libs/widgets/KoVBox.cpp

0001 /* This file is part of the KDE libraries
0002    Copyright (C) 2005 David Faure <faure@kde.org>
0003
0004    This library is free software; you can redistribute it and/or
0005    modify it under the terms of the GNU Library General Public
0006    License version 2 as published by the Free Software Foundation.
0007
0008    This library is distributed in the hope that it will be useful,
0009    but WITHOUT ANY WARRANTY; without even the implied warranty of
0010    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
0011    Library General Public License for more details.
0012
0013    You should have received a copy of the GNU Library General Public License
0014    along with this library; see the file COPYING.LIB.  If not, write to
0015    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
0016    Boston, MA 02110-1301, USA.
0017 */
0018
0019 #include "KoVBox.h"
0020
0021 #include <QEvent>
0022 #include <QApplication>
0023 #include <QVBoxLayout>
0024
0025 KoVBox::KoVBox(QWidget *parent)
0026     : QFrame(parent),
0027       d(0)
0028 {
0029     QVBoxLayout *layout = new QVBoxLayout(this);
0030     layout->setSpacing(0);
0031     layout->setMargin(0);
0032
0033     setLayout(layout);
0034 }
0035
0036 KoVBox::~KoVBox()
0037 {
0038 }
0039
0040 void KoVBox::childEvent(QChildEvent *event)
0041 {
0042     switch (event->type()) {
0043     case QEvent::ChildAdded: {
0044         QChildEvent *childEvent = static_cast<QChildEvent *>(event);
0045         if (childEvent->child()->isWidgetType()) {
0046             QWidget *widget = static_cast<QWidget *>(childEvent->child());
0047             static_cast<QBoxLayout *>(layout())->addWidget(widget);
0048         }
0049
0050         break;
0051     }
0052     case QEvent::ChildRemoved: {
0053         QChildEvent *childEvent = static_cast<QChildEvent *>(event);
0054         if (childEvent->child()->isWidgetType()) {
0055             QWidget *widget = static_cast<QWidget *>(childEvent->child());
0056             static_cast<QBoxLayout *>(layout())->removeWidget(widget);
0057         }
0058
0059         break;
0060     }
0061     default:
0062         break;
0063     }
0064     QFrame::childEvent(event);
0065 }
0066
0067 QSize KoVBox::sizeHint() const
0068 {
0069     KoVBox *that = const_cast<KoVBox *>(this);
0070     QApplication::sendPostedEvents(that, QEvent::ChildAdded);
0071
0072     return QFrame::sizeHint();
0073 }
0074
0075 QSize KoVBox::minimumSizeHint() const
0076 {
0077     KoVBox *that = const_cast<KoVBox *>(this);
0078     QApplication::sendPostedEvents(that, QEvent::ChildAdded);
0079
0080     return QFrame::minimumSizeHint();
0081 }
0082
0083 void KoVBox::setSpacing(int spacing)
0084 {
0085     layout()->setSpacing(spacing);
0086 }
0087
0088 void KoVBox::setStretchFactor(QWidget *widget, int stretch)
0089 {
0090     static_cast<QBoxLayout *>(layout())->setStretchFactor(widget, stretch);
0091 }
0092
0093 void KoVBox::setMargin(int margin)
0094 {
0095     layout()->setMargin(margin);
0096 }
0097