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/*
* radiobutton.h - radio button with focus widget and read-only options
* Program: kalarm
* Copyright © 2002,2003,2005,2006 by David Jarvie <software@astrojar.org.uk>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef RADIOBUTTON_H
#define RADIOBUTTON_H
#include <qradiobutton.h>
/**
* @short A QRadioButton with focus widget and read-only options.
*
* The RadioButton class is a QRadioButton with the ability to transfer focus to
* another widget when checked, and with a read-only option.
*
* Another widget may be specified as the focus widget for the radio button. Whenever
* the user clicks on the radio button so as to set its state to checked, focus is
* automatically transferred to the focus widget.
*
* The widget may be set as read-only. This has the same effect as disabling it, except
* that its appearance is unchanged.
*
* @author David Jarvie <software@astrojar.org.uk>
*/
class RadioButton : public QRadioButton
{
Q_OBJECT
public:
/** Constructor.
* @param parent The parent object of this widget.
* @param name The name of this widget.
*/
explicit RadioButton(QWidget* parent, const char* name = 0);
/** Constructor.
* @param text Text to display.
* @param parent The parent object of this widget.
* @param name The name of this widget.
*/
RadioButton(const QString& text, QWidget* parent, const char* name = 0);
/** Returns true if the widget is read only. */
bool isReadOnly() const { return mReadOnly; }
/** Sets whether the radio button is read-only for the user. If read-only,
* its state cannot be changed by the user.
* @param readOnly True to set the widget read-only, false to set it read-write.
*/
virtual void setReadOnly(bool readOnly);
/** Returns the widget which receives focus when the button is clicked. */
QWidget* focusWidget() const { return mFocusWidget; }
/** Specifies a widget to receive focus when the button is clicked.
* @param widget Widget to receive focus.
* @param enable If true, @p widget will be enabled before receiving focus. If
* false, the enabled state of @p widget will be left unchanged when
* the radio button is clicked.
*/
void setFocusWidget(QWidget* widget, bool enable = true);
protected:
virtual void mousePressEvent(QMouseEvent*);
virtual void mouseReleaseEvent(QMouseEvent*);
virtual void mouseMoveEvent(QMouseEvent*);
virtual void keyPressEvent(QKeyEvent*);
virtual void keyReleaseEvent(QKeyEvent*);
protected slots:
void slotClicked();
private:
QWidget::FocusPolicy mFocusPolicy; // default focus policy for the QRadioButton
QWidget* mFocusWidget; // widget to receive focus when button is clicked on
bool mFocusWidgetEnable; // enable focus widget before setting focus
bool mReadOnly; // value cannot be changed
};
#endif // RADIOBUTTON_H
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