polarchartvalueaxisangular.cpp
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r2854 | /**************************************************************************** | ||
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r2483 | ** | ||
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r2854 | ** Copyright (C) 2016 The Qt Company Ltd. | ||
** Contact: https://www.qt.io/licensing/ | ||||
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r2483 | ** | ||
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r2854 | ** This file is part of the Qt Charts module of the Qt Toolkit. | ||
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r2483 | ** | ||
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r2854 | ** $QT_BEGIN_LICENSE:GPL$ | ||
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r2845 | ** Commercial License Usage | ||
** Licensees holding valid commercial Qt licenses may use this file in | ||||
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** Software or, alternatively, in accordance with the terms contained in | ||||
** a written agreement between you and The Qt Company. For licensing terms | ||||
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r2854 | ** and conditions see https://www.qt.io/terms-conditions. For further | ||
** information use the contact form at https://www.qt.io/contact-us. | ||||
** | ||||
** GNU General Public License Usage | ||||
** Alternatively, this file may be used under the terms of the GNU | ||||
** General Public License version 3 or (at your option) any later version | ||||
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** included in the packaging of this file. Please review the following | ||||
** information to ensure the GNU General Public License requirements will | ||||
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r2483 | ** | ||
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r2845 | ** $QT_END_LICENSE$ | ||
** | ||||
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r2854 | ****************************************************************************/ | ||
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r2483 | |||
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r2714 | #include <private/polarchartvalueaxisangular_p.h> | ||
#include <private/chartpresenter_p.h> | ||||
#include <private/abstractchartlayout_p.h> | ||||
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r2712 | QT_CHARTS_BEGIN_NAMESPACE | ||
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PolarChartValueAxisAngular::PolarChartValueAxisAngular(QValueAxis *axis, QGraphicsItem *item) | ||||
: PolarChartAxisAngular(axis, item) | ||||
{ | ||||
QObject::connect(axis, SIGNAL(tickCountChanged(int)), this, SLOT(handleTickCountChanged(int))); | ||||
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r2795 | QObject::connect(axis, SIGNAL(minorTickCountChanged(int)), | ||
this, SLOT(handleMinorTickCountChanged(int))); | ||||
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r2483 | QObject::connect(axis, SIGNAL(labelFormatChanged(QString)), this, SLOT(handleLabelFormatChanged(QString))); | ||
} | ||||
PolarChartValueAxisAngular::~PolarChartValueAxisAngular() | ||||
{ | ||||
} | ||||
QVector<qreal> PolarChartValueAxisAngular::calculateLayout() const | ||||
{ | ||||
int tickCount = static_cast<QValueAxis *>(axis())->tickCount(); | ||||
Q_ASSERT(tickCount >= 2); | ||||
QVector<qreal> points; | ||||
points.resize(tickCount); | ||||
const qreal d = 360.0 / qreal(tickCount - 1); | ||||
for (int i = 0; i < tickCount; ++i) { | ||||
qreal angularCoordinate = qreal(i) * d; | ||||
points[i] = angularCoordinate; | ||||
} | ||||
return points; | ||||
} | ||||
void PolarChartValueAxisAngular::createAxisLabels(const QVector<qreal> &layout) | ||||
{ | ||||
QStringList labelList = createValueLabels(min(), max(), layout.size(), static_cast<QValueAxis *>(axis())->labelFormat()); | ||||
setLabels(labelList); | ||||
} | ||||
void PolarChartValueAxisAngular::handleTickCountChanged(int tick) | ||||
{ | ||||
Q_UNUSED(tick); | ||||
QGraphicsLayoutItem::updateGeometry(); | ||||
if (presenter()) | ||||
presenter()->layout()->invalidate(); | ||||
} | ||||
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r2795 | void PolarChartValueAxisAngular::handleMinorTickCountChanged(int tick) | ||
{ | ||||
Q_UNUSED(tick); | ||||
QGraphicsLayoutItem::updateGeometry(); | ||||
if (presenter()) | ||||
presenter()->layout()->invalidate(); | ||||
} | ||||
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r2483 | void PolarChartValueAxisAngular::handleLabelFormatChanged(const QString &format) | ||
{ | ||||
Q_UNUSED(format); | ||||
QGraphicsLayoutItem::updateGeometry(); | ||||
if (presenter()) | ||||
presenter()->layout()->invalidate(); | ||||
} | ||||
#include "moc_polarchartvalueaxisangular_p.cpp" | ||||
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r2712 | QT_CHARTS_END_NAMESPACE | ||