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// Copyright (C) 2024 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#include "minortickmarkcontainer.h"
#include <QLoggingCategory>
#include <QQmlInfo>
QT_BEGIN_NAMESPACE
Q_LOGGING_CATEGORY(positionAt, "qt.quick.tests.gauge.minortickmarkcontainer");
MinorTickmarkContainer::MinorTickmarkContainer(QQuickItem *parent)
: TickmarkContainer(parent)
{
}
qreal MinorTickmarkContainer::tickmarkWidth() const
{
return mTickmarkWidth;
}
void MinorTickmarkContainer::setTickmarkWidth(qreal tickmarkWidth)
{
if (qFuzzyCompare(mTickmarkWidth, tickmarkWidth))
return;
mTickmarkWidth = tickmarkWidth;
makeDirtyAndPolish(DelegateItemDirtyFlag::GeometryDirty);
emit tickmarkWidthChanged();
}
int MinorTickmarkContainer::minorCount() const
{
return mMinorCount;
}
void MinorTickmarkContainer::setMinorCount(int minorCount)
{
if (mMinorCount == minorCount)
return;
mMinorCount = minorCount;
makeDirtyAndPolish(DelegateItemDirtyFlag::AllDirty);
emit minorCountChanged();
}
int MinorTickmarkContainer::totalDelegateItemCount() const
{
return (mCount - 1) * mMinorCount;
}
qreal MinorTickmarkContainer::valueForDelegateItemAt(int index) const
{
const int tickmarkIndex = qFloor(index / mMinorCount);
const qreal minorTickmarkStepSize = mValueRange->stepSize() / (mMinorCount + 1);
return index * minorTickmarkStepSize + minorTickmarkStepSize * tickmarkIndex + minorTickmarkStepSize + mValueRange->minimumValue();
}
QPointF MinorTickmarkContainer::positionForDelegateItemAt(int index) const
{
const auto *delegateItem = mDelegateItems.at(index);
const bool vertical = isVertical();
const qreal tickmarkSpacing = spacing();
// We start from the bottom for vertical orientations.
if (vertical)
index = totalDelegateItemCount() - 1 - index;
// Index within a 0 to 1 range.
const qreal normalisedPosition = index / static_cast<qreal>(mMinorCount);
// Position relative to our major tickmark.
const qreal relativePosition = (index % mMinorCount + 1) * (tickmarkSpacing / (mMinorCount + 1));
// The position of our major tickmark.
const qreal clusterOffset = qFloor(normalisedPosition) * tickmarkSpacing;
// The size of
const qreal delegateSize = vertical ? delegateItem->height() : delegateItem->width();
const qreal position = clusterOffset + relativePosition - delegateSize / 2;
qDebug(positionAt) << "index" << index
<< "normalisedPosition" << normalisedPosition
<< "relativePosition" << relativePosition
<< "clusterOffset" << clusterOffset
<< "totalDelegateItemCount" << totalDelegateItemCount()
<< "minorTickmarkCount" << mMinorCount
<< "tickmarkWidth" << mTickmarkWidth
<< "tickmarkSpacing" << tickmarkSpacing
<< "cw" << width()
<< "ch" << height()
<< "dw" << delegateItem->width()
<< "dh" << delegateItem->height()
<< "position" << position;
return QPointF(vertical ? 0 : position, vertical ? position : 0);
}
QT_END_NAMESPACE
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