C++ (Cpp) paintToolOutline示例

示例#1

文件： kis_tool_multihand.cpp 项目： KDE/krita

void KisToolMultihand::paint(QPainter& gc, const KoViewConverter &converter)
{
    if(m_setupAxesFlag) {
        int diagonal = (currentImage()->height() + currentImage()->width());

        QPainterPath path;
        path.moveTo(m_axesPoint.x()-diagonal*cos(m_angle), m_axesPoint.y()-diagonal*sin(m_angle));
        path.lineTo(m_axesPoint.x()+diagonal*cos(m_angle), m_axesPoint.y()+diagonal*sin(m_angle));
        path.moveTo(m_axesPoint.x()-diagonal*cos(m_angle+M_PI_2), m_axesPoint.y()-diagonal*sin(m_angle+M_PI_2));
        path.lineTo(m_axesPoint.x()+diagonal*cos(m_angle+M_PI_2), m_axesPoint.y()+diagonal*sin(m_angle+M_PI_2));
        paintToolOutline(&gc, pixelToView(path));
    }
    else {
        KisToolFreehand::paint(gc, converter);
        if(m_showAxes){
            int diagonal = (currentImage()->height() + currentImage()->width());

            QPainterPath path;
            path.moveTo(m_axesPoint.x()-diagonal*cos(m_angle), m_axesPoint.y()-diagonal*sin(m_angle));
            path.lineTo(m_axesPoint.x()+diagonal*cos(m_angle), m_axesPoint.y()+diagonal*sin(m_angle));
            path.moveTo(m_axesPoint.x()-diagonal*cos(m_angle+M_PI_2), m_axesPoint.y()-diagonal*sin(m_angle+M_PI_2));
            path.lineTo(m_axesPoint.x()+diagonal*cos(m_angle+M_PI_2), m_axesPoint.y()+diagonal*sin(m_angle+M_PI_2));
            paintToolOutline(&gc, pixelToView(path));
        }
    }
}

示例#2

文件： kis_tool_polyline_base.cpp 项目： TheTypoMaster/calligra

void KisToolPolylineBase::paint(QPainter& gc, const KoViewConverter &converter)
{
    Q_UNUSED(converter);

    if (!canvas() || !currentImage())
        return;

    QPointF start, end;
    QPointF startPos;
    QPointF endPos;

    QPainterPath path;
    if (m_dragging && !m_points.empty()) {
        startPos = pixelToView(m_dragStart);
        endPos = pixelToView(m_dragEnd);
        path.moveTo(startPos);
        path.lineTo(endPos);
    }

    for (vQPointF::iterator it = m_points.begin(); it != m_points.end(); ++it) {

        if (it == m_points.begin()) {
            start = (*it);
        } else {
            end = (*it);

            startPos = pixelToView(start);
            endPos = pixelToView(end);
            path.moveTo(startPos);
            path.lineTo(endPos);
            start = end;
        }
    }

    if (m_closeSnappingActivated) {
        QPointF basePoint = pixelToView(m_points.first());
        path.addEllipse(basePoint, SNAPPING_HANDLE_RADIUS, SNAPPING_HANDLE_RADIUS);
    }

    paintToolOutline(&gc, path);
    KisToolPaint::paint(gc,converter);
}