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<td align="right" valign="top" width="230"><img src="images/trolltech-logo.png" align="right" width="203" height="32" border="0" /></td></tr></table><h1 align="center">displayshape.h Example File<br /><small><small>tools/qtdemo/displayshape.h</small></small></h1>

<pre>  /****************************************************************************

** This file is part of the documentation of the Qt Toolkit.

** This file may be distributed under the terms of the Q Public License

** as defined by Trolltech AS of Norway and appearing in the file

** LICENSE.QPL included in the packaging of this file.

** This file may be distributed and/or modified under the terms of the

** GNU General Public License version 2 as published by the Free Software

** Foundation and appearing in the file LICENSE.GPL included in the

** packaging of this file.

** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for

** information about Qt Commercial License Agreements.

** See http://www.trolltech.com/qpl/ for QPL licensing information.

** See http://www.trolltech.com/gpl/ for GPL licensing information.

** Contact info@trolltech.com if any conditions of this licensing are

** not clear to you.

** 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 DISPLAYSHAPE_H

#define DISPLAYSHAPE_H

#include <QBrush>

#include <QFont>

#include <QHash>

#include <QPainterPath>

#include <QPen>

#include <QPointF>

#include <QSizeF>

#include <QWidget>

class DisplayShape

{

public:

DisplayShape(const QPointF &position, const QSizeF &maxSize);

virtual ~DisplayShape() {};

virtual bool animate();

virtual bool contains(const QString &key) const;

virtual bool isInteractive() const;

virtual QVariant metaData(const QString &key) const;

virtual void paint(QPainter *painter) const;

virtual QPointF position() const;

virtual QPointF target() const;

virtual QRectF rect() const;

virtual QSizeF size() const;

virtual void removeMetaData(const QString &key);

virtual void setInteractive(bool enable);

virtual void setMetaData(const QString &key, const QVariant &value);

virtual void setPosition(const QPointF &point);

virtual void setTarget(const QPointF &point);

protected:

QHash<QString,QVariant> meta;

QImage image;

QPointF pos;

QPointF targetPos;

QSizeF maxSize;

bool interactive;

};

class PanelShape : public DisplayShape

{

public:

PanelShape(const QPainterPath &path, const QBrush &normal,

const QBrush &highlighted, const QPen &pen,

const QPointF &position, const QSizeF &maxSize);

bool animate();

void paint(QPainter *painter) const;

QRectF rect() const;

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private:

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QBrush brush;

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QBrush highlightedBrush;

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QBrush normalBrush;

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QPainterPath path;

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QPen pen;

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};

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class TitleShape : public DisplayShape

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{

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public:

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TitleShape(const QString &text, const QFont &font, const QPen &pen,

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const QPointF &position, const QSizeF &maxSize,

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Qt::Alignment alignment = Qt::AlignVCenter | Qt::AlignLeft);

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bool animate();

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void paint(QPainter *painter) const;

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QRectF rect() const;

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private:

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QFont font;

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QString text;

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QPen pen;

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QRect textRect;

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Qt::Alignment alignment;

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};

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class ImageShape : public DisplayShape

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{

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public:

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ImageShape(const QImage &original, const QPointF &position,

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const QSizeF &maxSize, int alpha = 0,

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Qt::Alignment alignment = Qt::AlignCenter);

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bool animate();

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void paint(QPainter *painter) const;

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QRectF rect() const;

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private:

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void redraw();

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int alpha;

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QImage source;

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QPointF offset;

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Qt::Alignment alignment;

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qreal scale;

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};

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class DocumentShape : public DisplayShape

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{

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public:

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DocumentShape(const QString &text, const QFont &font, const QPen &pen,

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const QPointF &position, const QSizeF &maxSize);

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~DocumentShape();

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bool animate();

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void paint(QPainter *painter) const;

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QRectF rect() const;

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private:

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qreal formatText();

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QFont font;

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QStringList paragraphs;

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QList<QTextLayout*> layouts;

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QPen pen;

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};

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#endif</pre>

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