| 1 | // Copyright (C) 2016 The Qt Company Ltd. |
|---|---|
| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only |
| 3 | |
| 4 | #include <private/chartbackground_p.h> |
| 5 | #include <private/chartconfig_p.h> |
| 6 | #include <QtGui/QPen> |
| 7 | #include <QtGui/QBrush> |
| 8 | #include <QtGui/QPainter> |
| 9 | #include <QGraphicsDropShadowEffect> |
| 10 | |
| 11 | QT_BEGIN_NAMESPACE |
| 12 | |
| 13 | ChartBackground::ChartBackground(QGraphicsItem *parent) |
| 14 | : QGraphicsRectItem(parent), |
| 15 | m_diameter(5), |
| 16 | m_dropShadow(0) |
| 17 | { |
| 18 | setAcceptedMouseButtons({}); |
| 19 | } |
| 20 | |
| 21 | ChartBackground::~ChartBackground() |
| 22 | { |
| 23 | |
| 24 | } |
| 25 | |
| 26 | void ChartBackground::setDropShadowEnabled(bool enabled) |
| 27 | { |
| 28 | #ifdef QT_NO_GRAPHICSEFFECT |
| 29 | Q_UNUSED(enabled); |
| 30 | #else |
| 31 | if (enabled) { |
| 32 | if (!m_dropShadow) { |
| 33 | m_dropShadow = new QGraphicsDropShadowEffect(); |
| 34 | #ifdef Q_OS_MAC |
| 35 | m_dropShadow->setBlurRadius(15); |
| 36 | m_dropShadow->setOffset(0, 0); |
| 37 | #elif defined(Q_OS_WIN) |
| 38 | m_dropShadow->setBlurRadius(10); |
| 39 | m_dropShadow->setOffset(0, 0); |
| 40 | #else |
| 41 | m_dropShadow->setBlurRadius(10); |
| 42 | m_dropShadow->setOffset(dx: 5, dy: 5); |
| 43 | #endif |
| 44 | setGraphicsEffect(m_dropShadow); |
| 45 | } |
| 46 | } else { |
| 47 | delete m_dropShadow; |
| 48 | m_dropShadow = 0; |
| 49 | } |
| 50 | #endif |
| 51 | } |
| 52 | |
| 53 | void ChartBackground::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) |
| 54 | { |
| 55 | Q_UNUSED(option); |
| 56 | Q_UNUSED(widget); |
| 57 | painter->save(); |
| 58 | painter->setPen(pen()); |
| 59 | painter->setBrush(brush()); |
| 60 | painter->drawRoundedRect(rect: rect(), xRadius: m_diameter, yRadius: m_diameter); |
| 61 | painter->restore(); |
| 62 | } |
| 63 | |
| 64 | qreal ChartBackground::diameter() const |
| 65 | { |
| 66 | return m_diameter; |
| 67 | } |
| 68 | |
| 69 | void ChartBackground::setDiameter(qreal diameter) |
| 70 | { |
| 71 | m_diameter = diameter; |
| 72 | update(); |
| 73 | } |
| 74 | |
| 75 | QT_END_NAMESPACE |
| 76 |