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//-*-C++-*-
/*
**************************************************************************
description
--------------------
copyright : (C) 2000-2003 by Andreas Zehender
email : zehender@kde.org
**************************************************************************
**************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
**************************************************************************/
#ifndef PMTREEVIEW_H
#define PMTREEVIEW_H
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <qlistview.h>
#include "pmobject.h"
#include "pmviewbase.h"
#include "pmviewfactory.h"
class PMTreeViewItem;
class PMPart;
/**
* Wrapper class for the treeview/dock widget
*/
class PMTreeViewWidget : public PMViewBase
{
public:
/**
* Default constructor
*/
PMTreeViewWidget( PMPart* pare, QWidget* parent, const char* name = 0 );
/** */
virtual QString viewType( ) const { return QString( "treeview" ); }
/** */
virtual QString description( ) const;
};
/**
* Widget that displays the scene as tree view
*/
class PMTreeView : public QListView
{
Q_OBJECT
friend class PMTreeViewItem;
public:
/**
* Creates a PMTreeView with parent and name that displays the
* document doc
*/
PMTreeView( PMPart* part, QWidget* parent = 0, const char* name = 0 );
/**
* Deletes the PMTreeView
*/
~PMTreeView( );
/**
* Returns true PMTreeViewItem::setSelected should be accepted
*/
bool acceptSelect( ) const { return m_acceptSelect; }
/**
* Returns the connected part
*/
PMPart* part( ) const { return m_pPart; }
public slots:
/**
* Called when an object is changed.
* @see PMPart::objectChanged( ) */
void slotObjectChanged( PMObject* obj, const int mode, QObject* sender );
/**
* Refreshes the whole csg tree
*/
void slotRefresh( );
/**
* Clears all data
*/
void slotClear( );
signals:
/**
* Emitted, when an object is selected or deselected
*/
void objectChanged( PMObject* obj, const int mode, QObject* sender );
/**
* Emitted in the destructor
*/
void destroyed( PMTreeView* v );
protected:
void contentsMousePressEvent( QMouseEvent * e );
void contentsMouseMoveEvent( QMouseEvent * e );
void itemSelected( PMTreeViewItem* item, bool selected );
void viewportMousePressEvent( QMouseEvent * e );
void viewportMouseReleaseEvent( QMouseEvent* e );
void viewportMouseMoveEvent( QMouseEvent* e );
void viewportDragMoveEvent( QDragMoveEvent *e );
void viewportDragEnterEvent( QDragEnterEvent *e );
void viewportDragLeaveEvent( QDragLeaveEvent* e );
void viewportDropEvent( QDropEvent* e );
void focusOutEvent( QFocusEvent* e );
void focusInEvent( QFocusEvent* e );
void keyPressEvent( QKeyEvent* e );
private:
/**
* Adds child items of item to the tree view
*/
void addChildItems( PMTreeViewItem* item );
/**
* Returns the ListViewItem connected with the PMObject obj
*/
PMTreeViewItem* findObject( const PMObject* obj );
/**
* Selects the item. Expands the tree if necessary
*/
void selectItem( QListViewItem* item );
/**
* Returns true if the drop target is a tree view for the same part
*/
bool targetDisplaysPart( QWidget* target );
/**
* the displayed document
*/
PMPart* m_pPart;
/**
* the selected items
*/
// QPtrList<PMTreeViewItem> m_selectedItems;
PMTreeViewItem* m_pLastSelected;
bool m_itemSelected;
bool m_itemDeselected;
bool m_selectionCleared;
bool m_event;
bool m_acceptSelect;
bool m_selectOnReleaseEvent;
PMTreeViewItem* m_pDragOverItem;
// QStringList m_lstDropFormats;
// for drag and drop, copied from KonqBaseListViewWidget
bool m_pressed;
QPoint m_pressedPos;
PMTreeViewItem* m_pressedItem;
};
/**
* Factory class for the tree view
*/
class PMTreeViewFactory : public PMViewTypeFactory
{
public:
PMTreeViewFactory( ) { }
virtual QString viewType( ) const { return QString( "treeview" ); }
virtual QString description( ) const;
virtual QString iconName( ) const { return QString( "pmtreeview" ); }
virtual PMViewBase* newInstance( QWidget* parent, PMPart* part ) const
{
return new PMTreeViewWidget( part, parent );
}
};
#endif
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