Revision control
++ // Copyright (C) 2016 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
++
++ #include <private/chartvalueaxisx_p.h>
++ #include <QtCharts/QAbstractAxis>
++ #include <private/chartpresenter_p.h>
++ #include <QtCharts/QValueAxis>
++ #include <private/abstractchartlayout_p.h>
++ #include <private/valueaxislabel_p.h>
++ #include <QtWidgets/QGraphicsLayout>
++ #include <QtCore/QtMath>
++ #include <QtCore/QDebug>
++
++
++ QT_BEGIN_NAMESPACE
++
++ ChartValueAxisX::ChartValueAxisX(QValueAxis *axis, QGraphicsItem *item)
++ : HorizontalAxis(axis, item),
++ m_axis(axis)
++ {
++ QObject::connect(m_axis, SIGNAL(tickCountChanged(int)), this, SLOT(handleTickCountChanged(int)));
++ QObject::connect(m_axis, SIGNAL(minorTickCountChanged(int)),
++ this, SLOT(handleMinorTickCountChanged(int)));
++ QObject::connect(m_axis, SIGNAL(labelFormatChanged(QString)), this, SLOT(handleLabelFormatChanged(QString)));
++ QObject::connect(m_axis, SIGNAL(tickIntervalChanged(qreal)), this, SLOT(handleTickIntervalChanged(qreal)));
++ QObject::connect(m_axis, SIGNAL(tickAnchorChanged(qreal)), this, SLOT(handleTickAnchorChanged(qreal)));
++ QObject::connect(m_axis, SIGNAL(tickTypeChanged(QValueAxis::TickType)), this,
++ SLOT(handleTickTypeChanged(QValueAxis::TickType)));
++ }
++
++ ChartValueAxisX::~ChartValueAxisX()
++ {
++ }
++
++ QList<qreal> ChartValueAxisX::calculateLayout() const
++ {
++ if (m_axis->tickType() == QValueAxis::TicksFixed) {
++ int tickCount = m_axis->tickCount();
++
++ Q_ASSERT(tickCount >= 2);
++
++ QList<qreal> points;
++ points.resize(tickCount);
++
++ const QRectF &gridRect = gridGeometry();
++ const qreal deltaX = gridRect.width() / (qreal(tickCount) - 1.0);
++ for (int i = 0; i < tickCount; ++i)
++ points[i] = qreal(i) * deltaX + gridRect.left();
++ return points;
++ } else { // QValueAxis::TicksDynamic
++ const qreal interval = m_axis->tickInterval();
++ const qreal anchor = m_axis->tickAnchor();
++ const qreal maxValue = max();
++ const qreal minValue = min();
++
++ // Find the first major tick right after the min of the range
++ const qreal ticksFromAnchor = (anchor - minValue) / interval;
++ const qreal firstMajorTick = anchor - std::floor(ticksFromAnchor) * interval;
++
++ const QRectF &gridRect = gridGeometry();
++ const qreal deltaX = gridRect.width() / (maxValue - minValue);
++
++ QList<qreal> points;
++ const qreal leftPos = gridRect.left();
++ qreal value = firstMajorTick;
++ while (value <= maxValue) {
++ points << (value - minValue) * deltaX + leftPos;
++ value += interval;
++ }
++
++ return points;
++ }
++ }
++
++ void ChartValueAxisX::updateGeometry()
++ {
++ const QList<qreal> &layout = ChartAxisElement::layout();
++ const QList<qreal> &dynamicMinorTicklayout = ChartAxisElement::dynamicMinorTicklayout();
++ if (layout.isEmpty() && dynamicMinorTicklayout.isEmpty())
++ return;
++ setLabels(createValueLabels(min(), max(), layout.size(), m_axis->tickInterval(),
++ m_axis->tickAnchor(), m_axis->tickType(), m_axis->labelFormat()));
++ HorizontalAxis::updateGeometry();
++ updateLabelsValues(m_axis);
++ }
++
++ void ChartValueAxisX::handleTickCountChanged(int tick)
++ {
++ Q_UNUSED(tick);
++ // AXIVION Next Line Qt-SkippedBaseMethod: not an override
++ QGraphicsLayoutItem::updateGeometry();
++ if (presenter()) presenter()->layout()->invalidate();
++ }
++
++ void ChartValueAxisX::handleMinorTickCountChanged(int tick)
++ {
++ Q_UNUSED(tick);
++ // AXIVION Next Line Qt-SkippedBaseMethod: not an override
++ QGraphicsLayoutItem::updateGeometry();
++ if (presenter())
++ presenter()->layout()->invalidate();
++ }
++
++ void ChartValueAxisX::handleLabelFormatChanged(const QString &format)
++ {
++ Q_UNUSED(format);
++ // AXIVION Next Line Qt-SkippedBaseMethod: not an override
++ QGraphicsLayoutItem::updateGeometry();
++ if (presenter()) presenter()->layout()->invalidate();
++ }
++
++ void ChartValueAxisX::handleTickIntervalChanged(qreal interval)
++ {
++ Q_UNUSED(interval);
++ // AXIVION Next Line Qt-SkippedBaseMethod: not an override
++ QGraphicsLayoutItem::updateGeometry();
++ if (presenter()) presenter()->layout()->invalidate();
++ }
++
++ void ChartValueAxisX::handleTickAnchorChanged(qreal anchor)
++ {
++ Q_UNUSED(anchor);
++ // AXIVION Next Line Qt-SkippedBaseMethod: not an override
++ QGraphicsLayoutItem::updateGeometry();
++ if (presenter()) presenter()->layout()->invalidate();
++ }
++
++ void ChartValueAxisX::handleTickTypeChanged(QValueAxis::TickType type)
++ {
++ Q_UNUSED(type);
++ // AXIVION Next Line Qt-SkippedBaseMethod: not an override
++ QGraphicsLayoutItem::updateGeometry();
++ if (presenter()) presenter()->layout()->invalidate();
++ }
++
++ QSizeF ChartValueAxisX::sizeHint(Qt::SizeHint which, const QSizeF &constraint) const
++ {
++ Q_UNUSED(constraint);
++
++ QSizeF sh;
++
++ QSizeF base = HorizontalAxis::sizeHint(which, constraint);
++ const QStringList ticksList =
++ createValueLabels(min(), max(), m_axis->tickCount(), m_axis->tickInterval(),
++ m_axis->tickAnchor(), m_axis->tickType(), m_axis->labelFormat());
++ // Width of horizontal axis sizeHint indicates the maximum distance labels can extend past
++ // first and last ticks. Base width is irrelevant.
++ qreal width = 0;
++ qreal height = 0;
++
++ switch (which) {
++ case Qt::MinimumSize: {
++ if (labelsVisible()) {
++ QRectF boundingRect = ChartPresenter::textBoundingRect(axis()->labelsFont(),
++ QStringLiteral("..."),
++ axis()->labelsAngle());
++ width = boundingRect.width() / 2.0;
++ height = boundingRect.height() + labelPadding() + base.height() + 1.0;
++ } else {
++ width = 0;
++ height = base.height() + 1.0;
++ }
++ sh = QSizeF(width, height);
++ break;
++ }
++ case Qt::PreferredSize: {
++ if (labelsVisible()) {
++ qreal labelHeight = 0.0;
++ qreal firstWidth = -1.0;
++ for (const QString &s : ticksList) {
++ QRectF rect = ChartPresenter::textBoundingRect(axis()->labelsFont(), s, axis()->labelsAngle());
++ labelHeight = qMax(rect.height(), labelHeight);
++ width = rect.width();
++ if (firstWidth < 0.0)
++ firstWidth = width;
++ }
++ height = labelHeight + labelPadding() + base.height() + 1.0;
++ width = qMax(width, firstWidth) / 2.0;
++ } else {
++ height = base.height() + 1.0;
++ width = 0;
++ }
++ sh = QSizeF(width, height);
++ break;
++ }
++ default:
++ break;
++ }
++ return sh;
++ }
++
++ QT_END_NAMESPACE
++
++ #include "moc_chartvalueaxisx_p.cpp"