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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the QtDeclarative module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QFXLAYOUTS_H
#define QFXLAYOUTS_H
#include <QtCore/QObject>
#include <QtCore/QString>
#include <QtDeclarative/qfxitem.h>
#include <QtDeclarative/qmlstate.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Declarative)
class QFxBasePositionerPrivate;
class Q_DECLARATIVE_EXPORT QFxBasePositioner : public QFxItem
{
Q_OBJECT
Q_PROPERTY(int spacing READ spacing WRITE setSpacing)
Q_PROPERTY(QmlTransition *move READ move WRITE setMove)
Q_PROPERTY(QmlTransition *add READ add WRITE setAdd)
Q_PROPERTY(QmlTransition *remove READ remove WRITE setRemove)
public:
enum AutoUpdateType { None = 0x0, Horizontal = 0x1, Vertical = 0x2, Both = 0x3 };
QFxBasePositioner(AutoUpdateType, QFxItem *parent);
int spacing() const;
void setSpacing(int);
QmlTransition *move() const;
void setMove(QmlTransition *);
QmlTransition *add() const;
void setAdd(QmlTransition *);
QmlTransition *remove() const;
void setRemove(QmlTransition *);
protected:
virtual void componentComplete();
virtual QVariant itemChange(GraphicsItemChange, const QVariant &);
virtual bool event(QEvent *);
QSet<QFxItem *>* newItems();
QSet<QFxItem *>* leavingItems();
QSet<QFxItem *>* items();
void applyAdd(const QList<QPair<QString, QVariant> >& changes, QFxItem* target);
void applyMove(const QList<QPair<QString, QVariant> >& changes, QFxItem* target);
void applyRemove(const QList<QPair<QString, QVariant> >& changes, QFxItem* target);
void finishApplyTransitions();
Q_SIGNALS:
void layoutItemChanged();
protected Q_SLOTS:
virtual void doPositioning()=0;
private Q_SLOTS:
void prePositioning();
protected:
QFxBasePositioner(QFxBasePositionerPrivate &dd, AutoUpdateType at, QFxItem *parent);
void setMovingItem(QFxItem *);
private:
void applyTransition(const QList<QPair<QString, QVariant> >& changes, QFxItem* target,
QmlStateOperation::ActionList &actions);
Q_DISABLE_COPY(QFxBasePositioner)
Q_DECLARE_PRIVATE_D(QGraphicsItem::d_ptr, QFxBasePositioner)
};
class Q_DECLARATIVE_EXPORT QFxVerticalPositioner : public QFxBasePositioner
{
Q_OBJECT
public:
QFxVerticalPositioner(QFxItem *parent=0);
protected Q_SLOTS:
virtual void doPositioning();
private:
Q_DISABLE_COPY(QFxVerticalPositioner)
};
class Q_DECLARATIVE_EXPORT QFxHorizontalPositioner: public QFxBasePositioner
{
Q_OBJECT
public:
QFxHorizontalPositioner(QFxItem *parent=0);
protected Q_SLOTS:
virtual void doPositioning();
private:
Q_DISABLE_COPY(QFxHorizontalPositioner)
};
class Q_DECLARATIVE_EXPORT QFxGridPositioner : public QFxBasePositioner
{
Q_OBJECT
Q_PROPERTY(int rows READ rows WRITE setRows)
Q_PROPERTY(int columns READ columns WRITE setcolumns)
public:
QFxGridPositioner(QFxItem *parent=0);
int rows() const {return _rows;}
void setRows(const int rows){_rows = rows;}
int columns() const {return _columns;}
void setcolumns(const int columns){_columns = columns;}
protected Q_SLOTS:
virtual void doPositioning();
private:
int _rows;
int _columns;
Q_DISABLE_COPY(QFxGridPositioner)
};
QT_END_NAMESPACE
QML_DECLARE_TYPE(QFxVerticalPositioner)
QML_DECLARE_TYPE(QFxHorizontalPositioner)
QML_DECLARE_TYPE(QFxGridPositioner)
QT_END_HEADER
#endif
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