48e0c4df23
Change-Id: Ic804938fc352291d011800d21e549c10acac66fb Reviewed-by: Lars Knoll <lars.knoll@digia.com>
138 lines
5.0 KiB
C++
138 lines
5.0 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the examples of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
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** of its contributors may be used to endorse or promote products derived
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** from this software without specific prior written permission.
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**
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QtWidgets>
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class Widget : public QGraphicsWidget
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{
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public:
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Widget(const QColor &color, const QColor &textColor, const QString &caption,
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QGraphicsItem *parent = 0)
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: QGraphicsWidget(parent)
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, caption(caption)
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, color(color)
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, textColor(textColor)
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{
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}
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void paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget * = 0)
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{
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QFont font;
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font.setPixelSize(0.75 * qMin(boundingRect().width(), boundingRect().height()));
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painter->fillRect(boundingRect(), color);
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painter->save();
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painter->setFont(font);
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painter->setPen(textColor);
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painter->drawText(boundingRect(), Qt::AlignCenter, caption);
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painter->restore();
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}
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private:
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QString caption;
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QColor color;
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QColor textColor;
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};
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int main(int argc, char *argv[])
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{
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QApplication app(argc, argv);
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QGraphicsScene *scene = new QGraphicsScene();
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Widget *a = new Widget(Qt::blue, Qt::white, "a");
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a->setPreferredSize(100, 100);
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Widget *b = new Widget(Qt::green, Qt::black, "b");
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b->setPreferredSize(100, 100);
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Widget *c = new Widget(Qt::red, Qt::black, "c");
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c->setPreferredSize(100, 100);
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QGraphicsAnchorLayout *layout = new QGraphicsAnchorLayout();
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/*
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//! [adding a corner anchor in two steps]
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layout->addAnchor(a, Qt::AnchorTop, layout, Qt::AnchorTop);
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layout->addAnchor(a, Qt::AnchorLeft, layout, Qt::AnchorLeft);
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//! [adding a corner anchor in two steps]
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*/
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//! [adding a corner anchor]
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layout->addCornerAnchors(a, Qt::TopLeftCorner, layout, Qt::TopLeftCorner);
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//! [adding a corner anchor]
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//! [adding anchors]
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layout->addAnchor(b, Qt::AnchorLeft, a, Qt::AnchorRight);
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layout->addAnchor(b, Qt::AnchorTop, a, Qt::AnchorBottom);
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//! [adding anchors]
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// Place a third widget below the second.
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layout->addAnchor(b, Qt::AnchorBottom, c, Qt::AnchorTop);
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/*
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//! [adding anchors to match sizes in two steps]
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layout->addAnchor(b, Qt::AnchorLeft, c, Qt::AnchorLeft);
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layout->addAnchor(b, Qt::AnchorRight, c, Qt::AnchorRight);
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//! [adding anchors to match sizes in two steps]
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*/
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//! [adding anchors to match sizes]
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layout->addAnchors(b, c, Qt::Horizontal);
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//! [adding anchors to match sizes]
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// Anchor the bottom-right corner of the third widget to the bottom-right
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// corner of the layout.
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layout->addCornerAnchors(c, Qt::BottomRightCorner, layout, Qt::BottomRightCorner);
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QGraphicsWidget *w = new QGraphicsWidget(0, Qt::Window | Qt::CustomizeWindowHint | Qt::WindowTitleHint);
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w->setPos(20, 20);
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w->setMinimumSize(100, 100);
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w->setPreferredSize(320, 240);
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w->setLayout(layout);
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w->setWindowTitle(QApplication::translate("simpleanchorlayout", "QGraphicsAnchorLayout in use"));
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scene->addItem(w);
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QGraphicsView *view = new QGraphicsView();
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view->setScene(scene);
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view->setWindowTitle(QApplication::translate("simpleanchorlayout", "Simple Anchor Layout"));
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view->resize(360, 320);
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view->show();
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return app.exec();
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}
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