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# qcheckbox.h

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    00001 /****************************************************************************
    00002 **
    00003 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
    00004 ** All rights reserved.
    00005 ** Contact: Nokia Corporation (qt-info@nokia.com)
    00006 **
    00007 ** This file is part of the QtGui module of the Qt Toolkit.
    00008 **
    00009 ** $QT_BEGIN_LICENSE:LGPL$
    00010 ** Commercial Usage
    00011 ** Licensees holding valid Qt Commercial licenses may use this file in
    00012 ** accordance with the Qt Commercial License Agreement provided with the
    00013 ** Software or, alternatively, in accordance with the terms contained in
    00014 ** a written agreement between you and Nokia.
    00015 **
    00016 ** GNU Lesser General Public License Usage
    00017 ** Alternatively, this file may be used under the terms of the GNU Lesser
    00018 ** General Public License version 2.1 as published by the Free Software
    00019 ** Foundation and appearing in the file LICENSE.LGPL included in the
    00020 ** packaging of this file.  Please review the following information to
    00021 ** ensure the GNU Lesser General Public License version 2.1 requirements
    00022 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
    00023 **
    00024 ** In addition, as a special exception, Nokia gives you certain additional
    00025 ** rights.  These rights are described in the Nokia Qt LGPL Exception
    00026 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this module.
    00027 **
    00028 ** GNU General Public License Usage
    00029 ** Alternatively, this file may be used under the terms of the GNU
    00030 ** General Public License version 3.0 as published by the Free Software
    00031 ** Foundation and appearing in the file LICENSE.GPL included in the
    00032 ** packaging of this file.  Please review the following information to
    00033 ** ensure the GNU General Public License version 3.0 requirements will be
    00034 ** met: http://www.gnu.org/copyleft/gpl.html.
    00035 **
    00036 ** If you have questions regarding the use of this file, please contact
    00037 ** Nokia at qt-info@nokia.com.
    00038 ** $QT_END_LICENSE$
    00039 **
    00040 ****************************************************************************/
    00041
    00042 #ifndef QCHECKBOX_H
    00043 #define QCHECKBOX_H
    00044
    00045 #include <QtGui/qabstractbutton.h>
    00046
    00047 QT_BEGIN_HEADER
    00048
    00049 QT_BEGIN_NAMESPACE
    00050
    00051 QT_MODULE(Gui)
    00052
    00053 class QCheckBoxPrivate;
    00054 class QStyleOptionButton;
    00055
    00056 class Q_GUI_EXPORT QCheckBox : public QAbstractButton
    00057 {
    00058     Q_OBJECT
    00059
    00060     Q_PROPERTY(bool tristate READ isTristate WRITE setTristate)
    00061
    00062 public:
    00063     explicit QCheckBox(QWidget *parent=0);
    00064     explicit QCheckBox(const QString &text, QWidget *parent=0);
    00065
    00066
    00067     QSize sizeHint() const;
    00068
    00069     void setTristate(bool y = true);
    00070     bool isTristate() const;
    00071
    00072     Qt::CheckState checkState() const;
    00073     void setCheckState(Qt::CheckState state);
    00074
    00075 Q_SIGNALS:
    00076     void stateChanged(int);
    00077
    00078 protected:
    00079     bool event(QEvent *e);
    00080     bool hitButton(const QPoint &pos) const;
    00081     void checkStateSet();
    00082     void nextCheckState();
    00083     void paintEvent(QPaintEvent *);
    00084     void mouseMoveEvent(QMouseEvent *);
    00085     void initStyleOption(QStyleOptionButton *option) const;
    00086
    00087 #ifdef QT3_SUPPORT
    00088 public:
    00089     enum ToggleState {
    00090         Off =      Qt::Unchecked,
    00091         NoChange = Qt::PartiallyChecked,
    00092         On =       Qt::Checked
    00093     };
    00094     inline QT3_SUPPORT ToggleState state() const
    00095         { return static_cast<QCheckBox::ToggleState>(static_cast<int>(checkState())); }
    00096     inline QT3_SUPPORT void setState(ToggleState state)
    00097         { setCheckState(static_cast<Qt::CheckState>(static_cast<int>(state))); }
    00098     inline QT3_SUPPORT void setNoChange()
    00099         { setCheckState(Qt::PartiallyChecked); }
    00100     QT3_SUPPORT_CONSTRUCTOR QCheckBox(QWidget *parent, const char* name);
    00101     QT3_SUPPORT_CONSTRUCTOR QCheckBox(const QString &text, QWidget *parent, const char* name);
    00102 #endif
    00103
    00104 private:
    00105     Q_DECLARE_PRIVATE(QCheckBox)
    00106     Q_DISABLE_COPY(QCheckBox)
    00107 };
    00108
    00109 QT_END_NAMESPACE
    00110
    00111 QT_END_HEADER
    00112
    00113 #endif // QCHECKBOX_H