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29
30 #include <private/polarchartlayout_p.h>
31 #include <private/chartpresenter_p.h>
32 #include <private/polarchartaxis_p.h>
33 #include <QtCore/QDebug>
34
35 QT_CHARTS_BEGIN_NAMESPACE
36
PolarChartLayout(ChartPresenter * presenter)37 PolarChartLayout::PolarChartLayout(ChartPresenter *presenter)
38 : AbstractChartLayout(presenter)
39 {
40 }
41
~PolarChartLayout()42 PolarChartLayout::~PolarChartLayout()
43 {
44 }
45
calculateAxisGeometry(const QRectF & geometry,const QList<ChartAxisElement * > & axes,bool update) const46 QRectF PolarChartLayout::calculateAxisGeometry(const QRectF &geometry,
47 const QList<ChartAxisElement *> &axes,
48 bool update) const
49 {
50 // How to handle multiple angular/radial axes?
51 qreal axisRadius = geometry.height() / 2.0;
52 if (geometry.width() < geometry.height())
53 axisRadius = geometry.width() / 2.0;
54
55 int titleHeight = 0;
56 foreach (ChartAxisElement *chartAxis, axes) {
57 if (!chartAxis->isVisible())
58 continue;
59
60 PolarChartAxis *polarChartAxis = static_cast<PolarChartAxis *>(chartAxis);
61 qreal radius = polarChartAxis->preferredAxisRadius(geometry.size());
62 if (radius < axisRadius)
63 axisRadius = radius;
64
65 if (chartAxis->axis()->orientation() == Qt::Horizontal
66 && chartAxis->axis()->isTitleVisible()
67 && !chartAxis->axis()->titleText().isEmpty()) {
68 // If axis has angular title, adjust geometry down by the space title takes
69 QRectF dummyRect = ChartPresenter::textBoundingRect(chartAxis->axis()->titleFont(), chartAxis->axis()->titleText());
70 titleHeight = (dummyRect.height() / 2.0) + chartAxis->titlePadding();
71 }
72 }
73
74 QRectF axisRect;
75 axisRect.setSize(QSizeF(axisRadius * 2.0, axisRadius * 2.0));
76 axisRect.moveCenter(geometry.center());
77 axisRect.adjust(0, titleHeight, 0, titleHeight);
78
79 if (update) {
80 foreach (ChartAxisElement *chartAxis, axes)
81 chartAxis->setGeometry(axisRect, QRectF());
82 }
83
84 return axisRect;
85 }
86
calculateAxisMinimum(const QRectF & minimum,const QList<ChartAxisElement * > & axes) const87 QRectF PolarChartLayout::calculateAxisMinimum(const QRectF &minimum, const QList<ChartAxisElement *> &axes) const
88 {
89 Q_UNUSED(axes);
90 return minimum;
91 }
92
93 QT_CHARTS_END_NAMESPACE
94