C++ (Cpp) bottomRightChanged示例

示例#1

文件： qdeclarativerectanglemapitem.cpp 项目： amccarthy/qtlocation

/*!
    \internal
*/
void QDeclarativeRectangleMapItem::dragEnded()
{
    QPointF newTopLeftPoint = QPointF(x(),y());
    QGeoCoordinate newTopLeft = map()->screenPositionToCoordinate(newTopLeftPoint, false);
    if (newTopLeft.isValid()) {
        // calculate new geo width while checking for dateline crossing
        const double lonW = bottomRight_.longitude() > topLeft_.longitude() ?
                    bottomRight_.longitude() - topLeft_.longitude() :
                    bottomRight_.longitude() + 360 - topLeft_.longitude();
        const double latH = qAbs(bottomRight_.latitude() - topLeft_.latitude());
        QGeoCoordinate newBottomRight;
        // prevent dragging over valid min and max latitudes
        if (QLocationUtils::isValidLat(newTopLeft.latitude() - latH)) {
            newBottomRight.setLatitude(newTopLeft.latitude() - latH);
        } else {
            newBottomRight.setLatitude(QLocationUtils::clipLat(newTopLeft.latitude() - latH));
            newTopLeft.setLatitude(newBottomRight.latitude() + latH);
        }
        // handle dateline crossing
        newBottomRight.setLongitude(QLocationUtils::wrapLong(newTopLeft.longitude() + lonW));
        newBottomRight.setAltitude(newTopLeft.altitude());
        topLeft_ = newTopLeft;
        bottomRight_ = newBottomRight;
        geometry_.setPreserveGeometry(true, newTopLeft);
        borderGeometry_.setPreserveGeometry(true, newTopLeft);
        geometry_.markSourceDirty();
        borderGeometry_.markSourceDirty();
        updateMapItem();
        emit topLeftChanged(topLeft_);
        emit bottomRightChanged(bottomRight_);
    }
}

示例#2

文件： qdeclarativegeoboundingbox.cpp 项目： KDE/android-qt-mobility

void QDeclarativeGeoBoundingBox::setBottomRight(QDeclarativeCoordinate *coordinate)
{
    if (m_box.bottomRight() == coordinate->coordinate())
        return;
    m_box.setBottomRight(coordinate->coordinate());
    synchronizeDeclarative();
    emit bottomRightChanged();
}

示例#3

文件： qdeclarativerectanglemapitem.cpp 项目： 2gis/2gisqt5android

/*!
    \qmlproperty coordinate MapRectangle::bottomRight

    This property holds the bottom-right coordinate of the MapRectangle which
    can be used to retrieve its longitude, latitude and altitude.
*/
void QDeclarativeRectangleMapItem::setBottomRight(const QGeoCoordinate &bottomRight)
{
    if (bottomRight_ == bottomRight)
        return;

    bottomRight_ = bottomRight;

    markSourceDirtyAndUpdate();
    emit bottomRightChanged(bottomRight_);
}

示例#4

void QDeclarativeLandmarkBoxFilter::setBottomRight(QDeclarativeCoordinate* coordinate)
{
    if (m_bottomRight == coordinate)
        return;

    m_bottomRight = coordinate;
    if (m_topLeft && m_bottomRight)
        m_filter.setBoundingBox(QGeoBoundingBox(m_topLeft->coordinate(), m_bottomRight->coordinate()));
    emit bottomRightChanged();
    emit filterContentChanged();
}

示例#5

文件： qdeclarativerectanglemapitem.cpp 项目： amccarthy/qtlocation

/*!
    \qmlproperty coordinate MapRectangle::bottomRight

    This property holds the bottom-right coordinate of the MapRectangle which
    can be used to retrieve its longitude, latitude and altitude.
*/
void QDeclarativeRectangleMapItem::setBottomRight(const QGeoCoordinate &bottomRight)
{
    if (bottomRight_ == bottomRight)
        return;

    bottomRight_ = bottomRight;

    geometry_.markSourceDirty();
    borderGeometry_.markSourceDirty();
    updateMapItem();
    emit bottomRightChanged(bottomRight_);
}

示例#6

文件： qdeclarativerectanglemapitem.cpp 项目： 2gis/2gisqt5android

/*!
    \internal
*/
void QDeclarativeRectangleMapItem::geometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry)
{
    if (updatingGeometry_ || newGeometry.topLeft() == oldGeometry.topLeft()) {
        QDeclarativeGeoMapItemBase::geometryChanged(newGeometry, oldGeometry);
        return;
    }

    QDoubleVector2D newTopLeftPoint = QDoubleVector2D(x(),y());
    QGeoCoordinate newTopLeft = map()->itemPositionToCoordinate(newTopLeftPoint, false);
    if (newTopLeft.isValid()) {
        // calculate new geo width while checking for dateline crossing
        const double lonW = bottomRight_.longitude() > topLeft_.longitude() ?
                    bottomRight_.longitude() - topLeft_.longitude() :
                    bottomRight_.longitude() + 360 - topLeft_.longitude();
        const double latH = qAbs(bottomRight_.latitude() - topLeft_.latitude());
        QGeoCoordinate newBottomRight;
        // prevent dragging over valid min and max latitudes
        if (QLocationUtils::isValidLat(newTopLeft.latitude() - latH)) {
            newBottomRight.setLatitude(newTopLeft.latitude() - latH);
        } else {
            newBottomRight.setLatitude(QLocationUtils::clipLat(newTopLeft.latitude() - latH));
            newTopLeft.setLatitude(newBottomRight.latitude() + latH);
        }
        // handle dateline crossing
        newBottomRight.setLongitude(QLocationUtils::wrapLong(newTopLeft.longitude() + lonW));
        newBottomRight.setAltitude(newTopLeft.altitude());
        topLeft_ = newTopLeft;
        bottomRight_ = newBottomRight;
        geometry_.setPreserveGeometry(true, newTopLeft);
        borderGeometry_.setPreserveGeometry(true, newTopLeft);
        markSourceDirtyAndUpdate();
        emit topLeftChanged(topLeft_);
        emit bottomRightChanged(bottomRight_);
    }

    // Not calling QDeclarativeGeoMapItemBase::geometryChanged() as it will be called from a nested
    // call to this function.
}