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Diffstat (limited to 'src/charts/axis/datetimeaxis/polarchartdatetimeaxisangular.cpp')
-rw-r--r-- | src/charts/axis/datetimeaxis/polarchartdatetimeaxisangular.cpp | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/src/charts/axis/datetimeaxis/polarchartdatetimeaxisangular.cpp b/src/charts/axis/datetimeaxis/polarchartdatetimeaxisangular.cpp new file mode 100644 index 00000000..4ace5de6 --- /dev/null +++ b/src/charts/axis/datetimeaxis/polarchartdatetimeaxisangular.cpp @@ -0,0 +1,80 @@ +/**************************************************************************** +** +** Copyright (C) 2014 Digia Plc +** All rights reserved. +** For any questions to Digia, please use contact form at http://qt.digia.com +** +** This file is part of the Qt Enterprise Charts Add-on. +** +** $QT_BEGIN_LICENSE$ +** Licensees holding valid Qt Enterprise licenses may use this file in +** accordance with the Qt Enterprise License Agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Digia. +** +** If you have questions regarding the use of this file, please use +** contact form at http://qt.digia.com +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "polarchartdatetimeaxisangular_p.h" +#include "chartpresenter_p.h" +#include "abstractchartlayout_p.h" +#include "qdatetimeaxis.h" + +QT_CHARTS_BEGIN_NAMESPACE + +PolarChartDateTimeAxisAngular::PolarChartDateTimeAxisAngular(QDateTimeAxis *axis, QGraphicsItem *item) + : PolarChartAxisAngular(axis, item) +{ + QObject::connect(axis, SIGNAL(tickCountChanged(int)), this, SLOT(handleTickCountChanged(int))); + QObject::connect(axis, SIGNAL(formatChanged(QString)), this, SLOT(handleFormatChanged(QString))); +} + +PolarChartDateTimeAxisAngular::~PolarChartDateTimeAxisAngular() +{ +} + +QVector<qreal> PolarChartDateTimeAxisAngular::calculateLayout() const +{ + int tickCount = static_cast<QDateTimeAxis *>(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 PolarChartDateTimeAxisAngular::createAxisLabels(const QVector<qreal> &layout) +{ + QStringList labelList = createDateTimeLabels(min(), max(), layout.size(), static_cast<QDateTimeAxis *>(axis())->format()); + setLabels(labelList); +} + +void PolarChartDateTimeAxisAngular::handleTickCountChanged(int tick) +{ + Q_UNUSED(tick); + QGraphicsLayoutItem::updateGeometry(); + if (presenter()) + presenter()->layout()->invalidate(); +} + +void PolarChartDateTimeAxisAngular::handleFormatChanged(const QString &format) +{ + Q_UNUSED(format); + QGraphicsLayoutItem::updateGeometry(); + if (presenter()) + presenter()->layout()->invalidate(); +} + +#include "moc_polarchartdatetimeaxisangular_p.cpp" + +QT_CHARTS_END_NAMESPACE |