/****************************************************************************+
−
**+
−
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
−
** All rights reserved.+
−
** Contact: Nokia Corporation (qt-info@nokia.com)+
−
**+
−
** This file is part of the examples of the Qt Toolkit.+
−
**+
−
** $QT_BEGIN_LICENSE:LGPL$+
−
** No Commercial Usage+
−
** This file contains pre-release code and may not be distributed.+
−
** You may use this file in accordance with the terms and conditions+
−
** contained in the Technology Preview License Agreement accompanying+
−
** this package.+
−
**+
−
** 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, Nokia gives you certain additional+
−
** rights.  These rights are described in the Nokia Qt LGPL Exception+
−
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
−
**+
−
** If you have questions regarding the use of this file, please contact+
−
** Nokia at qt-info@nokia.com.+
−
**+
−
**+
−
**+
−
**+
−
**+
−
**+
−
**+
−
**+
−
** $QT_END_LICENSE$+
−
**+
−
****************************************************************************/+
−
+
−
#include <QtGui>+
−
+
−
#include "borderlayout.h"+
−
+
−
BorderLayout::BorderLayout(QWidget *parent, int margin, int spacing)+
−
    : QLayout(parent)+
−
{+
−
    setMargin(margin);+
−
    setSpacing(spacing);+
−
}+
−
+
−
BorderLayout::BorderLayout(int spacing)+
−
{+
−
    setSpacing(spacing);+
−
}+
−
+
−
+
−
BorderLayout::~BorderLayout()+
−
{+
−
    QLayoutItem *l;+
−
    while ((l = takeAt(0)))+
−
        delete l;+
−
}+
−
+
−
void BorderLayout::addItem(QLayoutItem *item)+
−
{+
−
    add(item, West);+
−
}+
−
+
−
void BorderLayout::addWidget(QWidget *widget, Position position)+
−
{+
−
    add(new QWidgetItem(widget), position);+
−
}+
−
+
−
Qt::Orientations BorderLayout::expandingDirections() const+
−
{+
−
    return Qt::Horizontal | Qt::Vertical;+
−
}+
−
+
−
bool BorderLayout::hasHeightForWidth() const+
−
{+
−
    return false;+
−
}+
−
+
−
int BorderLayout::count() const+
−
{+
−
    return list.size();+
−
}+
−
+
−
QLayoutItem *BorderLayout::itemAt(int index) const+
−
{+
−
    ItemWrapper *wrapper = list.value(index);+
−
    if (wrapper)+
−
        return wrapper->item;+
−
    else+
−
        return 0;+
−
}+
−
+
−
QSize BorderLayout::minimumSize() const+
−
{+
−
    return calculateSize(MinimumSize);+
−
}+
−
+
−
void BorderLayout::setGeometry(const QRect &rect)+
−
{+
−
    ItemWrapper *center = 0;+
−
    int eastWidth = 0;+
−
    int westWidth = 0;+
−
    int northHeight = 0;+
−
    int southHeight = 0;+
−
    int centerHeight = 0;+
−
    int i;+
−
+
−
    QLayout::setGeometry(rect);+
−
+
−
    for (i = 0; i < list.size(); ++i) {+
−
        ItemWrapper *wrapper = list.at(i);+
−
        QLayoutItem *item = wrapper->item;+
−
        Position position = wrapper->position;+
−
+
−
        if (position == North) {+
−
            item->setGeometry(QRect(rect.x(), northHeight, rect.width(),+
−
                                    item->sizeHint().height()));+
−
+
−
            northHeight += item->geometry().height() + spacing();+
−
        } else if (position == South) {+
−
            item->setGeometry(QRect(item->geometry().x(),+
−
                                    item->geometry().y(), rect.width(),+
−
                                    item->sizeHint().height()));+
−
+
−
            southHeight += item->geometry().height() + spacing();+
−
+
−
            item->setGeometry(QRect(rect.x(),+
−
                              rect.y() + rect.height() - southHeight + spacing(),+
−
                              item->geometry().width(),+
−
                              item->geometry().height()));+
−
        } else if (position == Center) {+
−
            center = wrapper;+
−
        }+
−
    }+
−
+
−
    centerHeight = rect.height() - northHeight - southHeight;+
−
+
−
    for (i = 0; i < list.size(); ++i) {+
−
        ItemWrapper *wrapper = list.at(i);+
−
        QLayoutItem *item = wrapper->item;+
−
        Position position = wrapper->position;+
−
+
−
        if (position == West) {+
−
            item->setGeometry(QRect(rect.x() + westWidth, northHeight,+
−
                                    item->sizeHint().width(), centerHeight));+
−
+
−
            westWidth += item->geometry().width() + spacing();+
−
        } else if (position == East) {+
−
            item->setGeometry(QRect(item->geometry().x(), item->geometry().y(),+
−
                                    item->sizeHint().width(), centerHeight));+
−
+
−
            eastWidth += item->geometry().width() + spacing();+
−
+
−
            item->setGeometry(QRect(+
−
                              rect.x() + rect.width() - eastWidth + spacing(),+
−
                              northHeight, item->geometry().width(),+
−
                              item->geometry().height()));+
−
        }+
−
    }+
−
+
−
    if (center)+
−
        center->item->setGeometry(QRect(westWidth, northHeight,+
−
                                        rect.width() - eastWidth - westWidth,+
−
                                        centerHeight));+
−
}+
−
+
−
QSize BorderLayout::sizeHint() const+
−
{+
−
    return calculateSize(SizeHint);+
−
}+
−
+
−
QLayoutItem *BorderLayout::takeAt(int index)+
−
{+
−
    if (index >= 0 && index < list.size()) {+
−
        ItemWrapper *layoutStruct = list.takeAt(index);+
−
        return layoutStruct->item;+
−
    }+
−
    return 0;+
−
}+
−
+
−
void BorderLayout::add(QLayoutItem *item, Position position)+
−
{+
−
    list.append(new ItemWrapper(item, position));+
−
}+
−
+
−
QSize BorderLayout::calculateSize(SizeType sizeType) const+
−
{+
−
    QSize totalSize;+
−
+
−
    for (int i = 0; i < list.size(); ++i) {+
−
        ItemWrapper *wrapper = list.at(i);+
−
        Position position = wrapper->position;+
−
        QSize itemSize;+
−
+
−
        if (sizeType == MinimumSize)+
−
            itemSize = wrapper->item->minimumSize();+
−
        else // (sizeType == SizeHint)+
−
            itemSize = wrapper->item->sizeHint();+
−
+
−
        if (position == North || position == South || position == Center)+
−
            totalSize.rheight() += itemSize.height();+
−
+
−
        if (position == West || position == East || position == Center)+
−
            totalSize.rwidth() += itemSize.width();+
−
    }+
−
    return totalSize;+
−
}+
−