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93 lines
3.3 KiB
C++
93 lines
3.3 KiB
C++
/*
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* buttongroup.h - QButtonGroup with an extra signal, and button IDs
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* Program: kalarm
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* Copyright © 2002,2004,2005,2008 by David Jarvie <djarvie@kde.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef BUTTONGROUP_H
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#define BUTTONGROUP_H
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#include <QButtonGroup>
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#include <QMap>
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#include <QAbstractButton>
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/**
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* @short A QButtonGroup with signal on new selection, and button IDs.
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*
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* The ButtonGroup class provides an enhanced version of the QButtonGroup class.
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*
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* It emits an additional signal, buttonSet(QAbstractButton*), whenever any of its
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* buttons changes state, for whatever reason, including programmatic control. (The
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* QButtonGroup class only emits signals when buttons are clicked on by the user.)
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*
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* It allows buttons to have associated ID numbers, which can be used to access the
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* buttons.
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*
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* @author David Jarvie <djarvie@kde.org>
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*/
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class ButtonGroup : public QButtonGroup
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{
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Q_OBJECT
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public:
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/** Constructor.
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* @param parent The parent object of this widget
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*/
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explicit ButtonGroup(QObject* parent);
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/** Adds a button to the group.
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* The button is not given an ID.
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* This overrides the addButton() method of QButtonGroup.
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* @param button The button to insert
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*/
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void addButton(QAbstractButton* button);
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/** Adds a button with a specified ID to the group.
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* @param button The button to insert
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* @param id Button ID
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*/
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void addButton(QAbstractButton* button, int id);
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/** Returns the identifier of the specified button.
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* @return ID, or -1 if the button was not found
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*/
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int id(QAbstractButton* button) const;
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/** Returns the button with the specified identifier @p id.
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* @return button, or 0 if the button was not found
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*/
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QAbstractButton* find(int id) const;
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/** Returns the id of the selected button.
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* @return button if exactly one is selected, or -1 otherwise
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*/
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int selectedId() const;
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/** Checks the button with the specified ID.
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* @param id Button ID
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*/
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void setButton(int id);
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signals:
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/** Signal emitted whenever whenever any button in the group changes state,
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* for whatever reason.
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* @param button The button which is now selected
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*/
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void buttonSet(QAbstractButton* button);
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private slots:
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void slotButtonToggled(bool);
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private:
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QMap<int, QAbstractButton*> mIds;
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};
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#endif // BUTTONGROUP_H
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// vim: et sw=4:
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