polarchartvalueaxisangular.cpp
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| 2.8 KiB
| text/x-c
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r2845 | /****************************************************************************** | ||
Miikka Heikkinen
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r2483 | ** | ||
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r2845 | ** Copyright (C) 2015 The Qt Company Ltd. | ||
| ** Contact: http://www.qt.io/licensing/ | ||||
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r2483 | ** | ||
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r2740 | ** This file is part of the Qt Charts module. | ||
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r2483 | ** | ||
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r2845 | ** $QT_BEGIN_LICENSE:COMM$ | ||
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r2483 | ** | ||
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r2845 | ** 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 http://www.qt.io/terms-conditions. For further | ||||
| ** information use the contact form at http://www.qt.io/contact-us. | ||||
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r2483 | ** | ||
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r2845 | ** $QT_END_LICENSE$ | ||
| ** | ||||
| ******************************************************************************/ | ||||
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r2483 | |||
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r2714 | #include <private/polarchartvalueaxisangular_p.h> | ||
| #include <private/chartpresenter_p.h> | ||||
| #include <private/abstractchartlayout_p.h> | ||||
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r2712 | QT_CHARTS_BEGIN_NAMESPACE | ||
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| PolarChartValueAxisAngular::PolarChartValueAxisAngular(QValueAxis *axis, QGraphicsItem *item) | ||||
| : PolarChartAxisAngular(axis, item) | ||||
| { | ||||
| QObject::connect(axis, SIGNAL(tickCountChanged(int)), this, SLOT(handleTickCountChanged(int))); | ||||
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r2795 | QObject::connect(axis, SIGNAL(minorTickCountChanged(int)), | ||
| this, SLOT(handleMinorTickCountChanged(int))); | ||||
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r2483 | QObject::connect(axis, SIGNAL(labelFormatChanged(QString)), this, SLOT(handleLabelFormatChanged(QString))); | ||
| } | ||||
| PolarChartValueAxisAngular::~PolarChartValueAxisAngular() | ||||
| { | ||||
| } | ||||
| QVector<qreal> PolarChartValueAxisAngular::calculateLayout() const | ||||
| { | ||||
| int tickCount = static_cast<QValueAxis *>(axis())->tickCount(); | ||||
| Q_ASSERT(tickCount >= 2); | ||||
| QVector<qreal> points; | ||||
| points.resize(tickCount); | ||||
| const qreal d = 360.0 / qreal(tickCount - 1); | ||||
| for (int i = 0; i < tickCount; ++i) { | ||||
| qreal angularCoordinate = qreal(i) * d; | ||||
| points[i] = angularCoordinate; | ||||
| } | ||||
| return points; | ||||
| } | ||||
| void PolarChartValueAxisAngular::createAxisLabels(const QVector<qreal> &layout) | ||||
| { | ||||
| QStringList labelList = createValueLabels(min(), max(), layout.size(), static_cast<QValueAxis *>(axis())->labelFormat()); | ||||
| setLabels(labelList); | ||||
| } | ||||
| void PolarChartValueAxisAngular::handleTickCountChanged(int tick) | ||||
| { | ||||
| Q_UNUSED(tick); | ||||
| QGraphicsLayoutItem::updateGeometry(); | ||||
| if (presenter()) | ||||
| presenter()->layout()->invalidate(); | ||||
| } | ||||
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r2795 | void PolarChartValueAxisAngular::handleMinorTickCountChanged(int tick) | ||
| { | ||||
| Q_UNUSED(tick); | ||||
| QGraphicsLayoutItem::updateGeometry(); | ||||
| if (presenter()) | ||||
| presenter()->layout()->invalidate(); | ||||
| } | ||||
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r2483 | void PolarChartValueAxisAngular::handleLabelFormatChanged(const QString &format) | ||
| { | ||||
| Q_UNUSED(format); | ||||
| QGraphicsLayoutItem::updateGeometry(); | ||||
| if (presenter()) | ||||
| presenter()->layout()->invalidate(); | ||||
| } | ||||
| #include "moc_polarchartvalueaxisangular_p.cpp" | ||||
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r2712 | QT_CHARTS_END_NAMESPACE | ||