& (NS_FRAME_IS_DIRTY | NS_FRAME_HAS_DIRTY_CHILDREN)) != 0;
& (NS_FRAME_IS_DIRTY | NS_FRAME_HAS_DIRTY_CHILDREN)) != 0 : PR_FALSE;
nsFieldSetFrame::Reflow(nsPresContext*          aPresContext,                        nsHTMLReflowMetrics&     aDesiredSize,                        const nsHTMLReflowState& aReflowState,                        nsReflowStatus&          aStatus){  DO_GLOBAL_REFLOW_COUNT("nsFieldSetFrame", aReflowState.reason);  DISPLAY_REFLOW(aPresContext, this, aReflowState, aDesiredSize, aStatus);  // Initialize OUT parameter  aStatus = NS_FRAME_COMPLETE;  // Should we create a space manager?  nsAutoSpaceManager autoSpaceManager(NS_CONST_CAST(nsHTMLReflowState &, aReflowState));  // XXXldb If we start storing the space manager in the frame rather  // than keeping it around only during reflow then we should create it  // only when there are actually floats to manage.  Otherwise things  // like tables will gain significant bloat.  if (NS_BLOCK_SPACE_MGR & mState)    autoSpaceManager.CreateSpaceManagerFor(aPresContext, this);     //------------ Handle Incremental Reflow -----------------   PRBool reflowContent = PR_TRUE;   PRBool reflowLegend = PR_TRUE;   nsReflowReason reason = aReflowState.reason;    if ( aReflowState.reason == eReflowReason_Incremental ) {        nsHTMLReflowCommand *command = aReflowState.path->mReflowCommand;        // See if it's targeted at us        if (command) {            nsReflowType  reflowType;            command->GetType(reflowType);            switch (reflowType) {              case eReflowType_StyleChanged:                   {                    nsHTMLReflowState newState(aReflowState);                    newState.reason = eReflowReason_StyleChange;                    return Reflow(aPresContext, aDesiredSize, newState, aStatus);                  }                  break;                  // if its a dirty type then reflow us with a dirty reflow                  case eReflowType_ReflowDirty:                   {                    nsHTMLReflowState newState(aReflowState);                    newState.reason = eReflowReason_Dirty;                    return Reflow(aPresContext, aDesiredSize, newState, aStatus);                  }                  break;                  default:                    NS_ERROR("Unexpected Reflow Type");            }        } else {             reflowContent = PR_FALSE;             reflowLegend = PR_FALSE;             nsReflowPath::iterator iter = aReflowState.path->FirstChild();             nsReflowPath::iterator end = aReflowState.path->EndChildren();             for ( ; iter != end; ++iter) {                 if (*iter == mLegendFrame)                     reflowLegend = PR_TRUE;                 else if (*iter == mContentFrame)                     reflowContent = PR_TRUE;             }        }    }    // if dirty then check dirty flags    if (reason == eReflowReason_Dirty)     {      if (reflowContent) {        reflowContent =          (mContentFrame->GetStateBits()           & (NS_FRAME_IS_DIRTY | NS_FRAME_HAS_DIRTY_CHILDREN)) != 0;      }      if (reflowLegend) {        reflowLegend =          (mLegendFrame->GetStateBits()           & (NS_FRAME_IS_DIRTY | NS_FRAME_HAS_DIRTY_CHILDREN)) != 0;      }    }    // availSize could have unconstrained values, don't perform any addition on them    nsSize availSize(aReflowState.mComputedWidth, aReflowState.availableHeight);    // get our border and padding    const nsMargin &borderPadding = aReflowState.mComputedBorderPadding;    const nsMargin &padding       = aReflowState.mComputedPadding;    nsMargin border = borderPadding - padding;    if (aDesiredSize.mComputeMEW) {      aDesiredSize.mMaxElementWidth = borderPadding.left + borderPadding.right;    }        // Figure out how big the legend is if there is one.     // get the legend's margin    nsMargin legendMargin(0,0,0,0);    // reflow the legend only if needed    if (mLegendFrame) {        const nsStyleMargin* marginStyle = mLegendFrame->GetStyleMargin();        marginStyle->GetMargin(legendMargin);        if (reflowLegend) {          nsHTMLReflowState legendReflowState(aPresContext, aReflowState,                                              mLegendFrame, nsSize(NS_INTRINSICSIZE,NS_INTRINSICSIZE),                                              reason);          // always give the legend as much size as it needs          legendReflowState.mComputedWidth = NS_INTRINSICSIZE;          legendReflowState.mComputedHeight = NS_INTRINSICSIZE;          nsHTMLReflowMetrics legendDesiredSize(0,0);          ReflowChild(mLegendFrame, aPresContext, legendDesiredSize, legendReflowState,                      0, 0, NS_FRAME_NO_MOVE_FRAME, aStatus);#ifdef NOISY_REFLOW          printf("  returned (%d, %d)\n", legendDesiredSize.width, legendDesiredSize.height);          if (legendDesiredSize.mComputeMEW)            printf("  and maxEW %d\n",                    legendDesiredSize.mMaxElementWidth);#endif          // figure out the legend's rectangle          mLegendRect.width  = legendDesiredSize.width + legendMargin.left + legendMargin.right;          mLegendRect.height = legendDesiredSize.height + legendMargin.top + legendMargin.bottom;          mLegendRect.x = borderPadding.left;          mLegendRect.y = 0;          nscoord oldSpace = mLegendSpace;          mLegendSpace = 0;          if (mLegendRect.height > border.top) {              // center the border on the legend              mLegendSpace = mLegendRect.height - border.top;          } else {              mLegendRect.y = (border.top - mLegendRect.height)/2;          }          // if the legend space changes then we need to reflow the           // content area as well.          if (mLegendSpace != oldSpace) {              if (reflowContent == PR_FALSE || reason == eReflowReason_Dirty) {                 reflowContent = PR_TRUE;                 reason = eReflowReason_Resize;              }          }          // if we are contrained then remove the legend from our available height.          if (NS_INTRINSICSIZE != availSize.height) {             if (availSize.height >= mLegendSpace)                 availSize.height -= mLegendSpace;          }            // don't get any smaller than the legend          if (NS_INTRINSICSIZE != availSize.width) {             if (availSize.width < mLegendRect.width)                 availSize.width = mLegendRect.width;          }          FinishReflowChild(mLegendFrame, aPresContext, &legendReflowState,                             legendDesiredSize, 0, 0, NS_FRAME_NO_MOVE_FRAME);            }    }    nsRect contentRect;    // reflow the content frame only if needed    if (mContentFrame) {        if (reflowContent) {            availSize.width = aReflowState.mComputedWidth;            nsHTMLReflowState kidReflowState(aPresContext, aReflowState, mContentFrame,                                             availSize, reason);            nsHTMLReflowMetrics kidDesiredSize(aDesiredSize.mComputeMEW, aDesiredSize.mFlags);            // Reflow the frame            ReflowChild(mContentFrame, aPresContext, kidDesiredSize, kidReflowState,                        borderPadding.left + kidReflowState.mComputedMargin.left,                        borderPadding.top + mLegendSpace + kidReflowState.mComputedMargin.top,                        0, aStatus);            // set the rect. make sure we add the margin back in.            contentRect.SetRect(borderPadding.left,borderPadding.top + mLegendSpace,kidDesiredSize.width ,kidDesiredSize.height);            if (aReflowState.mComputedHeight != NS_INTRINSICSIZE &&                borderPadding.top + mLegendSpace+kidDesiredSize.height > aReflowState.mComputedHeight) {              kidDesiredSize.height = aReflowState.mComputedHeight-(borderPadding.top + mLegendSpace);            }            FinishReflowChild(mContentFrame, aPresContext, &kidReflowState,                               kidDesiredSize, contentRect.x, contentRect.y, 0);            if (aDesiredSize.mComputeMEW) {              aDesiredSize.mMaxElementWidth = kidDesiredSize.mMaxElementWidth;              if (eStyleUnit_Coord == aReflowState.mStylePosition->mWidth.GetUnit() &&                  NS_INTRINSICSIZE != aReflowState.mComputedWidth)                aDesiredSize.mMaxElementWidth = aReflowState.mComputedWidth;              if (eStyleUnit_Percent == aReflowState.mStylePosition->mWidth.GetUnit())                aDesiredSize.mMaxElementWidth = 0;              aDesiredSize.mMaxElementWidth += borderPadding.left + borderPadding.right;            }            if (aDesiredSize.mFlags & NS_REFLOW_CALC_MAX_WIDTH) {              aDesiredSize.mMaximumWidth = kidDesiredSize.mMaximumWidth +                                           borderPadding.left + borderPadding.right;            }            NS_FRAME_TRACE_REFLOW_OUT("FieldSet::Reflow", aStatus);        } else {            // if we don't need to reflow just get the old size            contentRect = mContentFrame->GetRect();            const nsStyleMargin* marginStyle = mContentFrame->GetStyleMargin();            nsMargin m(0,0,0,0);            marginStyle->GetMargin(m);            contentRect.Inflate(m);        }    }    // use the computed width if the inner content does not fill it    if (aReflowState.mComputedWidth != NS_INTRINSICSIZE &&        aReflowState.mComputedWidth > contentRect.width) {      contentRect.width = aReflowState.mComputedWidth;    }    if (mLegendFrame) {      // if the content rect is larger then the  legend we can align the legend      if (contentRect.width > mLegendRect.width) {        PRInt32 align = ((nsLegendFrame*)mLegendFrame)->GetAlign();        switch(align) {          case NS_STYLE_TEXT_ALIGN_RIGHT:            mLegendRect.x = contentRect.width - mLegendRect.width + borderPadding.left;            break;          case NS_STYLE_TEXT_ALIGN_CENTER:            float p2t;            p2t = aPresContext->PixelsToTwips();            mLegendRect.x = NSIntPixelsToTwips((nscoord) NSToIntRound((float)(contentRect.width/2 - mLegendRect.width/2 + borderPadding.left) / p2t),p2t);        }        } else {        //otherwise make place for the legend        contentRect.width = mLegendRect.width;      }      // place the legend      nsRect actualLegendRect(mLegendRect);      actualLegendRect.Deflate(legendMargin);      nsPoint curOrigin = mLegendFrame->GetPosition();      // only if the origin changed      if ((curOrigin.x != mLegendRect.x) || (curOrigin.y != mLegendRect.y)) {          mLegendFrame->SetPosition(nsPoint(actualLegendRect.x , actualLegendRect.y));          nsContainerFrame::PositionFrameView(aPresContext, mLegendFrame);          // We need to recursively process the legend frame's          // children since we're moving the frame after Reflow.          nsContainerFrame::PositionChildViews(aPresContext, mLegendFrame);      }    }    // Return our size and our result    if (aReflowState.mComputedHeight == NS_INTRINSICSIZE) {       aDesiredSize.height = mLegendSpace +                              borderPadding.top +                             contentRect.height +                             borderPadding.bottom;    } else {       nscoord min = borderPadding.top + borderPadding.bottom + mLegendRect.height;       aDesiredSize.height = aReflowState.mComputedHeight + borderPadding.top + borderPadding.bottom;       if (aDesiredSize.height < min)           aDesiredSize.height = min;    }    aDesiredSize.width = contentRect.width + borderPadding.left + borderPadding.right;    aDesiredSize.ascent  = aDesiredSize.height;    aDesiredSize.descent = 0;    if (aDesiredSize.mComputeMEW) {        // if the legend is wider use it        if (aDesiredSize.mMaxElementWidth < mLegendRect.width + borderPadding.left + borderPadding.right)          aDesiredSize.mMaxElementWidth = mLegendRect.width + borderPadding.left + borderPadding.right;    }    aDesiredSize.mOverflowArea = nsRect(0, 0, aDesiredSize.width, aDesiredSize.height);    // make the mMaximumWidth large enough if the legendframe determines the size    if ((aDesiredSize.mFlags & NS_REFLOW_CALC_MAX_WIDTH) && mLegendFrame) {      aDesiredSize.mMaximumWidth = PR_MAX(aDesiredSize.mMaximumWidth, mLegendRect.width +                                          borderPadding.left + borderPadding.right);    }    if (mLegendFrame)      ConsiderChildOverflow(aPresContext, aDesiredSize.mOverflowArea, mLegendFrame);    if (mContentFrame)      ConsiderChildOverflow(aPresContext, aDesiredSize.mOverflowArea, mContentFrame);    FinishAndStoreOverflow(&aDesiredSize);  NS_FRAME_SET_TRUNCATION(aStatus, aReflowState, aDesiredSize);  return NS_OK;}