NS_IMETHODIMP
nsMathMLmoFrame::Reflow(nsPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus)
{
// certain values use units that depend on our style context, so
// it is safer to just process the whole lot here
ProcessOperatorData();
// play safe by not passing invisible operators to the font subsystem because
// some platforms risk selecting strange glyphs for them and give bad inter-space
if (NS_MATHML_OPERATOR_IS_INVISIBLE(mFlags)) {
// return empty space for now, but this is not yet final since there
// can be lspace and rspace attributes that reclaim some room.
// These will be dealt with later in Stretch().
aDesiredSize.width = 0;
aDesiredSize.height = 0;
aDesiredSize.ascent = 0;
aDesiredSize.mBoundingMetrics = nsBoundingMetrics();
aStatus = NS_FRAME_COMPLETE;
NS_FRAME_SET_TRUNCATION(aStatus, aReflowState, aDesiredSize);
return NS_OK;
}
return nsMathMLTokenFrame::Reflow(aPresContext, aDesiredSize,
aReflowState, aStatus);
}
/* virtual */ void
nsMathMLmoFrame::GetIntrinsicISizeMetrics(nsRenderingContext *aRenderingContext, nsHTMLReflowMetrics& aDesiredSize)
{
ProcessOperatorData();
if (UseMathMLChar()) {
uint32_t stretchHint = GetStretchHint(mFlags, mPresentationData, true,
StyleFont());
aDesiredSize.Width() = mMathMLChar.
GetMaxWidth(PresContext(), *aRenderingContext,
stretchHint, mMaxSize,
NS_MATHML_OPERATOR_MAXSIZE_IS_ABSOLUTE(mFlags));
}
else {
nsMathMLTokenFrame::GetIntrinsicISizeMetrics(aRenderingContext,
aDesiredSize);
}
// leadingSpace and trailingSpace are actually applied to the outermost
// embellished container but for determining total intrinsic width it should
// be safe to include it for the core here instead.
bool isRTL = StyleVisibility()->mDirection;
aDesiredSize.Width() +=
mEmbellishData.leadingSpace + mEmbellishData.trailingSpace;
aDesiredSize.mBoundingMetrics.width = aDesiredSize.Width();
if (isRTL) {
aDesiredSize.mBoundingMetrics.leftBearing += mEmbellishData.trailingSpace;
aDesiredSize.mBoundingMetrics.rightBearing += mEmbellishData.trailingSpace;
} else {
aDesiredSize.mBoundingMetrics.leftBearing += mEmbellishData.leadingSpace;
aDesiredSize.mBoundingMetrics.rightBearing += mEmbellishData.leadingSpace;
}
}
NS_IMETHODIMP
nsMathMLmoFrame::TransmitAutomaticData()
{
// this will cause us to re-sync our flags from scratch
// but our returned 'form' is still not final (bug 133429), it will
// be recomputed to its final value during the next call in Reflow()
mEmbellishData.coreFrame = nullptr;
ProcessOperatorData();
return NS_OK;
}
void
nsMathMLmoFrame::Reflow(nsPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus)
{
// certain values use units that depend on our style context, so
// it is safer to just process the whole lot here
ProcessOperatorData();
nsMathMLTokenFrame::Reflow(aPresContext, aDesiredSize,
aReflowState, aStatus);
}
/* virtual */ nscoord
nsMathMLmoFrame::GetIntrinsicWidth(nsRenderingContext *aRenderingContext)
{
ProcessOperatorData();
nscoord width;
if (UseMathMLChar()) {
uint32_t stretchHint = GetStretchHint(mFlags, mPresentationData, true);
width = mMathMLChar.
GetMaxWidth(PresContext(), *aRenderingContext,
stretchHint, mMaxSize,
NS_MATHML_OPERATOR_MAXSIZE_IS_ABSOLUTE(mFlags));
}
else {
width = nsMathMLTokenFrame::GetIntrinsicWidth(aRenderingContext);
}
// leadingSpace and trailingSpace are actually applied to the outermost
// embellished container but for determining total intrinsic width it should
// be safe to include it for the core here instead.
width += mEmbellishData.leadingSpace + mEmbellishData.trailingSpace;
return width;
}
