Example #1
0
QPainterPath GraphicsUtils::shapeFromPath(const QPainterPath &path, const QPen &pen, double shapeStrokeWidth, bool includeOriginalPath)
{
	// this function mostly copied from QGraphicsItem::qt_graphicsItem_shapeFromPath


    // We unfortunately need this hack as QPainterPathStroker will set a width of 1.0
    // if we pass a value of 0.0 to QPainterPathStroker::setWidth()
    static const double penWidthZero = double(0.00000001);

    if (path == QPainterPath())
        return path;
    QPainterPathStroker ps;
    ps.setCapStyle(pen.capStyle());
    //ps.setCapStyle(Qt::FlatCap);
    if (shapeStrokeWidth <= 0.0)
        ps.setWidth(penWidthZero);
    else
        ps.setWidth(shapeStrokeWidth);

    ps.setJoinStyle(pen.joinStyle());
    ps.setMiterLimit(pen.miterLimit());
    QPainterPath p = ps.createStroke(path);
	if (includeOriginalPath) {
		p.addPath(path);
	}
    return p;
}
void KoOdfGraphicStyles::saveOdfStrokeStyle(KoGenStyle &styleStroke, KoGenStyles &mainStyles, const QPen &pen)
{
    // TODO implement all possibilities
    switch (pen.style()) {
    case Qt::NoPen:
        styleStroke.addProperty("draw:stroke", "none");
        return;
    case Qt::SolidLine:
        styleStroke.addProperty("draw:stroke", "solid");
        break;
    default: { // must be a dashed line
        styleStroke.addProperty("draw:stroke", "dash");
        // save stroke dash (14.14.7) which is severly limited, but still
        KoGenStyle dashStyle(KoGenStyle::StrokeDashStyle);
        dashStyle.addAttribute("draw:style", "rect");
        QVector<qreal> dashes = pen.dashPattern();
        dashStyle.addAttribute("draw:dots1", static_cast<int>(1));
        dashStyle.addAttributePt("draw:dots1-length", dashes[0]*pen.widthF());
        dashStyle.addAttributePt("draw:distance", dashes[1]*pen.widthF());
        if (dashes.size() > 2) {
            dashStyle.addAttribute("draw:dots2", static_cast<int>(1));
            dashStyle.addAttributePt("draw:dots2-length", dashes[2]*pen.widthF());
        }
        QString dashStyleName = mainStyles.insert(dashStyle, "dash");
        styleStroke.addProperty("draw:stroke-dash", dashStyleName);
        break;
    }
    }

    if (pen.brush().gradient()) {
        styleStroke.addProperty("koffice:stroke-gradient", saveOdfGradientStyle(mainStyles, pen.brush()));
    }
    else {
        styleStroke.addProperty("svg:stroke-color", pen.color().name());
        styleStroke.addProperty("svg:stroke-opacity", QString("%1").arg(pen.color().alphaF()));
    }
    styleStroke.addPropertyPt("svg:stroke-width", pen.widthF());

    switch (pen.joinStyle()) {
    case Qt::MiterJoin:
        styleStroke.addProperty("draw:stroke-linejoin", "miter");
        break;
    case Qt::BevelJoin:
        styleStroke.addProperty("draw:stroke-linejoin", "bevel");
        break;
    case Qt::RoundJoin:
        styleStroke.addProperty("draw:stroke-linejoin", "round");
        break;
    default:
        styleStroke.addProperty("draw:stroke-linejoin", "miter");
        styleStroke.addProperty("koffice:stroke-miterlimit", QString("%1").arg(pen.miterLimit()));
        break;
    }
}
Example #3
0
FloatRect Path::strokeBoundingRect(StrokeStyleApplier* applier)
{
    GraphicsContext* gc = scratchContext();
    QPainterPathStroker stroke;
    if (applier) {
        applier->strokeStyle(gc);

        QPen pen = gc->pen();
        stroke.setWidth(pen.widthF());
        stroke.setCapStyle(pen.capStyle());
        stroke.setJoinStyle(pen.joinStyle());
        stroke.setMiterLimit(pen.miterLimit());
        stroke.setDashPattern(pen.dashPattern());
        stroke.setDashOffset(pen.dashOffset());
    }
    return stroke.createStroke(m_path).boundingRect();
}
Example #4
0
bool Path::strokeContains(StrokeStyleApplier* applier, const FloatPoint& point) const
{
    ASSERT(applier);

    QPainterPathStroker stroke;
    GraphicsContext* gc = scratchContext();
    applier->strokeStyle(gc);

    QPen pen = gc->pen();
    stroke.setWidth(pen.widthF());
    stroke.setCapStyle(pen.capStyle());
    stroke.setJoinStyle(pen.joinStyle());
    stroke.setMiterLimit(pen.miterLimit());
    stroke.setDashPattern(pen.dashPattern());
    stroke.setDashOffset(pen.dashOffset());

    return stroke.createStroke(m_path).contains(point);
}
FloatRect Path::strokeBoundingRect(StrokeStyleApplier* applier)
{
    // FIXME: We should try to use a 'shared Context' instead of creating a new ImageBuffer
    // on each call.
    OwnPtr<ImageBuffer> scratchImage = ImageBuffer::create(IntSize(1, 1));
    GraphicsContext* gc = scratchImage->context();
    QPainterPathStroker stroke;
    if (applier) {
        applier->strokeStyle(gc);

        QPen pen = gc->pen();
        stroke.setWidth(pen.widthF());
        stroke.setCapStyle(pen.capStyle());
        stroke.setJoinStyle(pen.joinStyle());
        stroke.setMiterLimit(pen.miterLimit());
        stroke.setDashPattern(pen.dashPattern());
        stroke.setDashOffset(pen.dashOffset());
    }
    return stroke.createStroke(m_path).boundingRect();
}
bool Path::strokeContains(StrokeStyleApplier* applier, const FloatPoint& point) const
{
    ASSERT(applier);

    // FIXME: We should try to use a 'shared Context' instead of creating a new ImageBuffer
    // on each call.
    OwnPtr<ImageBuffer> scratchImage = ImageBuffer::create(IntSize(1, 1));
    GraphicsContext* gc = scratchImage->context();
    QPainterPathStroker stroke;
    applier->strokeStyle(gc);

    QPen pen = gc->pen();
    stroke.setWidth(pen.widthF());
    stroke.setCapStyle(pen.capStyle());
    stroke.setJoinStyle(pen.joinStyle());
    stroke.setMiterLimit(pen.miterLimit());
    stroke.setDashPattern(pen.dashPattern());
    stroke.setDashOffset(pen.dashOffset());

    return stroke.createStroke(m_path).contains(point);
}
Example #7
0
QPainterPath Toolbox::shapeFromPath(const QPainterPath& path, const QPen& pen,
                                    const QBrush&         brush,
                                    const UnsignedLength& minWidth) noexcept {
  // http://code.qt.io/cgit/qt/qtbase.git/tree/src/widgets/graphicsview/qgraphicsitem.cpp
  // Function: qt_graphicsItem_shapeFromPath()

  if (path == QPainterPath() || pen == Qt::NoPen) {
    return path;
  } else {
    QPainterPathStroker ps;
    ps.setCapStyle(pen.capStyle());
    ps.setWidth(qMax(qMax(pen.widthF(), qreal(0.00000001)), minWidth->toPx()));
    ps.setJoinStyle(pen.joinStyle());
    ps.setMiterLimit(pen.miterLimit());
    QPainterPath p = ps.createStroke(path);
    if (brush != Qt::NoBrush) {
      p.addPath(path);
    }
    return p;
  }
}
Example #8
0
QPainterPath ArrowItem::shape() const
{
    QPainterPath path;
    path.setFillRule(Qt::WindingFill);
    if (m_shaftItem &&m_shaftItem->path() != QPainterPath()) {
        QPainterPathStroker ps;
        QPen pen = m_shaftItem->pen();
        ps.setCapStyle(pen.capStyle());
        ps.setJoinStyle(pen.joinStyle());
        ps.setMiterLimit(pen.miterLimit());
        // overwrite pen width to make selection more lazy
        ps.setWidth(16.0);
        QPainterPath p = ps.createStroke(m_shaftItem->path());
        path.addPath(p);
    }
    if (m_startHeadItem)
        path.addRect(mapRectFromItem(m_startHeadItem, m_startHeadItem->boundingRect()));
    if (m_endHeadItem)
        path.addRect(mapRectFromItem(m_endHeadItem, m_endHeadItem->boundingRect()));
    return path;
}
Example #9
0
void QTriangulatingStroker::process(const QVectorPath &path, const QPen &pen, const QRectF &)
{
    const qreal *pts = path.points();
    const QPainterPath::ElementType *types = path.elements();
    int count = path.elementCount();
    if (count < 2)
        return;

    float realWidth = qpen_widthf(pen);
    if (realWidth == 0)
        realWidth = 1;

    m_width = realWidth / 2;

    bool cosmetic = pen.isCosmetic();
    if (cosmetic) {
        m_width = m_width * m_inv_scale;
    }

    m_join_style = qpen_joinStyle(pen);
    m_cap_style = qpen_capStyle(pen);
    m_vertices.reset();
    m_miter_limit = pen.miterLimit() * qpen_widthf(pen);

    // The curvyness is based on the notion that I originally wanted
    // roughly one line segment pr 4 pixels. This may seem little, but
    // because we sample at constantly incrementing B(t) E [0<t<1], we
    // will get longer segments where the curvature is small and smaller
    // segments when the curvature is high.
    //
    // To get a rough idea of the length of each curve, I pretend that
    // the curve is a 90 degree arc, whose radius is
    // qMax(curveBounds.width, curveBounds.height). Based on this
    // logic we can estimate the length of the outline edges based on
    // the radius + a pen width and adjusting for scale factors
    // depending on if the pen is cosmetic or not.
    //
    // The curvyness value of PI/14 was based on,
    // arcLength = 2*PI*r/4 = PI*r/2 and splitting length into somewhere
    // between 3 and 8 where 5 seemed to be give pretty good results
    // hence: Q_PI/14. Lower divisors will give more detail at the
    // direct cost of performance.

    // simplfy pens that are thin in device size (2px wide or less)
    if (realWidth < 2.5 && (cosmetic || m_inv_scale == 1)) {
        if (m_cap_style == Qt::RoundCap)
            m_cap_style = Qt::SquareCap;
        if (m_join_style == Qt::RoundJoin)
            m_join_style = Qt::MiterJoin;
        m_curvyness_add = 0.5;
        m_curvyness_mul = CURVE_FLATNESS / m_inv_scale;
        m_roundness = 1;
    } else if (cosmetic) {
        m_curvyness_add = realWidth / 2;
        m_curvyness_mul = CURVE_FLATNESS;
        m_roundness = qMax<int>(4, realWidth * CURVE_FLATNESS);
    } else {
        m_curvyness_add = m_width;
        m_curvyness_mul = CURVE_FLATNESS / m_inv_scale;
        m_roundness = qMax<int>(4, realWidth * m_curvyness_mul);
    }

    // Over this level of segmentation, there doesn't seem to be any
    // benefit, even for huge penWidth
    if (m_roundness > 24)
        m_roundness = 24;

    m_sin_theta = qFastSin(Q_PI / m_roundness);
    m_cos_theta = qFastCos(Q_PI / m_roundness);

    const qreal *endPts = pts + (count<<1);
    const qreal *startPts = 0;

    Qt::PenCapStyle cap = m_cap_style;

    if (!types) {
        // skip duplicate points
        while((pts + 2) < endPts && pts[0] == pts[2] && pts[1] == pts[3])
            pts += 2;
        if ((pts + 2) == endPts)
            return;

        startPts = pts;

        bool endsAtStart = startPts[0] == *(endPts-2) && startPts[1] == *(endPts-1);

        if (endsAtStart || path.hasImplicitClose())
            m_cap_style = Qt::FlatCap;
        moveTo(pts);
        m_cap_style = cap;
        pts += 2;
        lineTo(pts);
        pts += 2;
        while (pts < endPts) {
            if (m_cx != pts[0] || m_cy != pts[1]) {
                join(pts);
                lineTo(pts);
            }
            pts += 2;
        }

        endCapOrJoinClosed(startPts, pts-2, path.hasImplicitClose(), endsAtStart);

    } else {
        bool endsAtStart = false;
        while (pts < endPts) {
            switch (*types) {
            case QPainterPath::MoveToElement: {
                if (pts != path.points())
                    endCapOrJoinClosed(startPts, pts-2, path.hasImplicitClose(), endsAtStart);

                startPts = pts;
                int end = (endPts - pts) / 2;
                int i = 2; // Start looking to ahead since we never have two moveto's in a row
                while (i<end && types[i] != QPainterPath::MoveToElement) {
                    ++i;
                }
                endsAtStart = startPts[0] == pts[i*2 - 2] && startPts[1] == pts[i*2 - 1];
                if (endsAtStart || path.hasImplicitClose())
                    m_cap_style = Qt::FlatCap;

                moveTo(pts);
                m_cap_style = cap;
                pts+=2;
                ++types;
                break; }
            case QPainterPath::LineToElement:
                if (*(types - 1) != QPainterPath::MoveToElement)
                    join(pts);
                lineTo(pts);
                pts+=2;
                ++types;
                break;
            case QPainterPath::CurveToElement:
                if (*(types - 1) != QPainterPath::MoveToElement)
                    join(pts);
                cubicTo(pts);
                pts+=6;
                types+=3;
                break;
            default:
                Q_ASSERT(false);
                break;
            }
        }

        endCapOrJoinClosed(startPts, pts-2, path.hasImplicitClose(), endsAtStart);
    }
}
Example #10
0
void QDashedStrokeProcessor::process(const QVectorPath &path, const QPen &pen, const QRectF &clip)
{

    const qreal *pts = path.points();
    const QPainterPath::ElementType *types = path.elements();
    int count = path.elementCount();

    bool cosmetic = pen.isCosmetic();

    m_points.reset();
    m_types.reset();
    m_points.reserve(path.elementCount());
    m_types.reserve(path.elementCount());

    qreal width = qpen_widthf(pen);
    if (width == 0)
        width = 1;

    m_dash_stroker.setDashPattern(pen.dashPattern());
    m_dash_stroker.setStrokeWidth(cosmetic ? width * m_inv_scale : width);
    m_dash_stroker.setDashOffset(pen.dashOffset());
    m_dash_stroker.setMiterLimit(pen.miterLimit());
    m_dash_stroker.setClipRect(clip);

    float curvynessAdd, curvynessMul;

    // simplify pens that are thin in device size (2px wide or less)
    if (width < 2.5 && (cosmetic || m_inv_scale == 1)) {
        curvynessAdd = 0.5;
        curvynessMul = CURVE_FLATNESS / m_inv_scale;
    } else if (cosmetic) {
        curvynessAdd= width / 2;
        curvynessMul= CURVE_FLATNESS;
    } else {
        curvynessAdd = width * m_inv_scale;
        curvynessMul = CURVE_FLATNESS / m_inv_scale;
    }

    if (count < 2)
        return;

    const qreal *endPts = pts + (count<<1);

    m_dash_stroker.begin(this);

    if (!types) {
        m_dash_stroker.moveTo(pts[0], pts[1]);
        pts += 2;
        while (pts < endPts) {
            m_dash_stroker.lineTo(pts[0], pts[1]);
            pts += 2;
        }
    } else {
        while (pts < endPts) {
            switch (*types) {
            case QPainterPath::MoveToElement:
                m_dash_stroker.moveTo(pts[0], pts[1]);
                pts += 2;
                ++types;
                break;
            case QPainterPath::LineToElement:
                m_dash_stroker.lineTo(pts[0], pts[1]);
                pts += 2;
                ++types;
                break;
            case QPainterPath::CurveToElement: {
                QBezier b = QBezier::fromPoints(*(((const QPointF *) pts) - 1),
                                                *(((const QPointF *) pts)),
                                                *(((const QPointF *) pts) + 1),
                                                *(((const QPointF *) pts) + 2));
                QRectF bounds = b.bounds();
                float rad = qMax(bounds.width(), bounds.height());
                int threshold = qMin<float>(64, (rad + curvynessAdd) * curvynessMul);
                if (threshold < 4)
                    threshold = 4;

                qreal threshold_minus_1 = threshold - 1;
                for (int i=0; i<threshold; ++i) {
                    QPointF pt = b.pointAt(i / threshold_minus_1);
                    m_dash_stroker.lineTo(pt.x(), pt.y());
                }
                pts += 6;
                types += 3;
                break; }
            default: break;
            }
        }
    }

    m_dash_stroker.end();
}
Example #11
0
void QPaintEngineEx::stroke(const QVectorPath &path, const QPen &pen)
{
#ifdef QT_DEBUG_DRAW
    qDebug() << "QPaintEngineEx::stroke()" << pen;
#endif

    Q_D(QPaintEngineEx);

    if (path.isEmpty())
        return;

    if (!d->strokeHandler) {
        d->strokeHandler = new StrokeHandler(path.elementCount()+4);
        d->stroker.setMoveToHook(qpaintengineex_moveTo);
        d->stroker.setLineToHook(qpaintengineex_lineTo);
        d->stroker.setCubicToHook(qpaintengineex_cubicTo);
    }

    if (!qpen_fast_equals(pen, d->strokerPen)) {
        d->strokerPen = pen;
        d->stroker.setJoinStyle(pen.joinStyle());
        d->stroker.setCapStyle(pen.capStyle());
        d->stroker.setMiterLimit(pen.miterLimit());
        qreal penWidth = pen.widthF();
        if (penWidth == 0)
            d->stroker.setStrokeWidth(1);
        else
            d->stroker.setStrokeWidth(penWidth);

        Qt::PenStyle style = pen.style();
        if (style == Qt::SolidLine) {
            d->activeStroker = &d->stroker;
        } else if (style == Qt::NoPen) {
            d->activeStroker = 0;
        } else {
            d->dasher.setDashPattern(pen.dashPattern());
            d->dasher.setDashOffset(pen.dashOffset());
            d->activeStroker = &d->dasher;
        }
    }

    if (!d->activeStroker) {
        return;
    }

    if (pen.style() > Qt::SolidLine) {
        if (pen.isCosmetic()) {
            d->activeStroker->setClipRect(d->exDeviceRect);
        } else {
            QRectF clipRect = state()->matrix.inverted().mapRect(QRectF(d->exDeviceRect));
            d->activeStroker->setClipRect(clipRect);
        }
    }

    const QPainterPath::ElementType *types = path.elements();
    const qreal *points = path.points();
    int pointCount = path.elementCount();

    const qreal *lastPoint = points + (pointCount<<1);

    d->strokeHandler->types.reset();
    d->strokeHandler->pts.reset();

    // Some engines might decide to optimize for the non-shape hint later on...
    uint flags = QVectorPath::WindingFill;

    if (path.elementCount() > 2)
        flags |= QVectorPath::NonConvexShapeMask;

    if (d->stroker.capStyle() == Qt::RoundCap || d->stroker.joinStyle() == Qt::RoundJoin)
        flags |= QVectorPath::CurvedShapeMask;

    // ### Perspective Xforms are currently not supported...
    if (!pen.isCosmetic()) {
        // We include cosmetic pens in this case to avoid having to
        // change the current transform. Normal transformed,
        // non-cosmetic pens will be transformed as part of fill
        // later, so they are also covered here..
        d->activeStroker->setCurveThresholdFromTransform(state()->matrix);
        d->activeStroker->begin(d->strokeHandler);
        if (types) {
            while (points < lastPoint) {
                switch (*types) {
                case QPainterPath::MoveToElement:
                    d->activeStroker->moveTo(points[0], points[1]);
                    points += 2;
                    ++types;
                    break;
                case QPainterPath::LineToElement:
                    d->activeStroker->lineTo(points[0], points[1]);
                    points += 2;
                    ++types;
                    break;
                case QPainterPath::CurveToElement:
                    d->activeStroker->cubicTo(points[0], points[1],
                                              points[2], points[3],
                                              points[4], points[5]);
                    points += 6;
                    types += 3;
                    flags |= QVectorPath::CurvedShapeMask;
                    break;
                default:
                    break;
                }
            }
            if (path.hasImplicitClose())
                d->activeStroker->lineTo(path.points()[0], path.points()[1]);

        } else {
            d->activeStroker->moveTo(points[0], points[1]);
            points += 2;
            while (points < lastPoint) {
                d->activeStroker->lineTo(points[0], points[1]);
                points += 2;
            }
            if (path.hasImplicitClose())
                d->activeStroker->lineTo(path.points()[0], path.points()[1]);
        }
        d->activeStroker->end();

        if (!d->strokeHandler->types.size()) // an empty path...
            return;

        QVectorPath strokePath(d->strokeHandler->pts.data(),
                               d->strokeHandler->types.size(),
                               d->strokeHandler->types.data(),
                               flags);
        fill(strokePath, pen.brush());
    } else {
        // For cosmetic pens we need a bit of trickery... We to process xform the input points
        if (state()->matrix.type() >= QTransform::TxProject) {
            QPainterPath painterPath = state()->matrix.map(path.convertToPainterPath());
            d->activeStroker->strokePath(painterPath, d->strokeHandler, QTransform());
        } else {
            d->activeStroker->setCurveThresholdFromTransform(QTransform());
            d->activeStroker->begin(d->strokeHandler);
            if (types) {
                while (points < lastPoint) {
                    switch (*types) {
                    case QPainterPath::MoveToElement: {
                        QPointF pt = (*(QPointF *) points) * state()->matrix;
                        d->activeStroker->moveTo(pt.x(), pt.y());
                        points += 2;
                        ++types;
                        break;
                    }
                    case QPainterPath::LineToElement: {
                        QPointF pt = (*(QPointF *) points) * state()->matrix;
                        d->activeStroker->lineTo(pt.x(), pt.y());
                        points += 2;
                        ++types;
                        break;
                    }
                    case QPainterPath::CurveToElement: {
                        QPointF c1 = ((QPointF *) points)[0] * state()->matrix;
                        QPointF c2 = ((QPointF *) points)[1] * state()->matrix;
                        QPointF e =  ((QPointF *) points)[2] * state()->matrix;
                        d->activeStroker->cubicTo(c1.x(), c1.y(), c2.x(), c2.y(), e.x(), e.y());
                        points += 6;
                        types += 3;
                        flags |= QVectorPath::CurvedShapeMask;
                        break;
                    }
                    default:
                        break;
                    }
                }
                if (path.hasImplicitClose()) {
                    QPointF pt = * ((QPointF *) path.points()) * state()->matrix;
                    d->activeStroker->lineTo(pt.x(), pt.y());
                }

            } else {
                QPointF p = ((QPointF *)points)[0] * state()->matrix;
                d->activeStroker->moveTo(p.x(), p.y());
                points += 2;
                while (points < lastPoint) {
                    QPointF p = ((QPointF *)points)[0] * state()->matrix;
                    d->activeStroker->lineTo(p.x(), p.y());
                    points += 2;
                }
                if (path.hasImplicitClose())
                    d->activeStroker->lineTo(p.x(), p.y());
            }
            d->activeStroker->end();
        }

        QVectorPath strokePath(d->strokeHandler->pts.data(),
                               d->strokeHandler->types.size(),
                               d->strokeHandler->types.data(),
                               flags);

        QTransform xform = state()->matrix;
        state()->matrix = QTransform();
        transformChanged();

        QBrush brush = pen.brush();
        if (qbrush_style(brush) != Qt::SolidPattern)
            brush.setTransform(brush.transform() * xform);

        fill(strokePath, brush);

        state()->matrix = xform;
        transformChanged();
    }
}
void QDashedStrokeProcessor::process(const QVectorPath &path, const QPen &pen)
{

    const qreal *pts = path.points();
    const QPainterPath::ElementType *types = path.elements();
    int count = path.elementCount();

    m_points.reset();
    m_types.reset();

    qreal width = qpen_widthf(pen);
    if (width == 0)
        width = 1;

    m_dash_stroker.setDashPattern(pen.dashPattern());
    m_dash_stroker.setStrokeWidth(pen.isCosmetic() ? width * m_inv_scale : width);
    m_dash_stroker.setMiterLimit(pen.miterLimit());
    qreal curvyness = sqrt(width) * m_inv_scale / 8;

    if (count < 2)
        return;

    const qreal *endPts = pts + (count<<1);

    m_dash_stroker.begin(this);

    if (!types) {
        m_dash_stroker.moveTo(pts[0], pts[1]);
        pts += 2;
        while (pts < endPts) {
            m_dash_stroker.lineTo(pts[0], pts[1]);
            pts += 2;
        }
    } else {
        while (pts < endPts) {
            switch (*types) {
            case QPainterPath::MoveToElement:
                m_dash_stroker.moveTo(pts[0], pts[1]);
                pts += 2;
                ++types;
                break;
            case QPainterPath::LineToElement:
                m_dash_stroker.lineTo(pts[0], pts[1]);
                pts += 2;
                ++types;
                break;
            case QPainterPath::CurveToElement: {
                QBezier b = QBezier::fromPoints(*(((const QPointF *) pts) - 1),
                                                *(((const QPointF *) pts)),
                                                *(((const QPointF *) pts) + 1),
                                                *(((const QPointF *) pts) + 2));
                QRectF bounds = b.bounds();
                int threshold = qMin<float>(64, qMax(bounds.width(), bounds.height()) * curvyness);
                if (threshold < 4)
                    threshold = 4;
                qreal threshold_minus_1 = threshold - 1;
                for (int i=0; i<threshold; ++i) {
                    QPointF pt = b.pointAt(i / threshold_minus_1);
                    m_dash_stroker.lineTo(pt.x(), pt.y());
                }
                pts += 6;
                types += 3;
                break; }
            default: break;
            }
        }
    }

    m_dash_stroker.end();
}
Example #13
0
QString TextBoxContent::cacheKey(AbstractVisualItem *abstract_model)
{
	TextBoxItem * model = dynamic_cast<TextBoxItem*>(abstract_model);
	if(!model)
		return "";
		
	QString key  = model->property("$tb.cacheKey").toString();
	QVariant var = model->property("$tb.cacheKeyRev");
	int keyRev = var.isValid() ? var.toInt() : -1;
	
	if(key.isEmpty() || (uint)keyRev != (uint)model->revision())
	{
		QByteArray array;
		QDataStream list(&array, QIODevice::WriteOnly);
		
		list << model->text();
		
		if(model && model->outlineEnabled())
		{
			QPen p = model->outlinePen();
			
			list << (int)p.color().rgba();
			list << p.miterLimit();
			list << p.widthF();
			list << (int)p.style();
			list << (int)p.capStyle();
			list << (int)p.joinStyle();
		}
		
		list << model->shadowBlurRadius();
		list << (int)model->shadowBrush().color().rgba();
		
		list << model->shadowOffsetX();
		list << model->shadowOffsetY();
		
		list << (int)model->fillType();
		list << (int)model->fillBrush().color().rgba();
		
		list << (int)model->zoomEffectEnabled();
		
		QString md5key = MD5::md5sum(array);
		
		QDir path(QString("%1/%2").arg(AppSettings::cachePath()).arg(TEXT_RENDER_CACHE_DIR));
		if(!path.exists())
			QDir(AppSettings::cachePath()).mkdir(TEXT_RENDER_CACHE_DIR);
			
		QSizeF shadowSize = model->shadowEnabled() ? QSizeF(model->shadowOffsetX(),model->shadowOffsetY()) : QSizeF(0,0);
		QSize renderSize = (model->contentsRect().size()+shadowSize).toSize();
	
		key = QString("%1/%2/%3-%4x%5")
			.arg(AppSettings::cachePath())
			.arg(TEXT_RENDER_CACHE_DIR)
			.arg(md5key)
			.arg(renderSize.width())
			.arg(renderSize.height());
		
		model->setProperty("$tb.cacheKey",key);
		model->setProperty("$tb.cacheKeyRev",model->revision());
		
		//qDebug() << "TextBoxContent::cacheKey(): "<<model->itemName()<<": model rev:"<<model->revision()<<", key: "<<key;
	}
	return key;
}