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++ // Copyright (C) 2016 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
++
++ #include <private/chartbarcategoryaxisx_p.h>
++ #include <private/chartpresenter_p.h>
++ #include <private/qbarcategoryaxis_p.h>
++ #include <private/abstractchartlayout_p.h>
++ #include <QtCore/QDebug>
++ #include <QtCore/QtMath>
++
++ QT_BEGIN_NAMESPACE
++
++ ChartBarCategoryAxisX::ChartBarCategoryAxisX(QBarCategoryAxis *axis, QGraphicsItem* item)
++ : HorizontalAxis(axis, item, true),
++ m_categoriesAxis(axis)
++ {
++ QObject::connect(m_categoriesAxis,SIGNAL(categoriesChanged()),this, SLOT(handleCategoriesChanged()));
++ handleCategoriesChanged();
++ }
++
++ ChartBarCategoryAxisX::~ChartBarCategoryAxisX()
++ {
++ }
++
++ QList<qreal> ChartBarCategoryAxisX::calculateLayout() const
++ {
++ QList<qreal> points;
++ const QRectF& gridRect = gridGeometry();
++ qreal range = max() - min();
++ const qreal delta = gridRect.width() / range;
++
++ if (delta < 2)
++ return points;
++
++ qreal adjustedMin = min() + 0.5;
++ qreal offset = (qRound(adjustedMin) - adjustedMin) * delta;
++
++ int count = qFloor(range);
++ if (count < 1)
++ return points;
++
++ points.resize(count + 2);
++
++ for (int i = 0; i < count + 2; ++i)
++ points[i] = offset + (qreal(i) * delta) + gridRect.left();
++
++ return points;
++ }
++
++ QStringList ChartBarCategoryAxisX::createCategoryLabels(const QList<qreal> &layout) const
++ {
++ QStringList result ;
++ const QRectF &gridRect = gridGeometry();
++ const qreal d = (max() - min()) / gridRect.width();
++
++ for (int i = 0; i < layout.size() - 1; ++i) {
++ int x = qFloor((((layout[i] + layout[i + 1]) / 2 - gridRect.left()) * d + min() + 0.5));
++ if (x < max() && (x >= 0) && x < m_categoriesAxis->categories().size()) {
++ result << m_categoriesAxis->categories().at(x);
++ } else {
++ // No label for x coordinate
++ result << QString();
++ }
++ }
++ result << QString();
++ return result;
++ }
++
++
++ void ChartBarCategoryAxisX::updateGeometry()
++ {
++ const QList<qreal> &layout = ChartAxisElement::layout();
++ if (layout.isEmpty())
++ return;
++ setLabels(createCategoryLabels(layout));
++ HorizontalAxis::updateGeometry();
++ }
++
++ void ChartBarCategoryAxisX::handleCategoriesChanged()
++ {
++ // AXIVION Next Line Qt-SkippedBaseMethod: not an override
++ QGraphicsLayoutItem::updateGeometry();
++ if(presenter()) presenter()->layout()->invalidate();
++ }
++
++ QSizeF ChartBarCategoryAxisX::sizeHint(Qt::SizeHint which, const QSizeF &constraint) const
++ {
++ Q_UNUSED(constraint);
++
++ QSizeF sh;
++ QSizeF base = HorizontalAxis::sizeHint(which, constraint);
++ const QStringList ticksList = m_categoriesAxis->categories();
++
++ qreal width = 0; // Width is irrelevant for X axes with interval labels
++ qreal height = 0;
++
++ switch (which) {
++ case Qt::MinimumSize: {
++ if (labelsVisible()) {
++ QRectF boundingRect = ChartPresenter::textBoundingRect(axis()->labelsFont(),
++ QStringLiteral("..."),
++ axis()->labelsAngle());
++ height = boundingRect.height() + labelPadding() + base.height() + 1.0;
++ } else {
++ height = base.height() + 1.0;
++ }
++ sh = QSizeF(width, height);
++ break;
++ }
++ case Qt::PreferredSize:{
++ if (labelsVisible()) {
++ qreal labelHeight = 0.0;
++ for (const QString &s : ticksList) {
++ QRectF rect = ChartPresenter::textBoundingRect(axis()->labelsFont(), s, axis()->labelsAngle());
++ labelHeight = qMax(rect.height(), labelHeight);
++ }
++ height = labelHeight + labelPadding() + base.height() + 1.0;
++ } else {
++ height = base.height() + 1.0;
++ }
++ sh = QSizeF(width, height);
++ break;
++ }
++ default:
++ break;
++ }
++ return sh;
++ }
++
++ QT_END_NAMESPACE
++
++ #include "moc_chartbarcategoryaxisx_p.cpp"