05fc3aef53
Replace the current license disclaimer in files by a SPDX-License-Identifier. Files that have to be modified by hand are modified. License files are organized under LICENSES directory. Task-number: QTBUG-67283 Change-Id: Id880c92784c40f3bbde861c0d93f58151c18b9f1 Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org> Reviewed-by: Lars Knoll <lars.knoll@qt.io> Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
101 lines
3.1 KiB
C++
101 lines
3.1 KiB
C++
// Copyright (C) 2016 The Qt Company Ltd.
|
|
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
|
|
|
|
#include <QtWidgets>
|
|
|
|
class Widget : public QGraphicsWidget
|
|
{
|
|
public:
|
|
Widget(const QColor &color, const QColor &textColor, const QString &caption,
|
|
QGraphicsItem *parent = nullptr)
|
|
: QGraphicsWidget(parent)
|
|
, caption(caption)
|
|
, color(color)
|
|
, textColor(textColor)
|
|
{
|
|
}
|
|
|
|
void paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget * = nullptr) override
|
|
{
|
|
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;
|
|
|
|
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);
|
|
|
|
auto w = new QGraphicsWidget(nullptr, 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;
|
|
view.setScene(&scene);
|
|
view.setWindowTitle(QApplication::translate("simpleanchorlayout", "Simple Anchor Layout"));
|
|
|
|
view.resize(360, 320);
|
|
view.show();
|
|
|
|
return app.exec();
|
|
}
|