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/*
* label.h - label with radiobutton buddy option
* Program: kalarm
* Copyright © 2004-2006 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 LABEL_H
#define LABEL_H
#include <qlabel.h>
class QRadioButton;
class LabelFocusWidget;
/**
* @short A QLabel with option for a buddy radio button.
*
* The Label class provides a text display, with special behaviour when a radio
* button is set as a buddy.
*
* The Label object in effect acts as if it were part of the buddy radio button,
* in that when the label's accelerator key is pressed, the radio button receives
* focus and is switched on. When a non-radio button is specified as a buddy, the
* behaviour is the same as for QLabel.
*
* @author David Jarvie <software@astrojar.org.uk>
*/
class Label : public QLabel
{
Q_OBJECT
friend class LabelFocusWidget;
public:
/** Constructs an empty label.
* @param parent The parent object of this widget.
* @param name The name of this widget.
* @param f Flags. See QWidget constructor for details.
*/
explicit Label(QWidget* parent, const char* name = 0, WFlags f = 0);
/** Constructs a label that displays @p text.
* @param text Text string to display.
* @param parent The parent object of this widget.
* @param name The name of this widget.
* @param f Flags. See QWidget constructor for details.
*/
Label(const QString& text, QWidget* parent, const char* name = 0, WFlags f = 0);
/** Constructs a label, with a buddy widget, that displays @p text.
* @param buddy Buddy widget which receives the keyboard focus when the
* label's accelerator key is pressed. If @p buddy is a radio
* button, @p buddy is in addition selected when the
* accelerator key is pressed.
* @param text Text string to display.
* @param parent The parent object of this widget.
* @param name The name of this widget.
* @param f Flags. See QWidget constructor for details.
*/
Label(QWidget* buddy, const QString& text, QWidget* parent, const char* name = 0, WFlags f = 0);
/** Sets the label's buddy widget which receives the keyboard focus when the
* label's accelerator key is pressed. If @p buddy is a radio button,
* @p buddy is in addition selected when the accelerator key is pressed.
*/
virtual void setBuddy(QWidget* buddy);
protected:
virtual void drawContents(QPainter* p) { QLabel::drawContents(p); }
private slots:
void buddyDead();
private:
void activated();
QRadioButton* mRadioButton; // buddy widget if it's a radio button, else 0
LabelFocusWidget* mFocusWidget;
};
// Private class for use by Label
class LabelFocusWidget : public QWidget
{
Q_OBJECT
public:
LabelFocusWidget(QWidget* parent, const char* name = 0);
protected:
virtual void focusInEvent(QFocusEvent*);
};
#endif // LABEL_H
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