| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the test suite of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:GPL-EXCEPT$ |
| ** Commercial License Usage |
| ** Licensees holding valid commercial Qt licenses may use this file in |
| ** accordance with the commercial license agreement provided with the |
| ** Software or, alternatively, in accordance with the terms contained in |
| ** a written agreement between you and The Qt Company. For licensing terms |
| ** and conditions see https://www.qt.io/terms-conditions. For further |
| ** information use the contact form at https://www.qt.io/contact-us. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 3 as published by the Free Software |
| ** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT |
| ** included in the packaging of this file. Please review the following |
| ** information to ensure the GNU General Public License requirements will |
| ** be met: https://www.gnu.org/licenses/gpl-3.0.html. |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #include <QtCore> |
| #include <QtWidgets> |
| |
| class ColorWidget : public QWidget |
| { |
| QColor color; |
| int s; |
| int v; |
| |
| void changeColor() |
| { |
| color.setHsv(QRandomGenerator::global()->bounded(50) + 200, s, s); |
| } |
| |
| public: |
| ColorWidget() |
| { |
| s = 150; |
| v = 150; |
| changeColor(); |
| setMouseTracking(true); |
| } |
| |
| void mousePressEvent(QMouseEvent *) |
| { |
| changeColor(); |
| update(); |
| } |
| |
| void mouseMoveEvent(QMouseEvent *) |
| { |
| changeColor(); |
| update(); |
| } |
| |
| void enterEvent(QEvent *) |
| { |
| s = 200; |
| v = 200; |
| changeColor(); |
| update(); |
| } |
| |
| void leaveEvent(QEvent *) |
| { |
| s = 75; |
| v = 75; |
| changeColor(); |
| update(); |
| } |
| |
| void paintEvent(QPaintEvent *){ |
| QPainter p(this); |
| p.fillRect(QRect(QPoint(0, 0), size()), QBrush(color)); |
| } |
| }; |
| |
| |
| int main(int argc, char *argv[]) |
| { |
| QApplication app(argc, argv); |
| |
| ColorWidget window; |
| |
| QWidget *w1 = new ColorWidget; |
| QWidget *w2 = new ColorWidget; |
| QWidget *w3 = new ColorWidget; |
| |
| QHBoxLayout *layout = new QHBoxLayout; |
| layout->addWidget(w1); |
| layout->addWidget(w2); |
| layout->addWidget(w3); |
| |
| QWidget *w3_1 = new ColorWidget; |
| QWidget *w3_2 = new ColorWidget; |
| QWidget *w3_3 = new ColorWidget; |
| |
| QVBoxLayout *layout3 = new QVBoxLayout; |
| layout3->setMargin(0); |
| layout3->addWidget(w3_1); |
| layout3->addWidget(w3_2); |
| layout3->addWidget(w3_3); |
| w3->setLayout(layout3); |
| |
| window.setLayout(layout); |
| |
| bool native = 1; |
| |
| if (native) { |
| w1->winId(); |
| w2->winId(); |
| w3->winId(); |
| |
| w3_1->winId(); |
| w3_2->winId(); |
| w3_3->winId(); |
| } |
| |
| window.resize(640, 480); |
| window.show(); |
| |
| return app.exec(); |
| } |
| |
| |
| |