/* This file is part of the KDE libraries
    Copyright (C) 1997 Nicolas Hadacek <hadacek@kde.org>
    Copyright (C) 2001,2001 Ellis Whitehead <ellis@kde.org>
    Copyright (C) 2006 Hamish Rodda <rodda@kde.org>
    Copyright (C) 2007 Roberto Raggi <roberto@kdevelop.org>
    Copyright (C) 2007 Andreas Hartmetz <ahartmetz@gmail.com>
    Copyright (C) 2008 Michael Jansen <kde@michael-jansen.biz>

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.

    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 KSHORTCUTSDIALOG_H
#define KSHORTCUTSDIALOG_H

#include <kdialog.h>

#include "kshortcutseditor.h"

/**
 * @short Dialog for configuration of KActionCollection and KGlobalAccel.
 *
 * The KShortcutsDialog class is used for configuring dictionaries of key/action
 * associations for KActionCollection and KGlobalAccel. It uses the KShortcutsEditor widget
 * and offers buttons to set all keys to defaults and invoke on-line help.
 *
 * Several static methods are supplied which provide the most convenient interface
 * to the dialog. The most common and most encouraged use is with KActionCollection.
 *
 * \code
 * KShortcutsDialog::configure( actionCollection() );
 * \endcode
 *
 * @since 4.3
 * By default this dialog is modal. If you don't want that, setModal(false) and then the non-static
 * configure() will show the dialog. If you want to do anything extra when the dialog is done,
 * connect to okClicked() and/or cancelClicked(). However, if your extra stuff depends on the
 * changed settings already being saved, connect to saved() instead to be safe; if you connect to
 * okClicked() your function might be called before the save happens.
 *
 * example:
 * \code
 * KShortcutsDialog dlg;
 * dlg.addCollection(myActions);
 * dlg.setModal(false);
 * connect(&dlg, SIGNAL(saved()), this, SLOT(doExtraStuff()));
 * dlg.configure();
 * \endcode
 *
 * \image html kshortcutsdialog.png "KDE Shortcuts Dialog"
 *
 * @author Nicolas Hadacek <hadacek@via.ecp.fr>
 * @author Hamish Rodda <rodda@kde.org> (KDE 4 porting)
 * @author Michael Jansen <kde@michael-jansen.biz>
 */
class KDEUI_EXPORT KShortcutsDialog : public KDialog
{
	Q_OBJECT

public:
	/**
	 * Constructs a KShortcutsDialog as a child of @p parent.
	 * Set @p allowLetterShortcuts to false if unmodified alphanumeric
	 * keys ('A', '1', etc.) are not permissible shortcuts.
	 */
	explicit KShortcutsDialog(KShortcutsEditor::ActionTypes types = KShortcutsEditor::AllActions,
                        KShortcutsEditor::LetterShortcuts allowLetterShortcuts = KShortcutsEditor::LetterShortcutsAllowed,
                        QWidget *parent = 0);

	/**
	 * Destructor. Deletes all resources used by a KShortcutsDialog object.
	 */
	virtual ~KShortcutsDialog();

	/**
	 * Add all actions of the collection to the ones displayed and configured
	 * by the dialog.
	 *
	 * @param title the title associated with the collection (if null, the
	 * KAboutData::progName() of the collection's componentData is used)
	 */
	void addCollection(KActionCollection *, const QString &title = QString());

	/**
	 * @return the list of action collections that are available for configuration in the dialog.
	 */
	QList<KActionCollection*> actionCollections() const;

	/**
	 * Run the dialog and call writeSettings() on the action collections
	 * that were added if @p bSaveSettings is true.
	 */
	bool configure(bool saveSettings = true);

	/** @see QWidget::sizeHint() */
	virtual QSize sizeHint() const;

	/**
	 * Pops up a modal dialog for configuring key settings. The new
	 * shortcut settings will become active if the user presses OK.
	 *
	 * @param collection the KActionCollection to configure
	 * @param allowLetterShortcuts set to KShortcutsEditor::LetterShortcutsDisallowed if unmodified alphanumeric
	 *  keys ('A', '1', etc.) are not permissible shortcuts.
	 * @param parent the parent widget to attach to
	 * @param bSaveSettings if true, the settings will also be saved back
	 * by calling writeSettings() on the action collections that were added.
	 *
	 * @return Accept if the dialog was closed with OK, Reject otherwise.
	 */
	static int configure( KActionCollection *collection, KShortcutsEditor::LetterShortcuts allowLetterShortcuts =
                          KShortcutsEditor::LetterShortcutsAllowed, QWidget* parent = 0, bool bSaveSettings = true);

Q_SIGNALS:
        /**
         * emitted after ok is clicked and settings are saved
         */
        void saved();

private:
	Q_PRIVATE_SLOT(d, void changeShortcutScheme(const QString &))
	Q_PRIVATE_SLOT(d, void save())
	Q_PRIVATE_SLOT(d, void undoChanges())

	class KShortcutsDialogPrivate;
	friend class KShortcutsDialogPrivate;
	class KShortcutsDialogPrivate *const d;

	Q_DISABLE_COPY(KShortcutsDialog)
};

#endif // KSHORTCUTSDIALOG_H

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