qt-everywhere-src-5.15.1/qtquickcontrols/src/extras/Styles/Flat/qquicktexthandle.cpp

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#include "qquicktexthandle.h"
#include <QPainterPath>

#include <QPainterPath>

QQuickTextHandle::QQuickTextHandle(QQuickItem *parent) :
    QQuickPaintedItem(parent)
{
    setAntialiasing(true);
}

QQuickTextHandle::~QQuickTextHandle()
{
}

void QQuickTextHandle::paint(QPainter *painter)
{
    painter->save();
    paintBulb(painter, QColor(0, 0, 0, 38), true);
    painter->restore();

    paintBulb(painter, mColor, false);
    painter->fillRect((mType == SelectionHandle ? 10 : 1), 0, 2, 23, mColor);
}

QQuickTextHandle::TextHandleType QQuickTextHandle::type() const
{
    return mType;
}

void QQuickTextHandle::setType(QQuickTextHandle::TextHandleType type)
{
    if (mType != type) {
        mType = type;
        update();
        emit typeChanged();
    }
}

QColor QQuickTextHandle::color() const
{
    return mColor;
}

void QQuickTextHandle::setColor(const QColor &color)
{
    if (mColor != color) {
        mColor = color;
        update();
        emit colorChanged();
    }
}

qreal QQuickTextHandle::scaleFactor() const
{
    return mScaleFactor;
}

void QQuickTextHandle::setScaleFactor(qreal scaleFactor)
{
    if (mScaleFactor != scaleFactor) {
        mScaleFactor = scaleFactor;
        setImplicitWidth(qRound(28 * mScaleFactor));
        // + 2 for shadows
        setImplicitHeight(qRound((32 + 2) * mScaleFactor));
        update();
        emit scaleFactorChanged();
    }
}

void QQuickTextHandle::paintBulb(QPainter *painter, const QColor &color, bool isShadow)
{
    painter->scale(mScaleFactor, mScaleFactor);
    QPainterPath path;

    if (mType == SelectionHandle) {
        painter->translate(16, isShadow ? 2 : 0);
        path.moveTo(10.242, 28.457);
        path.cubicTo(7.8980000000000015, 30.799, 4.099000000000001, 30.799,1.7560000000000002, 28.457);
        path.cubicTo(-0.5859999999999999, 26.115000000000002, -0.5859999999999999,22.314, 1.7560000000000002, 19.973);
        path.cubicTo(4.748, 16.980999999999998, 11.869, 18.343999999999998, 11.869, 18.343999999999998);
        path.cubicTo(11.869, 18.343999999999998, 13.244, 25.455, 10.242, 28.457);

    } else {
        if (isShadow)
            painter->translate(0, 2);
        path.moveTo(2.757,28.457);
        path.cubicTo(5.101,30.799,8.899000000000001,30.799,11.243,28.457);
        path.cubicTo(13.585,26.115000000000002,13.585,22.314,11.243,19.973);
        path.cubicTo(8.251,16.98,1.13,18.344,1.13,18.344);
        path.cubicTo(1.13,18.344,-0.245,25.455,2.757,28.457);
    }

    painter->fillPath(path, QBrush(color));
}