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Diffstat (limited to 'examples/widgets/graphicsview/anchorlayout/main.cpp')
-rw-r--r-- | examples/widgets/graphicsview/anchorlayout/main.cpp | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/examples/widgets/graphicsview/anchorlayout/main.cpp b/examples/widgets/graphicsview/anchorlayout/main.cpp new file mode 100644 index 0000000000..839aef2e39 --- /dev/null +++ b/examples/widgets/graphicsview/anchorlayout/main.cpp @@ -0,0 +1,129 @@ +/**************************************************************************** +** +** 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 <QGraphicsWidget> +#include <QGraphicsProxyWidget> +#include <QGraphicsAnchorLayout> +#include <QtWidgets> + +static QGraphicsProxyWidget *createItem(const QSizeF &minimum = QSizeF(100.0, 100.0), + const QSizeF &preferred = QSize(150.0, 100.0), + const QSizeF &maximum = QSizeF(200.0, 100.0), + const QString &name = "0") +{ + QGraphicsProxyWidget *w = new QGraphicsProxyWidget; + w->setWidget(new QPushButton(name)); + w->setData(0, name); + w->setMinimumSize(minimum); + w->setPreferredSize(preferred); + w->setMaximumSize(maximum); + + w->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred); + return w; +} + +int main(int argc, char **argv) +{ + QApplication app(argc, argv); + + QGraphicsScene scene; + scene.setSceneRect(0, 0, 800, 480); + + QSizeF minSize(30, 100); + QSizeF prefSize(210, 100); + QSizeF maxSize(300, 100); + + QGraphicsProxyWidget *a = createItem(minSize, prefSize, maxSize, "A"); + QGraphicsProxyWidget *b = createItem(minSize, prefSize, maxSize, "B"); + QGraphicsProxyWidget *c = createItem(minSize, prefSize, maxSize, "C"); + QGraphicsProxyWidget *d = createItem(minSize, prefSize, maxSize, "D"); + QGraphicsProxyWidget *e = createItem(minSize, prefSize, maxSize, "E"); + QGraphicsProxyWidget *f = createItem(QSizeF(30, 50), QSizeF(150, 50), maxSize, "F (overflow)"); + QGraphicsProxyWidget *g = createItem(QSizeF(30, 50), QSizeF(30, 100), maxSize, "G (overflow)"); + + QGraphicsAnchorLayout *l = new QGraphicsAnchorLayout; + l->setSpacing(0); + + QGraphicsWidget *w = new QGraphicsWidget(0, Qt::Window); + w->setPos(20, 20); + w->setLayout(l); + + // vertical + l->addAnchor(a, Qt::AnchorTop, l, Qt::AnchorTop); + l->addAnchor(b, Qt::AnchorTop, l, Qt::AnchorTop); + + l->addAnchor(c, Qt::AnchorTop, a, Qt::AnchorBottom); + l->addAnchor(c, Qt::AnchorTop, b, Qt::AnchorBottom); + l->addAnchor(c, Qt::AnchorBottom, d, Qt::AnchorTop); + l->addAnchor(c, Qt::AnchorBottom, e, Qt::AnchorTop); + + l->addAnchor(d, Qt::AnchorBottom, l, Qt::AnchorBottom); + l->addAnchor(e, Qt::AnchorBottom, l, Qt::AnchorBottom); + + l->addAnchor(c, Qt::AnchorTop, f, Qt::AnchorTop); + l->addAnchor(c, Qt::AnchorVerticalCenter, f, Qt::AnchorBottom); + l->addAnchor(f, Qt::AnchorBottom, g, Qt::AnchorTop); + l->addAnchor(c, Qt::AnchorBottom, g, Qt::AnchorBottom); + + // horizontal + l->addAnchor(l, Qt::AnchorLeft, a, Qt::AnchorLeft); + l->addAnchor(l, Qt::AnchorLeft, d, Qt::AnchorLeft); + l->addAnchor(a, Qt::AnchorRight, b, Qt::AnchorLeft); + + l->addAnchor(a, Qt::AnchorRight, c, Qt::AnchorLeft); + l->addAnchor(c, Qt::AnchorRight, e, Qt::AnchorLeft); + + l->addAnchor(b, Qt::AnchorRight, l, Qt::AnchorRight); + l->addAnchor(e, Qt::AnchorRight, l, Qt::AnchorRight); + l->addAnchor(d, Qt::AnchorRight, e, Qt::AnchorLeft); + + l->addAnchor(l, Qt::AnchorLeft, f, Qt::AnchorLeft); + l->addAnchor(l, Qt::AnchorLeft, g, Qt::AnchorLeft); + l->addAnchor(f, Qt::AnchorRight, g, Qt::AnchorRight); + + + scene.addItem(w); + scene.setBackgroundBrush(Qt::darkGreen); + QGraphicsView view(&scene); + + view.show(); + + return app.exec(); +} |