| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the Qt Charts module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:GPL$ |
| ** Commercial License Usage |
| ** Licensees holding valid commercial Qt licenses may use this file in |
| ** accordance with the commercial license agreement provided with the |
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| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 3 or (at your option) any later version |
| ** approved by the KDE Free Qt Foundation. The licenses are as published by |
| ** the Free Software Foundation and appearing in the file LICENSE.GPL3 |
| ** included in the packaging of this file. Please review the following |
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| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #include <private/polarchartvalueaxisradial_p.h> |
| #include <private/chartpresenter_p.h> |
| #include <private/abstractchartlayout_p.h> |
| |
| QT_CHARTS_BEGIN_NAMESPACE |
| |
| PolarChartValueAxisRadial::PolarChartValueAxisRadial(QValueAxis *axis, QGraphicsItem *item) |
| : PolarChartAxisRadial(axis, item) |
| { |
| QObject::connect(axis, SIGNAL(tickCountChanged(int)), this, SLOT(handleTickCountChanged(int))); |
| QObject::connect(axis, SIGNAL(minorTickCountChanged(int)), |
| this, SLOT(handleMinorTickCountChanged(int))); |
| QObject::connect(axis, SIGNAL(labelFormatChanged(QString)), this, SLOT(handleLabelFormatChanged(QString))); |
| } |
| |
| PolarChartValueAxisRadial::~PolarChartValueAxisRadial() |
| { |
| } |
| |
| QVector<qreal> PolarChartValueAxisRadial::calculateLayout() const |
| { |
| int tickCount = static_cast<QValueAxis *>(axis())->tickCount(); |
| Q_ASSERT(tickCount >= 2); |
| |
| QVector<qreal> points; |
| points.resize(tickCount); |
| |
| const qreal d = (axisGeometry().width() / 2) / qreal(tickCount - 1); |
| |
| for (int i = 0; i < tickCount; ++i) { |
| qreal radialCoordinate = qreal(i) * d; |
| points[i] = radialCoordinate; |
| } |
| |
| return points; |
| } |
| |
| void PolarChartValueAxisRadial::createAxisLabels(const QVector<qreal> &layout) |
| { |
| setLabels(createValueLabels(min(), max(), layout.size(), 0.0, 0.0, |
| QValueAxis::TicksFixed, |
| static_cast<QValueAxis *>(axis())->labelFormat())); |
| } |
| |
| void PolarChartValueAxisRadial::handleTickCountChanged(int tick) |
| { |
| Q_UNUSED(tick); |
| QGraphicsLayoutItem::updateGeometry(); |
| if (presenter()) |
| presenter()->layout()->invalidate(); |
| } |
| |
| void PolarChartValueAxisRadial::handleMinorTickCountChanged(int tick) |
| { |
| Q_UNUSED(tick); |
| QGraphicsLayoutItem::updateGeometry(); |
| if (presenter()) |
| presenter()->layout()->invalidate(); |
| } |
| |
| void PolarChartValueAxisRadial::handleLabelFormatChanged(const QString &format) |
| { |
| Q_UNUSED(format); |
| QGraphicsLayoutItem::updateGeometry(); |
| if (presenter()) |
| presenter()->layout()->invalidate(); |
| } |
| |
| QT_CHARTS_END_NAMESPACE |
| |
| #include "moc_polarchartvalueaxisradial_p.cpp" |