render_object.cpp

konqueror3 embedded版本, KDE环境下的当家浏览器的嵌入式版本源码包.

          switch(s)
            {
            case BSTop:
              drawBorder(p, x1+kMax((-adjbw1*2+1)/3,0), y1        , x2-kMax((-adjbw2*2+1)/3,0), y1 + third, s, c, textcolor, SOLID, adjbw1bigthird, adjbw2bigthird);
              drawBorder(p, x1+kMax(( adjbw1*2+1)/3,0), y2 - third, x2-kMax(( adjbw2*2+1)/3,0), y2        , s, c, textcolor, SOLID, adjbw1bigthird, adjbw2bigthird);
              break;
            case BSLeft:
              drawBorder(p, x1        , y1+kMax((-adjbw1*2+1)/3,0), x1+third, y2-kMax((-adjbw2*2+1)/3,0), s, c, textcolor, SOLID, adjbw1bigthird, adjbw2bigthird);
              drawBorder(p, x2 - third, y1+kMax(( adjbw1*2+1)/3,0), x2      , y2-kMax(( adjbw2*2+1)/3,0), s, c, textcolor, SOLID, adjbw1bigthird, adjbw2bigthird);
              break;
            case BSBottom:
              drawBorder(p, x1+kMax(( adjbw1*2+1)/3,0), y1      , x2-kMax(( adjbw2*2+1)/3,0), y1+third, s, c, textcolor, SOLID, adjbw1bigthird, adjbw2bigthird);
              drawBorder(p, x1+kMax((-adjbw1*2+1)/3,0), y2-third, x2-kMax((-adjbw2*2+1)/3,0), y2      , s, c, textcolor, SOLID, adjbw1bigthird, adjbw2bigthird);
              break;
            case BSRight:
            drawBorder(p, x1      , y1+kMax(( adjbw1*2+1)/3,0), x1+third, y2-kMax(( adjbw2*2+1)/3,0), s, c, textcolor, SOLID, adjbw1bigthird, adjbw2bigthird);
            drawBorder(p, x2-third, y1+kMax((-adjbw1*2+1)/3,0), x2      , y2-kMax((-adjbw2*2+1)/3,0), s, c, textcolor, SOLID, adjbw1bigthird, adjbw2bigthird);
              break;
            default:
              break;
            }
        }
        break;
    }
    case RIDGE:
    case GROOVE:
    {
        EBorderStyle s1;
        EBorderStyle s2;
        if (style==GROOVE)
        {
            s1 = INSET;
            s2 = OUTSET;
        }
        else
        {
            s1 = OUTSET;
            s2 = INSET;
        }

        int adjbw1bighalf;
        int adjbw2bighalf;
        if (adjbw1>0) adjbw1bighalf=adjbw1+1;
        else adjbw1bighalf=adjbw1-1;
        adjbw1bighalf/=2;

        if (adjbw2>0) adjbw2bighalf=adjbw2+1;
        else adjbw2bighalf=adjbw2-1;
        adjbw2bighalf/=2;

        switch (s)
        {
        case BSTop:
            drawBorder(p, x1+kMax(-adjbw1  ,0)/2,  y1        , x2-kMax(-adjbw2,0)/2, (y1+y2+1)/2, s, c, textcolor, s1, adjbw1bighalf, adjbw2bighalf);
            drawBorder(p, x1+kMax( adjbw1+1,0)/2, (y1+y2+1)/2, x2-kMax( adjbw2+1,0)/2,  y2        , s, c, textcolor, s2, adjbw1/2, adjbw2/2);
            break;
        case BSLeft:
            drawBorder(p,  x1        , y1+kMax(-adjbw1  ,0)/2, (x1+x2+1)/2, y2-kMax(-adjbw2,0)/2, s, c, textcolor, s1, adjbw1bighalf, adjbw2bighalf);
            drawBorder(p, (x1+x2+1)/2, y1+kMax( adjbw1+1,0)/2,  x2        , y2-kMax( adjbw2+1,0)/2, s, c, textcolor, s2, adjbw1/2, adjbw2/2);
            break;
        case BSBottom:
            drawBorder(p, x1+kMax( adjbw1  ,0)/2,  y1        , x2-kMax( adjbw2,0)/2, (y1+y2+1)/2, s, c, textcolor, s2,  adjbw1bighalf, adjbw2bighalf);
            drawBorder(p, x1+kMax(-adjbw1+1,0)/2, (y1+y2+1)/2, x2-kMax(-adjbw2+1,0)/2,  y2        , s, c, textcolor, s1, adjbw1/2, adjbw2/2);
            break;
        case BSRight:
            drawBorder(p,  x1        , y1+kMax( adjbw1  ,0)/2, (x1+x2+1)/2, y2-kMax( adjbw2,0)/2, s, c, textcolor, s2, adjbw1bighalf, adjbw2bighalf);
            drawBorder(p, (x1+x2+1)/2, y1+kMax(-adjbw1+1,0)/2,  x2        , y2-kMax(-adjbw2+1,0)/2, s, c, textcolor, s1, adjbw1/2, adjbw2/2);
            break;
        }
        break;
    }
    case INSET:
    case OUTSET:
        calc3DColor(c, (style == OUTSET && (s == BSBottom || s == BSRight)) ||
             (style == INSET && ( s == BSTop || s == BSLeft ) ) );
        /* nobreak; */
    case SOLID:
        p->setPen(Qt::NoPen);
        p->setBrush(c);
        Q_ASSERT(x2>=x1);
        Q_ASSERT(y2>=y1);
        if (adjbw1==0 && adjbw2 == 0) {
            p->drawRect(x1,y1,x2-x1,y2-y1);
            return;
        }
        QPointArray quad(4);
        switch(s) {
        case BSTop:
            quad.setPoints(4,
                           x1+kMax(-adjbw1,0), y1,
                           x1+kMax( adjbw1,0), y2,
                           x2-kMax( adjbw2,0), y2,
                           x2-kMax(-adjbw2,0), y1);
            break;
        case BSBottom:
            quad.setPoints(4,
                           x1+kMax( adjbw1,0), y1,
                           x1+kMax(-adjbw1,0), y2,
                           x2-kMax(-adjbw2,0), y2,
                           x2-kMax( adjbw2,0), y1);
            break;
        case BSLeft:
          quad.setPoints(4,
                         x1, y1+kMax(-adjbw1,0),
                                x1, y2-kMax(-adjbw2,0),
                         x2, y2-kMax( adjbw2,0),
                         x2, y1+kMax( adjbw1,0));
            break;
        case BSRight:
          quad.setPoints(4,
                         x1, y1+kMax( adjbw1,0),
                                x1, y2-kMax( adjbw2,0),
                         x2, y2-kMax(-adjbw2,0),
                         x2, y1+kMax(-adjbw1,0));
            break;
        }
        p->drawConvexPolygon(quad);
        break;
    }

    if(invalidisInvert && p->rasterOp() == Qt::XorROP)
        p->setRasterOp(Qt::CopyROP);
}

void RenderObject::paintBorder(QPainter *p, int _tx, int _ty, int w, int h, const RenderStyle* style, bool begin, bool end)
{
    const QColor& tc = style->borderTopColor();
    const QColor& bc = style->borderBottomColor();
    const QColor& lc = style->borderLeftColor();
    const QColor& rc = style->borderRightColor();

    bool tt = style->borderTopIsTransparent();
    bool bt = style->borderBottomIsTransparent();
    bool rt = style->borderRightIsTransparent();
    bool lt = style->borderLeftIsTransparent();

    EBorderStyle ts = style->borderTopStyle();
    EBorderStyle bs = style->borderBottomStyle();
    EBorderStyle ls = style->borderLeftStyle();
    EBorderStyle rs = style->borderRightStyle();

    bool render_t = ts > BHIDDEN && !tt;
    bool render_l = ls > BHIDDEN && begin && !lt;
    bool render_r = rs > BHIDDEN && end && !rt;
    bool render_b = bs > BHIDDEN && !bt;

    if(render_t) {
        bool ignore_left =
            (tc == lc) && (tt == lt) &&
            (ts >= OUTSET) &&
            (ls == DOTTED || ls == DASHED || ls == SOLID || ls == OUTSET);

        bool ignore_right =
            (tc == rc) && (tt == rt) &&
            (ts >= OUTSET) &&
            (rs == DOTTED || rs == DASHED || rs == SOLID || rs == INSET);

        drawBorder(p, _tx, _ty, _tx + w, _ty +  style->borderTopWidth(), BSTop, tc, style->color(), ts,
                   ignore_left?0:style->borderLeftWidth(),
                   ignore_right?0:style->borderRightWidth());
    }

    if(render_b) {
        bool ignore_left =
            (bc == lc) && (bt == lt) &&
            (bs >= OUTSET) &&
            (ls == DOTTED || ls == DASHED || ls == SOLID || ls == OUTSET);

        bool ignore_right =
            (bc == rc) && (bt == rt) &&
            (bs >= OUTSET) &&
            (rs == DOTTED || rs == DASHED || rs == SOLID || rs == INSET);

        drawBorder(p, _tx, _ty + h - style->borderBottomWidth(), _tx + w, _ty + h, BSBottom, bc, style->color(), bs,
                   ignore_left?0:style->borderLeftWidth(),
                   ignore_right?0:style->borderRightWidth());
    }

    if(render_l)
    {
	bool ignore_top =
	  (tc == lc) && (tt == lt) &&
	  (ls >= OUTSET) &&
	  (ts == DOTTED || ts == DASHED || ts == SOLID || ts == OUTSET);

	bool ignore_bottom =
	  (bc == lc) && (bt == lt) &&
	  (ls >= OUTSET) &&
	  (bs == DOTTED || bs == DASHED || bs == SOLID || bs == INSET);

        drawBorder(p, _tx, _ty, _tx + style->borderLeftWidth(), _ty + h, BSLeft, lc, style->color(), ls,
                   ignore_top?0:style->borderTopWidth(),
                   ignore_bottom?0:style->borderBottomWidth());
    }

    if(render_r)
    {
	bool ignore_top =
	  (tc == rc) && (tt == rt) &&
	  (rs >= DOTTED || rs == INSET) &&
	  (ts == DOTTED || ts == DASHED || ts == SOLID || ts == OUTSET);

	bool ignore_bottom =
	  (bc == rc) && (bt == rt) &&
	  (rs >= DOTTED || rs == INSET) &&
	  (bs == DOTTED || bs == DASHED || bs == SOLID || bs == INSET);

        drawBorder(p, _tx + w - style->borderRightWidth(), _ty, _tx + w, _ty + h, BSRight, rc, style->color(), rs,
                   ignore_top?0:style->borderTopWidth(),
                   ignore_bottom?0:style->borderBottomWidth());
    }
}

void RenderObject::paintOutline(QPainter *p, int _tx, int _ty, int w, int h, const RenderStyle* style)
{
    int ow = style->outlineWidth();
    if(!ow) return;

    const QColor& oc = style->outlineColor();
    EBorderStyle os = style->outlineStyle();
    // ### outline-offset should be implemented in renderInline before reactivated here
    int offset = 0; // style->outlineOffset();

#ifdef APPLE_CHANGES
    if (style->outlineStyleIsAuto()) {
        p->initFocusRing(ow, offset, oc);
        addFocusRingRects(p, _tx, _ty);
        p->drawFocusRing();
        p->clearFocusRing();
        return;
    }
#endif

    _tx -= offset;
    _ty -= offset;
    w += 2*offset;
    h += 2*offset;

    drawBorder(p, _tx-ow, _ty-ow, _tx, _ty+h+ow, BSLeft,
               QColor(oc), style->color(),
               os, ow, ow, true);

    drawBorder(p, _tx-ow, _ty-ow, _tx+w+ow, _ty, BSTop,
               QColor(oc), style->color(),
               os, ow, ow, true);

    drawBorder(p, _tx+w, _ty-ow, _tx+w+ow, _ty+h+ow, BSRight,
               QColor(oc), style->color(),
               os, ow, ow, true);

    drawBorder(p, _tx-ow, _ty+h, _tx+w+ow, _ty+h+ow, BSBottom,
               QColor(oc), style->color(),
               os, ow, ow, true);

}

void RenderObject::paint( PaintInfo&, int /*tx*/, int /*ty*/)
{
}

void RenderObject::repaintRectangle(int x, int y, int w, int h, bool immediate, bool f)
{
    if(parent()) parent()->repaintRectangle(x, y, w, h, immediate, f);
}

#ifdef ENABLE_DUMP

QString RenderObject::information() const
{
    QString str;
    QTextStream ts( &str, IO_WriteOnly );
    ts << renderName()
        << "(" << (style() ? style()->refCount() : 0) << ")"
       << ": " << (void*)this << "  ";
    if (isInline()) ts << "il ";
    if (childrenInline()) ts << "ci ";
    if (isFloating()) ts << "fl ";
    if (isAnonymous()) ts << "an ";
    if (isRelPositioned()) ts << "rp ";
    if (isPositioned()) ts << "ps ";
    if (isReplaced()) ts << "rp ";
    if (overhangingContents()) ts << "oc ";
    if (needsLayout()) ts << "nl ";
    if (minMaxKnown()) ts << "mmk ";
    if (m_recalcMinMax) ts << "rmm ";
    if (mouseInside()) ts << "mi ";
    if (style() && style()->zIndex()) ts << "zI: " << style()->zIndex();
    if (style() && style()->hasAutoZIndex()) ts << "zI: auto ";
    if (element()) {
        if (element()->active()) ts << "act ";
        if (element()->hasAnchor()) ts << "anchor ";
        if (element()->focused()) ts << "focus ";
        ts << " <" <<  getTagName(element()->id()) << ">";

    } else if (isPseudoAnonymous() && style() && style()->styleType() != RenderStyle::NOPSEUDO) {
        ts << " <" <<  getTagName(node()->id());
        QString pseudo;
        switch (style()->styleType()) {
          case RenderStyle::FIRST_LETTER:
            pseudo = ":first-letter"; break;
          case RenderStyle::BEFORE:
            pseudo = ":before"; break;
          case RenderStyle::AFTER:
            pseudo = ":after"; break;
          default:
            pseudo = ":pseudo-element";
        }
        ts << pseudo;
        ts << ">";
    }
    ts << " (" << xPos() << "," << yPos() << "," << width() << "," << height() << ")"
       << " [" << minWidth() << "-" << maxWidth() << "]"
       << " { mT: " << marginTop() << " qT: " << isTopMarginQuirk()
       << " mB: " << marginBottom() << " qB: " << isBottomMarginQuirk()
       << "}"
        << (isTableCell() ?
            ( QString::fromLatin1(" [r=") +
              QString::number( static_cast<const RenderTableCell *>(this)->row() ) +
              QString::fromLatin1(" c=") +
              QString::number( static_cast<const RenderTableCell *>(this)->col() ) +
              QString::fromLatin1(" rs=") +
              QString::number( static_cast<const RenderTableCell *>(this)->rowSpan() ) +
              QString::fromLatin1(" cs=") +
              QString::number( static_cast<const RenderTableCell *>(this)->colSpan() ) +
              QString::fromLatin1("]") ) : QString::null );
    if ( layer() )
        ts << " layer=" << layer();
    if ( continuation() )
        ts << " continuation=" << continuation();
    if (isText())
        ts << " \"" << QConstString(static_cast<const RenderText *>(this)->text(), kMin(static_cast<const RenderText *>(this)->length(), 10u)).string() << "\"";
    return str;
}

void RenderObject::printTree(int indent) const
{
    QString ind;
    ind.fill(' ', indent);

    kdDebug() << ind << information() << endl;

    RenderObject *child = firstChild();
    while( child != 0 )
    {
        child->printTree(indent+2);
        child = child->nextSibling();
    }
}

static QTextStream &operator<<(QTextStream &ts, const QRect &r)
{
    return ts << "at (" << r.x() << "," << r.y() << ") size " << r.width() << "x" << r.height();
}

void RenderObject::dump(QTextStream &ts, const QString &ind) const
{
    if ( !layer() )
        ts << endl;

    ts << ind << renderName();

    if (style() && style()->zIndex()) {
        ts << " zI: " << style()->zIndex();
    }

    if (element()) {
        QString tagName(getTagName(element()->id()));
        if (!tagName.isEmpty()) {
            ts << " {" << tagName << "}";
        }
    } else if (isPseudoAnonymous() && style() && style()->styleType() != RenderStyle::NOPSEUDO) {
        QString pseudo;
        QString tagName(getTagName(node()->id()));
        switch (style()->styleType()) {
          case RenderStyle::FIRST_LETTER:
            pseudo = ":first-letter"; break;
          case RenderStyle::BEFORE:
            pseudo = ":before"; break;
          case RenderStyle::AFTER:
            pseudo = ":after"; break;
          default:
            pseudo = ":pseudo-element";
        }
        ts << " {" << tagName << pseudo << "}";
    }

    QRect r(xPos(), yPos(), width(), height());
    ts << " " << r;

    if ( parent() )
        ts << style()->createDiff( *parent()->style() );

    if (isAnonymous()) { ts << " anonymousBox"; }
    if (isFloating()) { ts << " floating"; }
    if (isPositioned()) { ts << " positioned"; }
    if (isRelPositioned()) { ts << " relPositioned"; }
    if (isText()) { ts << " text"; }