f776595cc1
From Qt 5.7 -> tools & applications are lisenced under GPL v3 with some exceptions, see http://blog.qt.io/blog/2016/01/13/new-agreement-with-the-kde-free-qt-foundation/ Updated license headers to use new GPL-EXCEPT header instead of LGPL21 one (in those files which will be under GPL 3 with exceptions) Change-Id: I42a473ddc97101492a60b9287d90979d9eb35ae1 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com> Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
115 lines
3.7 KiB
C++
115 lines
3.7 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2012 Thorbjørn Lund Martsum - tmartsum[at]gmail.com
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the test suite of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:GPL-EXCEPT$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3 as published by the Free Software
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** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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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 MyGraphicsItem : public QGraphicsRectItem
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{
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public:
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MyGraphicsItem() : QGraphicsRectItem()
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{
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setFlags(QGraphicsItem::ItemIsSelectable);
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}
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void paint(QPainter *painter, const QStyleOptionGraphicsItem * /* option*/, QWidget * /*widget*/) Q_DECL_OVERRIDE
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{
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if (isSelected())
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painter->fillRect(rect(), QColor(255, 0, 0));
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else
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painter->fillRect(rect(), QColor(0, 255, 0));
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}
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};
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class MyGraphicsView : public QGraphicsView
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{
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Q_OBJECT
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public:
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MyGraphicsView(QWidget *w, QLabel *l) : QGraphicsView(w), rubberbandLabel(l)
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{
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setDragMode(QGraphicsView::RubberBandDrag);
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connect(this, SIGNAL(rubberBandChanged(QRect, QPointF, QPointF)), this, SLOT(updateRubberbandInfo(QRect, QPointF, QPointF)));
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}
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protected:
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void mouseMoveEvent(QMouseEvent *event) Q_DECL_OVERRIDE
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{
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QGraphicsView::mouseMoveEvent(event);
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int rightmostInView = viewport()->mapToGlobal(viewport()->geometry().topRight()).x();
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int xglobal = event->globalX();
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if (xglobal > rightmostInView)
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horizontalScrollBar()->setValue(horizontalScrollBar()->value() + 10);
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int bottomPos = viewport()->mapToGlobal(viewport()->geometry().bottomRight()).y();
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int yglobal = event->globalY();
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if (yglobal > bottomPos)
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verticalScrollBar()->setValue(verticalScrollBar()->value() + 10);
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}
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protected slots:
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void updateRubberbandInfo(QRect r, QPointF from, QPointF to)
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{
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QString textToShow;
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QDebug s(&textToShow);
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s << r << from << to;
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rubberbandLabel->setText(textToShow);
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}
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protected:
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QLabel *rubberbandLabel;
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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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QWidget w;
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w.setLayout(new QVBoxLayout);
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QLabel *l = new QLabel(&w);
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MyGraphicsView *v = new MyGraphicsView(&w, l);
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w.layout()->addWidget(v);
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w.layout()->addWidget(l);
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QGraphicsScene s(0.0, 0.0, 5000.0, 5000.0);
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v->setScene(&s);
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v->setInteractive(true);
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v->setRubberBandSelectionMode(Qt::IntersectsItemBoundingRect);
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for (int u = 0; u < 100; ++u)
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for (int n = 0; n < 100; ++n) {
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MyGraphicsItem *item = new MyGraphicsItem();
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item->setRect(QRectF(n * 80.0, u * 80.0, 50.0, 20.0));
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s.addItem(item);
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}
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w.show();
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app.exec();
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return 0;
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}
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#include "rubberbandtest.moc"
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