// Copyright (C) 2016 The Qt Company Ltd. // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause #include #include "renderarea.h" RenderArea::RenderArea(QBrush *brush, QWidget *parent) : QWidget(parent) { currentBrush = brush; } QSize RenderArea::minimumSizeHint() const { return QSize(120, 60); } void RenderArea::paintEvent(QPaintEvent *) { QPainter painter(this); painter.setPen(Qt::NoPen); painter.setRenderHint(QPainter::Antialiasing); if(currentBrush->style() == Qt::LinearGradientPattern) { currentBrush = new QBrush(QLinearGradient(0, 0, width(), 60)); } else if(currentBrush->style() == Qt::RadialGradientPattern) { QRadialGradient radial(width() / 2, 30, width() / 2, width() / 2, 30); radial.setColorAt(0, Qt::white); radial.setColorAt(1, Qt::black); currentBrush = new QBrush(radial); } else if(currentBrush->style() == Qt::ConicalGradientPattern) { currentBrush = new QBrush(QConicalGradient(width() / 2, 30, 90)); } painter.setBrush(*currentBrush); QPainterPath path; path.addRect(0, 0, parentWidget()->width(), 60); painter.drawPath(path); }