polarchartlayout.cpp
80 lines
| 2.6 KiB
| text/x-c
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Miikka Heikkinen
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r2483 | /**************************************************************************** | ||
| ** | ||||
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r2688 | ** Copyright (C) 2014 Digia Plc | ||
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r2483 | ** All rights reserved. | ||
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r2740 | ** For any questions to Digia, please use contact form at http://qt.io | ||
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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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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 | ||||
| ** agreement between you and Digia. | ||||
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r2483 | ** | ||
| ** If you have questions regarding the use of this file, please use | ||||
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r2740 | ** contact form at http://qt.io | ||
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r2483 | ** | ||
| ****************************************************************************/ | ||||
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r2714 | #include <private/polarchartlayout_p.h> | ||
| #include <private/chartpresenter_p.h> | ||||
| #include <private/polarchartaxis_p.h> | ||||
| #include <QtCore/QDebug> | ||||
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r2483 | |||
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r2712 | QT_CHARTS_BEGIN_NAMESPACE | ||
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r2483 | |||
| static const qreal golden_ratio = 0.4; | ||||
| PolarChartLayout::PolarChartLayout(ChartPresenter *presenter) | ||||
| : AbstractChartLayout(presenter) | ||||
| { | ||||
| } | ||||
| PolarChartLayout::~PolarChartLayout() | ||||
| { | ||||
| } | ||||
| QRectF PolarChartLayout::calculateAxisGeometry(const QRectF &geometry, const QList<ChartAxisElement *> &axes) const | ||||
| { | ||||
| // How to handle multiple angular/radial axes? | ||||
| qreal axisRadius = geometry.height() / 2.0; | ||||
| if (geometry.width() < geometry.height()) | ||||
| axisRadius = geometry.width() / 2.0; | ||||
| int titleHeight = 0; | ||||
| foreach (ChartAxisElement *chartAxis, axes) { | ||||
| if (!chartAxis->isVisible()) | ||||
| continue; | ||||
| PolarChartAxis *polarChartAxis = static_cast<PolarChartAxis *>(chartAxis); | ||||
| qreal radius = polarChartAxis->preferredAxisRadius(geometry.size()); | ||||
| if (radius < axisRadius) | ||||
| axisRadius = radius; | ||||
| if (chartAxis->axis()->orientation() == Qt::Horizontal | ||||
| && chartAxis->axis()->isTitleVisible() | ||||
| && !chartAxis->axis()->titleText().isEmpty()) { | ||||
| // If axis has angular title, adjust geometry down by the space title takes | ||||
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r2539 | QRectF dummyRect = ChartPresenter::textBoundingRect(chartAxis->axis()->titleFont(), chartAxis->axis()->titleText()); | ||
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r2530 | titleHeight = (dummyRect.height() / 2.0) + chartAxis->titlePadding(); | ||
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r2483 | } | ||
| } | ||||
| QRectF axisRect; | ||||
| axisRect.setSize(QSizeF(axisRadius * 2.0, axisRadius * 2.0)); | ||||
| axisRect.moveCenter(geometry.center()); | ||||
| axisRect.adjust(0, titleHeight, 0, titleHeight); | ||||
| foreach (ChartAxisElement *chartAxis, axes) | ||||
| chartAxis->setGeometry(axisRect, QRectF()); | ||||
| return axisRect; | ||||
| } | ||||
| QRectF PolarChartLayout::calculateAxisMinimum(const QRectF &minimum, const QList<ChartAxisElement *> &axes) const | ||||
| { | ||||
| Q_UNUSED(axes); | ||||
| return minimum; | ||||
| } | ||||
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r2712 | QT_CHARTS_END_NAMESPACE | ||