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-
-/* This file is part of the KDE project
- Copyright (C) 2000 David Faure <faure@kde.org>
- 2000 Carsten Pfeiffer <pfeiffer@kde.org>
- 2001 Klaas Freitag <freitag@suse.de>
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public
- License version 2 as published by the Free Software Foundation.
-
- This library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public License
- along with this library; see the file COPYING.LIB. If not, write to
- the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA.
-*/
-
-#ifndef kfile_tree_branch_h
-#define kfile_tree_branch_h
-
-#include <tqdict.h>
-#include <tqlistview.h>
-
-#include <kfileitem.h>
-#include <kio/global.h>
-#include <kdirlister.h>
-#include <kio/job.h>
-#include <kfiletreeviewitem.h>
-
-class KURL;
-class KFileTreeView;
-
-
-/**
- * This is the branch class of the KFileTreeView, which represents one
- * branch in the treeview. Every branch has a root which is an url. The branch
- * lists the files under the root. Every branch uses its own dirlister and can
- * have its own filter etc.
- *
- * @short Branch object for KFileTreeView object.
- *
- */
-
-class TDEIO_EXPORT KFileTreeBranch : public KDirLister
-{
- Q_OBJECT
-public:
- /**
- * constructs a branch for KFileTreeView. Does not yet start to list it.
- * @param url start url of the branch.
- * @param name the name of the branch, which is displayed in the first column of the treeview.
- * @param pix is a pixmap to display as an icon of the branch.
- * @param showHidden flag to make hidden files visible or not.
- * @param branchRoot is the KFileTreeViewItem to use as the root of the
- * branch, with the default 0 meaning to let KFileTreeBranch create
- * it for you.
- */
- KFileTreeBranch( KFileTreeView*, const KURL& url, const TQString& name,
- const TQPixmap& pix, bool showHidden = false,
- KFileTreeViewItem *branchRoot = 0 );
-
- /**
- * @returns the root url of the branch.
- */
- KURL rootUrl() const { return( m_startURL ); }
-
- /**
- * sets a KFileTreeViewItem as root widget for the branch.
- * That must be created outside of the branch. All KFileTreeViewItems
- * the branch is allocating will become children of that object.
- * @param r the KFileTreeViewItem to become the root item.
- */
- virtual void setRoot( KFileTreeViewItem *r ){ m_root = r; };
-
- /**
- * @returns the root item.
- */
- KFileTreeViewItem *root( ) { return( m_root );}
-
- /**
- * @returns the name of the branch.
- */
- TQString name() const { return( m_name ); }
-
- /**
- * sets the name of the branch.
- */
- virtual void setName( const TQString n ) { m_name = n; };
-
- /*
- * returns the current root item pixmap set in the constructor. The root
- * item pixmap defaults to the icon for directories.
- * @see openPixmap()
- */
- const TQPixmap& pixmap(){ return(m_rootIcon); }
-
- /*
- * returns the current root item pixmap set by setOpenPixmap()
- * which is displayed if the branch is expanded.
- * The root item pixmap defaults to the icon for directories.
- * @see pixmap()
- * Note that it depends on KFileTreeView::showFolderOpenPximap weather
- * open pixmap are displayed or not.
- */
- const TQPixmap& openPixmap() { return(m_openRootIcon); }
-
- /**
- * @returns whether the items in the branch show their file extensions in the
- * tree or not. See setShowExtensions for more information.
- */
- bool showExtensions( ) const;
-
- /**
- * sets the root of the branch open or closed.
- */
- void setOpen( bool setopen = true )
- { if( root() ) root()->setOpen( setopen ); }
-
- /**
- * sets if children recursion is wanted or not. If this is switched off, the
- * child directories of a just opened directory are not listed internally.
- * That means that it can not be determined if the sub directories are
- * expandable or not. If this is switched off there will be no call to
- * setExpandable.
- * @param t set to true to switch on child recursion
- */
- void setChildRecurse( bool t=true );
-
- /**
- * @returns if child recursion is on or off.
- * @see setChildRecurse
- */
- bool childRecurse()
- { return m_recurseChildren; }
-
-public slots:
- /**
- * populates a branch. This method must be called after a branch was added
- * to a KFileTreeView using method addBranch.
- * @param url is the url of the root item where the branch starts.
- * @param currItem is the current parent.
- */
- virtual bool populate( const KURL &url, KFileTreeViewItem* currItem );
-
- /**
- * sets printing of the file extensions on or off. If you pass false to this
- * slot, all items of this branch will not show their file extensions in the
- * tree.
- * @param visible flags if the extensions should be visible or not.
- */
- virtual void setShowExtensions( bool visible = true );
-
- void setOpenPixmap( const TQPixmap& pix );
-
-protected:
- /**
- * allocates a KFileTreeViewItem for the branch
- * for new items.
- */
- virtual KFileTreeViewItem *createTreeViewItem( KFileTreeViewItem *parent,
- KFileItem *fileItem );
-
-public:
- /**
- * find the according KFileTreeViewItem by an url
- */
- virtual KFileTreeViewItem *findTVIByURL( const KURL& );
-
-signals:
- /**
- * emitted with the item of a directory which was finished to populate
- */
- void populateFinished( KFileTreeViewItem * );
-
- /**
- * emitted with a list of new or updated KFileTreeViewItem which were
- * found in a branch. Note that this signal is emitted very often and may slow
- * down the performance of the treeview !
- */
- void newTreeViewItems( KFileTreeBranch*, const KFileTreeViewItemList& );
-
- /**
- * emitted with the exact count of children for a directory.
- */
- void directoryChildCount( KFileTreeViewItem* item, int count );
-
-private slots:
- void slotRefreshItems( const KFileItemList& );
- void addItems( const KFileItemList& );
- void slCompleted( const KURL& );
- void slotCanceled( const KURL& );
- void slotListerStarted( const KURL& );
- void slotDeleteItem( KFileItem* );
- void slotDirlisterClear();
- void slotDirlisterClearURL( const KURL& url );
- void slotRedirect( const KURL& oldUrl, const KURL&newUrl );
-
-private:
- KFileTreeViewItem *parentKFTVItem( KFileItem *item );
- static void deleteChildrenOf( TQListViewItem *parent );
-
- KFileTreeViewItem *m_root;
- KURL m_startURL;
- TQString m_name;
- TQPixmap m_rootIcon;
- TQPixmap m_openRootIcon;
-
- /* this list holds the url's which children are opened. */
- KURL::List m_openChildrenURLs;
-
-
- /* The next two members are used for caching purposes in findTVIByURL. */
- KURL m_lastFoundURL;
- KFileTreeViewItem *m_lastFoundItem;
-
- bool m_recurseChildren :1;
- bool m_showExtensions :1;
-
-protected:
- virtual void virtual_hook( int id, void* data );
-private:
- class KFileTreeBranchPrivate;
- KFileTreeBranchPrivate *d;
-};
-
-
-/**
- * List of KFileTreeBranches
- */
-typedef TQPtrList<KFileTreeBranch> KFileTreeBranchList;
-
-/**
- * Iterator for KFileTreeBranchLists
- */
-typedef TQPtrListIterator<KFileTreeBranch> KFileTreeBranchIterator;
-
-#endif
-
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