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+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** 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 <QtWidgets>
+
+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();
+}