diff options
Diffstat (limited to 'src/charts/axis/valueaxis/polarchartvalueaxisradial.cpp')
-rw-r--r-- | src/charts/axis/valueaxis/polarchartvalueaxisradial.cpp | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/src/charts/axis/valueaxis/polarchartvalueaxisradial.cpp b/src/charts/axis/valueaxis/polarchartvalueaxisradial.cpp new file mode 100644 index 00000000..006477e8 --- /dev/null +++ b/src/charts/axis/valueaxis/polarchartvalueaxisradial.cpp @@ -0,0 +1,79 @@ +/**************************************************************************** +** +** 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 "polarchartvalueaxisradial_p.h" +#include "chartpresenter_p.h" +#include "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(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(), static_cast<QValueAxis *>(axis())->labelFormat())); +} + +void PolarChartValueAxisRadial::handleTickCountChanged(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(); +} + +#include "moc_polarchartvalueaxisradial_p.cpp" + +QT_CHARTS_END_NAMESPACE |