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/*
This file is part of the KDE libraries
Copyright (c) 2004 Gustavo Sverzut Barbieri <gsbarbieri@users.sourceforge.net>
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 KICONVIEWSEARCHLINE_H
#define KICONVIEWSEARCHLINE_H
#include <klineedit.h>
#include <qvaluelist.h>
class QIconView;
class QIconViewItem;
/**
* This class makes it easy to add a search line for filtering the items in a
* iconview based on a simple text search.
*
* No changes to the application other than instantiating this class with an
* appropriate QIconView should be needed.
*
* @since 3.3
*/
class KDEUI_EXPORT KIconViewSearchLine : public KLineEdit
{
Q_OBJECT
public:
/**
* Constructs a KIconViewSearchLine with \a iconView being the QIconView to
* be filtered.
*
* If \a iconView is null then the widget will be disabled until a iconview
* is set with setIconView().
*/
KIconViewSearchLine( QWidget *parent = 0,
QIconView *iconView = 0,
const char *name = 0 );
/**
* Constructs a KIconViewSearchLine without any QIconView to filter. The
* QIconView object has to be set later with setIconView().
*/
KIconViewSearchLine( QWidget *parent, const char *name );
/**
* Destroys the KIconViewSearchLine.
*/
virtual ~KIconViewSearchLine();
/**
* Returns true if the search is case sensitive. This defaults to false.
*
* @see setCaseSensitive()
*/
bool caseSensitive() const;
/**
* Returns the iconview that is currently filtered by the search.
*
* @see setIconView()
*/
QIconView *iconView() const;
public slots:
/**
* Updates search to only make visible the items that match \a s. If
* \a s is null then the line edit's text will be used.
*/
virtual void updateSearch( const QString &s = QString::null );
/**
* Make the search case sensitive or case insensitive.
*
* @see caseSenstive()
*/
void setCaseSensitive( bool cs );
/**
* Sets the QIconView that is filtered by this search line. If \a lv is null
* then the widget will be disabled.
*
* @see iconView()
*/
void setIconView( QIconView *iv );
/**
* Clear line edit and empty hiddenItems, returning elements to iconView.
*/
void clear();
protected:
/**
* Returns true if \a item matches the search \a s. This will be evaluated
* based on the value of caseSensitive(). This can be overridden in
* subclasses to implement more complicated matching schemes.
*/
virtual bool itemMatches( const QIconViewItem *item,
const QString &s ) const;
/**
* Do initialization common to both constructors.
*/
void init( QIconView *iconView = 0 );
/**
* Hide item.
*/
void hideItem( QIconViewItem *item );
/**
* Show item.
*
* Just unhide it, doesn't necessary show it on screen, for that use
* iconView->ensureItemVisible()
*/
void showItem( QIconViewItem *item );
protected slots:
/**
* When keys are pressed a new search string is created and a timer is
* activated. The most recent search is activated when this timer runs out
* if another key has not yet been pressed.
*
* This method makes @param s the most recent search and starts the
* timer.
*
* Together with activateSearch() this makes it such that searches are not
* started until there is a short break in the users typing.
*
* @see activateSearch()
*/
void queueSearch( const QString &s );
/**
* When the timer started with queueSearch() expires this slot is called.
* If there has been another timer started then this slot does nothing.
* However if there are no other pending searches this starts the icon view
* search.
*
* @see queueSearch()
*/
void activateSearch();
private slots:
/**
* Take action need when iconView is deleted.
*/
void iconViewDeleted();
private:
class KIconViewSearchLinePrivate;
KIconViewSearchLinePrivate *d;
};
#endif /* KICONVIEWSEARCHLINE_H */
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