/**************************************************************************** ** ** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). ** Contact: http://www.qt-project.org/legal ** ** This file is part of the Qt3Support module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and Digia. For licensing terms and ** conditions see http://qt.digia.com/licensing. For further information ** use the contact form at http://qt.digia.com/contact-us. ** ** GNU Lesser General Public License Usage ** Alternatively, this file may be used under the terms of the GNU Lesser ** General Public License version 2.1 as published by the Free Software ** Foundation and appearing in the file LICENSE.LGPL included in the ** packaging of this file. Please review the following information to ** ensure the GNU Lesser General Public License version 2.1 requirements ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. ** ** In addition, as a special exception, Digia gives you certain additional ** rights. These rights are described in the Digia Qt LGPL Exception ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU ** General Public License version 3.0 as published by the Free Software ** Foundation and appearing in the file LICENSE.GPL included in the ** packaging of this file. Please review the following information to ** ensure the GNU General Public License version 3.0 requirements will be ** met: http://www.gnu.org/copyleft/gpl.html. ** ** ** $QT_END_LICENSE$ ** ****************************************************************************/ #include "q3button.h" #include "qpainter.h" QT_BEGIN_NAMESPACE /*! \class Q3Button \brief The Q3Button class is a compatibility base class of button widgets \compat \bold{In new code, use QAbstractButton.} To subclass Q3Button, you must reimplement at least drawButton() (to draw the button's outline) and drawButtonLabel() (to draw its text or pixmap). It is generally advisable to reimplement sizeHint() as well, and sometimes hitButton() (to determine whether a button press is within the button). */ /*! Constructs a standard button called \a name with parent \a parent, using the widget flags \a f. */ Q3Button::Q3Button( QWidget *parent, const char *name, Qt::WindowFlags f ) : QAbstractButton( parent, name, f ) { } /*! Destroys the button. */ Q3Button::~Q3Button() { } /*! \fn void Q3Button::paintEvent( QPaintEvent *event) Handles paint events, received in \a event, for buttons. Small and typically complex buttons are painted double-buffered to reduce flicker. The actually drawing is done in the virtual functions drawButton() and drawButtonLabel(). \sa drawButton(), drawButtonLabel() */ void Q3Button::paintEvent( QPaintEvent *) { QPainter p(this); drawButton( &p ); } /*! \fn void Q3Button::drawButton( QPainter *painter) Draws the button on the given \a painter. The default implementation does nothing. This virtual function is reimplemented by subclasses to draw real buttons. At some point, these reimplementations should call drawButtonLabel(). \sa drawButtonLabel(), paintEvent() */ void Q3Button::drawButton( QPainter * ) { } /*! \fn void Q3Button::drawButtonLabel( QPainter *painter ) Draws the button text or pixmap on the given \a painter. This virtual function is reimplemented by subclasses to draw real buttons. It is invoked by drawButton(). \sa drawButton(), paintEvent() */ void Q3Button::drawButtonLabel( QPainter * ) { } QT_END_NAMESPACE