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Diffstat (limited to 'kdeui/kiconviewsearchline.h')
-rw-r--r-- | kdeui/kiconviewsearchline.h | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/kdeui/kiconviewsearchline.h b/kdeui/kiconviewsearchline.h new file mode 100644 index 000000000..3eca6bd23 --- /dev/null +++ b/kdeui/kiconviewsearchline.h @@ -0,0 +1,179 @@ +/* + 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 */ |