0f39cfae93
This is a source incompatible change for widget implementors. Leaving the old enterEvent as a virtual overload is problematic due to shadowing. Best to make a clean cut, widget reimplementors will get a compile time warning if they mark their override as such, or if they try to call the parent class implementation. Addresses ### Qt 6 comment. [ChangeLog][QtWidgets][QWidget] The virtual enterEvent handler now receives a QEnterEvent, which contains information about mouse position and button states, rather than a plain QEvent. Change-Id: I233f594fd79c0c090983b3db8532913d00132fde Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io> Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io> Reviewed-by: Lars Knoll <lars.knoll@qt.io>
135 lines
3.0 KiB
C++
135 lines
3.0 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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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 <QtCore>
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#include <QtWidgets>
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class ColorWidget : public QWidget
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{
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QColor color;
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int s;
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int v;
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void changeColor()
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{
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color.setHsv(QRandomGenerator::global()->bounded(50) + 200, s, s);
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}
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public:
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ColorWidget()
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{
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s = 150;
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v = 150;
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changeColor();
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setMouseTracking(true);
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}
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void mousePressEvent(QMouseEvent *)
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{
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changeColor();
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update();
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}
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void mouseMoveEvent(QMouseEvent *)
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{
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changeColor();
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update();
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}
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void enterEvent(QEnterEvent *)
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{
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s = 200;
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v = 200;
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changeColor();
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update();
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}
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void leaveEvent(QEvent *)
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{
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s = 75;
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v = 75;
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changeColor();
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update();
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}
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void paintEvent(QPaintEvent *){
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QPainter p(this);
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p.fillRect(QRect(QPoint(0, 0), size()), QBrush(color));
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}
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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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ColorWidget window;
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QWidget *w1 = new ColorWidget;
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QWidget *w2 = new ColorWidget;
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QWidget *w3 = new ColorWidget;
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QHBoxLayout *layout = new QHBoxLayout;
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layout->addWidget(w1);
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layout->addWidget(w2);
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layout->addWidget(w3);
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QWidget *w3_1 = new ColorWidget;
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QWidget *w3_2 = new ColorWidget;
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QWidget *w3_3 = new ColorWidget;
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QVBoxLayout *layout3 = new QVBoxLayout;
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layout3->setMargin(0);
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layout3->addWidget(w3_1);
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layout3->addWidget(w3_2);
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layout3->addWidget(w3_3);
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w3->setLayout(layout3);
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window.setLayout(layout);
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bool native = 1;
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if (native) {
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w1->winId();
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w2->winId();
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w3->winId();
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w3_1->winId();
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w3_2->winId();
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w3_3->winId();
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}
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window.resize(640, 480);
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window.show();
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return app.exec();
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}
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