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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include "renderarea.h"
#include <QPainter>
//! [0]
RenderArea::RenderArea(const QPainterPath &path, QWidget *parent)
: QWidget(parent), path(path)
{
penWidth = 1;
rotationAngle = 0;
setBackgroundRole(QPalette::Base);
}
//! [0]
//! [1]
QSize RenderArea::minimumSizeHint() const
{
return QSize(50, 50);
}
//! [1]
//! [2]
QSize RenderArea::sizeHint() const
{
return QSize(100, 100);
}
//! [2]
//! [3]
void RenderArea::setFillRule(Qt::FillRule rule)
{
path.setFillRule(rule);
update();
}
//! [3]
//! [4]
void RenderArea::setFillGradient(const QColor &color1, const QColor &color2)
{
fillColor1 = color1;
fillColor2 = color2;
update();
}
//! [4]
//! [5]
void RenderArea::setPenWidth(int width)
{
penWidth = width;
update();
}
//! [5]
//! [6]
void RenderArea::setPenColor(const QColor &color)
{
penColor = color;
update();
}
//! [6]
//! [7]
void RenderArea::setRotationAngle(int degrees)
{
rotationAngle = degrees;
update();
}
//! [7]
//! [8]
void RenderArea::paintEvent(QPaintEvent *)
{
QPainter painter(this);
painter.setRenderHint(QPainter::Antialiasing);
//! [8] //! [9]
painter.scale(width() / 100.0, height() / 100.0);
painter.translate(50.0, 50.0);
painter.rotate(-rotationAngle);
painter.translate(-50.0, -50.0);
//! [9] //! [10]
painter.setPen(QPen(penColor, penWidth, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin));
QLinearGradient gradient(0, 0, 0, 100);
gradient.setColorAt(0.0, fillColor1);
gradient.setColorAt(1.0, fillColor2);
painter.setBrush(gradient);
painter.drawPath(path);
}
//! [10]
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