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Fix empty domain detection...
Fix empty domain detection Instead of using qFuzzyIsNull to detect if domain is empty use qFuzzyCompare. This will make it possible to draw axises with small ranges. Change-Id: Iea39f74e3eb317f20aab3061cd942cafca9ef08a Task-number: QTRD-3296 Reviewed-by: Miikka Heikkinen <miikka.heikkinen@digia.com>
Titta Heikkala - - Load All Authors

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r2688:bdd8266c9c7d
r2711:76339f714f08
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polarchartlayout.cpp
82 lines | 2.7 KiB | text/x-c | CppLexer
/ src / layout / polarchartlayout.cpp
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Miikka Heikkinen
Add Polar chart support...
 r2483 /****************************************************************************
**
Titta Heikkala
Update copyright year...
 r2688 ** Copyright (C) 2014 Digia Plc
Miikka Heikkinen
Add Polar chart support...
 r2483 ** All rights reserved.
** For any questions to Digia, please use contact form at http://qt.digia.com
**
Miikka Heikkinen
Qt Commercial -> Qt Enterprise...
 r2574 ** This file is part of the Qt Enterprise Charts Add-on.
Miikka Heikkinen
Add Polar chart support...
 r2483 **
** $QT_BEGIN_LICENSE$
Miikka Heikkinen
Qt Commercial -> Qt Enterprise...
 r2574 ** Licensees holding valid Qt Enterprise licenses may use this file in
** accordance with the Qt Enterprise License Agreement provided with the
Miikka Heikkinen
Add Polar chart support...
 r2483 ** 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 "polarchartlayout_p.h"
#include "chartpresenter_p.h"
#include "polarchartaxis_p.h"
#include <QDebug>
QTCOMMERCIALCHART_BEGIN_NAMESPACE
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
Miikka Heikkinen
Added HTML support for various text items...
 r2539 QRectF dummyRect = ChartPresenter::textBoundingRect(chartAxis->axis()->titleFont(), chartAxis->axis()->titleText());
Miikka Heikkinen
Fix multi-line axis titles....
 r2530 titleHeight = (dummyRect.height() / 2.0) + chartAxis->titlePadding();
Miikka Heikkinen
Add Polar chart support...
 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;
}
QTCOMMERCIALCHART_END_NAMESPACE