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/****************************************************************************
**
** 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.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
** the names of its contributors may be used to endorse or promote
** products derived from this software without specific prior written
** permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtGui>
class Widget : public QGraphicsWidget
{
public:
Widget(const QColor &color, const QColor &textColor, const QString &caption,
QGraphicsItem *parent = 0)
: QGraphicsWidget(parent), caption(caption), color(color), textColor(textColor)
{
}
void paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget * = 0)
{
QFont font;
font.setPixelSize(0.75 * qMin(boundingRect().width(), boundingRect().height()));
painter->fillRect(boundingRect(), color);
painter->save();
painter->setFont(font);
painter->setPen(textColor);
painter->drawText(boundingRect(), Qt::AlignCenter, caption);
painter->restore();
}
private:
QString caption;
QColor color;
QColor textColor;
};
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
QGraphicsScene *scene = new QGraphicsScene();
Widget *a = new Widget(Qt::blue, Qt::white, "a");
a->setPreferredSize(100, 100);
Widget *b = new Widget(Qt::green, Qt::black, "b");
b->setPreferredSize(100, 100);
Widget *c = new Widget(Qt::red, Qt::black, "c");
c->setPreferredSize(100, 100);
QGraphicsAnchorLayout *layout = new QGraphicsAnchorLayout();
/*
//! [adding a corner anchor in two steps]
layout->addAnchor(a, Qt::AnchorTop, layout, Qt::AnchorTop);
layout->addAnchor(a, Qt::AnchorLeft, layout, Qt::AnchorLeft);
//! [adding a corner anchor in two steps]
*/
//! [adding a corner anchor]
layout->addCornerAnchors(a, Qt::TopLeftCorner, layout, Qt::TopLeftCorner);
//! [adding a corner anchor]
//! [adding anchors]
layout->addAnchor(b, Qt::AnchorLeft, a, Qt::AnchorRight);
layout->addAnchor(b, Qt::AnchorTop, a, Qt::AnchorBottom);
//! [adding anchors]
// Place a third widget below the second.
layout->addAnchor(b, Qt::AnchorBottom, c, Qt::AnchorTop);
/*
//! [adding anchors to match sizes in two steps]
layout->addAnchor(b, Qt::AnchorLeft, c, Qt::AnchorLeft);
layout->addAnchor(b, Qt::AnchorRight, c, Qt::AnchorRight);
//! [adding anchors to match sizes in two steps]
*/
//! [adding anchors to match sizes]
layout->addAnchors(b, c, Qt::Horizontal);
//! [adding anchors to match sizes]
// Anchor the bottom-right corner of the third widget to the bottom-right
// corner of the layout.
layout->addCornerAnchors(c, Qt::BottomRightCorner, layout, Qt::BottomRightCorner);
QGraphicsWidget *w = new QGraphicsWidget(0, Qt::Window | Qt::CustomizeWindowHint | Qt::WindowTitleHint);
w->setPos(20, 20);
w->setMinimumSize(100, 100);
w->setPreferredSize(320, 240);
w->setLayout(layout);
w->setWindowTitle(QApplication::translate("simpleanchorlayout", "QGraphicsAnchorLayout in use"));
scene->addItem(w);
QGraphicsView *view = new QGraphicsView();
view->setScene(scene);
view->setWindowTitle(QApplication::translate("simpleanchorlayout", "Simple Anchor Layout"));
view->resize(360, 320);
view->show();
return app.exec();
}
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