mitk: qxtgroupbox.cpp Source File

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00001 /****************************************************************************
00002  **
00003  ** Copyright (C) Qxt Foundation. Some rights reserved.
00004  **
00005  ** This file is part of the QxtGui module of the Qxt library.
00006  **
00007  ** This library is free software; you can redistribute it and/or modify it
00008  ** under the terms of the Common Public License, version 1.0, as published
00009  ** by IBM, and/or under the terms of the GNU Lesser General Public License,
00010  ** version 2.1, as published by the Free Software Foundation.
00011  **
00012  ** This file is provided "AS IS", without WARRANTIES OR CONDITIONS OF ANY
00013  ** KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT LIMITATION, ANY
00014  ** WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, MERCHANTABILITY OR
00015  ** FITNESS FOR A PARTICULAR PURPOSE.
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00018  ** file. See the LICENSE file and the cpl1.0.txt/lgpl-2.1.txt files
00019  ** included with the source distribution for more information.
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00024  ****************************************************************************/
00025 #include "qxtgroupbox.h"
00026 
00027 #include <QChildEvent>
00028 
00029 class QxtGroupBoxPrivate : public QxtPrivate<QxtGroupBox>
00030 {
00031 public:
00032     QXT_DECLARE_PUBLIC(QxtGroupBox);
00033 
00034     QxtGroupBoxPrivate();
00035     bool collapsive;
00036     bool flat; // so we can restore it when expanding
00037 };
00038 
00039 QxtGroupBoxPrivate::QxtGroupBoxPrivate() : collapsive(true), flat(false)
00040 {}
00041 
00042 
00058 QxtGroupBox::QxtGroupBox(QWidget* parent)
00059         : QGroupBox(parent)
00060 {
00061     QXT_INIT_PRIVATE(QxtGroupBox);
00062     setCheckable(true);
00063     setChecked(true);
00064     connect(this, SIGNAL(toggled(bool)), this, SLOT(setExpanded(bool)));
00065 
00066 }
00067 
00071 QxtGroupBox::QxtGroupBox(const QString& title, QWidget* parent)
00072         : QGroupBox(title, parent)
00073 {
00074     QXT_INIT_PRIVATE(QxtGroupBox);
00075     setCheckable(true);
00076     setChecked(true);
00077     connect(this, SIGNAL(toggled(bool)), this, SLOT(setExpanded(bool)));
00078 }
00079 
00083 QxtGroupBox::~QxtGroupBox()
00084 {}
00085 
00090 bool QxtGroupBox::isCollapsive() const
00091 {
00092     return qxt_d().collapsive;
00093 }
00094 
00095 void QxtGroupBox::setCollapsive(bool enable)
00096 {
00097     if (qxt_d().collapsive != enable)
00098     {
00099         qxt_d().collapsive = enable;
00100         if (!enable)
00101             setExpanded(true);
00102         else if (!isChecked())
00103             setExpanded(false);
00104     }
00105 }
00106 
00114 void QxtGroupBox::setCollapsed(bool collapsed)
00115 {
00116     setExpanded(!collapsed);
00117 }
00118 
00126 void QxtGroupBox::setExpanded(bool expanded)
00127 {
00128     if (qxt_d().collapsive || expanded)
00129     {
00130         // show/hide direct children
00131         foreach(QObject* child, children())
00132         {
00133             if (child->isWidgetType())
00134                 static_cast<QWidget*>(child)->setVisible(expanded);
00135         }
00136         if (expanded) {
00137           setFlat(qxt_d().flat);
00138         } else {
00139           qxt_d().flat = isFlat();
00140           setFlat(true);
00141         }
00142     }
00143 }
00144 
00148 void QxtGroupBox::childEvent(QChildEvent* event)
00149 {
00150     QObject* child = event->child();
00151     if (event->added() && child->isWidgetType())
00152     {
00153         QWidget* widget = static_cast<QWidget*>(child);
00154         if (qxt_d().collapsive && !isChecked())
00155             widget->hide();
00156     }
00157 }