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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 QTGRAPHICSTREEVIEW_H
#define QTGRAPHICSTREEVIEW_H
#include "qtreemodelinterface.h"
#include <QtCore/qsize.h>
#include <QtCore/qstack.h>
#include <QtGui/qtransform.h>
#include <QtGui/qgraphicswidget.h>
#include <QtGui/qstyleoption.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
//QT_MODULE(Gui)
class QtGraphicsTreeView;
class QtGraphicsTreeViewPrivate;
class QtGraphicsTreeViewItemPrivate;
class QtTreeSelectionManager;
class QtTreeSelections;
class QtTreeController;
class QtGraphicsHeader;
class QPointF;
class QRegion;
class QPainter;
class QWidget;
class QtGraphicsTreeViewItem : public QGraphicsWidget
{
public:
QtGraphicsTreeViewItem(const QtTreeModelIterator &it, QtGraphicsTreeView *view);
~QtGraphicsTreeViewItem();
QtTreeModelIterator iterator() const;
void setIterator(const QtTreeModelIterator &it);
virtual QSizeF sizeHint(Qt::SizeHint which, const QSizeF &constraint = QSizeF()) const;
virtual QSizeF sizeHint(const QtTreeModelIterator &it, const QStyleOptionViewItemV4 *option, Qt::SizeHint which, const QSizeF &constraint = QSizeF()) const;
virtual QSizeF sizeHint(const QtTreeModelIterator &it, int column, const QStyleOptionViewItemV4 *option, Qt::SizeHint which, const QSizeF &constraint = QSizeF()) const;
virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
virtual void paintBranches(QPainter *painter, QStyleOptionViewItemV4 *option, const QStack<QtTreeModelIterator> &stack);
virtual void itemChanged(const QList<int> &roles = QList<int>());
virtual void initStyleOption(QStyleOptionViewItemV4 *option, int column) const;
virtual void initStyleOptionState(QStyleOptionViewItemV4 *option, const QtTreeModelIterator &it, int column) const;
void copyStyleOptionState(const QStyleOptionGraphicsItem *source, QStyleOptionViewItemV4 *dest);
QHash<int, QVariant> data(int column = 0, const QList<int> &roles = QList<int>()) const;
QtGraphicsTreeView *view() const;
protected:
QtGraphicsTreeViewItemPrivate *d_ptr;
private:
Q_DISABLE_COPY(QtGraphicsTreeViewItem)
Q_DECLARE_PRIVATE(QtGraphicsTreeViewItem)
};
class QtGraphicsTreeViewItemCreatorBase
{
public:
virtual ~QtGraphicsTreeViewItemCreatorBase();
virtual QGraphicsObject *create(const QtTreeModelIterator &it, QtGraphicsTreeView *view) = 0;
virtual QGraphicsObject *reassign(const QtTreeModelIterator &it, QGraphicsObject *item, QtGraphicsTreeView *view) = 0;
virtual void update(const QtTreeModelIterator &it, QGraphicsObject *item, const QList<int> &roles);
virtual void recycle(QGraphicsObject *item);
};
template <class T>
class QtGraphicsTreeViewItemCreator : public QtGraphicsTreeViewItemCreatorBase
{
public:
inline QGraphicsObject *create(const QtTreeModelIterator &it, QtGraphicsTreeView *view) { return new T(it, view); }
inline QGraphicsObject *reassign(const QtTreeModelIterator &it, QGraphicsObject *item, QtGraphicsTreeView *view)
{
Q_UNUSED(view);
static_cast<QtGraphicsTreeViewItem*>(item)->setIterator(it);
return item;
}
inline void update(const QtTreeModelIterator &it, QGraphicsObject *item, const QList<int> &roles)
{
Q_UNUSED(it);
static_cast<QtGraphicsTreeViewItem*>(item)->itemChanged(roles);
}
};
class Q_ITEMVIEWSNG_EXPORT QtGraphicsTreeView : public QGraphicsWidget
{
Q_OBJECT
Q_PROPERTY(QtTreeModelBase* model READ model WRITE setModel) // ###
Q_PROPERTY(int firstIndex READ firstIndex WRITE setFirstIndex)
Q_PROPERTY(qreal horizontalOffset READ horizontalOffset WRITE setHorizontalOffset)
Q_PROPERTY(qreal verticalOffset READ verticalOffset WRITE setVerticalOffset)
Q_PROPERTY(Qt::TextElideMode textElideMode READ textElideMode WRITE setTextElideMode)
public:
QtGraphicsTreeView(QGraphicsWidget *parent = 0, Qt::WindowFlags wFlags = 0);
virtual ~QtGraphicsTreeView();
QtTreeController *controller() const;
void setController(QtTreeController *controller);
QtTreeModelBase *model() const;
QtTreeSelectionManager *selectionManager() const;
QtGraphicsHeader *header() const;
void setHeader(QtGraphicsHeader *header);
void setTextElideMode(Qt::TextElideMode mode);
Qt::TextElideMode textElideMode() const;
int firstIndex() const;
int firstSection() const;
qreal horizontalOffset() const;
qreal verticalOffset() const;
int maximumFirstIndex(int *count = 0) const;
int maximumFirstSection() const;
qreal maximumHorizontalOffset() const;
qreal maximumVerticalOffset() const;
bool isItemExpanded(const QtTreeModelIterator &it) const;
QList<QtTreeModelIterator> expandedItems() const;
void nextItem(QtTreeModelIterator &it) const;
void previousItem(QtTreeModelIterator &it) const;
QRectF disclosureRect(const QRectF &rect) const; // ### FIXME: make virtual ?
QtGraphicsTreeViewItemCreatorBase *itemCreator() const;
void setItemCreator(QtGraphicsTreeViewItemCreatorBase *creator);
QGraphicsObject *itemForIterator(const QtTreeModelIterator &it) const; // ### FIXME: make virtual ?
virtual void doLayout();
virtual QtTreeModelIterator itemAt(const QPointF &position, int *index = 0, QRectF *rect = 0) const;
virtual int indexOf(const QtTreeModelIterator &it) const;
virtual void initStyleOption(QStyleOptionViewItemV4 *option) const;
public Q_SLOTS:
void setFirstIndex(int index);
void setHorizontalOffset(qreal offset);
void setVerticalOffset(qreal offset);
void setItemExpanded(QtTreeModelIterator &it, bool expanded = true);
void updateLayout();
Q_SIGNALS:
void firstIndexChanged(int index);
void horizontalOffsetChanged(qreal offset);
void verticalOffsetChanged(qreal offset);
void itemExpanded(QtTreeModelIterator &it, int count);
void itemCollapsed(QtTreeModelIterator &it, int count);
void layoutChanged();
protected:
QtGraphicsTreeView(QtGraphicsTreeViewPrivate &, QGraphicsWidget *parent = 0, Qt::WindowFlags wFlags = 0);
virtual bool event(QEvent *event);
virtual QVariant itemChange(GraphicsItemChange change, const QVariant &value);
void setModel(QtTreeModelBase *model);
void setSelectionManager(QtTreeSelectionManager *selections);
protected:
QtGraphicsTreeViewPrivate *d_ptr;
private:
friend class QtTreeController;
friend class QtGraphicsTreeViewItem;
Q_DECLARE_PRIVATE(QtGraphicsTreeView)
Q_DISABLE_COPY(QtGraphicsTreeView)
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_headerDestroyed())
Q_PRIVATE_SLOT(d_func(), void _q_itemsChanged(const QtTreeModelBase::iterator_base &it, int count, const QList<int> &roles))
Q_PRIVATE_SLOT(d_func(), void _q_itemsInserted(const QtTreeModelBase::iterator_base &it, int count))
Q_PRIVATE_SLOT(d_func(), void _q_itemsRemoved(const QtTreeModelBase::iterator_base &it, int count))
Q_PRIVATE_SLOT(d_func(), void _q_selectionsChanged(const QtTreeSelection &selection))
Q_PRIVATE_SLOT(d_func(), void _q_currentChanged(const QtTreeModelBase::iterator_base ¤t, const QtTreeModelBase::iterator_base &previous))
Q_PRIVATE_SLOT(d_func(), void _q_reset())
};
QT_END_NAMESPACE
QT_END_HEADER
#endif//QTGRAPHICSTREEVIEW_H
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