infinitegrid.cpp

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// Copyright (C) 2022 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
 
#include "infinitegrid_p.h"
#include <QtQuick3D/private/qquick3dviewport_p.h>
 
QT_BEGIN_NAMESPACE
 
QQuick3DInfiniteGrid::QQuick3DInfiniteGrid()
{
}
 
QQuick3DInfiniteGrid::~QQuick3DInfiniteGrid()
{
}
 
bool QQuick3DInfiniteGrid::visible() const
{
    return m_visible;
}
 
void QQuick3DInfiniteGrid::setVisible(bool newVisible)
{
    if (m_visible == newVisible)
        return;
    m_visible = newVisible;
    emit visibleChanged();
    if (m_sceneEnv)
        m_sceneEnv->setGridEnabled(m_visible);
}
 
float QQuick3DInfiniteGrid::gridInterval() const
{
    return m_gridInterval;
}
 
void QQuick3DInfiniteGrid::setGridInterval(float newGridInterval)
{
    if (qFuzzyCompare(m_gridInterval, newGridInterval))
        return;
    m_gridInterval = newGridInterval;
    emit gridIntervalChanged();
    if (m_sceneEnv && !qFuzzyIsNull(m_gridInterval))
        m_sceneEnv->setGridScale(0.1 / m_gridInterval);
}
 
void QQuick3DInfiniteGrid::componentComplete()
{
    m_componentComplete = true;
    auto *p = parent();
    QQuick3DSceneEnvironment *sceneEnv = nullptr;
    while (p && !sceneEnv) {
        sceneEnv = qobject_cast<QQuick3DSceneEnvironment *>(p);
        p = p->parent();
    }
    if (sceneEnv) {
        m_sceneEnv = sceneEnv;
        Q_ASSERT(m_sceneEnv);
        m_sceneEnv->setGridEnabled(m_visible);
        if (!qFuzzyIsNull(m_gridInterval))
            m_sceneEnv->setGridScale(0.1 / m_gridInterval);
        updateGridFlags();
    } else {
        qWarning("InfiniteGrid needs to be a child of SceneEnvironment.");
    }
}
 
void QQuick3DInfiniteGrid::classBegin()
{
}
 
bool QQuick3DInfiniteGrid::gridAxes() const
{
    return m_gridAxes;
}
 
void QQuick3DInfiniteGrid::setGridAxes(bool newGridAxes)
{
    if (m_gridAxes == newGridAxes)
        return;
    m_gridAxes = newGridAxes;
    emit gridAxesChanged();
    if (m_sceneEnv)
        updateGridFlags();
}
 
void QQuick3DInfiniteGrid::updateGridFlags()
{
    enum GridFlags { NoFlag = 0, DrawAxis = 1 };
    uint newFlags = m_gridAxes ? DrawAxis : NoFlag;
    m_sceneEnv->setGridFlags(newFlags);
}
 
QT_END_NAMESPACE