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#include <QGraphicsWidget>
#include <QGraphicsProxyWidget>
#include <QGraphicsAnchorLayout>
#include <QtGui>
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);
return w;
}
int main(int argc, char **argv)
{
QApplication app(argc, argv);
QGraphicsScene scene;
scene.setSceneRect(0, 0, 800, 480);
QSizeF min(30, 100);
QSizeF pref(210, 100);
QSizeF max(300, 100);
QGraphicsProxyWidget *a = createItem(min, pref, max, "A");
QGraphicsProxyWidget *b = createItem(min, pref, max, "B");
QGraphicsProxyWidget *c = createItem(min, pref, max, "C");
QGraphicsProxyWidget *d = createItem(min, pref, max, "D");
QGraphicsProxyWidget *e = createItem(min, pref, max, "E");
QGraphicsProxyWidget *f = createItem(QSizeF(30, 50), QSizeF(150, 50), max, "F");
QGraphicsProxyWidget *g = createItem(QSizeF(30, 50), QSizeF(30, 100), max, "G");
QGraphicsAnchorLayout *l = new QGraphicsAnchorLayout;
QGraphicsWidget *w = new QGraphicsWidget(0, Qt::Window);
w->setPos(20, 20);
w->setLayout(l);
// vertical
l->addAnchor(a, Qt::AnchorTop, l, Qt::AnchorTop);
l->setAnchorSpacing(a, Qt::AnchorTop, l, Qt::AnchorTop, 0);
l->addAnchor(b, Qt::AnchorTop, l, Qt::AnchorTop);
l->setAnchorSpacing(b, Qt::AnchorTop, l, Qt::AnchorTop, 0);
l->addAnchor(c, Qt::AnchorTop, a, Qt::AnchorBottom);
l->setAnchorSpacing(c, Qt::AnchorTop, a, Qt::AnchorBottom, 0);
l->addAnchor(c, Qt::AnchorTop, b, Qt::AnchorBottom);
l->setAnchorSpacing(c, Qt::AnchorTop, b, Qt::AnchorBottom, 0);
l->addAnchor(c, Qt::AnchorBottom, d, Qt::AnchorTop);
l->setAnchorSpacing(c, Qt::AnchorBottom, d, Qt::AnchorTop, 0);
l->addAnchor(c, Qt::AnchorBottom, e, Qt::AnchorTop);
l->setAnchorSpacing(c, Qt::AnchorBottom, e, Qt::AnchorTop, 0);
l->addAnchor(d, Qt::AnchorBottom, l, Qt::AnchorBottom);
l->setAnchorSpacing(d, Qt::AnchorBottom, l, Qt::AnchorBottom, 0);
l->addAnchor(e, Qt::AnchorBottom, l, Qt::AnchorBottom);
l->setAnchorSpacing(e, Qt::AnchorBottom, l, Qt::AnchorBottom, 0);
l->addAnchor(c, Qt::AnchorTop, f, Qt::AnchorTop);
l->setAnchorSpacing(c, Qt::AnchorTop, f, Qt::AnchorTop, 0);
l->addAnchor(c, Qt::AnchorVerticalCenter, f, Qt::AnchorBottom);
l->setAnchorSpacing(c, Qt::AnchorVerticalCenter, f, Qt::AnchorBottom, 0);
l->addAnchor(f, Qt::AnchorBottom, g, Qt::AnchorTop);
l->setAnchorSpacing(f, Qt::AnchorBottom, g, Qt::AnchorTop, 0);
l->addAnchor(c, Qt::AnchorBottom, g, Qt::AnchorBottom);
l->setAnchorSpacing(c, Qt::AnchorBottom, g, Qt::AnchorBottom, 0);
// horizontal
l->addAnchor(l, Qt::AnchorLeft, a, Qt::AnchorLeft);
l->setAnchorSpacing(l, Qt::AnchorLeft, a, Qt::AnchorLeft, 0);
l->addAnchor(l, Qt::AnchorLeft, d, Qt::AnchorLeft);
l->setAnchorSpacing(l, Qt::AnchorLeft, d, Qt::AnchorLeft, 0);
l->addAnchor(a, Qt::AnchorRight, b, Qt::AnchorLeft);
l->setAnchorSpacing(a, Qt::AnchorRight, b, Qt::AnchorLeft, 0);
l->addAnchor(a, Qt::AnchorRight, c, Qt::AnchorLeft);
l->setAnchorSpacing(a, Qt::AnchorRight, c, Qt::AnchorLeft, 0);
l->addAnchor(c, Qt::AnchorRight, e, Qt::AnchorLeft);
l->setAnchorSpacing(c, Qt::AnchorRight, e, Qt::AnchorLeft, 0);
l->addAnchor(b, Qt::AnchorRight, l, Qt::AnchorRight);
l->setAnchorSpacing(b, Qt::AnchorRight, l, Qt::AnchorRight, 0);
l->addAnchor(e, Qt::AnchorRight, l, Qt::AnchorRight);
l->setAnchorSpacing(e, Qt::AnchorRight, l, Qt::AnchorRight, 0);
l->addAnchor(d, Qt::AnchorRight, e, Qt::AnchorLeft);
l->setAnchorSpacing(d, Qt::AnchorRight, e, Qt::AnchorLeft, 0);
l->addAnchor(l, Qt::AnchorLeft, f, Qt::AnchorLeft);
l->setAnchorSpacing(l, Qt::AnchorLeft, f, Qt::AnchorLeft, 0);
l->addAnchor(l, Qt::AnchorLeft, g, Qt::AnchorLeft);
l->setAnchorSpacing(l, Qt::AnchorLeft, g, Qt::AnchorLeft, 0);
l->addAnchor(f, Qt::AnchorRight, g, Qt::AnchorRight);
l->setAnchorSpacing(f, Qt::AnchorRight, g, Qt::AnchorRight, 0);
scene.addItem(w);
scene.setBackgroundBrush(Qt::darkGreen);
QGraphicsView *view = new QGraphicsView(&scene);
view->show();
return app.exec();
}
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