool smallScreen);
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    void setStyle ( QStyle * style );
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private:
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    PathDeformRenderer *m_renderer;
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    PathDeformControls *m_controls;
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private slots:
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    void showControls();
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    void hideControls();
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};
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#endif // PATHDEFORM_H