C++ InlineFlowBox::width方法代码示例

void RenderTextTrackCue::repositionGenericCue()
{
    ASSERT(firstChild());
    InlineFlowBox* firstLineBox = toRenderInline(firstChild())->firstLineBox();
    if (static_cast<TextTrackCueGeneric*>(m_cue)->useDefaultPosition() && firstLineBox) {
        LayoutUnit parentWidth = containingBlock()->logicalWidth();
        LayoutUnit width = firstLineBox->width();
        LayoutUnit right = (parentWidth / 2) - (width / 2);
        setX(right);
    }
    repositionCueSnapToLinesNotSet();
}

void RenderTextTrackCue::repositionGenericCue()
{
    TextTrackCueGeneric* cue = static_cast<TextTrackCueGeneric*>(m_cue);
    if (!cue->useDefaultPosition())
        return;

    ASSERT(firstChild());

    InlineFlowBox* firstLineBox = toRenderInline(firstChild())->firstLineBox();
    if (!firstLineBox)
        return;

    LayoutUnit parentWidth = containingBlock()->logicalWidth();
    LayoutUnit width = firstLineBox->width();
    LayoutUnit right = (parentWidth / 2) - (width / 2);
    setX(right);
}

void RenderInline::caretPos(int offset, int flags, int &_x, int &_y, int &width, int &height)
{
    _x = -1;

    RenderBlock *cb = containingBlock();
    bool rtl = cb->style()->direction() == RTL;
    bool outsideEnd = flags & CFOutsideEnd;
    // I need to explain that: outsideEnd contains a meaningful value if
    // and only if flags & CFOutside is set. If it is not, then randomly
    // either the first or the last line box is returned.
    // This doesn't matter because the only case this can happen is on an
    // empty inline element, whose first and last line boxes are actually
    // the same.
    InlineFlowBox *line = !outsideEnd ^ rtl ? firstLineBox() : lastLineBox();

    if(!line)
    { // umpf, handle "gracefully"
        RenderFlow::caretPos(offset, flags, _x, _y, width, height);
        return;
    }

    _x = line->xPos();
    width = 1; // ### regard CFOverride

    // Place caret outside the border
    if(flags & CFOutside)
    {
        RenderStyle *s = element() && element()->parent() && element()->parent()->renderer() ? element()->parent()->renderer()->style() : style();
        const QFontMetrics &fm = s->fontMetrics();
        _y = line->yPos() + line->baseline() - fm.ascent();
        height = fm.height();

        if(!outsideEnd ^ rtl)
        {
            _x -= line->marginBorderPaddingLeft();
        }
        else
        {
            _x += line->width() + line->marginBorderPaddingRight();
        }
    }
    else
    {
        const QFontMetrics &fm = style()->fontMetrics();
        _y = line->yPos() + line->baseline() - fm.ascent();
        height = fm.height();
    }

    int absx, absy;
    if(cb && cb->absolutePosition(absx, absy))
    {
        // kdDebug(6040) << "absx=" << absx << " absy=" << absy << endl;
        _x += absx;
        _y += absy;
    }
    else
    {
        // we don't know our absolute position, and there is no point returning
        // just a relative one
        _x = _y = -1;
    }
}

void RenderSVGInline::absoluteQuads(Vector<FloatQuad>& quads)
{
    const RenderObject* object = SVGRenderSupport::findTextRootObject(this);
    if (!object)
        return;

    FloatRect textBoundingBox = object->strokeBoundingBox();
    for (InlineFlowBox* box = firstLineBox(); box; box = box->nextLineBox())
        quads.append(localToAbsoluteQuad(FloatRect(textBoundingBox.x() + box->x(), textBoundingBox.y() + box->y(), box->width(), box->height())));
}