--- /dev/null
+/****************************************************************************
+**
+** Copyright (C) Qxt Foundation. Some rights reserved.
+**
+** This file is part of the QxtGui module of the Qt eXTension library
+**
+** This library is free software; you can redistribute it and/or modify it
+** under the terms of th Common Public License, version 1.0, as published by
+** IBM.
+**
+** This file is provided "AS IS", without WARRANTIES OR CONDITIONS OF ANY
+** KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT LIMITATION, ANY
+** WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, MERCHANTABILITY OR
+** FITNESS FOR A PARTICULAR PURPOSE.
+**
+** You should have received a copy of the CPL along with this file.
+** See the LICENSE file and the cpl1.0.txt file included with the source
+** distribution for more information. If you did not receive a copy of the
+** license, contact the Qxt Foundation.
+**
+** <http://libqxt.sourceforge.net> <foundation@libqxt.org>
+**
+****************************************************************************/
+#include "qxtgroupbox.h"
+
+#include <QChildEvent>
+
+class QxtGroupBoxPrivate : public QxtPrivate<QxtGroupBox>
+{
+public:
+ QXT_DECLARE_PUBLIC(QxtGroupBox);
+
+ QxtGroupBoxPrivate();
+ void init();
+ bool collapsive;
+};
+
+QxtGroupBoxPrivate::QxtGroupBoxPrivate() : collapsive(true)
+{}
+
+void QxtGroupBoxPrivate::init()
+{
+ qxt_p().setCheckable(true);
+ qxt_p().setChecked(true);
+ QObject::connect(&qxt_p(), SIGNAL(toggled(bool)), &qxt_p(), SLOT(setExpanded(bool)));
+}
+
+/*!
+ \class QxtGroupBox QxtGroupBox
+ \ingroup QxtGui
+ \brief A collapsive and checkable QGroupBox.
+
+ QxtGroupBox is a checkable group box automatically expanding/collapsing
+ its content according to the check state. QxtGroupBox shows its children
+ when checked and hides its children when unchecked.
+
+ \image html qxtgroupbox.png "Two QxtGroupBoxes - an expanded and a collapsed - on top of each other."
+ */
+
+/*!
+ Constructs a new QxtGroupBox with \a parent.
+ */
+QxtGroupBox::QxtGroupBox(QWidget* parent)
+ : QGroupBox(parent)
+{
+ QXT_INIT_PRIVATE(QxtGroupBox);
+ qxt_d().init();
+}
+
+/*!
+ Constructs a new QxtGroupBox with \a title and \a parent.
+ */
+QxtGroupBox::QxtGroupBox(const QString& title, QWidget* parent)
+ : QGroupBox(title, parent)
+{
+ QXT_INIT_PRIVATE(QxtGroupBox);
+ qxt_d().init();
+}
+
+/*!
+ Destructs the group box.
+ */
+QxtGroupBox::~QxtGroupBox()
+{}
+
+/*!
+ \property QxtGroupBox::collapsive
+ \brief This property holds whether the group box is collapsive
+ */
+bool QxtGroupBox::isCollapsive() const
+{
+ return qxt_d().collapsive;
+}
+
+void QxtGroupBox::setCollapsive(bool enable)
+{
+ if (qxt_d().collapsive != enable)
+ {
+ qxt_d().collapsive = enable;
+ if (!enable)
+ setExpanded(true);
+ else if (!isChecked())
+ setExpanded(false);
+ }
+}
+
+/*!
+ Sets the group box \a collapsed.
+
+ A collapsed group box hides its children.
+
+ \sa setExpanded(), QGroupBox::toggled()
+ */
+void QxtGroupBox::setCollapsed(bool collapsed)
+{
+ setExpanded(!collapsed);
+}
+
+/*!
+ Sets the group box \a expanded.
+
+ An expanded group box shows its children.
+
+ \sa setCollapsed(), QGroupBox::toggled()
+ */
+void QxtGroupBox::setExpanded(bool expanded)
+{
+ if (qxt_d().collapsive || expanded)
+ {
+ // show/hide direct children
+ foreach (QObject* child, children())
+ {
+ if (child->isWidgetType())
+ static_cast<QWidget*>(child)->setVisible(expanded);
+ }
+ setFlat(!expanded);
+ }
+}
+
+void QxtGroupBox::childEvent(QChildEvent* event)
+{
+ QObject* child = event->child();
+ if (event->added() && child->isWidgetType())
+ {
+ QWidget* widget = static_cast<QWidget*>(child);
+ if (qxt_d().collapsive && !isChecked())
+ widget->hide();
+ }
+}