polarchartcategoryaxisradial.cpp
77 lines
| 2.4 KiB
| text/x-c
|
CppLexer
Miikka Heikkinen
|
r2483 | /**************************************************************************** | ||
| ** | ||||
Titta Heikkala
|
r2776 | ** Copyright (C) 2015 The Qt Company Ltd | ||
|
Miikka Heikkinen
|
r2483 | ** All rights reserved. | ||
|
Titta Heikkala
|
r2776 | ** For any questions to The Qt Company, please use contact form at http://qt.io | ||
|
Miikka Heikkinen
|
r2483 | ** | ||
|
Titta Heikkala
|
r2740 | ** This file is part of the Qt Charts module. | ||
|
Miikka Heikkinen
|
r2483 | ** | ||
|
Titta Heikkala
|
r2740 | ** Licensees holding valid commercial license for Qt may use this file in | ||
| ** accordance with the Qt License Agreement provided with the Software | ||||
| ** or, alternatively, in accordance with the terms contained in a written | ||||
|
Titta Heikkala
|
r2776 | ** agreement between you and The Qt Company. | ||
|
Miikka Heikkinen
|
r2483 | ** | ||
| ** If you have questions regarding the use of this file, please use | ||||
|
Titta Heikkala
|
r2740 | ** contact form at http://qt.io | ||
|
Miikka Heikkinen
|
r2483 | ** | ||
| ****************************************************************************/ | ||||
|
Titta Heikkala
|
r2714 | #include <private/polarchartcategoryaxisradial_p.h> | ||
| #include <private/chartpresenter_p.h> | ||||
| #include <private/abstractchartlayout_p.h> | ||||
| #include <QtCharts/QCategoryAxis> | ||||
| #include <QtCore/QDebug> | ||||
|
Miikka Heikkinen
|
r2483 | |||
Titta Heikkala
|
r2712 | QT_CHARTS_BEGIN_NAMESPACE | ||
|
Miikka Heikkinen
|
r2483 | |||
| PolarChartCategoryAxisRadial::PolarChartCategoryAxisRadial(QCategoryAxis *axis, QGraphicsItem *item) | ||||
| : PolarChartAxisRadial(axis, item, true) | ||||
| { | ||||
| QObject::connect(axis, SIGNAL(categoriesChanged()), this, SLOT(handleCategoriesChanged())); | ||||
| } | ||||
| PolarChartCategoryAxisRadial::~PolarChartCategoryAxisRadial() | ||||
| { | ||||
| } | ||||
| QVector<qreal> PolarChartCategoryAxisRadial::calculateLayout() const | ||||
| { | ||||
| QCategoryAxis *catAxis = static_cast<QCategoryAxis *>(axis()); | ||||
| int tickCount = catAxis->categoriesLabels().count() + 1; | ||||
| QVector<qreal> points; | ||||
| if (tickCount < 2) | ||||
| return points; | ||||
| qreal range = max() - min(); | ||||
| if (range > 0) { | ||||
| points.resize(tickCount); | ||||
| qreal scale = (axisGeometry().width() / 2) / range; | ||||
| qreal angle; | ||||
| for (int i = 0; i < tickCount; ++i) { | ||||
| if (i < tickCount - 1) | ||||
| angle = (catAxis->startValue(catAxis->categoriesLabels().at(i)) - min()) * scale; | ||||
| else | ||||
| angle = (catAxis->endValue(catAxis->categoriesLabels().at(i - 1)) - min()) * scale; | ||||
| points[i] = angle; | ||||
| } | ||||
| } | ||||
| return points; | ||||
| } | ||||
| void PolarChartCategoryAxisRadial::createAxisLabels(const QVector<qreal> &layout) | ||||
| { | ||||
| Q_UNUSED(layout); | ||||
|
Titta Heikkala
|
r2712 | setLabels(static_cast<QCategoryAxis *>(axis())->categoriesLabels() << QString()); | ||
|
Miikka Heikkinen
|
r2483 | } | ||
| void PolarChartCategoryAxisRadial::handleCategoriesChanged() | ||||
| { | ||||
| QGraphicsLayoutItem::updateGeometry(); | ||||
| presenter()->layout()->invalidate(); | ||||
| } | ||||
| #include "moc_polarchartcategoryaxisradial_p.cpp" | ||||
|
Titta Heikkala
|
r2712 | QT_CHARTS_END_NAMESPACE | ||