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/****************************************************************************
**
** Copyright (C) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the Itemviews NG project on Trolltech Labs.
**
** This file may be used under the terms of the GNU General Public
** License version 2.0 or 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 GNU
** General Public Licensing requirements will be met:
** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
** 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.
**
** 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 QTGRAPHICSLISTVIEW_H
#define QTGRAPHICSLISTVIEW_H
#include "qitemviewsglobal.h"
#include <QtGui/qgraphicswidget.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
//QT_MODULE(Gui)
class QSizeF;
class QPointF;
class QtListController;
class QtListModelInterface;
class QtListSelectionManager;
class QtListSelectionChange;
class QStyleOptionViewItemV4;
class QtGraphicsListViewItemPrivate;
class QtGraphicsListViewPrivate;
class QtGraphicsListView;
class Q_ITEMVIEWSNG_EXPORT QtGraphicsListViewItem : public QGraphicsWidget
{
Q_OBJECT
public:
QtGraphicsListViewItem(int index, QtGraphicsListView *view);
virtual ~QtGraphicsListViewItem();
int index() const;
void setIndex(int index);
QRectF boundingRect() const;
virtual QSizeF sizeHint(Qt::SizeHint which = Qt::PreferredSize, const QSizeF &constraint = QSizeF()) const;
virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
virtual void itemChanged(const QList<int> &roles = QList<int>());
virtual void initStyleOption(QStyleOptionViewItemV4 *option) const;
QHash<int, QVariant> data(const QList<int> &roles = QList<int>()) const;
QtGraphicsListView *view() const;
protected:
QtGraphicsListViewItemPrivate *d_ptr;
private:
Q_DISABLE_COPY(QtGraphicsListViewItem)
Q_DECLARE_PRIVATE(QtGraphicsListViewItem)
};
class Q_ITEMVIEWSNG_EXPORT QtGraphicsListViewItemCreatorBase
{
public:
virtual ~QtGraphicsListViewItemCreatorBase();
virtual QGraphicsObject *create(int index, QtGraphicsListView *view) = 0;
virtual QGraphicsObject *reassign(int index, QGraphicsObject *item, QtGraphicsListView *view) = 0;
virtual void update(int index, QGraphicsObject *item, const QList<int> &roles);
virtual void recycle(QGraphicsObject *item);
};
template <class T>
class QtGraphicsListViewItemCreator : public QtGraphicsListViewItemCreatorBase
{
public:
~QtGraphicsListViewItemCreator();
QGraphicsObject *create(int index, QtGraphicsListView *view);
QGraphicsObject *reassign(int index, QGraphicsObject *item, QtGraphicsListView *view);
void update(int index, QGraphicsObject *item, const QList<int> &roles);
};
template <class T>
QtGraphicsListViewItemCreator<T>::~QtGraphicsListViewItemCreator()
{}
template <class T>
inline QGraphicsObject *QtGraphicsListViewItemCreator<T>::create(int index, QtGraphicsListView *view)
{ return new T(index, view); }
template <class T>
inline QGraphicsObject *QtGraphicsListViewItemCreator<T>::reassign(int index, QGraphicsObject *item, QtGraphicsListView *view)
{
Q_UNUSED(view);
static_cast<T*>(item)->setIndex(index);
return item;
}
template <class T>
inline void QtGraphicsListViewItemCreator<T>::update(int index, QGraphicsObject *item, const QList<int> &roles)
{
Q_UNUSED(index);
static_cast<T*>(item)->itemChanged(roles);
}
class Q_ITEMVIEWSNG_EXPORT QtGraphicsListView : public QGraphicsWidget
{
Q_OBJECT
Q_PROPERTY(Qt::Orientation orientation READ orientation WRITE setOrientation NOTIFY orientationChanged)
Q_PROPERTY(Qt::TextElideMode textElideMode READ textElideMode WRITE setTextElideMode)
Q_PROPERTY(int firstIndex READ firstIndex WRITE setFirstIndex NOTIFY firstIndexChanged)
Q_PROPERTY(qreal offset READ offset WRITE setOffset NOTIFY offsetChanged)
Q_PROPERTY(QGraphicsObject* highlight READ highlight WRITE setHighlight)
public:
QtGraphicsListView(Qt::Orientation orientation = Qt::Vertical, QGraphicsWidget *parent = 0, Qt::WindowFlags wFlags = 0);
virtual ~QtGraphicsListView();
QtListController *controller() const;
QtListModelInterface *model() const;
QtListSelectionManager *selectionManager() const;
Qt::Orientation orientation() const;
void setOrientation(Qt::Orientation orientation);
Qt::TextElideMode textElideMode() const;
void setTextElideMode(Qt::TextElideMode mode);
virtual int itemAt(const QPointF &position) const;
virtual QRectF itemGeometry(int index) const;
virtual void doLayout();
int firstIndex() const;
qreal offset() const;
QGraphicsObject *highlight() const;
void setHighlight(QGraphicsObject *highlight);
virtual int maximumFirstIndex() const;
virtual qreal maximumOffset() const;
virtual void initStyleOption(QStyleOptionViewItemV4 *option) const;
QtGraphicsListViewItemCreatorBase *itemCreator() const;
void setItemCreator(QtGraphicsListViewItemCreatorBase *creator);
QGraphicsObject *itemForIndex(int index) const;
qreal offsetToEnsureIndexIsVisible(int index) const;
int firstIndexToEnsureIndexIsVisible(int index) const;
public Q_SLOTS:
void setFirstIndex(int index);
void setOffset(qreal offset);
void updateLayout();
Q_SIGNALS:
void orientationChanged(Qt::Orientation orientation);
void firstIndexChanged(int index);
void offsetChanged(qreal offset);
protected:
QtGraphicsListView(QtGraphicsListViewPrivate &, Qt::Orientation orientation, QGraphicsWidget *parent, Qt::WindowFlags wFlags = 0);
// ### making them virtual allows the user to hook up to any signals they need
virtual void setController(QtListController *control);
virtual void setModel(QtListModelInterface *model);
virtual void setSelectionManager(QtListSelectionManager *selectionManager);
virtual bool event(QEvent *event);
virtual QVariant itemChange(GraphicsItemChange change, const QVariant &value);
QtGraphicsListViewPrivate *d_ptr;
private:
friend class QtPrinterListView;
friend class QtListController;
friend class QtGraphicsListViewItem;
Q_DECLARE_PRIVATE(QtGraphicsListView)
Q_DISABLE_COPY(QtGraphicsListView)
Q_PRIVATE_SLOT(d_func(), void _q_controllerDestroyed())
Q_PRIVATE_SLOT(d_func(), void _q_modelDestroyed())
Q_PRIVATE_SLOT(d_func(), void _q_selectionsDestroyed())
Q_PRIVATE_SLOT(d_func(), void _q_itemsChanged(int index, int count, const QList<int> &roles))
Q_PRIVATE_SLOT(d_func(), void _q_itemsInserted(int index, int count))
Q_PRIVATE_SLOT(d_func(), void _q_itemsRemoved(int index, int count))
Q_PRIVATE_SLOT(d_func(), void _q_selectionsChanged(const QtListSelectionChange &change))
Q_PRIVATE_SLOT(d_func(), void _q_currentChanged(int current, int previous))
};
QT_END_NAMESPACE
QT_END_HEADER
#endif//QTGRAPHICSLISTVIEW_H
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